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

annotate libinterp/corefcn/ft-text-renderer.cc @ 25460:627d6bde9b8d

solve installation info initialization problem differently Back out changesets 893344cee100 and 69fc8935020b. * defaults.h, defaults.cc: Instead of storing installation info like include_dir, data_dir, info_dir, etc., in file-scope static variables or a class object owned by the interpreter, store the initialized values as constants inside the functions that return them. This way they are initialized on demand and we don't have to worry about initialization order of static data. It's OK for these to be static because even though they may require some computation to intialize (looking at environment variables or substituting the value of OCTAVE_HOME), they are constants for any given installation of Octave and will be the same for any instantiation of the interpreter. Only include defaults.h in files that actually need it.

author	John W. Eaton <jwe@octave.org>
date	Tue, 12 Jun 2018 13:03:04 -0400
parents	893344cee100
children	b68c41cb0f99

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
25054 6652d3823428 maint: Update copyright dates in all source files. John W. Eaton <jwe@octave.org> parents: 24900 diff changeset	3 Copyright (C) 2016-2018 John W. Eaton
6652d3823428 maint: Update copyright dates in all source files. John W. Eaton <jwe@octave.org> parents: 24900 diff changeset	4 Copyright (C) 2009-2018 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
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	40
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	41 #if defined (HAVE_FONTCONFIG)
21200 fcac5dbbf9ed maint: Indent #ifdef blocks in libinterp. Rik <rik@octave.org> parents: 21102 diff changeset	42 # include <fontconfig/fontconfig.h>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	43 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	44
21334 36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	45 #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	46 # 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	47 #endif
36e75e013849 * ft-text-renderer.cc: Use pragma to avoid old-style cast warnings. John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	48
17352 4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	49 #include <clocale>
4a348443de9b Support multibyte characters in Freetype-based renderer (bug #31596). Michael Goffioul <michael.goffioul@gmail.com> parents: 17330 diff changeset	50 #include <cwchar>
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	51 #include <map>
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	52 #include <utility>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	53
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	54 #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	55 #include "unistr-wrappers.h"
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	56
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	57 #include "defaults.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	58 #include "error.h"
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	59 #include "file-ops.h"
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	60 #include "oct-env.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	61 #include "pr-output.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	62 #include "text-renderer.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	63
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	64 namespace octave
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	65 {
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	66 // 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	67 // combination.
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	68
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	69 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	70 warn_missing_glyph (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	71 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	72 warning_with_id ("Octave:missing-glyph",
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	73 "text_renderer: skipping missing glyph for character '%x'", c);
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	74 }
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 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	77 warn_glyph_render (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	78 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	79 warning_with_id ("Octave:glyph-render",
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	80 "text_renderer: unable to render glyph for character '%x'", c);
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	81 }
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	82
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	83 #if defined (_MSC_VER)
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	84 // FIXME: is this really needed?
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	85 //
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	86 // 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	87 // 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	88 // 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	89 // use the imported one instead.
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	90 # include "PermMatrix.h"
13730 a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	91 #endif
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	92
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	93 // Forward declaration
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	94 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	95
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	96 class
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	97 ft_manager
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	98 {
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	99 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	100
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	101 ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	102 : library (), freetype_initialized (false), fontconfig_initialized (false)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	103 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	104 if (FT_Init_FreeType (&library))
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	105 error ("unable to initialize FreeType library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	106 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	107 freetype_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	108
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	109 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	110 if (! FcInit ())
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	111 error ("unable to initialize fontconfig library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	112 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	113 fontconfig_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	114 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	115 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	116
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	117 public:
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	118
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	119 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	120
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	121 ft_manager (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	122
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	123 ft_manager& operator = (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	124
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	125 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	126
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	127 ~ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	128 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	129 if (freetype_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	130 FT_Done_FreeType (library);
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	131
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	132 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	133 // 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	134 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	135 // 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	136 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	137 // if (fontconfig_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	138 // FcFini ();
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	139 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	140 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	141
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	142 public:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	143
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	144 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	145 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	146 bool retval = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	147
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	148 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	149 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	150 instance = new ft_manager ();
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	151
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	152 if (instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	153 singleton_cleanup_list::add (cleanup_instance);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	154 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	155
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	156 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	157 error ("unable to create ft_manager!");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	158
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	159 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	160 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	161
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	162 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	163
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	164 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	165 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	166 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	167 return (instance_ok ()
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	168 ? 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	169 : nullptr);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	170 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	171
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	172 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	173 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	174 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	175 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	176 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	177
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	178 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	179
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	180 static ft_manager *instance;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	181
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	182 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	183 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	184
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	185 // 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	186 // 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	187 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	188 ft_cache cache;
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	189
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	190 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	191 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	192 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	193 FT_Face retval = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	194
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	195 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	196 // 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	197 // 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	198
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23795 diff changeset	199 ft_key key (name + ':' + weight + ':' + angle, size);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	200 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	201
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	202 if (it != cache.end ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	203 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	204 FT_Reference_Face (it->second);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	205 return it->second;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	206 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	207 #endif
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 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 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	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 ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	212 {
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	213 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	214
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	215 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	216 #if defined (SYSTEM_FREEFONT_DIR)
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	217 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	218 #else
25460 627d6bde9b8d solve installation info initialization problem differently John W. Eaton <jwe@octave.org> parents: 25440 diff changeset	219 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	220 #endif
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	221 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	222
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	223
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	224 // Default font file
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	225 std::string file;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	226
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	227 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	228 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	229 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	230
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	231 if (weight == "bold")
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	232 file += "Bold";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	233
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	234 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	235 file += "Oblique";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	236
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	237 file += ".otf";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	238 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	239
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	240 #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	241 if (name != "*" && fontconfig_initialized)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	242 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	243 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	244
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	245 if (weight == "bold")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	246 fc_weight = FC_WEIGHT_BOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	247 else if (weight == "light")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	248 fc_weight = FC_WEIGHT_LIGHT;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	249 else if (weight == "demi")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	250 fc_weight = FC_WEIGHT_DEMIBOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	251 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	252 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	253
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	254 if (angle == "italic")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	255 fc_angle = FC_SLANT_ITALIC;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	256 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	257 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	258 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	259 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	260
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	261 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	262
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	263 FcPatternAddString (pat, FC_FAMILY,
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	264 (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	265 (name.c_str ())));
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	266
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	267 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	268 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	269 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	270
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	271 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	272 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	273 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	274 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	275
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	276 FcDefaultSubstitute (pat);
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	277 match = FcFontMatch (nullptr, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	278
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	279 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	280 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	281 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	282 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	283 unsigned char *tmp;
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 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	286 file = reinterpret_cast<char *> (tmp);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	287 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	288 else
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	289 ::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	290 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	291 size);
9403 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 (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	294 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	295 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	296
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	297 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	298 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	299 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	300
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	301 if (file.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	302 ::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	303 else
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	304 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	305 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	306 ::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	307 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	308 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	309 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	310 // 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	311 // 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	312 // 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	313
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	314 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	315 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	316
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	317 // 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	318
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	319 cache[key] = retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	320 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	321 #endif
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	322 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	323
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	324 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	325 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	326
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	327 void do_font_destroyed (FT_Face face)
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 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	330 {
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	331 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	332
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	333 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	334 delete pkey;
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	335 face->generic.data = nullptr;
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	336 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	337 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	338
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	339 private:
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	340 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	341 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	342 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	343 };
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	344
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23447 diff changeset	345 ft_manager *ft_manager::instance = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	346
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	347 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	348 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	349 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	350 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	351 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	352
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	353 class
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	354 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	355 ft_text_renderer : public base_text_renderer
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	356 {
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	357 public:
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	358
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	359 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	360 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	361 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	362 MODE_RENDER = 1
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 enum
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 ROTATION_0 = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	368 ROTATION_90 = 1,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	369 ROTATION_180 = 2,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	370 ROTATION_270 = 3
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	371 };
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	372
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	373 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	374
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	375 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	376 : 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	377 xoffset (0), line_yoffset (0), yoffset (0), mode (MODE_BBOX),
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	378 color (dim_vector (1, 3), 0)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	379 { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	380
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	381 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	382
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	383 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	384
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	385 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	386
22868 87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors John W. Eaton <jwe@octave.org> parents: 22865 diff changeset	387 ~ft_text_renderer (void) = default;
22331 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_string& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	390
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	391 void visit (text_element_list& 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_subscript& 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_superscript& e);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	396
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	397 void visit (text_element_color& 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_fontsize& 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_fontname& 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 visit (text_element_fontstyle& e);
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 void visit (text_element_symbol& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	406
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	407 void visit (text_element_combined& e);
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 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	410
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	411 uint8NDArray get_pixels (void) const { return pixels; }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	412
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	413 Matrix get_boundingbox (void) const { return bbox; }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	414
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	415 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	416 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	417
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	418 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	419 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	420 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	421
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	422 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	423 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	424
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	425 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	426
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	427 void set_mode (int m);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	428
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	429 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	430 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	431 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	432 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	433 bool handle_rotation);
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 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	436
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	437 int rotation_to_mode (double rotation) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	438
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	439 // 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	440 // 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	441
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	442 class ft_font : public text_renderer::font
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	443 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	444 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	445
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	446 ft_font (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	447 : text_renderer::font (), face (nullptr) { }
22331 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 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	450 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	451 : 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	452 { }
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 ft_font (const ft_font& ft);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	455
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	456 ~ft_font (void)
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 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	459 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	460 }
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_font& operator = (const ft_font& ft);
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 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	465
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	466 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	467
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	468 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	469
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	470 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	471 };
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	472
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	473 void push_new_line (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 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	476
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	477 void compute_bbox (void);
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 int compute_line_xoffset (const Matrix& lb) const;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	480
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	481 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	482
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	483 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	484
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	485 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	486 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	487 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	488 const caseless_str& interp);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	489
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	490 private:
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	491
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	492 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	493 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	494
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	495 // 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	496 // 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	497 // 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	498 // 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	499 // 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	500 Matrix bbox;
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 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	503 // 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	504 uint8NDArray pixels;
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 // 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	507 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	508 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	509
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	510 // 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	511 int halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	512
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	513 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	514 int xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	515
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	516 // 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	517 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	518
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	519 // 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	520 // 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	521 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	522 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	523
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	524 // 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	525 int mode;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	526
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	527 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	528 uint8NDArray color;
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 // A list of parsed strings to be used for printing.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	531 std::list<text_renderer::string> strlist;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	532
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	533 // 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	534 int line_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	535
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	536 };
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	537
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	538 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	539 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	540 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	541 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	542 // FIXME: take "fontunits" into account
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	543
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	544 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	545 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	546
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	547 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	548 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	549 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	550 switch (mode)
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 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	553 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	554 // 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	555
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	556 FT_Face face = font.get_face ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	557
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	558 if (face)
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 int asc = face->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	561 int desc = face->size->metrics.descender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	562 int h = face->size->metrics.height >> 6;
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 Matrix bb (1, 5, 0.0);
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 bb(1) = desc;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	567 bb(3) = asc - desc;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	568 bb(4) = h;
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 line_bbox.push_back (bb);
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 xoffset = yoffset = 0;
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	575 break;
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 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	578 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	579 // 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	580 // 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	581
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	582 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	583 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	584 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	585
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	586 xoffset = line_xoffset = compute_line_xoffset (new_bbox);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	587 line_yoffset += (old_bbox(1) - (new_bbox(1) + new_bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	588 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	589 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	590 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	591 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	592 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	593
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	594 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	595 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	596 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	597 if (! bbox.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	598 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	599 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	600 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	601 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	602 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	603 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	604 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	605 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	606 return (bbox(2) - lb(2));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	607 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	608 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	609
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	610 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	611 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	614 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	615 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	616 // 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	617 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	618
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	619 bbox = Matrix ();
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 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	622 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	623 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	624 break;
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 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	627 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	628 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	629
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	630 default:
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	631 for (const auto& lbox : line_bbox)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	632 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	633 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	634 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	635 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	636 {
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	637 bbox(1) -= lbox(3);
e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	638 bbox(3) += lbox(3);
23696 08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace John W. Eaton <jwe@octave.org> parents: 23577 diff changeset	639 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	640 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	641 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	642 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	643 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	644 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	645
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	646 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	647 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	648 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	649 // 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	650 // 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	651 // 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	652 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	653
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	654 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	655 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	656 int asc = font.get_face ()->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	657 int desc = font.get_face ()->size->metrics.descender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	658
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	659 Matrix& bb = line_bbox.back ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	660
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	661 if ((yoffset + desc) < bb(1))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	662 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	663 // The new font goes below the bottom of the current bbox.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	664
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	665 int delta = bb(1) - (yoffset + desc);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	666
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	667 bb(1) -= delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	668 bb(3) += delta;
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 if ((yoffset + asc) > (bb(1) + bb(3)))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	672 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	673 // The new font goes above the top of the current bbox.
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 int delta = (yoffset + asc) - (bb(1) + bb(3));
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	676
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	677 bb(3) += delta;
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	680 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	681
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	682 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	683 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	684 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	685 mode = m;
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 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	688 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	689 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	690 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	691 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	692 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	693 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	694 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	695
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	696 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	697 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	698 {
22515 77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102). Rik <rik@octave.org> parents: 22407 diff changeset	699 ::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	700
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	701 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	702 pixels = uint8NDArray ();
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 else
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 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	707 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	708 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	709 xoffset = compute_line_xoffset (line_bbox.front ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	710 line_yoffset = -bbox(1)-1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	711 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	712 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	713 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	714
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	715 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	716 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	717 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	718 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	719 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	720
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	721 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	722 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	723 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	724 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	725 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	726
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	727 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	728 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	729 glyph_index = FT_Get_Char_Index (face, code);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	730
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	731 if (code != '\n' && code != '\t'
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	732 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	733 \|\| 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	734 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	735 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	736 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	737 }
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	738 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	739 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	740 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	741 if (! glyph_index
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	742 \|\| 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	743 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	744 glyph_index = 0;
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	745 warn_missing_glyph (' ');
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	746 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	747 else if (code == '\n')
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	748 push_new_line ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	749 else
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	750 {
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	751 // 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	752 // character.
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	753 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	754 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	755 }
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	756 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	757 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	758 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	759 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	760 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	761 case MODE_RENDER:
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	762 if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL))
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	763 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	764 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	765 warn_glyph_render (code);
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 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	768 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	769 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	770 int x0, y0;
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 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	773 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	774 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	775
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	776 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	777 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	778 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	779 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	780
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	781 x0 = xoffset + face->glyph->bitmap_left;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	782 y0 = line_yoffset + yoffset + face->glyph->bitmap_top;
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 // '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	785 // 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	786 // 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	787 // horizontal space in the bbox.
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	788 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	789 x0 = 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	790
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	791 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	792 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	793 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	794 unsigned char pix = bitmap.buffer[r*bitmap.width+c];
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	795 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	796 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	797 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	798 //::warning ("ft_text_renderer: pixel out of bound (char=%d, (x,y)=(%d,%d), (w,h)=(%d,%d)",
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	799 // str[i], x0+c, y0-r, pixels.dim2 (), pixels.dim3 ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	800 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	801 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	802 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	803 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	804 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	805 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	806 pixels(3, x0+c, y0-r) = pix;
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 }
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 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	811 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	812 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	813
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	814 case MODE_BBOX:
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	815 Matrix& bb = line_bbox.back ();
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	816
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	817 // 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	818 // 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	819 // 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	820 if (previous)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	821 {
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	822 FT_Vector delta;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	823
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	824 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	825 FT_KERNING_DEFAULT, &delta);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	826
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	827 xoffset += (delta.x >> 6);
c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	828 }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	829
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	830 // 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	831 // 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	832
25421 c335f94766a7 Re-organize to avoid code duplication (bug #54083). Markus Mützel <markus.muetzel@gmx.de> parents: 25420 diff changeset	833 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	834 bb(2) = math::max (bb(2), xoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	835 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	836 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	837 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	838 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	839
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	840 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	841 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	842
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	843 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	844 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	845 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	846 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	847 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	848 const caseless_str& interp)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	849 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	850 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	851
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	852 // 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	853
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	854 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	855
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	856 lst = strlist;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	857 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	858
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	859 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	860 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	861 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	862 if (font.is_valid ())
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 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	865
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	866 std::string str = e.string_value ();
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	867 size_t n;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	868 // convert str to UTF-32
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	869 uint32_t *u32_str;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	870 u32_str = octave_u8_to_u32_wrapper (reinterpret_cast<const uint8_t *> (str.c_str ()), str.length (), nullptr, &n);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	871 if (! u32_str)
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	872 error ("ft_text_renderer: converting from UTF-8 to UTF-32: %s",
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	873 std::strerror (errno));
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	874 size_t curr = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	875 size_t idx = 0;
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	876 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	877 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	878 std::vector<double> xdata;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	879
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	880 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	881 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	882 n -= 1;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	883
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	884 if (u32_str[curr] == 10)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	885 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	886 // Finish previous string in strlist before processing
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	887 // the newline character
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	888 fs.set_y (line_yoffset + yoffset);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	889 fs.set_color (color);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	890 // FIXME: Do we have to convert back to UTF-8 and keep strlist
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	891 // in sync? Might fail with multi-byte characters as it is now.
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	892 std::string s = str.substr (idx, curr - idx);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	893 if (! s.empty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	894 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	895 fs.set_string (s);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	896 fs.set_xdata (xdata);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	897 fs.set_family (fname);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	898 strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	899 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	900 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	901 else
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	902 xdata.push_back (xoffset);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	903
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	904 glyph_index = process_character (u32_str[curr], previous);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	905
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	906
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	907 if (u32_str[curr] == 10)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	908 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	909 previous = 0;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	910 // Start a new string in strlist
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	911 idx = curr+1;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	912 xdata.clear ();
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	913 // FIXME: Do we have to convert back to UTF-8 and keep strlist
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	914 // in sync? Might fail with multi-byte characters as it is now.
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	915 fs = text_renderer::string (str.substr (idx), font,
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	916 line_xoffset, yoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	917 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	918 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	919 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	920
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	921 curr += 1;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	922 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	923
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	924 if (! fs.get_string ().empty ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	925 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	926 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	927 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	928 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	929 fs.set_family (fname);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	930 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	931 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	932 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	933 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	934
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	935 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	936 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	937 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	938 // 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	939
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	940 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	941 uint8NDArray saved_color (color);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	942
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	943 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	944
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	945 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	946 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	947 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	948
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	949 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	950 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	951 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	952 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	953 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	954 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	955
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	956 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	957 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	958
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	959 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	960 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	961 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	962
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	963 // 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	964 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	965 yoffset -= (h * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	966
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	967 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	968 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	969 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	970
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	971 text_processor::visit (e);
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 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	974 // 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	975 // 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	976 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	977 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	978 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	979
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	980 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	981 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	982 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	983 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	984 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	985 int saved_yoffset = yoffset;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	986
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	987 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	988 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	989
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	990 if (saved_font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	991 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	992 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	993
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	994 // 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	995 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	996 yoffset += (s_asc * 2) / 3;
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 (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	999 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1000 }
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1003
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1004 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1005 // 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	1006 // 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	1007 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1008 yoffset = saved_yoffset;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1011 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1012 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	1013 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1014 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1015 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1016 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1019 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	1020 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1021 double sz = e.get_fontsize ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1022
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1023 // 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	1024 // in the text object FontUnit.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1025
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1026 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	1027
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1028 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1029 update_line_bbox ();
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1032 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1033 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	1034 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1035 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	1036 font.get_size ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1037
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1038 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1039 update_line_bbox ();
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1042 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1043 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	1044 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1045 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1046 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1047 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1048 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	1049 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1050
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1051 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1052 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	1053 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1054
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1055 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1056 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	1057 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1058
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1059 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1060 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	1061 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1062 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1063
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1064 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1065 update_line_bbox ();
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1068 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1069 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	1070 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1071 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1072
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1073 std::vector<double> xdata (1, xoffset);
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23795 diff changeset	1074 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	1075
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1076 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	1077 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1078 process_character (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1079 fs.set_code (code);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1080 fs.set_xdata (xdata);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1081 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1082 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1083 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1084
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1085 if (fs.get_code ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1086 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1087 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1088 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1089 fs.set_family (font.get_face ()->family_name);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1090 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1091 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1092 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1093
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1094 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1095 ft_text_renderer::visit (text_element_combined& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1096 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1097 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1098 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1099
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	1100 for (auto *txt_elt : e)
22331 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 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	1103 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	1104 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	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 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1108 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1109
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1110 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1111 ft_text_renderer::reset (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1112 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1113 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1114 set_color (Matrix (1, 3, 0.0));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1115 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1116
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1117 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1118 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	1119 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1120 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1121 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1122 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	1123 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	1124 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	1125 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1126 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1127 ::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	1128 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1129
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1130 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1131 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	1132 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1133 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1134 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1135 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1136 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1137
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1138 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1139 // Clear the list of parsed strings
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1140 strlist.clear ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1141
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1142 if (pixels.numel () > 0)
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 elt->accept (*this);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1145
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1146 switch (rotation)
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 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1149 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1150
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1151 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1152 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1153 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	1154 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1155 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1156 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1157 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1158
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1159 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	1160 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1161 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	1162 idx(2) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1163 pixels = uint8NDArray (pixels.index (idx));
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 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1166
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1167 case ROTATION_180:
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 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	1170 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1171 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	1172 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	1173 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1174 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1175 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1176
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1177 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1178 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1179 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	1180 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1181 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1182 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1183 pixels = pixels.permute (perm);
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 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	1186 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1187 idx(1) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1188 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	1189 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1190 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1191 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1192 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1193 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1194
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1195 return pixels;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1196 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1197
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1198 // Note:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1199 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1200 // 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	1201 // 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	1202
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1203 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1204 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	1205 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1206 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1207 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1208 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1209
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1210 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1211
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1212 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1213 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1214 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1215 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1216 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1217 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1218 break;
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 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1221 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1222 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1223 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1224 }
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 return extent;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1227 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1228
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1229 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1230 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	1231 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1232 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1233 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	1234 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1235 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1236
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1237 return extent;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1240 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1241 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	1242 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1243 // Clip rotation to range [0, 360]
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1244 while (rotation < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1245 rotation += 360.0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1246 while (rotation > 360.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1247 rotation -= 360.0;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1248
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1249 if (rotation == 0.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1250 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1251 else if (rotation == 90.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1252 return ROTATION_90;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1253 else if (rotation == 180.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1254 return ROTATION_180;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1255 else if (rotation == 270.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1256 return ROTATION_270;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1257 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1258 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1259 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1260
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1261 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1262 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	1263 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1264 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1265 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1266 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1267 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1268 int rot_mode = rotation_to_mode (rotation);
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 halign = _halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1271
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1272 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	1273 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1274 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1275
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	1276 if (pxls.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1277 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1278
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1279 switch (halign)
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 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1282 box(0) = -box(2)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1283 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1284
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1285 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1286 box(0) = -box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1287 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1288
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1289 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1290 box(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1291 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1292 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1293
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1294 switch (valign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1295 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1296 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1297 box(1) = -box(3)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1298 break;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1299
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1300 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1301 box(1) = -box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1302 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1303
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1304 case 3:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1305 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1306
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1307 case 4:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1308 box(1) = -box(3)-box(1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1309 break;
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 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1312 box(1) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1313 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1314 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1315
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1316 if (handle_rotation)
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1317 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1318 switch (rot_mode)
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 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1321 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1322 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1323 box(0) = -box(0)-box(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 ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1327 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1328 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1329 break;
17271 cb7233cfbf43 Prepare base text rendering code for full TeX support. Michael Goffioul <michael.goffioul@gmail.com> parents: 17270 diff changeset	1330
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1331 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1332 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1333 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1334 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1335 break;
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1338 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1339
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1340 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	1341 : text_renderer::font (ft), face (nullptr)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1342 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1343 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1344 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1345
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1346 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	1347 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1348 #endif
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1349 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1350
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1351 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1352 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	1353 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1354 if (&ft != this)
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 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	1357
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1358 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1359 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1360 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	1361 face = nullptr;
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1362 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1363
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1364 #if defined (HAVE_FT_REFERENCE_FACE)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1365 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	1366
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1367 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	1368 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	1369 #endif
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1370 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1371
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1372 return *this;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1373 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1374
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1375 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1376 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	1377 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1378 if (! face && ! name.empty ())
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 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	1381
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1382 if (face)
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 (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	1385 ::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	1386 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1387 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1388 ::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	1389 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1390
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1391 return face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1392 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1393 }
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1394
20945 9d9270e2f98f eliminate comments after preprocessor conditionals John W. Eaton <jwe@octave.org> parents: 20715 diff changeset	1395 #endif
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1396
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1397 namespace octave
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1398 {
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1399 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1400 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1401 {
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1402 #if defined (HAVE_FREETYPE)
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1403 return new ft_text_renderer ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1404 #else
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1405 return 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1406 #endif
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1407 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1408 }

Mercurial > octave

annotate libinterp/corefcn/ft-text-renderer.cc @ 25460:627d6bde9b8d