Mercurial > octave
annotate libinterp/corefcn/ft-text-renderer.cc @ 23462:314d980bee93
maint: Add '#include "XXX.h"' to XXX.cc files.
* __init_qt__.cc, data.cc, ft-text-renderer.cc, sparse-dmsolve.cc:
Add '#include "XXX.h".
* oct-string.cc, ov-java.h, singleton-cleanup.cc: Use quotes rather than angle
brackets for #includes of local header files.
author | Rik <rik@octave.org> |
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date | Tue, 02 May 2017 16:01:14 -0700 |
parents | 21baad6b35c4 |
children | 80c42f4cca13 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2016-2017 John W. Eaton |
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4 Copyright (C) 2009-2016 Michael Goffioul |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation; either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include "base-text-renderer.h" |
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29 #include "ft-text-renderer.h" |
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30 |
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31 #if defined (HAVE_FREETYPE) |
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32 |
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33 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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34 #pragma GCC diagnostic push |
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35 #pragma GCC diagnostic ignored "-Wold-style-cast" |
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36 #endif |
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37 |
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38 #include <ft2build.h> |
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39 #include FT_FREETYPE_H |
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40 |
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41 #if defined (HAVE_FONTCONFIG) |
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42 # include <fontconfig/fontconfig.h> |
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43 #endif |
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44 |
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45 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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46 #pragma GCC diagnostic pop |
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47 #endif |
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48 |
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49 #include <clocale> |
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50 #include <cwchar> |
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51 #include <iostream> |
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52 #include <map> |
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53 #include <utility> |
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54 |
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55 #include "singleton-cleanup.h" |
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56 |
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57 #include "error.h" |
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58 #include "pr-output.h" |
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59 #include "text-renderer.h" |
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60 |
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61 // FIXME: maybe issue at most one warning per glyph/font/size/weight |
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62 // combination. |
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63 |
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64 static void |
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65 warn_missing_glyph (FT_ULong c) |
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66 { |
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67 warning_with_id ("Octave:missing-glyph", |
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68 "text_renderer: skipping missing glyph for character '%x'", c); |
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69 } |
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70 |
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71 static void |
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72 warn_glyph_render (FT_ULong c) |
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73 { |
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74 warning_with_id ("Octave:glyph-render", |
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75 "text_renderer: unable to render glyph for character '%x'", c); |
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76 } |
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77 |
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78 #if defined (_MSC_VER) |
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79 // FIXME: is this really needed? |
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80 // |
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81 // This is just a trick to avoid multiple symbol definitions. |
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82 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type> |
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83 // that will cause MSVC not to generate a new instantiation and |
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84 // use the imported one instead. |
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85 # include "PermMatrix.h" |
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86 #endif |
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87 |
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88 // Forward declaration |
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89 static void ft_face_destroyed (void *object); |
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90 |
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91 namespace octave |
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92 { |
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93 class |
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94 ft_manager |
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95 { |
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96 private: |
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97 |
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98 ft_manager (void) |
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99 : library (), freetype_initialized (false), fontconfig_initialized (false) |
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100 { |
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101 if (FT_Init_FreeType (&library)) |
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102 error ("unable to initialize FreeType library"); |
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103 else |
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104 freetype_initialized = true; |
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105 |
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106 #if defined (HAVE_FONTCONFIG) |
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107 if (! FcInit ()) |
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108 error ("unable to initialize fontconfig library"); |
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109 else |
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110 fontconfig_initialized = true; |
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111 #endif |
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112 } |
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113 |
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114 public: |
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115 |
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116 // No copying! |
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117 |
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118 ft_manager (const ft_manager&) = delete; |
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119 |
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120 ft_manager& operator = (const ft_manager&) = delete; |
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121 |
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122 private: |
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123 |
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124 ~ft_manager (void) |
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125 { |
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126 if (freetype_initialized) |
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127 FT_Done_FreeType (library); |
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128 |
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129 #if defined (HAVE_FONTCONFIG) |
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130 // FIXME: Skip the call to FcFini because it can trigger the assertion |
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131 // |
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132 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed. |
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133 // |
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134 // if (fontconfig_initialized) |
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135 // FcFini (); |
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136 #endif |
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137 } |
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138 |
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139 public: |
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140 |
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141 static bool instance_ok (void) |
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142 { |
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143 bool retval = true; |
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144 |
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145 if (! instance) |
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146 { |
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147 instance = new ft_manager (); |
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148 |
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149 if (instance) |
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150 singleton_cleanup_list::add (cleanup_instance); |
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151 } |
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152 |
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153 if (! instance) |
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154 error ("unable to create ft_manager!"); |
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155 |
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156 return retval; |
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157 } |
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158 |
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159 static void cleanup_instance (void) { delete instance; instance = 0; } |
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160 |
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161 static FT_Face get_font (const std::string& name, const std::string& weight, |
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162 const std::string& angle, double size) |
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163 { |
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164 return (instance_ok () |
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165 ? instance->do_get_font (name, weight, angle, size) |
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166 : 0); |
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167 } |
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168 |
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169 static void font_destroyed (FT_Face face) |
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170 { |
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171 if (instance_ok ()) |
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172 instance->do_font_destroyed (face); |
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173 } |
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174 |
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175 private: |
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176 |
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177 static ft_manager *instance; |
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178 |
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179 typedef std::pair<std::string, double> ft_key; |
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180 typedef std::map<ft_key, FT_Face> ft_cache; |
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181 |
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182 // Cache the fonts loaded by FreeType. This cache only contains |
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183 // weak references to the fonts, strong references are only present |
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184 // in class text_renderer. |
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185 ft_cache cache; |
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186 |
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187 FT_Face do_get_font (const std::string& name, const std::string& weight, |
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188 const std::string& angle, double size) |
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189 { |
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190 FT_Face retval = 0; |
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191 |
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192 #if defined (HAVE_FT_REFERENCE_FACE) |
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193 // Look first into the font cache, then use fontconfig. If the font |
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194 // is present in the cache, simply add a reference and return it. |
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195 |
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196 ft_key key (name + ":" + weight + ":" + angle, size); |
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197 ft_cache::const_iterator it = cache.find (key); |
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198 |
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199 if (it != cache.end ()) |
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200 { |
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201 FT_Reference_Face (it->second); |
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202 return it->second; |
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203 } |
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204 #endif |
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205 |
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206 std::string file; |
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207 |
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208 #if defined (HAVE_FONTCONFIG) |
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209 if (fontconfig_initialized) |
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210 { |
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211 int fc_weight, fc_angle; |
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212 |
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213 if (weight == "bold") |
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214 fc_weight = FC_WEIGHT_BOLD; |
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215 else if (weight == "light") |
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216 fc_weight = FC_WEIGHT_LIGHT; |
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217 else if (weight == "demi") |
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218 fc_weight = FC_WEIGHT_DEMIBOLD; |
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219 else |
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220 fc_weight = FC_WEIGHT_NORMAL; |
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221 |
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222 if (angle == "italic") |
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223 fc_angle = FC_SLANT_ITALIC; |
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224 else if (angle == "oblique") |
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225 fc_angle = FC_SLANT_OBLIQUE; |
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226 else |
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227 fc_angle = FC_SLANT_ROMAN; |
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228 |
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229 FcPattern *pat = FcPatternCreate (); |
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230 |
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231 FcPatternAddString (pat, FC_FAMILY, |
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232 (reinterpret_cast<const FcChar8 *> |
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233 (name == "*" ? "sans" : name.c_str ()))); |
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234 |
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235 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight); |
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236 FcPatternAddInteger (pat, FC_SLANT, fc_angle); |
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237 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size); |
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238 |
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239 if (FcConfigSubstitute (0, pat, FcMatchPattern)) |
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240 { |
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241 FcResult res; |
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242 FcPattern *match; |
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243 |
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244 FcDefaultSubstitute (pat); |
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245 match = FcFontMatch (0, pat, &res); |
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247 // FIXME: originally, this test also required that |
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248 // res != FcResultNoMatch. Is that really needed? |
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249 if (match) |
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250 { |
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251 unsigned char *tmp; |
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252 |
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253 FcPatternGetString (match, FC_FILE, 0, &tmp); |
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254 file = reinterpret_cast<char *> (tmp); |
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255 } |
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256 else |
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257 ::warning ("could not match any font: %s-%s-%s-%g", |
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258 name.c_str (), weight.c_str (), angle.c_str (), |
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259 size); |
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260 |
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261 if (match) |
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262 FcPatternDestroy (match); |
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263 } |
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264 |
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265 FcPatternDestroy (pat); |
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266 } |
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267 #endif |
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268 |
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269 if (file.empty ()) |
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270 { |
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271 #if defined (OCTAVE_USE_WINDOWS_API) |
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272 file = "C:/WINDOWS/Fonts/verdana.ttf"; |
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273 #else |
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274 // FIXME: find a "standard" font for UNIX platforms |
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275 #endif |
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276 } |
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277 |
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278 if (! file.empty ()) |
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279 { |
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280 if (FT_New_Face (library, file.c_str (), 0, &retval)) |
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281 ::warning ("ft_manager: unable to load font: %s", file.c_str ()); |
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282 #if defined (HAVE_FT_REFERENCE_FACE) |
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283 else |
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284 { |
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285 // Install a finalizer to notify ft_manager that the font is |
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286 // being destroyed. The class ft_manager only keeps weak |
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287 // references to font objects. |
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288 |
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289 retval->generic.data = new ft_key (key); |
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290 retval->generic.finalizer = ft_face_destroyed; |
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291 |
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292 // Insert loaded font into the cache. |
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293 |
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294 cache[key] = retval; |
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295 } |
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296 #endif |
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297 } |
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298 |
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299 return retval; |
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300 } |
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301 |
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302 void do_font_destroyed (FT_Face face) |
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303 { |
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304 if (face->generic.data) |
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305 { |
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306 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data); |
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307 |
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308 cache.erase (*pkey); |
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309 delete pkey; |
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310 face->generic.data = 0; |
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311 } |
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312 } |
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313 |
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314 private: |
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315 FT_Library library; |
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316 bool freetype_initialized; |
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317 bool fontconfig_initialized; |
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318 }; |
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319 |
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320 ft_manager *ft_manager::instance = nullptr; |
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321 |
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322 } |
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323 |
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324 static void |
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325 ft_face_destroyed (void *object) |
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326 { |
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327 octave::ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object)); |
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328 } |
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329 |
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330 namespace octave |
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331 { |
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332 class |
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333 OCTINTERP_API |
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334 ft_text_renderer : public base_text_renderer |
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335 { |
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336 public: |
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337 |
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338 enum |
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339 { |
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340 MODE_BBOX = 0, |
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341 MODE_RENDER = 1 |
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342 }; |
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343 |
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344 enum |
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345 { |
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346 ROTATION_0 = 0, |
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347 ROTATION_90 = 1, |
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348 ROTATION_180 = 2, |
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349 ROTATION_270 = 3 |
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350 }; |
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351 |
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352 public: |
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353 |
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354 ft_text_renderer (void) |
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355 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0), |
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356 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX), |
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357 color (dim_vector (1, 3), 0) |
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358 { } |
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359 |
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360 // No copying! |
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361 |
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362 ft_text_renderer (const ft_text_renderer&) = delete; |
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363 |
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364 ft_text_renderer& operator = (const ft_text_renderer&) = delete; |
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365 |
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366 ~ft_text_renderer (void) = default; |
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367 |
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368 void visit (text_element_string& e); |
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369 |
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370 void visit (text_element_list& e); |
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371 |
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372 void visit (text_element_subscript& e); |
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373 |
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374 void visit (text_element_superscript& e); |
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375 |
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376 void visit (text_element_color& e); |
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377 |
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378 void visit (text_element_fontsize& e); |
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379 |
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380 void visit (text_element_fontname& e); |
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381 |
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382 void visit (text_element_fontstyle& e); |
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383 |
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384 void visit (text_element_symbol& e); |
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385 |
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386 void visit (text_element_combined& e); |
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387 |
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388 void reset (void); |
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389 |
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390 uint8NDArray get_pixels (void) const { return pixels; } |
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391 |
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392 Matrix get_boundingbox (void) const { return bbox; } |
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393 |
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394 uint8NDArray render (text_element *elt, Matrix& box, |
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395 int rotation = ROTATION_0); |
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396 |
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397 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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398 Matrix get_extent (const std::string& txt, double rotation, |
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399 const caseless_str& interpreter); |
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400 |
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401 void set_font (const std::string& name, const std::string& weight, |
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402 const std::string& angle, double size); |
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403 |
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404 void set_color (const Matrix& c); |
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405 |
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406 void set_mode (int m); |
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407 |
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408 void text_to_pixels (const std::string& txt, |
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409 uint8NDArray& pxls, Matrix& bbox, |
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410 int halign, int valign, double rotation, |
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411 const caseless_str& interpreter, |
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412 bool handle_rotation); |
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413 |
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414 private: |
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415 |
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416 int rotation_to_mode (double rotation) const; |
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417 |
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418 // Class to hold information about fonts and a strong |
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419 // reference to the font objects loaded by FreeType. |
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420 |
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421 class ft_font : public text_renderer::font |
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422 { |
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423 public: |
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424 |
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425 ft_font (void) |
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426 : text_renderer::font (), face (0) { } |
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427 |
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428 ft_font (const std::string& nm, const std::string& wt, |
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429 const std::string& ang, double sz, FT_Face f = 0) |
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430 : text_renderer::font (nm, wt, ang, sz), face (f) |
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431 { } |
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432 |
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433 ft_font (const ft_font& ft); |
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434 |
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435 ~ft_font (void) |
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436 { |
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437 if (face) |
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438 FT_Done_Face (face); |
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439 } |
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440 |
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441 ft_font& operator = (const ft_font& ft); |
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442 |
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443 bool is_valid (void) const { return get_face (); } |
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444 |
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445 FT_Face get_face (void) const; |
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446 |
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447 private: |
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448 |
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449 mutable FT_Face face; |
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450 }; |
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451 |
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452 void push_new_line (void); |
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453 |
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454 void update_line_bbox (void); |
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455 |
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456 void compute_bbox (void); |
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457 |
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458 int compute_line_xoffset (const Matrix& lb) const; |
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459 |
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460 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0); |
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461 |
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462 public: |
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463 |
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464 void text_to_strlist (const std::string& txt, |
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465 std::list<text_renderer::string>& lst, Matrix& bbox, |
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466 int halign, int valign, double rotation, |
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467 const caseless_str& interp); |
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468 |
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469 private: |
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470 |
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471 // The current font used by the renderer. |
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472 ft_font font; |
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473 |
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474 // Used to stored the bounding box corresponding to the rendered text. |
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475 // The bounding box has the form [x, y, w, h] where x and y represent the |
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476 // coordinates of the bottom left corner relative to the anchor point of |
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477 // the text (== start of text on the baseline). Due to font descent or |
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478 // multiple lines, the value y is usually negative. |
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479 Matrix bbox; |
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480 |
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481 // Used to stored the rendered text. It's a 3D matrix with size MxNx4 |
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482 // where M and N are the width and height of the bounding box. |
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483 uint8NDArray pixels; |
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484 |
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485 // Used to store the bounding box of each line. This is used to layout |
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486 // multiline text properly. |
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487 std::list<Matrix> line_bbox; |
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488 |
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489 // The current horizontal alignment. This is used to align multi-line text. |
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490 int halign; |
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491 |
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492 // The X offset for the next glyph. |
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493 int xoffset; |
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494 |
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495 // The Y offset of the baseline for the current line. |
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496 int line_yoffset; |
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497 |
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498 // The Y offset of the baseline for the next glyph. The offset is relative |
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499 // to line_yoffset. The total Y offset is computed with: |
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500 // line_yoffset + yoffset. |
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501 int yoffset; |
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502 |
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503 // The current mode of the rendering process (box computing or rendering). |
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504 int mode; |
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505 |
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506 // The base color of the rendered text. |
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507 uint8NDArray color; |
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508 |
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509 // A list of parsed strings to be used for printing. |
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510 std::list<text_renderer::string> strlist; |
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511 |
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512 // The X offset of the baseline for the current line. |
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513 int line_xoffset; |
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514 |
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515 }; |
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516 |
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517 void |
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518 ft_text_renderer::set_font (const std::string& name, const std::string& weight, |
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519 const std::string& angle, double size) |
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520 { |
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521 // FIXME: take "fontunits" into account |
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522 |
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523 font = ft_font (name, weight, angle, size, 0); |
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524 } |
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525 |
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526 void |
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527 ft_text_renderer::push_new_line (void) |
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528 { |
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529 switch (mode) |
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530 { |
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531 case MODE_BBOX: |
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532 { |
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533 // Create a new bbox entry based on the current font. |
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534 |
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535 FT_Face face = font.get_face (); |
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536 |
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537 if (face) |
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538 { |
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539 int asc = face->size->metrics.ascender >> 6; |
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540 int desc = face->size->metrics.descender >> 6; |
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541 int h = face->size->metrics.height >> 6; |
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542 |
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543 Matrix bb (1, 5, 0.0); |
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544 |
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545 bb(1) = desc; |
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546 bb(3) = asc - desc; |
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547 bb(4) = h; |
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548 |
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549 line_bbox.push_back (bb); |
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550 |
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551 xoffset = yoffset = 0; |
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552 } |
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553 } |
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554 break; |
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555 |
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556 case MODE_RENDER: |
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557 { |
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558 // Move to the next line bbox, adjust xoffset based on alignment |
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559 // and yoffset based on the old and new line bbox. |
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560 |
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561 Matrix old_bbox = line_bbox.front (); |
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562 line_bbox.pop_front (); |
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563 Matrix new_bbox = line_bbox.front (); |
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564 |
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565 xoffset = line_xoffset = compute_line_xoffset (new_bbox); |
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566 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3))); |
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567 yoffset = 0; |
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568 } |
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|
569 break; |
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|
570 } |
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571 } |
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|
572 |
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573 int |
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574 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const |
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575 { |
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576 if (! bbox.is_empty ()) |
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577 { |
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578 switch (halign) |
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579 { |
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580 case 0: |
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581 return 0; |
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582 case 1: |
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583 return (bbox(2) - lb(2)) / 2; |
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584 case 2: |
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585 return (bbox(2) - lb(2)); |
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586 } |
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587 } |
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588 |
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589 return 0; |
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590 } |
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changeset
|
591 |
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592 void |
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593 ft_text_renderer::compute_bbox (void) |
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594 { |
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595 // Stack the various line bbox together and compute the final |
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596 // bounding box for the entire text string. |
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597 |
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598 bbox = Matrix (); |
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599 |
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600 switch (line_bbox.size ()) |
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601 { |
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602 case 0: |
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|
603 break; |
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|
604 |
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changeset
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605 case 1: |
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606 bbox = line_bbox.front ().extract (0, 0, 0, 3); |
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607 break; |
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revamp text rendering classes
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608 |
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609 default: |
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|
610 for (const auto& lbox : line_bbox) |
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611 { |
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612 if (bbox.is_empty ()) |
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613 bbox = lbox.extract (0, 0, 0, 3); |
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614 else |
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615 { |
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616 bbox(1) -= lbox(3); |
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617 bbox(3) += lbox(3); |
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618 bbox(2) = octave::math::max (bbox(2), lbox(2)); |
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619 } |
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620 } |
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621 break; |
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622 } |
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623 } |
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revamp text rendering classes
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|
624 |
22331
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625 void |
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626 ft_text_renderer::update_line_bbox (void) |
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627 { |
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628 // Called after a font change, when in MODE_BBOX mode, to update the |
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629 // current line bbox with the new font metrics. This also includes the |
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630 // current yoffset, that is the offset of the current glyph's baseline |
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631 // the line's baseline. |
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632 |
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633 if (mode == MODE_BBOX) |
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634 { |
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635 int asc = font.get_face ()->size->metrics.ascender >> 6; |
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636 int desc = font.get_face ()->size->metrics.descender >> 6; |
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637 |
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638 Matrix& bb = line_bbox.back (); |
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639 |
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|
640 if ((yoffset + desc) < bb(1)) |
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641 { |
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changeset
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642 // The new font goes below the bottom of the current bbox. |
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|
643 |
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644 int delta = bb(1) - (yoffset + desc); |
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|
645 |
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646 bb(1) -= delta; |
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647 bb(3) += delta; |
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648 } |
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|
649 |
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650 if ((yoffset + asc) > (bb(1) + bb(3))) |
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|
651 { |
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652 // The new font goes above the top of the current bbox. |
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|
653 |
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|
654 int delta = (yoffset + asc) - (bb(1) + bb(3)); |
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revamp text rendering classes
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|
655 |
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656 bb(3) += delta; |
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657 } |
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changeset
|
658 } |
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changeset
|
659 } |
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|
660 |
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changeset
|
661 void |
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662 ft_text_renderer::set_mode (int m) |
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|
663 { |
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664 mode = m; |
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|
665 |
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|
666 switch (mode) |
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|
667 { |
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|
668 case MODE_BBOX: |
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|
669 xoffset = line_yoffset = yoffset = 0; |
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670 bbox = Matrix (1, 4, 0.0); |
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671 line_bbox.clear (); |
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|
672 push_new_line (); |
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|
673 break; |
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changeset
|
674 |
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|
675 case MODE_RENDER: |
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|
676 if (bbox.numel () != 4) |
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changeset
|
677 { |
22515
77b50a83ec11
Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
678 ::error ("ft_text_renderer: invalid bounding box, cannot render"); |
21209
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revamp text rendering classes
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|
679 |
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680 xoffset = line_yoffset = yoffset = 0; |
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|
681 pixels = uint8NDArray (); |
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|
682 } |
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changeset
|
683 else |
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changeset
|
684 { |
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|
685 dim_vector d (4, octave_idx_type (bbox(2)), |
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|
686 octave_idx_type (bbox(3))); |
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|
687 pixels = uint8NDArray (d, static_cast<uint8_t> (0)); |
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|
688 xoffset = compute_line_xoffset (line_bbox.front ()); |
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|
689 line_yoffset = -bbox(1)-1; |
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|
690 yoffset = 0; |
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changeset
|
691 } |
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diff
changeset
|
692 break; |
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diff
changeset
|
693 |
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changeset
|
694 default: |
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|
695 error ("ft_text_renderer: invalid mode '%d'", mode); |
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changeset
|
696 break; |
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diff
changeset
|
697 } |
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diff
changeset
|
698 } |
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diff
changeset
|
699 |
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changeset
|
700 FT_UInt |
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|
701 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous) |
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changeset
|
702 { |
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|
703 FT_Face face = font.get_face (); |
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|
704 FT_UInt glyph_index = 0; |
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changeset
|
705 |
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diff
changeset
|
706 if (face) |
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changeset
|
707 { |
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changeset
|
708 glyph_index = FT_Get_Char_Index (face, code); |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
709 |
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|
710 if (code != '\n' |
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|
711 && (! glyph_index |
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|
712 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))) |
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changeset
|
713 { |
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changeset
|
714 glyph_index = 0; |
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|
715 warn_missing_glyph (code); |
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changeset
|
716 } |
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diff
changeset
|
717 else |
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diff
changeset
|
718 { |
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changeset
|
719 switch (mode) |
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changeset
|
720 { |
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John W. Eaton <jwe@octave.org>
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changeset
|
721 case MODE_RENDER: |
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|
722 if (code == '\n') |
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diff
changeset
|
723 { |
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diff
changeset
|
724 glyph_index = FT_Get_Char_Index (face, ' '); |
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|
725 if (! glyph_index |
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John W. Eaton <jwe@octave.org>
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changeset
|
726 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
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changeset
|
727 { |
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changeset
|
728 glyph_index = 0; |
b81b08cc4c83
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changeset
|
729 warn_missing_glyph (' '); |
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diff
changeset
|
730 } |
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diff
changeset
|
731 else |
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diff
changeset
|
732 push_new_line (); |
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diff
changeset
|
733 } |
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diff
changeset
|
734 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL)) |
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diff
changeset
|
735 { |
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changeset
|
736 glyph_index = 0; |
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changeset
|
737 warn_glyph_render (code); |
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changeset
|
738 } |
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diff
changeset
|
739 else |
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diff
changeset
|
740 { |
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|
741 FT_Bitmap& bitmap = face->glyph->bitmap; |
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742 int x0, y0; |
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|
743 |
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|
744 if (previous) |
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|
745 { |
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|
746 FT_Vector delta; |
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|
747 |
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|
748 FT_Get_Kerning (face, previous, glyph_index, |
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|
749 FT_KERNING_DEFAULT, &delta); |
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750 xoffset += (delta.x >> 6); |
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751 } |
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|
752 |
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|
753 x0 = xoffset + face->glyph->bitmap_left; |
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|
754 y0 = line_yoffset + yoffset + face->glyph->bitmap_top; |
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|
755 |
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|
756 // 'w' seems to have a negative -1 |
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|
757 // face->glyph->bitmap_left, this is so we don't |
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|
758 // index out of bound, and assumes we've allocated |
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|
759 // the right amount of horizontal space in the bbox. |
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|
760 if (x0 < 0) |
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761 x0 = 0; |
21209
67d2965af0b5
revamp text rendering classes
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diff
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|
762 |
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|
763 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++) |
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|
764 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++) |
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|
765 { |
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|
766 unsigned char pix = bitmap.buffer[r*bitmap.width+c]; |
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|
767 if (x0+c < 0 || x0+c >= pixels.dim2 () |
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768 || y0-r < 0 || y0-r >= pixels.dim3 ()) |
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769 { |
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|
770 //::warning ("ft_text_renderer: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)", |
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|
771 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ()); |
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|
772 } |
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|
773 else if (pixels(3, x0+c, y0-r).value () == 0) |
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|
774 { |
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|
775 pixels(0, x0+c, y0-r) = color(0); |
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|
776 pixels(1, x0+c, y0-r) = color(1); |
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maint: Indent namespaces in more files.
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|
777 pixels(2, x0+c, y0-r) = color(2); |
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maint: Indent namespaces in more files.
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|
778 pixels(3, x0+c, y0-r) = pix; |
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diff
changeset
|
779 } |
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diff
changeset
|
780 } |
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diff
changeset
|
781 |
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changeset
|
782 xoffset += (face->glyph->advance.x >> 6); |
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maint: Indent namespaces in more files.
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|
783 } |
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changeset
|
784 break; |
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diff
changeset
|
785 |
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diff
changeset
|
786 case MODE_BBOX: |
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maint: Indent namespaces in more files.
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|
787 if (code == '\n') |
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changeset
|
788 { |
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changeset
|
789 glyph_index = FT_Get_Char_Index (face, ' '); |
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|
790 if (! glyph_index |
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791 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
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changeset
|
792 { |
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changeset
|
793 glyph_index = 0; |
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794 warn_missing_glyph (' '); |
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|
795 } |
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diff
changeset
|
796 else |
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changeset
|
797 push_new_line (); |
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changeset
|
798 } |
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|
799 else |
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diff
changeset
|
800 { |
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maint: Indent namespaces in more files.
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changeset
|
801 Matrix& bb = line_bbox.back (); |
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maint: Indent namespaces in more files.
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diff
changeset
|
802 |
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changeset
|
803 // If we have a previous glyph, use kerning information. |
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|
804 // This usually means moving a bit backward before adding |
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diff
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|
805 // the next glyph. That is, "delta.x" is usually < 0. |
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changeset
|
806 if (previous) |
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diff
changeset
|
807 { |
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|
808 FT_Vector delta; |
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diff
changeset
|
809 |
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maint: Indent namespaces in more files.
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changeset
|
810 FT_Get_Kerning (face, previous, glyph_index, |
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diff
changeset
|
811 FT_KERNING_DEFAULT, &delta); |
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diff
changeset
|
812 |
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changeset
|
813 xoffset += (delta.x >> 6); |
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diff
changeset
|
814 } |
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67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
815 |
22331
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816 // Extend current X offset box by the width of the current |
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maint: Indent namespaces in more files.
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|
817 // glyph. Then extend the line bounding box if necessary. |
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|
818 |
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changeset
|
819 xoffset += (face->glyph->advance.x >> 6); |
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changeset
|
820 bb(2) = octave::math::max (bb(2), xoffset); |
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|
821 } |
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|
822 break; |
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|
823 } |
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diff
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|
824 } |
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changeset
|
825 } |
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changeset
|
826 |
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|
827 return glyph_index; |
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|
828 } |
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changeset
|
829 |
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changeset
|
830 void |
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changeset
|
831 ft_text_renderer::text_to_strlist (const std::string& txt, |
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832 std::list<text_renderer::string>& lst, |
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|
833 Matrix& box, |
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changeset
|
834 int ha, int va, double rot, |
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835 const caseless_str& interp) |
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836 { |
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|
837 uint8NDArray pxls; |
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|
838 |
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changeset
|
839 // First run text_to_pixels which will also build the string list |
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|
840 |
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changeset
|
841 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false); |
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|
842 |
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|
843 lst = strlist; |
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844 } |
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|
845 |
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changeset
|
846 void |
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changeset
|
847 ft_text_renderer::visit (text_element_string& e) |
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|
848 { |
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changeset
|
849 if (font.is_valid ()) |
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|
850 { |
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changeset
|
851 FT_UInt glyph_index, previous = 0; |
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|
852 |
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changeset
|
853 std::string str = e.string_value (); |
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|
854 size_t n = str.length (); |
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|
855 size_t curr = 0; |
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856 size_t idx = 0; |
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|
857 mbstate_t ps; |
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|
858 memset (&ps, 0, sizeof (ps)); // Initialize state to 0. |
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|
859 wchar_t wc; |
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diff
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|
860 |
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|
861 text_renderer::string fs (str, font, xoffset, yoffset); |
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|
862 |
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863 while (n > 0) |
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864 { |
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865 size_t r = std::mbrtowc (&wc, str.data () + curr, n, &ps); |
21209
67d2965af0b5
revamp text rendering classes
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diff
changeset
|
866 |
22331
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|
867 if (r > 0 |
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|
868 && r != static_cast<size_t> (-1) |
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869 && r != static_cast<size_t> (-2)) |
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|
870 { |
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871 n -= r; |
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|
872 curr += r; |
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|
873 |
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changeset
|
874 if (wc == L'\n') |
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|
875 { |
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|
876 // Finish previous string in srtlist before processing |
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|
877 // the newline character |
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changeset
|
878 fs.set_y (line_yoffset + yoffset); |
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|
879 fs.set_color (color); |
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|
880 std::string s = str.substr (idx, curr - idx - 1); |
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changeset
|
881 if (! s.empty ()) |
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changeset
|
882 { |
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changeset
|
883 fs.set_string (s); |
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changeset
|
884 strlist.push_back (fs); |
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|
885 } |
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changeset
|
886 } |
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changeset
|
887 |
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changeset
|
888 glyph_index = process_character (wc, previous); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
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21200
diff
changeset
|
889 |
22331
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changeset
|
890 if (wc == L'\n') |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
891 { |
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changeset
|
892 previous = 0; |
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diff
changeset
|
893 // Start a new string in strlist |
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changeset
|
894 idx = curr; |
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|
895 fs = text_renderer::string (str.substr (idx), font, |
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maint: Indent namespaces in more files.
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|
896 line_xoffset, yoffset); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
897 |
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changeset
|
898 } |
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changeset
|
899 else |
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maint: Indent namespaces in more files.
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changeset
|
900 previous = glyph_index; |
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changeset
|
901 } |
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maint: Indent namespaces in more files.
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changeset
|
902 else |
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diff
changeset
|
903 { |
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diff
changeset
|
904 if (r != 0) |
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diff
changeset
|
905 ::warning ("ft_text_renderer: failed to decode string `%s' with " |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
906 "locale `%s'", str.c_str (), |
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maint: Indent namespaces in more files.
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changeset
|
907 std::setlocale (LC_CTYPE, 0)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
908 break; |
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diff
changeset
|
909 } |
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diff
changeset
|
910 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
911 |
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diff
changeset
|
912 if (! fs.get_string ().empty ()) |
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maint: Indent namespaces in more files.
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diff
changeset
|
913 { |
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parents:
22326
diff
changeset
|
914 fs.set_y (line_yoffset + yoffset); |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
915 fs.set_color (color); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
916 strlist.push_back (fs); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
917 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
918 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
919 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
920 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
921 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
922 ft_text_renderer::visit (text_element_list& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
923 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
924 // 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
|
925 |
22331
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diff
changeset
|
926 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
927 uint8NDArray saved_color (color); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
928 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
929 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
930 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
931 font = saved_font; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
932 color = saved_color; |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
933 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
934 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
935 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
936 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
|
937 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
938 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
939 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
940 int saved_yoffset = yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
941 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
942 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
943 font.get_size () - 2); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
944 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
945 if (font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
946 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
947 int h = font.get_face ()->size->metrics.height >> 6; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
948 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
949 // Shifting the baseline by 2/3 the font height seems to produce |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
950 // decent result. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
951 yoffset -= (h * 2) / 3; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
952 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
953 if (mode == MODE_BBOX) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
954 update_line_bbox (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
955 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
956 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
957 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
958 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
959 font = saved_font; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
960 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
961 // cannot be restored, because the saved value is not relevant anymore. |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
962 if (line_yoffset == saved_line_yoffset) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
963 yoffset = saved_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
964 } |
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.
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parents:
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diff
changeset
|
966 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
967 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
|
968 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
969 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
970 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
971 int saved_yoffset = yoffset; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
972 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
973 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
974 font.get_size () - 2); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
975 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
976 if (saved_font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
977 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
978 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
979 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
980 // Shifting the baseline by 2/3 base font ascender seems to produce |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
981 // decent result. |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
982 yoffset += (s_asc * 2) / 3; |
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983 |
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984 if (mode == MODE_BBOX) |
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985 update_line_bbox (); |
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986 } |
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|
987 |
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988 text_processor::visit (e); |
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|
989 |
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990 font = saved_font; |
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991 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
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992 // cannot be restored, because the saved value is not relevant anymore. |
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993 if (line_yoffset == saved_line_yoffset) |
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|
994 yoffset = saved_yoffset; |
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diff
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|
995 } |
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996 |
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997 void |
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998 ft_text_renderer::visit (text_element_color& e) |
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|
999 { |
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1000 if (mode == MODE_RENDER) |
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1001 set_color (e.get_color ()); |
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1002 } |
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changeset
|
1003 |
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|
1004 void |
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changeset
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1005 ft_text_renderer::visit (text_element_fontsize& e) |
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|
1006 { |
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diff
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1007 double sz = e.get_fontsize (); |
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1008 |
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1009 // FIXME: Matlab documentation says that the font size is expressed |
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1010 // in the text object FontUnit. |
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1011 |
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|
1012 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz); |
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|
1013 |
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1014 if (mode == MODE_BBOX) |
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|
1015 update_line_bbox (); |
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|
1016 } |
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|
1017 |
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|
1018 void |
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|
1019 ft_text_renderer::visit (text_element_fontname& e) |
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|
1020 { |
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|
1021 set_font (e.get_fontname (), font.get_weight (), font.get_angle (), |
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|
1022 font.get_size ()); |
21209
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revamp text rendering classes
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diff
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|
1023 |
22331
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1024 if (mode == MODE_BBOX) |
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|
1025 update_line_bbox (); |
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|
1026 } |
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diff
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|
1027 |
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changeset
|
1028 void |
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|
1029 ft_text_renderer::visit (text_element_fontstyle& e) |
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|
1030 { |
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changeset
|
1031 switch (e.get_fontstyle ()) |
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changeset
|
1032 { |
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|
1033 case text_element_fontstyle::normal: |
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|
1034 set_font (font.get_name (), "normal", "normal", font.get_size ()); |
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maint: Indent namespaces in more files.
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|
1035 break; |
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changeset
|
1036 |
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diff
changeset
|
1037 case text_element_fontstyle::bold: |
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|
1038 set_font (font.get_name (), "bold", "normal", font.get_size ()); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1039 break; |
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maint: Indent namespaces in more files.
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diff
changeset
|
1040 |
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|
1041 case text_element_fontstyle::italic: |
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John W. Eaton <jwe@octave.org>
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|
1042 set_font (font.get_name (), "normal", "italic", font.get_size ()); |
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diff
changeset
|
1043 break; |
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diff
changeset
|
1044 |
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changeset
|
1045 case text_element_fontstyle::oblique: |
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John W. Eaton <jwe@octave.org>
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|
1046 set_font (font.get_name (), "normal", "oblique", font.get_size ()); |
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maint: Indent namespaces in more files.
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changeset
|
1047 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1048 } |
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diff
changeset
|
1049 |
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changeset
|
1050 if (mode == MODE_BBOX) |
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changeset
|
1051 update_line_bbox (); |
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changeset
|
1052 } |
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parents:
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diff
changeset
|
1053 |
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maint: Indent namespaces in more files.
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diff
changeset
|
1054 void |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1055 ft_text_renderer::visit (text_element_symbol& e) |
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diff
changeset
|
1056 { |
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diff
changeset
|
1057 uint32_t code = e.get_symbol_code (); |
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diff
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|
1058 |
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maint: Indent namespaces in more files.
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diff
changeset
|
1059 text_renderer::string fs (std::string ("-"), font, xoffset, yoffset); |
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maint: Indent namespaces in more files.
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diff
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|
1060 |
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maint: Indent namespaces in more files.
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diff
changeset
|
1061 if (code != text_element_symbol::invalid_code && font.is_valid ()) |
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diff
changeset
|
1062 { |
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parents:
22326
diff
changeset
|
1063 process_character (code); |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1064 fs.set_code (code); |
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diff
changeset
|
1065 } |
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diff
changeset
|
1066 else if (font.is_valid ()) |
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changeset
|
1067 ::warning ("ignoring unknown symbol: %d", e.get_symbol ()); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1068 |
22331
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changeset
|
1069 if (fs.get_code ()) |
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diff
changeset
|
1070 { |
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diff
changeset
|
1071 fs.set_y (line_yoffset + yoffset); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1072 fs.set_color (color); |
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maint: Indent namespaces in more files.
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|
1073 strlist.push_back (fs); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1074 } |
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diff
changeset
|
1075 } |
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changeset
|
1076 |
b81b08cc4c83
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diff
changeset
|
1077 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1078 ft_text_renderer::visit (text_element_combined& e) |
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diff
changeset
|
1079 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1080 int saved_xoffset = xoffset; |
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diff
changeset
|
1081 int max_xoffset = xoffset; |
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diff
changeset
|
1082 |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
1083 for (auto *txt_elt : e) |
22331
b81b08cc4c83
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diff
changeset
|
1084 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1085 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
|
1086 txt_elt->accept (*this); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1087 max_xoffset = octave::math::max (xoffset, max_xoffset); |
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diff
changeset
|
1088 } |
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diff
changeset
|
1089 |
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changeset
|
1090 xoffset = max_xoffset; |
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maint: Indent namespaces in more files.
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diff
changeset
|
1091 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1092 |
22331
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1093 void |
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maint: Indent namespaces in more files.
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diff
changeset
|
1094 ft_text_renderer::reset (void) |
b81b08cc4c83
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diff
changeset
|
1095 { |
b81b08cc4c83
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parents:
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diff
changeset
|
1096 set_mode (MODE_BBOX); |
b81b08cc4c83
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changeset
|
1097 set_color (Matrix (1, 3, 0.0)); |
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diff
changeset
|
1098 } |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1099 |
22331
b81b08cc4c83
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diff
changeset
|
1100 void |
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maint: Indent namespaces in more files.
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diff
changeset
|
1101 ft_text_renderer::set_color (const Matrix& c) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1102 { |
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1103 if (c.numel () == 3) |
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1104 { |
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1105 color(0) = static_cast<uint8_t> (c(0)*255); |
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1106 color(1) = static_cast<uint8_t> (c(1)*255); |
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1107 color(2) = static_cast<uint8_t> (c(2)*255); |
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1108 } |
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1109 else |
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1110 ::warning ("ft_text_renderer::set_color: invalid color"); |
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1111 } |
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1112 |
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1113 uint8NDArray |
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1114 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation) |
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1115 { |
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1116 set_mode (MODE_BBOX); |
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1117 elt->accept (*this); |
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1118 compute_bbox (); |
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1119 box = bbox; |
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1120 |
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1121 set_mode (MODE_RENDER); |
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1122 // Clear the list of parsed strings |
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1123 strlist.clear (); |
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1124 |
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1125 if (pixels.numel () > 0) |
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1126 { |
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|
1127 elt->accept (*this); |
21209
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revamp text rendering classes
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21200
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|
1128 |
22331
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1129 switch (rotation) |
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1130 { |
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1131 case ROTATION_0: |
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1132 break; |
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1133 |
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1134 case ROTATION_90: |
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1135 { |
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1136 Array<octave_idx_type> perm (dim_vector (3, 1)); |
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1137 perm(0) = 0; |
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1138 perm(1) = 2; |
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|
1139 perm(2) = 1; |
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1140 pixels = pixels.permute (perm); |
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1141 |
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1142 Array<idx_vector> idx (dim_vector (3, 1)); |
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1143 idx(0) = idx_vector (':'); |
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1144 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
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1145 idx(2) = idx_vector (':'); |
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1146 pixels = uint8NDArray (pixels.index (idx)); |
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1147 } |
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|
1148 break; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
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|
1149 |
22331
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1150 case ROTATION_180: |
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1151 { |
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1152 Array<idx_vector> idx (dim_vector (3, 1)); |
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1153 idx(0) = idx_vector (':'); |
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1154 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
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1155 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
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|
1156 pixels = uint8NDArray (pixels.index (idx)); |
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1157 } |
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|
1158 break; |
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|
1159 |
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1160 case ROTATION_270: |
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|
1161 { |
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1162 Array<octave_idx_type> perm (dim_vector (3, 1)); |
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1163 perm(0) = 0; |
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1164 perm(1) = 2; |
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1165 perm(2) = 1; |
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1166 pixels = pixels.permute (perm); |
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1167 |
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1168 Array<idx_vector> idx (dim_vector (3, 1)); |
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1169 idx(0) = idx_vector (':'); |
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1170 idx(1) = idx_vector (':'); |
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1171 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
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1172 pixels = uint8NDArray (pixels.index (idx)); |
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1173 } |
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|
1174 break; |
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|
1175 } |
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|
1176 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1177 |
22331
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|
1178 return pixels; |
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|
1179 } |
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|
1180 |
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1181 // Note: |
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1182 // x-extent accurately measures width of glyphs. |
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1183 // y-extent is overly large because it is measured from baseline-to-baseline. |
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|
1184 // Calling routines, such as ylabel, may need to account for this mismatch. |
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1185 |
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|
1186 Matrix |
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|
1187 ft_text_renderer::get_extent (text_element *elt, double rotation) |
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|
1188 { |
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|
1189 set_mode (MODE_BBOX); |
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|
1190 elt->accept (*this); |
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|
1191 compute_bbox (); |
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|
1192 |
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1193 Matrix extent (1, 2, 0.0); |
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1194 |
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1195 switch (rotation_to_mode (rotation)) |
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1196 { |
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1197 case ROTATION_0: |
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1198 case ROTATION_180: |
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1199 extent(0) = bbox(2); |
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1200 extent(1) = bbox(3); |
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|
1201 break; |
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|
1202 |
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1203 case ROTATION_90: |
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1204 case ROTATION_270: |
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|
1205 extent(0) = bbox(3); |
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1206 extent(1) = bbox(2); |
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changeset
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1207 } |
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changeset
|
1208 |
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|
1209 return extent; |
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|
1210 } |
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|
1211 |
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|
1212 Matrix |
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|
1213 ft_text_renderer::get_extent (const std::string& txt, double rotation, |
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|
1214 const caseless_str& interpreter) |
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|
1215 { |
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|
1216 text_element *elt = text_parser::parse (txt, interpreter); |
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1217 Matrix extent = get_extent (elt, rotation); |
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|
1218 delete elt; |
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|
1219 |
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changeset
|
1220 return extent; |
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|
1221 } |
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|
1222 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1223 int |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1224 ft_text_renderer::rotation_to_mode (double rotation) const |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1225 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1226 // Clip rotation to range [0, 360] |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1227 while (rotation < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1228 rotation += 360.0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1229 while (rotation > 360.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1230 rotation -= 360.0; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1231 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1232 if (rotation == 0.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1233 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1234 else if (rotation == 90.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1235 return ROTATION_90; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1236 else if (rotation == 180.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1237 return ROTATION_180; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1238 else if (rotation == 270.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1239 return ROTATION_270; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1240 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1241 return ROTATION_0; |
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 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1244 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1245 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
|
1246 uint8NDArray& pxls, Matrix& box, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1247 int _halign, int valign, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1248 const caseless_str& interpreter, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1249 bool handle_rotation) |
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 int rot_mode = rotation_to_mode (rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1252 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1253 halign = _halign; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1254 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1255 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
|
1256 pxls = render (elt, box, rot_mode); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1257 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1258 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1259 if (pxls.is_empty ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1260 return; // nothing to render |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1261 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1262 switch (halign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1263 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1264 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1265 box(0) = -box(2)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1266 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1267 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1268 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1269 box(0) = -box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1270 break; |
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 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1273 box(0) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1274 break; |
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 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1277 switch (valign) |
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 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1280 box(1) = -box(3)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1281 break; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1282 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1283 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1284 box(1) = -box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1285 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1286 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1287 case 3: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1288 break; |
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 case 4: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1291 box(1) = -box(3)-box(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1292 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1293 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1294 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1295 box(1) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1296 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1297 } |
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 if (handle_rotation) |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1300 { |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1301 switch (rot_mode) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1302 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1303 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1304 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1305 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1306 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1307 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1308 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1309 case ROTATION_180: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1310 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1311 box(1) = -box(1)-box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1312 break; |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
1313 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1314 case ROTATION_270: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1315 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1316 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1317 box(1) = -box(1)-box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1318 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1319 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1320 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1321 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1322 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1323 ft_text_renderer::ft_font::ft_font (const ft_font& ft) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1324 : text_renderer::font (ft), face (0) |
b81b08cc4c83
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parents:
22326
diff
changeset
|
1325 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1326 #if defined (HAVE_FT_REFERENCE_FACE) |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1327 FT_Face ft_face = ft.get_face (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1328 |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1329 if (ft_face && FT_Reference_Face (ft_face) == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1330 face = ft_face; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1331 #endif |
b81b08cc4c83
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diff
changeset
|
1332 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1333 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1334 ft_text_renderer::ft_font& |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1335 ft_text_renderer::ft_font::operator = (const ft_font& ft) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1336 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1337 if (&ft != this) |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1338 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1339 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
|
1340 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1341 if (face) |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1342 { |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1343 FT_Done_Face (face); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1344 face = 0; |
17787
175b392e91fe
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|
1345 } |
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1346 |
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John W. Eaton <jwe@octave.org>
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1347 #if defined (HAVE_FT_REFERENCE_FACE) |
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1348 FT_Face ft_face = ft.get_face (); |
17330
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|
1349 |
22331
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1350 if (ft_face && FT_Reference_Face (ft_face) == 0) |
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|
1351 face = ft_face; |
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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diff
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|
1352 #endif |
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|
1353 } |
17330
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1354 |
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1355 return *this; |
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|
1356 } |
17330
219552139c18
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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|
1357 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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|
1358 FT_Face |
b81b08cc4c83
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changeset
|
1359 ft_text_renderer::ft_font::get_face (void) const |
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|
1360 { |
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parents:
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changeset
|
1361 if (! face && ! name.empty ()) |
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parents:
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|
1362 { |
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parents:
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|
1363 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
|
1364 |
22331
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John W. Eaton <jwe@octave.org>
parents:
22326
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|
1365 if (face) |
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parents:
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|
1366 { |
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parents:
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|
1367 if (FT_Set_Char_Size (face, 0, size*64, 0, 0)) |
b81b08cc4c83
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|
1368 ::warning ("ft_text_renderer: unable to set font size to %g", size); |
b81b08cc4c83
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parents:
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|
1369 } |
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parents:
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changeset
|
1370 else |
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parents:
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changeset
|
1371 ::warning ("ft_text_renderer: unable to load appropriate font"); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
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|
1372 } |
17330
219552139c18
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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|
1373 |
22331
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1374 return face; |
b81b08cc4c83
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diff
changeset
|
1375 } |
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John W. Eaton <jwe@octave.org>
parents:
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|
1376 } |
71dd9d5a5ecd
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parents:
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diff
changeset
|
1377 |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1378 #endif |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1379 |
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John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1380 namespace octave |
21209
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John W. Eaton <jwe@octave.org>
parents:
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|
1381 { |
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John W. Eaton <jwe@octave.org>
parents:
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|
1382 base_text_renderer * |
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1383 make_ft_text_renderer (void) |
71dd9d5a5ecd
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parents:
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|
1384 { |
21209
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John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1385 #if defined (HAVE_FREETYPE) |
22326
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parents:
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diff
changeset
|
1386 return new ft_text_renderer (); |
21209
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John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1387 #else |
22326
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1388 return 0; |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1389 #endif |
22326
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John W. Eaton <jwe@octave.org>
parents:
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|
1390 } |
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1391 } |