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

annotate libinterp/corefcn/ft-text-renderer.cc @ 26995:ab5bfee22d18

maint: Strip trailing whitespace from source files.

author	John W. Eaton <jwe@octave.org>
date	Wed, 27 Mar 2019 23:32:07 +0000
parents	0adb232f93b9
children	84ff9953faa1

rev	line source
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1 /*
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	2
26376 00f796120a6d maint: Update copyright dates in all source files. John W. Eaton <jwe@octave.org> parents: 26330 diff changeset	3 Copyright (C) 2016-2019 John W. Eaton
00f796120a6d maint: Update copyright dates in all source files. John W. Eaton <jwe@octave.org> parents: 26330 diff changeset	4 Copyright (C) 2009-2019 Michael Goffioul
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	5
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	6 This file is part of Octave.
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	7
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24444 diff changeset	8 Octave is free software: you can redistribute it and/or modify it
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	9 under the terms of the GNU General Public License as published by
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24444 diff changeset	10 the Free Software Foundation, either version 3 of the License, or
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	11 (at your option) any later version.
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	12
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	13 Octave is distributed in the hope that it will be useful, but
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	14 WITHOUT ANY WARRANTY; without even the implied warranty of
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22515 diff changeset	16 GNU General Public License for more details.
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	17
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	18 You should have received a copy of the GNU General Public License
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	19 along with Octave; see the file COPYING. If not, see
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24444 diff changeset	20 <https://www.gnu.org/licenses/>.
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	21
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	22 */
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	23
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21568 diff changeset	24 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21209 diff changeset	25 # include "config.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	26 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	27
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	28 #include "base-text-renderer.h"
23462 314d980bee93 maint: Add '#include "XXX.h"' to XXX.cc files. Rik <rik@octave.org> parents: 23457 diff changeset	29 #include "ft-text-renderer.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	30
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	31 #if defined (HAVE_FREETYPE)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	32
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	33 #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	34 # pragma GCC diagnostic push
53ca76c5cc8d maint: Indent pragmas as other preprocessor directives. John W. Eaton <jwe@octave.org> parents: 24126 diff changeset	35 # 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	36 #endif
36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	37
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	38 #include <ft2build.h>
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	39 #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	40 #include FT_GLYPH_H
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	41
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	42 #if defined (HAVE_FONTCONFIG)
21200 fcac5dbbf9ed maint: Indent #ifdef blocks in libinterp. Rik <rik@octave.org> parents: 21102 diff changeset	43 # include <fontconfig/fontconfig.h>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	44 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	45
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	46 #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	47 # 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	48 #endif
36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	49
17352 4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	50 #include <clocale>
4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	51 #include <cwchar>
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	52 #include <map>
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	53 #include <utility>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	54
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	55 #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	56 #include "unistr-wrappers.h"
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	57
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	58 #include "defaults.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	59 #include "error.h"
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	60 #include "file-ops.h"
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	61 #include "oct-env.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	62 #include "pr-output.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	63 #include "text-renderer.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	64
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	65 namespace octave
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	66 {
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	67 // 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	68 // combination.
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 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	71 warn_missing_glyph (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	72 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	73 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	74 "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	75 }
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	76
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	77 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	78 warn_glyph_render (FT_ULong c)
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 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	81 "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	82 }
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	83
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	84 #if defined (_MSC_VER)
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	85 // FIXME: is this really needed?
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	86 //
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	87 // 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	88 // 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	89 // 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	90 // use the imported one instead.
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	91 # include "PermMatrix.h"
13730 a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	92 #endif
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	93
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	94 // Forward declaration
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	95 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	96
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	97 class
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	98 ft_manager
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	99 {
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	100 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	101
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	102 ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	103 : library (), freetype_initialized (false), fontconfig_initialized (false)
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 if (FT_Init_FreeType (&library))
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	106 error ("unable to initialize FreeType library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	107 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	108 freetype_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	109
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	110 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	111 if (! FcInit ())
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	112 error ("unable to initialize fontconfig library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	113 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	114 fontconfig_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	115 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	116 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	117
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	118 public:
22869 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 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	121
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	122 ft_manager (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	123
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	124 ft_manager& operator = (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	125
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	126 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	127
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	128 ~ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	129 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	130 if (freetype_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	131 FT_Done_FreeType (library);
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 defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	134 // 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	135 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	136 // 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	137 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	138 // if (fontconfig_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	139 // FcFini ();
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	140 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	141 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	142
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	143 public:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	144
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	145 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	146 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	147 bool retval = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	148
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	149 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	150 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	151 instance = new ft_manager ();
26369 0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347). Andreas Weber <octave@josoansi.de> parents: 26340 diff changeset	152 singleton_cleanup_list::add (cleanup_instance);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	153 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	154
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	155 return retval;
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
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	158 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	159
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	160 static FT_Face get_font (const std::string& name, const std::string& weight,
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	161 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	162 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	163 return (instance_ok ()
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	164 ? instance->do_get_font (name, weight, angle, size)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	165 : nullptr);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	166 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	167
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	168 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	169 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	170 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	171 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	172 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	173
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	174 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	175
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	176 static ft_manager *instance;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	177
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	178 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	179 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	180
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	181 // 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	182 // 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	183 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	184 ft_cache cache;
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	185
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	186 FT_Face do_get_font (const std::string& name, const std::string& weight,
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	187 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	188 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	189 FT_Face retval = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	190
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	191 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	192 // 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	193 // 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	194
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23795 diff changeset	195 ft_key key (name + ':' + weight + ':' + angle, size);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	196 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	197
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	198 if (it != cache.end ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	199 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	200 FT_Reference_Face (it->second);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	201 return it->second;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	202 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	203 #endif
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	204
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	205 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	206
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	207 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	208 {
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	209 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	210
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	211 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	212 #if defined (SYSTEM_FREEFONT_DIR)
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	213 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	214 #else
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	215 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	216 #endif
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	217 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	218
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	219
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	220 // Default font file
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	221 std::string file;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	222
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	223 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	224 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	225 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	226
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	227 if (weight == "bold")
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	228 file += "Bold";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	229
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	230 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	231 file += "Oblique";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	232
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	233 file += ".otf";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	234 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	235
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	236 #if defined (HAVE_FONTCONFIG)
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	237 if (name != "*" && fontconfig_initialized)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	238 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	239 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	240
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	241 if (weight == "bold")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	242 fc_weight = FC_WEIGHT_BOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	243 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	244 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	245
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	246 if (angle == "italic")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	247 fc_angle = FC_SLANT_ITALIC;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	248 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	249 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	250 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	251 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	252
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	253 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	254
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	255 FcPatternAddString (pat, FC_FAMILY,
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	256 (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	257 (name.c_str ())));
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	258
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	259 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	260 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	261 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	262
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	263 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	264 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	265 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	266 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	267
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	268 FcDefaultSubstitute (pat);
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	269 match = FcFontMatch (nullptr, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	270
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	271 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	272 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	273 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	274 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	275 unsigned char *tmp;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	276
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	277 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	278 file = reinterpret_cast<char *> (tmp);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	279 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	280 else
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	281 ::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	282 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	283 size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	284
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	285 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	286 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	287 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	288
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	289 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	290 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	291 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	292
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	293 if (file.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	294 ::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	295 else
22407 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 if (FT_New_Face (library, file.c_str (), 0, &retval))
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	298 ::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	299 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	300 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	301 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	302 // 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	303 // 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	304 // 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	305
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	306 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	307 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	308
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	309 // Insert loaded font into the cache.
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	310
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	311 cache[key] = retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	312 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	313 #endif
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	314 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	315
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	316 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	317 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	318
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	319 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	320 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	321 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	322 {
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	323 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	324
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	325 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	326 delete pkey;
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	327 face->generic.data = nullptr;
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	328 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	329 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	330
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	331 private:
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	332 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	333 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	334 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	335 };
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	336
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23447 diff changeset	337 ft_manager *ft_manager::instance = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	338
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	339 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	340 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	341 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	342 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	343 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	344
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	345 class
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	346 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	347 ft_text_renderer : public base_text_renderer
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	348 {
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	349 public:
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	350
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	351 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	352 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	353 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	354 MODE_RENDER = 1
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	355 };
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	356
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	357 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	358 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	359 ROTATION_0 = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	360 ROTATION_90 = 1,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	361 ROTATION_180 = 2,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	362 ROTATION_270 = 3
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	363 };
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	364
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	365 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	366
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	367 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	368 : 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	369 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	370 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	371 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	372 m_max_fontsize (0), m_antialias (true)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	373 { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	374
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	375 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	376
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	377 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	378
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	379 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	380
22868 87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors John W. Eaton <jwe@octave.org> parents: 22865 diff changeset	381 ~ft_text_renderer (void) = default;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	382
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	383 void visit (text_element_string& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	384
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	385 void visit (text_element_list& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	386
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	387 void visit (text_element_subscript& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	388
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	389 void visit (text_element_superscript& e);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	390
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	391 void visit (text_element_color& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	392
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	393 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	394
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	395 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	396
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	397 void visit (text_element_fontstyle& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	398
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	399 void visit (text_element_symbol& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	400
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	401 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	402
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	403 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	404
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	405 uint8NDArray get_pixels (void) const { return pixels; }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	406
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	407 Matrix get_boundingbox (void) const { return bbox; }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	408
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	409 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	410 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	411
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	412 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	413 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	414 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	415
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	416 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	417
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	418 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	419 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	420
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	421 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	422
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	423 void set_mode (int m);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	424
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	425 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	426 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	427 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	428 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	429 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	430
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	431 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	432
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	433 int rotation_to_mode (double rotation) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	434
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	435 // 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	436 // 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	437
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	438 class ft_font : public text_renderer::font
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	439 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	440 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	441
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	442 ft_font (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	443 : text_renderer::font (), face (nullptr) { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	444
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	445 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	446 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	447 : 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	448 { }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	449
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	450 ft_font (const ft_font& ft);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	451
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	452 ~ft_font (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	453 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	454 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	455 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	456 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	457
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	458 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	459
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	460 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	461
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	462 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	463
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	464 private:
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 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	467 };
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	468
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	469 void push_new_line (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	470
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	471 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	472
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	473 void compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	474
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	475 int compute_line_xoffset (const Matrix& lb) const;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	476
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	477 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	478
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	479 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	480
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	481 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	482 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	483 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	484 const caseless_str& interp);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	485
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	486 private:
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	487
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	488 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	489 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	490
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	491 // 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	492 // 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	493 // 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	494 // 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	495 // 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	496 Matrix bbox;
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 // 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	499 // 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	500 uint8NDArray pixels;
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 // 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	503 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	504 std::list<Matrix> line_bbox;
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 // 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	507 int halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	508
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	509 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	510 int xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	511
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	512 // 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	513 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	514
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	515 // 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	516 // 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	517 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	518 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	519
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	520 // 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	521 int mode;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	522
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	523 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	524 uint8NDArray color;
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 // 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	527 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	528 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	529
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	530 // 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	531 int line_xoffset;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	532
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	533 // 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	534 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	535 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	536
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	537 // 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	538 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	539
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	540 // 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	541 double m_max_fontsize;
26995 ab5bfee22d18 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26858 diff changeset	542
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	543 // Anti-aliasing.
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	544 bool m_antialias;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	545
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	546 };
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	547
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	548 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	549 ft_text_renderer::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	550 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	551 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	552 // FIXME: take "fontunits" into account
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	553
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	554 font = ft_font (name, weight, angle, size, nullptr);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	555 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	556
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	557 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	558 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	559 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	560 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	561 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	562 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	563 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	564 // 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	565
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	566 FT_Face face = font.get_face ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	567
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	568 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	569 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	570 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	571
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	572 line_bbox.push_back (bb);
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 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	575 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	576 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	577 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	578 break;
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 case MODE_RENDER:
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 // 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	583 // 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	584
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	585 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	586 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	587 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	588
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	589 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	590 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	591 + (new_bbox(3) + new_bbox(1)));
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	592 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	593 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	594 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	595 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	596 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	597 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	598
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	599 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	600 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	601 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	602 if (! bbox.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	603 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	604 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	605 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	606 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	607 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	608 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	609 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	610 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	611 return (bbox(2) - lb(2));
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	614
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	615 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	616 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	617
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	618 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	619 ft_text_renderer::compute_bbox (void)
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 // 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	622 // bounding box for the entire text string.
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 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	625
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	626 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	627 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	628 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	629 break;
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 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	632 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	633 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	634
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	635 default:
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	636 for (const auto& lbox : line_bbox)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	637 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	638 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	639 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	640 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	641 {
26221 76ac35f71573 Fix regression in multi-line text rendering (bug #55218) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26187 diff changeset	642 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	643 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	644 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	645 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	646 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	647 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	648 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	649 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	650 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	651
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	652 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	653 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	654 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	655 // 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	656 // 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	657 // 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	658 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	659
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	660 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	661 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	662 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	663 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	664 // 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	665 // See bug #55328.
45cf2ada3e39 Make sure text bounding box is high enough (bug #55328). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26221 diff changeset	666 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	667 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	668 bb(2) += m_deltax;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	669 }
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	672 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	673 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	674 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	675 mode = m;
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 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	678 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	679 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	680 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	681 m_max_fontsize = 0.0;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	682 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	683 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	684 push_new_line ();
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 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	689 {
22515 77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102). Rik <rik@octave.org> parents: 22407 diff changeset	690 ::error ("ft_text_renderer: invalid bounding box, cannot render");
21209 67d2965af0b5 revamp text rendering classes 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 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	693 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	694 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	695 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	696 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	697 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	698 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	699 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	700 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	701 line_yoffset = -bbox(1);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	702 yoffset = 0;
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 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	705
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	706 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	707 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	708 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	709 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	710 }
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	711 bool is_opaque (const FT_GlyphSlot &glyph, const int x, const int y)
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	712 {
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	713 // 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	714 // indexing-pixels-in-a-monochrome-freetype-glyph-buffer
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	715 int pitch = std::abs (glyph->bitmap.pitch);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	716 unsigned char row = &glyph->bitmap.buffer[pitch y];
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	717 char cvalue = row[x >> 3];
26995 ab5bfee22d18 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26858 diff changeset	718
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	719 return ((cvalue & (128 >> (x & 7))) != 0);
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	720 }
26995 ab5bfee22d18 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26858 diff changeset	721
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	722 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	723 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	724 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	725 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	726 FT_UInt glyph_index = 0;
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 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	729 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	730 glyph_index = FT_Get_Char_Index (face, code);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	731
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	732 if (code != '\n' && code != '\t'
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	733 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	734 \|\| 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	735 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	736 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	737 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	738 }
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	739 else if ((code == '\n') \|\| (code == '\t'))
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	740 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	741 glyph_index = FT_Get_Char_Index (face, ' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	742 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	743 \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	744 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	745 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	746 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	747 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	748 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	749 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	750 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	751 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	752 // Advance to next multiple of 4 times the width of the "space"
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	753 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	754 int x_tab = 4 * (face->glyph->advance.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	755 xoffset = (1 + std::floor (1. * xoffset / x_tab)) * x_tab;
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	756 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	757 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	758 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	759 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	760 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	761 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	762 case MODE_RENDER:
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	763 if (FT_Render_Glyph (face->glyph, (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	764 ? FT_RENDER_MODE_NORMAL
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	765 : FT_RENDER_MODE_MONO)))
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	766 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	767 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	768 warn_glyph_render (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	769 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	770 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	771 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	772 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	773 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	774
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	775 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	776 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	777 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	778
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	779 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	780 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	781 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	782 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	783
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	784 x0 = xoffset + face->glyph->bitmap_left;
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	785 y0 = line_yoffset + yoffset + (face->glyph->bitmap_top - 1);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	786
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	787 // 'w' seems to have a negative -1
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	788 // face->glyph->bitmap_left, this is so we don't index out
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	789 // of bound, and assumes we've allocated the right amount of
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	790 // horizontal space in the bbox.
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	791 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	792 x0 = 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	793
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	794 for (int r = 0; static_cast<unsigned int> (r) < bitmap.rows; r++)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	795 for (int c = 0; static_cast<unsigned int> (c) < bitmap.width; c++)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	796 {
26858 0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	797 unsigned char pix
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	798 = (m_antialias
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	799 ? bitmap.buffer[r*bitmap.width+c]
0adb232f93b9 Implement axes and text "fontsmoothing" property (bug #55833). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26619 diff changeset	800 : (is_opaque (face->glyph, c, r) ? 255 : 0));
26995 ab5bfee22d18 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26858 diff changeset	801
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	802 if (x0+c < 0 \|\| x0+c >= pixels.dim2 ()
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	803 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	804 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	805 // ::warning ("ft_text_renderer: x %d, y %d",
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	806 // x0+c, y0-r);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	807 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	808 else if (pixels(3, x0+c, y0-r).value () == 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	809 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	810 pixels(0, x0+c, y0-r) = color(0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	811 pixels(1, x0+c, y0-r) = color(1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	812 pixels(2, x0+c, y0-r) = color(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	813 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	814 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	815 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	816
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	817 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	818 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	819 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	820
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	821 case MODE_BBOX:
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	822 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	823
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	824 // If we have a previous glyph, use kerning information. This
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	825 // usually means moving a bit backward before adding the next
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	826 // 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	827 if (previous)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	828 {
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	829 FT_Vector delta;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	830
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	831 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	832 FT_KERNING_DEFAULT, &delta);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	833
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	834 xoffset += (delta.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	835 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	836
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	837 // 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	838 // 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	839
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	840 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	841 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	842
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	843 // 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	844 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	845 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	846 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	847 else
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	848 {
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	849 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	850 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	851 &glyph_bbox);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	852 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	853 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	854 m_ymin);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	855 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	856 m_ymax);
26478 6f22d0c91beb Fix memory leak with FT_Glyph objects (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26376 diff changeset	857 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	858 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	859 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	860 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	861 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	862 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	863 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	864
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	865 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	866 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	867
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	868 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	869 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	870 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	871 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	872 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	873 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	874 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	875 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	876
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	877 // 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	878
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	879 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	880
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	881 octave::unwind_protect frame;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	882 frame.protect_var (m_do_strlist);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	883 frame.protect_var (m_strlist);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	884 m_do_strlist = true;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	885
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	886 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	887
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	888 lst = m_strlist;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	889 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	890
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	891 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	892 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	893 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	894 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	895 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	896 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	897 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	898
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	899 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	900 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	901 uint32_t u32_c;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	902
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	903 size_t n = str.size ();
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	904 size_t icurr = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	905 size_t ibegin = 0;
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	906
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	907 // Initialize a new string
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	908 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	909 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	910 std::vector<double> xdata;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	911
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	912 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	913 {
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	914 // 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	915 // character
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	916 int mblen = octave_u8_strmbtouc_wrapper (&u32_c, c + icurr);
8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	917 n -= mblen;
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	918
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	919 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	920 {
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	921 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	922 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	923 // 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	924 // the newline character
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	925 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	926 fs.set_color (color);
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	927
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	928 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	929 if (! s.empty ())
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	930 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	931 fs.set_string (s);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	932 fs.set_y (line_yoffset + yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	933 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	934 fs.set_family (fname);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	935 m_strlist.push_back (fs);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	936 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	937 }
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	938 else
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	939 xdata.push_back (xoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	940 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	941
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	942 glyph_index = process_character (u32_c, previous);
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	943
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	944 if (u32_c == 10)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	945 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	946 previous = 0;
26617 98afb8bbd1f6 maint: Strip trailing whitespace from source files. John W. Eaton <jwe@octave.org> parents: 26573 diff changeset	947
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	948 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	949 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	950 // Start a new string in m_strlist
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	951 ibegin = icurr+1;
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	952 xdata.clear ();
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	953 fs = text_renderer::string (str.substr (ibegin), font,
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	954 line_xoffset, yoffset);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	955 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	956 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	957 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	958 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	959
26187 8d4f23b7f4eb Improve text extent calculation when using freetype text renderer (bug #55075) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26152 diff changeset	960 icurr += mblen;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	961 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	962
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	963 if (m_do_strlist && mode == MODE_RENDER && ! fs.get_string ().empty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	964 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	965 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	966 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	967 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	968 fs.set_family (fname);
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	969 m_strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	970 }
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	973
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	974 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	975 ft_text_renderer::visit (text_element_list& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	976 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	977 // Save and restore (after processing the list) the current font and color.
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	978
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	979 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	980 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	981
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	982 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	983
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	984 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	985 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	986 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	987
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	988 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	989 ft_text_renderer::visit (text_element_subscript& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	990 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	991 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	992 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	993 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	994
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	995 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	996 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	997
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	998 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	999 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1000 int h = font.get_face ()->size->metrics.height >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1001
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1002 // Shifting the baseline by 2/3 the font height seems to produce
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1003 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1004 yoffset -= (h * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1005
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1006 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1007 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1008 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1009
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1010 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1011
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1012 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1013 // 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	1014 // 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	1015 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1016 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1017 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1018
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1019 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1020 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	1021 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1022 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1023 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1024 int saved_yoffset = yoffset;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1025
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1026 set_font (font.get_name (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1027 font.get_size () - 2);
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 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1030 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1031 int s_asc = saved_font.get_face ()->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1032
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1033 // Shifting the baseline by 2/3 base font ascender seems to produce
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1034 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1035 yoffset += (s_asc * 2) / 3;
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 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1038 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1039 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1040
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1041 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1042
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1043 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1044 // If line_yoffset changed, this means we moved to a new line; hence yoffset
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1045 // 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	1046 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1047 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1048 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1049
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1050 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1051 ft_text_renderer::visit (text_element_color& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1052 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1053 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1054 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1055 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1058 ft_text_renderer::visit (text_element_fontsize& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1059 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1060 double sz = e.get_fontsize ();
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 // 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	1063 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1064
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1065 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	1066
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1067 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1068 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1069 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1070
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1071 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1072 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	1073 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1074 set_font (e.get_fontname (), font.get_weight (), font.get_angle (),
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1075 font.get_size ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1076
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1077 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1078 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1079 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1080
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1081 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1082 ft_text_renderer::visit (text_element_fontstyle& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1083 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1084 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1085 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1086 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1087 set_font (font.get_name (), "normal", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1088 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1089
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1090 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1091 set_font (font.get_name (), "bold", "normal", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1092 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1093
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1094 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1095 set_font (font.get_name (), "normal", "italic", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1096 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1097
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1098 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1099 set_font (font.get_name (), "normal", "oblique", font.get_size ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1100 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1101 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1102
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1103 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1104 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1105 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1106
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1107 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1108 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	1109 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1110 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1111
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1112 std::vector<double> xdata (1, xoffset);
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23795 diff changeset	1113 text_renderer::string fs ("-", font, xoffset, yoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1114
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1115 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	1116 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1117 process_character (code);
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1118 if (m_do_strlist && mode == MODE_RENDER)
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1119 {
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1120 fs.set_code (code);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1121 fs.set_xdata (xdata);
ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1122 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1123 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1124 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1125 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1126
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1127 if (m_do_strlist && mode == MODE_RENDER && fs.get_code ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1128 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1129 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1130 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1131 fs.set_family (font.get_face ()->family_name);
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1132 m_strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1133 }
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1136 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1137 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	1138 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1139 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1140 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1141
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	1142 for (auto *txt_elt : e)
22331 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 xoffset = saved_xoffset;
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	1145 txt_elt->accept (*this);
23696 08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace John W. Eaton <jwe@octave.org> parents: 23577 diff changeset	1146 max_xoffset = math::max (xoffset, max_xoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1147 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1148
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1149 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1150 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1151
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1152 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1153 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1154 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1155 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1156 set_color (Matrix (1, 3, 0.0));
26573 ad70a85f702b Avoid accumulating data in text_renderer member variable (bug #55287) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 26478 diff changeset	1157 m_strlist = std::list<text_renderer::string> ();
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1158 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1159
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1160 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1161 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	1162 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1163 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1164 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1165 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	1166 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	1167 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	1168 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1169 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1170 ::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	1171 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1172
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1173 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1174 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	1175 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1176 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1177 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1178 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1179 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1180
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1181 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1182
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1183 if (pixels.numel () > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1184 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1185 elt->accept (*this);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1186
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1187 switch (rotation)
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 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1190 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1191
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1192 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1193 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1194 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1195 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1196 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1197 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1198 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1199
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1200 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1201 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1202 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1203 idx(2) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1204 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1205 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1206 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1207
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1208 case ROTATION_180:
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 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1211 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1212 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1213 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1214 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1215 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1216 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1217
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1218 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1219 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1220 Array<octave_idx_type> perm (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1221 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1222 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1223 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1224 pixels = pixels.permute (perm);
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 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1227 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1228 idx(1) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1229 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1230 pixels = uint8NDArray (pixels.index (idx));
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 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1233 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1234 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1235
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1236 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1237 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1238
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1239 // Note:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1240 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1241 // y-extent is overly large because it is measured from baseline-to-baseline.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1242 // Calling routines, such as ylabel, may need to account for this mismatch.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1243
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1244 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1245 ft_text_renderer::get_extent (text_element *elt, double rotation)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1246 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1247 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1248 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1249 compute_bbox ();
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 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1252
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1253 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1254 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1255 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1256 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1257 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1258 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1259 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1260
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1261 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1262 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1263 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1264 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1265 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1266
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1267 return extent;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1268 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1269
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1270 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1271 ft_text_renderer::get_extent (const std::string& txt, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1272 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1273 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1274 text_element *elt = text_parser::parse (txt, interpreter);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1275 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1276 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1277
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1278 return extent;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1281 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1282 ft_text_renderer::rotation_to_mode (double rotation) const
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1283 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1284 // Clip rotation to range [0, 360]
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1285 while (rotation < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1286 rotation += 360.0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1287 while (rotation > 360.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1288 rotation -= 360.0;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1289
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1290 if (rotation == 0.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1291 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1292 else if (rotation == 90.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1293 return ROTATION_90;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1294 else if (rotation == 180.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1295 return ROTATION_180;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1296 else if (rotation == 270.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1297 return ROTATION_270;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1298 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1299 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1300 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1301
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1302 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1303 ft_text_renderer::text_to_pixels (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1304 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1305 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1306 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1307 bool handle_rotation)
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 rot_mode = rotation_to_mode (rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1310
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1311 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1312
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1313 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	1314 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1315 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1316
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	1317 if (pxls.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1318 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1319
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1320 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1321 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1322 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1323 box(0) = -box(2)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1324 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1325
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1326 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1327 box(0) = -box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1328 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1329
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1330 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1331 box(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1332 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1333 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1334
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1335 switch (valign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1336 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1337 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1338 box(1) = -box(3)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1339 break;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1340
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1341 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1342 box(1) = -box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1343 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1344
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1345 case 3:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1346 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1347
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1348 case 4:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1349 box(1) = -box(3)-box(1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1350 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1351
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1352 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1353 box(1) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1354 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1355 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1356
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1357 if (handle_rotation)
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1358 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1359 switch (rot_mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1360 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1361 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1362 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1363 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1364 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1365 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1366
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1367 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1368 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1369 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1370 break;
17271 cb7233cfbf43 Prepare base text rendering code for full TeX support. Michael Goffioul <michael.goffioul@gmail.com> parents: 17270 diff changeset	1371
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1372 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1373 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1374 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1375 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1376 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1377 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1378 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1379 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1380
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1381 ft_text_renderer::ft_font::ft_font (const ft_font& ft)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	1382 : text_renderer::font (ft), face (nullptr)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1383 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1384 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1385 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1386
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1387 if (ft_face && FT_Reference_Face (ft_face) == 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1388 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1389 #endif
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1392 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1393 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	1394 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1395 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1396 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1397 text_renderer::font::operator = (ft);
17271 cb7233cfbf43 Prepare base text rendering code for full TeX support. Michael Goffioul <michael.goffioul@gmail.com> parents: 17270 diff changeset	1398
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1399 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1400 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1401 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	1402 face = nullptr;
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1403 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1404
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1405 #if defined (HAVE_FT_REFERENCE_FACE)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1406 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	1407
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1408 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	1409 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	1410 #endif
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1411 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1412
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1413 return *this;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1414 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1415
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1416 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1417 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	1418 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1419 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1420 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1421 face = ft_manager::get_font (name, weight, angle, size);
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1422
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1423 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1424 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1425 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	1426 ::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	1427 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1428 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1429 ::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	1430 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1431
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1432 return face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1433 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1434 }
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1435
20945 9d9270e2f98f eliminate comments after preprocessor conditionals John W. Eaton <jwe@octave.org> parents: 20715 diff changeset	1436 #endif
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1437
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1438 namespace octave
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1439 {
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1440 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1441 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1442 {
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1443 #if defined (HAVE_FREETYPE)
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1444 return new ft_text_renderer ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1445 #else
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1446 return 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1447 #endif
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1448 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1449 }

Mercurial > octave

annotate libinterp/corefcn/ft-text-renderer.cc @ 26995:ab5bfee22d18