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

annotate libinterp/corefcn/ft-text-renderer.cc @ 25362:def1b446ba64

Convert strings to UTF-32 for FreeType (bug #53646). * ft-text-renderer.cc ft_text_renderer::visit (text_element_string&)): Convert strings to UTF-32 before passing them to FreeType. * unistr-wrappers.[c/h]: Add new wrapper files for octave_u8_to_u32_wrapper. * wrappers/module.mk: Add new files. * bootstrap.conf: Add new gnulib module unistr/u8-to-u32.

author	Markus Mützel <markus.muetzel@gmx.de>
date	Sun, 06 May 2018 21:03:51 +0200
parents	389757b7b6af
children	24bf1d9dd834

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>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	51 #include <iostream>
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	52 #include <map>
ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	53 #include <utility>
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	54
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	55 #include "singleton-cleanup.h"
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	56 #include "unistr-wrappers.h"
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	57
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	58 #include "defaults.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	59 #include "error.h"
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	60 #include "file-ops.h"
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	61 #include "oct-env.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	62 #include "pr-output.h"
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	63 #include "text-renderer.h"
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	64
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	65 namespace octave
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	66 {
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	67 // FIXME: maybe issue at most one warning per glyph/font/size/weight
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	68 // combination.
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	69
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	70 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	71 warn_missing_glyph (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	72 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	73 warning_with_id ("Octave:missing-glyph",
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	74 "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	75 }
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	76
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	77 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	78 warn_glyph_render (FT_ULong c)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	79 {
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	80 warning_with_id ("Octave:glyph-render",
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	81 "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	82 }
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	83
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	84 #if defined (_MSC_VER)
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	85 // FIXME: is this really needed?
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	86 //
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	87 // This is just a trick to avoid multiple symbol definitions.
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	88 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	89 // that will cause MSVC not to generate a new instantiation and
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	90 // use the imported one instead.
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	91 # include "PermMatrix.h"
13730 a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	92 #endif
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	93
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	94 // Forward declaration
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	95 static void ft_face_destroyed (void *object);
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	96
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	97 class
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	98 ft_manager
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	99 {
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	100 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	101
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	102 ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	103 : library (), freetype_initialized (false), fontconfig_initialized (false)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	104 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	105 if (FT_Init_FreeType (&library))
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	106 error ("unable to initialize FreeType library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	107 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	108 freetype_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	109
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	110 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	111 if (! FcInit ())
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	112 error ("unable to initialize fontconfig library");
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	113 else
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	114 fontconfig_initialized = true;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	115 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	116 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	117
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	118 public:
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	119
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	120 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	121
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	122 ft_manager (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	123
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	124 ft_manager& operator = (const ft_manager&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	125
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	126 private:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	127
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	128 ~ft_manager (void)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	129 {
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	130 if (freetype_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	131 FT_Done_FreeType (library);
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	132
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	133 #if defined (HAVE_FONTCONFIG)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	134 // FIXME: Skip the call to FcFini because it can trigger the assertion
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	135 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	136 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	137 //
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	138 // if (fontconfig_initialized)
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	139 // FcFini ();
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	140 #endif
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	141 }
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	142
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	143 public:
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	144
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	145 static bool instance_ok (void)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	146 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	147 bool retval = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	148
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	149 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	150 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	151 instance = new ft_manager ();
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	152
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	153 if (instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	154 singleton_cleanup_list::add (cleanup_instance);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	155 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	156
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	157 if (! instance)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	158 error ("unable to create ft_manager!");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	159
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	160 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	161 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	162
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	163 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	164
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	165 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	166 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	167 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	168 return (instance_ok ()
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	169 ? 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	170 : nullptr);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	171 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	172
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	173 static void font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	174 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	175 if (instance_ok ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	176 instance->do_font_destroyed (face);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	177 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	178
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	179 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	180
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	181 static ft_manager *instance;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	182
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	183 typedef std::pair<std::string, double> ft_key;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	184 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	185
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	186 // 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	187 // 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	188 // in class text_renderer.
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	189 ft_cache cache;
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	190
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	191 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	192 const std::string& angle, double size)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	193 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	194 FT_Face retval = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	195
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	196 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	197 // 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	198 // 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	199
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23795 diff changeset	200 ft_key key (name + ':' + weight + ':' + angle, size);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	201 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	202
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	203 if (it != cache.end ())
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	204 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	205 FT_Reference_Face (it->second);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	206 return it->second;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	207 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	208 #endif
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	209
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	210 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	211
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	212 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	213 {
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	214 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	215
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	216 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	217 #if defined (SYSTEM_FREEFONT_DIR)
00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348) Mike Miller <mtmiller@octave.org> parents: 24899 diff changeset	218 fonts_dir = SYSTEM_FREEFONT_DIR;
00d42b86d0a5 configure: new option --with-system-freefont to use system fonts (bug #53348) Mike Miller <mtmiller@octave.org> parents: 24899 diff changeset	219 #else
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	220 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	221 #endif
24126 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
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	225 // Default font file
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	226 std::string file;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	227
24899 1a46d174a483 include a proper definition of Octave's private font fallback directory Mike Miller <mtmiller@octave.org> parents: 24722 diff changeset	228 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	229 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	230 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	231
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	232 if (weight == "bold")
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	233 file += "Bold";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	234
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	235 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	236 file += "Oblique";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	237
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	238 file += ".otf";
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	239 }
2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	240
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	241 #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	242 if (name != "*" && fontconfig_initialized)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	243 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	244 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	245
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	246 if (weight == "bold")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	247 fc_weight = FC_WEIGHT_BOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	248 else if (weight == "light")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	249 fc_weight = FC_WEIGHT_LIGHT;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	250 else if (weight == "demi")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	251 fc_weight = FC_WEIGHT_DEMIBOLD;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	252 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	253 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	254
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	255 if (angle == "italic")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	256 fc_angle = FC_SLANT_ITALIC;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	257 else if (angle == "oblique")
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	258 fc_angle = FC_SLANT_OBLIQUE;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	259 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	260 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	261
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	262 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	263
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	264 FcPatternAddString (pat, FC_FAMILY,
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	265 (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	266 (name.c_str ())));
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	267
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	268 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	269 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	270 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	271
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	272 if (FcConfigSubstitute (nullptr, pat, FcMatchPattern))
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	273 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	274 FcResult res;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	275 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	276
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	277 FcDefaultSubstitute (pat);
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	278 match = FcFontMatch (nullptr, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	279
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	280 // FIXME: originally, this test also required that
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	281 // res != FcResultNoMatch. Is that really needed?
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	282 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	283 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	284 unsigned char *tmp;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	285
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	286 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	287 file = reinterpret_cast<char *> (tmp);
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	288 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	289 else
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	290 ::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	291 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	292 size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	293
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	294 if (match)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	295 FcPatternDestroy (match);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	296 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	297
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	298 FcPatternDestroy (pat);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	299 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	300 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	301
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	302 if (file.empty ())
24126 2390079a8aed Provide default font files and use them (bug #52150) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 24076 diff changeset	303 ::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	304 else
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	305 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	306 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	307 ::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	308 #if defined (HAVE_FT_REFERENCE_FACE)
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	309 else
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	310 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	311 // 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	312 // 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	313 // 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	314
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	315 retval->generic.data = new ft_key (key);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	316 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	317
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	318 // 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	319
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	320 cache[key] = retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	321 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	322 #endif
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	323 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	324
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	325 return retval;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	326 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	327
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	328 void do_font_destroyed (FT_Face face)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	329 {
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	330 if (face->generic.data)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	331 {
23447 db1fdf4384dd maint: Use convention "static_cast<void >" for casting of pointers. Rik <rik@octave.org>* parents: 23220 diff changeset	332 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	333
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	334 cache.erase (*pkey);
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	335 delete pkey;
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	336 face->generic.data = nullptr;
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	337 }
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	338 }
17270 ba865ea9c7e9 Add simple FreeType font cache in class ft_manager. Michael Goffioul <michael.goffioul@gmail.com> parents: 17269 diff changeset	339
22407 34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	340 private:
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	341 FT_Library library;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	342 bool freetype_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	343 bool fontconfig_initialized;
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	344 };
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	345
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23447 diff changeset	346 ft_manager *ft_manager::instance = nullptr;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	347
24722 af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	348 static void
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	349 ft_face_destroyed (void *object)
af6c1ed60581 avoid splitting namespace blocks unnecessarily John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	350 {
25336 389757b7b6af eliminate redundant octave:: namespace tags John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	351 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	352 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	353
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	354 class
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	355 OCTINTERP_API
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	356 ft_text_renderer : public base_text_renderer
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	357 {
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	358 public:
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	359
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	360 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	361 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	362 MODE_BBOX = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	363 MODE_RENDER = 1
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	366 enum
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	367 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	368 ROTATION_0 = 0,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	369 ROTATION_90 = 1,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	370 ROTATION_180 = 2,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	371 ROTATION_270 = 3
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	374 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	375
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	376 ft_text_renderer (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	377 : 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	378 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	379 color (dim_vector (1, 3), 0)
34ce5be04942 maint: Style check C++ code in libinterp/. Rik <rik@octave.org> parents: 22331 diff changeset	380 { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	381
22869 f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	382 // No copying!
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	383
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	384 ft_text_renderer (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	385
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	386 ft_text_renderer& operator = (const ft_text_renderer&) = delete;
f75d289645ec make deleted functions public John W. Eaton <jwe@octave.org> parents: 22868 diff changeset	387
22868 87e3163f6c87 use c++11 "= default" syntax for declaration of trivial destructors John W. Eaton <jwe@octave.org> parents: 22865 diff changeset	388 ~ft_text_renderer (void) = default;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	389
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	390 void visit (text_element_string& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	391
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	392 void visit (text_element_list& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	393
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	394 void visit (text_element_subscript& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	395
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	396 void visit (text_element_superscript& e);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	397
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	398 void visit (text_element_color& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	399
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	400 void visit (text_element_fontsize& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	401
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	402 void visit (text_element_fontname& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	403
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	404 void visit (text_element_fontstyle& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	405
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	406 void visit (text_element_symbol& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	407
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	408 void visit (text_element_combined& e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	409
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	410 void reset (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	411
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	412 uint8NDArray get_pixels (void) const { return pixels; }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	413
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	414 Matrix get_boundingbox (void) const { return bbox; }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	415
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	416 uint8NDArray render (text_element *elt, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	417 int rotation = ROTATION_0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	418
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	419 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	420 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	421 const caseless_str& interpreter);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	422
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	423 void set_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	424 const std::string& angle, double size);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	425
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	426 void set_color (const Matrix& c);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	427
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	428 void set_mode (int m);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	429
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	430 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	431 uint8NDArray& pxls, Matrix& bbox,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	432 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	433 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	434 bool handle_rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	435
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	436 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	437
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	438 int rotation_to_mode (double rotation) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	439
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	440 // 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	441 // 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	442
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	443 class ft_font : public text_renderer::font
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	444 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	445 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	446
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	447 ft_font (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	448 : text_renderer::font (), face (nullptr) { }
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	449
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	450 ft_font (const 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	451 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	452 : 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	453 { }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	454
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	455 ft_font (const ft_font& ft);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	456
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	457 ~ft_font (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	458 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	459 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	460 FT_Done_Face (face);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	461 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	462
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	463 ft_font& operator = (const ft_font& ft);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	464
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	465 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	466
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	467 FT_Face get_face (void) const;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	468
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	469 private:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	470
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	471 mutable FT_Face face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	472 };
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	473
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	474 void push_new_line (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	475
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	476 void update_line_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	477
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	478 void compute_bbox (void);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	479
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	480 int compute_line_xoffset (const Matrix& lb) const;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	481
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	482 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	483
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	484 public:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	485
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	486 void text_to_strlist (const std::string& txt,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	487 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	488 int halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	489 const caseless_str& interp);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	490
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	491 private:
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	492
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	493 // The current font used by the renderer.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	494 ft_font font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	495
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	496 // 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	497 // 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	498 // 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	499 // 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	500 // 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	501 Matrix bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	502
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	503 // 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	504 // 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	505 uint8NDArray pixels;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	506
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	507 // 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	508 // multiline text properly.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	509 std::list<Matrix> line_bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	510
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	511 // 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	512 int halign;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	513
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	514 // The X offset for the next glyph.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	515 int xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	516
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	517 // 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	518 int line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	519
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	520 // The 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	521 // 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	522 // line_yoffset + yoffset.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	523 int yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	524
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	525 // 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	526 int mode;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	527
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	528 // The base color of the rendered text.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	529 uint8NDArray color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	530
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	531 // 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	532 std::list<text_renderer::string> strlist;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	533
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	534 // 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	535 int line_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	536
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	537 };
67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	538
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	539 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	540 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	541 const std::string& angle, double size)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	542 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	543 // FIXME: take "fontunits" into account
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	544
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23696 diff changeset	545 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	546 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	547
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	548 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	549 ft_text_renderer::push_new_line (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	550 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	551 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	552 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	553 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	554 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	555 // 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	556
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	557 FT_Face face = font.get_face ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	558
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	559 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	560 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	561 int asc = face->size->metrics.ascender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	562 int desc = face->size->metrics.descender >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	563 int h = face->size->metrics.height >> 6;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	564
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	565 Matrix bb (1, 5, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	566
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	567 bb(1) = desc;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	568 bb(3) = asc - desc;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	569 bb(4) = h;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	570
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	571 line_bbox.push_back (bb);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	572
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	573 xoffset = yoffset = 0;
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	576 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	577
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	578 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	579 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	580 // 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	581 // 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	582
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	583 Matrix old_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	584 line_bbox.pop_front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	585 Matrix new_bbox = line_bbox.front ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	586
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	587 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	588 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	589 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	590 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	591 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	592 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	593 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	594
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	595 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	596 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	597 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	598 if (! bbox.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	599 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	600 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	601 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	602 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	603 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	604 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	605 return (bbox(2) - lb(2)) / 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	606 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	607 return (bbox(2) - lb(2));
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	611 return 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	612 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	613
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	614 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	615 ft_text_renderer::compute_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	616 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	617 // 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	618 // bounding box for the entire text string.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	619
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	620 bbox = Matrix ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	621
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	622 switch (line_bbox.size ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	623 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	624 case 0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	625 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	626
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	627 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	628 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	629 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	630
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	631 default:
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	632 for (const auto& lbox : line_bbox)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	633 {
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	634 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	635 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	636 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	637 {
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	638 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	639 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	640 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	641 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	642 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	643 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	644 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	645 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	646
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	647 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	648 ft_text_renderer::update_line_bbox (void)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	649 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	650 // 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	651 // 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	652 // 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	653 // the line's baseline.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	654
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	655 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	656 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	657 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	658 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	659
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	660 Matrix& bb = line_bbox.back ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	661
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	662 if ((yoffset + desc) < bb(1))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	663 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	664 // 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	665
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	666 int delta = bb(1) - (yoffset + desc);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	667
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	668 bb(1) -= delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	669 bb(3) += delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	670 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	671
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	672 if ((yoffset + asc) > (bb(1) + bb(3)))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	673 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	674 // 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	675
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	676 int delta = (yoffset + asc) - (bb(1) + bb(3));
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	677
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	678 bb(3) += delta;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	683 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	684 ft_text_renderer::set_mode (int m)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	685 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	686 mode = m;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	687
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	688 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	689 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	690 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	691 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	692 bbox = Matrix (1, 4, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	693 line_bbox.clear ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	694 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	695 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	696
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	697 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	698 if (bbox.numel () != 4)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	699 {
22515 77b50a83ec11 Error out, rather than segfault, when fontname is "" (bug #49102). Rik <rik@octave.org> parents: 22407 diff changeset	700 ::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	701
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	702 xoffset = line_yoffset = yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	703 pixels = uint8NDArray ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	704 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	705 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	706 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	707 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	708 octave_idx_type (bbox(3)));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	709 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	710 xoffset = compute_line_xoffset (line_bbox.front ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	711 line_yoffset = -bbox(1)-1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	712 yoffset = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	713 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	714 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	715
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	716 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	717 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	718 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	719 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	720 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	721
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	722 FT_UInt
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	723 ft_text_renderer::process_character (FT_ULong code, FT_UInt previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	724 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	725 FT_Face face = font.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	726 FT_UInt glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	727
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	728 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	729 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	730 glyph_index = FT_Get_Char_Index (face, code);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	731
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	732 if (code != '\n'
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	733 && (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	734 \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	735 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	736 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	737 warn_missing_glyph (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	738 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	739 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	740 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	741 switch (mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	742 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	743 case MODE_RENDER:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	744 if (code == '\n')
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	745 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	746 glyph_index = FT_Get_Char_Index (face, ' ');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	747 if (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	748 \|\| 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	749 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	750 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	751 warn_missing_glyph (' ');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	752 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	753 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	754 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	755 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	756 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	757 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	758 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	759 warn_glyph_render (code);
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 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	762 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	763 FT_Bitmap& bitmap = face->glyph->bitmap;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	764 int x0, y0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	765
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	766 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	767 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	768 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	769
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	770 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	771 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	772 xoffset += (delta.x >> 6);
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	775 x0 = xoffset + face->glyph->bitmap_left;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	776 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	777
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	778 // 'w' seems to have a negative -1
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	779 // face->glyph->bitmap_left, this is so we don't
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	780 // index out of bound, and assumes we've allocated
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	781 // the right amount of horizontal space in the bbox.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	782 if (x0 < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	783 x0 = 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	784
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	785 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	786 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	787 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	788 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	789 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	790 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3 ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	791 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	792 //::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	793 // 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	794 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	795 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	796 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	797 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	798 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	799 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	800 pixels(3, x0+c, y0-r) = pix;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	801 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	802 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	803
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	804 xoffset += (face->glyph->advance.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	805 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	806 break;
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 case MODE_BBOX:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	809 if (code == '\n')
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	810 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	811 glyph_index = FT_Get_Char_Index (face, ' ');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	812 if (! glyph_index
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	813 \|\| 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	814 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	815 glyph_index = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	816 warn_missing_glyph (' ');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	817 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	818 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	819 push_new_line ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	820 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	821 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	822 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	823 Matrix& bb = line_bbox.back ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	824
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	825 // If we have a previous glyph, use kerning information.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	826 // This usually means moving a bit backward before adding
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	827 // the next glyph. That is, "delta.x" is usually < 0.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	828 if (previous)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	829 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	830 FT_Vector delta;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	831
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	832 FT_Get_Kerning (face, previous, glyph_index,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	833 FT_KERNING_DEFAULT, &delta);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	834
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	835 xoffset += (delta.x >> 6);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	836 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	837
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	838 // Extend current X offset box by the width of the current
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	839 // glyph. Then extend the line bounding box if necessary.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	840
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	841 xoffset += (face->glyph->advance.x >> 6);
23696 08036a7f3660 remove octave:: namespace tag from symbols used inside octave namespace John W. Eaton <jwe@octave.org> parents: 23577 diff changeset	842 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	843 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	844 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	845 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	846 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	847 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	848
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	849 return glyph_index;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	850 }
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 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	853 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	854 std::list<text_renderer::string>& lst,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	855 Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	856 int ha, int va, double rot,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	857 const caseless_str& interp)
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 uint8NDArray pxls;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	860
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	861 // 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	862
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	863 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	864
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	865 lst = strlist;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	866 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	867
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	868 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	869 ft_text_renderer::visit (text_element_string& e)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	870 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	871 if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	872 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	873 FT_UInt glyph_index, previous = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	874
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	875 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	876 size_t n;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	877 // 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	878 uint32_t *u32_str;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	879 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	880 if (! u32_str)
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	881 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	882 std::strerror (errno));
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	883 size_t curr = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	884 size_t idx = 0;
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	885 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	886 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	887 std::vector<double> xdata;
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	888
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	889 while (n > 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	890 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	891 n -= 1;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	892
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	893 if (u32_str[curr] == 10)
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 // 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	896 // the newline character
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	897 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	898 fs.set_color (color);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	899 // 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	900 // 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	901 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	902 if (! s.empty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	903 {
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	904 fs.set_string (s);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	905 fs.set_xdata (xdata);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	906 fs.set_family (fname);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	907 strlist.push_back (fs);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	908 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	909 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	910 else
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	911 xdata.push_back (xoffset);
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	912
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	913 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	914
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	915
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	916 if (u32_str[curr] == 10)
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 previous = 0;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	919 // 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	920 idx = curr+1;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	921 xdata.clear ();
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	922 // 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	923 // 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	924 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	925 line_xoffset, yoffset);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	926 }
25362 def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	927 else
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	928 previous = glyph_index;
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	929
def1b446ba64 Convert strings to UTF-32 for FreeType (bug #53646). Markus Mützel <markus.muetzel@gmx.de> parents: 25336 diff changeset	930 curr += 1;
22331 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 if (! fs.get_string ().empty ())
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 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	936 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	937 fs.set_xdata (xdata);
1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	938 fs.set_family (fname);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	939 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	940 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	941 }
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	944 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	945 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	946 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	947 // 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	948
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	949 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	950 uint8NDArray saved_color (color);
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	953
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	954 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	955 color = saved_color;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	956 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	957
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	958 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	959 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	960 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	961 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	962 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	963 int saved_yoffset = yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	964
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	965 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	966 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	967
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	968 if (font.is_valid ())
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 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	971
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	972 // 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	973 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	974 yoffset -= (h * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	975
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	976 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	977 update_line_bbox ();
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	981
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	982 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	983 // 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	984 // 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	985 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	986 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	987 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	988
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	989 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	990 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	991 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	992 ft_font saved_font (font);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	993 int saved_line_yoffset = line_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	994 int saved_yoffset = yoffset;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	995
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	996 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	997 font.get_size () - 2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	998
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	999 if (saved_font.is_valid ())
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 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	1002
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1003 // 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	1004 // decent result.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1005 yoffset += (s_asc * 2) / 3;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1006
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1007 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1008 update_line_bbox ();
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 text_processor::visit (e);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1012
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1013 font = saved_font;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1014 // 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	1015 // 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	1016 if (line_yoffset == saved_line_yoffset)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1017 yoffset = saved_yoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1018 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1019
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1020 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1021 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	1022 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1023 if (mode == MODE_RENDER)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1024 set_color (e.get_color ());
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1025 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1026
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1027 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1028 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	1029 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1030 double sz = e.get_fontsize ();
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 // 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	1033 // in the text object FontUnit.
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 (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	1036
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1037 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1038 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1039 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1040
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1041 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1042 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	1043 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1044 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	1045 font.get_size ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1046
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1047 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1048 update_line_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1049 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1050
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1051 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1052 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	1053 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1054 switch (e.get_fontstyle ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1055 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1056 case text_element_fontstyle::normal:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1057 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	1058 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1059
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1060 case text_element_fontstyle::bold:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1061 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	1062 break;
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 case text_element_fontstyle::italic:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1065 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	1066 break;
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 case text_element_fontstyle::oblique:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1069 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	1070 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1071 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1072
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1073 if (mode == MODE_BBOX)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1074 update_line_bbox ();
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1077 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1078 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	1079 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1080 uint32_t code = e.get_symbol_code ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1081
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1082 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	1083 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	1084
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1085 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	1086 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1087 process_character (code);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1088 fs.set_code (code);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1089 fs.set_xdata (xdata);
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1090 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1091 else if (font.is_valid ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1092 ::warning ("ignoring unknown symbol: %d", e.get_symbol ());
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1093
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1094 if (fs.get_code ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1095 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1096 fs.set_y (line_yoffset + yoffset);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1097 fs.set_color (color);
24076 1b7e49a72c62 improve text rendering in svg printout (bug #48567) Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23807 diff changeset	1098 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	1099 strlist.push_back (fs);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1100 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1101 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1102
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1103 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1104 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	1105 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1106 int saved_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1107 int max_xoffset = xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1108
22862 e365e87371a3 maint: Use C++ range feature to simplify some for loops in libinterp/corefcn. Rik <rik@octave.org> parents: 22755 diff changeset	1109 for (auto *txt_elt : e)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1110 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1111 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	1112 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	1113 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	1114 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1115
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1116 xoffset = max_xoffset;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1117 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1118
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1119 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1120 ft_text_renderer::reset (void)
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 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1123 set_color (Matrix (1, 3, 0.0));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1124 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1125
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1126 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1127 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	1128 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1129 if (c.numel () == 3)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1130 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1131 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	1132 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	1133 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	1134 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1135 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1136 ::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	1137 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1138
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1139 uint8NDArray
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1140 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	1141 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1142 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1143 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1144 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1145 box = bbox;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1146
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1147 set_mode (MODE_RENDER);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1148 // Clear the list of parsed strings
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1149 strlist.clear ();
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 if (pixels.numel () > 0)
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 elt->accept (*this);
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1154
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1155 switch (rotation)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1156 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1157 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1158 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1159
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1160 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1161 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1162 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	1163 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1164 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1165 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1166 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1167
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1168 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	1169 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1170 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	1171 idx(2) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1172 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1173 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1174 break;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1175
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1176 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1177 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1178 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	1179 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1180 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	1181 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	1182 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1183 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1184 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1185
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1186 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1187 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1188 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	1189 perm(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1190 perm(1) = 2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1191 perm(2) = 1;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1192 pixels = pixels.permute (perm);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1193
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1194 Array<idx_vector> idx (dim_vector (3, 1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1195 idx(0) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1196 idx(1) = idx_vector (':');
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1197 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	1198 pixels = uint8NDArray (pixels.index (idx));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1199 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1200 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1201 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1202 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1203
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1204 return pixels;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1207 // Note:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1208 // x-extent accurately measures width of glyphs.
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1209 // 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	1210 // 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	1211
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1212 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1213 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	1214 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1215 set_mode (MODE_BBOX);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1216 elt->accept (*this);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1217 compute_bbox ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1218
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1219 Matrix extent (1, 2, 0.0);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1220
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1221 switch (rotation_to_mode (rotation))
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1222 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1223 case ROTATION_0:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1224 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1225 extent(0) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1226 extent(1) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1227 break;
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 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1230 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1231 extent(0) = bbox(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1232 extent(1) = bbox(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1233 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1234
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1235 return extent;
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
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1238 Matrix
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1239 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	1240 const caseless_str& interpreter)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1241 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1242 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	1243 Matrix extent = get_extent (elt, rotation);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1244 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1245
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1246 return extent;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1247 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1248
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1249 int
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1250 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	1251 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1252 // Clip rotation to range [0, 360]
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1253 while (rotation < 0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1254 rotation += 360.0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1255 while (rotation > 360.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1256 rotation -= 360.0;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1257
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1258 if (rotation == 0.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1259 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1260 else if (rotation == 90.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1261 return ROTATION_90;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1262 else if (rotation == 180.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1263 return ROTATION_180;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1264 else if (rotation == 270.0)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1265 return ROTATION_270;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1266 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1267 return ROTATION_0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1268 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1269
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1270 void
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1271 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	1272 uint8NDArray& pxls, Matrix& box,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1273 int _halign, int valign, double rotation,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1274 const caseless_str& interpreter,
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1275 bool handle_rotation)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1276 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1277 int rot_mode = rotation_to_mode (rotation);
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 halign = _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 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	1282 pxls = render (elt, box, rot_mode);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1283 delete elt;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1284
23577 80c42f4cca13 maint: Deprecate is_empty and replace with isempty. Rik <rik@octave.org> parents: 23462 diff changeset	1285 if (pxls.isempty ())
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1286 return; // nothing to render
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1287
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1288 switch (halign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1289 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1290 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1291 box(0) = -box(2)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1292 break;
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 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1295 box(0) = -box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1296 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1297
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1298 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1299 box(0) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1300 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1301 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1302
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1303 switch (valign)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1304 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1305 case 1:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1306 box(1) = -box(3)/2;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1307 break;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	1308
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1309 case 2:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1310 box(1) = -box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1311 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1312
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1313 case 3:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1314 break;
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 case 4:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1317 box(1) = -box(3)-box(1);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1318 break;
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 default:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1321 box(1) = 0;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1322 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1323 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1324
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1325 if (handle_rotation)
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1326 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1327 switch (rot_mode)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1328 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1329 case ROTATION_90:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1330 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1331 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1332 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1333 break;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1334
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1335 case ROTATION_180:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1336 box(0) = -box(0)-box(2);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1337 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1338 break;
17271 cb7233cfbf43 Prepare base text rendering code for full TeX support. Michael Goffioul <michael.goffioul@gmail.com> parents: 17270 diff changeset	1339
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1340 case ROTATION_270:
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1341 std::swap (box(0), box(1));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1342 std::swap (box(2), box(3));
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1343 box(1) = -box(1)-box(3);
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1344 break;
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 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1347 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1348
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1349 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	1350 : text_renderer::font (ft), face (nullptr)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1351 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1352 #if defined (HAVE_FT_REFERENCE_FACE)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1353 FT_Face ft_face = ft.get_face ();
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1354
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1355 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	1356 face = ft_face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1357 #endif
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1358 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1359
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1360 ft_text_renderer::ft_font&
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1361 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	1362 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1363 if (&ft != this)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1364 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1365 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	1366
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1367 if (face)
175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1368 {
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1369 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	1370 face = nullptr;
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	1371 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1372
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1373 #if defined (HAVE_FT_REFERENCE_FACE)
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1374 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	1375
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1376 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	1377 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	1378 #endif
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1379 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1380
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1381 return *this;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1382 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1383
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1384 FT_Face
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1385 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	1386 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1387 if (! face && ! name.empty ())
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1388 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1389 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	1390
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1391 if (face)
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1392 {
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1393 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	1394 ::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	1395 }
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1396 else
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1397 ::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	1398 }
17330 219552139c18 Allow to compile with older freetype on RHEL5 (bug #39823). Michael Goffioul <michael.goffioul@gmail.com> parents: 17327 diff changeset	1399
22331 b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1400 return face;
b81b08cc4c83 maint: Indent namespaces in more files. John W. Eaton <jwe@octave.org> parents: 22326 diff changeset	1401 }
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1402 }
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1403
20945 9d9270e2f98f eliminate comments after preprocessor conditionals John W. Eaton <jwe@octave.org> parents: 20715 diff changeset	1404 #endif
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1405
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1406 namespace octave
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1407 {
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1408 base_text_renderer *
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1409 make_ft_text_renderer (void)
71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1410 {
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1411 #if defined (HAVE_FREETYPE)
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1412 return new ft_text_renderer ();
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1413 #else
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1414 return 0;
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1415 #endif
22326 71dd9d5a5ecd move more new classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22323 diff changeset	1416 }
21209 67d2965af0b5 revamp text rendering classes John W. Eaton <jwe@octave.org> parents: 21200 diff changeset	1417 }

Mercurial > octave

annotate libinterp/corefcn/ft-text-renderer.cc @ 25362:def1b446ba64