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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) 2011-2020 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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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 (octave_GLCanvas_h)
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28 #define octave_GLCanvas_h 1
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29
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30 #if defined (HAVE_QOPENGLWIDGET)
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31 # include <QOpenGLWidget>
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32 # define OCTAVE_QT_OPENGL_WIDGET QOpenGLWidget
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33 # include <QOpenGLFramebufferObject>
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34 # define OCTAVE_QT_OPENGL_FBO QOpenGLFramebufferObject
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35 # if defined (HAVE_QT_OFFSCREEN)
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36 # include <QOpenGLContext>
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37 # include <QOffscreenSurface>
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38 # endif
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39 #elif defined (HAVE_QGLWIDGET)
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40 # include <QGLWidget>
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41 # define OCTAVE_QT_OPENGL_WIDGET QGLWidget
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42 # include <QGLFramebufferObject>
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43 # define OCTAVE_QT_OPENGL_FBO QGLFramebufferObject
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44 #else
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45 # error "configuration error: must have <QOpenGLWidget> or <QGLWidget>."
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46 #endif
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47
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48 #include "Canvas.h"
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49
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50 #include "gl-render.h"
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51 #include "qopengl-functions.h"
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52
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53 namespace octave
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54 {
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55 class base_qobject;
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56 }
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57
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58 namespace QtHandles
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59 {
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60 class GLCanvas : public OCTAVE_QT_OPENGL_WIDGET, public Canvas
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61 {
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62 public:
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63 GLCanvas (octave::base_qobject& oct_qobj, octave::interpreter& interp,
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64 const graphics_handle& handle, QWidget *parent);
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65 ~GLCanvas (void);
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66
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67 void initializeGL (void);
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68
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69 void draw (const graphics_handle& handle);
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70 uint8NDArray do_getPixels (const graphics_handle& handle);
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71 void do_print (const QString& file_cmd, const QString& term,
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72 const graphics_handle& handle);
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73 void drawZoomBox (const QPoint& p1, const QPoint& p2);
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74 void resize (int /* x */, int /* y */,
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75 int /* width */, int /* height */) { }
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76 graphics_object selectFromAxes (const graphics_object& ax,
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77 const QPoint& pt);
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78 QWidget * qWidget (void) { return this; }
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79
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80 protected:
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81 void paintGL (void);
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82 void mouseDoubleClickEvent (QMouseEvent *event);
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83 void mouseMoveEvent (QMouseEvent *event);
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84 void mousePressEvent (QMouseEvent *event);
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85 void mouseReleaseEvent (QMouseEvent *event);
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86 void wheelEvent (QWheelEvent *event);
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87 void keyPressEvent (QKeyEvent *event);
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88 void keyReleaseEvent (QKeyEvent *event);
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89
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90 private:
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91
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92 bool begin_rendering (void);
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93 void end_rendering (void);
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94
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95 octave::qopengl_functions m_glfcns;
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96 octave::opengl_renderer m_renderer;
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97
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98 # if defined (HAVE_QT_OFFSCREEN)
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99 QOpenGLContext m_os_context;
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100 QOffscreenSurface m_os_surface;
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101 # endif
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102 };
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103
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104 }
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105
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106 #endif