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annotate libinterp/corefcn/ft-text-renderer.cc @ 27923:bd51beb6205e

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update formatting of copyright notices * Use <https://octave.org/copyright/> instead of <https://octave.org/COPYRIGHT.html/>. * For consistency with other comments in the Octave sources, use C++-style comments for copyright blocks in C and C++ files. * Use delimiters above and below copyright blocks that are appropriate for the language used in the file. * Eliminate extra spacing inside copyright blocks. * lex.ll (looks_like_copyright): Also allow newlines and carriage returns before the word "Copyright". * scripts/mk-doc.pl (gethelp): Also skip empty comment lines. * bp-table.cc, type.m: Adjust tests.
author John W. Eaton <jwe@octave.org>
date Wed, 08 Jan 2020 11:59:41 -0500
parents 1891570abac8
children 11d66485fc19
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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27923
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2009-2020 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include "base-text-renderer.h"
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31 #include "ft-text-renderer.h"
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32
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33 #if defined (HAVE_FREETYPE)
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34
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35 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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36 # pragma GCC diagnostic push
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37 # pragma GCC diagnostic ignored "-Wold-style-cast"
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38 #endif
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39
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40 #include <ft2build.h>
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41 #include FT_FREETYPE_H
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42 #include FT_GLYPH_H
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43
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44 #if defined (HAVE_FONTCONFIG)
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45 # include <fontconfig/fontconfig.h>
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46 #endif
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47
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48 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
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49 # pragma GCC diagnostic pop
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50 #endif
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51
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52 #include <clocale>
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53 #include <cwchar>
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54 #include <map>
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55 #include <utility>
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56
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57 #include "singleton-cleanup.h"
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58 #include "unistr-wrappers.h"
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59
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60 #include "defaults.h"
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61 #include "error.h"
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62 #include "file-ops.h"
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63 #include "oct-env.h"
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64 #include "pr-output.h"
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65 #include "text-renderer.h"
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66
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67 namespace octave
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68 {
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69 // FIXME: maybe issue at most one warning per glyph/font/size/weight
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70 // combination.
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71
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72 static void
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73 warn_missing_glyph (FT_ULong c)
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74 {
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75 warning_with_id ("Octave:missing-glyph",
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76 "text_renderer: skipping missing glyph for character '%lx'", c);
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77 }
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78
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79 static void
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80 warn_glyph_render (FT_ULong c)
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81 {
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82 warning_with_id ("Octave:glyph-render",
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83 "text_renderer: unable to render glyph for character '%lx'", c);
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84 }
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85
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86 #if defined (_MSC_VER)
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87 // FIXME: is this really needed?
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88 //
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89 // This is just a trick to avoid multiple symbol definitions.
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90 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
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91 // that will cause MSVC not to generate a new instantiation and
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92 // use the imported one instead.
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93 # include "PermMatrix.h"
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94 #endif
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95
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96 // Forward declaration
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97 static void ft_face_destroyed (void *object);
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98
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99 class
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100 ft_manager
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101 {
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102 private:
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103
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104 ft_manager (void)
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105 : library (), freetype_initialized (false), fontconfig_initialized (false)
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106 {
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107 if (FT_Init_FreeType (&library))
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108 error ("unable to initialize FreeType library");
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109 else
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110 freetype_initialized = true;
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111
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112 #if defined (HAVE_FONTCONFIG)
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113 if (! FcInit ())
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114 error ("unable to initialize fontconfig library");
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115 else
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116 fontconfig_initialized = true;
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117 #endif
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118 }
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119
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120 public:
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121
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122 // No copying!
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123
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124 ft_manager (const ft_manager&) = delete;
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125
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126 ft_manager& operator = (const ft_manager&) = delete;
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127
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128 private:
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129
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130 ~ft_manager (void)
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131 {
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132 if (freetype_initialized)
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133 FT_Done_FreeType (library);
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134
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135 #if defined (HAVE_FONTCONFIG)
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136 // FIXME: Skip the call to FcFini because it can trigger the assertion
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137 //
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138 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
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139 //
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140 // if (fontconfig_initialized)
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141 // FcFini ();
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142 #endif
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143 }
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144
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John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
145 public:
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
146
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
147 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
148 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
149 bool retval = true;
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
150
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
151 if (! instance)
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Rik <rik@octave.org>
parents: 22331
diff changeset
152 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
153 instance = new ft_manager ();
26369
0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347).
Andreas Weber <octave@josoansi.de>
parents: 26340
diff changeset
154 singleton_cleanup_list::add (cleanup_instance);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
155 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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156
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
157 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
158 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
159
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
160 static void cleanup_instance (void) { delete instance; instance = nullptr; }
13992
e1f76bfe0452 apply singleton_cleanup to a few more classes
John W. Eaton <jwe@octave.org>
parents: 13730
diff changeset
161
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
162 static FT_Face get_font (const std::string& name, const std::string& weight,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
163 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
164 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
165 return (instance_ok ()
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
166 ? instance->do_get_font (name, weight, angle, size)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
167 : nullptr);
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
168 }
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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169
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
170 static octave_map get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
171 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
172 return (instance_ok ()
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
173 ? instance->do_get_system_fonts ()
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
174 : octave_map ());
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
175 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
176
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Rik <rik@octave.org>
parents: 22331
diff changeset
177 static void font_destroyed (FT_Face face)
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Rik <rik@octave.org>
parents: 22331
diff changeset
178 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
179 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
180 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
181 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
182
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
183 private:
12122
f4689107dd8c Explicitly disallow copying in some classes.
Pascal Dupuis <Pascal.Dupuis@uclouvain.be>
parents: 11586
diff changeset
184
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
185 static ft_manager *instance;
9403
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Michael Goffioul <michael.goffioul@gmail.com>
parents:
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186
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
187 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
188 typedef std::map<ft_key, FT_Face> ft_cache;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
189
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
190 // Cache the fonts loaded by FreeType. This cache only contains
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
191 // weak references to the fonts, strong references are only present
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
192 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
193 ft_cache cache;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
194
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
195 static octave_map do_get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
196 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
197 static octave_map font_map;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
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198
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
199 if (font_map.isempty ())
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
200 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
201 FcConfig *config = FcConfigGetCurrent();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
202 FcPattern *pat = FcPatternCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
203 FcObjectSet *os = FcObjectSetBuild (FC_FAMILY, FC_SLANT, FC_WEIGHT,
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
204 FC_CHARSET, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
205 FcFontSet *fs = FcFontList (config, pat, os);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
206
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
207 if (fs->nfont > 0)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
208 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
209 // Mark fonts that have at least all printable ASCII chars
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
210 FcCharSet *minimal_charset = FcCharSetCreate ();
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
211 for (int i = 32; i < 127; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
212 FcCharSetAddChar (minimal_charset, static_cast<FcChar32> (i));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
213
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
214 string_vector fields (4);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
215 fields(0) = "family";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
216 fields(1) = "angle";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
217 fields(2) = "weight";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
218 fields(3) = "suitable";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
219
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
220 dim_vector dv (1, fs->nfont);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
221 Cell families (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
222 Cell angles (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
223 Cell weights (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
224 Cell suitable (dv);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
225
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
226 unsigned char *family;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
227 int val;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
228 for (int i = 0; fs && i < fs->nfont; i++)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
229 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
230 FcPattern *font = fs->fonts[i];
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
231 if (FcPatternGetString (font, FC_FAMILY, 0, &family)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
232 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
233 families(i) = std::string (reinterpret_cast<char*> (family));
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
234 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
235 families(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
236
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
237 if (FcPatternGetInteger (font, FC_SLANT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
238 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
239 angles(i) = (val == FC_SLANT_ITALIC
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
240 || val == FC_SLANT_OBLIQUE)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
241 ? "italic" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
242 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
243 angles(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
244
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
245 if (FcPatternGetInteger (font, FC_WEIGHT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
246 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
247 weights(i) = (val == FC_WEIGHT_BOLD
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
248 || val == FC_WEIGHT_DEMIBOLD)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
249 ? "bold" : "normal";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
250 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
251 weights(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
252
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
253 FcCharSet *cset;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
254 if (FcPatternGetCharSet (font, FC_CHARSET, 0, &cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
255 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
256 suitable(i) = (FcCharSetIsSubset (minimal_charset, cset)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
257 ? true : false);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
258 else
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
259 suitable(i) = false;
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
260 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
261
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
262 font_map = octave_map (dv, fields);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
263
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
264 font_map.assign ("family", families);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
265 font_map.assign ("angle", angles);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
266 font_map.assign ("weight", weights);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
267 font_map.assign ("suitable", suitable);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
268
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
269 if (fs)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
270 FcFontSetDestroy (fs);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
271 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
272 }
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
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273
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274 return font_map;
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275 }
698c8b08fe8c New function uisetfont (bug #57130).
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276
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277 FT_Face do_get_font (const std::string& name, const std::string& weight,
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278 const std::string& angle, double size)
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279 {
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280 FT_Face retval = nullptr;
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281
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282 #if defined (HAVE_FT_REFERENCE_FACE)
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283 // Look first into the font cache, then use fontconfig. If the font
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diff changeset
284 // is present in the cache, simply add a reference and return it.
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285
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286 ft_key key (name + ':' + weight + ':' + angle, size);
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287 ft_cache::const_iterator it = cache.find (key);
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288
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289 if (it != cache.end ())
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290 {
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291 FT_Reference_Face (it->second);
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292 return it->second;
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293 }
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294 #endif
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295
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296 static std::string fonts_dir;
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297
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298 if (fonts_dir.empty ())
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299 {
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300 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR");
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301
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302 if (fonts_dir.empty ())
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303 #if defined (SYSTEM_FREEFONT_DIR)
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304 fonts_dir = SYSTEM_FREEFONT_DIR;
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305 #else
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306 fonts_dir = config::oct_fonts_dir ();
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diff changeset
307 #endif
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308 }
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309
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310
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311 // Default font file
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312 std::string file;
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313
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314 if (! fonts_dir.empty ())
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diff changeset
315 {
25336
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316 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans";
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317
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
318 if (weight == "bold")
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319 file += "Bold";
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320
2390079a8aed Provide default font files and use them (bug #52150)
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321 if (angle == "italic" || angle == "oblique")
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diff changeset
322 file += "Oblique";
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diff changeset
323
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diff changeset
324 file += ".otf";
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diff changeset
325 }
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
326
14003
1555c5a177c9 better fix for fontconfig segfault
John W. Eaton <jwe@octave.org>
parents: 13999
diff changeset
327 #if defined (HAVE_FONTCONFIG)
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diff changeset
328 if (name != "*" && fontconfig_initialized)
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329 {
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330 int fc_weight, fc_angle;
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331
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332 if (weight == "bold")
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333 fc_weight = FC_WEIGHT_BOLD;
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334 else
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335 fc_weight = FC_WEIGHT_NORMAL;
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336
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337 if (angle == "italic")
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338 fc_angle = FC_SLANT_ITALIC;
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diff changeset
339 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/.
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340 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
341 else
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diff changeset
342 fc_angle = FC_SLANT_ROMAN;
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343
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diff changeset
344 FcPattern *pat = FcPatternCreate ();
9403
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diff changeset
345
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diff changeset
346 FcPatternAddString (pat, FC_FAMILY,
23447
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diff changeset
347 (reinterpret_cast<const FcChar8 *>
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diff changeset
348 (name.c_str ())));
9616
2093499ec9f4 avoid crash if default font can't be found
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diff changeset
349
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diff changeset
350 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
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diff changeset
351 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
352 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403
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diff changeset
353
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diff changeset
354 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407
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diff changeset
355 {
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diff changeset
356 FcResult res;
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diff changeset
357 FcPattern *match;
9403
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diff changeset
358
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diff changeset
359 FcDefaultSubstitute (pat);
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
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diff changeset
360 match = FcFontMatch (nullptr, pat, &res);
9833
637fa784d102 Allow more font matches
godfrey@isl.Stanford.EDU
parents: 9619
diff changeset
361
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diff changeset
362 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
363 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
364 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
365 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
366 unsigned char *tmp;
9403
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diff changeset
367
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diff changeset
368 FcPatternGetString (match, FC_FILE, 0, &tmp);
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
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diff changeset
369 file = reinterpret_cast<char *> (tmp);
22407
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diff changeset
370 }
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
371 else
24126
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diff changeset
372 ::warning ("could not match any font: %s-%s-%s-%g, using default font",
22407
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diff changeset
373 name.c_str (), weight.c_str (), angle.c_str (),
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
374 size);
9403
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diff changeset
375
22407
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diff changeset
376 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
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diff changeset
377 FcPatternDestroy (match);
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diff changeset
378 }
9403
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diff changeset
379
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diff changeset
380 FcPatternDestroy (pat);
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diff changeset
381 }
9403
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diff changeset
382 #endif
4af6e29449c1 [mq]: graphics_text_engine
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parents:
diff changeset
383
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diff changeset
384 if (file.empty ())
24126
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diff changeset
385 ::warning ("unable to find default font files");
2390079a8aed Provide default font files and use them (bug #52150)
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diff changeset
386 else
22407
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diff changeset
387 {
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
388 if (FT_New_Face (library, file.c_str (), 0, &retval))
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
389 ::warning ("ft_manager: unable to load font: %s", file.c_str ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
390 #if defined (HAVE_FT_REFERENCE_FACE)
22407
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diff changeset
391 else
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
392 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
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diff changeset
393 // Install a finalizer to notify ft_manager that the font is
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
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diff changeset
394 // being destroyed. The class ft_manager only keeps weak
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
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diff changeset
395 // references to font objects.
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
396
22407
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diff changeset
397 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/.
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diff changeset
398 retval->generic.finalizer = ft_face_destroyed;
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
399
22407
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diff changeset
400 // Insert loaded font into the cache.
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
401
22407
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diff changeset
402 cache[key] = retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
403 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
404 #endif
22407
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Rik <rik@octave.org>
parents: 22331
diff changeset
405 }
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
406
22407
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Rik <rik@octave.org>
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diff changeset
407 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/.
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parents: 22331
diff changeset
408 }
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parents:
diff changeset
409
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
410 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
411 {
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
412 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
413 {
23447
db1fdf4384dd maint: Use convention "static_cast<void *>" for casting of pointers.
Rik <rik@octave.org>
parents: 23220
diff changeset
414 ft_key *pkey = reinterpret_cast<ft_key *> (face->generic.data);
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
415
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
416 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
417 delete pkey;
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
418 face->generic.data = nullptr;
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
419 }
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
420 }
17270
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17269
diff changeset
421
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
422 private:
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
423 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
424 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
425 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
426 };
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
427
23457
21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible.
Rik <rik@octave.org>
parents: 23447
diff changeset
428 ft_manager *ft_manager::instance = nullptr;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
429
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
430 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
431 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
432 {
25336
389757b7b6af eliminate redundant octave:: namespace tags
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
433 ft_manager::font_destroyed (reinterpret_cast<FT_Face> (object));
24722
af6c1ed60581 avoid splitting namespace blocks unnecessarily
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
434 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
435
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
436 class
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
437 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
438 ft_text_renderer : public base_text_renderer
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
439 {
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
440 public:
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
441
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
442 enum
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
443 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
444 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
445 MODE_RENDER = 1
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
446 };
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
447
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
448 enum
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
449 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
450 ROTATION_0 = 0,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
451 ROTATION_90 = 1,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
452 ROTATION_180 = 2,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
453 ROTATION_270 = 3
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
454 };
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
455
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
456 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
457
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
458 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
459 : base_text_renderer (), font (), bbox (1, 4, 0.0), halign (0),
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
460 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX),
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
461 color (dim_vector (1, 3), 0), m_do_strlist (false), m_strlist (),
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
462 line_xoffset (0), m_ymin (0), m_ymax (0), m_deltax (0),
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
463 m_max_fontsize (0), m_antialias (true)
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22331
diff changeset
464 { }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
465
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
466 // No copying!
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
467
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
468 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
469
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
470 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
471
22868
87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors
John W. Eaton <jwe@octave.org>
parents: 22865
diff changeset
472 ~ft_text_renderer (void) = default;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
473
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
474 void visit (text_element_string& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
475
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
476 void visit (text_element_list& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
477
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
478 void visit (text_element_subscript& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
479
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
480 void visit (text_element_superscript& e);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
481
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
482 void visit (text_element_color& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
483
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
484 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
485
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
486 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
487
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
488 void visit (text_element_fontstyle& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
489
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
490 void visit (text_element_symbol& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
491
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
492 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
493
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
494 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
495
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
496 uint8NDArray get_pixels (void) const { return pixels; }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
497
22331
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John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
498 Matrix get_boundingbox (void) const { return bbox; }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
499
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
500 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
501 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
502
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
503 Matrix get_extent (text_element *elt, double rotation = 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
504 Matrix 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
505 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
506
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
507 void set_anti_aliasing (bool val) { m_antialias = val; };
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
508
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
509 void set_font (const std::string& name, const std::string& weight,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
510 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
511
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
512 octave_map get_system_fonts (void);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
513
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
514 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
515
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
516 void set_mode (int m);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
517
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
518 void text_to_pixels (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
519 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
520 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
521 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
522 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
523
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
524 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
525
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
526 int rotation_to_mode (double rotation) const;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
527
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
528 // Class to hold information about fonts and a strong
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
529 // reference to the font objects loaded by FreeType.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
530
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
531 class ft_font : public text_renderer::font
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
532 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
533 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
534
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
535 ft_font (void)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
536 : text_renderer::font (), face (nullptr) { }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
537
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
538 ft_font (const std::string& nm, const std::string& wt,
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
539 const std::string& ang, double sz, FT_Face f = nullptr)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
540 : text_renderer::font (nm, wt, ang, sz), face (f)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
541 { }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
542
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
543 ft_font (const ft_font& ft);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
544
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
545 ~ft_font (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
546 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
547 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
548 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
549 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
550
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
551 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
552
b81b08cc4c83 maint: Indent namespaces in more files.
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parents: 22326
diff changeset
553 bool is_valid (void) const { return get_face (); }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
554
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
555 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
556
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
557 private:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
558
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
559 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
560 };
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
561
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
562 void push_new_line (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
563
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
564 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
565
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
566 void compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
567
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
568 int compute_line_xoffset (const Matrix& lb) const;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
569
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
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diff changeset
570 FT_UInt process_character (FT_ULong code, FT_UInt previous = 0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
571
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
572 public:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
573
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
574 void text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
575 std::list<text_renderer::string>& lst, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
576 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
577 const caseless_str& interp);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
578
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
579 private:
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
580
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
581 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
582 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
583
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
584 // Used to stored the bounding box corresponding to the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
585 // The bounding box has the form [x, y, w, h] where x and y represent the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
586 // coordinates of the bottom left corner relative to the anchor point of
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
587 // the text (== start of text on the baseline). Due to font descent or
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
588 // multiple lines, the value y is usually negative.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
589 Matrix bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
590
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
591 // Used to stored the rendered text. It's a 3D matrix with size MxNx4
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
592 // where M and N are the width and height of the bounding box.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
593 uint8NDArray pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
594
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
595 // Used to store the bounding box of each line. This is used to layout
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
596 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
597 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
598
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
599 // The current horizontal alignment. This is used to align multi-line text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
600 int halign;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
601
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
602 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
603 int xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
604
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
605 // The Y offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
606 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
607
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
608 // The Y offset of the baseline for the next glyph. The offset is relative
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
609 // to line_yoffset. The total Y offset is computed with:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
610 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
611 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
612
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
613 // The current mode of the rendering process (box computing or rendering).
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
614 int mode;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
615
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
616 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
617 uint8NDArray color;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
618
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
619 // A list of parsed strings to be used for printing.
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
620 bool m_do_strlist;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
621 std::list<text_renderer::string> m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
622
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
623 // The X offset of the baseline for the current line.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
624 int line_xoffset;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
625
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
626 // Min and max y coordinates of all glyphs in a line.
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
627 FT_Pos m_ymin;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
628 FT_Pos m_ymax;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
629
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
630 // Difference between the advance and the actual extent of the latest glyph
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
631 FT_Pos m_deltax;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
632
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
633 // Used for computing the distance between lines.
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
634 double m_max_fontsize;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
635
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
636 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
637 bool m_antialias;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
638
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
639 };
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
640
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
641 void
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
642 ft_text_renderer::set_font (const std::string& name,
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
643 const std::string& weight,
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
644 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
645 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
646 // FIXME: take "fontunits" into account
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
647 font = ft_font (name, weight, angle, size, nullptr);
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
648 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
649
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
650 octave_map
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
651 ft_text_renderer::get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
652 {
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
653 return ft_manager::get_system_fonts ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
654 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
655
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
656 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
657 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
658 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
659 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
660 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
661 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
662 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
663 // Create a new bbox entry based on the current font.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
664
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
665 FT_Face face = font.get_face ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
666
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
667 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
668 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
669 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
670
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
671 line_bbox.push_back (bb);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
672
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
673 xoffset = yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
674 m_ymin = m_ymax = m_deltax = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
675 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
676 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
677 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
678
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
679 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
680 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
681 // Move to the next line bbox, adjust xoffset based on alignment
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
682 // and yoffset based on the old and new line bbox.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
683
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
684 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
685 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
686 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
687
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
688 xoffset = line_xoffset = compute_line_xoffset (new_bbox);
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
689 line_yoffset -= (-old_bbox(1) + math::round (0.4 * m_max_fontsize)
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
690 + (new_bbox(3) + new_bbox(1)));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
691 yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
692 m_ymin = m_ymax = m_deltax = 0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
693 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
694 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
695 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
696 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
697
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
698 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
699 ft_text_renderer::compute_line_xoffset (const Matrix& lb) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
700 {
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
701 if (! bbox.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
702 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
703 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
704 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
705 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
706 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
707 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
708 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
709 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
710 return (bbox(2) - lb(2));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
711 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
712 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
713
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
714 return 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
715 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
716
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
717 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
718 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
719 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
720 // Stack the various line bbox together and compute the final
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
721 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
722
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
723 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
724
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
725 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
726 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
727 case 0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
728 break;
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: 22326
diff changeset
730 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
731 bbox = line_bbox.front ().extract (0, 0, 0, 3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
732 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
733
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
734 default:
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
735 for (const auto& lbox : line_bbox)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
736 {
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
737 if (bbox.isempty ())
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
738 bbox = lbox.extract (0, 0, 0, 3);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
739 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
740 {
26221
76ac35f71573 Fix regression in multi-line text rendering (bug #55218)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26187
diff changeset
741 double delta = math::round (0.4 * m_max_fontsize) + lbox(3);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
742 bbox(1) -= delta;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
743 bbox(3) += delta;
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23577
diff changeset
744 bbox(2) = math::max (bbox(2), lbox(2));
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
745 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
746 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
747 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
748 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
749 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
750
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
751 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
752 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
753 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
754 // Called after a font change, when in MODE_BBOX mode, to update the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
755 // current line bbox with the new font metrics. This also includes the
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
756 // current yoffset, that is the offset of the current glyph's baseline
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
757 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
758
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
759 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
760 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
761 Matrix& bb = line_bbox.back ();
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
762 bb(1) = m_ymin;
26330
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
763 // Add one pixel to the bbox height to avoid occasional text clipping.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
764 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26221
diff changeset
765 bb(3) = (m_ymax + 1) - m_ymin;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
766 if (m_deltax > 0)
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
767 bb(2) += m_deltax;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
768 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
769 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
770
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
771 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
772 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
773 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
774 mode = m;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
775
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
776 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
777 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
778 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
779 xoffset = line_yoffset = yoffset = 0;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
780 m_max_fontsize = 0.0;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
781 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
782 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
783 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
784 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
785
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
786 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
787 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
788 {
22515
77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102).
Rik <rik@octave.org>
parents: 22407
diff changeset
789 ::error ("ft_text_renderer: invalid bounding box, cannot render");
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
790
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
791 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
792 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
793 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
794 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
795 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
796 dim_vector d (4, octave_idx_type (bbox(2)),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
797 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
798 pixels = uint8NDArray (d, static_cast<uint8_t> (0));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
799 xoffset = compute_line_xoffset (line_bbox.front ());
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
800 line_yoffset = -bbox(1);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
801 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
802 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
803 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
804
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
805 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
806 error ("ft_text_renderer: invalid mode '%d'", mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
807 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
808 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
809 }
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
810 bool is_opaque (const FT_GlyphSlot &glyph, const int x, const int y)
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
811 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
812 // Borrowed from https://stackoverflow.com/questions/14800827/
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
813 // indexing-pixels-in-a-monochrome-freetype-glyph-buffer
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
814 int pitch = std::abs (glyph->bitmap.pitch);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
815 unsigned char *row = &glyph->bitmap.buffer[pitch * y];
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
816 char cvalue = row[x >> 3];
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
817
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
818 return ((cvalue & (128 >> (x & 7))) != 0);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
819 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
820
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
821 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
822 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
823 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
824 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
825 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
826
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
827 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
828 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
829 glyph_index = FT_Get_Char_Index (face, code);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
830
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
831 if (code != '\n' && code != '\t'
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
832 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
833 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
834 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
835 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
836 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
837 }
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
838 else if ((code == '\n') || (code == '\t'))
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
839 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
840 glyph_index = FT_Get_Char_Index (face, ' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
841 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
842 || FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
843 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
844 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
845 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
846 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
847 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
848 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
849 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
850 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
851 // Advance to next multiple of 4 times the width of the "space"
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
852 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
853 int x_tab = 4 * (face->glyph->advance.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
854 xoffset = (1 + std::floor (1. * xoffset / x_tab)) * x_tab;
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
855 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
856 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
857 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
858 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
859 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
860 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
861 case MODE_RENDER:
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
862 if (FT_Render_Glyph (face->glyph, (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
863 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
864 : FT_RENDER_MODE_MONO)))
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
865 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
866 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
867 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
868 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
869 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
870 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
871 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
872 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
873
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
874 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
875 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
876 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
877
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
878 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
879 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
880 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
881 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
882
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
883 x0 = xoffset + face->glyph->bitmap_left;
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
884 y0 = line_yoffset + yoffset + (face->glyph->bitmap_top - 1);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
885
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
886 // 'w' seems to have a negative -1
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
887 // face->glyph->bitmap_left, this is so we don't index out
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
888 // of bound, and assumes we've allocated the right amount of
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
889 // horizontal space in the bbox.
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
890 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
891 x0 = 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
892
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
893 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
894 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
895 {
26858
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
896 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
897 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
898 ? bitmap.buffer[r*bitmap.width+c]
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26619
diff changeset
899 : (is_opaque (face->glyph, c, r) ? 255 : 0));
26995
ab5bfee22d18 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26858
diff changeset
900
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
901 if (x0+c < 0 || x0+c >= pixels.dim2 ()
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
902 || y0-r < 0 || y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
903 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
904 // ::warning ("ft_text_renderer: x %d, y %d",
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
905 // x0+c, y0-r);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
906 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
907 else if (pixels(3, x0+c, y0-r).value () == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
908 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
909 pixels(0, x0+c, y0-r) = color(0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
910 pixels(1, x0+c, y0-r) = color(1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
911 pixels(2, x0+c, y0-r) = color(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
912 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
913 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
914 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
915
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
916 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
917 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
918 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
919
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
920 case MODE_BBOX:
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
921 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
922
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
923 // If we have a previous glyph, use kerning information. This
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
924 // usually means moving a bit backward before adding the next
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
925 // glyph. That is, "delta.x" is usually < 0.
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
926 if (previous)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
927 {
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
928 FT_Vector delta;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
929
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
930 FT_Get_Kerning (face, previous, glyph_index,
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
931 FT_KERNING_DEFAULT, &delta);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
932
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
933 xoffset += (delta.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
934 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
935
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
936 // Extend current X offset box by the width of the current
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
937 // glyph. Then extend the line bounding box if necessary.
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
938
25421
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
939 xoffset += (face->glyph->advance.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25420
diff changeset
940 bb(2) = math::max (bb(2), xoffset);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
941
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
942 // Store the actual bbox vertical coordinates of this character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
943 FT_Glyph glyph;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
944 if (FT_Get_Glyph (face->glyph, &glyph))
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
945 warn_glyph_render (code);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
946 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
947 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
948 FT_BBox glyph_bbox;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
949 FT_Glyph_Get_CBox (glyph, FT_GLYPH_BBOX_UNSCALED,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
950 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
951 m_deltax = (glyph_bbox.xMax - face->glyph->advance.x) >> 6;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
952 m_ymin = math::min ((glyph_bbox.yMin >> 6) + yoffset,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
953 m_ymin);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
954 m_ymax = math::max ((glyph_bbox.yMax >> 6) + yoffset,
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
955 m_ymax);
26478
6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26376
diff changeset
956 FT_Done_Glyph (glyph);
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
957 update_line_bbox ();
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
958 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
959 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
960 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
961 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
962 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
963
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
964 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
965 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
966
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
967 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
968 ft_text_renderer::text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
969 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
970 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
971 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
972 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
973 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
974 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
975
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
976 // First run text_to_pixels which will also build the string list
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
977
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
978 m_strlist = std::list<text_renderer::string> ();
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
979
27102
84ff9953faa1 where possible, eliminate octave:: namespace qualifier inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 26995
diff changeset
980 unwind_protect frame;
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
981 frame.protect_var (m_do_strlist);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
982 frame.protect_var (m_strlist);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
983 m_do_strlist = true;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
984
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
985 text_to_pixels (txt, pxls, box, ha, va, rot, interp, false);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
986
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
987 lst = m_strlist;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
988 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
989
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
990 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
991 ft_text_renderer::visit (text_element_string& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
992 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
993 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
994 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
995 m_max_fontsize = std::max (m_max_fontsize, font.get_size ());
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
996 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
997
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
998 std::string str = e.string_value ();
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
999 const uint8_t *c = reinterpret_cast<const uint8_t *> (str.c_str ());
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1000 uint32_t u32_c;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1001
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1002 size_t n = str.size ();
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1003 size_t icurr = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1004 size_t ibegin = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1005
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1006 // Initialize a new string
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1007 std::string fname = font.get_face ()->family_name;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1008 text_renderer::string fs (str, font, xoffset, yoffset);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1009 std::vector<double> xdata;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1010
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1011 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1012 {
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1013 // Retrieve the length and the u32 representation of the current
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1014 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1015 int mblen = octave_u8_strmbtouc_wrapper (&u32_c, c + icurr);
27142
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1016 if (mblen < 1)
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1017 {
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1018 // This is not an UTF-8 character, use a replacement character
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1019 mblen = 1;
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1020 u32_c = 0xFFFD;
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26617
diff changeset
1021 }
27623
698c8b08fe8c New function uisetfont (bug #57130).
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 27150
diff changeset
1022
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1023 n -= mblen;
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1024
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1025 if (m_do_strlist && mode == MODE_RENDER)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1026 {
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1027 if (u32_c == 10)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1028 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1029 // Finish previous string in m_strlist before processing
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1030 // the newline character
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1031 fs.set_y (line_yoffset + yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1032 fs.set_color (color);
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1033
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1034 std::string s = str.substr (ibegin, icurr - ibegin);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1035 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1036 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1037 fs.set_string (s);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1038 fs.set_y (line_yoffset + yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1039 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1040 fs.set_family (fname);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1041 m_strlist.push_back (fs);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1042 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1043 }
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1044 else
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1045 xdata.push_back (xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1046 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1047
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1048 glyph_index = process_character (u32_c, previous);
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1049
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1050 if (u32_c == 10)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1051 {
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1052 previous = 0;
26617
98afb8bbd1f6 maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 26573
diff changeset
1053
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1054 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1055 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1056 // Start a new string in m_strlist
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1057 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1058 xdata.clear ();
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1059 fs = text_renderer::string (str.substr (ibegin), font,
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1060 line_xoffset, yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1061 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1062 }
25362
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1063 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1064 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646).
Markus Mützel <markus.muetzel@gmx.de>
parents: 25336
diff changeset
1065
26187
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26152
diff changeset
1066 icurr += mblen;
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1067 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1068
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1069 if (m_do_strlist && mode == MODE_RENDER && ! fs.get_string ().empty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1070 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1071 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1072 fs.set_color (color);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1073 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1074 fs.set_family (fname);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1075 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1076 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1077 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1078 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1079
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1080 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1081 ft_text_renderer::visit (text_element_list& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1082 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1083 // 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
1084
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1085 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1086 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1087
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1088 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1089
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1090 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1091 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1092 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1093
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1094 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1095 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
1096 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1097 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1098 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1099 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1100
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1101 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1102 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1103
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1104 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1105 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1106 int h = font.get_face ()->size->metrics.height >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1107
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1108 // Shifting the baseline by 2/3 the font height seems to produce
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1109 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1110 yoffset -= (h * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1111
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1112 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1113 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1114 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1115
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1116 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1117
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1118 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1119 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1120 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1121 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1122 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1123 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1124
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1125 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1126 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
1127 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1128 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1129 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1130 int saved_yoffset = yoffset;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1131
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1132 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1133 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1134
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1135 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1136 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1137 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1138
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1139 // Shifting the baseline by 2/3 base font ascender seems to produce
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1140 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1141 yoffset += (s_asc * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1142
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1143 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1144 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1145 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1146
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1147 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1148
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1149 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1150 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1151 // cannot be restored, because the saved value is not relevant anymore.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1152 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1153 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1154 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1155
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1156 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1157 ft_text_renderer::visit (text_element_color& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1158 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1159 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1160 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1161 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1162
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1163 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1164 ft_text_renderer::visit (text_element_fontsize& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1165 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1166 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1167
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1168 // FIXME: Matlab documentation says that the font size is expressed
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1169 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1170
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1171 set_font (font.get_name (), font.get_weight (), font.get_angle (), sz);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1172
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1173 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1174 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1175 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1176
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1177 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1178 ft_text_renderer::visit (text_element_fontname& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1179 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1180 set_font (e.get_fontname (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1181 font.get_size ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1182
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1183 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1184 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1185 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1186
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1187 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1188 ft_text_renderer::visit (text_element_fontstyle& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1189 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1190 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1191 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1192 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1193 set_font (font.get_name (), "normal", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1194 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1195
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1196 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1197 set_font (font.get_name (), "bold", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1198 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1199
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1200 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1201 set_font (font.get_name (), "normal", "italic", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1202 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1203
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1204 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1205 set_font (font.get_name (), "normal", "oblique", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1206 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1207 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1208
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1209 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1210 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1211 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1212
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1213 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1214 ft_text_renderer::visit (text_element_symbol& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1215 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1216 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1217
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1218 std::vector<double> xdata (1, xoffset);
23807
336f89b6208b Use character literals 'c' rather than string literals "c" when possible.
Rik <rik@octave.org>
parents: 23795
diff changeset
1219 text_renderer::string fs ("-", font, xoffset, yoffset);
22331
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 if (code != text_element_symbol::invalid_code && font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1222 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1223 process_character (code);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1224 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1225 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1226 fs.set_code (code);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1227 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1228 }
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1229 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1230 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1231 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1232
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1233 if (m_do_strlist && mode == MODE_RENDER && fs.get_code ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1234 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1235 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1236 fs.set_color (color);
24076
1b7e49a72c62 improve text rendering in svg printout (bug #48567)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 23807
diff changeset
1237 fs.set_family (font.get_face ()->family_name);
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1238 m_strlist.push_back (fs);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1239 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1240 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1241
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1242 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1243 ft_text_renderer::visit (text_element_combined& e)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1244 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1245 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1246 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1247
22862
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents: 22755
diff changeset
1248 for (auto *txt_elt : e)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1249 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1250 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
1251 txt_elt->accept (*this);
23696
08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23577
diff changeset
1252 max_xoffset = math::max (xoffset, max_xoffset);
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1253 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1254
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1255 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1256 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1257
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1258 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1259 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1260 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1261 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1262 set_color (Matrix (1, 3, 0.0));
26573
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287)
Pantxo Diribarne <pantxo.diribarne@gmail.com>
parents: 26478
diff changeset
1263 m_strlist = std::list<text_renderer::string> ();
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1264 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1265
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1266 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1267 ft_text_renderer::set_color (const Matrix& c)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1268 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1269 if (c.numel () == 3)
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 color(0) = static_cast<uint8_t> (c(0)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1272 color(1) = static_cast<uint8_t> (c(1)*255);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1273 color(2) = static_cast<uint8_t> (c(2)*255);
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 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1276 ::warning ("ft_text_renderer::set_color: invalid color");
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
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1279 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1280 ft_text_renderer::render (text_element *elt, Matrix& box, int rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1281 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1282 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1283 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1284 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1285 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1286
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1287 set_mode (MODE_RENDER);
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 if (pixels.numel () > 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1290 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1291 elt->accept (*this);
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1292
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1293 switch (rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1294 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1295 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1296 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1297
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1298 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1299 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1300 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1301 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1302 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1303 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1304 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1305
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1306 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1307 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1308 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1309 idx(2) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1310 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1311 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1312 break;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1313
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1314 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1315 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1316 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1317 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1318 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1319 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1320 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1321 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1322 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1323
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1324 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1325 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1326 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1327 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1328 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1329 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1330 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1332 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1333 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1334 idx(1) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1335 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1336 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1337 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1338 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1339 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1340 }
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1341
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1342 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1343 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1344
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1345 // Note:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1346 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1347 // y-extent is overly large because it is measured from baseline-to-baseline.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1348 // Calling routines, such as ylabel, may need to account for this mismatch.
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1349
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1350 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1351 ft_text_renderer::get_extent (text_element *elt, double rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1352 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1353 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1354 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1355 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1356
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1357 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1358
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1359 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1360 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1361 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1362 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1363 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1364 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1365 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1366
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1367 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1368 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1369 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1370 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1371 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1372
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1373 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1374 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1375
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1376 Matrix
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1377 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
1378 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1379 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1380 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
1381 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1382 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1383
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1384 return extent;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1385 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1386
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1387 int
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1388 ft_text_renderer::rotation_to_mode (double rotation) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1389 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1390 // Clip rotation to range [0, 360]
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1391 while (rotation < 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1392 rotation += 360.0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1393 while (rotation > 360.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1394 rotation -= 360.0;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1395
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1396 if (rotation == 0.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1397 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1398 else if (rotation == 90.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1399 return ROTATION_90;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1400 else if (rotation == 180.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1401 return ROTATION_180;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1402 else if (rotation == 270.0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1403 return ROTATION_270;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1404 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1405 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1406 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1407
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1408 void
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1409 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
1410 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1411 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1412 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1413 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1414 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1415 int rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1416
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1417 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1418
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1419 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
1420 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1421 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1422
23577
80c42f4cca13 maint: Deprecate is_empty and replace with isempty.
Rik <rik@octave.org>
parents: 23462
diff changeset
1423 if (pxls.isempty ())
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1424 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1425
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1426 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1427 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1428 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1429 box(0) = -box(2)/2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1430 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1431
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1432 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1433 box(0) = -box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1434 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1435
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1436 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1437 box(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1438 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1439 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1440
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1441 switch (valign)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1442 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1443 case 1:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1444 box(1) = -box(3)/2;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1445 break;
9403
4af6e29449c1 [mq]: graphics_text_engine
Michael Goffioul <michael.goffioul@gmail.com>
parents:
diff changeset
1446
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1447 case 2:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1448 box(1) = -box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1449 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1450
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1451 case 3:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1452 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1453
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1454 case 4:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1455 box(1) = -box(3)-box(1);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1456 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1457
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1458 default:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1459 box(1) = 0;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1460 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1461 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1462
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1463 if (handle_rotation)
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1464 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1465 switch (rot_mode)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1466 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1467 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1468 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1469 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1470 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1471 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1472
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1473 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1474 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1475 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1476 break;
17271
cb7233cfbf43 Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17270
diff changeset
1477
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1478 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1479 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1480 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1481 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1482 break;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1483 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1484 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1485 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1486
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1487 ft_text_renderer::ft_font::ft_font (const ft_font& ft)
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
1488 : text_renderer::font (ft), face (nullptr)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1489 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1490 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1491 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1492
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1493 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1494 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1495 #endif
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1496 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1497
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1498 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1499 ft_text_renderer::ft_font::operator = (const ft_font& ft)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1500 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1501 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1502 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1503 text_renderer::font::operator = (ft);
17271
cb7233cfbf43 Prepare base text rendering code for full TeX support.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17270
diff changeset
1504
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1505 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1506 {
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1507 FT_Done_Face (face);
23795
980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents: 23696
diff changeset
1508 face = nullptr;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
1509 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1510
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1511 #if defined (HAVE_FT_REFERENCE_FACE)
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1512 FT_Face ft_face = ft.get_face ();
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1513
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1514 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1515 face = ft_face;
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1516 #endif
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1517 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1518
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1519 return *this;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1520 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1521
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1522 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1523 ft_text_renderer::ft_font::get_face (void) const
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1524 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1525 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1526 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1527 face = ft_manager::get_font (name, weight, angle, size);
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1528
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1529 if (face)
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1530 {
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1531 if (FT_Set_Char_Size (face, 0, size*64, 0, 0))
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1532 ::warning ("ft_text_renderer: unable to set font size to %g", size);
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1533 }
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1534 else
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1535 ::warning ("ft_text_renderer: unable to load appropriate font");
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1536 }
17330
219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823).
Michael Goffioul <michael.goffioul@gmail.com>
parents: 17327
diff changeset
1537
22331
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1538 return face;
b81b08cc4c83 maint: Indent namespaces in more files.
John W. Eaton <jwe@octave.org>
parents: 22326
diff changeset
1539 }
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1540 }
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1541
20945
9d9270e2f98f eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents: 20715
diff changeset
1542 #endif
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1543
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1544 namespace octave
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1545 {
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1546 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1547 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1548 {
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1549 #if defined (HAVE_FREETYPE)
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1550 return new ft_text_renderer ();
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1551 #else
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1552 return 0;
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1553 #endif
22326
71dd9d5a5ecd move more new classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
1554 }
21209
67d2965af0b5 revamp text rendering classes
John W. Eaton <jwe@octave.org>
parents: 21200
diff changeset
1555 }