Mercurial > octave
annotate libinterp/corefcn/gl2ps-renderer.cc @ 17797:06a850f83dd4
build: Remove embedded gl2ps. Require gl2ps as external dependency.
* NEWS: Announce that gl2ps is no longer distributed with Octave.
* build-aux/common.mk: New AC_SUBST macro GL2PS_LIBS.
* configure.ac: When building native graphics, test for gl2ps.h header.
If not found, print a warning and disable printing of FLTK figures.
* libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/gl2ps-renderer.h:
Only compile files if HAVE_GL2PS_H is true.
* libinterp/dldfcn/__init_fltk__.cc(draw): Use #ifdef HAVE_GL2PS_H
to either print figure, or issue a warning when gl2ps is not available.
* libinterp/link-deps.mk: Add GL2PS_LIBS to libinter link dependencies
* libinterp/corefcn/module.mk: Remove gl2ps.h, gl2ps.c from build system.
* libinterp/corefcn/gl2ps.c, libinterp/corefcn/gl2ps.h: Removed from
distribution.
author | Rik <rik@octave.org> |
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date | Tue, 29 Oct 2013 15:16:23 -0700 |
parents | 175b392e91fe |
children | 870f3e12e163 |
rev | line source |
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1 /* |
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2 |
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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 |
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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 #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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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? -- we have no way of getting a bounding box from gl2ps, so |
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161 // 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) |
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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 for (int i = 0; i < 3*w*h; i++) |
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198 a[i] = data[i]; |
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199 |
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200 gl2psDrawPixels (w, h, 0, 0, format, GL_FLOAT, a); |
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201 } |
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202 |
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203 void |
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204 glps_renderer::draw_pixels (GLsizei w, GLsizei h, GLenum format, |
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205 GLenum type, const GLvoid *data) |
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206 { |
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207 if (type == GL_UNSIGNED_SHORT) |
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208 ::draw_pixels (w, h, format, static_cast<const GLushort *> (data)); |
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209 else if (type == GL_UNSIGNED_BYTE) |
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210 ::draw_pixels (w, h, format, static_cast<const GLubyte *> (data)); |
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211 else |
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212 gl2psDrawPixels (w, h, 0, 0, format, type, data); |
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213 } |
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214 |
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215 void |
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216 glps_renderer::draw_text (const text::properties& props) |
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217 { |
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218 if (props.get_string ().is_empty ()) |
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219 return; |
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220 |
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221 set_font (props); |
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222 set_color (props.get_color_rgb ()); |
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223 |
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224 const Matrix pos = get_transform ().scale (props.get_data_position ()); |
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225 int halign = 0, valign = 0; |
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226 |
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227 if (props.horizontalalignment_is ("center")) |
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228 halign = 1; |
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229 else if (props.horizontalalignment_is ("right")) |
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230 halign = 2; |
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231 |
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232 if (props.verticalalignment_is ("top")) |
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233 valign = 2; |
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234 else if (props.verticalalignment_is ("baseline")) |
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235 valign = 3; |
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236 else if (props.verticalalignment_is ("middle")) |
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237 valign = 1; |
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238 |
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239 // FIXME: handle margin and surrounding box |
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240 |
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241 glRasterPos3d (pos(0), pos(1), pos.numel () > 2 ? pos(2) : 0.0); |
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242 |
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243 octave_value string_prop = props.get_string (); |
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244 |
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245 string_vector sv = string_prop.all_strings (); |
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246 |
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247 std::string s = sv.join ("\n"); |
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248 |
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249 gl2psTextOpt (s.c_str (), fontname.c_str (), fontsize, |
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250 alignment_to_mode (halign, valign), props.get_rotation ()); |
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251 } |
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252 |
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253 #endif |