octave-lyh: src/txt-eng-ft.cc annotate

annotate src/txt-eng-ft.cc @ 12965:22bc9ec80c2c

allow multi-line string property for text objects using cell arrays or char matrices * __axis_label__.m: Don't check type of txt argument. * __go_draw_axes__.m: Handle multi-line string property for text objects. * text.m: Likewise. * gl2ps-renderer.cc (glps_renderer::draw_text): Handle text::properties string property as octave_value object that can contain either a char array or cellstr object. * graphics.cc (axes::properties::update_xlabel_position, axes::properties::update_ylabel_position, axes::properties::update_zlabel_position, axes::properties::get_extent, text::properties::update_text_extent): Likewise. * graphics.h.in (text_label_property::do_set): Don't forget to set stored_type when value is a cell. (text::properties::get_string): Delete custom getter.

author	Ben Abbott <bpabbott@mac.com>
date	Mon, 15 Aug 2011 10:24:09 -0400
parents	63dc132a1000
children	6fc2c61660f2

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
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 11455 diff changeset	3 Copyright (C) 2009-2011 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
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	27 #if HAVE_FREETYPE
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	28
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	29 #if HAVE_FONTCONFIG
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
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	35 #include "error.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	36 #include "pr-output.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	37 #include "txt-eng-ft.h"
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	38
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	39 class
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	40 ft_manager
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	41 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	42 public:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	43 static bool instance_ok (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	44 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	45 bool retval = true;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	46
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	47 if (! instance)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	48 instance = new ft_manager ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	49
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	50 if (! instance)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	51 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	52 ::error ("unable to create ft_manager!");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	53
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	54 retval = false;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	55 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	56
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	57 return retval;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	58 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	59
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	60 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	61 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	62 { return (instance_ok ()
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	63 ? instance->do_get_font (name, weight, angle, size)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	64 : 0); }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	65
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	66 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	67
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	68 static ft_manager *instance;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	69
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	70 private:
12122 f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	71
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	72 // No copying!
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	73
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	74 ft_manager (const ft_manager&);
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	75
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	76 ft_manager& operator = (const ft_manager&);
f4689107dd8c Explicitly disallow copying in some classes. Pascal Dupuis <Pascal.Dupuis@uclouvain.be> parents: 11586 diff changeset	77
12225 cb4ac5e4d987 txt-eng-ft.cc (ft_manager::ft_manager): omit fc_init_done from init list if fontconfig is missing John W. Eaton <jwe@octave.org> parents: 12123 diff changeset	78 ft_manager (void) : library ()
cb4ac5e4d987 txt-eng-ft.cc (ft_manager::ft_manager): omit fc_init_done from init list if fontconfig is missing John W. Eaton <jwe@octave.org> parents: 12123 diff changeset	79 #if HAVE_FONTCONFIG
cb4ac5e4d987 txt-eng-ft.cc (ft_manager::ft_manager): omit fc_init_done from init list if fontconfig is missing John W. Eaton <jwe@octave.org> parents: 12123 diff changeset	80 , fc_init_done (false)
cb4ac5e4d987 txt-eng-ft.cc (ft_manager::ft_manager): omit fc_init_done from init list if fontconfig is missing John W. Eaton <jwe@octave.org> parents: 12123 diff changeset	81 #endif
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	82 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	83 if (FT_Init_FreeType (&library))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	84 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	85 ::error ("unable to initialize freetype library");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	86 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	87
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	88 #if HAVE_FONTCONFIG
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	89 fc_init_done = false;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	90 if (! FcInit ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	91 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	92 ::error ("unable to initialize fontconfig library");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	93 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	94 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	95 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	96 fc_init_done = true;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	97 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	98 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	99 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	100
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	101 ~ft_manager (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	102 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	103 #if HAVE_FONTCONFIG
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	104 FcFini ();
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	105 fc_init_done = false;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	106 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	107 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	108
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	109 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	110 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	111 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	112 FT_Face retval = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	113
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	114 std::string file;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	115
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	116 #if HAVE_FONTCONFIG
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	117 if (fc_init_done)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	118 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	119 int fc_weight, fc_angle;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	120
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	121 if (weight == "bold")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	122 fc_weight = FC_WEIGHT_BOLD;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	123 else if (weight == "light")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	124 fc_weight = FC_WEIGHT_LIGHT;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	125 else if (weight == "demi")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	126 fc_weight = FC_WEIGHT_DEMIBOLD;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	127 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	128 fc_weight = FC_WEIGHT_NORMAL;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	129
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	130 if (angle == "italic")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	131 fc_angle = FC_SLANT_ITALIC;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	132 else if (angle == "oblique")
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	133 fc_angle = FC_SLANT_OBLIQUE;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	134 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	135 fc_angle = FC_SLANT_ROMAN;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	136
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	137 FcPattern *pat = FcPatternCreate ();
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	138
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	139 FcPatternAddString (pat, FC_FAMILY,
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	140 (reinterpret_cast<const FcChar8*>
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	141 (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	142
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	143 FcPatternAddInteger (pat, FC_WEIGHT, fc_weight);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	144 FcPatternAddInteger (pat, FC_SLANT, fc_angle);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	145 FcPatternAddDouble (pat, FC_PIXEL_SIZE, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	146
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	147 if (FcConfigSubstitute (0, pat, FcMatchPattern))
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	148 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	149 FcResult res;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	150 FcPattern *match;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	151
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	152 FcDefaultSubstitute (pat);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	153 match = FcFontMatch (0, pat, &res);
9833 637fa784d102 Allow more font matches godfrey@isl.Stanford.EDU parents: 9619 diff changeset	154
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	155 // FIXME -- originally, this test also required that
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	156 // res != FcResultNoMatch. Is that really needed?
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	157 if (match)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	158 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	159 unsigned char *tmp;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	160
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	161 FcPatternGetString (match, FC_FILE, 0, &tmp);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	162 file = reinterpret_cast<char*> (tmp);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	163 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	164 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	165 ::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	166 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	167 size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	168
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	169 if (match)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	170 FcPatternDestroy (match);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	171 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	172
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	173 FcPatternDestroy (pat);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	174 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	175 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	176
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	177 if (file.empty ())
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	178 {
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	179 #ifdef __WIN32__
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	180 file = "C:/WINDOWS/Fonts/verdana.ttf";
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	181 #else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	182 // FIXME: find a "standard" font for UNIX platforms
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	183 #endif
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	184 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	185
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	186 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	187 ::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	188
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	189 return retval;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	190 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	191
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	192 private:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	193 FT_Library library;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	194 #if HAVE_FONTCONFIG
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	195 bool fc_init_done;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	196 #endif
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	197 };
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	198
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	199 ft_manager* ft_manager::instance = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	200
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	201 // ---------------------------------------------------------------------------
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	202
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	203 ft_render::ft_render (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	204 : text_processor (), face (0), bbox (1, 4, 0.0),
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	205 xoffset (0), yoffset (0), mode (MODE_BBOX),
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	206 red (0), green (0), blue (0)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	207 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	208 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	209
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	210 ft_render::~ft_render (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	211 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	212 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	213 FT_Done_Face (face);
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
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	216 void
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	217 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	218 const std::string& angle, double size)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	219 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	220 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	221 FT_Done_Face (face);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	222
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	223 // FIXME: take "fontunits" into account
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	224 face = ft_manager::get_font (name, weight, angle, size);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	225
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	226 if (face)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	227 {
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	228 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	229 ::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	230 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	231 else
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	232 ::warning ("ft_render: unable to load appropriate font");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	233 }
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 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	236 ft_render::set_mode (int m)
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 mode = m;
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 switch (mode)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	241 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	242 case MODE_BBOX:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	243 xoffset = yoffset = 0;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	244 bbox = Matrix (1, 4, 0.0);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	245 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	246 case MODE_RENDER:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	247 if (bbox.numel () != 4)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	248 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	249 ::warning ("ft_render: invalid bounding box, cannot render");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	250
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	251 xoffset = yoffset = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	252 pixels = uint8NDArray ();
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	253 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	254 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	255 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	256 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	257 static_cast<uint8_t> (0));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	258 xoffset = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	259 yoffset = -bbox(1)-1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	260 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	261 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	262 default:
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	263 ::error ("ft_render: invalid mode `%d'", mode);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	264 break;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	265 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	266 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	267
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	268 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	269 ft_render::visit (text_element_string& e)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	270 {
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	271 if (face)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	272 {
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	273 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	274 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	275 FT_UInt glyph_index, previous = 0;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	276
10553 f88e3d5d88e2 avoid GCC warnings John W. Eaton <jwe@octave.org> parents: 10402 diff changeset	277 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	278 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	279 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	280
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	281 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	282 && (! 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	283 \|\| FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT)))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	284 ::warning ("ft_render: skipping missing glyph for character `%c'",
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	285 str[i]);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	286 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	287 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	288 switch (mode)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	289 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	290 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	291 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	292 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	293 glyph_index = FT_Get_Char_Index(face, ' ');
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	294 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	295 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	296 ::warning ("ft_render: skipping missing glyph for character ` '");
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	297 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	298 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	299 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	300 xoffset = 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	301 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	302 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	303 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	304 else if (FT_Render_Glyph (face->glyph, FT_RENDER_MODE_NORMAL))
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	305 ::warning ("ft_render: unable to render glyph for character `%c'",
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	306 str[i]);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	307 else
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	308 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	309 FT_Bitmap& bitmap = face->glyph->bitmap;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	310 int x0, y0;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	311
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	312 if (previous)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	313 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	314 FT_Vector delta;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	315
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	316 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	317 xoffset += (delta.x >> 6);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	318 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	319
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	320 x0 = xoffset+face->glyph->bitmap_left;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	321 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	322
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	323 // '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	324 // 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	325 // 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	326 // 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	327 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	328 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	329
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	330 for (int r = 0; r < bitmap.rows; r++)
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	331 for (int c = 0; c < bitmap.width; c++)
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 unsigned char pix = bitmap.buffer[r*bitmap.width+c];
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	334 if (x0+c < 0 \|\| x0+c >= pixels.dim2()
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	335 \|\| y0-r < 0 \|\| y0-r >= pixels.dim3())
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	336 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	337 //::error ("out-of-bound indexing!!");
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	338 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	339 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	340 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	341 pixels(0, x0+c, y0-r) = red;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	342 pixels(1, x0+c, y0-r) = green;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	343 pixels(2, x0+c, y0-r) = blue;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	344 pixels(3, x0+c, y0-r) = pix;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	345 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	346 }
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	347
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	348 xoffset += (face->glyph->advance.x >> 6);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	349 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	350 break;
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	351
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	352 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	353 if (str[i] == '\n')
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	354 {
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	355 glyph_index = FT_Get_Char_Index(face, ' ');
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	356 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	357 \|\| 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	358 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	359 ::warning ("ft_render: skipping missing glyph for character ` '");
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	360 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	361 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	362 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	363 // 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	364 // 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	365 // width of the multi-line
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	366 box_line_width = 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	367 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	368 }
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 }
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 else
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	371 {
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	372 // 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	373 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	374 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	375 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	376
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	377 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	378 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	379
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	380 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	381 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	382
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	383 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	384
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	385 int asc, desc;
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	386
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	387 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	388 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	389 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	390 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	391 }
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	392 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	393 {
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices Ben Abbott <bpabbott@mac.com> parents: 12334 diff changeset	394 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	395 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	396 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	397
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 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	399 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	400
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 (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	402 {
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 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	404 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	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 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	407 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	408 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	409 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	410 }
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	411 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	412 }
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 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	414 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	415 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	416 previous = glyph_index;
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	417 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	418 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	419 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	420 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	421
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	422 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	423 ft_render::reset (void)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	424 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	425 set_mode (MODE_BBOX);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	426 set_color (Matrix (1, 3, 0.0));
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	427 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	428
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	429 void
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	430 ft_render::set_color (Matrix c)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	431 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	432 if (c.numel () == 3)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	433 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	434 red = static_cast<uint8_t> (c(0)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	435 green = static_cast<uint8_t> (c(1)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	436 blue = static_cast<uint8_t> (c(2)*255);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	437 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	438 else
9616 2093499ec9f4 avoid crash if default font can't be found John W. Eaton <jwe@octave.org> parents: 9406 diff changeset	439 ::warning ("ft_render::set_color: invalid color");
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	440 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	441
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	442 uint8NDArray
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	443 ft_render::render (text_element* elt, Matrix& box, int rotation)
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	444 {
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	445 set_mode (MODE_BBOX);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	446 elt->accept (*this);
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	447 box = bbox;
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	448
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	449 set_mode (MODE_RENDER);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	450 if (pixels.numel () > 0)
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	451 {
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	452 elt->accept (*this);
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	453
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	454 switch (rotation)
10315 57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	455 {
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	456 case ROTATION_0:
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 case ROTATION_90:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	459 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	460 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	461 perm(0) = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	462 perm(1) = 2;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	463 perm(2) = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	464 pixels = pixels.permute (perm);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	465
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	466 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	467 idx(0) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	468 idx(1) = idx_vector (pixels.dim2()-1, -1, -1);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	469 idx(2) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	470 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	471 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	472 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	473 case ROTATION_180:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	474 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	475 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	476 idx(0) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	477 idx(1) = idx_vector (pixels.dim2()-1, -1, -1);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	478 idx(2)= idx_vector (pixels.dim3()-1, -1, -1);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	479 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	480 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	481 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	482 case ROTATION_270:
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	483 {
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	484 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	485 perm(0) = 0;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	486 perm(1) = 2;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	487 perm(2) = 1;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	488 pixels = pixels.permute (perm);
9406 c0c23dbbade7 Improve error handling in text rendering. Michael Goffioul <michael.goffioul@gmail.com> parents: 9405 diff changeset	489
11570 57632dea2446 attempt better backward compatibility for Array constructors John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	490 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	491 idx(0) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	492 idx(1) = idx_vector (':');
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	493 idx(2) = idx_vector (pixels.dim3()-1, -1, -1);
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	494 pixels = uint8NDArray (pixels.index (idx));
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	495 }
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	496 break;
57a59eae83cc untabify src C++ source files John W. Eaton <jwe@octave.org> parents: 9833 diff changeset	497 }
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	498 }
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	499
4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	500 return pixels;
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
10402 9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	503 Matrix
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	504 ft_render::get_extent (text_element *elt, double rotation)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	505 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	506 set_mode (MODE_BBOX);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	507 elt->accept (*this);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	508
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	509 Matrix extent (1, 2, 0.0);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	510
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	511 switch (rotation_to_mode (rotation))
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	512 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	513 case ROTATION_0:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	514 case ROTATION_180:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	515 extent(0) = bbox(2);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	516 extent(1) = bbox(3);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	517 break;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	518 case ROTATION_90:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	519 case ROTATION_270:
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	520 extent(0) = bbox(3);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	521 extent(1) = bbox(2);
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	522 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	523
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	524 return extent;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	525 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	526
12334 63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	527 Matrix
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	528 ft_render::get_extent (const std::string& txt, double rotation)
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	529 {
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	530 text_element *elt = text_parser_none ().parse (txt);
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	531 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	532 delete elt;
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	533
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	534 return extent;
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	535 }
63dc132a1000 Move axes labels and title positioning to axes::properties Konstantinos Poulios <logari81@gmail.com> parents: 12225 diff changeset	536
10402 9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	537 int
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	538 ft_render::rotation_to_mode (double rotation) const
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	539 {
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	540 if (rotation == 0.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	541 return ROTATION_0;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	542 else if (rotation == 90.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	543 return ROTATION_90;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	544 else if (rotation == 180.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	545 return ROTATION_180;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	546 else if (rotation == 270.0)
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	547 return ROTATION_270;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	548 else
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	549 return ROTATION_0;
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	550 }
9f2bf537a651 Implement text extent property Michael Goffioul <michael.goffioul@gmail.com> parents: 10350 diff changeset	551
11455 2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	552 void
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	553 ft_render::text_to_pixels (const std::string& txt,
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	554 uint8NDArray& pixels_, Matrix& box,
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	555 int halign, int valign, double rotation)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	556 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	557 // FIXME: clip "rotation" between 0 and 360
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	558 int rot_mode = rotation_to_mode (rotation);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	559
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	560 text_element *elt = text_parser_none ().parse (txt);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	561 pixels_ = render (elt, box, rot_mode);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	562 delete elt;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	563
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	564 if (pixels_.numel () == 0)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	565 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	566 // nothing to render
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	567 return;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	568 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	569
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	570 switch (halign)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	571 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	572 default: box(0) = 0; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	573 case 1: box(0) = -box(2)/2; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	574 case 2: box(0) = -box(2); break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	575 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	576 switch (valign)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	577 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	578 default: box(1) = 0; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	579 case 1: box(1) = -box(3)/2; break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	580 case 2: box(1) = -box(3); break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	581 case 3: break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	582 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	583
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	584 switch (rot_mode)
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	585 {
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	586 case ROTATION_90:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	587 std::swap (box(0), box(1));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	588 std::swap (box(2), box(3));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	589 box(0) = -box(0)-box(2);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	590 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	591 case ROTATION_180:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	592 box(0) = -box(0)-box(2);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	593 box(1) = -box(1)-box(3);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	594 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	595 case ROTATION_270:
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	596 std::swap (box(0), box(1));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	597 std::swap (box(2), box(3));
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	598 box(1) = -box(1)-box(3);
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	599 break;
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	600 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	601 }
2be9e22796d2 improvements in text-extent calculation Konstantinos Poulios <logari81@googlemail.com> parents: 10553 diff changeset	602
9403 4af6e29449c1 [mq]: graphics_text_engine Michael Goffioul <michael.goffioul@gmail.com> parents: diff changeset	603 #endif // HAVE_FREETYPE

Mercurial > hg > octave-lyh

annotate src/txt-eng-ft.cc @ 12965:22bc9ec80c2c