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annotate libinterp/interp-core/gl2ps-renderer.cc @ 16732:3806afcf974a

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Include graphics image file name in latex file for {eps,pdf,ps}latex output. * libinterp/dldfcn/__init_fltk__.cc: Add print_cmd to gl2ps_renderer.draw. * libinterp/interp-core/gl2ps-renderer.h: Add print_cmd to declaration of draw. * libinterp/interp-core/gl2ps-renderer.cc: Extract the graphics filename to be included in the LaTeX document.
author Ben Abbott <bpabbott@mac.com>
date Sat, 08 Jun 2013 11:22:10 +0800
parents 2fc554ffbc28
children
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1 /*
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2
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72c96de7a403 maint: update copyright notices for 2012
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3 Copyright (C) 2009-2012 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
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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
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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
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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 #if defined (HAVE_OPENGL)
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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 two drawnow() commands.
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75 // The first one is for the pdf/ps/eps graph to be included. The print_cmd
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76 // is saved as old_print_cmd. Then the second drawnow() outputs the tex-file
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77 // and the graphic filename to be included is extracted from old_print_cmd.
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78 std::string include_graph;
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79 std::size_t found_redirect = old_print_cmd.find (">");
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80 if (found_redirect != std::string::npos)
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81 include_graph = old_print_cmd.substr (found_redirect + 1);
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82 else
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83 include_graph = old_print_cmd;
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84 std::size_t n_begin = include_graph.find_first_not_of (" ");
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85 if (n_begin != std::string::npos)
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86 {
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87 std::size_t n_end = include_graph.find_last_not_of (" ");
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88 include_graph = include_graph.substr (n_begin, n_end - n_begin + 1);
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89 }
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90 else
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91 include_graph = "foobar-inc";
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92 buffsize += 1024*1024;
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93 gl2psBeginPage ("glps_renderer figure", "Octave", viewport,
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94 gl2ps_term, gl2ps_sort,
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95 (GL2PS_SILENT | GL2PS_SIMPLE_LINE_OFFSET
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96 | GL2PS_NO_BLENDING | GL2PS_OCCLUSION_CULL
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97 | GL2PS_BEST_ROOT | gl2ps_text
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98 | GL2PS_NO_PS3_SHADING),
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99 GL_RGBA, 0, NULL, 0, 0, 0,
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100 buffsize, fp, include_graph.c_str ());
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101 old_print_cmd = print_cmd;
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102 opengl_renderer::draw (go);
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103 state = gl2psEndPage ();
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104 }
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105
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106 in_draw = 0;
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107 }
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108 else
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109 opengl_renderer::draw (go);
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110 }
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111
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112 int
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113 glps_renderer::alignment_to_mode (int ha, int va) const
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114 {
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115 int gl2psa=GL2PS_TEXT_BL;
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116 if (ha == 0)
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117 {
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118 if (va == 0 || va == 3)
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119 gl2psa=GL2PS_TEXT_BL;
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120 else if (va == 2)
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121 gl2psa=GL2PS_TEXT_TL;
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122 else if (va == 1)
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123 gl2psa=GL2PS_TEXT_CL;
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124 }
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125 else if (ha == 2)
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126 {
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127 if (va == 0 || va == 3)
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128 gl2psa=GL2PS_TEXT_BR;
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129 else if (va == 2)
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130 gl2psa=GL2PS_TEXT_TR;
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131 else if (va == 1)
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132 gl2psa=GL2PS_TEXT_CR;
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133 }
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134 else if (ha == 1)
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135 {
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136 if (va == 0 || va == 3)
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137 gl2psa=GL2PS_TEXT_B;
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138 else if (va == 2)
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139 gl2psa=GL2PS_TEXT_T;
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140 else if (va == 1)
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141 gl2psa=GL2PS_TEXT_C;
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142 }
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143 return gl2psa;
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144 }
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145
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146 Matrix
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147 glps_renderer::render_text (const std::string& txt,
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148 double x, double y, double z,
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149 int ha, int va, double rotation)
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150 {
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151 if (txt.empty ())
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152 return Matrix (1, 4, 0.0);
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153
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154 glRasterPos3d (x, y, z);
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155 gl2psTextOpt (txt.c_str (), fontname.c_str (), fontsize,
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156 alignment_to_mode (ha, va), rotation);
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157
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158 // FIXME? -- we have no way of getting a bounding box from gl2ps, so
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159 // we use freetype
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160 Matrix bbox;
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161 uint8NDArray pixels;
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162 text_to_pixels (txt, pixels, bbox, 0, 0, rotation);
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163 return bbox;
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164 }
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165
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166 void
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167 glps_renderer::set_font (const base_properties& props)
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168 {
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169 opengl_renderer::set_font (props);
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170
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171 fontsize = props.get ("fontsize").double_value ();
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172
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173 caseless_str fn = props.get ("fontname").string_value ();
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174 fontname = "";
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175 if (fn == "times" || fn == "times-roman")
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176 fontname = "Times-Roman";
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177 else if (fn == "courier")
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178 fontname = "Courier";
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179 else if (fn == "symbol")
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180 fontname = "Symbol";
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181 else if (fn == "zapfdingbats")
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182 fontname = "ZapfDingbats";
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183 else
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184 fontname = "Helvetica";
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185
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186 // FIXME -- add support for bold and italic
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187 }
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188
9950
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189 template <typename T>
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190 static void
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191 draw_pixels (GLsizei w, GLsizei h, GLenum format, const T *data)
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192 {
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193 OCTAVE_LOCAL_BUFFER (GLfloat, a, 3*w*h);
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194
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195 for (int i = 0; i < 3*w*h; i++)
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196 a[i] = data[i];
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197
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198 gl2psDrawPixels (w, h, 0, 0, format, GL_FLOAT, a);
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199 }
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200
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201 void
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202 glps_renderer::draw_pixels (GLsizei w, GLsizei h, GLenum format,
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203 GLenum type, const GLvoid *data)
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204 {
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205 if (type == GL_UNSIGNED_SHORT)
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206 ::draw_pixels (w, h, format, static_cast<const GLushort *> (data));
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207 else if (type == GL_UNSIGNED_BYTE)
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208 ::draw_pixels (w, h, format, static_cast<const GLubyte *> (data));
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209 else
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210 gl2psDrawPixels (w, h, 0, 0, format, type, data);
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211 }
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212
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213 void
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214 glps_renderer::draw_text (const text::properties& props)
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215 {
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216 if (props.get_string ().is_empty ())
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diff changeset
217 return;
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diff changeset
218
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219 set_font (props);
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diff changeset
220 set_color (props.get_color_rgb ());
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diff changeset
221
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diff changeset
222 const Matrix pos = get_transform ().scale (props.get_data_position ());
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223 int halign = 0, valign = 0;
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diff changeset
224
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diff changeset
225 if (props.horizontalalignment_is ("center"))
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diff changeset
226 halign = 1;
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227 else if (props.horizontalalignment_is ("right"))
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diff changeset
228 halign = 2;
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229
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230 if (props.verticalalignment_is ("top"))
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diff changeset
231 valign = 2;
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diff changeset
232 else if (props.verticalalignment_is ("baseline"))
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diff changeset
233 valign = 3;
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234 else if (props.verticalalignment_is ("middle"))
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diff changeset
235 valign = 1;
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diff changeset
236
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diff changeset
237 // FIXME: handle margin and surrounding box
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diff changeset
238
14468
d16638f73691 Modify gl2ps_renderer.cc to properly specificy 2D/3D text object positions.
Konstantinos Poulios <logari81@googlemail.com>
parents: 14418
diff changeset
239 glRasterPos3d (pos(0), pos(1), pos.numel () > 2 ? pos(2) : 0.0);
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diff changeset
240
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parents: 12322
diff changeset
241 octave_value string_prop = props.get_string ();
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diff changeset
242
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices
Ben Abbott <bpabbott@mac.com>
parents: 12322
diff changeset
243 string_vector sv = string_prop.all_strings ();
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Ben Abbott <bpabbott@mac.com>
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diff changeset
244
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices
Ben Abbott <bpabbott@mac.com>
parents: 12322
diff changeset
245 std::string s = sv.join ("\n");
22bc9ec80c2c allow multi-line string property for text objects using cell arrays or char matrices
Ben Abbott <bpabbott@mac.com>
parents: 12322
diff changeset
246
13141
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John W. Eaton <jwe@octave.org>
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diff changeset
247 gl2psTextOpt (s.c_str (), fontname.c_str (), fontsize,
11455
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diff changeset
248 alignment_to_mode (halign, valign), props.get_rotation ());
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diff changeset
249 }
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diff changeset
250
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251 #endif