QGIS API Documentation  3.21.0-Master (909859188c)
qgsmodelviewtoolzoom.h
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1 /***************************************************************************
2  qgsmodelviewtoolzoom.h
3  -----------------------
4  Date : March 2020
5  Copyright : (C) 2020 Nyall Dawson
6  Email : nyall dot dawson at gmail dot com
7  ***************************************************************************
8  * *
9  * This program is free software; you can redistribute it and/or modify *
10  * it under the terms of the GNU General Public License as published by *
11  * the Free Software Foundation; either version 2 of the License, or *
12  * (at your option) any later version. *
13  * *
14  ***************************************************************************/
15 
16 #ifndef QGSMODELVIEWTOOLZOOM_H
17 #define QGSMODELVIEWTOOLZOOM_H
18 
19 #include "qgis_sip.h"
20 #include "qgis_gui.h"
21 #include "qgsmodelviewtool.h"
22 #include "qgsmodelviewrubberband.h"
23 #include <memory>
24 
25 #define SIP_NO_FILE
26 
32 class GUI_EXPORT QgsModelViewToolZoom : public QgsModelViewTool
33 {
34 
35  Q_OBJECT
36 
37  public:
38 
42  QgsModelViewToolZoom( QgsModelGraphicsView *view SIP_TRANSFERTHIS );
43 
44  void modelPressEvent( QgsModelViewMouseEvent *event ) override;
45  void modelMoveEvent( QgsModelViewMouseEvent *event ) override;
46  void modelReleaseEvent( QgsModelViewMouseEvent *event ) override;
47  void keyPressEvent( QKeyEvent *event ) override;
48  void keyReleaseEvent( QKeyEvent *event ) override;
49  void deactivate() override;
50 
51  protected:
52 
54  bool mMarqueeZoom = false;
55 
56  private:
57 
59  QPoint mMousePressStartPos;
60 
61  QPointF mRubberBandStartPos;
62 
64  std::unique_ptr< QgsModelViewRectangularRubberBand > mRubberBand;
65 
66  void startMarqueeZoom( QPointF scenePoint );
67 
68 };
69 
70 #endif // QGSMODELVIEWTOOLZOOM_H
A QgsModelViewMouseEvent is the result of a user interaction with the mouse on a QgsModelGraphicsView...
Model view tool for zooming into and out of the model.
Abstract base class for all model designer view tools.
virtual void keyReleaseEvent(QKeyEvent *event)
Key release event for overriding.
virtual void modelMoveEvent(QgsModelViewMouseEvent *event)
Mouse move event for overriding.
virtual void deactivate()
Called when tool is deactivated.
virtual void modelPressEvent(QgsModelViewMouseEvent *event)
Mouse press event for overriding.
virtual void keyPressEvent(QKeyEvent *event)
Key press event for overriding.
virtual void modelReleaseEvent(QgsModelViewMouseEvent *event)
Mouse release event for overriding.
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53