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annotate libinterp/corefcn/gl2ps-renderer.cc @ 19593:446c46af4b42 stable

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strip trailing whitespace from most source files * Makefile.am, NEWS, build-aux/common.mk, configure.ac, doc/Makefile.am, doc/doxyhtml/Makefile.am, doc/interpreter/Makefile.am, doc/interpreter/arith.txi, doc/interpreter/audio.txi, doc/interpreter/basics.txi, doc/interpreter/bugs.txi, doc/interpreter/container.txi, doc/interpreter/cp-idx.txi, doc/interpreter/data.txi, doc/interpreter/debug.txi, doc/interpreter/diagperm.txi, doc/interpreter/diffeq.txi, doc/interpreter/doccheck/README, doc/interpreter/doccheck/spellcheck, doc/interpreter/emacs.txi, doc/interpreter/errors.txi, doc/interpreter/eval.txi, doc/interpreter/expr.txi, doc/interpreter/external.txi, doc/interpreter/fn-idx.txi, doc/interpreter/func.txi, doc/interpreter/geometry.txi, doc/interpreter/geometryimages.m, doc/interpreter/gpl.txi, doc/interpreter/grammar.txi, doc/interpreter/gui.txi, doc/interpreter/image.txi, doc/interpreter/install.txi, doc/interpreter/interp.txi, doc/interpreter/interpimages.m, 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examples/standalonebuiltin.cc, libgui/Makefile.am, libgui/qterminal/libqterminal/README, libgui/qterminal/libqterminal/unix/BlockArray.cpp, libgui/qterminal/libqterminal/unix/BlockArray.h, libgui/qterminal/libqterminal/unix/Character.h, libgui/qterminal/libqterminal/unix/CharacterColor.h, libgui/qterminal/libqterminal/unix/Emulation.cpp, libgui/qterminal/libqterminal/unix/Emulation.h, libgui/qterminal/libqterminal/unix/Filter.cpp, libgui/qterminal/libqterminal/unix/Filter.h, libgui/qterminal/libqterminal/unix/History.cpp, libgui/qterminal/libqterminal/unix/History.h, libgui/qterminal/libqterminal/unix/KeyboardTranslator.cpp, libgui/qterminal/libqterminal/unix/KeyboardTranslator.h, libgui/qterminal/libqterminal/unix/LineFont.h, libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp, libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h, libgui/qterminal/libqterminal/unix/Screen.cpp, libgui/qterminal/libqterminal/unix/Screen.h, libgui/qterminal/libqterminal/unix/ScreenWindow.cpp, libgui/qterminal/libqterminal/unix/ScreenWindow.h, libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.cpp, libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.h, libgui/qterminal/libqterminal/unix/Vt102Emulation.h, libgui/qterminal/libqterminal/win32/QWinTerminalImpl.cpp, libgui/qterminal/qterminal/main.cpp, libgui/src/m-editor/file-editor-tab.cc, libgui/src/octave-gui.cc, libgui/src/octave-qt-link.cc, libinterp/corefcn/data.cc, libinterp/corefcn/defun-int.h, libinterp/corefcn/det.cc, libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h, libinterp/corefcn/ls-mat5.cc, libinterp/corefcn/lu.cc, libinterp/corefcn/oct-tex-parser.yy, libinterp/corefcn/oct-tex-symbols.in, libinterp/corefcn/quadcc.cc, libinterp/corefcn/zfstream.cc, libinterp/dldfcn/__eigs__.cc, libinterp/dldfcn/__voronoi__.cc, libinterp/gendoc.pl, libinterp/genprops.awk, libinterp/mk-errno-list, libinterp/mk-pkg-add, libinterp/mkbuiltins, libinterp/mkdefs, 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scripts/statistics/distributions/unifrnd.m, scripts/statistics/distributions/wblrnd.m, scripts/statistics/models/module.mk, scripts/statistics/tests/kruskal_wallis_test.m, scripts/strings/base2dec.m, scripts/strings/deblank.m, scripts/strings/dec2base.m, scripts/strings/dec2bin.m, scripts/strings/dec2hex.m, scripts/strings/mat2str.m, scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m, scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strjoin.m, scripts/strings/strsplit.m, scripts/strings/strtok.m, scripts/strings/strtrim.m, scripts/strings/strtrunc.m, scripts/strings/substr.m, scripts/testfun/__run_test_suite__.m, scripts/testfun/speed.m, scripts/testfun/test.m, scripts/time/asctime.m, scripts/time/datenum.m, scripts/time/datevec.m, scripts/time/weekday.m, src/Makefile.am, test/Makefile.am, test/build-bc-overload-tests.sh, test/build-sparse-tests.sh, test/jit.tst, test/line-continue.tst: Strip trailing whitespace.
author John W. Eaton <jwe@octave.org>
date Tue, 20 Jan 2015 08:26:57 -0500
parents 3277514f36da
children 0e1f5a750d00
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1 /*
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2
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d63878346099 maint: Update copyright notices for release.
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3 Copyright (C) 2009-2013 Shai Ayal
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
2d6a5af744b6 printing for fltk backend using gl2ps
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2d6a5af744b6 printing for fltk backend using gl2ps
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
2d6a5af744b6 printing for fltk backend using gl2ps
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
2d6a5af744b6 printing for fltk backend using gl2ps
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #ifdef HAVE_GL2PS_H
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28
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29 #include <cstdio>
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30
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31 #include "lo-mappers.h"
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32 #include "oct-locbuf.h"
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33
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34 #include "gl2ps-renderer.h"
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35 #include "gl2ps.h"
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36
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37 void
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38 glps_renderer::draw (const graphics_object& go, const std::string print_cmd)
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39 {
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40 static bool in_draw = false;
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41 static std::string old_print_cmd;
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42
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43 if (!in_draw)
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44 {
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45 in_draw = true;
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46
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47 GLint buffsize = 0, state = GL2PS_OVERFLOW;
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48 GLint viewport[4];
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49
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50 glGetIntegerv (GL_VIEWPORT, viewport);
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51
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52 GLint gl2ps_term;
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53 if (term.find ("eps") != std::string::npos) gl2ps_term = GL2PS_EPS;
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54 else if (term.find ("pdf") != std::string::npos) gl2ps_term = GL2PS_PDF;
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55 else if (term.find ("svg") != std::string::npos) gl2ps_term = GL2PS_SVG;
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56 else if (term.find ("ps") != std::string::npos) gl2ps_term = GL2PS_PS;
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57 else if (term.find ("pgf") != std::string::npos) gl2ps_term = GL2PS_PGF;
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58 else if (term.find ("tex") != std::string::npos) gl2ps_term = GL2PS_TEX;
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59 else
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60 {
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61 error ("gl2ps-renderer:: Unknown terminal");
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62 return;
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63 }
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64
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65 GLint gl2ps_text = 0;
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66 if (term.find ("notxt") != std::string::npos) gl2ps_text = GL2PS_NO_TEXT;
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67
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68 // Default sort order optimizes for 3D plots
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69 GLint gl2ps_sort = GL2PS_BSP_SORT;
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70 if (term.find ("is2D") != std::string::npos) gl2ps_sort = GL2PS_NO_SORT;
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71
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72 while (state == GL2PS_OVERFLOW)
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73 {
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74 // For LaTeX output the fltk print process uses 2 drawnow() commands.
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75 // The first one is for the pdf/ps/eps graph to be included. The
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76 // print_cmd is saved as old_print_cmd. Then the second drawnow()
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77 // outputs the tex-file and the graphic filename to be included is
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78 // extracted from old_print_cmd.
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79 std::string include_graph;
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80 std::size_t found_redirect = old_print_cmd.find (">");
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81 if (found_redirect != std::string::npos)
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82 include_graph = old_print_cmd.substr (found_redirect + 1);
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83 else
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84 include_graph = old_print_cmd;
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85 std::size_t n_begin = include_graph.find_first_not_of (" ");
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86 if (n_begin != std::string::npos)
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87 {
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88 std::size_t n_end = include_graph.find_last_not_of (" ");
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89 include_graph = include_graph.substr (n_begin,
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90 n_end - n_begin + 1);
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91 }
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92 else
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93 include_graph = "foobar-inc";
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94 buffsize += 1024*1024;
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95 gl2psBeginPage ("glps_renderer figure", "Octave", viewport,
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96 gl2ps_term, gl2ps_sort,
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97 (GL2PS_SILENT | GL2PS_SIMPLE_LINE_OFFSET
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98 | GL2PS_NO_BLENDING | GL2PS_OCCLUSION_CULL
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99 | GL2PS_BEST_ROOT | gl2ps_text
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100 | GL2PS_NO_PS3_SHADING),
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101 GL_RGBA, 0, NULL, 0, 0, 0,
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102 buffsize, fp, include_graph.c_str ());
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103 old_print_cmd = print_cmd;
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104 opengl_renderer::draw (go);
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105 state = gl2psEndPage ();
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106 }
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107
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108 in_draw = 0;
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109 }
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110 else
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111 opengl_renderer::draw (go);
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112 }
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113
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114 int
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115 glps_renderer::alignment_to_mode (int ha, int va) const
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116 {
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117 int gl2psa=GL2PS_TEXT_BL;
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118 if (ha == 0)
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119 {
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120 if (va == 0 || va == 3)
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121 gl2psa=GL2PS_TEXT_BL;
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122 else if (va == 2)
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123 gl2psa=GL2PS_TEXT_TL;
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124 else if (va == 1)
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125 gl2psa=GL2PS_TEXT_CL;
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126 }
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127 else if (ha == 2)
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128 {
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129 if (va == 0 || va == 3)
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130 gl2psa=GL2PS_TEXT_BR;
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131 else if (va == 2)
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132 gl2psa=GL2PS_TEXT_TR;
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133 else if (va == 1)
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134 gl2psa=GL2PS_TEXT_CR;
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135 }
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136 else if (ha == 1)
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137 {
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138 if (va == 0 || va == 3)
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139 gl2psa=GL2PS_TEXT_B;
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140 else if (va == 2)
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141 gl2psa=GL2PS_TEXT_T;
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142 else if (va == 1)
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143 gl2psa=GL2PS_TEXT_C;
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144 }
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145 return gl2psa;
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146 }
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147
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148 Matrix
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149 glps_renderer::render_text (const std::string& txt,
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150 double x, double y, double z,
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diff changeset
151 int ha, int va, double rotation)
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152 {
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153 if (txt.empty ())
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154 return Matrix (1, 4, 0.0);
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155
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156 glRasterPos3d (x, y, z);
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157 gl2psTextOpt (txt.c_str (), fontname.c_str (), fontsize,
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158 alignment_to_mode (ha, va), rotation);
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159
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160 // FIXME?
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161 // We have no way of getting a bounding box from gl2ps, so we use freetype.
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162 Matrix bbox;
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163 uint8NDArray pixels;
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164 text_to_pixels (txt, pixels, bbox, 0, 0, rotation);
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165 return bbox;
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166 }
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167
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168 void
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169 glps_renderer::set_font (const base_properties& props)
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170 {
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171 opengl_renderer::set_font (props);
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172
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173 fontsize = props.get ("fontsize").double_value ();
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174
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175 caseless_str fn = props.get ("fontname").string_value ();
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176 fontname = "";
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177 if (fn == "times" || fn == "times-roman")
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178 fontname = "Times-Roman";
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179 else if (fn == "courier")
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180 fontname = "Courier";
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181 else if (fn == "symbol")
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182 fontname = "Symbol";
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183 else if (fn == "zapfdingbats")
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184 fontname = "ZapfDingbats";
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185 else
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186 fontname = "Helvetica";
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187
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188 // FIXME: add support for bold and italic
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189 }
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190
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191 template <typename T>
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192 static void
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193 draw_pixels (GLsizei w, GLsizei h, GLenum format, const T *data, float maxval)
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194 {
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195 OCTAVE_LOCAL_BUFFER (GLfloat, a, 3*w*h);
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196
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197 // Convert to GL_FLOAT as it is the only type gl2ps accepts.
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198 for (unsigned int i = 0; i < 3*w*h; i++)
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199 a[i] = data[i] / maxval;
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200
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201 gl2psDrawPixels (w, h, 0, 0, format, GL_FLOAT, a);
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202 }
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203
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204 void
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205 glps_renderer::draw_pixels (GLsizei w, GLsizei h, GLenum format,
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206 GLenum type, const GLvoid *data)
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207 {
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208 // gl2psDrawPixels only supports the GL_FLOAT type.
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209 // Other formats, such as uint8, must be converted first.
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210 if (type == GL_UNSIGNED_BYTE)
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211 ::draw_pixels (w, h, format, static_cast<const GLubyte *> (data), 255.0f);
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212 else if (type == GL_UNSIGNED_SHORT)
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213 ::draw_pixels (w, h, format, static_cast<const GLushort *> (data), 65535.0f);
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214 else
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215 gl2psDrawPixels (w, h, 0, 0, format, type, data);
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216 }
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217
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218 void
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219 glps_renderer::draw_text (const text::properties& props)
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220 {
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221 if (props.get_string ().is_empty ())
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222 return;
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223
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224 set_font (props);
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225 set_color (props.get_color_rgb ());
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226
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227 const Matrix pos = get_transform ().scale (props.get_data_position ());
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228 int halign = 0, valign = 0;
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229
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230 if (props.horizontalalignment_is ("center"))
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231 halign = 1;
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232 else if (props.horizontalalignment_is ("right"))
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233 halign = 2;
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234
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235 if (props.verticalalignment_is ("top"))
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236 valign = 2;
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237 else if (props.verticalalignment_is ("baseline"))
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238 valign = 3;
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239 else if (props.verticalalignment_is ("middle"))
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240 valign = 1;
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241
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242 // FIXME: handle margin and surrounding box
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243
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244 glRasterPos3d (pos(0), pos(1), pos.numel () > 2 ? pos(2) : 0.0);
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245
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246 octave_value string_prop = props.get_string ();
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247
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248 string_vector sv = string_prop.all_strings ();
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249
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250 std::string s = sv.join ("\n");
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251
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252 gl2psTextOpt (s.c_str (), fontname.c_str (), fontsize,
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253 alignment_to_mode (halign, valign), props.get_rotation ());
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254 }
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255
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256 #endif