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annotate libinterp/corefcn/ft-text-renderer.cc @ 29679:7ad7991e946a

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ft-text-renderer.cc: Use m_ prefix for class data members * ft-text-renderer.cc(ft_manager, ft_text_renderer): Add m_ prefix to data member variable names.
author Pantxo Diribarne <pantxo.diribarne@gmail.com>
date Sun, 16 May 2021 14:38:11 +0200
parents 7511182e5e9b
children 5ffe7159f94b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2009-2021 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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140 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
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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
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John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
143 // FcFini ();
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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
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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/.
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parents: 22331
diff changeset
151 bool retval = true;
9403
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parents:
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152
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Rik <rik@octave.org>
parents: 22331
diff changeset
153 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
154 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
155 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:
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158
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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:
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161
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
162 static void cleanup_instance (void) { delete instance; instance = nullptr; }
13992
e1f76bfe0452 apply singleton_cleanup to a few more classes
John W. Eaton <jwe@octave.org>
parents: 13730
diff changeset
163
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
164 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
165 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
166 FT_ULong c = 0)
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
167 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
168 return (instance_ok ()
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
169 ? 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
170 : nullptr);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
171 }
9403
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parents:
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172
27623
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
173 static octave_map get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
174 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
175 return (instance_ok ()
698c8b08fe8c New function uisetfont (bug #57130).
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parents: 27150
diff changeset
176 ? instance->do_get_system_fonts ()
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
177 : octave_map ());
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
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178 }
698c8b08fe8c New function uisetfont (bug #57130).
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parents: 27150
diff changeset
179
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Rik <rik@octave.org>
parents: 22331
diff changeset
180 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
181 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
182 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
183 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
184 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
185
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Rik <rik@octave.org>
parents: 22331
diff changeset
186 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
187
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
188 static ft_manager *instance;
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
189
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parents: 22331
diff changeset
190 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
191 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
192
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
193 // Cache the fonts loaded by FreeType. This cache only contains
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
194 // weak references to the fonts, strong references are only present
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
195 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
196 ft_cache cache;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
197
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
198 static octave_map do_get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
199 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
200 static octave_map font_map;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
201
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
202 if (font_map.isempty ())
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
203 {
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
204 #if defined (HAVE_FONTCONFIG)
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
205 FcConfig *config = FcConfigGetCurrent();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
206 FcPattern *pat = FcPatternCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
207 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
208 FC_CHARSET, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
209 FcFontSet *fs = FcFontList (config, pat, os);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
210
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
211 if (fs->nfont > 0)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
212 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
213 // 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
214 FcCharSet *minimal_charset = FcCharSetCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
215 for (int i = 32; i < 127; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
216 FcCharSetAddChar (minimal_charset, static_cast<FcChar32> (i));
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 string_vector fields (4);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
219 fields(0) = "family";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
220 fields(1) = "angle";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
221 fields(2) = "weight";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
222 fields(3) = "suitable";
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 dim_vector dv (1, fs->nfont);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
225 Cell families (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
226 Cell angles (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
227 Cell weights (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
228 Cell suitable (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
229
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
230 unsigned char *family;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
231 int val;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
232 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
233 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
234 FcPattern *font = fs->fonts[i];
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
235 if (FcPatternGetString (font, FC_FAMILY, 0, &family)
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 families(i) = std::string (reinterpret_cast<char*> (family));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
238 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
239 families(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
240
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
241 if (FcPatternGetInteger (font, FC_SLANT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
242 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
243 angles(i) = (val == FC_SLANT_ITALIC
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
244 || val == FC_SLANT_OBLIQUE)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
245 ? "italic" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
246 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
247 angles(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
248
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
249 if (FcPatternGetInteger (font, FC_WEIGHT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
250 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
251 weights(i) = (val == FC_WEIGHT_BOLD
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
252 || val == FC_WEIGHT_DEMIBOLD)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
253 ? "bold" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
254 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
255 weights(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
256
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
257 FcCharSet *cset;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
258 if (FcPatternGetCharSet (font, FC_CHARSET, 0, &cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
259 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
260 suitable(i) = (FcCharSetIsSubset (minimal_charset, cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
261 ? true : false);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
262 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
263 suitable(i) = false;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
264 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
265
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
266 font_map = octave_map (dv, fields);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
267
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
268 font_map.assign ("family", families);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
269 font_map.assign ("angle", angles);
698c8b08fe8c New function uisetfont (bug #57130).
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270 font_map.assign ("weight", weights);
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271 font_map.assign ("suitable", suitable);
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272
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273 if (fs)
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274 FcFontSetDestroy (fs);
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275 }
28483
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diff changeset
276 #endif
27623
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277 }
698c8b08fe8c New function uisetfont (bug #57130).
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278
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279 return font_map;
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280 }
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281
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282 FT_Face do_get_font (const std::string& name, const std::string& weight,
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283 const std::string& angle, double size,
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284 FT_ULong search_code_point)
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285 {
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286 FT_Face retval = nullptr;
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287
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288 #if defined (HAVE_FT_REFERENCE_FACE)
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289 // Look first into the font cache, then use fontconfig. If the font
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290 // is present in the cache, simply add a reference and return it.
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291
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292 ft_key key (name + ':' + weight + ':' + angle + ':'
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293 + std::to_string (search_code_point), size);
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294 ft_cache::const_iterator it = cache.find (key);
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295
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296 if (it != cache.end ())
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297 {
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298 FT_Reference_Face (it->second);
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299 return it->second;
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300 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
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301 #endif
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302
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303 static std::string fonts_dir;
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304
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305 if (fonts_dir.empty ())
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diff changeset
306 {
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diff changeset
307 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR");
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diff changeset
308
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diff changeset
309 if (fonts_dir.empty ())
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Mike Miller <mtmiller@octave.org>
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diff changeset
310 #if defined (SYSTEM_FREEFONT_DIR)
25460
627d6bde9b8d solve installation info initialization problem differently
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diff changeset
311 fonts_dir = SYSTEM_FREEFONT_DIR;
24900
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diff changeset
312 #else
25460
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diff changeset
313 fonts_dir = config::oct_fonts_dir ();
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00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348)
Mike Miller <mtmiller@octave.org>
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diff changeset
314 #endif
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315 }
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diff changeset
316
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diff changeset
317
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diff changeset
318 // Default font file
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319 std::string file;
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320
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diff changeset
321 if (! fonts_dir.empty ())
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diff changeset
322 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
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diff changeset
323 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans";
24126
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324
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diff changeset
325 if (weight == "bold")
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326 file += "Bold";
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diff changeset
327
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diff changeset
328 if (angle == "italic" || angle == "oblique")
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329 file += "Oblique";
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diff changeset
330
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diff changeset
331 file += ".otf";
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diff changeset
332 }
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diff changeset
333
14003
1555c5a177c9 better fix for fontconfig segfault
John W. Eaton <jwe@octave.org>
parents: 13999
diff changeset
334 #if defined (HAVE_FONTCONFIG)
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
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diff changeset
335 if ((search_code_point != 0 || name != "*") && m_fontconfig_initialized)
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diff changeset
336 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
337 int fc_weight, fc_angle;
9403
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diff changeset
338
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diff changeset
339 if (weight == "bold")
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diff changeset
340 fc_weight = FC_WEIGHT_BOLD;
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diff changeset
341 else
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diff changeset
342 fc_weight = FC_WEIGHT_NORMAL;
9403
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diff changeset
343
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diff changeset
344 if (angle == "italic")
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diff changeset
345 fc_angle = FC_SLANT_ITALIC;
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diff changeset
346 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
347 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
348 else
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diff changeset
349 fc_angle = FC_SLANT_ROMAN;
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diff changeset
350
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diff changeset
351 FcPattern *pat = FcPatternCreate ();
9403
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diff changeset
352
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diff changeset
353 FcPatternAddString (pat, FC_FAMILY,
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
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diff changeset
354 (reinterpret_cast<const FcChar8 *>
24126
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diff changeset
355 (name.c_str ())));
9616
2093499ec9f4 avoid crash if default font can't be found
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parents: 9406
diff changeset
356
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diff changeset
357 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
358 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
359 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403
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diff changeset
360
29678
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diff changeset
361 if (search_code_point > 0)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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diff changeset
362 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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diff changeset
363 FcCharSet *minimal_charset = FcCharSetCreate ();
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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parents: 29655
diff changeset
364 FcCharSetAddChar (minimal_charset,
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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diff changeset
365 static_cast<FcChar32> (search_code_point));
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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diff changeset
366 FcPatternAddCharSet (pat, FC_CHARSET, minimal_charset);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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diff changeset
367 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
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diff changeset
368
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
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diff changeset
369 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407
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diff changeset
370 {
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diff changeset
371 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
372 FcPattern *match;
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diff changeset
373
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diff changeset
374 FcDefaultSubstitute (pat);
29678
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diff changeset
375
23795
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Rik <rik@octave.org>
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diff changeset
376 match = FcFontMatch (nullptr, pat, &res);
9833
637fa784d102 Allow more font matches
godfrey@isl.Stanford.EDU
parents: 9619
diff changeset
377
22407
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diff changeset
378 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
379 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
380 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
381 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
382 unsigned char *tmp;
9403
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diff changeset
383
22407
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diff changeset
384 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
385 file = reinterpret_cast<char *> (tmp);
22407
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diff changeset
386 }
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
387 else
24126
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diff changeset
388 ::warning ("could not match any font: %s-%s-%s-%g, using default font",
22407
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diff changeset
389 name.c_str (), weight.c_str (), angle.c_str (),
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
390 size);
9403
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diff changeset
391
22407
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diff changeset
392 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
393 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
394 }
9403
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diff changeset
395
22407
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diff changeset
396 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
397 }
9403
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diff changeset
398 #endif
4af6e29449c1 [mq]: graphics_text_engine
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parents:
diff changeset
399
22407
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diff changeset
400 if (file.empty ())
24126
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diff changeset
401 ::warning ("unable to find default font files");
2390079a8aed Provide default font files and use them (bug #52150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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diff changeset
402 else
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
403 {
29489
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
404 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
405
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
406 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
407 ::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
408 #if defined (HAVE_FT_REFERENCE_FACE)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
409 else
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
410 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
411 // 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
412 // 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
413 // 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
414
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
415 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
416 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
417
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
418 // 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
419 if (FT_Reference_Face (retval) == 0)
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27923
diff changeset
420 cache[key] = retval;
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
421 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
422 #endif
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
423 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
424
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
425 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
426 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
427
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
428 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
429 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
430 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
431 {
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
432 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
433
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
434 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
435 delete pkey;
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
436 face->generic.data = nullptr;
28206
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27923
diff changeset
437 FT_Done_Face (face);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
438 }
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
439 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
440
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
441 private:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
442 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
443 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
444 bool m_fontconfig_initialized;
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
445 };
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
446
23457
21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible.
Rik <rik@octave.org>
parents: 23447
diff changeset
447 ft_manager *ft_manager::instance = nullptr;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
448
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
449 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
450 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
451 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
452 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
453 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
454
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
455 class
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
456 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
457 ft_text_renderer : public base_text_renderer
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
458 {
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
459 public:
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
460
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
461 enum
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
462 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
463 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
464 MODE_RENDER = 1
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
465 };
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
466
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
467 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
468
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
469 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
470 : 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
471 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
472 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
473 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
474 m_max_fontsize (0), m_antialias (true)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
475 { }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
476
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
477 // No copying!
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
478
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
479 ft_text_renderer (const ft_text_renderer&) = delete;
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& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
482
22868
87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors
John W. Eaton <jwe@octave.org>
parents: 22865
diff changeset
483 ~ft_text_renderer (void) = default;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
484
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
485 void visit (text_element_string& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
486
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
487 void visit (text_element_list& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
488
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
489 void visit (text_element_subscript& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
490
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
491 void visit (text_element_superscript& e);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
492
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
493 void visit (text_element_color& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
494
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
495 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
496
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
497 void visit (text_element_fontname& 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.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
499 void visit (text_element_fontstyle& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
500
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
501 void visit (text_element_symbol& 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.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
503 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
504
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
505 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
506
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
507 uint8NDArray get_pixels (void) const { return pixels; }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
508
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
509 Matrix get_boundingbox (void) const { return m_bbox; }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
510
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
511 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
512 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
513
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
514 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
515 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
516 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
517
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
518 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
519
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
520 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
521 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
522
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
523 octave_map get_system_fonts (void);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
524
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
525 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
526
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
527 void set_mode (int m);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
528
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
529 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
530 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
531 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
532 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
533 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
534
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
535 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
536
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
537 // Class to hold information about fonts and a strong
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
538 // reference to the font objects loaded by FreeType.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
539
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
540 class ft_font : public text_renderer::font
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parents: 21200
diff changeset
541 {
22331
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diff changeset
542 public:
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
543
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
544 ft_font (void)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
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diff changeset
545 : text_renderer::font (), face (nullptr) { }
22331
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diff changeset
546
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
547 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
548 const std::string& ang, double sz, FT_Face f = nullptr)
22331
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diff changeset
549 : text_renderer::font (nm, wt, ang, sz), face (f)
b81b08cc4c83 maint: Indent namespaces in more files.
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550 { }
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parents: 22326
diff changeset
551
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diff changeset
552 ft_font (const ft_font& ft);
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67d2965af0b5 revamp text rendering classes
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parents: 21200
diff changeset
553
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diff changeset
554 ~ft_font (void)
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diff changeset
555 {
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
556 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
557 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
558 }
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
559
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
560 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files.
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561
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
562 bool is_valid (void) const { return get_face (); }
b81b08cc4c83 maint: Indent namespaces in more files.
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563
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
564 FT_Face get_face (void) const;
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John W. Eaton <jwe@octave.org>
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diff changeset
565
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
566 private:
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parents: 22326
diff changeset
567
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
568 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
569 };
21209
67d2965af0b5 revamp text rendering classes
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diff changeset
570
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
571 void push_new_line (void);
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
572
b81b08cc4c83 maint: Indent namespaces in more files.
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573 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
574
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
575 void compute_bbox (void);
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
576
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diff changeset
577 int compute_line_xoffset (const Matrix& lb) const;
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John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
578
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diff changeset
579 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0);
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diff changeset
580
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
581 public:
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parents: 22326
diff changeset
582
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
583 void text_to_strlist (const std::string& txt,
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parents: 22326
diff changeset
584 std::list<text_renderer::string>& lst, Matrix& bbox,
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
585 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
586 const caseless_str& interp);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
587
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
588 private:
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
589
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
590 // 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
591 ft_font m_font;
22331
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diff changeset
592
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
593 // Used to stored the bounding box corresponding to the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
594 // 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
595 // 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
596 // 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
597 // 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
598 Matrix m_bbox;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
599
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
600 // Used to stored the rendered text. It's a 3D matrix with size MxNx4
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
601 // where M and N are the width and height of the bounding box.
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
602 uint8NDArray pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
603
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
604 // 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
605 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
606 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
607
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
608 // 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
609 int m_halign;
22331
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diff changeset
610
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
611 // 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
612 int m_xoffset;
22331
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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 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>
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diff changeset
615 int m_line_yoffset;
22331
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diff changeset
616
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
617 // 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>
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diff changeset
618 // to line_yoffset. The total Y offset is computed with:
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
619 // 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
620 int m_yoffset;
22331
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diff changeset
621
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
622 // 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
623 int m_mode;
22331
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diff changeset
624
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
625 // 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>
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diff changeset
626 uint8NDArray m_color;
22331
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diff changeset
627
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
628 // 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
629 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
630 std::list<text_renderer::string> m_strlist;
22331
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diff changeset
631
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
632 // 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
633 int m_line_xoffset;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
634
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
635 // 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
636 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
637 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
638
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
639 // 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
640 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
641
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
642 // 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
643 double m_max_fontsize;
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
644
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
645 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
646 bool m_antialias;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
647
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
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diff changeset
648 };
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
649
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
650 void
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
651 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
652 const std::string& weight,
22331
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John W. Eaton <jwe@octave.org>
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diff changeset
653 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
654 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
655 // 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
656 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
657 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
658
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
659 octave_map
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
660 ft_text_renderer::get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
661 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
662 return ft_manager::get_system_fonts ();
22331
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diff changeset
663 }
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John W. Eaton <jwe@octave.org>
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diff changeset
664
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
665 void
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
666 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
667 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
668 switch (m_mode)
22331
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diff changeset
669 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
670 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
671 {
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
672 // 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
673
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
674 FT_Face face = m_font.get_face ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
675
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
676 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
677 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
678 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
679
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
680 line_bbox.push_back (bb);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
681
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
682 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
683 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
684 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
685 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
686 break;
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 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
689 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
690 // 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
691 // 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
692
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
693 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
694 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
695 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
696
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
697 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
698 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
699 + (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
700 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
701 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
702 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
703 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
704 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
705 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
706
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
707 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
708 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
709 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
710 if (! m_bbox.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
711 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
712 switch (m_halign)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
713 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
714 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
715 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
716 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
717 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
718 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
719 return (m_bbox(2) - lb(2));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
720 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
721 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
722
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
723 return 0;
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
727 ft_text_renderer::compute_bbox (void)
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 // 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
730 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
731
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
732 m_bbox = Matrix ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
733
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
734 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
735 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
736 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
737 break;
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 1:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
740 m_bbox = 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
741 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
742
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
743 default:
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
744 for (const auto& lbox : line_bbox)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
745 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
746 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
747 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
748 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
749 {
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
750 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
751 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
752 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
753 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
754 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
755 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
756 break;
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 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
759
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
760 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
761 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
762 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
763 // 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
764 // 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
765 // 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
766 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
767
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
768 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
769 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
770 Matrix& bb = 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
771 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
772 // 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
773 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
774 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
775 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
776 bb(2) += m_deltax;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
777 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
778 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
779
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
780 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
781 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
782 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
783 m_mode = m;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
784
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
785 switch (m_mode)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
786 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
787 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
788 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
789 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
790 m_bbox = Matrix (1, 4, 0.0);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
791 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
792 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
793 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
794
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
795 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
796 if (m_bbox.numel () != 4)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
797 {
22515
77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents: 22407
diff changeset
798 ::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
799
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
800 m_xoffset = m_line_yoffset = m_yoffset = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
801 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
802 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
803 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
804 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
805 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
806 octave_idx_type (m_bbox(3)));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
807 pixels = uint8NDArray (d, static_cast<uint8_t> (0));
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
808 m_xoffset = compute_line_xoffset (line_bbox.front ());
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
809 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
810 m_yoffset = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
811 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
812 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
813
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
814 default:
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
815 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
816 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
817 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
818 }
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
819 bool is_opaque (const FT_GlyphSlot &glyph, const int x, const int y)
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
820 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
821 // 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
822 // 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
823 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
824 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
825 char cvalue = row[x >> 3];
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
826
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
827 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
828 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
829
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
830 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
831 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
832 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
833 FT_Face face = m_font.get_face ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
834 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
835
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
836 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
837 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
838 glyph_index = FT_Get_Char_Index (face, code);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
839
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
840 if (code != '\n' && code != '\t'
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
841 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
842 || 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
843 {
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
844 #if defined (HAVE_FONTCONFIG)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
845 // 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
846 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
847 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
848 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
849 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
850 code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
851
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
852 if (sub_face)
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
853 {
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_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
855
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
856 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
857
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
858 if (glyph_index
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
859 && (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
860 == 0))
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
861 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
862 static std::string sub_name;
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 if (sub_name.empty ()
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
865 || sub_name != std::string (sub_face->family_name))
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
866 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
867 sub_name = sub_face->family_name;
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
868 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
869 "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
870 sub_face->family_name);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
871 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
872
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
873 // FIXME: With this approach the substituted font is
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
874 // not stored in the str_list and thus won't appear in
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
875 // svg output.
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
876 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
877
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
878 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
879 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
880 sub_face);
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
881
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
882 process_character (code, previous);
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
883
29679
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 = saved_font;
29678
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
885 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
886 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
887 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
888 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
889 warn_missing_glyph (code);
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 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
892 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
893 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
894 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29655
diff changeset
895 warn_missing_glyph (code);
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
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
898 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
899 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
900 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
901 }
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
902 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
903 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
904 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
905 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
906 || 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
907 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
908 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
909 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
910 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
911 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
912 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
913 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
914 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
915 // 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
916 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
917 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
918 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
919 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
920 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
921 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
922 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
923 switch (m_mode)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
924 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
925 case MODE_RENDER:
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
926 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
927 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
928 : FT_RENDER_MODE_MONO)))
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 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
931 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
932 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
933 else
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 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
936 int x0, y0;
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 if (previous)
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_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
941
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
942 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
943 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
944
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
945 m_xoffset += (delta.x >> 6);
22331
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
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
948 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
949 y0 = 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
950 + (face->glyph->bitmap_top - 1);
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 // '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
953 // 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
954 // 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
955 // horizontal space in the bbox.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
956 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
957 x0 = 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
958
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
959 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
960 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
961 {
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
962 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
963 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
964 ? 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
965 : (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
966
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
967 if (x0+c < 0 || x0+c >= pixels.dim2 ()
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
968 || y0-r < 0 || y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
969 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
970 // ::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
971 // x0+c, y0-r);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
972 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
973 else if (pixels(3, x0+c, y0-r).value () == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
974 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
975 pixels(0, x0+c, y0-r) = m_color(0);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
976 pixels(1, x0+c, y0-r) = m_color(1);
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
977 pixels(2, x0+c, y0-r) = m_color(2);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
978 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
979 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
980 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
981
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
982 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
983 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
984 break;
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 case MODE_BBOX:
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
987 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
988
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
989 // 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
990 // 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
991 // 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
992 if (previous)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
993 {
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
994 FT_Vector delta;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
995
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
996 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
997 FT_KERNING_DEFAULT, &delta);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
998
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
999 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
1000 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1001
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
1002 // 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
1003 // 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
1004
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1005 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
1006 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
1007
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1008 // 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
1009 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
1010 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
1011 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
1012 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1013 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1014 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
1015 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
1016 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1017 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
1018 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
1019 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
1020 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
1021 m_ymax);
26478
6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26376
diff changeset
1022 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
1023 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
1024 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1025 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1026 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1027 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1028 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1029
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1030 return glyph_index;
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1034 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
1035 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1036 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1037 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1038 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1039 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1040 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1041
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1042 // 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
1043
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1044 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
1045
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
1046 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
1047 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
1048 restore_var2 (m_strlist);
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
1049
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1050 m_do_strlist = true;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1051
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1052 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
1053
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1054 lst = m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1055 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1056
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1057 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1058 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
1059 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1060 if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1061 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1062 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
1063 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1064
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1065 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
1066 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
1067 uint32_t u32_c;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1068
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
1069 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
1070 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
1071 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
1072
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1073 // Initialize a new string
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1074 std::string fname = m_font.get_face ()->family_name;
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1075 text_renderer::string fs (str, m_font, m_xoffset, m_yoffset);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1076 std::vector<double> xdata;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1077
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1078 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1079 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1080 // 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
1081 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1082 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
1083 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
1084 {
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1085 // 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
1086 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
1087 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
1088 }
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
1089
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1090 n -= mblen;
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1091
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1092 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
1093 {
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1094 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
1095 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1096 // 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
1097 // 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
1098 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
1099 fs.set_color (m_color);
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1100
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1101 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
1102 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1103 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1104 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
1105 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
1106 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
1107 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
1108 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
1109 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1110 }
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1111 else
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1112 xdata.push_back (m_xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1113 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1114
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1115 glyph_index = process_character (u32_c, previous);
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1116
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1117 if (u32_c == 10)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1118 {
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1119 previous = 0;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1120
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1121 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
1122 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1123 // 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
1124 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1125 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
1126 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
1127 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
1128 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1129 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1130 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1131 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1132
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1133 icurr += mblen;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1134 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1135
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1136 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
1137 && ! fs.get_string ().empty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1138 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1139 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
1140 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
1141 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1142 fs.set_family (fname);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1143 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1144 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1145 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1146 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1147
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1148 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1149 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
1150 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1151 // 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
1152
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1153 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
1154 uint8NDArray saved_color (m_color);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1155
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1156 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1157
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1158 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
1159 m_color = saved_color;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1160 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1163 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
1164 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1165 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
1166 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
1167 int saved_yoffset = m_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1168
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1169 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
1170
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1171 // 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
1172 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
1173 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
1174
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1175 if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1176 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1177 // 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
1178 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
1179
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1180 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1181 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1182 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1183
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1184 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1185
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1186 m_font = saved_font;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1187 // 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
1188 // 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
1189 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
1190 m_yoffset = saved_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1191 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1192
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1193 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1194 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
1195 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1196 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
1197 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
1198 int saved_yoffset = m_yoffset;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1199
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1200 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
1201
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1202 // 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
1203 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
1204 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
1205
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1206 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1207 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1208 // 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
1209 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
1210
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1211 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1212 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1213 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1214
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1215 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1216
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1217 m_font = saved_font;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1218 // 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
1219 // 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
1220 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
1221 m_yoffset = saved_yoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1222 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1223
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1224 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1225 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
1226 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1227 if (m_mode == MODE_RENDER)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1228 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1229 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1230
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1231 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1232 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
1233 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1234 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1235
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1236 // 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
1237 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1238
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1239 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
1240 m_font.get_angle (), sz);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1241
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1242 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1243 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1244 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1245
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1246 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1247 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
1248 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1249 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
1250 m_font.get_size ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1251
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1252 if (m_mode == MODE_BBOX)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1253 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1254 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1257 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
1258 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1259 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1260 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1261 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
1262 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
1263 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1264
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1265 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
1266 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
1267 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1268
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1269 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
1270 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
1271 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1272
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1273 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
1274 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
1275 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1276 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
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_symbol& 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 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1286
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1287 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
1288 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
1289
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1290 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
1291 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1292 process_character (code);
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1293 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
1294 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1295 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
1296 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
1297 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1298 }
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1299 else if (m_font.is_valid ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1300 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1301
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1302 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
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 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
1305 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
1306 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
1307 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1308 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1309 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1312 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
1313 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1314 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
1315 int max_xoffset = m_xoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1316
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
1317 for (auto *txt_elt : e)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1318 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1319 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
1320 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
1321 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
1322 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1323
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1324 m_xoffset = max_xoffset;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1325 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1326
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1327 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1328 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1329 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1330 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1331 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
1332 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
1333 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1334
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1335 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1336 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
1337 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1338 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1339 {
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1340 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
1341 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
1342 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
1343 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1344 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1345 ::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
1346 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1347
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1348 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1349 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
1350 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1351 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1352 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1353 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
1354 box = m_bbox;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1355
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1356 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1357
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1358 if (pixels.numel () > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1359 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1360 elt->accept (*this);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1361
29470
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1362 rotate_pixels (pixels, rotation);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1363 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1364
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1365 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1366 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1367
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1368 // Note:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1369 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1370 // 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
1371 // 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
1372
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1373 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1374 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
1375 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1376 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1377 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1378 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1379
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1380 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1381
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1382 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1383 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1384 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1385 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
1386 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
1387 extent(1) = m_bbox(3);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1388 break;
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 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1391 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
1392 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
1393 extent(1) = m_bbox(2);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1394 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1395
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1396 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1397 }
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 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1400 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
1401 const caseless_str& interpreter)
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 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
1404 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1405 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1406
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1407 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1408 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1411 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
1412 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1413 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1414 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1415 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1416 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1417 int rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1418
29679
7ad7991e946a ft-text-renderer.cc: Use m_ prefix for class data members
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29678
diff changeset
1419 m_halign = _halign;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1420
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1421 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
1422 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1423 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1424
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
1425 if (pxls.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1426 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1427
29470
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1428 // 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
1429 // 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
1430 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
1431 }
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 ft_text_renderer::ft_font::ft_font (const ft_font& ft)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
1434 : text_renderer::font (ft), face (nullptr)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1435 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1436 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1437 FT_Face ft_face = ft.get_face ();
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 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1440 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1441 #endif
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1442 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1443
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1444 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1445 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
1446 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1447 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1448 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1449 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
1450
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1451 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1452 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1453 FT_Done_Face (face);
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
1454 face = nullptr;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1455 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1456
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1457 #if defined (HAVE_FT_REFERENCE_FACE)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1458 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
1459
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1460 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1461 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
1462 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1463 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1464
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1465 return *this;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1466 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1467
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1468 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1469 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
1470 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1471 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1472 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1473 face = ft_manager::get_font (name, weight, angle, size);
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1474
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1475 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1476 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1477 if (FT_Set_Char_Size (face, 0, size*64, 0, 0))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1478 ::warning ("ft_text_renderer: unable to set font size to %g", size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1479 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1480 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1481 ::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
1482 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1483
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1484 return face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1485 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1486 }
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1487
20945
9d9270e2f98f eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents: 20715
diff changeset
1488 #endif
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1489
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1490 namespace octave
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1491 {
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1492 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1493 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1494 {
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1495 #if defined (HAVE_FREETYPE)
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1496 return new ft_text_renderer ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1497 #else
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1498 return 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1499 #endif
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1500 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1501 }