octave: libinterp/corefcn/ft-text-renderer.cc annotate

annotate libinterp/corefcn/ft-text-renderer.cc @ 29678:7511182e5e9b

Allow for automatic font substitution in graphics text rendering * ft-text-renderer.cc (ft_manager::get_font) New optionnal argument to look for a specific character code point. (ft_manager::get_font): Dito. If code point is provided add it in the search patern before subtitution. (ft_text_renderer::process_character): Try to draw with a fallback font when failing to load a specific code point in the orignal font. * uisetfont.m: Disable new warning Octave:substituted-glyph.

author	Pantxo Diribarne <pantxo.diribarne@gmail.com>
date	Sun, 16 May 2021 13:17:20 +0200
parents	32f4357ac8d9
children	7ad7991e946a

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
29358 0a5b15007766 update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 28483 diff changeset	3 // Copyright (C) 2009-2021 The Octave Project Developers
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21568 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21209 diff changeset	27 # include "config.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	28 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	29
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	30 #include "base-text-renderer.h"
23462 314d980bee93 maint: Add '#include "XXX.h"' to XXX.cc files. Rik <rik@octave.org> parents: 23457 diff changeset	31 #include "ft-text-renderer.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	32
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	33 #if defined (HAVE_FREETYPE)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	34
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	35 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24126 diff changeset	36 # pragma GCC diagnostic push
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24126 diff changeset	37 # pragma GCC diagnostic ignored "-Wold-style-cast"
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	38 #endif
36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	39
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	40 #include <ft2build.h>
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	41 #include FT_FREETYPE_H
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	42 #include FT_GLYPH_H
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	43
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	44 #if defined (HAVE_FONTCONFIG)
21200 fcac5dbbf9ed maint: Indent #ifdef blocks in libinterp. Rik <rik@octave.org> parents: 21102 diff changeset	45 # include <fontconfig/fontconfig.h>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	46 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	47
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	48 #if defined (HAVE_PRAGMA_GCC_DIAGNOSTIC)
24444 53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24126 diff changeset	49 # pragma GCC diagnostic pop
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	50 #endif
36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	51
17352 4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	52 #include <clocale>
4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	53 #include <cwchar>
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	54 #include <map>
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	55 #include <utility>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	56
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	57 #include "singleton-cleanup.h"
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	58 #include "unistr-wrappers.h"
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	59
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	60 #include "defaults.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	61 #include "error.h"
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	62 #include "file-ops.h"
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	63 #include "oct-env.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	64 #include "pr-output.h"
29489 ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows. Markus Mützel <markus.muetzel@gmx.de> parents: 29470 diff changeset	65 #include "sysdep.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	66 #include "text-renderer.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	67
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	68 namespace octave
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	69 {
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	70 // FIXME: maybe issue at most one warning per glyph/font/size/weight
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	71 // combination.
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	72
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	73 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	74 warn_missing_glyph (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	75 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	76 warning_with_id ("Octave:missing-glyph",
26152 b68c41cb0f99 Silence compiler warning about incorrect format specifier (bug #55046). Markus Mützel <markus.muetzel@gmx.de> parents: 25460 diff changeset	77 "text_renderer: skipping missing glyph for character '%lx'", c);
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	78 }
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	79
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	80 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	81 warn_glyph_render (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	82 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	83 warning_with_id ("Octave:glyph-render",
26152 b68c41cb0f99 Silence compiler warning about incorrect format specifier (bug #55046). Markus Mützel <markus.muetzel@gmx.de> parents: 25460 diff changeset	84 "text_renderer: unable to render glyph for character '%lx'", c);
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	85 }
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	86
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	87 #if defined (_MSC_VER)
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	88 // FIXME: is this really needed?
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	89 //
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	90 // This is just a trick to avoid multiple symbol definitions.
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	91 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	92 // that will cause MSVC not to generate a new instantiation and
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	93 // use the imported one instead.
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	94 # include "PermMatrix.h"
13730 a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	95 #endif
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	96
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	97 // Forward declaration
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	98 static void ft_face_destroyed (void *object);
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	99
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	100 class
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	101 ft_manager
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	102 {
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	103 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	104
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	105 ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	106 : library (), freetype_initialized (false), fontconfig_initialized (false)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	107 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	108 if (FT_Init_FreeType (&library))
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	109 error ("unable to initialize FreeType library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	110 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	111 freetype_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	112
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	113 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	114 if (! FcInit ())
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	115 error ("unable to initialize fontconfig library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	116 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	117 fontconfig_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	118 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	119 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	120
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	121 public:
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	122
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	123 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	124
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	125 ft_manager (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	126
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	127 ft_manager& operator = (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	128
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	129 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	130
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	131 ~ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	132 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	133 if (freetype_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	134 FT_Done_FreeType (library);
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	135
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	136 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	137 // FIXME: Skip the call to FcFini because it can trigger the assertion
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	138 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	139 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	140 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	141 // if (fontconfig_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	142 // FcFini ();
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	143 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	144 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	145
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	146 public:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	147
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	148 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	149 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	150 bool retval = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	151
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	152 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	153 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	154 instance = new ft_manager ();
26369 0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347). Andreas Weber <octave@josoansi.de> parents: 26340 diff changeset	155 singleton_cleanup_list::add (cleanup_instance);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	156 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	157
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	158 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	159 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	160
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	161 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	162
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	163 static FT_Face get_font (const std::string& name, const std::string& weight,
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	164 const std::string& angle, double size,
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	165 FT_ULong c = 0)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	166 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	167 return (instance_ok ()
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	168 ? instance->do_get_font (name, weight, angle, size, c)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	169 : nullptr);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	170 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	171
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	172 static octave_map get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	173 {
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	174 return (instance_ok ()
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	175 ? instance->do_get_system_fonts ()
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	176 : octave_map ());
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	177 }
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	178
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	179 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	180 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	181 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	182 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	183 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	184
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	185 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	186
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	187 static ft_manager *instance;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	188
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	189 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	190 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	191
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	192 // 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	193 // 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	194 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	195 ft_cache cache;
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	196
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	197 static octave_map do_get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	198 {
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	199 static octave_map font_map;
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 if (font_map.isempty ())
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	202 {
28483 98889de398dd * ft-text-renderer.cc: Allow build to succeed if HAVE_FONTCONFIG is undefined. John W. Eaton <jwe@octave.org> parents: 28305 diff changeset	203 #if defined (HAVE_FONTCONFIG)
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	204 FcConfig *config = FcConfigGetCurrent();
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	205 FcPattern *pat = FcPatternCreate ();
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	206 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	207 FC_CHARSET, nullptr);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	208 FcFontSet *fs = FcFontList (config, pat, os);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	209
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	210 if (fs->nfont > 0)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	211 {
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	212 // 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	213 FcCharSet *minimal_charset = FcCharSetCreate ();
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	214 for (int i = 32; i < 127; i++)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	215 FcCharSetAddChar (minimal_charset, static_cast<FcChar32> (i));
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	216
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	217 string_vector fields (4);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	218 fields(0) = "family";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	219 fields(1) = "angle";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	220 fields(2) = "weight";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	221 fields(3) = "suitable";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	222
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	223 dim_vector dv (1, fs->nfont);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	224 Cell families (dv);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	225 Cell angles (dv);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	226 Cell weights (dv);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	227 Cell suitable (dv);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	228
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	229 unsigned char *family;
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	230 int val;
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	231 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	232 {
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	233 FcPattern *font = fs->fonts[i];
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	234 if (FcPatternGetString (font, FC_FAMILY, 0, &family)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	235 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	236 families(i) = std::string (reinterpret_cast<char*> (family));
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	237 else
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	238 families(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	239
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	240 if (FcPatternGetInteger (font, FC_SLANT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	241 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	242 angles(i) = (val == FC_SLANT_ITALIC
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	243 \|\| val == FC_SLANT_OBLIQUE)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	244 ? "italic" : "normal";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	245 else
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	246 angles(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	247
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	248 if (FcPatternGetInteger (font, FC_WEIGHT, 0, &val)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	249 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	250 weights(i) = (val == FC_WEIGHT_BOLD
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	251 \|\| val == FC_WEIGHT_DEMIBOLD)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	252 ? "bold" : "normal";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	253 else
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	254 weights(i) = "unknown";
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	255
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	256 FcCharSet *cset;
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	257 if (FcPatternGetCharSet (font, FC_CHARSET, 0, &cset)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	258 == FcResultMatch)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	259 suitable(i) = (FcCharSetIsSubset (minimal_charset, cset)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	260 ? true : false);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	261 else
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	262 suitable(i) = false;
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
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	265 font_map = octave_map (dv, fields);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	266
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	267 font_map.assign ("family", families);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	268 font_map.assign ("angle", angles);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	269 font_map.assign ("weight", weights);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	270 font_map.assign ("suitable", suitable);
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 if (fs)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	273 FcFontSetDestroy (fs);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	274 }
28483 98889de398dd * ft-text-renderer.cc: Allow build to succeed if HAVE_FONTCONFIG is undefined. John W. Eaton <jwe@octave.org> parents: 28305 diff changeset	275 #endif
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	276 }
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	277
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	278 return font_map;
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	279 }
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	280
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	281 FT_Face do_get_font (const std::string& name, const std::string& weight,
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	282 const std::string& angle, double size,
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	283 FT_ULong search_code_point)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	284 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	285 FT_Face retval = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	286
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	287 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	288 // Look first into the font cache, then use fontconfig. If the font
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	289 // is present in the cache, simply add a reference and return it.
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	290
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	291 ft_key key (name + ':' + weight + ':' + angle + ':'
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	292 + std::to_string (search_code_point), size);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	293 ft_cache::const_iterator it = cache.find (key);
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	294
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	295 if (it != cache.end ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	296 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	297 FT_Reference_Face (it->second);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	298 return it->second;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	299 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	300 #endif
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	301
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	302 static std::string fonts_dir;
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	303
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	304 if (fonts_dir.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	305 {
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	306 fonts_dir = sys::env::getenv ("OCTAVE_FONTS_DIR");
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	307
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	308 if (fonts_dir.empty ())
24900 00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348) Mike Miller <mtmiller@octave.org> parents: 24899 diff changeset	309 #if defined (SYSTEM_FREEFONT_DIR)
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	310 fonts_dir = SYSTEM_FREEFONT_DIR;
24900 00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348) Mike Miller <mtmiller@octave.org> parents: 24899 diff changeset	311 #else
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	312 fonts_dir = config::oct_fonts_dir ();
24900 00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348) Mike Miller <mtmiller@octave.org> parents: 24899 diff changeset	313 #endif
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	314 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	315
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	316
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	317 // Default font file
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	318 std::string file;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	319
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	320 if (! fonts_dir.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	321 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	322 file = fonts_dir + sys::file_ops::dir_sep_str () + "FreeSans";
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	323
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	324 if (weight == "bold")
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	325 file += "Bold";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	326
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	327 if (angle == "italic" \|\| angle == "oblique")
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	328 file += "Oblique";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	329
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	330 file += ".otf";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	331 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	332
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	333 #if defined (HAVE_FONTCONFIG)
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	334 if ((search_code_point != 0 \|\| name != "*") && fontconfig_initialized)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	335 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	336 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	337
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	338 if (weight == "bold")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	339 fc_weight = FC_WEIGHT_BOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	340 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	341 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	342
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	343 if (angle == "italic")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	344 fc_angle = FC_SLANT_ITALIC;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	345 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	346 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	347 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	348 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	349
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	350 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	351
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	352 FcPatternAddString (pat, FC_FAMILY,
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	353 (reinterpret_cast<const FcChar8 *>
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	354 (name.c_str ())));
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	355
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	356 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	357 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	358 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	359
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	360 if (search_code_point > 0)
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	361 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	362 FcCharSet *minimal_charset = FcCharSetCreate ();
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	363 FcCharSetAddChar (minimal_charset,
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	364 static_cast<FcChar32> (search_code_point));
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	365 FcPatternAddCharSet (pat, FC_CHARSET, minimal_charset);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	366 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	367
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	368 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	369 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	370 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	371 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	372
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	373 FcDefaultSubstitute (pat);
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	374
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	375 match = FcFontMatch (nullptr, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	376
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	377 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	378 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	379 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	380 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	381 unsigned char *tmp;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	382
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	383 FcPatternGetString (match, FC_FILE, 0, &tmp);
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	384 file = reinterpret_cast<char *> (tmp);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	385 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	386 else
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	387 ::warning ("could not match any font: %s-%s-%s-%g, using default font",
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	388 name.c_str (), weight.c_str (), angle.c_str (),
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	389 size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	390
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	391 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	392 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	393 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	394
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	395 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	396 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	397 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	398
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	399 if (file.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	400 ::warning ("unable to find default font files");
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	401 else
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	402 {
29489 ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows. Markus Mützel <markus.muetzel@gmx.de> parents: 29470 diff changeset	403 std::string ascii_file = sys::get_ASCII_filename (file);
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	404
29489 ee66869c30d6 Fix loading fonts from path with non-ASCII characters on Windows. Markus Mützel <markus.muetzel@gmx.de> parents: 29470 diff changeset	405 if (FT_New_Face (library, ascii_file.c_str (), 0, &retval))
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	406 ::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	407 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	408 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	409 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	410 // Install a finalizer to notify ft_manager that the font is
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	411 // being destroyed. The class ft_manager only keeps weak
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	412 // 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	413
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	414 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	415 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	416
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	417 // Insert loaded font into the cache.
28206 11d66485fc19 Correctly cache fonts in ft_manager (bug #58150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27923 diff changeset	418 if (FT_Reference_Face (retval) == 0)
11d66485fc19 Correctly cache fonts in ft_manager (bug #58150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27923 diff changeset	419 cache[key] = retval;
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	420 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	421 #endif
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	422 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	423
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	424 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	425 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	426
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	427 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	428 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	429 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	430 {
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	431 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	432
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	433 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	434 delete pkey;
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	435 face->generic.data = nullptr;
28206 11d66485fc19 Correctly cache fonts in ft_manager (bug #58150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27923 diff changeset	436 FT_Done_Face (face);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	437 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	438 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	439
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	440 private:
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	441 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	442 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	443 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	444 };
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	445
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23447 diff changeset	446 ft_manager *ft_manager::instance = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	447
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	448 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	449 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	450 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	451 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	452 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	453
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	454 class
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	455 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	456 ft_text_renderer : public base_text_renderer
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	457 {
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	458 public:
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	459
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	460 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	461 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	462 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	463 MODE_RENDER = 1
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	464 };
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	465
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	466 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	467
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	468 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	469 : 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	470 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	471 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	472 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	473 m_max_fontsize (0), m_antialias (true)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	474 { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	475
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	476 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	477
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	478 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	479
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	480 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	481
22868 87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors John W. Eaton <jwe@octave.org> parents: 22865 diff changeset	482 ~ft_text_renderer (void) = default;
22331 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_string& 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_list& 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_subscript& 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_superscript& e);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	491
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	492 void visit (text_element_color& 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 visit (text_element_fontsize& e);
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 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	497
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	498 void visit (text_element_fontstyle& e);
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 void visit (text_element_symbol& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	501
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	502 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	503
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	504 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	505
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	506 uint8NDArray get_pixels (void) const { return pixels; }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	507
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	508 Matrix get_boundingbox (void) const { return bbox; }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	509
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	510 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	511 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	512
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	513 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	514 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	515 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	516
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	517 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	518
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	519 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	520 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	521
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	522 octave_map get_system_fonts (void);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	523
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	524 void set_color (const Matrix& c);
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 void set_mode (int m);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	527
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	528 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	529 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	530 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	531 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	532 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	533
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	534 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	535
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	536 // 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	537 // 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	538
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	539 class ft_font : public text_renderer::font
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	540 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	541 public:
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 (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	544 : text_renderer::font (), face (nullptr) { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	545
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	546 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	547 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	548 : 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	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 (const ft_font& ft);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	552
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	553 ~ft_font (void)
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 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	556 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	557 }
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> parents: 22326 diff changeset	559 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	560
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	561 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	562
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	563 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	564
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	565 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	566
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	567 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	568 };
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> parents: 22326 diff changeset	570 void push_new_line (void);
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 void update_line_bbox (void);
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 compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	575
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	576 int compute_line_xoffset (const Matrix& lb) const;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	577
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	578 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	579
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	580 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	581
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	582 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	583 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	584 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	585 const caseless_str& interp);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	586
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	587 private:
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	588
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	589 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	590 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	591
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	592 // 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	593 // 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	594 // 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	595 // 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	596 // 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	597 Matrix 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 // 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	600 // 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	601 uint8NDArray pixels;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	602
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	603 // 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	604 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	605 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	606
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	607 // 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	608 int halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	609
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	610 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	611 int xoffset;
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 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	614 int line_yoffset;
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 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	617 // 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	618 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	619 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	620
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	621 // 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	622 int mode;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	623
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	624 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	625 uint8NDArray color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	626
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	627 // 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	628 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	629 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	630
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	631 // 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	632 int line_xoffset;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	633
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	634 // 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	635 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	636 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	637
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	638 // 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	639 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	640
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	641 // 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	642 double m_max_fontsize;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	643
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	644 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	645 bool m_antialias;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	646
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	647 };
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	648
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	649 void
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	650 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	651 const std::string& weight,
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	652 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	653 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	654 // FIXME: take "fontunits" into account
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	655 font = ft_font (name, weight, angle, size, nullptr);
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	656 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	657
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	658 octave_map
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	659 ft_text_renderer::get_system_fonts (void)
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	660 {
698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	661 return ft_manager::get_system_fonts ();
22331 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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	664 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	665 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	666 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	667 switch (mode)
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 case MODE_BBOX:
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 // 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	672
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	673 FT_Face face = font.get_face ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	674
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	675 if (face)
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 Matrix bb (1, 5, 0.0);
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 line_bbox.push_back (bb);
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 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	682 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	683 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	684 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	685 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	686
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	687 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	688 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	689 // 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	690 // 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	691
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	692 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	693 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	694 Matrix new_bbox = line_bbox.front ();
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 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	697 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	698 + (new_bbox(3) + new_bbox(1)));
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	699 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	700 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	701 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	702 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	703 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	704 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	705
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	706 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	707 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	708 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	709 if (! bbox.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	710 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	711 switch (halign)
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 case 0:
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 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	716 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	717 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	718 return (bbox(2) - lb(2));
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	721
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	722 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	723 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	726 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	727 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	728 // 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	729 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	730
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	731 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	732
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	733 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	734 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	735 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	736 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	737
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	738 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	739 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	740 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	741
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	742 default:
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	743 for (const auto& lbox : line_bbox)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	744 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	745 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	746 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	747 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	748 {
26221 76ac35f71573 Fix regression in multi-line text rendering (bug #55218) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26187 diff changeset	749 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	750 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	751 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	752 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	753 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	754 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	755 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	756 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	757 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	758
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	759 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	760 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	761 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	762 // 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	763 // 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	764 // 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	765 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	766
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	767 if (mode == MODE_BBOX)
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 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	770 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	771 // 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	772 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26221 diff changeset	773 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	774 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	775 bb(2) += m_deltax;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	776 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	777 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	778
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	779 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	780 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	781 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	782 mode = m;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	783
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	784 switch (mode)
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_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	787 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	788 m_max_fontsize = 0.0;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	789 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	790 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	791 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	792 break;
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 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	795 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	796 {
22515 77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102). Rik <rik@octave.org> parents: 22407 diff changeset	797 ::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	798
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	799 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	800 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	801 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	802 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	803 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	804 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	805 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	806 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	807 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	808 line_yoffset = -bbox(1);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	809 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	810 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	811 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	812
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	813 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	814 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	815 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	816 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	817 }
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	818 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	819 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	820 // 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	821 // 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	822 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	823 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	824 char cvalue = row[x >> 3];
26995 ab5bfee22d18 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26858 diff changeset	825
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	826 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	827 }
22331 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 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	830 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	831 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	832 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	833 FT_UInt glyph_index = 0;
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 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	836 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	837 glyph_index = FT_Get_Char_Index (face, code);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	838
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	839 if (code != '\n' && code != '\t'
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	840 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	841 \|\| 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	842 {
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	843 #if defined (HAVE_FONTCONFIG)
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	844 // Try to substitue font
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	845 FT_Face sub_face = ft_manager::get_font (font.get_name (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	846 font.get_weight (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	847 font.get_angle (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	848 font.get_size (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	849 code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	850
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	851 if (sub_face)
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	852 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	853 FT_Set_Char_Size (sub_face, 0, font.get_size ()*64, 0, 0);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	854
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	855 glyph_index = FT_Get_Char_Index (sub_face, code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	856
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	857 if (glyph_index
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	858 && (FT_Load_Glyph (sub_face, glyph_index, FT_LOAD_DEFAULT)
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	859 == 0))
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	860 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	861 static std::string sub_name;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	862
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	863 if (sub_name.empty ()
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	864 \|\| sub_name != std::string (sub_face->family_name))
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	865 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	866 sub_name = sub_face->family_name;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	867 warning_with_id ("Octave:substituted-glyph",
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	868 "text_renderer: substituting font to '%s' for some characters",
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	869 sub_face->family_name);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	870 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	871
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	872 // FIXME: With this approach the substituted font is
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	873 // not stored in the str_list and thus won't appear in
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	874 // svg output.
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	875 ft_font saved_font = font;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	876
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	877 font = ft_font (font.get_name (), font.get_weight (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	878 font.get_angle (), font.get_size (),
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	879 sub_face);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	880
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	881 process_character (code, previous);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	882
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	883 font = saved_font;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	884 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	885 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	886 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	887 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	888 warn_missing_glyph (code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	889 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	890 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	891 else
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	892 {
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	893 glyph_index = 0;
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	894 warn_missing_glyph (code);
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	895 }
7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	896 #else
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	897 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	898 warn_missing_glyph (code);
29678 7511182e5e9b Allow for automatic font substitution in graphics text rendering Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29655 diff changeset	899 #endif
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	900 }
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	901 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	902 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	903 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	904 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	905 \|\| 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	906 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	907 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	908 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	909 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	910 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	911 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	912 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	913 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	914 // 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	915 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	916 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	917 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	918 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	919 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	920 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	921 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	922 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	923 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	924 case MODE_RENDER:
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	925 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	926 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	927 : FT_RENDER_MODE_MONO)))
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	928 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	929 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	930 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	931 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	932 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	933 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	934 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	935 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	936
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	937 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	938 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	939 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	940
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	941 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	942 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	943 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	944 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	945
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	946 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	947 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	948
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	949 // '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	950 // 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	951 // 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	952 // horizontal space in the bbox.
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	953 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	954 x0 = 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	955
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	956 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	957 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	958 {
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	959 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	960 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	961 ? 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	962 : (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	963
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	964 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	965 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	966 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	967 // ::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	968 // x0+c, y0-r);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	969 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	970 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	971 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	972 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	973 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	974 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	975 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	976 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	977 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	978
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	979 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	980 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	981 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	982
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	983 case MODE_BBOX:
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	984 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	985
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	986 // 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	987 // 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	988 // 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	989 if (previous)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	990 {
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	991 FT_Vector delta;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	992
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	993 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	994 FT_KERNING_DEFAULT, &delta);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	995
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	996 xoffset += (delta.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	997 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	998
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	999 // 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	1000 // 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	1001
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	1002 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	1003 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	1004
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1005 // 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	1006 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	1007 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	1008 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	1009 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1010 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1011 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	1012 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	1013 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1014 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	1015 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	1016 m_ymin);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1017 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	1018 m_ymax);
26478 6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26376 diff changeset	1019 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	1020 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	1021 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1022 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1023 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1024 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1025 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1026
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1027 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1028 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1029
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1030 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1031 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	1032 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1033 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1034 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1035 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1036 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1037 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1038
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1039 // 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	1040
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1041 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	1042
28857 43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28823 diff changeset	1043 unwind_protect_var<bool> restore_var1 (m_do_strlist);
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28823 diff changeset	1044 unwind_protect_var<std::list<text_renderer::string>>
28823 26cfccfee9a0 Replace unwind_protect with more efficient constructs (bug #59192). Rik <rik@octave.org> parents: 28483 diff changeset	1045 restore_var2 (m_strlist);
28857 43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28823 diff changeset	1046
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1047 m_do_strlist = true;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	1048
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1049 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	1050
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1051 lst = m_strlist;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1052 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1053
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1054 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1055 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	1056 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1057 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1058 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1059 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	1060 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1061
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1062 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	1063 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	1064 uint32_t u32_c;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	1065
29654 d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471) John W. Eaton <jwe@octave.org> parents: 29358 diff changeset	1066 std::size_t n = str.size ();
d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471) John W. Eaton <jwe@octave.org> parents: 29358 diff changeset	1067 std::size_t icurr = 0;
d13d090cb03a use std::size_t and std::ptrdiff_t in C++ code (bug #60471) John W. Eaton <jwe@octave.org> parents: 29358 diff changeset	1068 std::size_t ibegin = 0;
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1069
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1070 // Initialize a new string
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1071 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	1072 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	1073 std::vector<double> xdata;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1074
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1075 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1076 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1077 // 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	1078 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1079 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	1080 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	1081 {
8a07083c8cfc Use replacement characters to display non UTF-8 strings in figures (bug #55974) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26617 diff changeset	1082 // 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	1083 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	1084 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	1085 }
27623 698c8b08fe8c New function uisetfont (bug #57130). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 27150 diff changeset	1086
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1087 n -= mblen;
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1088
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1089 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	1090 {
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1091 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	1092 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1093 // 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	1094 // the newline character
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1095 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	1096 fs.set_color (color);
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	1097
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1098 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	1099 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1100 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1101 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	1102 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	1103 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	1104 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	1105 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	1106 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1107 }
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1108 else
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1109 xdata.push_back (xoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1110 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	1111
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1112 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	1113
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1114 if (u32_c == 10)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1115 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	1116 previous = 0;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	1117
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1118 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1119 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1120 // 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	1121 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1122 xdata.clear ();
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1123 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	1124 line_xoffset, yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1125 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1126 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	1127 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	1128 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	1129
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	1130 icurr += mblen;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1131 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1132
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1133 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	1134 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1135 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1136 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1137 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1138 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	1139 m_strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1140 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1141 }
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1144 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1145 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	1146 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1147 // 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	1148
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1149 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1150 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1151
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1152 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1153
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1154 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1155 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1156 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1157
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1158 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1159 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	1160 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1161 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1162 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1163 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1164
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1165 double sz = font.get_size ();
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1166
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1167 // Reducing font size by 70% produces decent results.
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1168 set_font (font.get_name (), font.get_weight (), font.get_angle (),
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1169 std::max (5.0, sz * 0.7));
22331 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 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1172 {
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1173 // Shifting the baseline by 15% of the font size gives decent results.
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1174 yoffset -= std::ceil (sz * 0.15);
22331 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 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1177 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1178 }
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1181
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1182 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1183 // 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	1184 // 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	1185 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1186 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1187 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1188
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1189 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1190 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	1191 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1192 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1193 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1194 int saved_yoffset = yoffset;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1195
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1196 double sz = font.get_size ();
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1197
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1198 // Reducing font size by 70% produces decent results.
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1199 set_font (font.get_name (), font.get_weight (), font.get_angle (),
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1200 std::max (5.0, sz * 0.7));
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1201
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1202 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1203 {
28305 6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1204 // Shifting the baseline by 40% of the font size gives decent results.
6e8d5c99263c Produce better looking TeX superscript and subscripts (bug #58376). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 28206 diff changeset	1205 yoffset += std::ceil (sz * 0.4);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1206
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1207 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1208 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1209 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1210
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1211 text_processor::visit (e);
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 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1214 // 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	1215 // 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	1216 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1217 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1218 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1219
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1220 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1221 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	1222 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1223 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1224 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1225 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1226
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1227 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1228 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	1229 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1230 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1231
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1232 // 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	1233 // in the text object FontUnit.
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 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	1236
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1237 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1238 update_line_bbox ();
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1242 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	1243 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1244 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	1245 font.get_size ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1246
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1247 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1248 update_line_bbox ();
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1251 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1252 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	1253 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1254 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1255 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1256 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1257 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	1258 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1259
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1260 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1261 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	1262 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1263
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1264 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1265 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	1266 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1267
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1268 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1269 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	1270 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1271 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1272
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1273 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1274 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1275 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1276
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1277 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1278 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	1279 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1280 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1281
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1282 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	1283 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	1284
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1285 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	1286 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1287 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	1288 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	1289 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1290 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	1291 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	1292 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1293 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1294 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1295 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1296
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1297 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	1298 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1299 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1300 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1301 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	1302 m_strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1303 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1304 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1307 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	1308 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1309 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1310 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1311
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	1312 for (auto *txt_elt : e)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1313 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1314 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	1315 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	1316 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	1317 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1318
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1319 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1320 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1321
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1322 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1323 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1324 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1325 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1326 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	1327 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	1328 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1329
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1330 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1331 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	1332 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1333 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1334 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1335 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	1336 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	1337 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	1338 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1339 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1340 ::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	1341 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1342
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1343 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1344 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	1345 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1346 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1347 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1348 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1349 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1350
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1351 set_mode (MODE_RENDER);
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 if (pixels.numel () > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1354 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1355 elt->accept (*this);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1356
29470 2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29359 diff changeset	1357 rotate_pixels (pixels, rotation);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1358 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1359
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1360 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1361 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1362
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1363 // Note:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1364 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1365 // 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	1366 // 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	1367
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1368 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1369 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	1370 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1371 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1372 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1373 compute_bbox ();
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 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1376
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1377 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1378 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1379 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1380 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1381 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1382 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1383 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1384
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1385 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1386 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1387 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1388 extent(1) = bbox(2);
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1391 return extent;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1392 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1393
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1394 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1395 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	1396 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1397 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1398 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	1399 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1400 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1401
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1402 return extent;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1403 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1404
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1405 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1406 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	1407 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1408 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1409 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1410 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1411 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1412 int rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1413
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1414 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1415
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1416 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	1417 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1418 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1419
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	1420 if (pxls.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1421 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1422
29470 2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29359 diff changeset	1423 // Move X0 and Y0 depending on alignments and eventually swap all values
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29359 diff changeset	1424 // for text rotated 90° 180° or 270°
2ae4764180c6 Initial implementation of a LaTeX interpreter (bug #59546). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 29359 diff changeset	1425 fix_bbox_anchor (box, halign, valign, rot_mode, handle_rotation);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1426 }
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 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	1429 : text_renderer::font (ft), face (nullptr)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1430 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1431 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1432 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1433
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1434 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	1435 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1436 #endif
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1437 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1438
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1439 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1440 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	1441 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1442 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1443 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1444 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	1445
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1446 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1447 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1448 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	1449 face = nullptr;
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1450 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1451
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1452 #if defined (HAVE_FT_REFERENCE_FACE)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1453 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	1454
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1455 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	1456 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	1457 #endif
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1458 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1459
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1460 return *this;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1461 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1462
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1463 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1464 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	1465 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1466 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1467 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1468 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	1469
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1470 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1471 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1472 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	1473 ::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	1474 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1475 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1476 ::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	1477 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1478
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1479 return face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1480 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1481 }
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1482
20945 9d9270e2f98f eliminate comments after preprocessor conditionals John W. Eaton <jwe@octave.org> parents: 20715 diff changeset	1483 #endif
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1484
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1485 namespace octave
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1486 {
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1487 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1488 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1489 {
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1490 #if defined (HAVE_FREETYPE)
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1491 return new ft_text_renderer ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1492 #else
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1493 return 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1494 #endif
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1495 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1496 }

Mercurial > octave

annotate libinterp/corefcn/ft-text-renderer.cc @ 29678:7511182e5e9b