Mercurial > octave-nkf
annotate libgui/graphics/Canvas.h @ 18500:49877d3be064 gui-release
update copyright notices for new QtHandles code
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 20 Feb 2014 14:58:56 -0500 |
parents | 2e7cad6f180c |
children | 523878f76518 |
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1 /* |
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2 |
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3 Copyright (C) 2011-2014 Michael Goffioul |
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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 #ifndef __QtHandles_Canvas__ |
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24 #define __QtHandles_Canvas__ 1 |
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25 |
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26 #include <QPoint> |
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27 |
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28 #include "graphics.h" |
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29 |
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30 #include "Figure.h" |
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31 |
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32 class QKeyEvent; |
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33 class QMouseEvent; |
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34 class QWidget; |
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35 |
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36 ////////////////////////////////////////////////////////////////////////////// |
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37 |
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38 namespace QtHandles |
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39 { |
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40 |
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41 ////////////////////////////////////////////////////////////////////////////// |
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42 |
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43 class Canvas |
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44 { |
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45 public: |
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46 enum EventMask |
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47 { |
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48 KeyPress = 0x01, |
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49 KeyRelease = 0x02 |
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50 }; |
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51 |
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52 public: |
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53 virtual ~Canvas (void) { } |
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54 |
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55 void redraw (bool sync = false); |
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56 void blockRedraw (bool block = true); |
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57 |
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58 void addEventMask (int m) { m_eventMask |= m; } |
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59 void clearEventMask (int m) { m_eventMask &= (~m); } |
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60 void setEventMask (int m) { m_eventMask = m; } |
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61 |
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62 virtual QWidget* qWidget (void) = 0; |
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63 |
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64 static Canvas* create (const std::string& name, QWidget* parent, |
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65 const graphics_handle& handle); |
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66 |
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67 protected: |
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68 virtual void draw (const graphics_handle& handle) = 0; |
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69 virtual void drawZoomBox (const QPoint& p1, const QPoint& p2) = 0; |
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70 virtual void resize (int x, int y, int width, int height) = 0; |
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71 virtual graphics_object selectFromAxes (const graphics_object& ax, |
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72 const QPoint& pt) = 0; |
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73 |
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74 protected: |
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75 Canvas (const graphics_handle& handle) |
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76 : m_handle (handle), |
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77 m_redrawBlocked (false), |
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78 m_mouseMode (NoMode), |
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79 m_eventMask (0) |
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80 { } |
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81 |
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82 void canvasPaintEvent (void); |
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83 void canvasMouseMoveEvent (QMouseEvent* event); |
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84 void canvasMousePressEvent (QMouseEvent* event); |
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85 void canvasMouseReleaseEvent (QMouseEvent* event); |
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86 bool canvasKeyPressEvent (QKeyEvent* event); |
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87 bool canvasKeyReleaseEvent (QKeyEvent* event); |
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88 |
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89 private: |
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90 graphics_handle m_handle; |
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91 bool m_redrawBlocked; |
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92 MouseMode m_mouseMode; |
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93 QPoint m_mouseAnchor; |
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94 QPoint m_mouseCurrent; |
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95 graphics_handle m_mouseAxes; |
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96 int m_eventMask; |
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97 }; |
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98 |
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99 ////////////////////////////////////////////////////////////////////////////// |
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100 |
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101 }; // namespace QtHandles |
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102 |
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103 ////////////////////////////////////////////////////////////////////////////// |
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104 |
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105 #endif |