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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.
author John W. Eaton <jwe@octave.org>
date Mon, 06 Jan 2020 22:29:51 -0500
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children bd51beb6205e
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1 /*
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2
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3 Copyright (C) 2009-2020 The Octave Project Developers
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4
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5 See the file COPYRIGHT.md in the top-level directory of this distribution
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6 or <https://octave.org/COPYRIGHT.html/>.
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7
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8
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9 This file is part of Octave.
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10
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11 Octave is free software: you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but
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17 WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <https://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #if defined (HAVE_CONFIG_H)
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28 # include "config.h"
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29 #endif
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30
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31 #include "base-text-renderer.h"
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32 #include "errwarn.h"
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33 #include "ft-text-renderer.h"
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34 #include "text-renderer.h"
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35
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36 namespace octave
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37 {
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38 static base_text_renderer *
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39 make_text_renderer (void)
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40 {
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41 // Allow the possibility of choosing different text rendering
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42 // implementations.
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43
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44 return make_ft_text_renderer ();
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45 }
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46
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47 text_renderer::text_renderer (void)
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48 : rep (make_text_renderer ())
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49 { }
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50
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51 text_renderer::~text_renderer (void)
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52 {
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53 delete rep;
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54 }
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55
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56 bool
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57 text_renderer::ok (void) const
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58 {
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59 static bool warned = false;
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60
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61 if (! rep)
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62 {
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63 if (! warned)
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64 {
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65 warn_disabled_feature ("opengl_renderer::render_text",
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66 "rendering text (FreeType)");
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67
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68 warned = true;
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69 }
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70 }
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71
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72 return rep != nullptr;
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73 }
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74
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75 Matrix
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76 text_renderer::get_extent (text_element *elt, double rotation)
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77 {
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78 static Matrix empty_extent (1, 4, 0.0);
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79
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80 return ok () ? rep->get_extent (elt, rotation) : empty_extent;
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81 }
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82
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83 Matrix
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84 text_renderer::get_extent (const std::string& txt, double rotation,
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85 const caseless_str& interpreter)
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86 {
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87 static Matrix empty_extent (1, 4, 0.0);
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88
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89 return ok () ? rep->get_extent (txt, rotation, interpreter) : empty_extent;
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90 }
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91
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92 void
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93 text_renderer::set_anti_aliasing (bool val)
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94 {
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95 if (ok ())
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96 rep->set_anti_aliasing (val);
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97 }
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98
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99 octave_map
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100 text_renderer::get_system_fonts (void)
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101 {
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102 octave_map retval;
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103
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104 if (ok ())
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105 retval = rep->get_system_fonts ();
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106
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107 return retval;
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108 }
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109
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110 void
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111 text_renderer::set_font (const std::string& name, const std::string& weight,
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112 const std::string& angle, double size)
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113 {
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114 if (ok ())
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115 rep->set_font (name, weight, angle, size);
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116 }
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117
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118 void
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119 text_renderer::set_color (const Matrix& c)
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120 {
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121 if (ok ())
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122 rep->set_color (c);
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123 }
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124
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125 void
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126 text_renderer::text_to_pixels (const std::string& txt,
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127 uint8NDArray& pxls, Matrix& bbox,
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128 int halign, int valign, double rotation,
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129 const caseless_str& interpreter,
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130 bool handle_rotation)
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131 {
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132 static Matrix empty_bbox (1, 4, 0.0);
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133 static uint8NDArray empty_pxls;
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134
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135 if (ok ())
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136 rep->text_to_pixels (txt, pxls, bbox, halign, valign, rotation,
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137 interpreter, handle_rotation);
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138 else
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139 {
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140 bbox = empty_bbox;
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141 pxls = empty_pxls;
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142 }
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143 }
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144
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145 void
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146 text_renderer::text_to_strlist (const std::string& txt,
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147 std::list<text_renderer::string>& lst,
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148 Matrix& bbox, int halign, int valign,
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149 double rotation,
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150 const caseless_str& interpreter)
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151 {
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152 static Matrix empty_bbox (1, 4, 0.0);
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153 static std::list<text_renderer::string> empty_lst;
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154
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155 if (ok ())
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156 rep->text_to_strlist (txt, lst, bbox, halign, valign, rotation,
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157 interpreter);
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158 else
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159 {
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160 bbox = empty_bbox;
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161 lst = empty_lst;
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162 }
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163 }
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164 }