Mercurial > octave
annotate libinterp/corefcn/ft-text-renderer.cc @ 24722:af6c1ed60581
avoid splitting namespace blocks unnecessarily
* fcn-info.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc,
oct-stream.cc, symtab.cc, pt-cbinop.cc, pt-eval.cc, pt-idx.cc:
Don't split namespace blocks unnecessarily. Omitting static functions
from namespace blocks was done because of a misunderstanding.
author | John W. Eaton <jwe@octave.org> |
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date | Sat, 10 Feb 2018 07:58:25 -0500 |
parents | 194eb4bd202b |
children | 1a46d174a483 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2016-2017 John W. Eaton |
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4 Copyright (C) 2009-2016 Michael Goffioul |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software: you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <https://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include "base-text-renderer.h" |
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29 #include "ft-text-renderer.h" |
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30 |
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31 #if defined (HAVE_FREETYPE) |
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32 |
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33 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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34 # pragma GCC diagnostic push |
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35 # pragma GCC diagnostic ignored "-Wold-style-cast" |
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36 #endif |
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37 |
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38 #include <ft2build.h> |
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39 #include FT_FREETYPE_H |
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40 |
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41 #if defined (HAVE_FONTCONFIG) |
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42 # include <fontconfig/fontconfig.h> |
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43 #endif |
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44 |
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45 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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46 # pragma GCC diagnostic pop |
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47 #endif |
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48 |
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49 #include <clocale> |
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50 #include <cwchar> |
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51 #include <iostream> |
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52 #include <map> |
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53 #include <utility> |
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54 |
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55 #include "singleton-cleanup.h" |
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56 |
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57 #include "defaults.h" |
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58 #include "error.h" |
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59 #include "file-ops.h" |
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60 #include "oct-env.h" |
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61 #include "pr-output.h" |
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62 #include "text-renderer.h" |
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63 |
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64 namespace octave |
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65 { |
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66 // FIXME: maybe issue at most one warning per glyph/font/size/weight |
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67 // combination. |
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68 |
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69 static void |
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70 warn_missing_glyph (FT_ULong c) |
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71 { |
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72 warning_with_id ("Octave:missing-glyph", |
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73 "text_renderer: skipping missing glyph for character '%x'", c); |
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74 } |
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75 |
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76 static void |
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77 warn_glyph_render (FT_ULong c) |
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78 { |
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79 warning_with_id ("Octave:glyph-render", |
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80 "text_renderer: unable to render glyph for character '%x'", c); |
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81 } |
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82 |
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83 #if defined (_MSC_VER) |
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84 // FIXME: is this really needed? |
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85 // |
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86 // This is just a trick to avoid multiple symbol definitions. |
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87 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type> |
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88 // that will cause MSVC not to generate a new instantiation and |
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89 // use the imported one instead. |
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90 # include "PermMatrix.h" |
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91 #endif |
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92 |
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93 // Forward declaration |
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94 static void ft_face_destroyed (void *object); |
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95 |
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96 class |
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97 ft_manager |
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98 { |
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99 private: |
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100 |
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101 ft_manager (void) |
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102 : library (), freetype_initialized (false), fontconfig_initialized (false) |
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103 { |
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104 if (FT_Init_FreeType (&library)) |
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105 error ("unable to initialize FreeType library"); |
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106 else |
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107 freetype_initialized = true; |
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108 |
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109 #if defined (HAVE_FONTCONFIG) |
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110 if (! FcInit ()) |
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111 error ("unable to initialize fontconfig library"); |
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112 else |
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113 fontconfig_initialized = true; |
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114 #endif |
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115 } |
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116 |
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117 public: |
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118 |
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119 // No copying! |
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120 |
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121 ft_manager (const ft_manager&) = delete; |
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122 |
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123 ft_manager& operator = (const ft_manager&) = delete; |
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124 |
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125 private: |
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126 |
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127 ~ft_manager (void) |
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128 { |
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129 if (freetype_initialized) |
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130 FT_Done_FreeType (library); |
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131 |
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132 #if defined (HAVE_FONTCONFIG) |
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133 // FIXME: Skip the call to FcFini because it can trigger the assertion |
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134 // |
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135 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed. |
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136 // |
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137 // if (fontconfig_initialized) |
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138 // FcFini (); |
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139 #endif |
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140 } |
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141 |
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142 public: |
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143 |
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144 static bool instance_ok (void) |
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145 { |
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146 bool retval = true; |
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147 |
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148 if (! instance) |
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149 { |
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150 instance = new ft_manager (); |
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151 |
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152 if (instance) |
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153 singleton_cleanup_list::add (cleanup_instance); |
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154 } |
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155 |
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156 if (! instance) |
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157 error ("unable to create ft_manager!"); |
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158 |
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159 return retval; |
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160 } |
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161 |
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162 static void cleanup_instance (void) { delete instance; instance = nullptr; } |
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163 |
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164 static FT_Face get_font (const std::string& name, const std::string& weight, |
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165 const std::string& angle, double size) |
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166 { |
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167 return (instance_ok () |
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168 ? instance->do_get_font (name, weight, angle, size) |
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169 : nullptr); |
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170 } |
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171 |
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172 static void font_destroyed (FT_Face face) |
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173 { |
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174 if (instance_ok ()) |
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175 instance->do_font_destroyed (face); |
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176 } |
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177 |
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178 private: |
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179 |
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180 static ft_manager *instance; |
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181 |
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182 typedef std::pair<std::string, double> ft_key; |
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183 typedef std::map<ft_key, FT_Face> ft_cache; |
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184 |
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185 // Cache the fonts loaded by FreeType. This cache only contains |
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186 // weak references to the fonts, strong references are only present |
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187 // in class text_renderer. |
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188 ft_cache cache; |
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189 |
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190 FT_Face do_get_font (const std::string& name, const std::string& weight, |
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191 const std::string& angle, double size) |
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192 { |
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193 FT_Face retval = nullptr; |
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194 |
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195 #if defined (HAVE_FT_REFERENCE_FACE) |
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196 // Look first into the font cache, then use fontconfig. If the font |
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197 // is present in the cache, simply add a reference and return it. |
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198 |
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199 ft_key key (name + ':' + weight + ':' + angle, size); |
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200 ft_cache::const_iterator it = cache.find (key); |
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201 |
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202 if (it != cache.end ()) |
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203 { |
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204 FT_Reference_Face (it->second); |
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205 return it->second; |
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206 } |
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207 #endif |
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208 |
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209 static std::string font_dir; |
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210 |
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211 if (font_dir.empty ()) |
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212 { |
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213 font_dir = sys::env::getenv ("OCTAVE_FONT_DIR"); |
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214 |
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215 if (font_dir.empty ()) |
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216 font_dir = config::oct_etc_dir () + sys::file_ops::dir_sep_str () |
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217 + "fonts"; |
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218 } |
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219 |
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220 |
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221 // Default font file |
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222 std::string file; |
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223 |
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224 if (! font_dir.empty ()) |
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225 { |
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226 file = font_dir + octave::sys::file_ops::dir_sep_str () + "FreeSans"; |
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227 |
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228 if (weight == "bold") |
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229 file += "Bold"; |
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230 |
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231 if (angle == "italic" || angle == "oblique") |
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232 file += "Oblique"; |
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233 |
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234 file += ".otf"; |
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235 } |
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236 |
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237 #if defined (HAVE_FONTCONFIG) |
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238 if (name != "*" && fontconfig_initialized) |
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239 { |
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240 int fc_weight, fc_angle; |
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241 |
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242 if (weight == "bold") |
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243 fc_weight = FC_WEIGHT_BOLD; |
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244 else if (weight == "light") |
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245 fc_weight = FC_WEIGHT_LIGHT; |
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246 else if (weight == "demi") |
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247 fc_weight = FC_WEIGHT_DEMIBOLD; |
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248 else |
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249 fc_weight = FC_WEIGHT_NORMAL; |
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250 |
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251 if (angle == "italic") |
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252 fc_angle = FC_SLANT_ITALIC; |
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253 else if (angle == "oblique") |
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254 fc_angle = FC_SLANT_OBLIQUE; |
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255 else |
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256 fc_angle = FC_SLANT_ROMAN; |
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257 |
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258 FcPattern *pat = FcPatternCreate (); |
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259 |
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260 FcPatternAddString (pat, FC_FAMILY, |
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261 (reinterpret_cast<const FcChar8 *> |
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262 (name.c_str ()))); |
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263 |
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264 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight); |
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265 FcPatternAddInteger (pat, FC_SLANT, fc_angle); |
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266 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size); |
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267 |
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268 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern)) |
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269 { |
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270 FcResult res; |
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271 FcPattern *match; |
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272 |
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273 FcDefaultSubstitute (pat); |
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274 match = FcFontMatch (nullptr, pat, &res); |
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276 // FIXME: originally, this test also required that |
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277 // res != FcResultNoMatch. Is that really needed? |
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278 if (match) |
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279 { |
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280 unsigned char *tmp; |
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281 |
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282 FcPatternGetString (match, FC_FILE, 0, &tmp); |
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283 file = reinterpret_cast<char *> (tmp); |
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284 } |
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285 else |
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286 ::warning ("could not match any font: %s-%s-%s-%g, using default font", |
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287 name.c_str (), weight.c_str (), angle.c_str (), |
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288 size); |
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289 |
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290 if (match) |
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291 FcPatternDestroy (match); |
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292 } |
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293 |
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294 FcPatternDestroy (pat); |
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295 } |
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296 #endif |
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297 |
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298 if (file.empty ()) |
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299 ::warning ("unable to find default font files"); |
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300 else |
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301 { |
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302 if (FT_New_Face (library, file.c_str (), 0, &retval)) |
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303 ::warning ("ft_manager: unable to load font: %s", file.c_str ()); |
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304 #if defined (HAVE_FT_REFERENCE_FACE) |
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305 else |
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306 { |
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307 // Install a finalizer to notify ft_manager that the font is |
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308 // being destroyed. The class ft_manager only keeps weak |
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309 // references to font objects. |
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310 |
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311 retval->generic.data = new ft_key (key); |
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312 retval->generic.finalizer = ft_face_destroyed; |
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313 |
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314 // Insert loaded font into the cache. |
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315 |
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316 cache[key] = retval; |
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317 } |
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318 #endif |
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319 } |
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320 |
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321 return retval; |
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322 } |
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323 |
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324 void do_font_destroyed (FT_Face face) |
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325 { |
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326 if (face->generic.data) |
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327 { |
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328 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data); |
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329 |
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330 cache.erase (*pkey); |
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331 delete pkey; |
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332 face->generic.data = nullptr; |
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333 } |
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334 } |
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335 |
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336 private: |
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337 FT_Library library; |
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338 bool freetype_initialized; |
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339 bool fontconfig_initialized; |
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340 }; |
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341 |
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342 ft_manager *ft_manager::instance = nullptr; |
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343 |
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344 static void |
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345 ft_face_destroyed (void *object) |
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346 { |
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347 octave::ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object)); |
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348 } |
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349 |
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350 class |
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351 OCTINTERP_API |
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352 ft_text_renderer : public base_text_renderer |
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353 { |
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354 public: |
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355 |
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356 enum |
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357 { |
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358 MODE_BBOX = 0, |
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359 MODE_RENDER = 1 |
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360 }; |
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361 |
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362 enum |
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363 { |
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364 ROTATION_0 = 0, |
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365 ROTATION_90 = 1, |
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366 ROTATION_180 = 2, |
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367 ROTATION_270 = 3 |
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368 }; |
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369 |
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370 public: |
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371 |
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372 ft_text_renderer (void) |
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373 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0), |
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374 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX), |
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375 color (dim_vector (1, 3), 0) |
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376 { } |
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377 |
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378 // No copying! |
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379 |
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380 ft_text_renderer (const ft_text_renderer&) = delete; |
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381 |
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382 ft_text_renderer& operator = (const ft_text_renderer&) = delete; |
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383 |
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384 ~ft_text_renderer (void) = default; |
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385 |
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386 void visit (text_element_string& e); |
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387 |
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388 void visit (text_element_list& e); |
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389 |
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390 void visit (text_element_subscript& e); |
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391 |
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392 void visit (text_element_superscript& e); |
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393 |
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394 void visit (text_element_color& e); |
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395 |
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396 void visit (text_element_fontsize& e); |
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397 |
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398 void visit (text_element_fontname& e); |
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399 |
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400 void visit (text_element_fontstyle& e); |
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401 |
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402 void visit (text_element_symbol& e); |
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403 |
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404 void visit (text_element_combined& e); |
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405 |
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406 void reset (void); |
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407 |
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408 uint8NDArray get_pixels (void) const { return pixels; } |
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409 |
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410 Matrix get_boundingbox (void) const { return bbox; } |
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411 |
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412 uint8NDArray render (text_element *elt, Matrix& box, |
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413 int rotation = ROTATION_0); |
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414 |
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415 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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416 Matrix get_extent (const std::string& txt, double rotation, |
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417 const caseless_str& interpreter); |
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418 |
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419 void set_font (const std::string& name, const std::string& weight, |
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420 const std::string& angle, double size); |
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421 |
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422 void set_color (const Matrix& c); |
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423 |
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424 void set_mode (int m); |
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425 |
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426 void text_to_pixels (const std::string& txt, |
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427 uint8NDArray& pxls, Matrix& bbox, |
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428 int halign, int valign, double rotation, |
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429 const caseless_str& interpreter, |
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430 bool handle_rotation); |
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431 |
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432 private: |
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433 |
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434 int rotation_to_mode (double rotation) const; |
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435 |
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436 // Class to hold information about fonts and a strong |
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437 // reference to the font objects loaded by FreeType. |
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438 |
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439 class ft_font : public text_renderer::font |
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440 { |
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441 public: |
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442 |
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443 ft_font (void) |
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444 : text_renderer::font (), face (nullptr) { } |
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445 |
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446 ft_font (const std::string& nm, const std::string& wt, |
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447 const std::string& ang, double sz, FT_Face f = nullptr) |
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448 : text_renderer::font (nm, wt, ang, sz), face (f) |
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449 { } |
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450 |
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451 ft_font (const ft_font& ft); |
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452 |
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453 ~ft_font (void) |
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454 { |
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455 if (face) |
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456 FT_Done_Face (face); |
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457 } |
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458 |
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459 ft_font& operator = (const ft_font& ft); |
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460 |
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461 bool is_valid (void) const { return get_face (); } |
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462 |
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463 FT_Face get_face (void) const; |
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464 |
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465 private: |
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466 |
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467 mutable FT_Face face; |
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468 }; |
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469 |
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470 void push_new_line (void); |
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471 |
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472 void update_line_bbox (void); |
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473 |
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474 void compute_bbox (void); |
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475 |
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476 int compute_line_xoffset (const Matrix& lb) const; |
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477 |
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478 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0); |
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479 |
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480 public: |
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481 |
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482 void text_to_strlist (const std::string& txt, |
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483 std::list<text_renderer::string>& lst, Matrix& bbox, |
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484 int halign, int valign, double rotation, |
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485 const caseless_str& interp); |
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486 |
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487 private: |
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488 |
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489 // The current font used by the renderer. |
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490 ft_font font; |
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491 |
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492 // Used to stored the bounding box corresponding to the rendered text. |
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493 // The bounding box has the form [x, y, w, h] where x and y represent the |
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494 // coordinates of the bottom left corner relative to the anchor point of |
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495 // the text (== start of text on the baseline). Due to font descent or |
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496 // multiple lines, the value y is usually negative. |
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497 Matrix bbox; |
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498 |
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499 // Used to stored the rendered text. It's a 3D matrix with size MxNx4 |
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500 // where M and N are the width and height of the bounding box. |
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501 uint8NDArray pixels; |
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502 |
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503 // Used to store the bounding box of each line. This is used to layout |
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504 // multiline text properly. |
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505 std::list<Matrix> line_bbox; |
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506 |
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507 // The current horizontal alignment. This is used to align multi-line text. |
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508 int halign; |
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509 |
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510 // The X offset for the next glyph. |
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511 int xoffset; |
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512 |
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513 // The Y offset of the baseline for the current line. |
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514 int line_yoffset; |
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515 |
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516 // The Y offset of the baseline for the next glyph. The offset is relative |
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517 // to line_yoffset. The total Y offset is computed with: |
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518 // line_yoffset + yoffset. |
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519 int yoffset; |
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520 |
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521 // The current mode of the rendering process (box computing or rendering). |
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522 int mode; |
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523 |
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524 // The base color of the rendered text. |
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525 uint8NDArray color; |
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526 |
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527 // A list of parsed strings to be used for printing. |
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528 std::list<text_renderer::string> strlist; |
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529 |
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530 // The X offset of the baseline for the current line. |
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531 int line_xoffset; |
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532 |
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533 }; |
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534 |
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535 void |
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536 ft_text_renderer::set_font (const std::string& name, const std::string& weight, |
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537 const std::string& angle, double size) |
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538 { |
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539 // FIXME: take "fontunits" into account |
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540 |
23795
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Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
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diff
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541 font = ft_font (name, weight, angle, size, nullptr); |
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542 } |
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543 |
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544 void |
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545 ft_text_renderer::push_new_line (void) |
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546 { |
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547 switch (mode) |
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548 { |
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549 case MODE_BBOX: |
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550 { |
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551 // Create a new bbox entry based on the current font. |
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552 |
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553 FT_Face face = font.get_face (); |
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554 |
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555 if (face) |
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556 { |
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557 int asc = face->size->metrics.ascender >> 6; |
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558 int desc = face->size->metrics.descender >> 6; |
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559 int h = face->size->metrics.height >> 6; |
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560 |
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561 Matrix bb (1, 5, 0.0); |
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562 |
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563 bb(1) = desc; |
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564 bb(3) = asc - desc; |
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565 bb(4) = h; |
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|
566 |
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567 line_bbox.push_back (bb); |
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568 |
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569 xoffset = yoffset = 0; |
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570 } |
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571 } |
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572 break; |
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573 |
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574 case MODE_RENDER: |
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575 { |
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576 // Move to the next line bbox, adjust xoffset based on alignment |
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577 // and yoffset based on the old and new line bbox. |
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578 |
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579 Matrix old_bbox = line_bbox.front (); |
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580 line_bbox.pop_front (); |
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581 Matrix new_bbox = line_bbox.front (); |
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582 |
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583 xoffset = line_xoffset = compute_line_xoffset (new_bbox); |
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584 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3))); |
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585 yoffset = 0; |
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586 } |
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587 break; |
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588 } |
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589 } |
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diff
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|
590 |
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|
591 int |
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592 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const |
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593 { |
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maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
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|
594 if (! bbox.isempty ()) |
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595 { |
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|
596 switch (halign) |
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597 { |
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598 case 0: |
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|
599 return 0; |
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|
600 case 1: |
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601 return (bbox(2) - lb(2)) / 2; |
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|
602 case 2: |
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603 return (bbox(2) - lb(2)); |
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604 } |
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605 } |
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606 |
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607 return 0; |
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608 } |
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609 |
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610 void |
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611 ft_text_renderer::compute_bbox (void) |
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612 { |
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613 // Stack the various line bbox together and compute the final |
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614 // bounding box for the entire text string. |
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615 |
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616 bbox = Matrix (); |
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617 |
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618 switch (line_bbox.size ()) |
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619 { |
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620 case 0: |
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621 break; |
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622 |
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623 case 1: |
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624 bbox = line_bbox.front ().extract (0, 0, 0, 3); |
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625 break; |
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626 |
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627 default: |
22862
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maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
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628 for (const auto& lbox : line_bbox) |
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629 { |
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maint: Deprecate is_empty and replace with isempty.
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630 if (bbox.isempty ()) |
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631 bbox = lbox.extract (0, 0, 0, 3); |
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632 else |
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633 { |
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634 bbox(1) -= lbox(3); |
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635 bbox(3) += lbox(3); |
23696
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remove octave:: namespace tag from symbols used inside octave namespace
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636 bbox(2) = math::max (bbox(2), lbox(2)); |
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637 } |
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638 } |
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639 break; |
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640 } |
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641 } |
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642 |
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643 void |
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644 ft_text_renderer::update_line_bbox (void) |
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645 { |
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646 // Called after a font change, when in MODE_BBOX mode, to update the |
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647 // current line bbox with the new font metrics. This also includes the |
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648 // current yoffset, that is the offset of the current glyph's baseline |
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649 // the line's baseline. |
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650 |
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651 if (mode == MODE_BBOX) |
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652 { |
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653 int asc = font.get_face ()->size->metrics.ascender >> 6; |
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654 int desc = font.get_face ()->size->metrics.descender >> 6; |
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655 |
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656 Matrix& bb = line_bbox.back (); |
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657 |
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658 if ((yoffset + desc) < bb(1)) |
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659 { |
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660 // The new font goes below the bottom of the current bbox. |
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661 |
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662 int delta = bb(1) - (yoffset + desc); |
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663 |
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664 bb(1) -= delta; |
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665 bb(3) += delta; |
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666 } |
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667 |
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668 if ((yoffset + asc) > (bb(1) + bb(3))) |
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669 { |
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670 // The new font goes above the top of the current bbox. |
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671 |
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672 int delta = (yoffset + asc) - (bb(1) + bb(3)); |
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673 |
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674 bb(3) += delta; |
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675 } |
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676 } |
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677 } |
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678 |
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679 void |
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680 ft_text_renderer::set_mode (int m) |
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681 { |
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682 mode = m; |
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683 |
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684 switch (mode) |
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685 { |
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686 case MODE_BBOX: |
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687 xoffset = line_yoffset = yoffset = 0; |
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688 bbox = Matrix (1, 4, 0.0); |
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689 line_bbox.clear (); |
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690 push_new_line (); |
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691 break; |
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|
692 |
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693 case MODE_RENDER: |
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694 if (bbox.numel () != 4) |
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|
695 { |
22515
77b50a83ec11
Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
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22407
diff
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|
696 ::error ("ft_text_renderer: invalid bounding box, cannot render"); |
21209
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revamp text rendering classes
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|
697 |
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698 xoffset = line_yoffset = yoffset = 0; |
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699 pixels = uint8NDArray (); |
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700 } |
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|
701 else |
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|
702 { |
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703 dim_vector d (4, octave_idx_type (bbox(2)), |
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704 octave_idx_type (bbox(3))); |
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705 pixels = uint8NDArray (d, static_cast<uint8_t> (0)); |
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706 xoffset = compute_line_xoffset (line_bbox.front ()); |
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707 line_yoffset = -bbox(1)-1; |
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708 yoffset = 0; |
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709 } |
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|
710 break; |
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|
711 |
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|
712 default: |
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713 error ("ft_text_renderer: invalid mode '%d'", mode); |
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|
714 break; |
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|
715 } |
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|
716 } |
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|
717 |
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|
718 FT_UInt |
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719 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous) |
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720 { |
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|
721 FT_Face face = font.get_face (); |
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722 FT_UInt glyph_index = 0; |
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723 |
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|
724 if (face) |
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725 { |
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|
726 glyph_index = FT_Get_Char_Index (face, code); |
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|
727 |
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728 if (code != '\n' |
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|
729 && (! glyph_index |
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730 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))) |
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|
731 { |
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|
732 glyph_index = 0; |
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|
733 warn_missing_glyph (code); |
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734 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
735 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
736 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
737 switch (mode) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
738 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
739 case MODE_RENDER: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
740 if (code == '\n') |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
741 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
742 glyph_index = FT_Get_Char_Index (face, ' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
743 if (! glyph_index |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
744 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
745 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
746 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
747 warn_missing_glyph (' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
748 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
749 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
750 push_new_line (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
751 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
752 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL)) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
753 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
754 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
755 warn_glyph_render (code); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
756 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
757 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
758 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
759 FT_Bitmap& bitmap = face->glyph->bitmap; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
760 int x0, y0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
761 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
762 if (previous) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
763 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
764 FT_Vector delta; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
765 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
766 FT_Get_Kerning (face, previous, glyph_index, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
767 FT_KERNING_DEFAULT, &delta); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
768 xoffset += (delta.x >> 6); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
769 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
770 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
771 x0 = xoffset + face->glyph->bitmap_left; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
772 y0 = line_yoffset + yoffset + face->glyph->bitmap_top; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
773 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
774 // 'w' seems to have a negative -1 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
775 // face->glyph->bitmap_left, this is so we don't |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
776 // index out of bound, and assumes we've allocated |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
777 // the right amount of horizontal space in the bbox. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
778 if (x0 < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
779 x0 = 0; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
780 |
22331
b81b08cc4c83
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parents:
22326
diff
changeset
|
781 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
782 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
783 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
784 unsigned char pix = bitmap.buffer[r*bitmap.width+c]; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
785 if (x0+c < 0 || x0+c >= pixels.dim2 () |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
786 || y0-r < 0 || y0-r >= pixels.dim3 ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
787 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
788 //::warning ("ft_text_renderer: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)", |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
789 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
790 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
791 else if (pixels(3, x0+c, y0-r).value () == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
792 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
793 pixels(0, x0+c, y0-r) = color(0); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
794 pixels(1, x0+c, y0-r) = color(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
795 pixels(2, x0+c, y0-r) = color(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
796 pixels(3, x0+c, y0-r) = pix; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
797 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
798 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
799 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
800 xoffset += (face->glyph->advance.x >> 6); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
801 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
802 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
803 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
804 case MODE_BBOX: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
805 if (code == '\n') |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
806 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
807 glyph_index = FT_Get_Char_Index (face, ' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
808 if (! glyph_index |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
809 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
810 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
811 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
812 warn_missing_glyph (' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
813 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
814 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
815 push_new_line (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
816 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
817 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
818 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
819 Matrix& bb = line_bbox.back (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
820 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
821 // If we have a previous glyph, use kerning information. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
822 // This usually means moving a bit backward before adding |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
823 // the next glyph. That is, "delta.x" is usually < 0. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
824 if (previous) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
825 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
826 FT_Vector delta; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
827 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
828 FT_Get_Kerning (face, previous, glyph_index, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
829 FT_KERNING_DEFAULT, &delta); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
830 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
831 xoffset += (delta.x >> 6); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
832 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
833 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
834 // Extend current X offset box by the width of the current |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
835 // glyph. Then extend the line bounding box if necessary. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
836 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
837 xoffset += (face->glyph->advance.x >> 6); |
23696
08036a7f3660
remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
23577
diff
changeset
|
838 bb(2) = math::max (bb(2), xoffset); |
22331
b81b08cc4c83
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parents:
22326
diff
changeset
|
839 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
840 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
841 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
842 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
843 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
844 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
845 return glyph_index; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
846 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
847 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
848 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
849 ft_text_renderer::text_to_strlist (const std::string& txt, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
850 std::list<text_renderer::string>& lst, |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
851 Matrix& box, |
b81b08cc4c83
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parents:
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diff
changeset
|
852 int ha, int va, double rot, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
853 const caseless_str& interp) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
854 { |
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855 uint8NDArray pxls; |
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|
856 |
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857 // First run text_to_pixels which will also build the string list |
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changeset
|
858 |
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changeset
|
859 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false); |
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|
860 |
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861 lst = strlist; |
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862 } |
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|
863 |
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864 void |
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|
865 ft_text_renderer::visit (text_element_string& e) |
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866 { |
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|
867 if (font.is_valid ()) |
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868 { |
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869 FT_UInt glyph_index, previous = 0; |
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870 |
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871 std::string str = e.string_value (); |
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872 size_t n = str.length (); |
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changeset
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873 size_t curr = 0; |
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874 size_t idx = 0; |
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changeset
|
875 mbstate_t ps; |
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876 memset (&ps, 0, sizeof (ps)); // Initialize state to 0. |
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changeset
|
877 wchar_t wc; |
24076
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improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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diff
changeset
|
878 std::string fname = font.get_face ()->family_name; |
22331
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|
879 text_renderer::string fs (str, font, xoffset, yoffset); |
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Pantxo Diribarne <pantxo.diribarne@gmail.com>
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changeset
|
880 std::vector<double> xdata; |
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|
881 |
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changeset
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882 while (n > 0) |
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|
883 { |
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|
884 size_t r = std::mbrtowc (&wc, str.data () + curr, n, &ps); |
21209
67d2965af0b5
revamp text rendering classes
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changeset
|
885 |
22331
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|
886 if (r > 0 |
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changeset
|
887 && r != static_cast<size_t> (-1) |
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changeset
|
888 && r != static_cast<size_t> (-2)) |
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maint: Indent namespaces in more files.
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|
889 { |
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changeset
|
890 n -= r; |
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changeset
|
891 curr += r; |
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maint: Indent namespaces in more files.
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|
892 |
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changeset
|
893 if (wc == L'\n') |
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|
894 { |
24076
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improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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diff
changeset
|
895 // Finish previous string in strlist before processing |
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896 // the newline character |
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maint: Indent namespaces in more files.
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|
897 fs.set_y (line_yoffset + yoffset); |
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|
898 fs.set_color (color); |
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|
899 std::string s = str.substr (idx, curr - idx - 1); |
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|
900 if (! s.empty ()) |
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|
901 { |
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changeset
|
902 fs.set_string (s); |
24076
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improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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23807
diff
changeset
|
903 fs.set_xdata (xdata); |
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
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diff
changeset
|
904 fs.set_family (fname); |
22331
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|
905 strlist.push_back (fs); |
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changeset
|
906 } |
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changeset
|
907 } |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
908 else |
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
909 xdata.push_back (xoffset); |
22331
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changeset
|
910 |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
911 glyph_index = process_character (wc, previous); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
912 |
22331
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diff
changeset
|
913 if (wc == L'\n') |
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diff
changeset
|
914 { |
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diff
changeset
|
915 previous = 0; |
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maint: Indent namespaces in more files.
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diff
changeset
|
916 // Start a new string in strlist |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
917 idx = curr; |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
918 xdata.clear (); |
22331
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diff
changeset
|
919 fs = text_renderer::string (str.substr (idx), font, |
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maint: Indent namespaces in more files.
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diff
changeset
|
920 line_xoffset, yoffset); |
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maint: Indent namespaces in more files.
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changeset
|
921 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
922 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
923 previous = glyph_index; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
924 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
925 else |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
926 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
927 if (r != 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
928 ::warning ("ft_text_renderer: failed to decode string `%s' with " |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
929 "locale `%s'", str.c_str (), |
23795
980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents:
23696
diff
changeset
|
930 std::setlocale (LC_CTYPE, nullptr)); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
931 break; |
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maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
932 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
933 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
934 |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
935 if (! fs.get_string ().empty ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
936 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
937 fs.set_y (line_yoffset + yoffset); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
938 fs.set_color (color); |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
939 fs.set_xdata (xdata); |
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
940 fs.set_family (fname); |
22331
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diff
changeset
|
941 strlist.push_back (fs); |
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maint: Indent namespaces in more files.
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diff
changeset
|
942 } |
b81b08cc4c83
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parents:
22326
diff
changeset
|
943 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
944 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
945 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
946 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
947 ft_text_renderer::visit (text_element_list& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
948 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
949 // Save and restore (after processing the list) the current font and color. |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
950 |
22331
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maint: Indent namespaces in more files.
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diff
changeset
|
951 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
952 uint8NDArray saved_color (color); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
953 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
954 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
955 |
b81b08cc4c83
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parents:
22326
diff
changeset
|
956 font = saved_font; |
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maint: Indent namespaces in more files.
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diff
changeset
|
957 color = saved_color; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
958 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
959 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
960 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
961 ft_text_renderer::visit (text_element_subscript& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
962 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
963 ft_font saved_font (font); |
b81b08cc4c83
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parents:
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diff
changeset
|
964 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
965 int saved_yoffset = yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
966 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
967 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
968 font.get_size () - 2); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
969 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
970 if (font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
971 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
972 int h = font.get_face ()->size->metrics.height >> 6; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
973 |
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|
974 // Shifting the baseline by 2/3 the font height seems to produce |
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|
975 // decent result. |
b81b08cc4c83
maint: Indent namespaces in more files.
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|
976 yoffset -= (h * 2) / 3; |
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|
977 |
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|
978 if (mode == MODE_BBOX) |
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|
979 update_line_bbox (); |
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|
980 } |
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|
981 |
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changeset
|
982 text_processor::visit (e); |
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changeset
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983 |
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changeset
|
984 font = saved_font; |
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changeset
|
985 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
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986 // cannot be restored, because the saved value is not relevant anymore. |
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maint: Indent namespaces in more files.
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changeset
|
987 if (line_yoffset == saved_line_yoffset) |
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changeset
|
988 yoffset = saved_yoffset; |
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changeset
|
989 } |
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|
990 |
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|
991 void |
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|
992 ft_text_renderer::visit (text_element_superscript& e) |
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|
993 { |
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|
994 ft_font saved_font (font); |
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diff
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|
995 int saved_line_yoffset = line_yoffset; |
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diff
changeset
|
996 int saved_yoffset = yoffset; |
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
997 |
22331
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changeset
|
998 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
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|
999 font.get_size () - 2); |
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diff
changeset
|
1000 |
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changeset
|
1001 if (saved_font.is_valid ()) |
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|
1002 { |
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changeset
|
1003 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6; |
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changeset
|
1004 |
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changeset
|
1005 // Shifting the baseline by 2/3 base font ascender seems to produce |
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changeset
|
1006 // decent result. |
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diff
changeset
|
1007 yoffset += (s_asc * 2) / 3; |
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changeset
|
1008 |
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|
1009 if (mode == MODE_BBOX) |
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changeset
|
1010 update_line_bbox (); |
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|
1011 } |
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changeset
|
1012 |
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|
1013 text_processor::visit (e); |
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|
1014 |
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changeset
|
1015 font = saved_font; |
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changeset
|
1016 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
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|
1017 // cannot be restored, because the saved value is not relevant anymore. |
b81b08cc4c83
maint: Indent namespaces in more files.
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|
1018 if (line_yoffset == saved_line_yoffset) |
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diff
changeset
|
1019 yoffset = saved_yoffset; |
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diff
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|
1020 } |
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diff
changeset
|
1021 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1022 void |
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parents:
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diff
changeset
|
1023 ft_text_renderer::visit (text_element_color& e) |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1024 { |
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changeset
|
1025 if (mode == MODE_RENDER) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1026 set_color (e.get_color ()); |
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diff
changeset
|
1027 } |
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diff
changeset
|
1028 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1029 void |
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parents:
22326
diff
changeset
|
1030 ft_text_renderer::visit (text_element_fontsize& e) |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1031 { |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1032 double sz = e.get_fontsize (); |
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maint: Indent namespaces in more files.
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changeset
|
1033 |
b81b08cc4c83
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diff
changeset
|
1034 // FIXME: Matlab documentation says that the font size is expressed |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1035 // in the text object FontUnit. |
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diff
changeset
|
1036 |
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diff
changeset
|
1037 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1038 |
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maint: Indent namespaces in more files.
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diff
changeset
|
1039 if (mode == MODE_BBOX) |
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John W. Eaton <jwe@octave.org>
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changeset
|
1040 update_line_bbox (); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1041 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
1042 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1043 void |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1044 ft_text_renderer::visit (text_element_fontname& e) |
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maint: Indent namespaces in more files.
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diff
changeset
|
1045 { |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1046 set_font (e.get_fontname (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1047 font.get_size ()); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1048 |
22331
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|
1049 if (mode == MODE_BBOX) |
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John W. Eaton <jwe@octave.org>
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changeset
|
1050 update_line_bbox (); |
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diff
changeset
|
1051 } |
b81b08cc4c83
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diff
changeset
|
1052 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1053 void |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1054 ft_text_renderer::visit (text_element_fontstyle& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1055 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1056 switch (e.get_fontstyle ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1057 { |
b81b08cc4c83
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diff
changeset
|
1058 case text_element_fontstyle::normal: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1059 set_font (font.get_name (), "normal", "normal", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1060 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1061 |
b81b08cc4c83
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diff
changeset
|
1062 case text_element_fontstyle::bold: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1063 set_font (font.get_name (), "bold", "normal", font.get_size ()); |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1064 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1065 |
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22326
diff
changeset
|
1066 case text_element_fontstyle::italic: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1067 set_font (font.get_name (), "normal", "italic", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1068 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1069 |
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diff
changeset
|
1070 case text_element_fontstyle::oblique: |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1071 set_font (font.get_name (), "normal", "oblique", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1072 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1073 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1074 |
b81b08cc4c83
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diff
changeset
|
1075 if (mode == MODE_BBOX) |
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maint: Indent namespaces in more files.
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diff
changeset
|
1076 update_line_bbox (); |
b81b08cc4c83
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diff
changeset
|
1077 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1078 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1079 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1080 ft_text_renderer::visit (text_element_symbol& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1081 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1082 uint32_t code = e.get_symbol_code (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1083 |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
1084 std::vector<double> xdata (1, xoffset); |
23807
336f89b6208b
Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents:
23795
diff
changeset
|
1085 text_renderer::string fs ("-", font, xoffset, yoffset); |
22331
b81b08cc4c83
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diff
changeset
|
1086 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1087 if (code != text_element_symbol::invalid_code && font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1088 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1089 process_character (code); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1090 fs.set_code (code); |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
1091 fs.set_xdata (xdata); |
22331
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diff
changeset
|
1092 } |
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|
1093 else if (font.is_valid ()) |
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1094 ::warning ("ignoring unknown symbol: %d", e.get_symbol ()); |
21209
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revamp text rendering classes
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diff
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|
1095 |
22331
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1096 if (fs.get_code ()) |
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1097 { |
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1098 fs.set_y (line_yoffset + yoffset); |
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|
1099 fs.set_color (color); |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
1100 fs.set_family (font.get_face ()->family_name); |
22331
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1101 strlist.push_back (fs); |
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1102 } |
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|
1103 } |
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1104 |
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|
1105 void |
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|
1106 ft_text_renderer::visit (text_element_combined& e) |
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|
1107 { |
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1108 int saved_xoffset = xoffset; |
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1109 int max_xoffset = xoffset; |
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changeset
|
1110 |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
1111 for (auto *txt_elt : e) |
22331
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1112 { |
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|
1113 xoffset = saved_xoffset; |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
1114 txt_elt->accept (*this); |
23696
08036a7f3660
remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
23577
diff
changeset
|
1115 max_xoffset = math::max (xoffset, max_xoffset); |
22331
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1116 } |
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|
1117 |
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1118 xoffset = max_xoffset; |
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|
1119 } |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
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diff
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|
1120 |
22331
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1121 void |
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1122 ft_text_renderer::reset (void) |
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|
1123 { |
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|
1124 set_mode (MODE_BBOX); |
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|
1125 set_color (Matrix (1, 3, 0.0)); |
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|
1126 } |
21209
67d2965af0b5
revamp text rendering classes
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|
1127 |
22331
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|
1128 void |
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changeset
|
1129 ft_text_renderer::set_color (const Matrix& c) |
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|
1130 { |
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1131 if (c.numel () == 3) |
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|
1132 { |
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1133 color(0) = static_cast<uint8_t> (c(0)*255); |
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|
1134 color(1) = static_cast<uint8_t> (c(1)*255); |
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|
1135 color(2) = static_cast<uint8_t> (c(2)*255); |
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|
1136 } |
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|
1137 else |
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|
1138 ::warning ("ft_text_renderer::set_color: invalid color"); |
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|
1139 } |
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changeset
|
1140 |
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changeset
|
1141 uint8NDArray |
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changeset
|
1142 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation) |
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|
1143 { |
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|
1144 set_mode (MODE_BBOX); |
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|
1145 elt->accept (*this); |
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|
1146 compute_bbox (); |
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|
1147 box = bbox; |
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changeset
|
1148 |
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changeset
|
1149 set_mode (MODE_RENDER); |
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changeset
|
1150 // Clear the list of parsed strings |
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|
1151 strlist.clear (); |
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|
1152 |
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maint: Indent namespaces in more files.
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|
1153 if (pixels.numel () > 0) |
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|
1154 { |
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changeset
|
1155 elt->accept (*this); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1156 |
22331
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|
1157 switch (rotation) |
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|
1158 { |
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changeset
|
1159 case ROTATION_0: |
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changeset
|
1160 break; |
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changeset
|
1161 |
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|
1162 case ROTATION_90: |
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|
1163 { |
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changeset
|
1164 Array<octave_idx_type> perm (dim_vector (3, 1)); |
b81b08cc4c83
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diff
changeset
|
1165 perm(0) = 0; |
b81b08cc4c83
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changeset
|
1166 perm(1) = 2; |
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changeset
|
1167 perm(2) = 1; |
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|
1168 pixels = pixels.permute (perm); |
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changeset
|
1169 |
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changeset
|
1170 Array<idx_vector> idx (dim_vector (3, 1)); |
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changeset
|
1171 idx(0) = idx_vector (':'); |
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|
1172 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
b81b08cc4c83
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changeset
|
1173 idx(2) = idx_vector (':'); |
b81b08cc4c83
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changeset
|
1174 pixels = uint8NDArray (pixels.index (idx)); |
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diff
changeset
|
1175 } |
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parents:
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diff
changeset
|
1176 break; |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1177 |
22331
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changeset
|
1178 case ROTATION_180: |
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changeset
|
1179 { |
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changeset
|
1180 Array<idx_vector> idx (dim_vector (3, 1)); |
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|
1181 idx(0) = idx_vector (':'); |
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changeset
|
1182 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
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changeset
|
1183 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
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changeset
|
1184 pixels = uint8NDArray (pixels.index (idx)); |
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changeset
|
1185 } |
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changeset
|
1186 break; |
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changeset
|
1187 |
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changeset
|
1188 case ROTATION_270: |
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changeset
|
1189 { |
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changeset
|
1190 Array<octave_idx_type> perm (dim_vector (3, 1)); |
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changeset
|
1191 perm(0) = 0; |
b81b08cc4c83
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|
1192 perm(1) = 2; |
b81b08cc4c83
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changeset
|
1193 perm(2) = 1; |
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|
1194 pixels = pixels.permute (perm); |
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changeset
|
1195 |
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changeset
|
1196 Array<idx_vector> idx (dim_vector (3, 1)); |
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|
1197 idx(0) = idx_vector (':'); |
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changeset
|
1198 idx(1) = idx_vector (':'); |
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|
1199 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
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|
1200 pixels = uint8NDArray (pixels.index (idx)); |
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changeset
|
1201 } |
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changeset
|
1202 break; |
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changeset
|
1203 } |
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changeset
|
1204 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1205 |
22331
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changeset
|
1206 return pixels; |
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changeset
|
1207 } |
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changeset
|
1208 |
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changeset
|
1209 // Note: |
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changeset
|
1210 // x-extent accurately measures width of glyphs. |
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changeset
|
1211 // y-extent is overly large because it is measured from baseline-to-baseline. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1212 // Calling routines, such as ylabel, may need to account for this mismatch. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1213 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1214 Matrix |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1215 ft_text_renderer::get_extent (text_element *elt, double rotation) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1216 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1217 set_mode (MODE_BBOX); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1218 elt->accept (*this); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1219 compute_bbox (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1220 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1221 Matrix extent (1, 2, 0.0); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1222 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1223 switch (rotation_to_mode (rotation)) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1224 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1225 case ROTATION_0: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1226 case ROTATION_180: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1227 extent(0) = bbox(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1228 extent(1) = bbox(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1229 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1230 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1231 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1232 case ROTATION_270: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1233 extent(0) = bbox(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1234 extent(1) = bbox(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1235 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1236 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1237 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1238 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1239 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1240 Matrix |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1241 ft_text_renderer::get_extent (const std::string& txt, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1242 const caseless_str& interpreter) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1243 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1244 text_element *elt = text_parser::parse (txt, interpreter); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1245 Matrix extent = get_extent (elt, rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1246 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1247 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1248 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1249 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1250 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1251 int |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1252 ft_text_renderer::rotation_to_mode (double rotation) const |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1253 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1254 // Clip rotation to range [0, 360] |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1255 while (rotation < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1256 rotation += 360.0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1257 while (rotation > 360.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1258 rotation -= 360.0; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1259 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1260 if (rotation == 0.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1261 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1262 else if (rotation == 90.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1263 return ROTATION_90; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1264 else if (rotation == 180.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1265 return ROTATION_180; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1266 else if (rotation == 270.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1267 return ROTATION_270; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1268 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1269 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1270 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1271 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1272 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1273 ft_text_renderer::text_to_pixels (const std::string& txt, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1274 uint8NDArray& pxls, Matrix& box, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1275 int _halign, int valign, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1276 const caseless_str& interpreter, |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1277 bool handle_rotation) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1278 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1279 int rot_mode = rotation_to_mode (rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1280 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1281 halign = _halign; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1282 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1283 text_element *elt = text_parser::parse (txt, interpreter); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1284 pxls = render (elt, box, rot_mode); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1285 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1286 |
23577
80c42f4cca13
maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents:
23462
diff
changeset
|
1287 if (pxls.isempty ()) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1288 return; // nothing to render |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1289 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1290 switch (halign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1291 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1292 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1293 box(0) = -box(2)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1294 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1295 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1296 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1297 box(0) = -box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1298 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1299 |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1300 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1301 box(0) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1302 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1303 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1304 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1305 switch (valign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1306 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1307 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1308 box(1) = -box(3)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1309 break; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1310 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1311 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1312 box(1) = -box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1313 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1314 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1315 case 3: |
b81b08cc4c83
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diff
changeset
|
1316 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1317 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1318 case 4: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1319 box(1) = -box(3)-box(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1320 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1321 |
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maint: Indent namespaces in more files.
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diff
changeset
|
1322 default: |
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diff
changeset
|
1323 box(1) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1324 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1325 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1326 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1327 if (handle_rotation) |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1328 { |
22331
b81b08cc4c83
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diff
changeset
|
1329 switch (rot_mode) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1330 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1331 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1332 std::swap (box(0), box(1)); |
b81b08cc4c83
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diff
changeset
|
1333 std::swap (box(2), box(3)); |
b81b08cc4c83
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diff
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|
1334 box(0) = -box(0)-box(2); |
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|
1335 break; |
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diff
changeset
|
1336 |
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changeset
|
1337 case ROTATION_180: |
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|
1338 box(0) = -box(0)-box(2); |
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|
1339 box(1) = -box(1)-box(3); |
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|
1340 break; |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
1341 |
22331
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|
1342 case ROTATION_270: |
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|
1343 std::swap (box(0), box(1)); |
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|
1344 std::swap (box(2), box(3)); |
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|
1345 box(1) = -box(1)-box(3); |
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diff
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|
1346 break; |
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diff
changeset
|
1347 } |
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changeset
|
1348 } |
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|
1349 } |
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parents:
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changeset
|
1350 |
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changeset
|
1351 ft_text_renderer::ft_font::ft_font (const ft_font& ft) |
23795
980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents:
23696
diff
changeset
|
1352 : text_renderer::font (ft), face (nullptr) |
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|
1353 { |
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|
1354 #if defined (HAVE_FT_REFERENCE_FACE) |
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|
1355 FT_Face ft_face = ft.get_face (); |
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|
1356 |
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|
1357 if (ft_face && FT_Reference_Face (ft_face) == 0) |
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|
1358 face = ft_face; |
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|
1359 #endif |
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|
1360 } |
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|
1361 |
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|
1362 ft_text_renderer::ft_font& |
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|
1363 ft_text_renderer::ft_font::operator = (const ft_font& ft) |
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|
1364 { |
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|
1365 if (&ft != this) |
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|
1366 { |
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changeset
|
1367 text_renderer::font::operator = (ft); |
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cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
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diff
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|
1368 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1369 if (face) |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
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|
1370 { |
22331
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|
1371 FT_Done_Face (face); |
23795
980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents:
23696
diff
changeset
|
1372 face = nullptr; |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1373 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1374 |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
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21200
diff
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|
1375 #if defined (HAVE_FT_REFERENCE_FACE) |
22331
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|
1376 FT_Face ft_face = ft.get_face (); |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
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diff
changeset
|
1377 |
22331
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|
1378 if (ft_face && FT_Reference_Face (ft_face) == 0) |
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|
1379 face = ft_face; |
17330
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Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
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diff
changeset
|
1380 #endif |
22331
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|
1381 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1382 |
22331
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|
1383 return *this; |
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|
1384 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
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diff
changeset
|
1385 |
22331
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|
1386 FT_Face |
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|
1387 ft_text_renderer::ft_font::get_face (void) const |
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|
1388 { |
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|
1389 if (! face && ! name.empty ()) |
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changeset
|
1390 { |
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|
1391 face = ft_manager::get_font (name, weight, angle, size); |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1392 |
22331
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|
1393 if (face) |
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|
1394 { |
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|
1395 if (FT_Set_Char_Size (face, 0, size*64, 0, 0)) |
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|
1396 ::warning ("ft_text_renderer: unable to set font size to %g", size); |
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|
1397 } |
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changeset
|
1398 else |
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changeset
|
1399 ::warning ("ft_text_renderer: unable to load appropriate font"); |
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|
1400 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1401 |
22331
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|
1402 return face; |
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changeset
|
1403 } |
22326
71dd9d5a5ecd
move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
1404 } |
71dd9d5a5ecd
move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
1405 |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
20715
diff
changeset
|
1406 #endif |
21209
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revamp text rendering classes
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parents:
21200
diff
changeset
|
1407 |
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22323
diff
changeset
|
1408 namespace octave |
21209
67d2965af0b5
revamp text rendering classes
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parents:
21200
diff
changeset
|
1409 { |
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diff
changeset
|
1410 base_text_renderer * |
71dd9d5a5ecd
move more new classes inside octave namespace
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22323
diff
changeset
|
1411 make_ft_text_renderer (void) |
71dd9d5a5ecd
move more new classes inside octave namespace
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|
1412 { |
21209
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diff
changeset
|
1413 #if defined (HAVE_FREETYPE) |
22326
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diff
changeset
|
1414 return new ft_text_renderer (); |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
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21200
diff
changeset
|
1415 #else |
22326
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move more new classes inside octave namespace
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22323
diff
changeset
|
1416 return 0; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1417 #endif |
22326
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|
1418 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
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21200
diff
changeset
|
1419 } |