Mercurial > octave
annotate libinterp/corefcn/ft-text-renderer.cc @ 23457:21baad6b35c4
maint: Use C++11 nullptr rather than 0 or NULL when possible.
* FigureWindow.h, Logger.cc, Menu.cc, MouseModeActionGroup.h, Object.h,
ObjectFactory.cc, ObjectProxy.h, color-picker.h, documentation-dock-widget.h,
files-dock-widget.h, find-files-dialog.h, history-dock-widget.h,
file-editor-tab.cc, file-editor.cc, file-editor.h, find-dialog.h,
main-window.cc, main-window.h, octave-dock-widget.h, parser.cc, parser.h,
webinfo.h, resource-manager.cc, shortcut-manager.cc, shortcut-manager.h,
terminal-dock-widget.h, welcome-wizard.cc, welcome-wizard.h, workspace-model.h,
workspace-view.h, __magick_read__.cc, call-stack.cc, call-stack.h, cdisplay.c,
display.cc, dlmread.cc, dynamic-ld.cc, ft-text-renderer.cc, gl2ps-print.cc,
graphics.cc, graphics.in.h, input.h, interpreter.cc, interpreter.h, ls-hdf5.cc,
mex.cc, mxarray.in.h, oct-errno.in.cc, oct-fstrm.cc, oct-iostrm.h,
oct-procbuf.cc, oct-stdstrm.h, oct-stream.cc, oct-stream.h, octave-link.cc,
pager.cc, pr-output.cc, profiler.h, qz.cc, sighandlers.cc, strfns.cc,
symtab.cc, symtab.h, typecast.cc, urlwrite.cc, variables.cc, __eigs__.cc,
__init_fltk__.cc, __ode15__.cc, colamd.cc, ov-base-int.cc, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-builtin.cc, ov-class.cc, ov-classdef.cc,
ov-complex.cc, ov-cx-diag.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-flt-complex.cc, ov-flt-cx-diag.cc, ov-flt-cx-mat.cc,
ov-flt-re-diag.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-lazy-idx.cc,
ov-perm.cc, ov-range.cc, ov-re-diag.cc, ov-re-mat.cc, ov-re-sparse.cc,
ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.h, octave.cc, octave.h, bp-table.cc,
jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, lex.h, pt-arg-list.cc,
pt-arg-list.h, pt-array-list.h, pt-cell.h, pt-classdef.h, pt-colon.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-idx.h, pt-jit.cc, pt-jit.h,
pt-loop.h, pt-mat.h, pt-select.h, pt.h, CSparse.cc, dSparse.cc, DASPK.cc,
DASRT.cc, DASSL.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc, child-list.cc,
file-ops.cc, mach-info.cc, oct-env.cc, oct-time.cc, cmd-edit.cc, cmd-hist.cc,
oct-locbuf.cc, oct-shlib.cc, pathsearch.cc, singleton-cleanup.cc,
unwind-prot.h, url-transfer.cc:
Use C++11 nullptr rather than 0 or NULL when possible.
author | Rik <rik@octave.org> |
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date | Fri, 28 Apr 2017 13:19:12 -0700 |
parents | db1fdf4384dd |
children | 314d980bee93 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2016-2017 John W. Eaton |
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4 Copyright (C) 2009-2016 Michael Goffioul |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation; either version 3 of the License, or |
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11 (at your option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #if defined (HAVE_CONFIG_H) |
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25 # include "config.h" |
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26 #endif |
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27 |
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28 #include "base-text-renderer.h" |
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29 |
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30 #if defined (HAVE_FREETYPE) |
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31 |
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32 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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33 #pragma GCC diagnostic push |
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34 #pragma GCC diagnostic ignored "-Wold-style-cast" |
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35 #endif |
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36 |
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37 #include <ft2build.h> |
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38 #include FT_FREETYPE_H |
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39 |
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40 #if defined (HAVE_FONTCONFIG) |
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41 # include <fontconfig/fontconfig.h> |
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42 #endif |
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43 |
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44 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC) |
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45 #pragma GCC diagnostic pop |
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46 #endif |
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47 |
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48 #include <clocale> |
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49 #include <cwchar> |
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50 #include <iostream> |
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51 #include <map> |
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52 #include <utility> |
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53 |
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54 #include "singleton-cleanup.h" |
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55 |
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56 #include "error.h" |
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57 #include "pr-output.h" |
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58 #include "text-renderer.h" |
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59 |
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60 // FIXME: maybe issue at most one warning per glyph/font/size/weight |
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61 // combination. |
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62 |
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63 static void |
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64 warn_missing_glyph (FT_ULong c) |
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65 { |
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66 warning_with_id ("Octave:missing-glyph", |
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67 "text_renderer: skipping missing glyph for character '%x'", c); |
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68 } |
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69 |
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70 static void |
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71 warn_glyph_render (FT_ULong c) |
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72 { |
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73 warning_with_id ("Octave:glyph-render", |
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74 "text_renderer: unable to render glyph for character '%x'", c); |
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75 } |
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76 |
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77 #if defined (_MSC_VER) |
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78 // FIXME: is this really needed? |
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79 // |
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80 // This is just a trick to avoid multiple symbol definitions. |
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81 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type> |
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82 // that will cause MSVC not to generate a new instantiation and |
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83 // use the imported one instead. |
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84 # include "PermMatrix.h" |
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85 #endif |
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86 |
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87 // Forward declaration |
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88 static void ft_face_destroyed (void *object); |
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89 |
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90 namespace octave |
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91 { |
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92 class |
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93 ft_manager |
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94 { |
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95 private: |
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96 |
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97 ft_manager (void) |
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98 : library (), freetype_initialized (false), fontconfig_initialized (false) |
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99 { |
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100 if (FT_Init_FreeType (&library)) |
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101 error ("unable to initialize FreeType library"); |
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102 else |
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103 freetype_initialized = true; |
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104 |
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105 #if defined (HAVE_FONTCONFIG) |
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106 if (! FcInit ()) |
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107 error ("unable to initialize fontconfig library"); |
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108 else |
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109 fontconfig_initialized = true; |
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110 #endif |
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111 } |
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112 |
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113 public: |
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114 |
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115 // No copying! |
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116 |
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117 ft_manager (const ft_manager&) = delete; |
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118 |
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119 ft_manager& operator = (const ft_manager&) = delete; |
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120 |
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121 private: |
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122 |
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123 ~ft_manager (void) |
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124 { |
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125 if (freetype_initialized) |
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126 FT_Done_FreeType (library); |
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127 |
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128 #if defined (HAVE_FONTCONFIG) |
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129 // FIXME: Skip the call to FcFini because it can trigger the assertion |
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130 // |
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131 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed. |
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132 // |
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133 // if (fontconfig_initialized) |
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134 // FcFini (); |
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135 #endif |
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136 } |
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137 |
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138 public: |
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139 |
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140 static bool instance_ok (void) |
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141 { |
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142 bool retval = true; |
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143 |
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144 if (! instance) |
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145 { |
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146 instance = new ft_manager (); |
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147 |
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148 if (instance) |
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149 singleton_cleanup_list::add (cleanup_instance); |
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150 } |
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151 |
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152 if (! instance) |
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153 error ("unable to create ft_manager!"); |
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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 = 0; } |
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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 : 0); |
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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 = 0; |
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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 std::string file; |
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206 |
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207 #if defined (HAVE_FONTCONFIG) |
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208 if (fontconfig_initialized) |
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209 { |
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210 int fc_weight, fc_angle; |
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211 |
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212 if (weight == "bold") |
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213 fc_weight = FC_WEIGHT_BOLD; |
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214 else if (weight == "light") |
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215 fc_weight = FC_WEIGHT_LIGHT; |
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216 else if (weight == "demi") |
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217 fc_weight = FC_WEIGHT_DEMIBOLD; |
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218 else |
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219 fc_weight = FC_WEIGHT_NORMAL; |
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220 |
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221 if (angle == "italic") |
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222 fc_angle = FC_SLANT_ITALIC; |
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223 else if (angle == "oblique") |
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224 fc_angle = FC_SLANT_OBLIQUE; |
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225 else |
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226 fc_angle = FC_SLANT_ROMAN; |
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227 |
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228 FcPattern *pat = FcPatternCreate (); |
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229 |
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230 FcPatternAddString (pat, FC_FAMILY, |
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231 (reinterpret_cast<const FcChar8 *> |
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232 (name == "*" ? "sans" : name.c_str ()))); |
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233 |
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234 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight); |
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235 FcPatternAddInteger (pat, FC_SLANT, fc_angle); |
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236 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size); |
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237 |
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238 if (FcConfigSubstitute (0, pat, FcMatchPattern)) |
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239 { |
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240 FcResult res; |
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241 FcPattern *match; |
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242 |
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243 FcDefaultSubstitute (pat); |
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244 match = FcFontMatch (0, pat, &res); |
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246 // FIXME: originally, this test also required that |
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247 // res != FcResultNoMatch. Is that really needed? |
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248 if (match) |
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249 { |
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250 unsigned char *tmp; |
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251 |
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252 FcPatternGetString (match, FC_FILE, 0, &tmp); |
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253 file = reinterpret_cast<char *> (tmp); |
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254 } |
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255 else |
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256 ::warning ("could not match any font: %s-%s-%s-%g", |
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257 name.c_str (), weight.c_str (), angle.c_str (), |
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258 size); |
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259 |
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260 if (match) |
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261 FcPatternDestroy (match); |
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262 } |
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263 |
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264 FcPatternDestroy (pat); |
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265 } |
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266 #endif |
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267 |
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268 if (file.empty ()) |
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269 { |
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270 #if defined (OCTAVE_USE_WINDOWS_API) |
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271 file = "C:/WINDOWS/Fonts/verdana.ttf"; |
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272 #else |
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273 // FIXME: find a "standard" font for UNIX platforms |
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274 #endif |
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275 } |
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276 |
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277 if (! file.empty ()) |
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278 { |
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279 if (FT_New_Face (library, file.c_str (), 0, &retval)) |
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280 ::warning ("ft_manager: unable to load font: %s", file.c_str ()); |
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281 #if defined (HAVE_FT_REFERENCE_FACE) |
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282 else |
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283 { |
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284 // Install a finalizer to notify ft_manager that the font is |
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285 // being destroyed. The class ft_manager only keeps weak |
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286 // references to font objects. |
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287 |
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288 retval->generic.data = new ft_key (key); |
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289 retval->generic.finalizer = ft_face_destroyed; |
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290 |
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291 // Insert loaded font into the cache. |
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292 |
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293 cache[key] = retval; |
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294 } |
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295 #endif |
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296 } |
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297 |
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298 return retval; |
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299 } |
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300 |
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301 void do_font_destroyed (FT_Face face) |
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302 { |
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303 if (face->generic.data) |
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304 { |
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305 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data); |
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306 |
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307 cache.erase (*pkey); |
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308 delete pkey; |
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309 face->generic.data = 0; |
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310 } |
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311 } |
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312 |
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313 private: |
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314 FT_Library library; |
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315 bool freetype_initialized; |
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316 bool fontconfig_initialized; |
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317 }; |
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318 |
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319 ft_manager *ft_manager::instance = nullptr; |
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320 |
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321 } |
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322 |
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323 static void |
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324 ft_face_destroyed (void *object) |
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325 { |
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326 octave::ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object)); |
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327 } |
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328 |
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329 namespace octave |
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330 { |
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331 class |
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332 OCTINTERP_API |
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333 ft_text_renderer : public base_text_renderer |
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334 { |
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335 public: |
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336 |
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337 enum |
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338 { |
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339 MODE_BBOX = 0, |
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340 MODE_RENDER = 1 |
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341 }; |
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342 |
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343 enum |
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344 { |
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345 ROTATION_0 = 0, |
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346 ROTATION_90 = 1, |
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347 ROTATION_180 = 2, |
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348 ROTATION_270 = 3 |
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349 }; |
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350 |
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351 public: |
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352 |
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353 ft_text_renderer (void) |
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354 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0), |
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355 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX), |
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356 color (dim_vector (1, 3), 0) |
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357 { } |
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358 |
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359 // No copying! |
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360 |
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361 ft_text_renderer (const ft_text_renderer&) = delete; |
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362 |
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363 ft_text_renderer& operator = (const ft_text_renderer&) = delete; |
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364 |
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365 ~ft_text_renderer (void) = default; |
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366 |
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367 void visit (text_element_string& e); |
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368 |
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369 void visit (text_element_list& e); |
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370 |
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371 void visit (text_element_subscript& e); |
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372 |
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373 void visit (text_element_superscript& e); |
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374 |
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375 void visit (text_element_color& e); |
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376 |
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377 void visit (text_element_fontsize& e); |
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378 |
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379 void visit (text_element_fontname& e); |
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380 |
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381 void visit (text_element_fontstyle& e); |
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382 |
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383 void visit (text_element_symbol& e); |
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384 |
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385 void visit (text_element_combined& e); |
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386 |
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387 void reset (void); |
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388 |
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389 uint8NDArray get_pixels (void) const { return pixels; } |
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390 |
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391 Matrix get_boundingbox (void) const { return bbox; } |
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392 |
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393 uint8NDArray render (text_element *elt, Matrix& box, |
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394 int rotation = ROTATION_0); |
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395 |
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396 Matrix get_extent (text_element *elt, double rotation = 0.0); |
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397 Matrix get_extent (const std::string& txt, double rotation, |
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398 const caseless_str& interpreter); |
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399 |
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400 void set_font (const std::string& name, const std::string& weight, |
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401 const std::string& angle, double size); |
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402 |
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403 void set_color (const Matrix& c); |
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404 |
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405 void set_mode (int m); |
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406 |
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407 void text_to_pixels (const std::string& txt, |
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408 uint8NDArray& pxls, Matrix& bbox, |
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409 int halign, int valign, double rotation, |
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410 const caseless_str& interpreter, |
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411 bool handle_rotation); |
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412 |
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413 private: |
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414 |
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415 int rotation_to_mode (double rotation) const; |
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416 |
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417 // Class to hold information about fonts and a strong |
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418 // reference to the font objects loaded by FreeType. |
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419 |
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420 class ft_font : public text_renderer::font |
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421 { |
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422 public: |
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423 |
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424 ft_font (void) |
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425 : text_renderer::font (), face (0) { } |
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426 |
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427 ft_font (const std::string& nm, const std::string& wt, |
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428 const std::string& ang, double sz, FT_Face f = 0) |
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429 : text_renderer::font (nm, wt, ang, sz), face (f) |
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430 { } |
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431 |
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432 ft_font (const ft_font& ft); |
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433 |
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434 ~ft_font (void) |
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435 { |
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436 if (face) |
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437 FT_Done_Face (face); |
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438 } |
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439 |
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440 ft_font& operator = (const ft_font& ft); |
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441 |
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442 bool is_valid (void) const { return get_face (); } |
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443 |
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444 FT_Face get_face (void) const; |
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445 |
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446 private: |
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447 |
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448 mutable FT_Face face; |
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449 }; |
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450 |
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451 void push_new_line (void); |
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452 |
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453 void update_line_bbox (void); |
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454 |
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455 void compute_bbox (void); |
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456 |
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457 int compute_line_xoffset (const Matrix& lb) const; |
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458 |
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459 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0); |
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460 |
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461 public: |
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462 |
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463 void text_to_strlist (const std::string& txt, |
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464 std::list<text_renderer::string>& lst, Matrix& bbox, |
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465 int halign, int valign, double rotation, |
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466 const caseless_str& interp); |
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467 |
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468 private: |
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469 |
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470 // The current font used by the renderer. |
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471 ft_font font; |
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472 |
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473 // Used to stored the bounding box corresponding to the rendered text. |
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474 // The bounding box has the form [x, y, w, h] where x and y represent the |
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475 // coordinates of the bottom left corner relative to the anchor point of |
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476 // the text (== start of text on the baseline). Due to font descent or |
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477 // multiple lines, the value y is usually negative. |
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478 Matrix bbox; |
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479 |
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480 // Used to stored the rendered text. It's a 3D matrix with size MxNx4 |
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481 // where M and N are the width and height of the bounding box. |
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482 uint8NDArray pixels; |
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483 |
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484 // Used to store the bounding box of each line. This is used to layout |
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485 // multiline text properly. |
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486 std::list<Matrix> line_bbox; |
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487 |
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488 // The current horizontal alignment. This is used to align multi-line text. |
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489 int halign; |
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490 |
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491 // The X offset for the next glyph. |
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492 int xoffset; |
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493 |
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494 // The Y offset of the baseline for the current line. |
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495 int line_yoffset; |
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496 |
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497 // The Y offset of the baseline for the next glyph. The offset is relative |
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498 // to line_yoffset. The total Y offset is computed with: |
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499 // line_yoffset + yoffset. |
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500 int yoffset; |
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501 |
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502 // The current mode of the rendering process (box computing or rendering). |
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503 int mode; |
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504 |
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505 // The base color of the rendered text. |
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506 uint8NDArray color; |
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507 |
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508 // A list of parsed strings to be used for printing. |
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509 std::list<text_renderer::string> strlist; |
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510 |
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511 // The X offset of the baseline for the current line. |
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512 int line_xoffset; |
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513 |
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514 }; |
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515 |
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516 void |
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517 ft_text_renderer::set_font (const std::string& name, const std::string& weight, |
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518 const std::string& angle, double size) |
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519 { |
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520 // FIXME: take "fontunits" into account |
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521 |
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522 font = ft_font (name, weight, angle, size, 0); |
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523 } |
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524 |
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525 void |
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526 ft_text_renderer::push_new_line (void) |
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527 { |
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528 switch (mode) |
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529 { |
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530 case MODE_BBOX: |
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531 { |
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532 // Create a new bbox entry based on the current font. |
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533 |
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534 FT_Face face = font.get_face (); |
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535 |
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536 if (face) |
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537 { |
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538 int asc = face->size->metrics.ascender >> 6; |
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539 int desc = face->size->metrics.descender >> 6; |
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540 int h = face->size->metrics.height >> 6; |
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541 |
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542 Matrix bb (1, 5, 0.0); |
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543 |
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544 bb(1) = desc; |
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545 bb(3) = asc - desc; |
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546 bb(4) = h; |
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547 |
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548 line_bbox.push_back (bb); |
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549 |
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550 xoffset = yoffset = 0; |
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551 } |
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552 } |
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553 break; |
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554 |
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555 case MODE_RENDER: |
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556 { |
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557 // Move to the next line bbox, adjust xoffset based on alignment |
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558 // and yoffset based on the old and new line bbox. |
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559 |
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560 Matrix old_bbox = line_bbox.front (); |
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561 line_bbox.pop_front (); |
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562 Matrix new_bbox = line_bbox.front (); |
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563 |
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564 xoffset = line_xoffset = compute_line_xoffset (new_bbox); |
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565 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3))); |
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566 yoffset = 0; |
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567 } |
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|
568 break; |
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|
569 } |
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|
570 } |
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67d2965af0b5
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|
571 |
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|
572 int |
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|
573 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const |
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574 { |
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575 if (! bbox.is_empty ()) |
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576 { |
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577 switch (halign) |
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578 { |
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579 case 0: |
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580 return 0; |
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581 case 1: |
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|
582 return (bbox(2) - lb(2)) / 2; |
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583 case 2: |
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584 return (bbox(2) - lb(2)); |
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|
585 } |
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|
586 } |
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587 |
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|
588 return 0; |
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|
589 } |
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changeset
|
590 |
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changeset
|
591 void |
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592 ft_text_renderer::compute_bbox (void) |
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593 { |
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594 // Stack the various line bbox together and compute the final |
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|
595 // bounding box for the entire text string. |
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|
596 |
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597 bbox = Matrix (); |
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|
598 |
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|
599 switch (line_bbox.size ()) |
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600 { |
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changeset
|
601 case 0: |
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changeset
|
602 break; |
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|
603 |
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diff
changeset
|
604 case 1: |
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605 bbox = line_bbox.front ().extract (0, 0, 0, 3); |
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606 break; |
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607 |
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608 default: |
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609 for (const auto& lbox : line_bbox) |
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610 { |
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611 if (bbox.is_empty ()) |
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612 bbox = lbox.extract (0, 0, 0, 3); |
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613 else |
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614 { |
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615 bbox(1) -= lbox(3); |
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616 bbox(3) += lbox(3); |
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617 bbox(2) = octave::math::max (bbox(2), lbox(2)); |
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618 } |
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619 } |
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620 break; |
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621 } |
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622 } |
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623 |
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624 void |
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625 ft_text_renderer::update_line_bbox (void) |
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626 { |
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627 // Called after a font change, when in MODE_BBOX mode, to update the |
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628 // current line bbox with the new font metrics. This also includes the |
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629 // current yoffset, that is the offset of the current glyph's baseline |
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630 // the line's baseline. |
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631 |
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632 if (mode == MODE_BBOX) |
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633 { |
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634 int asc = font.get_face ()->size->metrics.ascender >> 6; |
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635 int desc = font.get_face ()->size->metrics.descender >> 6; |
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636 |
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637 Matrix& bb = line_bbox.back (); |
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638 |
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639 if ((yoffset + desc) < bb(1)) |
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640 { |
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641 // The new font goes below the bottom of the current bbox. |
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642 |
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643 int delta = bb(1) - (yoffset + desc); |
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644 |
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645 bb(1) -= delta; |
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646 bb(3) += delta; |
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647 } |
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648 |
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649 if ((yoffset + asc) > (bb(1) + bb(3))) |
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650 { |
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651 // The new font goes above the top of the current bbox. |
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652 |
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653 int delta = (yoffset + asc) - (bb(1) + bb(3)); |
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654 |
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655 bb(3) += delta; |
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656 } |
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|
657 } |
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658 } |
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659 |
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660 void |
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661 ft_text_renderer::set_mode (int m) |
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662 { |
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663 mode = m; |
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664 |
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665 switch (mode) |
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|
666 { |
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667 case MODE_BBOX: |
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668 xoffset = line_yoffset = yoffset = 0; |
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669 bbox = Matrix (1, 4, 0.0); |
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670 line_bbox.clear (); |
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671 push_new_line (); |
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672 break; |
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|
673 |
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674 case MODE_RENDER: |
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675 if (bbox.numel () != 4) |
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|
676 { |
22515
77b50a83ec11
Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
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diff
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|
677 ::error ("ft_text_renderer: invalid bounding box, cannot render"); |
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678 |
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679 xoffset = line_yoffset = yoffset = 0; |
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680 pixels = uint8NDArray (); |
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681 } |
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|
682 else |
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|
683 { |
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684 dim_vector d (4, octave_idx_type (bbox(2)), |
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685 octave_idx_type (bbox(3))); |
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686 pixels = uint8NDArray (d, static_cast<uint8_t> (0)); |
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687 xoffset = compute_line_xoffset (line_bbox.front ()); |
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688 line_yoffset = -bbox(1)-1; |
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689 yoffset = 0; |
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|
690 } |
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|
691 break; |
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|
692 |
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|
693 default: |
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694 error ("ft_text_renderer: invalid mode '%d'", mode); |
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|
695 break; |
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|
696 } |
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changeset
|
697 } |
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|
698 |
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|
699 FT_UInt |
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700 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous) |
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701 { |
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|
702 FT_Face face = font.get_face (); |
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703 FT_UInt glyph_index = 0; |
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|
704 |
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|
705 if (face) |
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|
706 { |
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|
707 glyph_index = FT_Get_Char_Index (face, code); |
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|
708 |
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|
709 if (code != '\n' |
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710 && (! glyph_index |
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711 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))) |
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|
712 { |
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|
713 glyph_index = 0; |
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|
714 warn_missing_glyph (code); |
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|
715 } |
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|
716 else |
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|
717 { |
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|
718 switch (mode) |
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|
719 { |
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|
720 case MODE_RENDER: |
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721 if (code == '\n') |
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|
722 { |
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|
723 glyph_index = FT_Get_Char_Index (face, ' '); |
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|
724 if (! glyph_index |
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|
725 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
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|
726 { |
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diff
changeset
|
727 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
728 warn_missing_glyph (' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
729 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
730 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
731 push_new_line (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
732 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
733 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL)) |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
734 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
735 glyph_index = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
736 warn_glyph_render (code); |
b81b08cc4c83
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diff
changeset
|
737 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
738 else |
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maint: Indent namespaces in more files.
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22326
diff
changeset
|
739 { |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
740 FT_Bitmap& bitmap = face->glyph->bitmap; |
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maint: Indent namespaces in more files.
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diff
changeset
|
741 int x0, y0; |
b81b08cc4c83
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diff
changeset
|
742 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
743 if (previous) |
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maint: Indent namespaces in more files.
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diff
changeset
|
744 { |
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maint: Indent namespaces in more files.
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diff
changeset
|
745 FT_Vector delta; |
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maint: Indent namespaces in more files.
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diff
changeset
|
746 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
747 FT_Get_Kerning (face, previous, glyph_index, |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
748 FT_KERNING_DEFAULT, &delta); |
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diff
changeset
|
749 xoffset += (delta.x >> 6); |
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maint: Indent namespaces in more files.
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diff
changeset
|
750 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
751 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
752 x0 = xoffset + face->glyph->bitmap_left; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
753 y0 = line_yoffset + yoffset + face->glyph->bitmap_top; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
754 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
755 // 'w' seems to have a negative -1 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
756 // face->glyph->bitmap_left, this is so we don't |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
757 // index out of bound, and assumes we've allocated |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
758 // the right amount of horizontal space in the bbox. |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
759 if (x0 < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
760 x0 = 0; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
761 |
22331
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diff
changeset
|
762 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++) |
b81b08cc4c83
maint: Indent namespaces in more files.
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|
763 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
764 { |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
765 unsigned char pix = bitmap.buffer[r*bitmap.width+c]; |
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maint: Indent namespaces in more files.
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diff
changeset
|
766 if (x0+c < 0 || x0+c >= pixels.dim2 () |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
767 || y0-r < 0 || y0-r >= pixels.dim3 ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
768 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
769 //::warning ("ft_text_renderer: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)", |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
770 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ()); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
771 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
772 else if (pixels(3, x0+c, y0-r).value () == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
773 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
774 pixels(0, x0+c, y0-r) = color(0); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
775 pixels(1, x0+c, y0-r) = color(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
776 pixels(2, x0+c, y0-r) = color(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
777 pixels(3, x0+c, y0-r) = pix; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
778 } |
b81b08cc4c83
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diff
changeset
|
779 } |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
780 |
b81b08cc4c83
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parents:
22326
diff
changeset
|
781 xoffset += (face->glyph->advance.x >> 6); |
b81b08cc4c83
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parents:
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diff
changeset
|
782 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
783 break; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
784 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
785 case MODE_BBOX: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
786 if (code == '\n') |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
787 { |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
788 glyph_index = FT_Get_Char_Index (face, ' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
789 if (! glyph_index |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
790 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)) |
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maint: Indent namespaces in more files.
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parents:
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changeset
|
791 { |
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maint: Indent namespaces in more files.
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parents:
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changeset
|
792 glyph_index = 0; |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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changeset
|
793 warn_missing_glyph (' '); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
794 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
795 else |
b81b08cc4c83
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diff
changeset
|
796 push_new_line (); |
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22326
diff
changeset
|
797 } |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
798 else |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
799 { |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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22326
diff
changeset
|
800 Matrix& bb = line_bbox.back (); |
b81b08cc4c83
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diff
changeset
|
801 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
802 // If we have a previous glyph, use kerning information. |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
803 // This usually means moving a bit backward before adding |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
804 // the next glyph. That is, "delta.x" is usually < 0. |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
805 if (previous) |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
806 { |
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maint: Indent namespaces in more files.
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diff
changeset
|
807 FT_Vector delta; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
808 |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
809 FT_Get_Kerning (face, previous, glyph_index, |
b81b08cc4c83
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diff
changeset
|
810 FT_KERNING_DEFAULT, &delta); |
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maint: Indent namespaces in more files.
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diff
changeset
|
811 |
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maint: Indent namespaces in more files.
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diff
changeset
|
812 xoffset += (delta.x >> 6); |
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maint: Indent namespaces in more files.
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22326
diff
changeset
|
813 } |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
814 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
815 // Extend current X offset box by the width of the current |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
816 // glyph. Then extend the line bounding box if necessary. |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
817 |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
818 xoffset += (face->glyph->advance.x >> 6); |
b81b08cc4c83
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changeset
|
819 bb(2) = octave::math::max (bb(2), xoffset); |
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diff
changeset
|
820 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
821 break; |
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diff
changeset
|
822 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
823 } |
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diff
changeset
|
824 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
825 |
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diff
changeset
|
826 return glyph_index; |
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changeset
|
827 } |
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diff
changeset
|
828 |
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diff
changeset
|
829 void |
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22326
diff
changeset
|
830 ft_text_renderer::text_to_strlist (const std::string& txt, |
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|
831 std::list<text_renderer::string>& lst, |
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changeset
|
832 Matrix& box, |
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changeset
|
833 int ha, int va, double rot, |
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changeset
|
834 const caseless_str& interp) |
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changeset
|
835 { |
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changeset
|
836 uint8NDArray pxls; |
b81b08cc4c83
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changeset
|
837 |
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diff
changeset
|
838 // First run text_to_pixels which will also build the string list |
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diff
changeset
|
839 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
840 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false); |
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diff
changeset
|
841 |
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maint: Indent namespaces in more files.
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diff
changeset
|
842 lst = strlist; |
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changeset
|
843 } |
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diff
changeset
|
844 |
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diff
changeset
|
845 void |
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maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
846 ft_text_renderer::visit (text_element_string& e) |
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847 { |
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|
848 if (font.is_valid ()) |
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|
849 { |
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850 FT_UInt glyph_index, previous = 0; |
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|
851 |
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852 std::string str = e.string_value (); |
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853 size_t n = str.length (); |
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854 size_t curr = 0; |
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|
855 size_t idx = 0; |
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856 mbstate_t ps; |
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|
857 memset (&ps, 0, sizeof (ps)); // Initialize state to 0. |
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858 wchar_t wc; |
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859 |
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860 text_renderer::string fs (str, font, xoffset, yoffset); |
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|
861 |
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862 while (n > 0) |
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863 { |
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864 size_t r = std::mbrtowc (&wc, str.data () + curr, n, &ps); |
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revamp text rendering classes
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865 |
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866 if (r > 0 |
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867 && r != static_cast<size_t> (-1) |
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|
868 && r != static_cast<size_t> (-2)) |
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869 { |
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870 n -= r; |
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871 curr += r; |
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872 |
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|
873 if (wc == L'\n') |
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|
874 { |
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|
875 // Finish previous string in srtlist before processing |
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876 // the newline character |
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|
877 fs.set_y (line_yoffset + yoffset); |
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|
878 fs.set_color (color); |
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diff
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|
879 std::string s = str.substr (idx, curr - idx - 1); |
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|
880 if (! s.empty ()) |
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|
881 { |
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changeset
|
882 fs.set_string (s); |
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|
883 strlist.push_back (fs); |
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changeset
|
884 } |
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diff
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|
885 } |
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diff
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|
886 |
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changeset
|
887 glyph_index = process_character (wc, previous); |
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67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
888 |
22331
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|
889 if (wc == L'\n') |
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changeset
|
890 { |
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changeset
|
891 previous = 0; |
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changeset
|
892 // Start a new string in strlist |
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changeset
|
893 idx = curr; |
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|
894 fs = text_renderer::string (str.substr (idx), font, |
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|
895 line_xoffset, yoffset); |
b81b08cc4c83
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|
896 |
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|
897 } |
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changeset
|
898 else |
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changeset
|
899 previous = glyph_index; |
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diff
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|
900 } |
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changeset
|
901 else |
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changeset
|
902 { |
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diff
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|
903 if (r != 0) |
b81b08cc4c83
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changeset
|
904 ::warning ("ft_text_renderer: failed to decode string `%s' with " |
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maint: Indent namespaces in more files.
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diff
changeset
|
905 "locale `%s'", str.c_str (), |
b81b08cc4c83
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diff
changeset
|
906 std::setlocale (LC_CTYPE, 0)); |
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maint: Indent namespaces in more files.
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changeset
|
907 break; |
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diff
changeset
|
908 } |
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diff
changeset
|
909 } |
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maint: Indent namespaces in more files.
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22326
diff
changeset
|
910 |
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maint: Indent namespaces in more files.
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diff
changeset
|
911 if (! fs.get_string ().empty ()) |
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diff
changeset
|
912 { |
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
913 fs.set_y (line_yoffset + yoffset); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
914 fs.set_color (color); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
915 strlist.push_back (fs); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
916 } |
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maint: Indent namespaces in more files.
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diff
changeset
|
917 } |
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diff
changeset
|
918 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
919 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
920 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
921 ft_text_renderer::visit (text_element_list& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
922 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
923 // 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
|
924 |
22331
b81b08cc4c83
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changeset
|
925 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
926 uint8NDArray saved_color (color); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
927 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
928 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
929 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
930 font = saved_font; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
931 color = saved_color; |
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maint: Indent namespaces in more files.
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diff
changeset
|
932 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
933 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
934 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
935 ft_text_renderer::visit (text_element_subscript& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
936 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
937 ft_font saved_font (font); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
938 int saved_line_yoffset = line_yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
939 int saved_yoffset = yoffset; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
940 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
941 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
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maint: Indent namespaces in more files.
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diff
changeset
|
942 font.get_size () - 2); |
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diff
changeset
|
943 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
944 if (font.is_valid ()) |
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maint: Indent namespaces in more files.
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diff
changeset
|
945 { |
b81b08cc4c83
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diff
changeset
|
946 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
|
947 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
948 // Shifting the baseline by 2/3 the font height seems to produce |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
949 // decent result. |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
950 yoffset -= (h * 2) / 3; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
951 |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
952 if (mode == MODE_BBOX) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
953 update_line_bbox (); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
954 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
955 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
956 text_processor::visit (e); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
957 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
958 font = saved_font; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
959 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
960 // cannot be restored, because the saved value is not relevant anymore. |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
961 if (line_yoffset == saved_line_yoffset) |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
962 yoffset = saved_yoffset; |
b81b08cc4c83
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diff
changeset
|
963 } |
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.
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parents:
22326
diff
changeset
|
965 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
966 ft_text_renderer::visit (text_element_superscript& e) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
967 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
968 ft_font saved_font (font); |
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969 int saved_line_yoffset = line_yoffset; |
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970 int saved_yoffset = yoffset; |
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971 |
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972 set_font (font.get_name (), font.get_weight (), font.get_angle (), |
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973 font.get_size () - 2); |
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974 |
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975 if (saved_font.is_valid ()) |
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976 { |
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977 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6; |
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978 |
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979 // Shifting the baseline by 2/3 base font ascender seems to produce |
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980 // decent result. |
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981 yoffset += (s_asc * 2) / 3; |
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982 |
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983 if (mode == MODE_BBOX) |
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984 update_line_bbox (); |
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985 } |
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|
986 |
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|
987 text_processor::visit (e); |
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988 |
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989 font = saved_font; |
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990 // If line_yoffset changed, this means we moved to a new line; hence yoffset |
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991 // cannot be restored, because the saved value is not relevant anymore. |
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992 if (line_yoffset == saved_line_yoffset) |
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|
993 yoffset = saved_yoffset; |
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994 } |
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|
995 |
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|
996 void |
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997 ft_text_renderer::visit (text_element_color& e) |
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998 { |
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999 if (mode == MODE_RENDER) |
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|
1000 set_color (e.get_color ()); |
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1001 } |
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|
1002 |
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1003 void |
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1004 ft_text_renderer::visit (text_element_fontsize& e) |
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1005 { |
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1006 double sz = e.get_fontsize (); |
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1007 |
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1008 // FIXME: Matlab documentation says that the font size is expressed |
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1009 // in the text object FontUnit. |
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1010 |
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1011 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz); |
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1012 |
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1013 if (mode == MODE_BBOX) |
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1014 update_line_bbox (); |
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1015 } |
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|
1016 |
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|
1017 void |
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1018 ft_text_renderer::visit (text_element_fontname& e) |
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|
1019 { |
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1020 set_font (e.get_fontname (), font.get_weight (), font.get_angle (), |
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|
1021 font.get_size ()); |
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1022 |
22331
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1023 if (mode == MODE_BBOX) |
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1024 update_line_bbox (); |
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|
1025 } |
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|
1026 |
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changeset
|
1027 void |
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1028 ft_text_renderer::visit (text_element_fontstyle& e) |
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|
1029 { |
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changeset
|
1030 switch (e.get_fontstyle ()) |
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changeset
|
1031 { |
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|
1032 case text_element_fontstyle::normal: |
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|
1033 set_font (font.get_name (), "normal", "normal", font.get_size ()); |
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|
1034 break; |
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changeset
|
1035 |
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changeset
|
1036 case text_element_fontstyle::bold: |
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|
1037 set_font (font.get_name (), "bold", "normal", font.get_size ()); |
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maint: Indent namespaces in more files.
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|
1038 break; |
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maint: Indent namespaces in more files.
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changeset
|
1039 |
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1040 case text_element_fontstyle::italic: |
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|
1041 set_font (font.get_name (), "normal", "italic", font.get_size ()); |
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|
1042 break; |
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|
1043 |
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|
1044 case text_element_fontstyle::oblique: |
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|
1045 set_font (font.get_name (), "normal", "oblique", font.get_size ()); |
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changeset
|
1046 break; |
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|
1047 } |
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changeset
|
1048 |
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|
1049 if (mode == MODE_BBOX) |
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changeset
|
1050 update_line_bbox (); |
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|
1051 } |
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parents:
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changeset
|
1052 |
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changeset
|
1053 void |
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changeset
|
1054 ft_text_renderer::visit (text_element_symbol& e) |
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changeset
|
1055 { |
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changeset
|
1056 uint32_t code = e.get_symbol_code (); |
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diff
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|
1057 |
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|
1058 text_renderer::string fs (std::string ("-"), font, xoffset, yoffset); |
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|
1059 |
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changeset
|
1060 if (code != text_element_symbol::invalid_code && font.is_valid ()) |
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changeset
|
1061 { |
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changeset
|
1062 process_character (code); |
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diff
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|
1063 fs.set_code (code); |
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|
1064 } |
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changeset
|
1065 else if (font.is_valid ()) |
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|
1066 ::warning ("ignoring unknown symbol: %d", e.get_symbol ()); |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
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21200
diff
changeset
|
1067 |
22331
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|
1068 if (fs.get_code ()) |
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changeset
|
1069 { |
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changeset
|
1070 fs.set_y (line_yoffset + yoffset); |
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maint: Indent namespaces in more files.
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|
1071 fs.set_color (color); |
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maint: Indent namespaces in more files.
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|
1072 strlist.push_back (fs); |
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maint: Indent namespaces in more files.
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changeset
|
1073 } |
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changeset
|
1074 } |
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changeset
|
1075 |
b81b08cc4c83
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changeset
|
1076 void |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1077 ft_text_renderer::visit (text_element_combined& e) |
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maint: Indent namespaces in more files.
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changeset
|
1078 { |
b81b08cc4c83
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changeset
|
1079 int saved_xoffset = xoffset; |
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changeset
|
1080 int max_xoffset = xoffset; |
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changeset
|
1081 |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
1082 for (auto *txt_elt : e) |
22331
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diff
changeset
|
1083 { |
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diff
changeset
|
1084 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
|
1085 txt_elt->accept (*this); |
22331
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diff
changeset
|
1086 max_xoffset = octave::math::max (xoffset, max_xoffset); |
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maint: Indent namespaces in more files.
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diff
changeset
|
1087 } |
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diff
changeset
|
1088 |
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1089 xoffset = max_xoffset; |
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1090 } |
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
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|
1091 |
22331
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1092 void |
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1093 ft_text_renderer::reset (void) |
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1094 { |
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1095 set_mode (MODE_BBOX); |
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1096 set_color (Matrix (1, 3, 0.0)); |
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1097 } |
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|
1098 |
22331
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1099 void |
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1100 ft_text_renderer::set_color (const Matrix& c) |
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1101 { |
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1102 if (c.numel () == 3) |
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1103 { |
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1104 color(0) = static_cast<uint8_t> (c(0)*255); |
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1105 color(1) = static_cast<uint8_t> (c(1)*255); |
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1106 color(2) = static_cast<uint8_t> (c(2)*255); |
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1107 } |
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1108 else |
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1109 ::warning ("ft_text_renderer::set_color: invalid color"); |
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1110 } |
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|
1111 |
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1112 uint8NDArray |
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|
1113 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation) |
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1114 { |
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|
1115 set_mode (MODE_BBOX); |
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|
1116 elt->accept (*this); |
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|
1117 compute_bbox (); |
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1118 box = bbox; |
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1119 |
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1120 set_mode (MODE_RENDER); |
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1121 // Clear the list of parsed strings |
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|
1122 strlist.clear (); |
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1123 |
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1124 if (pixels.numel () > 0) |
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|
1125 { |
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|
1126 elt->accept (*this); |
21209
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revamp text rendering classes
John W. Eaton <jwe@octave.org>
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|
1127 |
22331
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|
1128 switch (rotation) |
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|
1129 { |
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|
1130 case ROTATION_0: |
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1131 break; |
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|
1132 |
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|
1133 case ROTATION_90: |
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|
1134 { |
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|
1135 Array<octave_idx_type> perm (dim_vector (3, 1)); |
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changeset
|
1136 perm(0) = 0; |
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|
1137 perm(1) = 2; |
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|
1138 perm(2) = 1; |
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|
1139 pixels = pixels.permute (perm); |
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|
1140 |
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|
1141 Array<idx_vector> idx (dim_vector (3, 1)); |
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|
1142 idx(0) = idx_vector (':'); |
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|
1143 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
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|
1144 idx(2) = idx_vector (':'); |
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|
1145 pixels = uint8NDArray (pixels.index (idx)); |
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changeset
|
1146 } |
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diff
changeset
|
1147 break; |
21209
67d2965af0b5
revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
1148 |
22331
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changeset
|
1149 case ROTATION_180: |
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|
1150 { |
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|
1151 Array<idx_vector> idx (dim_vector (3, 1)); |
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|
1152 idx(0) = idx_vector (':'); |
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|
1153 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1); |
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|
1154 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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changeset
|
1155 pixels = uint8NDArray (pixels.index (idx)); |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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changeset
|
1156 } |
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diff
changeset
|
1157 break; |
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maint: Indent namespaces in more files.
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changeset
|
1158 |
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John W. Eaton <jwe@octave.org>
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changeset
|
1159 case ROTATION_270: |
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|
1160 { |
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changeset
|
1161 Array<octave_idx_type> perm (dim_vector (3, 1)); |
b81b08cc4c83
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changeset
|
1162 perm(0) = 0; |
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changeset
|
1163 perm(1) = 2; |
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|
1164 perm(2) = 1; |
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changeset
|
1165 pixels = pixels.permute (perm); |
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changeset
|
1166 |
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|
1167 Array<idx_vector> idx (dim_vector (3, 1)); |
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|
1168 idx(0) = idx_vector (':'); |
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|
1169 idx(1) = idx_vector (':'); |
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changeset
|
1170 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1); |
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|
1171 pixels = uint8NDArray (pixels.index (idx)); |
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|
1172 } |
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changeset
|
1173 break; |
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maint: Indent namespaces in more files.
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|
1174 } |
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changeset
|
1175 } |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1176 |
22331
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changeset
|
1177 return pixels; |
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|
1178 } |
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|
1179 |
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|
1180 // Note: |
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|
1181 // x-extent accurately measures width of glyphs. |
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|
1182 // y-extent is overly large because it is measured from baseline-to-baseline. |
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changeset
|
1183 // Calling routines, such as ylabel, may need to account for this mismatch. |
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|
1184 |
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changeset
|
1185 Matrix |
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changeset
|
1186 ft_text_renderer::get_extent (text_element *elt, double rotation) |
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|
1187 { |
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changeset
|
1188 set_mode (MODE_BBOX); |
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|
1189 elt->accept (*this); |
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|
1190 compute_bbox (); |
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|
1191 |
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changeset
|
1192 Matrix extent (1, 2, 0.0); |
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|
1193 |
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|
1194 switch (rotation_to_mode (rotation)) |
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|
1195 { |
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changeset
|
1196 case ROTATION_0: |
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|
1197 case ROTATION_180: |
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changeset
|
1198 extent(0) = bbox(2); |
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changeset
|
1199 extent(1) = bbox(3); |
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changeset
|
1200 break; |
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changeset
|
1201 |
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changeset
|
1202 case ROTATION_90: |
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|
1203 case ROTATION_270: |
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changeset
|
1204 extent(0) = bbox(3); |
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changeset
|
1205 extent(1) = bbox(2); |
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changeset
|
1206 } |
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diff
changeset
|
1207 |
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changeset
|
1208 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1209 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1210 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1211 Matrix |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1212 ft_text_renderer::get_extent (const std::string& txt, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1213 const caseless_str& interpreter) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1214 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1215 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
|
1216 Matrix extent = get_extent (elt, rotation); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1217 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1218 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1219 return extent; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1220 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1221 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1222 int |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1223 ft_text_renderer::rotation_to_mode (double rotation) const |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1224 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1225 // Clip rotation to range [0, 360] |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1226 while (rotation < 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1227 rotation += 360.0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1228 while (rotation > 360.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1229 rotation -= 360.0; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1230 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1231 if (rotation == 0.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1232 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1233 else if (rotation == 90.0) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1234 return ROTATION_90; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1235 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
|
1236 return ROTATION_180; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1237 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
|
1238 return ROTATION_270; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1239 else |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1240 return ROTATION_0; |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1241 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1242 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1243 void |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1244 ft_text_renderer::text_to_pixels (const std::string& txt, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1245 uint8NDArray& pxls, Matrix& box, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1246 int _halign, int valign, double rotation, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1247 const caseless_str& interpreter, |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1248 bool handle_rotation) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1249 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1250 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
|
1251 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1252 halign = _halign; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1253 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1254 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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diff
changeset
|
1255 pxls = render (elt, box, rot_mode); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1256 delete elt; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1257 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1258 if (pxls.is_empty ()) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1259 return; // nothing to render |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1260 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1261 switch (halign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1262 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1263 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1264 box(0) = -box(2)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1265 break; |
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 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1268 box(0) = -box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1269 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1270 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1271 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1272 box(0) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1273 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1274 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1275 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1276 switch (valign) |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1277 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1278 case 1: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1279 box(1) = -box(3)/2; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1280 break; |
9403
4af6e29449c1
[mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff
changeset
|
1281 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1282 case 2: |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1283 box(1) = -box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1284 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1285 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1286 case 3: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1287 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1288 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1289 case 4: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1290 box(1) = -box(3)-box(1); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1291 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1292 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1293 default: |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1294 box(1) = 0; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1295 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1296 } |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1297 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1298 if (handle_rotation) |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
1299 { |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1300 switch (rot_mode) |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1301 { |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1302 case ROTATION_90: |
b81b08cc4c83
maint: Indent namespaces in more files.
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changeset
|
1303 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1304 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1305 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1306 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1307 |
b81b08cc4c83
maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1308 case ROTATION_180: |
b81b08cc4c83
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John W. Eaton <jwe@octave.org>
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changeset
|
1309 box(0) = -box(0)-box(2); |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1310 box(1) = -box(1)-box(3); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
22326
diff
changeset
|
1311 break; |
17271
cb7233cfbf43
Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents:
17270
diff
changeset
|
1312 |
22331
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1313 case ROTATION_270: |
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maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents:
22326
diff
changeset
|
1314 std::swap (box(0), box(1)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1315 std::swap (box(2), box(3)); |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1316 box(1) = -box(1)-box(3); |
b81b08cc4c83
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parents:
22326
diff
changeset
|
1317 break; |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1318 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1319 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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parents:
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diff
changeset
|
1320 } |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1321 |
b81b08cc4c83
maint: Indent namespaces in more files.
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diff
changeset
|
1322 ft_text_renderer::ft_font::ft_font (const ft_font& ft) |
b81b08cc4c83
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diff
changeset
|
1323 : text_renderer::font (ft), face (0) |
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diff
changeset
|
1324 { |
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parents:
22326
diff
changeset
|
1325 #if defined (HAVE_FT_REFERENCE_FACE) |
b81b08cc4c83
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diff
changeset
|
1326 FT_Face ft_face = ft.get_face (); |
b81b08cc4c83
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diff
changeset
|
1327 |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1328 if (ft_face && FT_Reference_Face (ft_face) == 0) |
b81b08cc4c83
maint: Indent namespaces in more files.
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22326
diff
changeset
|
1329 face = ft_face; |
b81b08cc4c83
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diff
changeset
|
1330 #endif |
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1331 } |
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1332 |
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1333 ft_text_renderer::ft_font& |
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1334 ft_text_renderer::ft_font::operator = (const ft_font& ft) |
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1335 { |
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1336 if (&ft != this) |
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1337 { |
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1338 text_renderer::font::operator = (ft); |
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Michael Goffioul <michael.goffioul@gmail.com>
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1339 |
17787
175b392e91fe
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1340 if (face) |
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1341 { |
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1342 FT_Done_Face (face); |
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1343 face = 0; |
17787
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|
1344 } |
17330
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1345 |
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1346 #if defined (HAVE_FT_REFERENCE_FACE) |
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1347 FT_Face ft_face = ft.get_face (); |
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Allow to compile with older freetype on RHEL5 (bug #39823).
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|
1348 |
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1349 if (ft_face && FT_Reference_Face (ft_face) == 0) |
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1350 face = ft_face; |
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Allow to compile with older freetype on RHEL5 (bug #39823).
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|
1351 #endif |
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1352 } |
17330
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|
1353 |
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1354 return *this; |
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1355 } |
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|
1356 |
22331
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1357 FT_Face |
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|
1358 ft_text_renderer::ft_font::get_face (void) const |
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1359 { |
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1360 if (! face && ! name.empty ()) |
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1361 { |
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1362 face = ft_manager::get_font (name, weight, angle, size); |
17330
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|
1363 |
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1364 if (face) |
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1365 { |
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1366 if (FT_Set_Char_Size (face, 0, size*64, 0, 0)) |
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1367 ::warning ("ft_text_renderer: unable to set font size to %g", size); |
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1368 } |
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1369 else |
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1370 ::warning ("ft_text_renderer: unable to load appropriate font"); |
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1371 } |
17330
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|
1372 |
22331
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1373 return face; |
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1374 } |
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|
1375 } |
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|
1376 |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1377 #endif |
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|
1378 |
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|
1379 namespace octave |
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|
1380 { |
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|
1381 base_text_renderer * |
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|
1382 make_ft_text_renderer (void) |
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|
1383 { |
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|
1384 #if defined (HAVE_FREETYPE) |
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|
1385 return new ft_text_renderer (); |
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diff
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|
1386 #else |
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|
1387 return 0; |
21209
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|
1388 #endif |
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|
1389 } |
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revamp text rendering classes
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|
1390 } |