Mercurial > octave
annotate libinterp/corefcn/graphics-toolkit.h @ 33617:ec2635a02328 bytecode-interpreter tip
maint: Merge default to bytecode-interpreter.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Tue, 21 May 2024 18:29:03 +0200 |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2007-2024 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 |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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25 |
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26 #if ! defined (octave_graphics_toolkit_h) |
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27 #define octave_graphics_toolkit_h 1 |
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28 |
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29 #include "octave-config.h" |
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30 |
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31 #include <map> |
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32 #include <memory> |
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33 #include <string> |
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34 |
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35 #include "dMatrix.h" |
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36 |
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37 #include "Cell.h" |
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38 #include "error.h" |
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39 #include "graphics-handle.h" |
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40 |
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41 OCTAVE_BEGIN_NAMESPACE(octave) |
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42 |
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43 class graphics_object; |
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44 class graphics_toolkit; |
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45 |
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46 class base_graphics_toolkit |
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47 { |
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48 public: |
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49 |
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50 friend class graphics_toolkit; |
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51 |
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52 public: |
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53 |
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54 base_graphics_toolkit (const std::string& nm) |
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55 : m_name (nm) |
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56 { } |
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57 |
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58 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (base_graphics_toolkit) |
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59 |
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60 virtual ~base_graphics_toolkit () = default; |
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61 |
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62 std::string get_name () const |
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63 { |
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64 return m_name; |
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65 } |
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66 |
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67 virtual bool is_valid () const |
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68 { |
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69 return false; |
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70 } |
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71 |
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72 virtual void redraw_figure (const graphics_object&) const |
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73 { |
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74 gripe_if_tkit_invalid ("redraw_figure"); |
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75 } |
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76 |
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77 virtual void show_figure (const graphics_object&) const |
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78 { |
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79 gripe_if_tkit_invalid ("show_figure"); |
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80 } |
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81 |
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82 virtual void print_figure (const graphics_object&, const std::string&, |
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83 const std::string&, |
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84 const std::string& = "") const |
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85 { |
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86 gripe_if_tkit_invalid ("print_figure"); |
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87 } |
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88 |
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89 virtual uint8NDArray get_pixels (const graphics_object&) const |
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90 { |
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91 gripe_if_tkit_invalid ("get_pixels"); |
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92 return uint8NDArray (); |
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93 } |
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94 |
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95 virtual Matrix get_canvas_size (const graphics_handle&) const |
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96 { |
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97 gripe_if_tkit_invalid ("get_canvas_size"); |
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98 return Matrix (1, 2, 0.0); |
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99 } |
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100 |
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101 virtual double get_screen_resolution () const |
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102 { |
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103 gripe_if_tkit_invalid ("get_screen_resolution"); |
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104 return 72.0; |
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105 } |
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106 |
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107 virtual Matrix get_screen_size () const |
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108 { |
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109 gripe_if_tkit_invalid ("get_screen_size"); |
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110 return Matrix (1, 2, 0.0); |
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111 } |
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112 |
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113 virtual Matrix get_text_extent (const graphics_object&) const |
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114 { |
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115 gripe_if_tkit_invalid ("get_text_extent"); |
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116 return Matrix (); |
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117 } |
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118 |
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119 // Callback function executed when the given graphics object |
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120 // changes. This allows the graphics toolkit to act on property |
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121 // changes if needed. |
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122 virtual void update (const graphics_object&, int) |
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123 { |
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124 gripe_if_tkit_invalid ("base_graphics_toolkit::update"); |
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125 } |
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126 |
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127 void update (const graphics_handle&, int); |
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128 |
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129 // Callback function executed when the given graphics object is |
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130 // created. This allows the graphics toolkit to do toolkit-specific |
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131 // initializations for a newly created object. |
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132 virtual bool initialize (const graphics_object&) |
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133 { |
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134 gripe_if_tkit_invalid ("base_graphics_toolkit::initialize"); |
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135 return false; |
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136 } |
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137 |
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138 bool initialize (const graphics_handle&); |
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139 |
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140 // Callback function executed just prior to deleting the given |
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141 // graphics object. This allows the graphics toolkit to perform |
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142 // toolkit-specific cleanup operations before an object is deleted. |
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143 virtual void finalize (const graphics_object&) |
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144 { |
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145 gripe_if_tkit_invalid ("base_graphics_toolkit::finalize"); |
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146 } |
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147 |
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148 void finalize (const graphics_handle&); |
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149 |
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150 // Close the graphics toolkit. |
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151 virtual void close () |
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152 { |
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153 gripe_if_tkit_invalid ("base_graphics_toolkit::close"); |
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154 } |
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155 |
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156 private: |
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157 |
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158 std::string m_name; |
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159 |
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160 private: |
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161 |
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162 void gripe_if_tkit_invalid (const std::string& fname) const |
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163 { |
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164 if (! is_valid ()) |
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165 error ("%s: invalid graphics toolkit", fname.c_str ()); |
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166 } |
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167 }; |
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168 |
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169 class graphics_toolkit |
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170 { |
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171 public: |
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172 graphics_toolkit (const std::string& name = "unknown") |
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173 : m_rep (new base_graphics_toolkit (name)) |
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174 { } |
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175 |
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176 // NEW_REP must be dynamically allocated. |
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177 graphics_toolkit (base_graphics_toolkit *new_rep) |
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178 : m_rep (std::shared_ptr<base_graphics_toolkit> (new_rep)) |
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179 { |
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180 if (! m_rep) |
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181 error ("invalid graphics_toolkit!"); |
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182 } |
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183 |
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184 graphics_toolkit (const graphics_toolkit& b) = default; |
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185 |
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186 graphics_toolkit& operator = (const graphics_toolkit& b) = default; |
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187 |
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188 ~graphics_toolkit () = default; |
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189 |
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190 operator bool () const |
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191 { |
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192 return m_rep->is_valid (); |
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193 } |
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194 |
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195 std::string get_name () const |
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196 { |
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197 return m_rep->get_name (); |
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198 } |
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199 |
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200 void redraw_figure (const graphics_object& go) const |
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201 { |
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202 m_rep->redraw_figure (go); |
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203 } |
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204 |
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205 void show_figure (const graphics_object& go) const |
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206 { |
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207 m_rep->show_figure (go); |
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208 } |
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209 |
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210 void print_figure (const graphics_object& go, const std::string& term, |
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211 const std::string& file, |
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212 const std::string& debug_file = "") const |
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213 { |
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214 m_rep->print_figure (go, term, file, debug_file); |
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215 } |
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216 |
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217 uint8NDArray get_pixels (const graphics_object& go) const |
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218 { |
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219 return m_rep->get_pixels (go); |
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220 } |
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221 |
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222 Matrix get_canvas_size (const graphics_handle& fh) const |
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223 { |
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224 return m_rep->get_canvas_size (fh); |
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225 } |
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226 |
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227 double get_screen_resolution () const |
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228 { |
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229 return m_rep->get_screen_resolution (); |
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230 } |
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231 |
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232 Matrix get_screen_size () const |
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233 { |
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234 return m_rep->get_screen_size (); |
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235 } |
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236 |
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237 Matrix get_text_extent (const graphics_object& go) const |
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238 { |
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239 return m_rep->get_text_extent (go); |
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240 } |
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241 |
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242 // Notifies graphics toolkit that object't property has changed. |
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243 void update (const graphics_object& go, int id) |
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244 { |
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245 m_rep->update (go, id); |
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246 } |
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247 |
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248 void update (const graphics_handle& h, int id) |
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249 { |
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250 m_rep->update (h, id); |
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251 } |
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252 |
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253 // Notifies graphics toolkit that new object was created. |
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254 bool initialize (const graphics_object& go) |
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255 { |
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256 return m_rep->initialize (go); |
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257 } |
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258 |
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259 bool initialize (const graphics_handle& h) |
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260 { |
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261 return m_rep->initialize (h); |
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262 } |
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263 |
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264 // Notifies graphics toolkit that object was destroyed. |
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265 // This is called only for explicitly deleted object. |
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266 // Children are deleted implicitly and graphics toolkit isn't notified. |
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267 void finalize (const graphics_object& go) |
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268 { |
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269 m_rep->finalize (go); |
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270 } |
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271 |
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272 void finalize (const graphics_handle& h) |
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273 { |
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274 m_rep->finalize (h); |
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275 } |
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276 |
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277 // Close the graphics toolkit. |
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278 void close () |
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279 { |
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280 m_rep->close (); |
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281 } |
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282 |
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283 private: |
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284 |
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285 std::shared_ptr<base_graphics_toolkit> m_rep; |
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286 }; |
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287 |
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288 OCTAVE_END_NAMESPACE(octave) |
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289 |
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290 #endif |