Mercurial > octave
annotate libinterp/corefcn/txt-eng-ft.cc @ 17898:8c33abdd2f9a
maint: Avoid using NULL in C++ code.
* qtinfo/parser.cc, profiler.cc, profiler.h, txt-eng-ft.cc,
__init_fltk__.cc, ov-fcn-handle.cc, ov-java.cc, mkoctfile.in.cc:
Avoid using NULL in C++ code.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 11 Nov 2013 01:49:57 -0500 |
parents | 175b392e91fe |
children | 6a71e5030df5 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2009-2013 Michael Goffioul |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #if defined (HAVE_FREETYPE) |
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28 |
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29 #if defined (HAVE_FONTCONFIG) |
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30 #include <fontconfig/fontconfig.h> |
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31 #endif |
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32 |
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33 #include <clocale> |
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34 #include <cwchar> |
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35 #include <iostream> |
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36 #include <map> |
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37 #include <utility> |
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38 |
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39 #include "singleton-cleanup.h" |
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40 |
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41 #include "error.h" |
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42 #include "pr-output.h" |
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43 #include "txt-eng-ft.h" |
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44 |
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45 // FIXME: maybe issue at most one warning per glyph/font/size/weight |
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46 // combination. |
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47 |
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48 static void |
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49 gripe_missing_glyph (FT_ULong c) |
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50 { |
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51 warning_with_id ("Octave:missing-glyph", |
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52 "ft_render: skipping missing glyph for character '%x'", |
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53 c); |
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54 } |
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55 |
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56 static void |
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57 gripe_glyph_render (FT_ULong c) |
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58 { |
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59 warning_with_id ("Octave:glyph-render", |
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60 "ft_render: unable to render glyph for character '%x'", |
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61 c); |
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62 } |
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63 |
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64 #ifdef _MSC_VER |
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65 // This is just a trick to avoid multiple symbol definitions. |
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66 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type> |
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67 // that will cause MSVC not to generate a new instantiation and |
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68 // use the imported one instead. |
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69 #include "PermMatrix.h" |
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70 #endif |
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71 |
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72 // Forward declaration |
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73 static void ft_face_destroyed (void* object); |
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74 |
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75 class |
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76 ft_manager |
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77 { |
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78 public: |
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79 static bool instance_ok (void) |
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80 { |
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81 bool retval = true; |
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82 |
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83 if (! instance) |
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84 { |
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85 instance = new ft_manager (); |
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86 |
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87 if (instance) |
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88 singleton_cleanup_list::add (cleanup_instance); |
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89 } |
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90 |
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91 if (! instance) |
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92 { |
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93 ::error ("unable to create ft_manager!"); |
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94 |
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95 retval = false; |
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96 } |
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97 |
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98 return retval; |
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99 } |
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100 |
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101 static void cleanup_instance (void) { delete instance; instance = 0; } |
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102 |
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103 static FT_Face get_font (const std::string& name, const std::string& weight, |
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104 const std::string& angle, double size) |
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105 { |
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106 return (instance_ok () |
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107 ? instance->do_get_font (name, weight, angle, size) |
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108 : 0); |
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109 } |
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110 |
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111 static void font_destroyed (FT_Face face) |
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112 { |
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113 if (instance_ok ()) |
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114 instance->do_font_destroyed (face); |
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115 } |
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116 |
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117 private: |
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118 |
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119 static ft_manager *instance; |
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120 |
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121 typedef std::pair<std::string, double> ft_key; |
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122 typedef std::map<ft_key, FT_Face> ft_cache; |
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123 |
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124 // Cache the fonts loaded by freetype. This cache only contains |
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125 // weak references to the fonts, strong references are only present |
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126 // in class ft_render. |
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127 ft_cache cache; |
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128 |
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129 private: |
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130 |
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131 // No copying! |
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132 |
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133 ft_manager (const ft_manager&); |
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134 |
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135 ft_manager& operator = (const ft_manager&); |
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136 |
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137 ft_manager (void) |
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138 : library (), freetype_initialized (false), fontconfig_initialized (false) |
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139 { |
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140 if (FT_Init_FreeType (&library)) |
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141 ::error ("unable to initialize freetype library"); |
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142 else |
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143 freetype_initialized = true; |
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144 |
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145 #if defined (HAVE_FONTCONFIG) |
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146 if (! FcInit ()) |
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147 ::error ("unable to initialize fontconfig library"); |
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148 else |
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149 fontconfig_initialized = true; |
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150 #endif |
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151 } |
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152 |
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153 ~ft_manager (void) |
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154 { |
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155 if (freetype_initialized) |
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156 FT_Done_FreeType (library); |
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157 |
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158 #if defined (HAVE_FONTCONFIG) |
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159 // FIXME: Skip the call to FcFini because it can trigger the assertion |
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160 // |
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161 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed. |
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162 // |
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163 // if (fontconfig_initialized) |
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164 // FcFini (); |
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165 #endif |
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166 } |
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167 |
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168 |
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169 FT_Face do_get_font (const std::string& name, const std::string& weight, |
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170 const std::string& angle, double size) |
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171 { |
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172 FT_Face retval = 0; |
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173 |
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174 #if HAVE_FT_REFERENCE_FACE |
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175 // Look first into the font cache, then use fontconfig. If the font |
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176 // is present in the cache, simply add a reference and return it. |
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177 |
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178 ft_key key (name + ":" + weight + ":" + angle, size); |
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179 ft_cache::const_iterator it = cache.find (key); |
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180 |
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181 if (it != cache.end ()) |
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182 { |
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183 FT_Reference_Face (it->second); |
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184 return it->second; |
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185 } |
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186 #endif |
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187 |
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188 std::string file; |
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189 |
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190 #if defined (HAVE_FONTCONFIG) |
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191 if (fontconfig_initialized) |
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192 { |
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193 int fc_weight, fc_angle; |
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194 |
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195 if (weight == "bold") |
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196 fc_weight = FC_WEIGHT_BOLD; |
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197 else if (weight == "light") |
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198 fc_weight = FC_WEIGHT_LIGHT; |
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199 else if (weight == "demi") |
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200 fc_weight = FC_WEIGHT_DEMIBOLD; |
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201 else |
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202 fc_weight = FC_WEIGHT_NORMAL; |
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203 |
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204 if (angle == "italic") |
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205 fc_angle = FC_SLANT_ITALIC; |
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206 else if (angle == "oblique") |
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207 fc_angle = FC_SLANT_OBLIQUE; |
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208 else |
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209 fc_angle = FC_SLANT_ROMAN; |
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210 |
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211 FcPattern *pat = FcPatternCreate (); |
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212 |
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213 FcPatternAddString (pat, FC_FAMILY, |
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214 (reinterpret_cast<const FcChar8*> |
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215 (name == "*" ? "sans" : name.c_str ()))); |
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216 |
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217 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight); |
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218 FcPatternAddInteger (pat, FC_SLANT, fc_angle); |
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219 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size); |
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220 |
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221 if (FcConfigSubstitute (0, pat, FcMatchPattern)) |
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222 { |
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223 FcResult res; |
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224 FcPattern *match; |
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225 |
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226 FcDefaultSubstitute (pat); |
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227 match = FcFontMatch (0, pat, &res); |
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229 // FIXME: originally, this test also required that |
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230 // res != FcResultNoMatch. Is that really needed? |
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231 if (match) |
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232 { |
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233 unsigned char *tmp; |
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234 |
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235 FcPatternGetString (match, FC_FILE, 0, &tmp); |
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236 file = reinterpret_cast<char*> (tmp); |
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237 } |
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238 else |
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239 ::warning ("could not match any font: %s-%s-%s-%g", |
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240 name.c_str (), weight.c_str (), angle.c_str (), |
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241 size); |
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242 |
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243 if (match) |
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244 FcPatternDestroy (match); |
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245 } |
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246 |
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247 FcPatternDestroy (pat); |
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248 } |
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249 #endif |
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250 |
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251 if (file.empty ()) |
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252 { |
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253 #ifdef __WIN32__ |
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254 file = "C:/WINDOWS/Fonts/verdana.ttf"; |
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255 #else |
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256 // FIXME: find a "standard" font for UNIX platforms |
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257 #endif |
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258 } |
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259 |
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260 if (! file.empty ()) |
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261 { |
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262 if (FT_New_Face (library, file.c_str (), 0, &retval)) |
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263 ::warning ("ft_manager: unable to load font: %s", file.c_str ()); |
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264 #if HAVE_FT_REFERENCE_FACE |
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265 else |
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266 { |
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267 // Install a finalizer to notify ft_manager that the font is |
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268 // being destroyed. The class ft_manager only keeps weak |
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269 // references to font objects. |
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270 |
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271 retval->generic.data = new ft_key (key); |
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272 retval->generic.finalizer = ft_face_destroyed; |
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273 |
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274 // Insert loaded font into the cache. |
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275 |
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276 cache[key] = retval; |
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277 } |
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278 #endif |
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279 } |
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280 |
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281 return retval; |
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282 } |
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283 |
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284 void do_font_destroyed (FT_Face face) |
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285 { |
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286 if (face->generic.data) |
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287 { |
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288 ft_key* pkey = reinterpret_cast<ft_key*> (face->generic.data); |
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289 |
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290 cache.erase (*pkey); |
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291 delete pkey; |
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292 face->generic.data = 0; |
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293 } |
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294 } |
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295 |
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296 private: |
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297 FT_Library library; |
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298 bool freetype_initialized; |
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299 bool fontconfig_initialized; |
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300 }; |
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301 |
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302 ft_manager* ft_manager::instance = 0; |
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303 |
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304 static void |
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305 ft_face_destroyed (void* object) |
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306 { ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object)); } |
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307 |
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308 // --------------------------------------------------------------------------- |
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309 |
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310 ft_render::ft_render (void) |
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311 : text_processor (), font (), bbox (1, 4, 0.0), halign (0), xoffset (0), |
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312 line_yoffset (0), yoffset (0), mode (MODE_BBOX), |
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313 color (dim_vector (1, 3), 0) |
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314 { |
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315 } |
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316 |
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317 ft_render::~ft_render (void) |
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318 { |
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319 } |
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320 |
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321 void |
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322 ft_render::set_font (const std::string& name, const std::string& weight, |
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323 const std::string& angle, double size) |
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324 { |
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325 // FIXME: take "fontunits" into account |
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326 |
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327 font = ft_font (name, weight, angle, size, 0); |
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328 } |
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329 |
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330 void |
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331 ft_render::push_new_line (void) |
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332 { |
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333 switch (mode) |
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334 { |
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335 case MODE_BBOX: |
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336 { |
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337 // Create a new bbox entry based on the current font. |
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338 |
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339 FT_Face face = font.get_face (); |
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340 |
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341 if (face) |
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342 { |
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343 int asc = face->size->metrics.ascender >> 6; |
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344 int desc = face->size->metrics.descender >> 6; |
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345 int h = face->size->metrics.height >> 6; |
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346 |
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347 Matrix bb (1, 5, 0.0); |
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348 |
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349 bb(1) = desc; |
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350 bb(3) = asc - desc; |
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351 bb(4) = h; |
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352 |
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353 line_bbox.push_back (bb); |
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354 |
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355 xoffset = yoffset = 0; |
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356 } |
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357 } |
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358 break; |
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359 |
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360 case MODE_RENDER: |
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361 { |
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362 // Move to the next line bbox, adjust xoffset based on alignment |
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363 // and yoffset based on the old and new line bbox. |
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364 |
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365 Matrix old_bbox = line_bbox.front (); |
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366 line_bbox.pop_front (); |
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367 Matrix new_bbox = line_bbox.front (); |
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368 |
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369 xoffset = compute_line_xoffset (new_bbox); |
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370 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3))); |
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371 yoffset = 0; |
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372 } |
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373 break; |
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374 } |
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375 } |
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376 |
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377 int |
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378 ft_render::compute_line_xoffset (const Matrix& lb) const |
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379 { |
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380 if (! bbox.is_empty ()) |
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381 { |
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382 switch (halign) |
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383 { |
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384 case 0: |
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385 return 0; |
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386 case 1: |
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387 return (bbox(2) - lb(2)) / 2; |
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388 case 2: |
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389 return (bbox(2) - lb(2)); |
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390 } |
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391 } |
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392 |
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393 return 0; |
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394 } |
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395 |
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396 void |
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397 ft_render::compute_bbox (void) |
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398 { |
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399 // Stack the various line bbox together and compute the final |
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400 // bounding box for the entire text string. |
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401 |
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402 bbox = Matrix (); |
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403 |
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404 switch (line_bbox.size ()) |
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405 { |
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406 case 0: |
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407 break; |
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408 case 1: |
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409 bbox = line_bbox.front ().extract (0, 0, 0, 3); |
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410 break; |
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411 default: |
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412 for (std::list<Matrix>::const_iterator it = line_bbox.begin (); |
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413 it != line_bbox.end (); ++it) |
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414 { |
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415 if (bbox.is_empty ()) |
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416 bbox = it->extract (0, 0, 0, 3); |
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417 else |
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418 { |
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419 bbox(1) -= (*it)(3); |
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420 bbox(3) += (*it)(3); |
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421 bbox(2) = xmax (bbox(2), (*it)(2)); |
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422 } |
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423 } |
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424 break; |
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425 } |
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426 } |
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427 |
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428 void |
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429 ft_render::update_line_bbox (void) |
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430 { |
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431 // Called after a font change, when in MODE_BBOX mode, to update the |
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432 // current line bbox with the new font metrics. This also includes the |
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433 // current yoffset, that is the offset of the current glyph's baseline |
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434 // the line's baseline. |
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435 |
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436 if (mode == MODE_BBOX) |
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|
437 { |
17330
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Allow to compile with older freetype on RHEL5 (bug #39823).
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|
438 int asc = font.get_face ()->size->metrics.ascender >> 6; |
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439 int desc = font.get_face ()->size->metrics.descender >> 6; |
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440 |
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441 Matrix& bb = line_bbox.front (); |
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442 |
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443 if ((yoffset + desc) < bb(1)) |
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444 { |
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445 // The new font goes below the bottom of the current bbox. |
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446 |
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447 int delta = bb(1) - (yoffset + desc); |
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448 |
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449 bb(1) -= delta; |
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450 bb(3) += delta; |
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451 } |
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452 |
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453 if ((yoffset + asc) > (bb(1) + bb(3))) |
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454 { |
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455 // The new font goes above the top of the current bbox. |
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|
456 |
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457 int delta = (yoffset + asc) - (bb(1) + bb(3)); |
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458 |
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|
459 bb(3) += delta; |
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|
460 } |
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|
461 } |
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|
462 } |
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|
463 |
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|
464 void |
9403
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465 ft_render::set_mode (int m) |
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466 { |
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467 mode = m; |
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468 |
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|
469 switch (mode) |
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|
470 { |
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|
471 case MODE_BBOX: |
17272
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472 xoffset = line_yoffset = yoffset = 0; |
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473 bbox = Matrix (1, 4, 0.0); |
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474 line_bbox.clear (); |
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475 push_new_line (); |
9403
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|
476 break; |
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|
477 case MODE_RENDER: |
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|
478 if (bbox.numel () != 4) |
10315
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untabify src C++ source files
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diff
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|
479 { |
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|
480 ::warning ("ft_render: invalid bounding box, cannot render"); |
9403
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|
481 |
17272
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|
482 xoffset = line_yoffset = yoffset = 0; |
10315
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|
483 pixels = uint8NDArray (); |
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|
484 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
485 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
486 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
487 pixels = uint8NDArray (dim_vector (4, bbox(2), bbox(3)), |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
488 static_cast<uint8_t> (0)); |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
489 xoffset = compute_line_xoffset (line_bbox.front ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
490 line_yoffset = -bbox(1)-1; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
491 yoffset = 0; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
492 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
493 break; |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
494 default: |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14138
diff
changeset
|
495 ::error ("ft_render: invalid mode '%d'", mode); |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
496 break; |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
497 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
498 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
499 |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
500 FT_UInt |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
501 ft_render::process_character (FT_ULong code, FT_UInt previous) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
502 { |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
503 FT_Face face = font.get_face (); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
504 FT_UInt glyph_index = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
505 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
506 if (face) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
507 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
508 glyph_index = FT_Get_Char_Index (face, code); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
509 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
510 if (code != '\n' |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
511 && (! glyph_index |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
512 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
513 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
514 glyph_index = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
515 gripe_missing_glyph (code); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
516 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
517 else |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
518 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
519 switch (mode) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
520 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
521 case MODE_RENDER: |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
522 if (code == '\n') |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
523 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
524 glyph_index = FT_Get_Char_Index (face, ' '); |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
525 if (! glyph_index |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
526 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
527 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
528 glyph_index = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
529 gripe_missing_glyph (' '); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
530 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
531 else |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
532 push_new_line (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
533 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
534 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL)) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
535 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
536 glyph_index = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
537 gripe_glyph_render (code); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
538 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
539 else |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
540 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
541 FT_Bitmap& bitmap = face->glyph->bitmap; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
542 int x0, y0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
543 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
544 if (previous) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
545 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
546 FT_Vector delta; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
547 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
548 FT_Get_Kerning (face, previous, glyph_index, |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
549 FT_KERNING_DEFAULT, &delta); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
550 xoffset += (delta.x >> 6); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
551 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
552 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
553 x0 = xoffset + face->glyph->bitmap_left; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
554 y0 = line_yoffset + yoffset + face->glyph->bitmap_top; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
555 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
556 // 'w' seems to have a negative -1 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
557 // face->glyph->bitmap_left, this is so we don't |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
558 // index out of bound, and assumes we we allocated |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
559 // the right amount of horizontal space in the bbox. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
560 if (x0 < 0) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
561 x0 = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
562 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
563 for (int r = 0; r < bitmap.rows; r++) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
564 for (int c = 0; c < bitmap.width; c++) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
565 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
566 unsigned char pix = bitmap.buffer[r*bitmap.width+c]; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
567 if (x0+c < 0 || x0+c >= pixels.dim2 () |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
568 || y0-r < 0 || y0-r >= pixels.dim3 ()) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
569 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
570 //::warning ("ft_render: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)", |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
571 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ()); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
572 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
573 else if (pixels(3, x0+c, y0-r).value () == 0) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
574 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
575 pixels(0, x0+c, y0-r) = color(0); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
576 pixels(1, x0+c, y0-r) = color(1); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
577 pixels(2, x0+c, y0-r) = color(2); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
578 pixels(3, x0+c, y0-r) = pix; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
579 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
580 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
581 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
582 xoffset += (face->glyph->advance.x >> 6); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
583 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
584 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
585 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
586 case MODE_BBOX: |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
587 if (code == '\n') |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
588 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
589 glyph_index = FT_Get_Char_Index (face, ' '); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
590 if (! glyph_index |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
591 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
592 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
593 glyph_index = 0; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
594 gripe_missing_glyph (' '); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
595 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
596 else |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
597 push_new_line (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
598 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
599 else |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
600 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
601 Matrix& bb = line_bbox.back (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
602 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
603 // If we have a previous glyph, use kerning information. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
604 // This usually means moving a bit backward before adding |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
605 // the next glyph. That is, "delta.x" is usually < 0. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
606 if (previous) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
607 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
608 FT_Vector delta; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
609 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
610 FT_Get_Kerning (face, previous, glyph_index, |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
611 FT_KERNING_DEFAULT, &delta); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
612 |
17274
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
613 xoffset += (delta.x >> 6); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
614 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
615 |
17274
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
616 // Extend current X offset box by the width of the current |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
617 // glyph. Then extend the line bounding box if necessary. |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
618 |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
619 xoffset += (face->glyph->advance.x >> 6); |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
620 bb(2) = xmax (bb(2), xoffset); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
621 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
622 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
623 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
624 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
625 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
626 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
627 return glyph_index; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
628 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
629 |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
630 void |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
631 ft_render::visit (text_element_string& e) |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
632 { |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
633 if (font.is_valid ()) |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
634 { |
9616
2093499ec9f4
avoid crash if default font can't be found
John W. Eaton <jwe@octave.org>
parents:
9406
diff
changeset
|
635 FT_UInt glyph_index, previous = 0; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
636 |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
637 std::string str = e.string_value (); |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
638 size_t n = str.length (), curr = 0; |
17377
15e2ad6372f7
maint: Tweaks to remove compiler warnings.
Rik <rik@octave.org>
parents:
17352
diff
changeset
|
639 mbstate_t ps; |
15e2ad6372f7
maint: Tweaks to remove compiler warnings.
Rik <rik@octave.org>
parents:
17352
diff
changeset
|
640 memset (&ps, 0, sizeof (ps)); // Initialize state to 0. |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
641 wchar_t wc; |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
642 |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
643 while (n > 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
644 { |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
645 size_t r = gnulib::mbrtowc (&wc, str.data () + curr, n, &ps); |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
646 |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
647 if (r > 0 |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
648 && r != static_cast<size_t> (-1) |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
649 && r != static_cast<size_t> (-2)) |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
650 { |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
651 n -= r; |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
652 curr += r; |
12965
22bc9ec80c2c
allow multi-line string property for text objects using cell arrays or char matrices
Ben Abbott <bpabbott@mac.com>
parents:
12334
diff
changeset
|
653 |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
654 glyph_index = process_character (wc, previous); |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
655 |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
656 if (wc == L'\n') |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
657 previous = 0; |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
658 else |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
659 previous = glyph_index; |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
660 } |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
661 else |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
662 { |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
663 if (r != 0) |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
664 ::warning ("ft_render: failed to decode string `%s' with " |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
665 "locale `%s'", str.c_str (), |
17898
8c33abdd2f9a
maint: Avoid using NULL in C++ code.
John W. Eaton <jwe@octave.org>
parents:
17787
diff
changeset
|
666 std::setlocale (LC_CTYPE, 0)); |
17352
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
667 break; |
4a348443de9b
Support multibyte characters in Freetype-based renderer (bug #31596).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17330
diff
changeset
|
668 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
669 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
670 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
671 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
672 |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
673 void |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
674 ft_render::visit (text_element_list& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
675 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
676 // Save and restore (after processing the list) the current font and color. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
677 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
678 ft_font saved_font (font); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
679 uint8NDArray saved_color (color); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
680 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
681 text_processor::visit (e); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
682 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
683 font = saved_font; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
684 color = saved_color; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
685 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
686 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
687 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
688 ft_render::visit (text_element_subscript& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
689 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
690 ft_font saved_font (font); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
691 int saved_line_yoffset = line_yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
692 int saved_yoffset = yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
693 |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
694 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
695 font.get_size () - 2); |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
696 |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
697 if (font.is_valid ()) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
698 { |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
699 int h = font.get_face ()->size->metrics.height >> 6; |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
700 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
701 // Shifting the baseline by 2/3 the font height seems to produce |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
702 // decent result. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
703 yoffset -= (h * 2) / 3; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
704 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
705 if (mode == MODE_BBOX) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
706 update_line_bbox (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
707 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
708 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
709 text_processor::visit (e); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
710 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
711 font = saved_font; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
712 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
713 // cannot be restored, because the saved value is not relevant anymore. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
714 if (line_yoffset == saved_line_yoffset) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
715 yoffset = saved_yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
716 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
717 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
718 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
719 ft_render::visit (text_element_superscript& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
720 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
721 ft_font saved_font (font); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
722 int saved_line_yoffset = line_yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
723 int saved_yoffset = yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
724 |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
725 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
726 font.get_size () - 2); |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
727 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
728 if (saved_font.is_valid ()) |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
729 { |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
730 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6; |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
731 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
732 // Shifting the baseline by 2/3 base font ascender seems to produce |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
733 // decent result. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
734 yoffset += (s_asc * 2) / 3; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
735 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
736 if (mode == MODE_BBOX) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
737 update_line_bbox (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
738 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
739 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
740 text_processor::visit (e); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
741 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
742 font = saved_font; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
743 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
744 // cannot be restored, because the saved value is not relevant anymore. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
745 if (line_yoffset == saved_line_yoffset) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
746 yoffset = saved_yoffset; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
747 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
748 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
749 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
750 ft_render::visit (text_element_color& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
751 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
752 if (mode == MODE_RENDER) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
753 set_color (e.get_color ()); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
754 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
755 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
756 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
757 ft_render::visit (text_element_fontsize& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
758 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
759 double sz = e.get_fontsize (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
760 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
761 // FIXME: Matlab documentation says that the font size is expressed |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
762 // in the text object FontUnit. |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
763 |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
764 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
765 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
766 if (mode == MODE_BBOX) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
767 update_line_bbox (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
768 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
769 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
770 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
771 ft_render::visit (text_element_fontname& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
772 { |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
773 set_font (e.get_fontname (), font.get_weight (), font.get_angle (), |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
774 font.get_size ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
775 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
776 if (mode == MODE_BBOX) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
777 update_line_bbox (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
778 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
779 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
780 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
781 ft_render::visit (text_element_fontstyle& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
782 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
783 switch (e.get_fontstyle ()) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
784 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
785 case text_element_fontstyle::normal: |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
786 set_font (font.get_name (), "normal", "normal", font.get_size ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
787 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
788 case text_element_fontstyle::bold: |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
789 set_font (font.get_name (), "bold", "normal", font.get_size ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
790 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
791 case text_element_fontstyle::italic: |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
792 set_font (font.get_name (), "normal", "italic", font.get_size ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
793 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
794 case text_element_fontstyle::oblique: |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
795 set_font (font.get_name (), "normal", "oblique", font.get_size ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
796 break; |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
797 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
798 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
799 if (mode == MODE_BBOX) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
800 update_line_bbox (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
801 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
802 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
803 void |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
804 ft_render::visit (text_element_symbol& e) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
805 { |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
806 uint32_t code = e.get_symbol_code (); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
807 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
808 if (code != text_element_symbol::invalid_code && font.is_valid ()) |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
809 process_character (code); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
810 else if (font.is_valid ()) |
17327
fe6518a1d87c
Move TeX symbol decoding into the lexer (bug #39831).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17324
diff
changeset
|
811 ::warning ("ignoring unknown symbol: %d", e.get_symbol ()); |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
812 } |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
813 |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
814 void |
17274
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
815 ft_render::visit (text_element_combined& e) |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
816 { |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
817 int saved_xoffset = xoffset; |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
818 int max_xoffset = xoffset; |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
819 |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
820 for (text_element_combined::iterator it = e.begin (); it != e.end (); ++it) |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
821 { |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
822 xoffset = saved_xoffset; |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
823 (*it)->accept (*this); |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
824 max_xoffset = xmax (xoffset, max_xoffset); |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
825 } |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
826 |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
827 xoffset = max_xoffset; |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
828 } |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
829 |
0a09d4b40767
Combine successive TeX super- and subscript elements.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17272
diff
changeset
|
830 void |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
831 ft_render::reset (void) |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
832 { |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
833 set_mode (MODE_BBOX); |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
834 set_color (Matrix (1, 3, 0.0)); |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
835 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
836 |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
837 void |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
838 ft_render::set_color (Matrix c) |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
839 { |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
840 if (c.numel () == 3) |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
841 { |
17272
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
842 color(0) = static_cast<uint8_t> (c(0)*255); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
843 color(1) = static_cast<uint8_t> (c(1)*255); |
8ce6cdd272eb
Support TeX elements in FreeType renderer.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17271
diff
changeset
|
844 color(2) = static_cast<uint8_t> (c(2)*255); |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
845 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
846 else |
9616
2093499ec9f4
avoid crash if default font can't be found
John W. Eaton <jwe@octave.org>
parents:
9406
diff
changeset
|
847 ::warning ("ft_render::set_color: invalid color"); |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
848 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
849 |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
850 uint8NDArray |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
851 ft_render::render (text_element* elt, Matrix& box, int rotation) |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
852 { |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
853 set_mode (MODE_BBOX); |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
854 elt->accept (*this); |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
855 compute_bbox (); |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
856 box = bbox; |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
857 |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
858 set_mode (MODE_RENDER); |
9406
c0c23dbbade7
Improve error handling in text rendering.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
9405
diff
changeset
|
859 if (pixels.numel () > 0) |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
860 { |
9406
c0c23dbbade7
Improve error handling in text rendering.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
9405
diff
changeset
|
861 elt->accept (*this); |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
862 |
9406
c0c23dbbade7
Improve error handling in text rendering.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
9405
diff
changeset
|
863 switch (rotation) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
864 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
865 case ROTATION_0: |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
866 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
867 case ROTATION_90: |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
868 { |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
869 Array<octave_idx_type> perm (dim_vector (3, 1)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
870 perm(0) = 0; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
871 perm(1) = 2; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
872 perm(2) = 1; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
873 pixels = pixels.permute (perm); |
9406
c0c23dbbade7
Improve error handling in text rendering.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
9405
diff
changeset
|
874 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
875 Array<idx_vector> idx (dim_vector (3, 1)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
876 idx(0) = idx_vector (':'); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
877 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
878 idx(2) = idx_vector (':'); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
879 pixels = uint8NDArray (pixels.index (idx)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
880 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
881 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
882 case ROTATION_180: |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
883 { |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
884 Array<idx_vector> idx (dim_vector (3, 1)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
885 idx(0) = idx_vector (':'); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
886 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
887 idx(2)= idx_vector (pixels.dim3 ()-1, -1, -1); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
888 pixels = uint8NDArray (pixels.index (idx)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
889 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
890 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
891 case ROTATION_270: |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
892 { |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
893 Array<octave_idx_type> perm (dim_vector (3, 1)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
894 perm(0) = 0; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
895 perm(1) = 2; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
896 perm(2) = 1; |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
897 pixels = pixels.permute (perm); |
9406
c0c23dbbade7
Improve error handling in text rendering.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
9405
diff
changeset
|
898 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
899 Array<idx_vector> idx (dim_vector (3, 1)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
900 idx(0) = idx_vector (':'); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
901 idx(1) = idx_vector (':'); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
902 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
903 pixels = uint8NDArray (pixels.index (idx)); |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
904 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
905 break; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
9833
diff
changeset
|
906 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
907 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
908 |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
909 return pixels; |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
910 } |
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
911 |
16201
2338a92e9782
Fix spacing between ylabel and y-axis (bug #38461)
Rik <rik@octave.org>
parents:
15467
diff
changeset
|
912 // Note: |
2338a92e9782
Fix spacing between ylabel and y-axis (bug #38461)
Rik <rik@octave.org>
parents:
15467
diff
changeset
|
913 // x-extent accurately measures width of glyphs. |
2338a92e9782
Fix spacing between ylabel and y-axis (bug #38461)
Rik <rik@octave.org>
parents:
15467
diff
changeset
|
914 // y-extent is overly large because it is measured from baseline-to-baseline. |
2338a92e9782
Fix spacing between ylabel and y-axis (bug #38461)
Rik <rik@octave.org>
parents:
15467
diff
changeset
|
915 // Calling routines, such as ylabel, may need to account for this mismatch. |
2338a92e9782
Fix spacing between ylabel and y-axis (bug #38461)
Rik <rik@octave.org>
parents:
15467
diff
changeset
|
916 |
10402
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
917 Matrix |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
918 ft_render::get_extent (text_element *elt, double rotation) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
919 { |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
920 set_mode (MODE_BBOX); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
921 elt->accept (*this); |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
922 compute_bbox (); |
10402
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
923 |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
924 Matrix extent (1, 2, 0.0); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
925 |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
926 switch (rotation_to_mode (rotation)) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
927 { |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
928 case ROTATION_0: |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
929 case ROTATION_180: |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
930 extent(0) = bbox(2); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
931 extent(1) = bbox(3); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
932 break; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
933 case ROTATION_90: |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
934 case ROTATION_270: |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
935 extent(0) = bbox(3); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
936 extent(1) = bbox(2); |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
937 } |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
938 |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
939 return extent; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
940 } |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
941 |
12334
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
942 Matrix |
17269
5b088598df1d
Add simple TeX parser based on flex/bison.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16892
diff
changeset
|
943 ft_render::get_extent (const std::string& txt, double rotation, |
5b088598df1d
Add simple TeX parser based on flex/bison.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16892
diff
changeset
|
944 const caseless_str& interpreter) |
12334
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
945 { |
17269
5b088598df1d
Add simple TeX parser based on flex/bison.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16892
diff
changeset
|
946 text_element *elt = text_parser::parse (txt, interpreter); |
12334
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
947 Matrix extent = get_extent (elt, rotation); |
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
948 delete elt; |
13141
e81ddf9cacd5
maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
12969
diff
changeset
|
949 |
12334
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
950 return extent; |
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
951 } |
63dc132a1000
Move axes labels and title positioning to axes::properties
Konstantinos Poulios <logari81@gmail.com>
parents:
12225
diff
changeset
|
952 |
10402
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
953 int |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
954 ft_render::rotation_to_mode (double rotation) const |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
955 { |
17526
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
956 // Clip rotation to range [0, 360] |
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
957 while (rotation < 0) |
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
958 rotation += 360.0; |
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
959 while (rotation > 360.0) |
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
960 rotation -= 360.0; |
4f1dd8a980df
Clip OpenGL text rotations to range [0,360].
Rik <rik@octave.org>
parents:
17377
diff
changeset
|
961 |
10402
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
962 if (rotation == 0.0) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
963 return ROTATION_0; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
964 else if (rotation == 90.0) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
965 return ROTATION_90; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
966 else if (rotation == 180.0) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
967 return ROTATION_180; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
968 else if (rotation == 270.0) |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
969 return ROTATION_270; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
970 else |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
971 return ROTATION_0; |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
972 } |
9f2bf537a651
Implement text extent property
Michael Goffioul <michael.goffioul@gmail.com>
parents:
10350
diff
changeset
|
973 |
11455
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
974 void |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
975 ft_render::text_to_pixels (const std::string& txt, |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
976 uint8NDArray& pixels_, Matrix& box, |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
977 int _halign, int valign, double rotation, |
17269
5b088598df1d
Add simple TeX parser based on flex/bison.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16892
diff
changeset
|
978 const caseless_str& interpreter) |
11455
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
979 { |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
980 int rot_mode = rotation_to_mode (rotation); |
13141
e81ddf9cacd5
maint: untabify and remove trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
12969
diff
changeset
|
981 |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
982 halign = _halign; |
11455
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
983 |
17269
5b088598df1d
Add simple TeX parser based on flex/bison.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
16892
diff
changeset
|
984 text_element *elt = text_parser::parse (txt, interpreter); |
11455
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
985 pixels_ = render (elt, box, rot_mode); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
986 delete elt; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
987 |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
988 if (pixels_.numel () == 0) |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
989 { |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
990 // nothing to render |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
991 return; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
992 } |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
993 |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
994 switch (halign) |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
995 { |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
996 default: box(0) = 0; break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
997 case 1: box(0) = -box(2)/2; break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
998 case 2: box(0) = -box(2); break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
999 } |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1000 switch (valign) |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1001 { |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1002 default: box(1) = 0; break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1003 case 1: box(1) = -box(3)/2; break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1004 case 2: box(1) = -box(3); break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1005 case 3: break; |
16206
9ba5c5ed3aeb
Add new verticalalignment option 'cap' for OpenGL plotting.
Rik <rik@octave.org>
parents:
16201
diff
changeset
|
1006 case 4: box(1) = -box(3)-box(1); break; |
11455
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1007 } |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1008 |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1009 switch (rot_mode) |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1010 { |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1011 case ROTATION_90: |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1012 std::swap (box(0), box(1)); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1013 std::swap (box(2), box(3)); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1014 box(0) = -box(0)-box(2); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1015 break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1016 case ROTATION_180: |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1017 box(0) = -box(0)-box(2); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1018 box(1) = -box(1)-box(3); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1019 break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1020 case ROTATION_270: |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1021 std::swap (box(0), box(1)); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1022 std::swap (box(2), box(3)); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1023 box(1) = -box(1)-box(3); |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1024 break; |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1025 } |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1026 } |
2be9e22796d2
improvements in text-extent calculation
Konstantinos Poulios <logari81@googlemail.com>
parents:
10553
diff
changeset
|
1027 |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1028 ft_render::ft_font::ft_font (const ft_font& ft) |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1029 : name (ft.name), weight (ft.weight), angle (ft.angle), size (ft.size), |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1030 face (0) |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1031 { |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1032 #if HAVE_FT_REFERENCE_FACE |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1033 FT_Face ft_face = ft.get_face (); |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1034 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1035 if (ft_face && FT_Reference_Face (ft_face) == 0) |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1036 face = ft_face; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1037 #endif |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1038 } |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1039 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1040 ft_render::ft_font& |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1041 ft_render::ft_font::operator = (const ft_font& ft) |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1042 { |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1043 if (&ft != this) |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1044 { |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1045 name = ft.name; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1046 weight = ft.weight; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1047 angle = ft.angle; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1048 size = ft.size; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1049 if (face) |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1050 { |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1051 FT_Done_Face (face); |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1052 face = 0; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1053 } |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1054 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1055 #if HAVE_FT_REFERENCE_FACE |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1056 FT_Face ft_face = ft.get_face (); |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1057 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1058 if (ft_face && FT_Reference_Face (ft_face) == 0) |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1059 face = ft_face; |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1060 #endif |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1061 } |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1062 |
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1063 return *this; |
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1064 } |
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1065 |
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1066 FT_Face |
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1067 ft_render::ft_font::get_face (void) const |
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1068 { |
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1069 if (! face && ! name.empty ()) |
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1070 { |
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1071 face = ft_manager::get_font (name, weight, angle, size); |
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1072 |
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1073 if (face) |
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1074 { |
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1075 if (FT_Set_Char_Size (face, 0, size*64, 0, 0)) |
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1076 ::warning ("ft_render: unable to set font size to %g", size); |
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1077 } |
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1078 else |
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1079 ::warning ("ft_render: unable to load appropriate font"); |
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1080 } |
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1081 |
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1082 return face; |
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1083 } |
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1084 |
9403
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1085 #endif // HAVE_FREETYPE |