Mercurial > octave-nkf
annotate libgui/graphics/Canvas.h @ 18646:9597e00ed2dd
Add support for "windowbuttonmotionfcn" and "currentpoint"
* Figure.cc (Figure::Figure): Enable mouse tracking if
windowbuttonmotionfcn callback is defined.
(Figure::update): Enable mouse tracking on canvas and all child widgets
when windowbuttonmotionfcn is defined.
* Panel.cc (Panel::Panel): Propagate mouse tracking to child widgets
during initialization.
* Container.h (Container::childEvent): New method.
* Container.cc (Container::childEvent): Likewise. Propagate mouse
tracking status to child widgets.
* BaseControl.cc (BaseControl::eventFilter): Handle mouse move events
and call figure's appropriate callback.
* Canvas.h (Canvas::updateCurrentPoint): New method.
* Canvas.cc (Canvas::updateCurrentPoint): Likewise. Update figure and
child axes currentpoint property.
(Canvas::canvasMouseMoveEvent): Update currentpoint properties and call
windowbuttonmotionfcn callback.
(Canvas::canvasMousePressEvent): Call updateCurrentPoint.
(Canvas::canvasMouseReleaseEvent): Likewise.
author | Michael Goffioul <michael.goffioul@gmail.com> |
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date | Tue, 01 Apr 2014 20:57:08 -0400 |
parents | 523878f76518 |
children | fe0e34be5576 |
rev | line source |
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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 namespace QtHandles |
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37 { |
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38 |
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39 class Canvas |
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40 { |
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41 public: |
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42 enum EventMask |
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43 { |
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44 KeyPress = 0x01, |
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45 KeyRelease = 0x02 |
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46 }; |
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47 |
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48 public: |
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49 virtual ~Canvas (void) { } |
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50 |
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51 void redraw (bool sync = false); |
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52 void blockRedraw (bool block = true); |
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53 |
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54 void addEventMask (int m) { m_eventMask |= m; } |
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55 void clearEventMask (int m) { m_eventMask &= (~m); } |
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56 void setEventMask (int m) { m_eventMask = m; } |
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57 |
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58 virtual QWidget* qWidget (void) = 0; |
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59 |
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60 static Canvas* create (const std::string& name, QWidget* parent, |
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61 const graphics_handle& handle); |
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62 |
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63 protected: |
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64 virtual void draw (const graphics_handle& handle) = 0; |
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65 virtual void drawZoomBox (const QPoint& p1, const QPoint& p2) = 0; |
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66 virtual void resize (int x, int y, int width, int height) = 0; |
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67 virtual graphics_object selectFromAxes (const graphics_object& ax, |
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68 const QPoint& pt) = 0; |
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69 |
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70 protected: |
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71 Canvas (const graphics_handle& handle) |
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72 : m_handle (handle), |
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73 m_redrawBlocked (false), |
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74 m_mouseMode (NoMode), |
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75 m_eventMask (0) |
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76 { } |
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77 |
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78 void canvasPaintEvent (void); |
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79 void canvasMouseMoveEvent (QMouseEvent* event); |
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80 void canvasMousePressEvent (QMouseEvent* event); |
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81 void canvasMouseReleaseEvent (QMouseEvent* event); |
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82 bool canvasKeyPressEvent (QKeyEvent* event); |
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83 bool canvasKeyReleaseEvent (QKeyEvent* event); |
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84 |
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85 void updateCurrentPoint (const graphics_object& fig, |
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86 const graphics_object& obj, QMouseEvent *event); |
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87 |
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88 private: |
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89 graphics_handle m_handle; |
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90 bool m_redrawBlocked; |
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91 MouseMode m_mouseMode; |
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92 QPoint m_mouseAnchor; |
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93 QPoint m_mouseCurrent; |
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94 graphics_handle m_mouseAxes; |
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95 int m_eventMask; |
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96 }; |
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97 |
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98 }; // namespace QtHandles |
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99 |
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100 #endif |