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annotate libgui/graphics/Canvas.h @ 18726:fe0e34be5576

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maint: untabify recently added code files. * Backend.cc, BaseControl.cc, ButtonControl.cc, Canvas.cc, Canvas.h, CheckBoxControl.cc, Container.cc, ContextMenu.cc, EditControl.cc, Figure.cc, Figure.h, GLCanvas.h, ListBoxControl.cc, Menu.cc, MouseModeActionGroup.cc, Object.cc, Object.h, ObjectFactory.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, QtHandlesUtils.cc, QtHandlesUtils.h, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBarButton.cc, __init_qt__.cc, pt-jit.cc, ov-classdef.cc, ov-classdef.h: Untabify code.
author Rik <rik@octave.org>
date Sun, 27 Apr 2014 18:02:47 -0700
parents 9597e00ed2dd
children dfea01b3425f
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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