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annotate libinterp/corefcn/ft-text-renderer.cc @ 29489:ee66869c30d6

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Fix loading fonts from path with non-ASCII characters on Windows. * libinterp/corefcn/ft-text-renderer.cc (ft_manager::do_get_font): Use get_ASCII_filename to allow opening fonts on paths with non-ASCII characters on Windows.
author Markus Mützel <markus.muetzel@gmx.de>
date Mon, 05 Apr 2021 10:48:18 +0200
parents 2ae4764180c6
children d57c1d781093
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 : library (), freetype_initialized (false), fontconfig_initialized (false)
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107 {
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108 if (FT_Init_FreeType (&library))
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109 error ("unable to initialize FreeType library");
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110 else
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111 freetype_initialized = true;
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112
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113 #if defined (HAVE_FONTCONFIG)
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114 if (! FcInit ())
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115 error ("unable to initialize fontconfig library");
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116 else
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117 fontconfig_initialized = true;
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118 #endif
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119 }
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120
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121 public:
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122
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123 // No copying!
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124
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125 ft_manager (const ft_manager&) = delete;
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126
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127 ft_manager& operator = (const ft_manager&) = delete;
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128
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129 private:
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130
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131 ~ft_manager (void)
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132 {
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133 if (freetype_initialized)
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134 FT_Done_FreeType (library);
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135
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136 #if defined (HAVE_FONTCONFIG)
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137 // FIXME: Skip the call to FcFini because it can trigger the assertion
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138 //
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139 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
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140 //
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141 // if (fontconfig_initialized)
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142 // FcFini ();
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143 #endif
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144 }
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145
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John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
146 public:
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
147
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parents: 22331
diff changeset
148 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
149 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
150 bool retval = true;
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
151
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Rik <rik@octave.org>
parents: 22331
diff changeset
152 if (! instance)
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Rik <rik@octave.org>
parents: 22331
diff changeset
153 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
154 instance = new ft_manager ();
26369
0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347).
Andreas Weber <octave@josoansi.de>
parents: 26340
diff changeset
155 singleton_cleanup_list::add (cleanup_instance);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
156 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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157
22407
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parents: 22331
diff changeset
158 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
159 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
160
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
161 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
162
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
163 static FT_Face get_font (const std::string& name, const std::string& weight,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
164 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
165 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
166 return (instance_ok ()
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
167 ? instance->do_get_font (name, weight, angle, size)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
168 : nullptr);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
169 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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170
27623
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
171 static octave_map get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
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172 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
173 return (instance_ok ()
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
174 ? instance->do_get_system_fonts ()
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
175 : octave_map ());
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
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176 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
177
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Rik <rik@octave.org>
parents: 22331
diff changeset
178 static void font_destroyed (FT_Face face)
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Rik <rik@octave.org>
parents: 22331
diff changeset
179 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
180 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
181 instance->do_font_destroyed (face);
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Rik <rik@octave.org>
parents: 22331
diff changeset
182 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
183
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
184 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
185
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
186 static ft_manager *instance;
9403
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parents:
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187
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parents: 22331
diff changeset
188 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
189 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
190
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
191 // 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
192 // 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
193 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
194 ft_cache cache;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
195
27623
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
196 static octave_map do_get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
197 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
198 static octave_map font_map;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
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199
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
200 if (font_map.isempty ())
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
201 {
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
202 #if defined (HAVE_FONTCONFIG)
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
203 FcConfig *config = FcConfigGetCurrent();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
204 FcPattern *pat = FcPatternCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
205 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
206 FC_CHARSET, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
207 FcFontSet *fs = FcFontList (config, pat, os);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
208
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
209 if (fs->nfont > 0)
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 // 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
212 FcCharSet *minimal_charset = FcCharSetCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
213 for (int i = 32; i < 127; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
214 FcCharSetAddChar (minimal_charset, static_cast<FcChar32> (i));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
215
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
216 string_vector fields (4);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
217 fields(0) = "family";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
218 fields(1) = "angle";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
219 fields(2) = "weight";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
220 fields(3) = "suitable";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
221
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
222 dim_vector dv (1, fs->nfont);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
223 Cell families (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
224 Cell angles (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
225 Cell weights (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
226 Cell suitable (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
227
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
228 unsigned char *family;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
229 int val;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
230 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
231 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
232 FcPattern *font = fs->fonts[i];
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
233 if (FcPatternGetString (font, FC_FAMILY, 0, &family)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
234 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
235 families(i) = std::string (reinterpret_cast<char*> (family));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
236 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
237 families(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
238
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
239 if (FcPatternGetInteger (font, FC_SLANT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
240 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
241 angles(i) = (val == FC_SLANT_ITALIC
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
242 || val == FC_SLANT_OBLIQUE)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
243 ? "italic" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
244 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
245 angles(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
246
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
247 if (FcPatternGetInteger (font, FC_WEIGHT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
248 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
249 weights(i) = (val == FC_WEIGHT_BOLD
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
250 || val == FC_WEIGHT_DEMIBOLD)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
251 ? "bold" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
252 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
253 weights(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
254
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
255 FcCharSet *cset;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
256 if (FcPatternGetCharSet (font, FC_CHARSET, 0, &cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
257 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
258 suitable(i) = (FcCharSetIsSubset (minimal_charset, cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
259 ? true : false);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
260 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
261 suitable(i) = false;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
262 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
263
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
264 font_map = octave_map (dv, fields);
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.assign ("family", families);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
267 font_map.assign ("angle", angles);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
268 font_map.assign ("weight", weights);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
269 font_map.assign ("suitable", suitable);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
270
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
271 if (fs)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
272 FcFontSetDestroy (fs);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
273 }
28483
98889de398dd * ft-text-renderer.cc: Allow build to succeed if HAVE_FONTCONFIG is undefined.
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274 #endif
27623
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275 }
698c8b08fe8c New function uisetfont (bug #57130).
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276
698c8b08fe8c New function uisetfont (bug #57130).
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diff changeset
277 return font_map;
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278 }
698c8b08fe8c New function uisetfont (bug #57130).
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279
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280 FT_Face do_get_font (const std::string& name, const std::string& weight,
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281 const std::string& angle, double size)
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282 {
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283 FT_Face retval = nullptr;
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284
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285 #if defined (HAVE_FT_REFERENCE_FACE)
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286 // Look first into the font cache, then use fontconfig. If the font
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diff changeset
287 // is present in the cache, simply add a reference and return it.
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diff changeset
288
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diff changeset
289 ft_key key (name + ':' + weight + ':' + angle, size);
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290 ft_cache::const_iterator it = cache.find (key);
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291
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292 if (it != cache.end ())
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293 {
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294 FT_Reference_Face (it->second);
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diff changeset
295 return it->second;
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296 }
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297 #endif
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298
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299 static std::string fonts_dir;
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300
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301 if (fonts_dir.empty ())
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302 {
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303 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR");
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304
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305 if (fonts_dir.empty ())
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306 #if defined (SYSTEM_FREEFONT_DIR)
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307 fonts_dir = SYSTEM_FREEFONT_DIR;
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308 #else
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diff changeset
309 fonts_dir = config::oct_fonts_dir ();
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310 #endif
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311 }
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312
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313
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314 // Default font file
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315 std::string file;
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316
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317 if (! fonts_dir.empty ())
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diff changeset
318 {
25336
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diff changeset
319 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans";
24126
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320
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diff changeset
321 if (weight == "bold")
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322 file += "Bold";
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323
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
324 if (angle == "italic" || angle == "oblique")
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325 file += "Oblique";
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diff changeset
326
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diff changeset
327 file += ".otf";
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diff changeset
328 }
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diff changeset
329
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1555c5a177c9 better fix for fontconfig segfault
John W. Eaton <jwe@octave.org>
parents: 13999
diff changeset
330 #if defined (HAVE_FONTCONFIG)
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diff changeset
331 if (name != "*" && fontconfig_initialized)
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diff changeset
332 {
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333 int fc_weight, fc_angle;
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334
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335 if (weight == "bold")
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336 fc_weight = FC_WEIGHT_BOLD;
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337 else
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338 fc_weight = FC_WEIGHT_NORMAL;
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339
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340 if (angle == "italic")
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341 fc_angle = FC_SLANT_ITALIC;
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diff changeset
342 else if (angle == "oblique")
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343 fc_angle = FC_SLANT_OBLIQUE;
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diff changeset
344 else
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345 fc_angle = FC_SLANT_ROMAN;
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346
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diff changeset
347 FcPattern *pat = FcPatternCreate ();
9403
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diff changeset
348
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diff changeset
349 FcPatternAddString (pat, FC_FAMILY,
23447
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diff changeset
350 (reinterpret_cast<const FcChar8 *>
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diff changeset
351 (name.c_str ())));
9616
2093499ec9f4 avoid crash if default font can't be found
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diff changeset
352
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diff changeset
353 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
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diff changeset
354 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
355 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
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diff changeset
356
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diff changeset
357 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
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diff changeset
358 {
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diff changeset
359 FcResult res;
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diff changeset
360 FcPattern *match;
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diff changeset
361
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diff changeset
362 FcDefaultSubstitute (pat);
23795
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diff changeset
363 match = FcFontMatch (nullptr, pat, &res);
9833
637fa784d102 Allow more font matches
godfrey@isl.Stanford.EDU
parents: 9619
diff changeset
364
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diff changeset
365 // FIXME: originally, this test also required that
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diff changeset
366 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
367 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
368 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
369 unsigned char *tmp;
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diff changeset
370
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diff changeset
371 FcPatternGetString (match, FC_FILE, 0, &tmp);
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
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diff changeset
372 file = reinterpret_cast<char *> (tmp);
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diff changeset
373 }
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
374 else
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diff changeset
375 ::warning ("could not match any font: %s-%s-%s-%g, using default font",
22407
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diff changeset
376 name.c_str (), weight.c_str (), angle.c_str (),
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
377 size);
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diff changeset
378
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diff changeset
379 if (match)
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diff changeset
380 FcPatternDestroy (match);
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diff changeset
381 }
9403
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diff changeset
382
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diff changeset
383 FcPatternDestroy (pat);
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diff changeset
384 }
9403
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diff changeset
385 #endif
4af6e29449c1 [mq]: graphics_text_engine
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parents:
diff changeset
386
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diff changeset
387 if (file.empty ())
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diff changeset
388 ::warning ("unable to find default font files");
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
389 else
22407
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diff changeset
390 {
29489
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
391 std::string ascii_file = sys::get_ASCII_filename (file);
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
392 if (FT_New_Face (library, ascii_file.c_str (), 0, &retval))
22407
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diff changeset
393 ::warning ("ft_manager: unable to load font: %s", file.c_str ());
21209
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John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
394 #if defined (HAVE_FT_REFERENCE_FACE)
22407
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diff changeset
395 else
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parents: 22331
diff changeset
396 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
397 // Install a finalizer to notify ft_manager that the font is
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
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diff changeset
398 // being destroyed. The class ft_manager only keeps weak
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
399 // references to font objects.
17270
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diff changeset
400
22407
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diff changeset
401 retval->generic.data = new ft_key (key);
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diff changeset
402 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
403
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
404 // 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
405 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
406 cache[key] = retval;
22407
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Rik <rik@octave.org>
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diff changeset
407 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
408 #endif
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
409 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
410
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
411 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
412 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
413
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
414 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
415 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
416 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
417 {
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
418 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
419
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
420 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
421 delete pkey;
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
422 face->generic.data = nullptr;
28206
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27923
diff changeset
423 FT_Done_Face (face);
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
424 }
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
425 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
426
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
427 private:
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
428 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
429 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
430 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
431 };
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
432
23457
21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible.
Rik <rik@octave.org>
parents: 23447
diff changeset
433 ft_manager *ft_manager::instance = nullptr;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
434
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
435 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
436 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
437 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
438 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
439 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
440
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
441 class
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diff changeset
442 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
443 ft_text_renderer : public base_text_renderer
21209
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John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
444 {
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
445 public:
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
446
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
447 enum
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
448 {
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parents: 22326
diff changeset
449 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
450 MODE_RENDER = 1
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diff changeset
451 };
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parents: 22326
diff changeset
452
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
453 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
454
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
455 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
456 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0),
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
457 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX),
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
458 color (dim_vector (1, 3), 0), m_do_strlist (false), m_strlist (),
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
459 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
460 m_max_fontsize (0), m_antialias (true)
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
461 { }
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
462
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
463 // No copying!
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
464
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
465 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
466
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
467 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
468
22868
87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors
John W. Eaton <jwe@octave.org>
parents: 22865
diff changeset
469 ~ft_text_renderer (void) = default;
22331
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diff changeset
470
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
471 void visit (text_element_string& e);
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diff changeset
472
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diff changeset
473 void visit (text_element_list& e);
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John W. Eaton <jwe@octave.org>
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diff changeset
474
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diff changeset
475 void visit (text_element_subscript& e);
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diff changeset
476
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diff changeset
477 void visit (text_element_superscript& e);
21209
67d2965af0b5 revamp text rendering classes
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parents: 21200
diff changeset
478
22331
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diff changeset
479 void visit (text_element_color& e);
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diff changeset
480
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
481 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
482
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
483 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
484
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
485 void visit (text_element_fontstyle& e);
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John W. Eaton <jwe@octave.org>
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diff changeset
486
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diff changeset
487 void visit (text_element_symbol& e);
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diff changeset
488
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diff changeset
489 void visit (text_element_combined& e);
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parents: 22326
diff changeset
490
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
491 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
492
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
493 uint8NDArray get_pixels (void) const { return pixels; }
21209
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John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
494
22331
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diff changeset
495 Matrix get_boundingbox (void) const { return bbox; }
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diff changeset
496
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diff changeset
497 uint8NDArray render (text_element *elt, Matrix& box,
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diff changeset
498 int rotation = ROTATION_0);
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diff changeset
499
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
500 Matrix get_extent (text_element *elt, double rotation = 0.0);
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diff changeset
501 Matrix get_extent (const std::string& txt, double rotation,
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
502 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
503
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
504 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
505
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
506 void set_font (const std::string& name, const std::string& weight,
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
507 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
508
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
509 octave_map get_system_fonts (void);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
510
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
511 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
512
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
513 void set_mode (int m);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
514
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
515 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
516 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
517 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
518 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
519 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
520
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
521 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
522
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
523 // 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
524 // 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
525
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
526 class ft_font : public text_renderer::font
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
527 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
528 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
529
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
530 ft_font (void)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
531 : text_renderer::font (), face (nullptr) { }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
532
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
533 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
534 const std::string& ang, double sz, FT_Face f = nullptr)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
535 : text_renderer::font (nm, wt, ang, sz), face (f)
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
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
538 ft_font (const ft_font& ft);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
539
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
540 ~ft_font (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
541 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
542 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
543 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
544 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
545
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
546 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
547
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
548 bool is_valid (void) const { return get_face (); }
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
549
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
550 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
551
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
552 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
553
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
554 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
555 };
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
556
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
557 void push_new_line (void);
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diff changeset
558
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
559 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
560
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
561 void compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
562
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
563 int compute_line_xoffset (const Matrix& lb) const;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
564
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
565 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
566
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
567 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
568
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
569 void text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
570 std::list<text_renderer::string>& lst, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
571 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
572 const caseless_str& interp);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
573
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
574 private:
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
575
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
576 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
577 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
578
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
579 // Used to stored the bounding box corresponding to the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
580 // 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
581 // 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
582 // 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
583 // multiple lines, the value y is usually negative.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
584 Matrix bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
585
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
586 // Used to stored the rendered text. It's a 3D matrix with size MxNx4
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
587 // where M and N are the width and height of the bounding box.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
588 uint8NDArray pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
589
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
590 // 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
591 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
592 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
593
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
594 // The current horizontal alignment. This is used to align multi-line text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
595 int halign;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
596
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
597 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
598 int xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
599
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
600 // The Y offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
601 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
602
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
603 // The Y offset of the baseline for the next glyph. The offset is relative
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
604 // to line_yoffset. The total Y offset is computed with:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
605 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
606 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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 mode of the rendering process (box computing or rendering).
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
609 int mode;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
610
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
611 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
612 uint8NDArray color;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
613
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
614 // 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
615 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
616 std::list<text_renderer::string> m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
617
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
618 // The X offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
619 int line_xoffset;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
620
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
621 // 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
622 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
623 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
624
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
625 // 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
626 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
627
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
628 // 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
629 double m_max_fontsize;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
630
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
631 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
632 bool m_antialias;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
633
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
634 };
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
635
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
636 void
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
637 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
638 const std::string& weight,
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
639 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
640 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
641 // FIXME: take "fontunits" into account
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
642 font = ft_font (name, weight, angle, size, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
643 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
644
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
645 octave_map
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
646 ft_text_renderer::get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
647 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
648 return ft_manager::get_system_fonts ();
22331
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John W. Eaton <jwe@octave.org>
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diff changeset
649 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
650
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
651 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
652 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
653 {
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
654 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
655 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
656 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
657 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
658 // 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
659
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
660 FT_Face face = font.get_face ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
661
22331
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diff changeset
662 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
663 {
b81b08cc4c83 maint: Indent namespaces in more files.
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diff changeset
664 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
665
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
666 line_bbox.push_back (bb);
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
667
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
668 xoffset = 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
669 m_ymin = m_ymax = m_deltax = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
670 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
671 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
672 break;
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
673
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
674 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
675 {
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
676 // 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
677 // 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
678
22331
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diff changeset
679 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
680 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
681 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
682
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
683 xoffset = line_xoffset = compute_line_xoffset (new_bbox);
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
684 line_yoffset -= (-old_bbox(1) + math::round (0.4 * m_max_fontsize)
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
685 + (new_bbox(3) + new_bbox(1)));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
686 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
687 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
688 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
689 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
690 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
691 }
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 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
694 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
695 {
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
696 if (! bbox.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
697 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
698 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
699 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
700 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
701 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
702 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
703 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
704 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
705 return (bbox(2) - lb(2));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
706 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
707 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
708
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
709 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
710 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
711
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
712 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
713 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
714 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
715 // 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
716 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
717
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
718 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
719
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
720 switch (line_bbox.size ())
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 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
723 break;
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 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
726 bbox = line_bbox.front ().extract (0, 0, 0, 3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
727 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
728
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
729 default:
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
730 for (const auto& lbox : line_bbox)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
731 {
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
732 if (bbox.isempty ())
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
733 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
734 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
735 {
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
736 double delta = math::round (0.4 * m_max_fontsize) + lbox(3);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
737 bbox(1) -= delta;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
738 bbox(3) += delta;
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23577
diff changeset
739 bbox(2) = math::max (bbox(2), lbox(2));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
740 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
741 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
742 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
743 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
744 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
745
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
746 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
747 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
748 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
749 // 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
750 // 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
751 // 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
752 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
753
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
754 if (mode == MODE_BBOX)
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 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
757 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
758 // 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
759 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
760 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
761 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
762 bb(2) += m_deltax;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
763 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
764 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
765
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
766 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
767 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
768 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
769 mode = m;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
770
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
771 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
772 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
773 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
774 xoffset = line_yoffset = 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
775 m_max_fontsize = 0.0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
776 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
777 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
778 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
779 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
780
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
781 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
782 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
783 {
22515
77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents: 22407
diff changeset
784 ::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
785
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
786 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
787 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
788 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
789 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
790 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
791 dim_vector d (4, octave_idx_type (bbox(2)),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
792 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
793 pixels = uint8NDArray (d, static_cast<uint8_t> (0));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
794 xoffset = compute_line_xoffset (line_bbox.front ());
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
795 line_yoffset = -bbox(1);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
796 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
797 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
798 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
799
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
800 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
801 error ("ft_text_renderer: invalid mode '%d'", mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
802 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
803 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
804 }
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
805 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
806 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
807 // 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
808 // 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
809 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
810 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
811 char cvalue = row[x >> 3];
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
812
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
813 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
814 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
815
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
816 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
817 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
818 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
819 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
820 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
821
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
822 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
823 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
824 glyph_index = FT_Get_Char_Index (face, code);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
825
29489
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
826
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
827 // FIXME: Add rotated characters:
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
828 // FT_Set_Transform( face, &matrix, &pen );
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
829
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
830 if (code != '\n' && code != '\t'
29489
ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29470
diff changeset
831
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
832 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
833 || 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
834 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
835 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
836 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
837 }
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
838 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
839 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
840 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
841 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
842 || 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
843 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
844 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
845 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
846 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
847 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
848 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
849 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
850 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
851 // 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
852 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
853 int x_tab = 4 * (face->glyph->advance.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
854 xoffset = (1 + std::floor (1. * xoffset / x_tab)) * x_tab;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
855 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
856 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
857 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
858 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
859 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
860 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
861 case MODE_RENDER:
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
862 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
863 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
864 : FT_RENDER_MODE_MONO)))
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
865 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
866 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
867 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
868 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
869 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
870 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
871 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
872 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
873
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
874 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
875 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
876 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
877
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
878 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
879 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
880 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
881 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
882
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
883 x0 = xoffset + face->glyph->bitmap_left;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
884 y0 = line_yoffset + yoffset + (face->glyph->bitmap_top - 1);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
885
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
886 // '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
887 // 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
888 // 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
889 // horizontal space in the bbox.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
890 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
891 x0 = 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
892
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
893 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
894 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
895 {
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
896 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
897 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
898 ? 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
899 : (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
900
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
901 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
902 || y0-r < 0 || y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
903 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
904 // ::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
905 // x0+c, y0-r);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
906 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
907 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
908 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
909 pixels(0, x0+c, y0-r) = color(0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
910 pixels(1, x0+c, y0-r) = color(1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
911 pixels(2, x0+c, y0-r) = color(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
912 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
913 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
914 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
915
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
916 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
917 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
918 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
919
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
920 case MODE_BBOX:
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
921 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
922
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
923 // 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
924 // 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
925 // 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
926 if (previous)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
927 {
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
928 FT_Vector delta;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
929
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
930 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
931 FT_KERNING_DEFAULT, &delta);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
932
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
933 xoffset += (delta.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
934 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
935
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
936 // 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
937 // 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
938
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
939 xoffset += (face->glyph->advance.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
940 bb(2) = math::max (bb(2), xoffset);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
941
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
942 // 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
943 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
944 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
945 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
946 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
947 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
948 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
949 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
950 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
951 m_deltax = (glyph_bbox.xMax - face->glyph->advance.x) >> 6;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
952 m_ymin = math::min ((glyph_bbox.yMin >> 6) + yoffset,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
953 m_ymin);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
954 m_ymax = math::max ((glyph_bbox.yMax >> 6) + yoffset,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
955 m_ymax);
26478
6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26376
diff changeset
956 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
957 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
958 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
959 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
960 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
961 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
962 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
963
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
964 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
965 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
966
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
967 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
968 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
969 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
970 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
971 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
972 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
973 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
974 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
975
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
976 // 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
977
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
978 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
979
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
980 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
981 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
982 restore_var2 (m_strlist);
28857
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier
John W. Eaton <jwe@octave.org>
parents: 28823
diff changeset
983
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
984 m_do_strlist = true;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
985
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
986 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
987
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
988 lst = m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
989 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
990
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
991 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
992 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
993 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
994 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
995 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
996 m_max_fontsize = std::max (m_max_fontsize, font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
997 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
998
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
999 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
1000 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
1001 uint32_t u32_c;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1002
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1003 size_t n = str.size ();
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1004 size_t icurr = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1005 size_t ibegin = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1006
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1007 // Initialize a new string
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1008 std::string fname = font.get_face ()->family_name;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1009 text_renderer::string fs (str, font, xoffset, yoffset);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1010 std::vector<double> xdata;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1011
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1012 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1013 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1014 // 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
1015 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1016 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
1017 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
1018 {
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1019 // 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
1020 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
1021 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
1022 }
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
1023
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1024 n -= mblen;
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1025
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1026 if (m_do_strlist && mode == MODE_RENDER)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1027 {
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1028 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
1029 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1030 // 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
1031 // the newline character
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1032 fs.set_y (line_yoffset + yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1033 fs.set_color (color);
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1034
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1035 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
1036 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1037 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1038 fs.set_string (s);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1039 fs.set_y (line_yoffset + yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1040 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
1041 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
1042 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
1043 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1044 }
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1045 else
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1046 xdata.push_back (xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1047 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1048
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1049 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
1050
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1051 if (u32_c == 10)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1052 {
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1053 previous = 0;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1054
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1055 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1056 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1057 // 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
1058 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1059 xdata.clear ();
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1060 fs = text_renderer::string (str.substr (ibegin), font,
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1061 line_xoffset, yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1062 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1063 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1064 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1065 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1066
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1067 icurr += mblen;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1068 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1069
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1070 if (m_do_strlist && mode == MODE_RENDER && ! fs.get_string ().empty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1071 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1072 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1073 fs.set_color (color);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1074 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1075 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
1076 m_strlist.push_back (fs);
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 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1079 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1080
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1081 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1082 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
1083 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1084 // 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
1085
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1086 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1087 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1088
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1089 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1090
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1091 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1092 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1093 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1094
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1095 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1096 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
1097 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1098 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1099 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1100 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1101
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1102 double sz = font.get_size ();
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1103
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1104 // Reducing font size by 70% produces decent results.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1105 set_font (font.get_name (), font.get_weight (), font.get_angle (),
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1106 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
1107
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1108 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1109 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1110 // Shifting the baseline by 15% of the font size gives decent results.
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1111 yoffset -= std::ceil (sz * 0.15);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1112
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1113 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1114 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1115 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1116
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1117 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1118
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1119 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1120 // 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
1121 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1122 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1123 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1124 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1125
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1126 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1127 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
1128 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1129 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1130 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1131 int saved_yoffset = yoffset;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1132
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1133 double sz = font.get_size ();
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1134
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1135 // Reducing font size by 70% produces decent results.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1136 set_font (font.get_name (), font.get_weight (), font.get_angle (),
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1137 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
1138
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1139 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1140 {
28305
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1141 // Shifting the baseline by 40% of the font size gives decent results.
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 28206
diff changeset
1142 yoffset += std::ceil (sz * 0.4);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1143
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1144 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1145 update_line_bbox ();
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1149
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1150 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1151 // 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
1152 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1153 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1154 yoffset = saved_yoffset;
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
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1157 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1158 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
1159 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1160 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1161 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1162 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1163
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1164 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1165 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
1166 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1167 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1168
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1169 // 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
1170 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1171
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1172 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1173
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1174 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1175 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1176 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1177
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1178 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1179 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
1180 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1181 set_font (e.get_fontname (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1182 font.get_size ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1183
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1184 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1185 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1186 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1187
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1188 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1189 ft_text_renderer::visit (text_element_fontstyle& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1190 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1191 switch (e.get_fontstyle ())
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 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1194 set_font (font.get_name (), "normal", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1195 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1196
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1197 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1198 set_font (font.get_name (), "bold", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1199 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1200
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1201 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1202 set_font (font.get_name (), "normal", "italic", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1203 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1204
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1205 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1206 set_font (font.get_name (), "normal", "oblique", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1207 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1208 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1209
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1210 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1211 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1212 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1215 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
1216 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1217 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1218
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1219 std::vector<double> xdata (1, xoffset);
23807
336f89b6208b Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents: 23795
diff changeset
1220 text_renderer::string fs ("-", font, xoffset, yoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1221
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1222 if (code != text_element_symbol::invalid_code && font.is_valid ())
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 process_character (code);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1225 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1226 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1227 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
1228 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
1229 }
22331
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 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1232 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1233
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1234 if (m_do_strlist && mode == MODE_RENDER && fs.get_code ())
22331
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 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1237 fs.set_color (color);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1238 fs.set_family (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
1239 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1240 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1241 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1242
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1243 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1244 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
1245 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1246 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1247 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1248
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
1249 for (auto *txt_elt : e)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1250 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1251 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
1252 txt_elt->accept (*this);
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23577
diff changeset
1253 max_xoffset = math::max (xoffset, max_xoffset);
22331
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 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1257 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1258
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1259 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1260 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1261 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1262 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1263 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
1264 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
1265 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1266
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1267 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1268 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
1269 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1270 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1271 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1272 color(0) = static_cast<uint8_t> (c(0)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1273 color(1) = static_cast<uint8_t> (c(1)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1274 color(2) = static_cast<uint8_t> (c(2)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1275 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1276 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1277 ::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
1278 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1279
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1280 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1281 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
1282 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1283 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1284 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1285 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1286 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1287
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1288 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1289
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1290 if (pixels.numel () > 0)
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 elt->accept (*this);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1293
29470
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1294 rotate_pixels (pixels, rotation);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1295 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1296
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1297 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1298 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1299
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1300 // Note:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1301 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1302 // 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
1303 // 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
1304
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1305 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1306 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
1307 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1308 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1309 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1310 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1311
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1312 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1313
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1314 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1315 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1316 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1317 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1318 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1319 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1320 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1321
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1322 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1323 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1324 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1325 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1326 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1327
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1328 return extent;
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
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1331 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1332 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
1333 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1334 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1335 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
1336 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1337 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1338
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1339 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1340 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1341
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1342 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1343 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
1344 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1345 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1346 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1347 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1348 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1349 int rot_mode = rotation_to_mode (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 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1352
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1353 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
1354 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1355 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1356
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
1357 if (pxls.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1358 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1359
29470
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1360 // 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
1361 // for text rotated 90° 180° or 270°
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 29359
diff changeset
1362 fix_bbox_anchor (box, halign, valign, rot_mode, handle_rotation);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1363 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1364
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1365 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
1366 : text_renderer::font (ft), face (nullptr)
22331
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 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1369 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1370
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1371 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
1372 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1373 #endif
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1374 }
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 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1377 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
1378 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1379 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1380 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1381 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
1382
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1383 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1384 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1385 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
1386 face = nullptr;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1387 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1388
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1389 #if defined (HAVE_FT_REFERENCE_FACE)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1390 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
1391
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1392 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
1393 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
1394 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1395 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1396
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1397 return *this;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1398 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1399
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1400 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1401 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
1402 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1403 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1404 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1405 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
1406
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1407 if (face)
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 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
1410 ::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
1411 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1412 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1413 ::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
1414 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1415
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1416 return face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1417 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1418 }
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1419
20945
9d9270e2f98f eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents: 20715
diff changeset
1420 #endif
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1421
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1422 namespace octave
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1423 {
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1424 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1425 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1426 {
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1427 #if defined (HAVE_FREETYPE)
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1428 return new ft_text_renderer ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1429 #else
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1430 return 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1431 #endif
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1432 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1433 }