octave: libinterp/corefcn/txt-eng-ft.cc annotate

annotate libinterp/corefcn/txt-eng-ft.cc @ 17269:5b088598df1d

Add simple TeX parser based on flex/bison. * libinterp/corefcn/oct-tex-lexer.ll, libinterp/corefcn/oct-tex-pareser.yy: New files. * libinterp/Makefile.am (BUILT_SOURCES): Add oct-tex-lexer.cc and oct-tex-parser.cc. * libinterp/corefcn/modules.mk (corefcn/oct-tex-lexer.cc, corefcn/oct-tex-parser.h): New rules. * libinterp/corefcn/txt-eng-ft.h (ft_render::text_to_pixels, ft_render::get_extent): Add interpreter argument. * libinterp/corefcn/txt-eng-ft.cc (ft_render::text_to_pixels, ft_render::get_extent): Likewise. Use text_parser::parse(). * libinterp/corefcn/gl-render.cc (opengl_renderer::text_to_pixels): Use new interpreter argument. * libinterp/corefcn/graphics.cc (axes::properties::get_ticklabel_extents): Likewise. (uicontrol::properties::update_text_extent): Use text_parser::parse. * libinterp/corefcn/txt-eng.h (memory, string, caseless-str.h, dMatrix.h): New includes. (class text_element_subscript): Renamed from text_subscript_element. (class text_element_supserscript): Renamed from text_superscript_element. (class text_element_symbol, class text_element_fontstyle, class text_element_fontname, class text_element_fontsize, class text_element_color): New classes. (text_element_list::text_element_list(text_element*)): New constructor. (text_element_subscript::text_element_subscript(text_element*), text_element_subscript::text_element::subscript(char)): New constructors. (text_element_subscript::elem): New member. (text_element_subscript::get_element): New method. Returns it. (text_element_subscript::~text_element_subscript): New destructor. Delete it. (text_element_subscript::text_element_subscript()): Make default constructor private. (text_element_superscript::text_element_superscript(text_element*), text_element_superscript::text_element::superscript(char)): New constructors. (text_element_superscript::elem): New member. (text_element_superscript::get_element): New method. Returns it. (text_element_superscript::~text_element_superscript): New destructor. Delete it. (text_element_superscript::text_element_superscript()): Make default constructor private. (text_processor::visit(text_element_symbol), text_processor::visit(text_element_fontstyle), text_processor::visit(text_element_fontname), text_processor::visit(text_element_fontsize), text_processor::visit(text_element_color)): New methods. (text_parser::parse): New static method. (class text_parser_tex): New class.

author	Michael Goffioul <michael.goffioul@gmail.com>
date	Sun, 18 Aug 2013 16:36:38 -0400
parents	68fc671a9339
children	ba865ea9c7e9

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
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 14003 diff changeset	3 Copyright (C) 2009-2012 Michael Goffioul
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	4
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	5 This file is part of Octave.
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	6
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	8 under the terms of the GNU General Public License as published by the
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	10 option) any later version.
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	11
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	15 for more details.
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	16
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	17 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	18 along with Octave; see the file COPYING. If not, see
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	19 <http://www.gnu.org/licenses/>.
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	20
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 #ifdef HAVE_CONFIG_H
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	24 #include <config.h>
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	25 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	26
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	27 #if defined (HAVE_FREETYPE)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	28
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	29 #if defined (HAVE_FONTCONFIG)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	30 #include <fontconfig/fontconfig.h>
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	31 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	32
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	33 #include <iostream>
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	34
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	35 #include "singleton-cleanup.h"
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	36
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	37 #include "error.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	38 #include "pr-output.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	39 #include "txt-eng-ft.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	40
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	41 // FIXME -- maybe issue at most one warning per glyph/font/size/weight
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	42 // combination.
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	43
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	44 static void
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	45 gripe_missing_glyph (char c)
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	46 {
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	47 warning_with_id ("Octave:missing-glyph",
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	48 "ft_render: skipping missing glyph for character '%c'",
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	49 c);
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	50 }
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	51
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	52 static void
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	53 gripe_glyph_render (char c)
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	54 {
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	55 warning_with_id ("Octave:glyph-render",
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	56 "ft_render: unable to render glyph for character '%c'",
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	57 c);
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	58 }
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	59
13730 a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	60 #ifdef _MSC_VER
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	61 // This is just a trick to avoid multiply symbols definition.
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	62 // PermMatrix.h contains a dllexport'ed Array<octave_idx_type>
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	63 // that will make MSVC not to generate new instantiation and
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	64 // use the imported one.
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	65 #include "PermMatrix.h"
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	66 #endif
a2c74b5c02de [MSVC] Prevent duplicate symbol. Michael Goffioul <michael.goffioul@gmail.com> parents: 13317 diff changeset	67
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	68 class
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	69 ft_manager
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	70 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	71 public:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	72 static bool instance_ok (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	73 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	74 bool retval = true;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	75
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	76 if (! instance)
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	77 {
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	78 instance = new ft_manager ();
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	79
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	80 if (instance)
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	81 singleton_cleanup_list::add (cleanup_instance);
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	82 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	83
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	84 if (! instance)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	85 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	86 ::error ("unable to create ft_manager!");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	87
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	88 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	89 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	90
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	91 return retval;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	92 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	93
13992 e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	94 static void cleanup_instance (void) { delete instance; instance = 0; }
e1f76bfe0452 apply singleton_cleanup to a few more classes John W. Eaton <jwe@octave.org> parents: 13730 diff changeset	95
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	96 static FT_Face get_font (const std::string& name, const std::string& weight,
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	97 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	98 { return (instance_ok ()
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	99 ? instance->do_get_font (name, weight, angle, size)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	100 : 0); }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	101
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	102 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	103
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	104 static ft_manager *instance;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	105
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	106 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	107
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	108 // No copying!
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	109
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	110 ft_manager (const ft_manager&);
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	111
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	112 ft_manager& operator = (const ft_manager&);
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	113
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	114 ft_manager (void)
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	115 : library (), freetype_initialized (false), fontconfig_initialized (false)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	116 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	117 if (FT_Init_FreeType (&library))
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	118 ::error ("unable to initialize freetype library");
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	119 else
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	120 freetype_initialized = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	121
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	122 #if defined (HAVE_FONTCONFIG)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	123 if (! FcInit ())
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	124 ::error ("unable to initialize fontconfig library");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	125 else
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	126 fontconfig_initialized = true;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	127 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	128 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	129
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	130 ~ft_manager (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	131 {
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	132 if (freetype_initialized)
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	133 FT_Done_FreeType (library);
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	134
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	135 #if defined (HAVE_FONTCONFIG)
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	136 // FIXME -- Skip the call to FcFini because it can trigger the
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	137 // assertion
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	138 //
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	139 // octave: fccache.c:507: FcCacheFini: Assertion 'fcCacheChains[i] == ((void *)0)' failed.
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	140 //
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	141 // if (fontconfig_initialized)
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	142 // FcFini ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	143 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	144 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	145
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	146
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	147 FT_Face do_get_font (const std::string& name, const std::string& weight,
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	148 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	149 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	150 FT_Face retval = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	151
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	152 std::string file;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	153
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	154 #if defined (HAVE_FONTCONFIG)
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	155 if (fontconfig_initialized)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	156 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	157 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	158
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	159 if (weight == "bold")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	160 fc_weight = FC_WEIGHT_BOLD;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	161 else if (weight == "light")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	162 fc_weight = FC_WEIGHT_LIGHT;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	163 else if (weight == "demi")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	164 fc_weight = FC_WEIGHT_DEMIBOLD;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	165 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	166 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	167
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	168 if (angle == "italic")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	169 fc_angle = FC_SLANT_ITALIC;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	170 else if (angle == "oblique")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	171 fc_angle = FC_SLANT_OBLIQUE;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	172 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	173 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	174
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	175 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	176
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	177 FcPatternAddString (pat, FC_FAMILY,
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	178 (reinterpret_cast<const FcChar8*>
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	179 (name == "*" ? "sans" : name.c_str ())));
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	180
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	181 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	182 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	183 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	184
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	185 if (FcConfigSubstitute (0, pat, FcMatchPattern))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	186 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	187 FcResult res;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	188 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	189
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	190 FcDefaultSubstitute (pat);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	191 match = FcFontMatch (0, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	192
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	193 // FIXME -- originally, this test also required that
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	194 // res != FcResultNoMatch. Is that really needed?
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	195 if (match)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	196 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	197 unsigned char *tmp;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	198
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	199 FcPatternGetString (match, FC_FILE, 0, &tmp);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	200 file = reinterpret_cast<char*> (tmp);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	201 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	202 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	203 ::warning ("could not match any font: %s-%s-%s-%g",
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	204 name.c_str (), weight.c_str (), angle.c_str (),
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	205 size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	206
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	207 if (match)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	208 FcPatternDestroy (match);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	209 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	210
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	211 FcPatternDestroy (pat);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	212 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	213 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	214
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	215 if (file.empty ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	216 {
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	217 #ifdef __WIN32__
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	218 file = "C:/WINDOWS/Fonts/verdana.ttf";
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	219 #else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	220 // FIXME: find a "standard" font for UNIX platforms
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	221 #endif
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	222 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	223
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	224 if (! file.empty () && FT_New_Face (library, file.c_str (), 0, &retval))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	225 ::warning ("ft_manager: unable to load font: %s", file.c_str ());
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11570 diff changeset	226
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	227 return retval;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	228 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	229
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	230 private:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	231 FT_Library library;
14003 1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	232 bool freetype_initialized;
1555c5a177c9 better fix for fontconfig segfault John W. Eaton <jwe@octave.org> parents: 13999 diff changeset	233 bool fontconfig_initialized;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	234 };
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	235
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	236 ft_manager* ft_manager::instance = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	237
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	238 // ---------------------------------------------------------------------------
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	239
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	240 ft_render::ft_render (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	241 : text_processor (), face (0), bbox (1, 4, 0.0),
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	242 xoffset (0), yoffset (0), multiline_halign (0),
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	243 multiline_align_xoffsets (), mode (MODE_BBOX),
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	244 red (0), green (0), blue (0)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	245 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	246 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	247
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	248 ft_render::~ft_render (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	249 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	250 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	251 FT_Done_Face (face);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	252 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	253
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	254 void
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	255 ft_render::set_font (const std::string& name, const std::string& weight,
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	256 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	257 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	258 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	259 FT_Done_Face (face);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	260
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	261 // FIXME: take "fontunits" into account
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	262 face = ft_manager::get_font (name, weight, angle, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	263
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	264 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	265 {
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	266 if (FT_Set_Char_Size (face, 0, size*64, 0, 0))
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	267 ::warning ("ft_render: unable to set font size to %d", size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	268 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	269 else
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	270 ::warning ("ft_render: unable to load appropriate font");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	271 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	272
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	273 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	274 ft_render::set_mode (int m)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	275 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	276 mode = m;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	277
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	278 switch (mode)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	279 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	280 case MODE_BBOX:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	281 xoffset = yoffset = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	282 bbox = Matrix (1, 4, 0.0);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	283 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	284 case MODE_RENDER:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	285 if (bbox.numel () != 4)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	286 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	287 ::warning ("ft_render: invalid bounding box, cannot render");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	288
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	289 xoffset = yoffset = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	290 pixels = uint8NDArray ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	291 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	292 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	293 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	294 pixels = uint8NDArray (dim_vector (4, bbox(2), bbox(3)),
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	295 static_cast<uint8_t> (0));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	296 xoffset = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	297 yoffset = -bbox(1)-1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	298 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	299 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	300 default:
15466 d174210ce1ec use ' instead of ` in error messages, warnings and most comments John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	301 ::error ("ft_render: invalid mode '%d'", mode);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	302 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	303 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	304 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	305
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	306 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	307 ft_render::visit (text_element_string& e)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	308 {
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	309 if (face)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	310 {
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	311 int line_index = 0;
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	312 FT_UInt box_line_width = 0;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	313 std::string str = e.string_value ();
2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	314 FT_UInt glyph_index, previous = 0;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	315
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	316 if (mode == MODE_BBOX)
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	317 multiline_align_xoffsets.clear ();
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	318 else if (mode == MODE_RENDER)
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	319 xoffset += multiline_align_xoffsets[line_index];
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	320
10553 f88e3d5d88e2 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 10402 diff changeset	321 for (size_t i = 0; i < str.length (); i++)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	322 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	323 glyph_index = FT_Get_Char_Index (face, str[i]);
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	324
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	325 if (str[i] != '\n'
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	326 && (! glyph_index
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	327 \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	328 gripe_missing_glyph (str[i]);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	329 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	330 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	331 switch (mode)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	332 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	333 case MODE_RENDER:
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	334 if (str[i] == '\n')
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	335 {
14861 f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory Rik <octave@nomad.inbox5.com> parents: 14846 diff changeset	336 glyph_index = FT_Get_Char_Index (face, ' ');
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	337 if (!glyph_index \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	338 {
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	339 gripe_missing_glyph (' ');
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	340 }
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	341 else
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	342 {
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	343 line_index++;
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	344 xoffset = multiline_align_xoffsets[line_index];
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	345 yoffset -= (face->size->metrics.height >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	346 }
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	347 }
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	348 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL))
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	349 {
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	350 gripe_glyph_render (str[i]);
d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	351 }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	352 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	353 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	354 FT_Bitmap& bitmap = face->glyph->bitmap;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	355 int x0, y0;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	356
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	357 if (previous)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	358 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	359 FT_Vector delta;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	360
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	361 FT_Get_Kerning (face, previous, glyph_index, FT_KERNING_DEFAULT, &delta);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	362 xoffset += (delta.x >> 6);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	363 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	364
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	365 x0 = xoffset+face->glyph->bitmap_left;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	366 y0 = yoffset+face->glyph->bitmap_top;
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	367
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	368 // 'w' seems to have a negative -1
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	369 // face->glyph->bitmap_left, this is so we don't
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	370 // index out of bound, and assumes we we allocated
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	371 // the right amount of horizontal space in the bbox.
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	372 if (x0 < 0)
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	373 x0 = 0;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	374
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	375 for (int r = 0; r < bitmap.rows; r++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	376 for (int c = 0; c < bitmap.width; c++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	377 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	378 unsigned char pix = bitmap.buffer[r*bitmap.width+c];
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	379 if (x0+c < 0 \|\| x0+c >= pixels.dim2 ()
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	380 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3 ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	381 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	382 //::error ("out-of-bound indexing!!");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	383 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	384 else if (pixels(3, x0+c, y0-r).value () == 0)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	385 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	386 pixels(0, x0+c, y0-r) = red;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	387 pixels(1, x0+c, y0-r) = green;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	388 pixels(2, x0+c, y0-r) = blue;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	389 pixels(3, x0+c, y0-r) = pix;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	390 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	391 }
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	392
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	393 xoffset += (face->glyph->advance.x >> 6);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	394 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	395 break;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	396
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	397 case MODE_BBOX:
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	398 if (str[i] == '\n')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	399 {
14861 f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory Rik <octave@nomad.inbox5.com> parents: 14846 diff changeset	400 glyph_index = FT_Get_Char_Index (face, ' ');
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	401 if (! glyph_index
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	402 \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT))
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	403 {
13317 d2b799e3178a allow warnings about missing glyphs to be disabled John W. Eaton <jwe@octave.org> parents: 13141 diff changeset	404 gripe_missing_glyph (' ');
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	405 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	406 else
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	407 {
14861 f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory Rik <octave@nomad.inbox5.com> parents: 14846 diff changeset	408 multiline_align_xoffsets.push_back (box_line_width);
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	409 // Reset the pixel width for this newline, so we don't
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	410 // allocate a bounding box larger than the horizontal
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	411 // width of the multi-line
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	412 box_line_width = 0;
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	413 bbox(1) -= (face->size->metrics.height >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	414 }
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	415 }
e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	416 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	417 {
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	418 // width
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	419 if (previous)
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	420 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	421 FT_Vector delta;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	422
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	423 FT_Get_Kerning (face, previous, glyph_index,
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	424 FT_KERNING_DEFAULT, &delta);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	425
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	426 box_line_width += (delta.x >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	427 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	428
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	429 box_line_width += (face->glyph->advance.x >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	430
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	431 int asc, desc;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	432
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	433 if (false /tight/)
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	434 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	435 desc = face->glyph->metrics.horiBearingY - face->glyph->metrics.height;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	436 asc = face->glyph->metrics.horiBearingY;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	437 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	438 else
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	439 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	440 asc = face->size->metrics.ascender;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	441 desc = face->size->metrics.descender;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	442 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	443
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	444 asc = yoffset + (asc >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	445 desc = yoffset + (desc >> 6);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	446
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	447 if (desc < bbox(1))
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	448 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	449 bbox(3) += (bbox(1) - desc);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	450 bbox(1) = desc;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	451 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	452 if (asc > (bbox(3)+bbox(1)))
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	453 bbox(3) = asc-bbox(1);
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	454 if (bbox(2) < box_line_width)
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	455 bbox(2) = box_line_width;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	456 }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	457 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	458 }
12965 22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	459 if (str[i] == '\n')
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	460 previous = 0;
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	461 else
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	462 previous = glyph_index;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	463 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	464 }
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	465 if (mode == MODE_BBOX)
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	466 {
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	467 /* Push last the width associated with the last line */
14861 f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory Rik <octave@nomad.inbox5.com> parents: 14846 diff changeset	468 multiline_align_xoffsets.push_back (box_line_width);
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	469
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	470 for (unsigned int i = 0; i < multiline_align_xoffsets.size (); i++)
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	471 {
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	472 /* Center align */
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	473 if (multiline_halign == 1)
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	474 multiline_align_xoffsets[i] = (bbox(2) - multiline_align_xoffsets[i])/2;
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	475 /* Right align */
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	476 else if (multiline_halign == 2)
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	477 multiline_align_xoffsets[i] = (bbox(2) - multiline_align_xoffsets[i]);
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	478 /* Left align */
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	479 else
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	480 multiline_align_xoffsets[i] = 0;
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	481 }
6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	482 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	483 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	484 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	485
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	486 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	487 ft_render::reset (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	488 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	489 set_mode (MODE_BBOX);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	490 set_color (Matrix (1, 3, 0.0));
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	491 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	492
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	493 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	494 ft_render::set_color (Matrix c)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	495 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	496 if (c.numel () == 3)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	497 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	498 red = static_cast<uint8_t> (c(0)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	499 green = static_cast<uint8_t> (c(1)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	500 blue = static_cast<uint8_t> (c(2)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	501 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	502 else
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	503 ::warning ("ft_render::set_color: invalid color");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	504 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	505
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	506 uint8NDArray
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	507 ft_render::render (text_element* elt, Matrix& box, int rotation)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	508 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	509 set_mode (MODE_BBOX);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	510 elt->accept (*this);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	511 box = bbox;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	512
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	513 set_mode (MODE_RENDER);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	514 if (pixels.numel () > 0)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	515 {
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	516 elt->accept (*this);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	517
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	518 switch (rotation)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	519 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	520 case ROTATION_0:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	521 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	522 case ROTATION_90:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	523 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	524 Array<octave_idx_type> perm (dim_vector (3, 1));
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	525 perm(0) = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	526 perm(1) = 2;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	527 perm(2) = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	528 pixels = pixels.permute (perm);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	529
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	530 Array<idx_vector> idx (dim_vector (3, 1));
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	531 idx(0) = idx_vector (':');
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	532 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	533 idx(2) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	534 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	535 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	536 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	537 case ROTATION_180:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	538 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	539 Array<idx_vector> idx (dim_vector (3, 1));
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	540 idx(0) = idx_vector (':');
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	541 idx(1) = idx_vector (pixels.dim2 ()-1, -1, -1);
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	542 idx(2)= idx_vector (pixels.dim3 ()-1, -1, -1);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	543 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	544 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	545 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	546 case ROTATION_270:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	547 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	548 Array<octave_idx_type> perm (dim_vector (3, 1));
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	549 perm(0) = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	550 perm(1) = 2;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	551 perm(2) = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	552 pixels = pixels.permute (perm);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	553
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	554 Array<idx_vector> idx (dim_vector (3, 1));
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	555 idx(0) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	556 idx(1) = idx_vector (':');
14846 460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	557 idx(2) = idx_vector (pixels.dim3 ()-1, -1, -1);
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	558 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	559 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	560 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	561 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	562 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	563
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	564 return pixels;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	565 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	566
16201 2338a92e9782 Fix spacing between ylabel and y-axis (bug #38461) Rik <rik@octave.org> parents: 15467 diff changeset	567 // Note:
2338a92e9782 Fix spacing between ylabel and y-axis (bug #38461) Rik <rik@octave.org> parents: 15467 diff changeset	568 // x-extent accurately measures width of glyphs.
2338a92e9782 Fix spacing between ylabel and y-axis (bug #38461) Rik <rik@octave.org> parents: 15467 diff changeset	569 // y-extent is overly large because it is measured from baseline-to-baseline.
2338a92e9782 Fix spacing between ylabel and y-axis (bug #38461) Rik <rik@octave.org> parents: 15467 diff changeset	570 // Calling routines, such as ylabel, may need to account for this mismatch.
2338a92e9782 Fix spacing between ylabel and y-axis (bug #38461) Rik <rik@octave.org> parents: 15467 diff changeset	571
10402 9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	572 Matrix
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	573 ft_render::get_extent (text_element *elt, double rotation)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	574 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	575 set_mode (MODE_BBOX);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	576 elt->accept (*this);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	577
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	578 Matrix extent (1, 2, 0.0);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	579
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	580 switch (rotation_to_mode (rotation))
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	581 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	582 case ROTATION_0:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	583 case ROTATION_180:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	584 extent(0) = bbox(2);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	585 extent(1) = bbox(3);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	586 break;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	587 case ROTATION_90:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	588 case ROTATION_270:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	589 extent(0) = bbox(3);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	590 extent(1) = bbox(2);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	591 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	592
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	593 return extent;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	594 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	595
12334 63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	596 Matrix
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	597 ft_render::get_extent (const std::string& txt, double rotation,
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	598 const caseless_str& interpreter)
12334 63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	599 {
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	600 text_element *elt = text_parser::parse (txt, interpreter);
12334 63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	601 Matrix extent = get_extent (elt, rotation);
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	602 delete elt;
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	603
12334 63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	604 return extent;
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	605 }
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	606
10402 9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	607 int
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	608 ft_render::rotation_to_mode (double rotation) const
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	609 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	610 if (rotation == 0.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	611 return ROTATION_0;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	612 else if (rotation == 90.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	613 return ROTATION_90;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	614 else if (rotation == 180.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	615 return ROTATION_180;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	616 else if (rotation == 270.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	617 return ROTATION_270;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	618 else
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	619 return ROTATION_0;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	620 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	621
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	622 void
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	623 ft_render::text_to_pixels (const std::string& txt,
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	624 uint8NDArray& pixels_, Matrix& box,
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	625 int halign, int valign, double rotation,
5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	626 const caseless_str& interpreter)
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	627 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	628 // FIXME: clip "rotation" between 0 and 360
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	629 int rot_mode = rotation_to_mode (rotation);
13141 e81ddf9cacd5 maint: untabify and remove trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 12969 diff changeset	630
12969 6fc2c61660f2 Native multi-line text alignment. Vanya Sergeev <vsergeev@gmail.com> parents: 12965 diff changeset	631 multiline_halign = halign;
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	632
17269 5b088598df1d Add simple TeX parser based on flex/bison. Michael Goffioul <michael.goffioul@gmail.com> parents: 16892 diff changeset	633 text_element *elt = text_parser::parse (txt, interpreter);
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	634 pixels_ = render (elt, box, rot_mode);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	635 delete elt;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	636
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	637 if (pixels_.numel () == 0)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	638 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	639 // nothing to render
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	640 return;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	641 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	642
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	643 switch (halign)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	644 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	645 default: box(0) = 0; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	646 case 1: box(0) = -box(2)/2; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	647 case 2: box(0) = -box(2); break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	648 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	649 switch (valign)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	650 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	651 default: box(1) = 0; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	652 case 1: box(1) = -box(3)/2; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	653 case 2: box(1) = -box(3); break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	654 case 3: break;
16206 9ba5c5ed3aeb Add new verticalalignment option 'cap' for OpenGL plotting. Rik <rik@octave.org> parents: 16201 diff changeset	655 case 4: box(1) = -box(3)-box(1); break;
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	656 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	657
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	658 switch (rot_mode)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	659 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	660 case ROTATION_90:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	661 std::swap (box(0), box(1));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	662 std::swap (box(2), box(3));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	663 box(0) = -box(0)-box(2);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	664 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	665 case ROTATION_180:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	666 box(0) = -box(0)-box(2);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	667 box(1) = -box(1)-box(3);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	668 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	669 case ROTATION_270:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	670 std::swap (box(0), box(1));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	671 std::swap (box(2), box(3));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	672 box(1) = -box(1)-box(3);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	673 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	674 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	675 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	676
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	677 #endif // HAVE_FREETYPE

Mercurial > octave

annotate libinterp/corefcn/txt-eng-ft.cc @ 17269:5b088598df1d