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annotate libgui/graphics/GLCanvas.h @ 33639:65b1cf6aa60a bytecode-interpreter tip

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maint: Merge default to bytecode-interpreter
author Arun Giridhar <arungiridhar@gmail.com>
date Mon, 03 Jun 2024 14:38:47 -0400
parents 2e484f9f1f18
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2011-2024 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_GLCanvas_h)
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27 #define octave_GLCanvas_h 1
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28
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29 #include <QOffscreenSurface>
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30 #include <QOpenGLContext>
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31 #include <QOpenGLFramebufferObject>
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32 #include <QOpenGLWidget>
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33
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34 #include "Canvas.h"
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35
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36 #include "gl-render.h"
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37 #include "qopengl-functions.h"
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38
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39 OCTAVE_BEGIN_NAMESPACE(octave)
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40
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41 class GLWidget : public QOpenGLWidget
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42 {
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43 Q_OBJECT
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44
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45 public:
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46
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47 GLWidget (Canvas& parent_canvas, QWidget *parent);
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48
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49 ~GLWidget ();
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50
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51 void initializeGL ();
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52
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53 void draw (graphics_object go);
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54 uint8NDArray do_getPixels (graphics_object go);
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55 void do_print (const QString& file_cmd, const QString& term,
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56 graphics_object go);
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57 void drawZoomBox (const QPoint& p1, const QPoint& p2);
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58 void resize (int /* x */, int /* y */,
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59 int /* width */, int /* height */) { }
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60 graphics_object selectFromAxes (const graphics_object& ax,
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61 const QPoint& pt);
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62
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63 bool begin_rendering ();
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64 void end_rendering ();
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65
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66 protected:
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67
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68 void paintGL ();
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69 void mouseDoubleClickEvent (QMouseEvent *event);
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70 void mouseMoveEvent (QMouseEvent *event);
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71 void mousePressEvent (QMouseEvent *event);
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72 void mouseReleaseEvent (QMouseEvent *event);
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73 void wheelEvent (QWheelEvent *event);
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74 void keyPressEvent (QKeyEvent *event);
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75 void keyReleaseEvent (QKeyEvent *event);
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76
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77 private:
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78
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79 Canvas& m_parent_canvas;
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80
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81 qopengl_functions m_glfcns;
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82 opengl_renderer m_renderer;
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83
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84 QOpenGLContext m_os_context;
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85 QOffscreenSurface m_os_surface;
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86 };
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87
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88 class GLCanvas : public Canvas
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89 {
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90 public:
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91
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92 GLCanvas (octave::interpreter& interp, const graphics_handle& handle,
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93 QWidget *parent);
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94
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95 ~GLCanvas ();
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96
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97 void draw (const graphics_handle& handle);
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98 uint8NDArray do_getPixels (const graphics_handle& handle);
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99 void do_print (const QString& file_cmd, const QString& term,
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100 const graphics_handle& handle);
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101 void drawZoomBox (const QPoint& p1, const QPoint& p2);
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102 void resize (int /* x */, int /* y */,
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103 int /* width */, int /* height */) { }
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104 graphics_object selectFromAxes (const graphics_object& ax,
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105 const QPoint& pt);
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106
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107 QWidget * qWidget () { return m_glwidget; }
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108
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109 private:
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110
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111 GLWidget *m_glwidget;
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112
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113 bool begin_rendering ();
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114 void end_rendering ();
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115 };
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116
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117 OCTAVE_END_NAMESPACE(octave)
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118
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119 #endif