Mercurial > octave
annotate libinterp/corefcn/ft-text-renderer.cc @ 26858:0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
* NEWS: Announce new property.
* base-text-renderer.h (base_text_renderer::set_anti_aliasing): New pure virtual
method
* ft-text-renderer.[h,cc] (text_renderer::m_antialias): New bool data member.
(ft_text_renderer::set_anti_aliasing): Implement
base_text_renderer::set_anti_aliasing.
(is_opaque): New function to determine if a pixel is opaque.
(ft_text_renderer::process_charater): Render glyph monochrome or antialiased
depending on m_antialias.
* text-renderer.[h,cc] (text_renderer::set_anti_aliasing): New method.
* graphics.in.h (axes::properties::fontsmoothing): Add "u" and corresponding
updater.
(text::properties::fontsmoothing,text::properties::update_fontsmoothing): New
property and corresponding updater.
* grpahics.cc (text::properties::update_font): Update the text_renderer
anti-aliasing.
* grpahics.cc (opengl_renderer::set_font): Update the text-renderer
anti-aliasing.
* genpropdoc: Document "fontsmoothnig" property.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
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date | Tue, 05 Mar 2019 13:51:16 +0100 |
parents | c9e5a09af7af |
children | ab5bfee22d18 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2016-2019 John W. Eaton |
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4 Copyright (C) 2009-2019 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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28 #include "base-text-renderer.h" |
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29 #include "ft-text-renderer.h" |
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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 #include FT_GLYPH_H |
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42 #if defined (HAVE_FONTCONFIG) |
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43 # include <fontconfig/fontconfig.h> |
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44 #endif |
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46 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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47 # pragma GCC diagnostic pop |
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48 #endif |
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49 |
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50 #include <clocale> |
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51 #include <cwchar> |
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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 #include "unistr-wrappers.h" |
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57 |
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58 #include "defaults.h" |
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59 #include "error.h" |
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60 #include "file-ops.h" |
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61 #include "oct-env.h" |
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62 #include "pr-output.h" |
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63 #include "text-renderer.h" |
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64 |
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65 namespace octave |
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66 { |
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67 // FIXME: maybe issue at most one warning per glyph/font/size/weight |
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68 // combination. |
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69 |
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70 static void |
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71 warn_missing_glyph (FT_ULong c) |
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72 { |
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73 warning_with_id ("Octave:missing-glyph", |
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74 "text_renderer: skipping missing glyph for character '%lx'", c); |
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75 } |
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76 |
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77 static void |
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78 warn_glyph_render (FT_ULong c) |
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79 { |
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80 warning_with_id ("Octave:glyph-render", |
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81 "text_renderer: unable to render glyph for character '%lx'", c); |
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82 } |
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83 |
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84 #if defined (_MSC_VER) |
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85 // FIXME: is this really needed? |
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86 // |
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87 // This is just a trick to avoid multiple symbol definitions. |
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88 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type> |
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89 // that will cause MSVC not to generate a new instantiation and |
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90 // use the imported one instead. |
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91 # include "PermMatrix.h" |
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92 #endif |
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94 // Forward declaration |
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95 static void ft_face_destroyed (void *object); |
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97 class |
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98 ft_manager |
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99 { |
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100 private: |
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101 |
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102 ft_manager (void) |
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103 : library (), freetype_initialized (false), fontconfig_initialized (false) |
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104 { |
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105 if (FT_Init_FreeType (&library)) |
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106 error ("unable to initialize FreeType library"); |
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107 else |
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108 freetype_initialized = true; |
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109 |
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110 #if defined (HAVE_FONTCONFIG) |
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111 if (! FcInit ()) |
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112 error ("unable to initialize fontconfig library"); |
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113 else |
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114 fontconfig_initialized = true; |
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115 #endif |
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116 } |
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117 |
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118 public: |
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119 |
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120 // No copying! |
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121 |
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122 ft_manager (const ft_manager&) = delete; |
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123 |
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124 ft_manager& operator = (const ft_manager&) = delete; |
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125 |
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126 private: |
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127 |
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128 ~ft_manager (void) |
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129 { |
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130 if (freetype_initialized) |
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131 FT_Done_FreeType (library); |
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132 |
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133 #if defined (HAVE_FONTCONFIG) |
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134 // FIXME: Skip the call to FcFini because it can trigger the assertion |
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135 // |
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136 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed. |
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137 // |
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138 // if (fontconfig_initialized) |
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139 // FcFini (); |
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140 #endif |
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141 } |
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142 |
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143 public: |
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144 |
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145 static bool instance_ok (void) |
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146 { |
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147 bool retval = true; |
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148 |
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149 if (! instance) |
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150 { |
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151 instance = new ft_manager (); |
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152 singleton_cleanup_list::add (cleanup_instance); |
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153 } |
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154 |
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155 return retval; |
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156 } |
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157 |
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158 static void cleanup_instance (void) { delete instance; instance = nullptr; } |
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159 |
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160 static FT_Face get_font (const std::string& name, const std::string& weight, |
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161 const std::string& angle, double size) |
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162 { |
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163 return (instance_ok () |
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164 ? instance->do_get_font (name, weight, angle, size) |
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165 : nullptr); |
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166 } |
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167 |
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168 static void font_destroyed (FT_Face face) |
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169 { |
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170 if (instance_ok ()) |
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171 instance->do_font_destroyed (face); |
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172 } |
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173 |
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174 private: |
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175 |
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176 static ft_manager *instance; |
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177 |
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178 typedef std::pair<std::string, double> ft_key; |
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179 typedef std::map<ft_key, FT_Face> ft_cache; |
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180 |
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181 // Cache the fonts loaded by FreeType. This cache only contains |
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182 // weak references to the fonts, strong references are only present |
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183 // in class text_renderer. |
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184 ft_cache cache; |
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185 |
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186 FT_Face do_get_font (const std::string& name, const std::string& weight, |
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187 const std::string& angle, double size) |
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188 { |
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189 FT_Face retval = nullptr; |
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190 |
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191 #if defined (HAVE_FT_REFERENCE_FACE) |
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192 // Look first into the font cache, then use fontconfig. If the font |
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193 // is present in the cache, simply add a reference and return it. |
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194 |
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195 ft_key key (name + ':' + weight + ':' + angle, size); |
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196 ft_cache::const_iterator it = cache.find (key); |
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197 |
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198 if (it != cache.end ()) |
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199 { |
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200 FT_Reference_Face (it->second); |
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201 return it->second; |
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202 } |
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203 #endif |
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204 |
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205 static std::string fonts_dir; |
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206 |
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207 if (fonts_dir.empty ()) |
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208 { |
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209 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR"); |
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210 |
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211 if (fonts_dir.empty ()) |
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212 #if defined (SYSTEM_FREEFONT_DIR) |
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213 fonts_dir = SYSTEM_FREEFONT_DIR; |
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214 #else |
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215 fonts_dir = config::oct_fonts_dir (); |
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216 #endif |
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217 } |
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218 |
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219 |
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220 // Default font file |
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221 std::string file; |
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222 |
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223 if (! fonts_dir.empty ()) |
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224 { |
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225 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans"; |
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226 |
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227 if (weight == "bold") |
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228 file += "Bold"; |
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229 |
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230 if (angle == "italic" || angle == "oblique") |
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231 file += "Oblique"; |
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232 |
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233 file += ".otf"; |
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234 } |
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235 |
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236 #if defined (HAVE_FONTCONFIG) |
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237 if (name != "*" && fontconfig_initialized) |
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238 { |
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239 int fc_weight, fc_angle; |
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240 |
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241 if (weight == "bold") |
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242 fc_weight = FC_WEIGHT_BOLD; |
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243 else |
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244 fc_weight = FC_WEIGHT_NORMAL; |
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245 |
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246 if (angle == "italic") |
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247 fc_angle = FC_SLANT_ITALIC; |
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248 else if (angle == "oblique") |
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249 fc_angle = FC_SLANT_OBLIQUE; |
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250 else |
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251 fc_angle = FC_SLANT_ROMAN; |
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252 |
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253 FcPattern *pat = FcPatternCreate (); |
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254 |
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255 FcPatternAddString (pat, FC_FAMILY, |
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256 (reinterpret_cast<const FcChar8 *> |
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257 (name.c_str ()))); |
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258 |
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259 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight); |
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260 FcPatternAddInteger (pat, FC_SLANT, fc_angle); |
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261 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size); |
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262 |
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263 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern)) |
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264 { |
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265 FcResult res; |
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266 FcPattern *match; |
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267 |
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268 FcDefaultSubstitute (pat); |
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269 match = FcFontMatch (nullptr, pat, &res); |
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271 // FIXME: originally, this test also required that |
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272 // res != FcResultNoMatch. Is that really needed? |
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273 if (match) |
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274 { |
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275 unsigned char *tmp; |
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276 |
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277 FcPatternGetString (match, FC_FILE, 0, &tmp); |
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278 file = reinterpret_cast<char *> (tmp); |
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279 } |
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280 else |
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281 ::warning ("could not match any font: %s-%s-%s-%g, using default font", |
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282 name.c_str (), weight.c_str (), angle.c_str (), |
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283 size); |
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284 |
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285 if (match) |
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286 FcPatternDestroy (match); |
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287 } |
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288 |
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289 FcPatternDestroy (pat); |
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290 } |
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291 #endif |
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292 |
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293 if (file.empty ()) |
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294 ::warning ("unable to find default font files"); |
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295 else |
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296 { |
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297 if (FT_New_Face (library, file.c_str (), 0, &retval)) |
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298 ::warning ("ft_manager: unable to load font: %s", file.c_str ()); |
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299 #if defined (HAVE_FT_REFERENCE_FACE) |
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300 else |
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301 { |
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302 // Install a finalizer to notify ft_manager that the font is |
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303 // being destroyed. The class ft_manager only keeps weak |
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304 // references to font objects. |
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305 |
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306 retval->generic.data = new ft_key (key); |
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307 retval->generic.finalizer = ft_face_destroyed; |
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308 |
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309 // Insert loaded font into the cache. |
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310 |
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311 cache[key] = retval; |
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312 } |
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313 #endif |
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314 } |
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315 |
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316 return retval; |
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317 } |
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318 |
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319 void do_font_destroyed (FT_Face face) |
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320 { |
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321 if (face->generic.data) |
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322 { |
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323 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data); |
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324 |
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325 cache.erase (*pkey); |
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326 delete pkey; |
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327 face->generic.data = nullptr; |
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328 } |
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329 } |
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330 |
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331 private: |
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332 FT_Library library; |
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333 bool freetype_initialized; |
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334 bool fontconfig_initialized; |
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335 }; |
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336 |
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337 ft_manager *ft_manager::instance = nullptr; |
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338 |
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339 static void |
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340 ft_face_destroyed (void *object) |
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341 { |
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342 ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object)); |
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343 } |
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344 |
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345 class |
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346 OCTINTERP_API |
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347 ft_text_renderer : public base_text_renderer |
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348 { |
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349 public: |
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350 |
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351 enum |
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352 { |
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353 MODE_BBOX = 0, |
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354 MODE_RENDER = 1 |
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355 }; |
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356 |
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357 enum |
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358 { |
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359 ROTATION_0 = 0, |
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360 ROTATION_90 = 1, |
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361 ROTATION_180 = 2, |
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362 ROTATION_270 = 3 |
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363 }; |
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364 |
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365 public: |
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366 |
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367 ft_text_renderer (void) |
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368 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0), |
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369 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX), |
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370 color (dim_vector (1, 3), 0), m_do_strlist (false), m_strlist (), |
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371 line_xoffset (0), m_ymin (0), m_ymax (0), m_deltax (0), |
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372 m_max_fontsize (0), m_antialias (true) |
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373 { } |
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374 |
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375 // No copying! |
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376 |
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377 ft_text_renderer (const ft_text_renderer&) = delete; |
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378 |
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379 ft_text_renderer& operator = (const ft_text_renderer&) = delete; |
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380 |
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381 ~ft_text_renderer (void) = default; |
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382 |
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383 void visit (text_element_string& e); |
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384 |
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385 void visit (text_element_list& e); |
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386 |
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387 void visit (text_element_subscript& e); |
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388 |
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389 void visit (text_element_superscript& e); |
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390 |
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391 void visit (text_element_color& e); |
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392 |
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393 void visit (text_element_fontsize& e); |
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394 |
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395 void visit (text_element_fontname& e); |
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396 |
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397 void visit (text_element_fontstyle& e); |
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398 |
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399 void visit (text_element_symbol& e); |
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400 |
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401 void visit (text_element_combined& e); |
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402 |
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403 void reset (void); |
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404 |
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405 uint8NDArray get_pixels (void) const { return pixels; } |
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406 |
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407 Matrix get_boundingbox (void) const { return bbox; } |
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408 |
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409 uint8NDArray render (text_element *elt, Matrix& box, |
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410 int rotation = ROTATION_0); |
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411 |
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412 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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413 Matrix get_extent (const std::string& txt, double rotation, |
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414 const caseless_str& interpreter); |
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415 |
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416 void set_anti_aliasing (bool val) { m_antialias = val; }; |
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417 |
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418 void set_font (const std::string& name, const std::string& weight, |
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419 const std::string& angle, double size); |
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420 |
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421 void set_color (const Matrix& c); |
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422 |
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423 void set_mode (int m); |
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424 |
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425 void text_to_pixels (const std::string& txt, |
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426 uint8NDArray& pxls, Matrix& bbox, |
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427 int halign, int valign, double rotation, |
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428 const caseless_str& interpreter, |
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429 bool handle_rotation); |
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430 |
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431 private: |
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432 |
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433 int rotation_to_mode (double rotation) const; |
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434 |
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435 // Class to hold information about fonts and a strong |
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436 // reference to the font objects loaded by FreeType. |
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437 |
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438 class ft_font : public text_renderer::font |
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439 { |
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440 public: |
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441 |
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442 ft_font (void) |
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443 : text_renderer::font (), face (nullptr) { } |
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444 |
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445 ft_font (const std::string& nm, const std::string& wt, |
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446 const std::string& ang, double sz, FT_Face f = nullptr) |
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447 : text_renderer::font (nm, wt, ang, sz), face (f) |
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448 { } |
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449 |
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450 ft_font (const ft_font& ft); |
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451 |
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452 ~ft_font (void) |
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453 { |
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454 if (face) |
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455 FT_Done_Face (face); |
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456 } |
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457 |
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458 ft_font& operator = (const ft_font& ft); |
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459 |
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460 bool is_valid (void) const { return get_face (); } |
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461 |
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462 FT_Face get_face (void) const; |
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463 |
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464 private: |
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465 |
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466 mutable FT_Face face; |
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467 }; |
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468 |
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469 void push_new_line (void); |
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470 |
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471 void update_line_bbox (void); |
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472 |
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473 void compute_bbox (void); |
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474 |
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475 int compute_line_xoffset (const Matrix& lb) const; |
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476 |
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477 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0); |
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478 |
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479 public: |
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480 |
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481 void text_to_strlist (const std::string& txt, |
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482 std::list<text_renderer::string>& lst, Matrix& bbox, |
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483 int halign, int valign, double rotation, |
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484 const caseless_str& interp); |
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485 |
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486 private: |
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487 |
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488 // The current font used by the renderer. |
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489 ft_font font; |
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490 |
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491 // Used to stored the bounding box corresponding to the rendered text. |
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492 // The bounding box has the form [x, y, w, h] where x and y represent the |
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493 // coordinates of the bottom left corner relative to the anchor point of |
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494 // the text (== start of text on the baseline). Due to font descent or |
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495 // multiple lines, the value y is usually negative. |
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496 Matrix bbox; |
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497 |
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498 // Used to stored the rendered text. It's a 3D matrix with size MxNx4 |
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499 // where M and N are the width and height of the bounding box. |
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500 uint8NDArray pixels; |
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501 |
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502 // Used to store the bounding box of each line. This is used to layout |
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503 // multiline text properly. |
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504 std::list<Matrix> line_bbox; |
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505 |
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506 // The current horizontal alignment. This is used to align multi-line text. |
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507 int halign; |
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508 |
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509 // The X offset for the next glyph. |
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510 int xoffset; |
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511 |
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512 // The Y offset of the baseline for the current line. |
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513 int line_yoffset; |
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514 |
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515 // The Y offset of the baseline for the next glyph. The offset is relative |
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516 // to line_yoffset. The total Y offset is computed with: |
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517 // line_yoffset + yoffset. |
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518 int yoffset; |
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519 |
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520 // The current mode of the rendering process (box computing or rendering). |
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521 int mode; |
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522 |
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523 // The base color of the rendered text. |
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524 uint8NDArray color; |
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525 |
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526 // A list of parsed strings to be used for printing. |
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527 bool m_do_strlist; |
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528 std::list<text_renderer::string> m_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 // Min and max y coordinates of all glyphs in a line. |
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534 FT_Pos m_ymin; |
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535 FT_Pos m_ymax; |
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536 |
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537 // Difference between the advance and the actual extent of the latest glyph |
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538 FT_Pos m_deltax; |
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539 |
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540 // Used for computing the distance between lines. |
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541 double m_max_fontsize; |
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542 |
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543 // Anti-aliasing. |
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544 bool m_antialias; |
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545 |
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546 }; |
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547 |
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548 void |
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549 ft_text_renderer::set_font (const std::string& name, const std::string& weight, |
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550 const std::string& angle, double size) |
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551 { |
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552 // FIXME: take "fontunits" into account |
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553 |
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554 font = ft_font (name, weight, angle, size, nullptr); |
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555 } |
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556 |
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557 void |
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558 ft_text_renderer::push_new_line (void) |
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559 { |
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560 switch (mode) |
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561 { |
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562 case MODE_BBOX: |
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563 { |
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564 // Create a new bbox entry based on the current font. |
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565 |
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566 FT_Face face = font.get_face (); |
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567 |
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568 if (face) |
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569 { |
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570 Matrix bb (1, 5, 0.0); |
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571 |
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572 line_bbox.push_back (bb); |
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573 |
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574 xoffset = yoffset = 0; |
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575 m_ymin = m_ymax = m_deltax = 0; |
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576 } |
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577 } |
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578 break; |
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579 |
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580 case MODE_RENDER: |
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581 { |
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582 // Move to the next line bbox, adjust xoffset based on alignment |
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583 // and yoffset based on the old and new line bbox. |
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584 |
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585 Matrix old_bbox = line_bbox.front (); |
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586 line_bbox.pop_front (); |
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587 Matrix new_bbox = line_bbox.front (); |
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588 |
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589 xoffset = line_xoffset = compute_line_xoffset (new_bbox); |
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590 line_yoffset -= (-old_bbox(1) + math::round (0.4 * m_max_fontsize) |
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591 + (new_bbox(3) + new_bbox(1))); |
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592 yoffset = 0; |
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593 m_ymin = m_ymax = m_deltax = 0; |
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594 } |
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595 break; |
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596 } |
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597 } |
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598 |
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599 int |
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600 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const |
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601 { |
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602 if (! bbox.isempty ()) |
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603 { |
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604 switch (halign) |
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605 { |
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606 case 0: |
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607 return 0; |
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|
608 case 1: |
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609 return (bbox(2) - lb(2)) / 2; |
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610 case 2: |
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611 return (bbox(2) - lb(2)); |
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612 } |
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613 } |
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614 |
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615 return 0; |
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616 } |
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617 |
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618 void |
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619 ft_text_renderer::compute_bbox (void) |
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620 { |
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621 // Stack the various line bbox together and compute the final |
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622 // bounding box for the entire text string. |
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623 |
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624 bbox = Matrix (); |
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625 |
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626 switch (line_bbox.size ()) |
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627 { |
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628 case 0: |
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629 break; |
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630 |
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631 case 1: |
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632 bbox = line_bbox.front ().extract (0, 0, 0, 3); |
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633 break; |
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634 |
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635 default: |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
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|
636 for (const auto& lbox : line_bbox) |
22331
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637 { |
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|
638 if (bbox.isempty ()) |
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maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
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639 bbox = lbox.extract (0, 0, 0, 3); |
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640 else |
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641 { |
26221
76ac35f71573
Fix regression in multi-line text rendering (bug #55218)
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parents:
26187
diff
changeset
|
642 double delta = math::round (0.4 * m_max_fontsize) + lbox(3); |
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643 bbox(1) -= delta; |
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644 bbox(3) += delta; |
23696
08036a7f3660
remove octave:: namespace tag from symbols used inside octave namespace
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645 bbox(2) = math::max (bbox(2), lbox(2)); |
22331
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646 } |
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647 } |
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648 break; |
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649 } |
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650 } |
21209
67d2965af0b5
revamp text rendering classes
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651 |
22331
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652 void |
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653 ft_text_renderer::update_line_bbox (void) |
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654 { |
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655 // Called after a font change, when in MODE_BBOX mode, to update the |
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656 // current line bbox with the new font metrics. This also includes the |
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657 // current yoffset, that is the offset of the current glyph's baseline |
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658 // the line's baseline. |
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659 |
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660 if (mode == MODE_BBOX) |
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661 { |
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|
662 Matrix& bb = line_bbox.back (); |
26187
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Improve text extent calculation when using freetype text renderer (bug #55075)
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|
663 bb(1) = m_ymin; |
26330
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Make sure text bounding box is high enough (bug #55328).
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diff
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|
664 // Add one pixel to the bbox height to avoid occasional text clipping. |
45cf2ada3e39
Make sure text bounding box is high enough (bug #55328).
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|
665 // See bug #55328. |
45cf2ada3e39
Make sure text bounding box is high enough (bug #55328).
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|
666 bb(3) = (m_ymax + 1) - m_ymin; |
26187
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|
667 if (m_deltax > 0) |
8d4f23b7f4eb
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|
668 bb(2) += m_deltax; |
22331
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669 } |
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|
670 } |
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|
671 |
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672 void |
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673 ft_text_renderer::set_mode (int m) |
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674 { |
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675 mode = m; |
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676 |
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|
677 switch (mode) |
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|
678 { |
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|
679 case MODE_BBOX: |
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|
680 xoffset = line_yoffset = yoffset = 0; |
26187
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Improve text extent calculation when using freetype text renderer (bug #55075)
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|
681 m_max_fontsize = 0.0; |
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682 bbox = Matrix (1, 4, 0.0); |
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683 line_bbox.clear (); |
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|
684 push_new_line (); |
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|
685 break; |
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|
686 |
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|
687 case MODE_RENDER: |
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688 if (bbox.numel () != 4) |
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changeset
|
689 { |
22515
77b50a83ec11
Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
690 ::error ("ft_text_renderer: invalid bounding box, cannot render"); |
21209
67d2965af0b5
revamp text rendering classes
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21200
diff
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|
691 |
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|
692 xoffset = line_yoffset = yoffset = 0; |
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|
693 pixels = uint8NDArray (); |
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|
694 } |
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|
695 else |
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|
696 { |
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|
697 dim_vector d (4, octave_idx_type (bbox(2)), |
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|
698 octave_idx_type (bbox(3))); |
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|
699 pixels = uint8NDArray (d, static_cast<uint8_t> (0)); |
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|
700 xoffset = compute_line_xoffset (line_bbox.front ()); |
26187
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Improve text extent calculation when using freetype text renderer (bug #55075)
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|
701 line_yoffset = -bbox(1); |
22331
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|
702 yoffset = 0; |
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|
703 } |
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changeset
|
704 break; |
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changeset
|
705 |
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changeset
|
706 default: |
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|
707 error ("ft_text_renderer: invalid mode '%d'", mode); |
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changeset
|
708 break; |
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diff
changeset
|
709 } |
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diff
changeset
|
710 } |
26858
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
711 bool is_opaque (const FT_GlyphSlot &glyph, const int x, const int y) |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
712 { |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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26619
diff
changeset
|
713 // Borrowed from https://stackoverflow.com/questions/14800827/ |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
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parents:
26619
diff
changeset
|
714 // indexing-pixels-in-a-monochrome-freetype-glyph-buffer |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
715 int pitch = std::abs (glyph->bitmap.pitch); |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
716 unsigned char *row = &glyph->bitmap.buffer[pitch * y]; |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
717 char cvalue = row[x >> 3]; |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
718 |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
719 return ((cvalue & (128 >> (x & 7))) != 0); |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
720 } |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
721 |
22331
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parents:
22326
diff
changeset
|
722 FT_UInt |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
723 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
724 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
725 FT_Face face = font.get_face (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
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|
726 FT_UInt glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
727 |
b81b08cc4c83
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diff
changeset
|
728 if (face) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
729 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
730 glyph_index = FT_Get_Char_Index (face, code); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
731 |
25421
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
732 if (code != '\n' && code != '\t' |
22331
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changeset
|
733 && (! glyph_index |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
734 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))) |
b81b08cc4c83
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parents:
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diff
changeset
|
735 { |
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diff
changeset
|
736 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
737 warn_missing_glyph (code); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
738 } |
25421
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
739 else if ((code == '\n') || (code == '\t')) |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
740 { |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
741 glyph_index = FT_Get_Char_Index (face, ' '); |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
742 if (! glyph_index |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
743 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
744 { |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
745 glyph_index = 0; |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
746 warn_missing_glyph (' '); |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
747 } |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
748 else if (code == '\n') |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
749 push_new_line (); |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
750 else |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
751 { |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
752 // Advance to next multiple of 4 times the width of the "space" |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
753 // character. |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
754 int x_tab = 4 * (face->glyph->advance.x >> 6); |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
755 xoffset = (1 + std::floor (1. * xoffset / x_tab)) * x_tab; |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
756 } |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
757 } |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
758 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
759 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
760 switch (mode) |
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 case MODE_RENDER: |
26858
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
763 if (FT_Render_Glyph (face->glyph, (m_antialias |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
764 ? FT_RENDER_MODE_NORMAL |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
765 : FT_RENDER_MODE_MONO))) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
766 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
767 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
768 warn_glyph_render (code); |
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 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
771 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
772 FT_Bitmap& bitmap = face->glyph->bitmap; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
773 int x0, y0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
774 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
775 if (previous) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
776 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
777 FT_Vector delta; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
778 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
779 FT_Get_Kerning (face, previous, glyph_index, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
780 FT_KERNING_DEFAULT, &delta); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
781 xoffset += (delta.x >> 6); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
782 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
783 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
784 x0 = xoffset + face->glyph->bitmap_left; |
26187
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
785 y0 = line_yoffset + yoffset + (face->glyph->bitmap_top - 1); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
786 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
787 // 'w' seems to have a negative -1 |
25421
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
788 // face->glyph->bitmap_left, this is so we don't index out |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
789 // of bound, and assumes we've allocated the right amount of |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
790 // horizontal space in the bbox. |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
791 if (x0 < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
792 x0 = 0; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
793 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
794 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
|
795 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
796 { |
26858
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
797 unsigned char pix |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
798 = (m_antialias |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
799 ? bitmap.buffer[r*bitmap.width+c] |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
800 : (is_opaque (face->glyph, c, r) ? 255 : 0)); |
0adb232f93b9
Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26619
diff
changeset
|
801 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
802 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
|
803 || y0-r < 0 || y0-r >= pixels.dim3 ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
804 { |
26187
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
805 // ::warning ("ft_text_renderer: x %d, y %d", |
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
806 // x0+c, y0-r); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
807 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
808 else if (pixels(3, x0+c, y0-r).value () == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
809 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
810 pixels(0, x0+c, y0-r) = color(0); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
811 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
|
812 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
|
813 pixels(3, x0+c, y0-r) = pix; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
814 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
815 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
816 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
817 xoffset += (face->glyph->advance.x >> 6); |
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 break; |
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 case MODE_BBOX: |
25421
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
822 Matrix& bb = line_bbox.back (); |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
823 |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
824 // If we have a previous glyph, use kerning information. This |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25420
diff
changeset
|
825 // usually means moving a bit backward before adding the next |
c335f94766a7
Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents:
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826 // glyph. That is, "delta.x" is usually < 0. |
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827 if (previous) |
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828 { |
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829 FT_Vector delta; |
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830 |
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831 FT_Get_Kerning (face, previous, glyph_index, |
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832 FT_KERNING_DEFAULT, &delta); |
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833 |
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834 xoffset += (delta.x >> 6); |
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835 } |
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836 |
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837 // Extend current X offset box by the width of the current |
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838 // glyph. Then extend the line bounding box if necessary. |
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839 |
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840 xoffset += (face->glyph->advance.x >> 6); |
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841 bb(2) = math::max (bb(2), xoffset); |
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842 |
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843 // Store the actual bbox vertical coordinates of this character |
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844 FT_Glyph glyph; |
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845 if (FT_Get_Glyph (face->glyph, &glyph)) |
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846 warn_glyph_render (code); |
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847 else |
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848 { |
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849 FT_BBox glyph_bbox; |
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850 FT_Glyph_Get_CBox (glyph, FT_GLYPH_BBOX_UNSCALED, |
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851 &glyph_bbox); |
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852 m_deltax = (glyph_bbox.xMax - face->glyph->advance.x) >> 6; |
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853 m_ymin = math::min ((glyph_bbox.yMin >> 6) + yoffset, |
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854 m_ymin); |
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855 m_ymax = math::max ((glyph_bbox.yMax >> 6) + yoffset, |
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856 m_ymax); |
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857 FT_Done_Glyph (glyph); |
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858 update_line_bbox (); |
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859 } |
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860 break; |
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861 } |
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862 } |
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863 } |
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864 |
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865 return glyph_index; |
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866 } |
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867 |
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868 void |
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869 ft_text_renderer::text_to_strlist (const std::string& txt, |
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870 std::list<text_renderer::string>& lst, |
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871 Matrix& box, |
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872 int ha, int va, double rot, |
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873 const caseless_str& interp) |
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874 { |
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875 uint8NDArray pxls; |
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876 |
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877 // First run text_to_pixels which will also build the string list |
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878 |
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879 m_strlist = std::list<text_renderer::string> (); |
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880 |
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881 octave::unwind_protect frame; |
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882 frame.protect_var (m_do_strlist); |
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883 frame.protect_var (m_strlist); |
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884 m_do_strlist = true; |
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885 |
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886 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false); |
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|
887 |
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888 lst = m_strlist; |
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889 } |
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890 |
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891 void |
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892 ft_text_renderer::visit (text_element_string& e) |
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893 { |
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894 if (font.is_valid ()) |
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895 { |
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896 m_max_fontsize = std::max (m_max_fontsize, font.get_size ()); |
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897 FT_UInt glyph_index, previous = 0; |
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898 |
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899 std::string str = e.string_value (); |
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900 const uint8_t *c = reinterpret_cast<const uint8_t *> (str.c_str ()); |
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901 uint32_t u32_c; |
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902 |
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903 size_t n = str.size (); |
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904 size_t icurr = 0; |
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905 size_t ibegin = 0; |
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|
906 |
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|
907 // Initialize a new string |
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908 std::string fname = font.get_face ()->family_name; |
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909 text_renderer::string fs (str, font, xoffset, yoffset); |
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|
910 std::vector<double> xdata; |
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911 |
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912 while (n > 0) |
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913 { |
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914 // Retrieve the length and the u32 representation of the current |
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915 // character |
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916 int mblen = octave_u8_strmbtouc_wrapper (&u32_c, c + icurr); |
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917 n -= mblen; |
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918 |
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919 if (m_do_strlist && mode == MODE_RENDER) |
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920 { |
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921 if (u32_c == 10) |
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922 { |
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923 // Finish previous string in m_strlist before processing |
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924 // the newline character |
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925 fs.set_y (line_yoffset + yoffset); |
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926 fs.set_color (color); |
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927 |
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928 std::string s = str.substr (ibegin, icurr - ibegin); |
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929 if (! s.empty ()) |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
930 { |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
931 fs.set_string (s); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
932 fs.set_y (line_yoffset + yoffset); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
933 fs.set_xdata (xdata); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
934 fs.set_family (fname); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
935 m_strlist.push_back (fs); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
936 } |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
937 } |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
938 else |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
939 xdata.push_back (xoffset); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
940 } |
25362
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
941 |
26187
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
942 glyph_index = process_character (u32_c, previous); |
25362
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
943 |
26187
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
944 if (u32_c == 10) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
945 { |
25362
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
946 previous = 0; |
26617
98afb8bbd1f6
maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents:
26573
diff
changeset
|
947 |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
948 if (m_do_strlist && mode == MODE_RENDER) |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
949 { |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
950 // Start a new string in m_strlist |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
951 ibegin = icurr+1; |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
952 xdata.clear (); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
953 fs = text_renderer::string (str.substr (ibegin), font, |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
954 line_xoffset, yoffset); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
955 } |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
956 } |
25362
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
957 else |
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
958 previous = glyph_index; |
def1b446ba64
Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25336
diff
changeset
|
959 |
26187
8d4f23b7f4eb
Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26152
diff
changeset
|
960 icurr += mblen; |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
961 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
962 |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
963 if (m_do_strlist && mode == MODE_RENDER && ! fs.get_string ().empty ()) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
964 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
965 fs.set_y (line_yoffset + yoffset); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
966 fs.set_color (color); |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
967 fs.set_xdata (xdata); |
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
968 fs.set_family (fname); |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
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diff
changeset
|
969 m_strlist.push_back (fs); |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
970 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
971 } |
b81b08cc4c83
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parents:
22326
diff
changeset
|
972 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
973 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
974 void |
b81b08cc4c83
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parents:
22326
diff
changeset
|
975 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
|
976 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
977 // 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
|
978 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
979 ft_font saved_font (font); |
b81b08cc4c83
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parents:
22326
diff
changeset
|
980 uint8NDArray saved_color (color); |
b81b08cc4c83
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parents:
22326
diff
changeset
|
981 |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
982 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
983 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
984 font = saved_font; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
985 color = saved_color; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
986 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
987 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
988 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
989 ft_text_renderer::visit (text_element_subscript& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
990 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
991 ft_font saved_font (font); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
992 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
993 int saved_yoffset = yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
994 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
995 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
996 font.get_size () - 2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
997 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
998 if (font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
999 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1000 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
|
1001 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1002 // Shifting the baseline by 2/3 the font height seems to produce |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1003 // decent result. |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1004 yoffset -= (h * 2) / 3; |
b81b08cc4c83
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parents:
22326
diff
changeset
|
1005 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1006 if (mode == MODE_BBOX) |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1007 update_line_bbox (); |
b81b08cc4c83
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22326
diff
changeset
|
1008 } |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1009 |
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parents:
22326
diff
changeset
|
1010 text_processor::visit (e); |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1011 |
b81b08cc4c83
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changeset
|
1012 font = saved_font; |
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maint: Indent namespaces in more files.
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diff
changeset
|
1013 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
b81b08cc4c83
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diff
changeset
|
1014 // cannot be restored, because the saved value is not relevant anymore. |
b81b08cc4c83
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diff
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|
1015 if (line_yoffset == saved_line_yoffset) |
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parents:
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diff
changeset
|
1016 yoffset = saved_yoffset; |
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diff
changeset
|
1017 } |
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diff
changeset
|
1018 |
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changeset
|
1019 void |
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parents:
22326
diff
changeset
|
1020 ft_text_renderer::visit (text_element_superscript& e) |
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parents:
22326
diff
changeset
|
1021 { |
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changeset
|
1022 ft_font saved_font (font); |
b81b08cc4c83
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diff
changeset
|
1023 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1024 int saved_yoffset = yoffset; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1025 |
22331
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22326
diff
changeset
|
1026 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
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22326
diff
changeset
|
1027 font.get_size () - 2); |
b81b08cc4c83
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22326
diff
changeset
|
1028 |
b81b08cc4c83
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diff
changeset
|
1029 if (saved_font.is_valid ()) |
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diff
changeset
|
1030 { |
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parents:
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diff
changeset
|
1031 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1032 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1033 // Shifting the baseline by 2/3 base font ascender seems to produce |
b81b08cc4c83
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22326
diff
changeset
|
1034 // decent result. |
b81b08cc4c83
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diff
changeset
|
1035 yoffset += (s_asc * 2) / 3; |
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22326
diff
changeset
|
1036 |
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parents:
22326
diff
changeset
|
1037 if (mode == MODE_BBOX) |
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diff
changeset
|
1038 update_line_bbox (); |
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diff
changeset
|
1039 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
1040 |
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diff
changeset
|
1041 text_processor::visit (e); |
b81b08cc4c83
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diff
changeset
|
1042 |
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diff
changeset
|
1043 font = saved_font; |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1044 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1045 // cannot be restored, because the saved value is not relevant anymore. |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1046 if (line_yoffset == saved_line_yoffset) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1047 yoffset = saved_yoffset; |
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maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1048 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1049 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1050 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1051 ft_text_renderer::visit (text_element_color& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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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 if (mode == MODE_RENDER) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1054 set_color (e.get_color ()); |
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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 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1057 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1058 ft_text_renderer::visit (text_element_fontsize& e) |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1059 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1060 double sz = e.get_fontsize (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1061 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1062 // FIXME: Matlab documentation says that the font size is expressed |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1063 // in the text object FontUnit. |
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diff
changeset
|
1064 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1065 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
|
1066 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1067 if (mode == MODE_BBOX) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1068 update_line_bbox (); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1069 } |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1070 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1071 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1072 ft_text_renderer::visit (text_element_fontname& e) |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1073 { |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1074 set_font (e.get_fontname (), font.get_weight (), font.get_angle (), |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1075 font.get_size ()); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1076 |
22331
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22326
diff
changeset
|
1077 if (mode == MODE_BBOX) |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1078 update_line_bbox (); |
b81b08cc4c83
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diff
changeset
|
1079 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1080 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1081 void |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1082 ft_text_renderer::visit (text_element_fontstyle& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1083 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1084 switch (e.get_fontstyle ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1085 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1086 case text_element_fontstyle::normal: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1087 set_font (font.get_name (), "normal", "normal", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1088 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1089 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1090 case text_element_fontstyle::bold: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1091 set_font (font.get_name (), "bold", "normal", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1092 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1093 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1094 case text_element_fontstyle::italic: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1095 set_font (font.get_name (), "normal", "italic", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1096 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1097 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1098 case text_element_fontstyle::oblique: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1099 set_font (font.get_name (), "normal", "oblique", font.get_size ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1100 break; |
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maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1101 } |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1102 |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1103 if (mode == MODE_BBOX) |
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maint: Indent namespaces in more files.
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diff
changeset
|
1104 update_line_bbox (); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1105 } |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1106 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1107 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1108 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
|
1109 { |
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maint: Indent namespaces in more files.
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diff
changeset
|
1110 uint32_t code = e.get_symbol_code (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1111 |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
1112 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
|
1113 text_renderer::string fs ("-", font, xoffset, yoffset); |
22331
b81b08cc4c83
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diff
changeset
|
1114 |
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diff
changeset
|
1115 if (code != text_element_symbol::invalid_code && font.is_valid ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1116 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1117 process_character (code); |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1118 if (m_do_strlist && mode == MODE_RENDER) |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1119 { |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1120 fs.set_code (code); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1121 fs.set_xdata (xdata); |
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1122 } |
22331
b81b08cc4c83
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diff
changeset
|
1123 } |
b81b08cc4c83
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diff
changeset
|
1124 else if (font.is_valid ()) |
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diff
changeset
|
1125 ::warning ("ignoring unknown symbol: %d", e.get_symbol ()); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1126 |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1127 if (m_do_strlist && mode == MODE_RENDER && fs.get_code ()) |
22331
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diff
changeset
|
1128 { |
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diff
changeset
|
1129 fs.set_y (line_yoffset + yoffset); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1130 fs.set_color (color); |
24076
1b7e49a72c62
improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
23807
diff
changeset
|
1131 fs.set_family (font.get_face ()->family_name); |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1132 m_strlist.push_back (fs); |
22331
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diff
changeset
|
1133 } |
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diff
changeset
|
1134 } |
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diff
changeset
|
1135 |
b81b08cc4c83
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diff
changeset
|
1136 void |
b81b08cc4c83
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diff
changeset
|
1137 ft_text_renderer::visit (text_element_combined& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1138 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1139 int saved_xoffset = xoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1140 int max_xoffset = xoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1141 |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
1142 for (auto *txt_elt : e) |
22331
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1143 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1144 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
|
1145 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
|
1146 max_xoffset = math::max (xoffset, max_xoffset); |
22331
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maint: Indent namespaces in more files.
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diff
changeset
|
1147 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
1148 |
b81b08cc4c83
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diff
changeset
|
1149 xoffset = max_xoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1150 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1151 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1152 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1153 ft_text_renderer::reset (void) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1154 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1155 set_mode (MODE_BBOX); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1156 set_color (Matrix (1, 3, 0.0)); |
26573
ad70a85f702b
Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents:
26478
diff
changeset
|
1157 m_strlist = std::list<text_renderer::string> (); |
22331
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maint: Indent namespaces in more files.
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diff
changeset
|
1158 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1159 |
22331
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changeset
|
1160 void |
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changeset
|
1161 ft_text_renderer::set_color (const Matrix& c) |
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|
1162 { |
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|
1163 if (c.numel () == 3) |
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|
1164 { |
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changeset
|
1165 color(0) = static_cast<uint8_t> (c(0)*255); |
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John W. Eaton <jwe@octave.org>
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|
1166 color(1) = static_cast<uint8_t> (c(1)*255); |
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|
1167 color(2) = static_cast<uint8_t> (c(2)*255); |
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|
1168 } |
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|
1169 else |
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|
1170 ::warning ("ft_text_renderer::set_color: invalid color"); |
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|
1171 } |
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|
1172 |
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|
1173 uint8NDArray |
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maint: Indent namespaces in more files.
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|
1174 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation) |
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|
1175 { |
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|
1176 set_mode (MODE_BBOX); |
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|
1177 elt->accept (*this); |
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|
1178 compute_bbox (); |
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|
1179 box = bbox; |
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maint: Indent namespaces in more files.
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|
1180 |
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|
1181 set_mode (MODE_RENDER); |
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|
1182 |
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|
1183 if (pixels.numel () > 0) |
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|
1184 { |
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changeset
|
1185 elt->accept (*this); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
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|
1186 |
22331
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|
1187 switch (rotation) |
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|
1188 { |
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|
1189 case ROTATION_0: |
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|
1190 break; |
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maint: Indent namespaces in more files.
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changeset
|
1191 |
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|
1192 case ROTATION_90: |
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|
1193 { |
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John W. Eaton <jwe@octave.org>
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changeset
|
1194 Array<octave_idx_type> perm (dim_vector (3, 1)); |
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|
1195 perm(0) = 0; |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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|
1196 perm(1) = 2; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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|
1197 perm(2) = 1; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
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|
1198 pixels = pixels.permute (perm); |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1199 |
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maint: Indent namespaces in more files.
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changeset
|
1200 Array<idx_vector> idx (dim_vector (3, 1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1201 idx(0) = idx_vector (':'); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1202 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
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changeset
|
1203 idx(2) = idx_vector (':'); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1204 pixels = uint8NDArray (pixels.index (idx)); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1205 } |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1206 break; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1207 |
22331
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1208 case ROTATION_180: |
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John W. Eaton <jwe@octave.org>
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|
1209 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1210 Array<idx_vector> idx (dim_vector (3, 1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1211 idx(0) = idx_vector (':'); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1212 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1213 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1214 pixels = uint8NDArray (pixels.index (idx)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1215 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1216 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1217 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1218 case ROTATION_270: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1219 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1220 Array<octave_idx_type> perm (dim_vector (3, 1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1221 perm(0) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1222 perm(1) = 2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1223 perm(2) = 1; |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1224 pixels = pixels.permute (perm); |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1225 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1226 Array<idx_vector> idx (dim_vector (3, 1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
1227 idx(0) = idx_vector (':'); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1228 idx(1) = idx_vector (':'); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1229 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1230 pixels = uint8NDArray (pixels.index (idx)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1231 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1232 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1233 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1234 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1235 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1236 return pixels; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1237 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1238 |
b81b08cc4c83
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parents:
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diff
changeset
|
1239 // Note: |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1240 // x-extent accurately measures width of glyphs. |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1241 // 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>
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diff
changeset
|
1242 // 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:
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diff
changeset
|
1243 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1244 Matrix |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1245 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
|
1246 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1247 set_mode (MODE_BBOX); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1248 elt->accept (*this); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1249 compute_bbox (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1250 |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1251 Matrix extent (1, 2, 0.0); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1252 |
b81b08cc4c83
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parents:
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diff
changeset
|
1253 switch (rotation_to_mode (rotation)) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1254 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1255 case ROTATION_0: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1256 case ROTATION_180: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1257 extent(0) = bbox(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1258 extent(1) = bbox(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1259 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1260 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1261 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1262 case ROTATION_270: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1263 extent(0) = bbox(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1264 extent(1) = bbox(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1265 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1266 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1267 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1268 } |
b81b08cc4c83
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parents:
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diff
changeset
|
1269 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1270 Matrix |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1271 ft_text_renderer::get_extent (const std::string& txt, double rotation, |
b81b08cc4c83
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diff
changeset
|
1272 const caseless_str& interpreter) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1273 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1274 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
|
1275 Matrix extent = get_extent (elt, rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1276 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1277 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1278 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1279 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1280 |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1281 int |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1282 ft_text_renderer::rotation_to_mode (double rotation) const |
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diff
changeset
|
1283 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1284 // Clip rotation to range [0, 360] |
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maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1285 while (rotation < 0) |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1286 rotation += 360.0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1287 while (rotation > 360.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1288 rotation -= 360.0; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1289 |
22331
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parents:
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diff
changeset
|
1290 if (rotation == 0.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1291 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1292 else if (rotation == 90.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1293 return ROTATION_90; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1294 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
|
1295 return ROTATION_180; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1296 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
|
1297 return ROTATION_270; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1298 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1299 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1300 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1301 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1302 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1303 ft_text_renderer::text_to_pixels (const std::string& txt, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1304 uint8NDArray& pxls, Matrix& box, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1305 int _halign, int valign, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1306 const caseless_str& interpreter, |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1307 bool handle_rotation) |
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maint: Indent namespaces in more files.
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diff
changeset
|
1308 { |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1309 int rot_mode = rotation_to_mode (rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1310 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1311 halign = _halign; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1312 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1313 text_element *elt = text_parser::parse (txt, interpreter); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1314 pxls = render (elt, box, rot_mode); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1315 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1316 |
23577
80c42f4cca13
maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents:
23462
diff
changeset
|
1317 if (pxls.isempty ()) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1318 return; // nothing to render |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1319 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1320 switch (halign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1321 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1322 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1323 box(0) = -box(2)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1324 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1325 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1326 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1327 box(0) = -box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1328 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1329 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
1330 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1331 box(0) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1332 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1333 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1334 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1335 switch (valign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1336 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1337 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1338 box(1) = -box(3)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1339 break; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1340 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1341 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1342 box(1) = -box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1343 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1344 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1345 case 3: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1346 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1347 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1348 case 4: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1349 box(1) = -box(3)-box(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1350 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1351 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1352 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1353 box(1) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1354 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1355 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1356 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1357 if (handle_rotation) |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1358 { |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1359 switch (rot_mode) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1360 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1361 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1362 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1363 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1364 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1365 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1366 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1367 case ROTATION_180: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1368 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1369 box(1) = -box(1)-box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1370 break; |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
1371 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1372 case ROTATION_270: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1373 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1374 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1375 box(1) = -box(1)-box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1376 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1377 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1378 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1379 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1380 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1381 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
|
1382 : text_renderer::font (ft), face (nullptr) |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1383 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1384 #if defined (HAVE_FT_REFERENCE_FACE) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1385 FT_Face ft_face = ft.get_face (); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1386 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1387 if (ft_face && FT_Reference_Face (ft_face) == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1388 face = ft_face; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1389 #endif |
b81b08cc4c83
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parents:
22326
diff
changeset
|
1390 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1391 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1392 ft_text_renderer::ft_font& |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1393 ft_text_renderer::ft_font::operator = (const ft_font& ft) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1394 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1395 if (&ft != this) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1396 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1397 text_renderer::font::operator = (ft); |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
1398 |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1399 if (face) |
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1400 { |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1401 FT_Done_Face (face); |
23795
980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
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23696
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|
1402 face = nullptr; |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
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|
1403 } |
17330
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1404 |
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1405 #if defined (HAVE_FT_REFERENCE_FACE) |
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1406 FT_Face ft_face = ft.get_face (); |
17330
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Michael Goffioul <michael.goffioul@gmail.com>
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|
1407 |
22331
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1408 if (ft_face && FT_Reference_Face (ft_face) == 0) |
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|
1409 face = ft_face; |
17330
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Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
changeset
|
1410 #endif |
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John W. Eaton <jwe@octave.org>
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|
1411 } |
17330
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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diff
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|
1412 |
22331
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John W. Eaton <jwe@octave.org>
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22326
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|
1413 return *this; |
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John W. Eaton <jwe@octave.org>
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|
1414 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17327
diff
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|
1415 |
22331
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John W. Eaton <jwe@octave.org>
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|
1416 FT_Face |
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parents:
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changeset
|
1417 ft_text_renderer::ft_font::get_face (void) const |
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|
1418 { |
b81b08cc4c83
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changeset
|
1419 if (! face && ! name.empty ()) |
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parents:
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diff
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|
1420 { |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
22326
diff
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|
1421 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
|
1422 |
22331
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parents:
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|
1423 if (face) |
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|
1424 { |
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parents:
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|
1425 if (FT_Set_Char_Size (face, 0, size*64, 0, 0)) |
b81b08cc4c83
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changeset
|
1426 ::warning ("ft_text_renderer: unable to set font size to %g", size); |
b81b08cc4c83
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parents:
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|
1427 } |
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parents:
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diff
changeset
|
1428 else |
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parents:
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diff
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|
1429 ::warning ("ft_text_renderer: unable to load appropriate font"); |
b81b08cc4c83
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parents:
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|
1430 } |
17330
219552139c18
Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents:
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diff
changeset
|
1431 |
22331
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|
1432 return face; |
b81b08cc4c83
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parents:
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diff
changeset
|
1433 } |
22326
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John W. Eaton <jwe@octave.org>
parents:
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|
1434 } |
71dd9d5a5ecd
move more new classes inside octave namespace
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parents:
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changeset
|
1435 |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
20715
diff
changeset
|
1436 #endif |
21209
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John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1437 |
22326
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1438 namespace octave |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1439 { |
22326
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John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1440 base_text_renderer * |
71dd9d5a5ecd
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1441 make_ft_text_renderer (void) |
71dd9d5a5ecd
move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1442 { |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1443 #if defined (HAVE_FREETYPE) |
22326
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John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1444 return new ft_text_renderer (); |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1445 #else |
22326
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John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
1446 return 0; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1447 #endif |
22326
71dd9d5a5ecd
move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1448 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1449 } |