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annotate libinterp/corefcn/ft-text-renderer.cc @ 30564:796f54d4ddbf stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents a61e1a0f6024
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2009-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "base-text-renderer.h"
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31 #include "ft-text-renderer.h"
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32
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33 #if defined (HAVE_FREETYPE)
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34
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35 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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36 # pragma GCC diagnostic push
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37 # pragma GCC diagnostic ignored "-Wold-style-cast"
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38 #endif
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39
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40 #include <ft2build.h>
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41 #include FT_FREETYPE_H
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42 #include FT_GLYPH_H
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43
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44 #if defined (HAVE_FONTCONFIG)
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45 # include <fontconfig/fontconfig.h>
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46 #endif
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47
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48 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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49 # pragma GCC diagnostic pop
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50 #endif
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51
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52 #include <clocale>
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53 #include <cwchar>
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54 #include <map>
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55 #include <utility>
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56
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57 #include "singleton-cleanup.h"
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58 #include "unistr-wrappers.h"
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59
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60 #include "defaults.h"
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61 #include "error.h"
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62 #include "file-ops.h"
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63 #include "oct-env.h"
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64 #include "pr-output.h"
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65 #include "sysdep.h"
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66 #include "text-renderer.h"
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67
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68 namespace octave
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69 {
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70 // FIXME: maybe issue at most one warning per glyph/font/size/weight
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71 // combination.
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72
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73 static void
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74 warn_missing_glyph (FT_ULong c)
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75 {
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76 warning_with_id ("Octave:missing-glyph",
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77 "text_renderer: skipping missing glyph for character '%lx'", c);
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78 }
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79
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80 static void
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81 warn_glyph_render (FT_ULong c)
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82 {
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83 warning_with_id ("Octave:glyph-render",
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84 "text_renderer: unable to render glyph for character '%lx'", c);
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85 }
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86
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87 #if defined (_MSC_VER)
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88 // FIXME: is this really needed?
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89 //
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90 // This is just a trick to avoid multiple symbol definitions.
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91 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
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92 // that will cause MSVC not to generate a new instantiation and
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93 // use the imported one instead.
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94 # include "PermMatrix.h"
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95 #endif
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96
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97 // Forward declaration
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98 static void ft_face_destroyed (void *object);
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99
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100 class
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101 ft_manager
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102 {
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103 private:
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104
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105 ft_manager (void)
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106 : m_library (), m_freetype_initialized (false),
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107 m_fontconfig_initialized (false)
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108 {
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109 if (FT_Init_FreeType (&m_library))
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110 error ("unable to initialize FreeType library");
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111 else
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112 m_freetype_initialized = true;
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113
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114 #if defined (HAVE_FONTCONFIG)
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115 if (! FcInit ())
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116 error ("unable to initialize fontconfig library");
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117 else
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118 m_fontconfig_initialized = true;
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119 #endif
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120 }
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121
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122 public:
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123
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124 // No copying!
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125
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126 ft_manager (const ft_manager&) = delete;
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127
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128 ft_manager& operator = (const ft_manager&) = delete;
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129
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130 private:
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131
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132 ~ft_manager (void)
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133 {
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134 if (m_freetype_initialized)
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135 FT_Done_FreeType (m_library);
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136
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137 #if defined (HAVE_FONTCONFIG)
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138 // FIXME: Skip the call to FcFini because it can trigger the assertion
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139 //
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John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
140 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
141 //
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
142 // if (m_fontconfig_initialized)
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
143 // FcFini ();
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
144 #endif
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
145 }
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
146
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
147 public:
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
148
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
149 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
150 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
151 bool retval = true;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
152
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
153 if (! m_instance)
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
154 {
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
155 m_instance = new ft_manager ();
26369
0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347).
Andreas Weber <octave@josoansi.de>
parents: 26340
diff changeset
156 singleton_cleanup_list::add (cleanup_instance);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
157 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
158
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
159 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
160 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
161
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
162 static void cleanup_instance (void)
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
163 { delete m_instance; m_instance = nullptr; }
13992
e1f76bfe0452 apply singleton_cleanup to a few more classes
John W. Eaton <jwe@octave.org>
parents: 13730
diff changeset
164
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
165 static FT_Face get_font (const std::string& name, const std::string& weight,
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
166 const std::string& angle, double size,
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
167 FT_ULong c = 0)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
168 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
169 return (instance_ok ()
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
170 ? m_instance->do_get_font (name, weight, angle, size, c)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
171 : nullptr);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
172 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
173
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
174 static octave_map get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
175 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
176 return (instance_ok ()
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
177 ? m_instance->do_get_system_fonts ()
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
178 : octave_map ());
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
179 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
180
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
181 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
182 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
183 if (instance_ok ())
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
184 m_instance->do_font_destroyed (face);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
185 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
186
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
187 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
188
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
189 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
190 typedef std::map<ft_key, FT_Face> ft_cache;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
191
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
192 static octave_map do_get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
193 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
194 static octave_map font_map;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
195
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
196 if (font_map.isempty ())
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
197 {
28483
98889de398dd * ft-text-renderer.cc: Allow build to succeed if HAVE_FONTCONFIG is undefined.
John W. Eaton <jwe@octave.org>
parents: 28305
diff changeset
198 #if defined (HAVE_FONTCONFIG)
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
199 FcConfig *config = FcConfigGetCurrent();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
200 FcPattern *pat = FcPatternCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
201 FcObjectSet *os = FcObjectSetBuild (FC_FAMILY, FC_SLANT, FC_WEIGHT,
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
202 FC_CHARSET, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
203 FcFontSet *fs = FcFontList (config, pat, os);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
204
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
205 if (fs->nfont > 0)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
206 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
207 // Mark fonts that have at least all printable ASCII chars
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
208 FcCharSet *minimal_charset = FcCharSetCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
209 for (int i = 32; i < 127; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
210 FcCharSetAddChar (minimal_charset, static_cast<FcChar32> (i));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
211
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
212 string_vector fields (4);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
213 fields(0) = "family";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
214 fields(1) = "angle";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
215 fields(2) = "weight";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
216 fields(3) = "suitable";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
217
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
218 dim_vector dv (1, fs->nfont);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
219 Cell families (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
220 Cell angles (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
221 Cell weights (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
222 Cell suitable (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
223
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
224 unsigned char *family;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
225 int val;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
226 for (int i = 0; fs && i < fs->nfont; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
227 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
228 FcPattern *font = fs->fonts[i];
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
229 if (FcPatternGetString (font, FC_FAMILY, 0, &family)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
230 == FcResultMatch)
30390
a61e1a0f6024 maint: style check C++ files in libinterp/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 30119
diff changeset
231 families(i) = std::string (reinterpret_cast<char *> (family));
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
232 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
233 families(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
234
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
235 if (FcPatternGetInteger (font, FC_SLANT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
236 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
237 angles(i) = (val == FC_SLANT_ITALIC
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
238 || val == FC_SLANT_OBLIQUE)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
239 ? "italic" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
240 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
241 angles(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
242
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
243 if (FcPatternGetInteger (font, FC_WEIGHT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
244 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
245 weights(i) = (val == FC_WEIGHT_BOLD
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
246 || val == FC_WEIGHT_DEMIBOLD)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
247 ? "bold" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
248 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
249 weights(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
250
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
251 FcCharSet *cset;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
252 if (FcPatternGetCharSet (font, FC_CHARSET, 0, &cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
253 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
254 suitable(i) = (FcCharSetIsSubset (minimal_charset, cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
255 ? true : false);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
256 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
257 suitable(i) = false;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
258 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
259
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
260 font_map = octave_map (dv, fields);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
261
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
262 font_map.assign ("family", families);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
263 font_map.assign ("angle", angles);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
264 font_map.assign ("weight", weights);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
265 font_map.assign ("suitable", suitable);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
266
698c8b08fe8c New function uisetfont (bug #57130).
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parents: 27150
diff changeset
267 if (fs)
698c8b08fe8c New function uisetfont (bug #57130).
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diff changeset
268 FcFontSetDestroy (fs);
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parents: 27150
diff changeset
269 }
28483
98889de398dd * ft-text-renderer.cc: Allow build to succeed if HAVE_FONTCONFIG is undefined.
John W. Eaton <jwe@octave.org>
parents: 28305
diff changeset
270 #endif
27623
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parents: 27150
diff changeset
271 }
698c8b08fe8c New function uisetfont (bug #57130).
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parents: 27150
diff changeset
272
698c8b08fe8c New function uisetfont (bug #57130).
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diff changeset
273 return font_map;
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diff changeset
274 }
698c8b08fe8c New function uisetfont (bug #57130).
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diff changeset
275
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276 FT_Face do_get_font (const std::string& name, const std::string& weight,
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277 const std::string& angle, double size,
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diff changeset
278 FT_ULong search_code_point)
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diff changeset
279 {
23795
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280 FT_Face retval = nullptr;
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281
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diff changeset
282 #if defined (HAVE_FT_REFERENCE_FACE)
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diff changeset
283 // Look first into the font cache, then use fontconfig. If the font
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diff changeset
284 // is present in the cache, simply add a reference and return it.
17270
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285
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286 ft_key key (name + ':' + weight + ':' + angle + ':'
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diff changeset
287 + std::to_string (search_code_point), size);
30119
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parents: 30041
diff changeset
288 ft_cache::const_iterator it = m_cache.find (key);
17270
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parents: 17269
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289
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290 if (it != m_cache.end ())
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291 {
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292 FT_Reference_Face (it->second);
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293 return it->second;
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diff changeset
294 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
295 #endif
17270
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296
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297 static std::string fonts_dir;
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298
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299 if (fonts_dir.empty ())
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diff changeset
300 {
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diff changeset
301 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR");
24126
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diff changeset
302
24899
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parents: 24722
diff changeset
303 if (fonts_dir.empty ())
24900
00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348)
Mike Miller <mtmiller@octave.org>
parents: 24899
diff changeset
304 #if defined (SYSTEM_FREEFONT_DIR)
25460
627d6bde9b8d solve installation info initialization problem differently
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parents: 25440
diff changeset
305 fonts_dir = SYSTEM_FREEFONT_DIR;
24900
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Mike Miller <mtmiller@octave.org>
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diff changeset
306 #else
25460
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diff changeset
307 fonts_dir = config::oct_fonts_dir ();
24900
00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348)
Mike Miller <mtmiller@octave.org>
parents: 24899
diff changeset
308 #endif
24126
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diff changeset
309 }
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diff changeset
310
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
311
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
312 // Default font file
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diff changeset
313 std::string file;
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314
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diff changeset
315 if (! fonts_dir.empty ())
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diff changeset
316 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
John W. Eaton <jwe@octave.org>
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diff changeset
317 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans";
24126
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318
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diff changeset
319 if (weight == "bold")
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320 file += "Bold";
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diff changeset
321
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
322 if (angle == "italic" || angle == "oblique")
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diff changeset
323 file += "Oblique";
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diff changeset
324
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
325 file += ".otf";
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diff changeset
326 }
2390079a8aed Provide default font files and use them (bug #52150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 24076
diff changeset
327
14003
1555c5a177c9 better fix for fontconfig segfault
John W. Eaton <jwe@octave.org>
parents: 13999
diff changeset
328 #if defined (HAVE_FONTCONFIG)
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
329 if ((search_code_point != 0 || name != "*") && m_fontconfig_initialized)
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diff changeset
330 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
331 int fc_weight, fc_angle;
9403
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diff changeset
332
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diff changeset
333 if (weight == "bold")
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
334 fc_weight = FC_WEIGHT_BOLD;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
335 else
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
336 fc_weight = FC_WEIGHT_NORMAL;
9403
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parents:
diff changeset
337
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diff changeset
338 if (angle == "italic")
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
339 fc_angle = FC_SLANT_ITALIC;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
340 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
341 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
342 else
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
343 fc_angle = FC_SLANT_ROMAN;
9403
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diff changeset
344
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diff changeset
345 FcPattern *pat = FcPatternCreate ();
9403
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diff changeset
346
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diff changeset
347 FcPatternAddString (pat, FC_FAMILY,
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
348 (reinterpret_cast<const FcChar8 *>
24126
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
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diff changeset
349 (name.c_str ())));
9616
2093499ec9f4 avoid crash if default font can't be found
John W. Eaton <jwe@octave.org>
parents: 9406
diff changeset
350
22407
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diff changeset
351 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
352 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
353 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403
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parents:
diff changeset
354
29678
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
355 if (search_code_point > 0)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
356 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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parents: 29655
diff changeset
357 FcCharSet *minimal_charset = FcCharSetCreate ();
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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parents: 29655
diff changeset
358 FcCharSetAddChar (minimal_charset,
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
359 static_cast<FcChar32> (search_code_point));
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
360 FcPatternAddCharSet (pat, FC_CHARSET, minimal_charset);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
361 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
362
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
363 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407
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parents: 22331
diff changeset
364 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
365 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
366 FcPattern *match;
9403
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diff changeset
367
22407
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diff changeset
368 FcDefaultSubstitute (pat);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
369
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
370 match = FcFontMatch (nullptr, pat, &res);
9833
637fa784d102 Allow more font matches
godfrey@isl.Stanford.EDU
parents: 9619
diff changeset
371
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
372 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
373 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
374 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
375 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
376 unsigned char *tmp;
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
377
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
378 FcPatternGetString (match, FC_FILE, 0, &tmp);
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
379 file = reinterpret_cast<char *> (tmp);
22407
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Rik <rik@octave.org>
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diff changeset
380 }
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
381 else
24126
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 24076
diff changeset
382 ::warning ("could not match any font: %s-%s-%s-%g, using default font",
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
383 name.c_str (), weight.c_str (), angle.c_str (),
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
384 size);
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
385
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
386 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
387 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
388 }
9403
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parents:
diff changeset
389
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
390 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
391 }
9403
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parents:
diff changeset
392 #endif
4af6e29449c1 [mq]: graphics_text_engine
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parents:
diff changeset
393
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
394 if (file.empty ())
24126
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 24076
diff changeset
395 ::warning ("unable to find default font files");
2390079a8aed Provide default font files and use them (bug #52150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 24076
diff changeset
396 else
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
397 {
29489
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
398 std::string ascii_file = sys::get_ASCII_filename (file);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
399
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
400 if (FT_New_Face (m_library, ascii_file.c_str (), 0, &retval))
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
401 ::warning ("ft_manager: unable to load font: %s", file.c_str ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
402 #if defined (HAVE_FT_REFERENCE_FACE)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
403 else
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
404 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
405 // Install a finalizer to notify ft_manager that the font is
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
406 // being destroyed. The class ft_manager only keeps weak
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
407 // references to font objects.
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
408
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
409 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
410 retval->generic.finalizer = ft_face_destroyed;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
411
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
412 // Insert loaded font into the cache.
28206
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27923
diff changeset
413 if (FT_Reference_Face (retval) == 0)
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
414 m_cache[key] = retval;
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
415 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
416 #endif
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
417 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
418
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
419 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
420 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
421
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
422 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
423 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
424 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
425 {
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
426 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data);
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
427
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
428 m_cache.erase (*pkey);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
429 delete pkey;
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
430 face->generic.data = nullptr;
28206
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27923
diff changeset
431 FT_Done_Face (face);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
432 }
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
433 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
434
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
435 //--------
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
436
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
437 static ft_manager *m_instance;
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
438
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
439 // Cache the fonts loaded by FreeType. This cache only contains
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
440 // weak references to the fonts, strong references are only present
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
441 // in class text_renderer.
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
442 ft_cache m_cache;
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
443
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
444 FT_Library m_library;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
445 bool m_freetype_initialized;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
446 bool m_fontconfig_initialized;
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
447 };
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
448
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
449 ft_manager *ft_manager::m_instance = nullptr;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
450
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
451 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
452 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
453 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
454 ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object));
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
455 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
456
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
457 class
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
458 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
459 ft_text_renderer : public base_text_renderer
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
460 {
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
461 public:
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
462
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
463 enum
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parents: 22326
diff changeset
464 {
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diff changeset
465 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
466 MODE_RENDER = 1
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diff changeset
467 };
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parents: 22326
diff changeset
468
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
469 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
470
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
471 ft_text_renderer (void)
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
472 : base_text_renderer (), m_font (), m_bbox (1, 4, 0.0), m_halign (0),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
473 m_xoffset (0), m_line_yoffset (0), m_yoffset (0), m_mode (MODE_BBOX),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
474 m_color (dim_vector (1, 3), 0), m_do_strlist (false), m_strlist (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
475 m_line_xoffset (0), m_ymin (0), m_ymax (0), m_deltax (0),
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
476 m_max_fontsize (0), m_antialias (true)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
477 { }
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
478
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
479 // No copying!
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
480
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
481 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
482
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
483 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
484
22868
87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors
John W. Eaton <jwe@octave.org>
parents: 22865
diff changeset
485 ~ft_text_renderer (void) = default;
22331
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diff changeset
486
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
487 void visit (text_element_string& e);
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
488
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
489 void visit (text_element_list& e);
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diff changeset
490
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
491 void visit (text_element_subscript& e);
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parents: 22326
diff changeset
492
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
493 void visit (text_element_superscript& e);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
494
22331
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diff changeset
495 void visit (text_element_color& e);
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
496
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
497 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
498
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
499 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
500
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
501 void visit (text_element_fontstyle& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
502
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
503 void visit (text_element_symbol& e);
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parents: 22326
diff changeset
504
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
505 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
506
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
507 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
508
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
509 uint8NDArray get_pixels (void) const { return m_pixels; }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
510
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
511 Matrix get_boundingbox (void) const { return m_bbox; }
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
512
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
513 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
514 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
515
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
516 Matrix get_extent (text_element *elt, double rotation = 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
517 Matrix get_extent (const std::string& txt, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
518 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
519
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
520 void set_anti_aliasing (bool val) { m_antialias = val; };
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
521
22331
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diff changeset
522 void set_font (const std::string& name, const std::string& weight,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
523 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
524
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
525 octave_map get_system_fonts (void);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
526
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
527 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
528
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
529 void set_mode (int m);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
530
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
531 void text_to_pixels (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
532 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
533 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
534 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
535 bool handle_rotation);
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diff changeset
536
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
537 private:
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
538
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
539 // Class to hold information about fonts and a strong
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
540 // reference to the font objects loaded by FreeType.
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
541
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
542 class ft_font : public text_renderer::font
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
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diff changeset
543 {
22331
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diff changeset
544 public:
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
545
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
546 ft_font (void)
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
547 : text_renderer::font (), m_face (nullptr) { }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
548
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
549 ft_font (const std::string& nm, const std::string& wt,
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
550 const std::string& ang, double sz, FT_Face f = nullptr)
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
551 : text_renderer::font (nm, wt, ang, sz), m_face (f)
22331
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diff changeset
552 { }
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
553
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
554 ft_font (const ft_font& ft);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
555
22331
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diff changeset
556 ~ft_font (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
557 {
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
558 if (m_face)
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
559 FT_Done_Face (m_face);
22331
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diff changeset
560 }
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
561
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
562 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
563
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
564 bool is_valid (void) const { return get_face (); }
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
565
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
566 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
567
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
568 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
569
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
570 mutable FT_Face m_face;
22331
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diff changeset
571 };
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
572
22331
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diff changeset
573 void push_new_line (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
574
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
575 void update_line_bbox (void);
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John W. Eaton <jwe@octave.org>
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diff changeset
576
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
577 void compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
578
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
579 int compute_line_xoffset (const Matrix& lb) const;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
580
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
581 FT_UInt process_character (FT_ULong code, FT_UInt previous,
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
582 std::string& sub_font);
22331
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diff changeset
583
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
584 public:
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
585
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
586 void text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
587 std::list<text_renderer::string>& lst, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
588 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
589 const caseless_str& interp);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
590
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
591 private:
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
592
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
593 // The current font used by the renderer.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
594 ft_font m_font;
22331
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diff changeset
595
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
596 // Used to stored the bounding box corresponding to the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
597 // The bounding box has the form [x, y, w, h] where x and y represent the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
598 // coordinates of the bottom left corner relative to the anchor point of
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
599 // the text (== start of text on the baseline). Due to font descent or
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
600 // multiple lines, the value y is usually negative.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
601 Matrix m_bbox;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
602
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
603 // Used to stored the rendered text. It's a 3D matrix with size MxNx4
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
604 // where M and N are the width and height of the bounding box.
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
605 uint8NDArray m_pixels;
22331
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diff changeset
606
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
607 // Used to store the bounding box of each line. This is used to layout
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
608 // multiline text properly.
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
609 std::list<Matrix> m_line_bbox;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
610
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
611 // The current horizontal alignment. This is used to align multi-line text.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
612 int m_halign;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
613
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
614 // The X offset for the next glyph.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
615 int m_xoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
616
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
617 // The Y offset of the baseline for the current line.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
618 int m_line_yoffset;
22331
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diff changeset
619
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
620 // The Y offset of the baseline for the next glyph. The offset is relative
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
621 // to line_yoffset. The total Y offset is computed with:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
622 // line_yoffset + yoffset.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
623 int m_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
624
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
625 // The current mode of the rendering process (box computing or rendering).
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
626 int m_mode;
22331
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diff changeset
627
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
628 // The base color of the rendered text.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
629 uint8NDArray m_color;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
630
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
631 // A list of parsed strings to be used for printing.
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
632 bool m_do_strlist;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
633 std::list<text_renderer::string> m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
634
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
635 // The X offset of the baseline for the current line.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
636 int m_line_xoffset;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
637
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
638 // Min and max y coordinates of all glyphs in a line.
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
639 FT_Pos m_ymin;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
640 FT_Pos m_ymax;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
641
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
642 // Difference between the advance and the actual extent of the latest glyph
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
643 FT_Pos m_deltax;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
644
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
645 // Used for computing the distance between lines.
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
646 double m_max_fontsize;
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
647
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
648 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
649 bool m_antialias;
22331
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John W. Eaton <jwe@octave.org>
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diff changeset
650
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
651 };
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
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diff changeset
652
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
653 void
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
654 ft_text_renderer::set_font (const std::string& name,
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
655 const std::string& weight,
22331
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diff changeset
656 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
657 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
658 // FIXME: take "fontunits" into account
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
659 m_font = ft_font (name, weight, angle, size, nullptr);
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
660 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
661
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
662 octave_map
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
663 ft_text_renderer::get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
664 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
665 return ft_manager::get_system_fonts ();
22331
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diff changeset
666 }
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parents: 22326
diff changeset
667
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
668 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
669 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
670 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
671 switch (m_mode)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
672 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
673 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
674 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
675 // Create a new bbox entry based on the current font.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
676
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
677 FT_Face face = m_font.get_face ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
678
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
679 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
680 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
681 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
682
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
683 m_line_bbox.push_back (bb);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
684
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
685 m_xoffset = m_yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
686 m_ymin = m_ymax = m_deltax = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
687 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
688 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
689 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
690
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
691 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
692 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
693 // Move to the next line bbox, adjust xoffset based on alignment
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
694 // and yoffset based on the old and new line bbox.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
695
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
696 Matrix old_bbox = m_line_bbox.front ();
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
697 m_line_bbox.pop_front ();
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
698 Matrix new_bbox = m_line_bbox.front ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
699
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
700 m_xoffset = m_line_xoffset = compute_line_xoffset (new_bbox);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
701 m_line_yoffset -= (-old_bbox(1) + math::round (0.4 * m_max_fontsize)
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
702 + (new_bbox(3) + new_bbox(1)));
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
703 m_yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
704 m_ymin = m_ymax = m_deltax = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
705 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
706 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
707 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
708 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
709
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
710 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
711 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
712 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
713 if (! m_bbox.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
714 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
715 switch (m_halign)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
716 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
717 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
718 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
719 case 1:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
720 return (m_bbox(2) - lb(2)) / 2;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
721 case 2:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
722 return (m_bbox(2) - lb(2));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
723 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
724 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
725
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
726 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
727 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
728
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
729 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
730 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
731 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
732 // Stack the various line bbox together and compute the final
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
733 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
734
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
735 m_bbox = Matrix ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
736
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
737 switch (m_line_bbox.size ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
738 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
739 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
740 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
741
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
742 case 1:
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
743 m_bbox = m_line_bbox.front ().extract (0, 0, 0, 3);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
744 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
745
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
746 default:
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
747 for (const auto& lbox : m_line_bbox)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
748 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
749 if (m_bbox.isempty ())
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
750 m_bbox = lbox.extract (0, 0, 0, 3);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
751 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
752 {
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
753 double delta = math::round (0.4 * m_max_fontsize) + lbox(3);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
754 m_bbox(1) -= delta;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
755 m_bbox(3) += delta;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
756 m_bbox(2) = math::max (m_bbox(2), lbox(2));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
757 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
758 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
759 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
760 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
761 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
762
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
763 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
764 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
765 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
766 // Called after a font change, when in MODE_BBOX mode, to update the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
767 // current line bbox with the new font metrics. This also includes the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
768 // current yoffset, that is the offset of the current glyph's baseline
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
769 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
770
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
771 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
772 {
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
773 Matrix& bb = m_line_bbox.back ();
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
774 bb(1) = m_ymin;
26330
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
775 // Add one pixel to the bbox height to avoid occasional text clipping.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
776 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
777 bb(3) = (m_ymax + 1) - m_ymin;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
778 if (m_deltax > 0)
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
779 bb(2) += m_deltax;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
780 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
781 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
782
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
783 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
784 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
785 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
786 m_mode = m;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
787
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
788 switch (m_mode)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
789 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
790 case MODE_BBOX:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
791 m_xoffset = m_line_yoffset = m_yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
792 m_max_fontsize = 0.0;
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
793 m_bbox = Matrix (1, 4, 0.0);
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
794 m_line_bbox.clear ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
795 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
796 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
797
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
798 case MODE_RENDER:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
799 if (m_bbox.numel () != 4)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
800 {
22515
77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents: 22407
diff changeset
801 ::error ("ft_text_renderer: invalid bounding box, cannot render");
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
802
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
803 m_xoffset = m_line_yoffset = m_yoffset = 0;
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
804 m_pixels = uint8NDArray ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
805 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
806 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
807 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
808 dim_vector d (4, octave_idx_type (m_bbox(2)),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
809 octave_idx_type (m_bbox(3)));
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
810 m_pixels = uint8NDArray (d, static_cast<uint8_t> (0));
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
811 m_xoffset = compute_line_xoffset (m_line_bbox.front ());
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
812 m_line_yoffset = -m_bbox(1);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
813 m_yoffset = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
814 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
815 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
816
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
817 default:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
818 error ("ft_text_renderer: invalid mode '%d'", m_mode);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
819 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
820 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
821 }
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
822
30390
a61e1a0f6024 maint: style check C++ files in libinterp/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 30119
diff changeset
823 bool is_opaque (const FT_GlyphSlot& glyph, const int x, const int y)
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
824 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
825 // Borrowed from https://stackoverflow.com/questions/14800827/
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
826 // indexing-pixels-in-a-monochrome-freetype-glyph-buffer
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
827 int pitch = std::abs (glyph->bitmap.pitch);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
828 unsigned char *row = &glyph->bitmap.buffer[pitch * y];
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
829 char cvalue = row[x >> 3];
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
830
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
831 return ((cvalue & (128 >> (x & 7))) != 0);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
832 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
833
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
834 FT_UInt
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
835 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous,
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
836 std::string& sub_name)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
837 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
838 FT_Face face = m_font.get_face ();
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
839
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
840 sub_name = face->family_name;
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
841
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
842 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
843
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
844 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
845 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
846 glyph_index = FT_Get_Char_Index (face, code);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
847
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
848 if (code != '\n' && code != '\t'
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
849 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
850 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
851 {
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
852 #if defined (HAVE_FONTCONFIG)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
853 // Try to substitue font
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
854 FT_Face sub_face = ft_manager::get_font (m_font.get_name (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
855 m_font.get_weight (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
856 m_font.get_angle (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
857 m_font.get_size (),
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
858 code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
859
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
860 if (sub_face)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
861 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
862 FT_Set_Char_Size (sub_face, 0, m_font.get_size ()*64, 0, 0);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
863
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
864 glyph_index = FT_Get_Char_Index (sub_face, code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
865
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
866 if (glyph_index
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
867 && (FT_Load_Glyph (sub_face, glyph_index, FT_LOAD_DEFAULT)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
868 == 0))
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
869 {
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
870 static std::string prev_sub_name;
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
871
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
872 if (prev_sub_name.empty ()
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
873 || prev_sub_name != std::string (sub_face->family_name))
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
874 {
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
875 prev_sub_name = sub_face->family_name;
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
876 warning_with_id ("Octave:substituted-glyph",
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
877 "text_renderer: substituting font to '%s' for some characters",
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
878 sub_face->family_name);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
879 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
880
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
881 ft_font saved_font = m_font;
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
882
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
883 m_font = ft_font (m_font.get_name (), m_font.get_weight (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
884 m_font.get_angle (), m_font.get_size (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
885 sub_face);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
886
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
887 process_character (code, previous, sub_name);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
888
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
889 m_font = saved_font;
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
890 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
891 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
892 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
893 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
894 warn_missing_glyph (code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
895 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
896 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
897 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
898 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
899 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
900 warn_missing_glyph (code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
901 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
902 #else
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
903 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
904 warn_missing_glyph (code);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
905 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
906 }
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
907 else if ((code == '\n') || (code == '\t'))
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
908 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
909 glyph_index = FT_Get_Char_Index (face, ' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
910 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
911 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
912 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
913 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
914 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
915 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
916 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
917 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
918 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
919 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
920 // Advance to next multiple of 4 times the width of the "space"
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
921 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
922 int x_tab = 4 * (face->glyph->advance.x >> 6);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
923 m_xoffset = (1 + std::floor (1. * m_xoffset / x_tab)) * x_tab;
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
924 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
925 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
926 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
927 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
928 switch (m_mode)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
929 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
930 case MODE_RENDER:
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
931 if (FT_Render_Glyph (face->glyph, (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
932 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
933 : FT_RENDER_MODE_MONO)))
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
934 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
935 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
936 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
937 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
938 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
939 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
940 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
941 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
942
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
943 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
944 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
945 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
946
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
947 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
948 FT_KERNING_DEFAULT, &delta);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
949
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
950 m_xoffset += (delta.x >> 6);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
951 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
952
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
953 x0 = m_xoffset + face->glyph->bitmap_left;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
954 y0 = m_line_yoffset + m_yoffset
30390
a61e1a0f6024 maint: style check C++ files in libinterp/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 30119
diff changeset
955 + (face->glyph->bitmap_top - 1);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
956
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
957 // 'w' seems to have a negative -1
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
958 // face->glyph->bitmap_left, this is so we don't index out
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
959 // of bound, and assumes we've allocated the right amount of
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
960 // horizontal space in the bbox.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
961 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
962 x0 = 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
963
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
964 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
965 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
966 {
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
967 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
968 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
969 ? bitmap.buffer[r*bitmap.width+c]
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
970 : (is_opaque (face->glyph, c, r) ? 255 : 0));
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
971
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
972 if (x0+c < 0 || x0+c >= m_pixels.dim2 ()
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
973 || y0-r < 0 || y0-r >= m_pixels.dim3 ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
974 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
975 // ::warning ("ft_text_renderer: x %d, y %d",
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
976 // x0+c, y0-r);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
977 }
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
978 else if (m_pixels(3, x0+c, y0-r).value () == 0)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
979 {
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
980 m_pixels(0, x0+c, y0-r) = m_color(0);
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
981 m_pixels(1, x0+c, y0-r) = m_color(1);
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
982 m_pixels(2, x0+c, y0-r) = m_color(2);
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
983 m_pixels(3, x0+c, y0-r) = pix;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
984 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
985 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
986
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
987 m_xoffset += (face->glyph->advance.x >> 6);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
988 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
989 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
990
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
991 case MODE_BBOX:
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
992 Matrix& bb = m_line_bbox.back ();
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
993
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
994 // If we have a previous glyph, use kerning information. This
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
995 // usually means moving a bit backward before adding the next
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
996 // glyph. That is, "delta.x" is usually < 0.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
997 if (previous)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
998 {
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
999 FT_Vector delta;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1000
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1001 FT_Get_Kerning (face, previous, glyph_index,
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1002 FT_KERNING_DEFAULT, &delta);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1003
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1004 m_xoffset += (delta.x >> 6);
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1005 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1006
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1007 // Extend current X offset box by the width of the current
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1008 // glyph. Then extend the line bounding box if necessary.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1009
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1010 m_xoffset += (face->glyph->advance.x >> 6);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1011 bb(2) = math::max (bb(2), m_xoffset);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1012
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1013 // Store the actual bbox vertical coordinates of this character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1014 FT_Glyph glyph;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1015 if (FT_Get_Glyph (face->glyph, &glyph))
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1016 warn_glyph_render (code);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1017 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1018 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1019 FT_BBox glyph_bbox;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1020 FT_Glyph_Get_CBox (glyph, FT_GLYPH_BBOX_UNSCALED,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1021 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1022 m_deltax = (glyph_bbox.xMax - face->glyph->advance.x) >> 6;
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1023 m_ymin = math::min ((glyph_bbox.yMin >> 6) + m_yoffset,
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1024 m_ymin);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1025 m_ymax = math::max ((glyph_bbox.yMax >> 6) + m_yoffset,
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1026 m_ymax);
26478
6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26376
diff changeset
1027 FT_Done_Glyph (glyph);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1028 update_line_bbox ();
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1029 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1030 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1031 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1032 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1033 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1034
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1035 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1036 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1037
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1038 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1039 ft_text_renderer::text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1040 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1041 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1042 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1043 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1044 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1045 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1046
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1047 // First run text_to_pixels which will also build the string list
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1048
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1049 m_strlist = std::list<text_renderer::string> ();
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1050
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
1051 unwind_protect_var<bool> restore_var1 (m_do_strlist);
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
1052 unwind_protect_var<std::list<text_renderer::string>>
28823
26cfccfee9a0 Replace unwind_protect with more efficient constructs (bug #59192).
Rik <rik@octave.org>
parents: 28483
diff changeset
1053 restore_var2 (m_strlist);
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
1054
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1055 m_do_strlist = true;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1056
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1057 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1058
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1059 lst = m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1060 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1061
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1062 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1063 ft_text_renderer::visit (text_element_string& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1064 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1065 if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1066 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1067 m_max_fontsize = std::max (m_max_fontsize, m_font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1068 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1069
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1070 std::string str = e.string_value ();
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1071 const uint8_t *c = reinterpret_cast<const uint8_t *> (str.c_str ());
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1072 uint32_t u32_c;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1073
29654
d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471)
John W. Eaton <jwe@octave.org>
parents: 29358
diff changeset
1074 std::size_t n = str.size ();
d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471)
John W. Eaton <jwe@octave.org>
parents: 29358
diff changeset
1075 std::size_t icurr = 0;
d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471)
John W. Eaton <jwe@octave.org>
parents: 29358
diff changeset
1076 std::size_t ibegin = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1077
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1078 // Initialize a new string
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1079 text_renderer::string fs (str, m_font, m_xoffset, m_yoffset);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1080
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1081 std::string fname = m_font.get_face ()->family_name;
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1082
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1083 if (fname.find (" ") != std::string::npos)
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1084 fname = "'" + fname + "'";
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1085
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1086 fs.set_family (fname);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1087
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1088 std::vector<double> xdata;
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1089 std::string sub_name;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1090
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1091 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1092 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1093 // Retrieve the length and the u32 representation of the current
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1094 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1095 int mblen = octave_u8_strmbtouc_wrapper (&u32_c, c + icurr);
27142
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1096 if (mblen < 1)
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1097 {
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1098 // This is not an UTF-8 character, use a replacement character
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1099 mblen = 1;
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1100 u32_c = 0xFFFD;
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1101 }
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
1102
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1103 n -= mblen;
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1104
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1105 if (m_do_strlist && m_mode == MODE_RENDER)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1106 {
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1107 if (u32_c == 10)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1108 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1109 // Finish previous string in m_strlist before processing
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1110 // the newline character
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1111 fs.set_y (m_line_yoffset + m_yoffset);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1112 fs.set_color (m_color);
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1113
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1114 std::string s = str.substr (ibegin, icurr - ibegin);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1115 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1116 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1117 fs.set_string (s);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1118 fs.set_y (m_line_yoffset + m_yoffset);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1119 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1120 fs.set_family (fname);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1121 m_strlist.push_back (fs);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1122 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1123 }
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1124 else
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1125 xdata.push_back (m_xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1126 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1127
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1128 glyph_index = process_character (u32_c, previous, sub_name);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1129
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1130 if (m_do_strlist && m_mode == MODE_RENDER && ! sub_name.empty ())
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1131 {
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1132 // Add substitution font to the family name stack
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1133 std::string tmp_family = fs.get_family ();
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1134
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1135 if (tmp_family.find (sub_name) == std::string::npos)
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1136 {
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1137 if (sub_name.find (" ") != std::string::npos)
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1138 sub_name = "'" + sub_name + "'";
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1139
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1140 fs.set_family (tmp_family + ", " + sub_name);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1141 }
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1142 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1143
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1144 if (u32_c == 10)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1145 {
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1146 previous = 0;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1147
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1148 if (m_do_strlist && m_mode == MODE_RENDER)
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1149 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1150 // Start a new string in m_strlist
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1151 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1152 xdata.clear ();
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1153 fs = text_renderer::string (str.substr (ibegin), m_font,
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1154 m_line_xoffset, m_yoffset);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1155 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1156 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1157 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1158 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1159
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1160 icurr += mblen;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1161 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1162
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1163 if (m_do_strlist && m_mode == MODE_RENDER
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1164 && ! fs.get_string ().empty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1165 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1166 fs.set_y (m_line_yoffset + m_yoffset);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1167 fs.set_color (m_color);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1168 fs.set_xdata (xdata);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1169 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1170 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1171 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1172 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1173
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1174 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1175 ft_text_renderer::visit (text_element_list& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1176 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1177 // Save and restore (after processing the list) the current font and color.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1178
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1179 ft_font saved_font (m_font);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1180 uint8NDArray saved_color (m_color);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1181
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1182 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1183
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1184 m_font = saved_font;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1185 m_color = saved_color;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1186 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1187
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1188 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1189 ft_text_renderer::visit (text_element_subscript& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1190 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1191 ft_font saved_font (m_font);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1192 int saved_line_yoffset = m_line_yoffset;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1193 int saved_yoffset = m_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1194
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1195 double sz = m_font.get_size ();
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1196
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1197 // Reducing font size by 70% produces decent results.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1198 set_font (m_font.get_name (), m_font.get_weight (), m_font.get_angle (),
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1199 std::max (5.0, sz * 0.7));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1200
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1201 if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1202 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1203 // Shifting the baseline by 15% of the font size gives decent results.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1204 m_yoffset -= std::ceil (sz * 0.15);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1205
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1206 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1207 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1208 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1209
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1210 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1211
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1212 m_font = saved_font;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1213 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1214 // cannot be restored, because the saved value is not relevant anymore.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1215 if (m_line_yoffset == saved_line_yoffset)
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1216 m_yoffset = saved_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1217 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1218
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1219 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1220 ft_text_renderer::visit (text_element_superscript& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1221 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1222 ft_font saved_font (m_font);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1223 int saved_line_yoffset = m_line_yoffset;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1224 int saved_yoffset = m_yoffset;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1225
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1226 double sz = m_font.get_size ();
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1227
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1228 // Reducing font size by 70% produces decent results.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1229 set_font (m_font.get_name (), m_font.get_weight (), m_font.get_angle (),
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1230 std::max (5.0, sz * 0.7));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1231
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1232 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1233 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1234 // Shifting the baseline by 40% of the font size gives decent results.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1235 m_yoffset += std::ceil (sz * 0.4);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1236
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1237 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1238 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1239 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1240
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1241 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1242
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1243 m_font = saved_font;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1244 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1245 // cannot be restored, because the saved value is not relevant anymore.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1246 if (m_line_yoffset == saved_line_yoffset)
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1247 m_yoffset = saved_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1248 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1249
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1250 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1251 ft_text_renderer::visit (text_element_color& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1252 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1253 if (m_mode == MODE_RENDER)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1254 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1255 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1256
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1257 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1258 ft_text_renderer::visit (text_element_fontsize& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1259 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1260 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1261
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1262 // FIXME: Matlab documentation says that the font size is expressed
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1263 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1264
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1265 set_font (m_font.get_name (), m_font.get_weight (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1266 m_font.get_angle (), sz);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1267
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1268 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1269 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1270 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1271
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1272 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1273 ft_text_renderer::visit (text_element_fontname& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1274 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1275 set_font (e.get_fontname (), m_font.get_weight (), m_font.get_angle (),
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1276 m_font.get_size ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1277
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1278 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1279 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1280 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1281
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1282 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1283 ft_text_renderer::visit (text_element_fontstyle& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1284 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1285 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1286 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1287 case text_element_fontstyle::normal:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1288 set_font (m_font.get_name (), "normal", "normal", m_font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1289 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1290
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1291 case text_element_fontstyle::bold:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1292 set_font (m_font.get_name (), "bold", "normal", m_font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1293 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1294
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1295 case text_element_fontstyle::italic:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1296 set_font (m_font.get_name (), "normal", "italic", m_font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1297 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1298
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1299 case text_element_fontstyle::oblique:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1300 set_font (m_font.get_name (), "normal", "oblique", m_font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1301 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1302 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1303
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1304 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1305 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1306 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1307
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1308 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1309 ft_text_renderer::visit (text_element_symbol& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1310 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1311 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1312
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1313 std::vector<double> xdata (1, m_xoffset);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1314 text_renderer::string fs ("-", m_font, m_xoffset, m_yoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1315
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1316 if (code != text_element_symbol::invalid_code && m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1317 {
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1318 std::string sub_name;
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1319
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1320 process_character (code, 0, sub_name);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1321
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1322 if (m_do_strlist && m_mode == MODE_RENDER)
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1323 {
29683
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1324 if (! sub_name.empty ())
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1325 {
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1326 // Add substitution font to the family name
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1327 std::string tmp_family = fs.get_family ();
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1328
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1329 if (tmp_family.find (sub_name) == std::string::npos)
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1330 {
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1331 if (sub_name.find (" ") != std::string::npos)
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1332 sub_name = "'" + sub_name + "'";
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1333
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1334 fs.set_family (tmp_family + ", " + sub_name);
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1335 }
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1336 }
5ffe7159f94b Add substitution font to SVG font stack if necessary
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29679
diff changeset
1337
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1338 fs.set_code (code);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1339 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1340 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1341 }
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1342 else if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1343 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1344
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1345 if (m_do_strlist && m_mode == MODE_RENDER && fs.get_code ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1346 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1347 fs.set_y (m_line_yoffset + m_yoffset);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1348 fs.set_color (m_color);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1349 fs.set_family (m_font.get_face ()->family_name);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1350 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1351 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1352 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1353
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1354 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1355 ft_text_renderer::visit (text_element_combined& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1356 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1357 int saved_xoffset = m_xoffset;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1358 int max_xoffset = m_xoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1359
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
1360 for (auto *txt_elt : e)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1361 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1362 m_xoffset = saved_xoffset;
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
1363 txt_elt->accept (*this);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1364 max_xoffset = math::max (m_xoffset, max_xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1365 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1366
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1367 m_xoffset = max_xoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1368 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1369
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1370 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1371 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1372 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1373 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1374 set_color (Matrix (1, 3, 0.0));
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1375 m_strlist = std::list<text_renderer::string> ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1376 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1377
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1378 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1379 ft_text_renderer::set_color (const Matrix& c)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1380 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1381 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1382 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1383 m_color(0) = static_cast<uint8_t> (c(0)*255);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1384 m_color(1) = static_cast<uint8_t> (c(1)*255);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1385 m_color(2) = static_cast<uint8_t> (c(2)*255);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1386 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1387 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1388 ::warning ("ft_text_renderer::set_color: invalid color");
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1389 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1390
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1391 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1392 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1393 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1394 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1395 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1396 compute_bbox ();
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1397 box = m_bbox;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1398
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1399 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1400
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
1401 if (m_pixels.numel () > 0)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1402 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1403 elt->accept (*this);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1404
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
1405 rotate_pixels (m_pixels, rotation);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1406 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1407
30119
3161a1ee0045 maint: use "m_" prefix for member variables in file ft-text-renderer.cc.
Rik <rik@octave.org>
parents: 30041
diff changeset
1408 return m_pixels;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1409 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1410
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1411 // Note:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1412 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1413 // y-extent is overly large because it is measured from baseline-to-baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1414 // Calling routines, such as ylabel, may need to account for this mismatch.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1415
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1416 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1417 ft_text_renderer::get_extent (text_element *elt, double rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1418 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1419 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1420 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1421 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1422
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1423 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1424
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1425 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1426 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1427 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1428 case ROTATION_180:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1429 extent(0) = m_bbox(2);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1430 extent(1) = m_bbox(3);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1431 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1432
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1433 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1434 case ROTATION_270:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1435 extent(0) = m_bbox(3);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1436 extent(1) = m_bbox(2);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1437 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1438
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1439 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1440 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1441
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1442 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1443 ft_text_renderer::get_extent (const std::string& txt, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1444 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1445 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1446 text_element *elt = text_parser::parse (txt, interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1447 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1448 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1449
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1450 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1451 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1452
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1453 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1454 ft_text_renderer::text_to_pixels (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1455 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1456 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1457 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1458 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1459 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1460 int rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1461
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1462 m_halign = _halign;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1463
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1464 text_element *elt = text_parser::parse (txt, interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1465 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1466 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1467
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
1468 if (pxls.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1469 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1470
29470
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1471 // Move X0 and Y0 depending on alignments and eventually swap all values
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1472 // for text rotated 90° 180° or 270°
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1473 fix_bbox_anchor (box, m_halign, valign, rot_mode, handle_rotation);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1474 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1475
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1476 ft_text_renderer::ft_font::ft_font (const ft_font& ft)
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1477 : text_renderer::font (ft), m_face (nullptr)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1478 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1479 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1480 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1481
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1482 if (ft_face && FT_Reference_Face (ft_face) == 0)
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1483 m_face = ft_face;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1484 #endif
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1485 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1486
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1487 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1488 ft_text_renderer::ft_font::operator = (const ft_font& ft)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1489 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1490 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1491 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1492 text_renderer::font::operator = (ft);
17271
cb7233cfbf43 Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17270
diff changeset
1493
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1494 if (m_face)
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1495 {
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1496 FT_Done_Face (m_face);
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1497 m_face = nullptr;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1498 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1499
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1500 #if defined (HAVE_FT_REFERENCE_FACE)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1501 FT_Face ft_face = ft.get_face ();
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1502
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1503 if (ft_face && FT_Reference_Face (ft_face) == 0)
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1504 m_face = ft_face;
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1505 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1506 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1507
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1508 return *this;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1509 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1510
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1511 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1512 ft_text_renderer::ft_font::get_face (void) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1513 {
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1514 if (! m_face && ! m_name.empty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1515 {
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1516 m_face = ft_manager::get_font (m_name, m_weight, m_angle, m_size);
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1517
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1518 if (m_face)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1519 {
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1520 if (FT_Set_Char_Size (m_face, 0, m_size*64, 0, 0))
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1521 ::warning ("ft_text_renderer: unable to set font size to %g", m_size);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1522 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1523 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1524 ::warning ("ft_text_renderer: unable to load appropriate font");
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1525 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1526
30041
f148aff802b6 maint: use "m_" prefix for member variables of text_renderer objects.
Rik <rik@octave.org>
parents: 29683
diff changeset
1527 return m_face;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1528 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1529 }
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1530
20945
9d9270e2f98f eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents: 20715
diff changeset
1531 #endif
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1532
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1533 namespace octave
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1534 {
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1535 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1536 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1537 {
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1538 #if defined (HAVE_FREETYPE)
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1539 return new ft_text_renderer ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1540 #else
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1541 return 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1542 #endif
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1543 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1544 }