VR-Forces 4.1 Class Documentation
navigationHandler.h
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1 /*******************************************************************************
2 ** Copyright (c) 2003 MAK Technologies, Inc.
3 ** All rights reserved.
4 *******************************************************************************/
5 /*******************************************************************************
6 ** $RCSfile: navigationHandler.h,v $ $Revision: 1.19 $ $State: Exp $
7 *******************************************************************************/
8 
11 
12 #ifndef NAVIGATIONHANDLER_H_
13 #define NAVIGATIONHANDLER_H_
14 
15 #include "tmqt/eventHandler.h"
16 #include "vrfGuiCore/menuItems.h"
17 
18 #include <QtCore/QPoint>
19 #include <QtCore/QTimer>
20 
21 class DtTMViewportExtents;
22 class DtExtent;
23 class DtTMArea;
24 class DtModelData;
25 
28 
29 #include "tmEventHandler/tmEventHandlerDefines.h"
30 class DT_DLL_tmEventHandler DtNavigationHandler : public DtEventHandler
31 {
32  Q_OBJECT
33 
34 public:
36  DtNavigationHandler();
37 
39  virtual ~DtNavigationHandler();
40 
41 public:
43  static DtEventHandler* create(DtEventController* owner, void* usr);
44 
45  virtual bool aboutToDraw(DtTMMapArea* area, QPainter* pix);
46 
47  virtual bool userDefinedAction(DtUserDefinedType iAction, void* usr);
48 
49 public slots:
50  virtual bool mouseEvent(DtTMMapArea*, QMouseEvent* evnt, const DtPoint& pnt);
51  virtual bool keyboardEvent(DtTMMapArea* area, QKeyEvent* evnt);
52 
53  virtual void timedPan();
54 
55 protected:
57  virtual bool processNavigationKey(DtTMMapArea* area, int key, int state);
58 
59 protected:
60  virtual void mouseZoom(DtTMMapArea* area, QMouseEvent *e);
61 
62  virtual void reorderRectangle(QRect& rect);
63  virtual void resizeRectToFitAspectRatio(QRect& r, const double& ratio);
64  virtual void resizeRectToFitAspectRatio(DtExtent& ext, DtTMViewportExtents* extents);
65  virtual void resizeRectToFitAspectRatioFromCenter(DtExtent& ext, DtTMViewportExtents* extents);
66  virtual DtExtent zoom(const DtExtent& ext, double mag) const;
67 
68  virtual void zoomToExtent(DtTMMapArea* area);
69 
71  virtual DtExtent getZoomExtentRect(DtTMMapArea* area, const DtModelData* d) const;
72 
73  virtual void zoomToExtent(DtTMMapArea* area, const QRect& rect);
74  virtual DtExtent convertRectToExtent(DtTMMapArea* area, const QRect& rect) const;
75 
77  virtual void setCursor(QEvent*);
78 
79 protected:
80  DtUserDefinedType myNavigationDirection;
81  QTimer myPanTimer;
82  bool myShiftTracking;
83  QPoint myMouseBegin;
84  QPoint myMouseLast;
85  DtTMArea* myTimerMap;
86  int myKey;
87  int myState;
88  bool myLeftButton;
89  bool myMouseShiftMap;
90  bool myInMapShiftMode;
91 
92  DtPoint myMapBegin;
93  DtPoint myMapLast;
94 };
95 
96 #endif //NAVIGATIONHANDLER_H_
97 
Document ID: Generated on Tue Jan 29 18:21:16 EST 2013 from SVN revision 123193
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