QGIS API Documentation  3.13.0-Master (b73bd58cfb)
qgsmapcanvasannotationitem.h
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1 /***************************************************************************
2  qgsmapcanvasannotationitem.h
3  ----------------------------
4  begin : January 2017
5  copyright : (C) 2017 by Nyall Dawson
6  email : nyall dot dawson at gmail dot com
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSMAPCANVASANNOTATIONITEM_H
19 #define QGSMAPCANVASANNOTATIONITEM_H
20 
21 #ifdef SIP_RUN
22 % ModuleHeaderCode
23 // For ConvertToSubClassCode.
25 % End
26 #endif
27 
28 #include "qgsmapcanvasitem.h"
29 #include "qgis_gui.h"
30 
31 class QgsAnnotation;
32 
39 class GUI_EXPORT QgsMapCanvasAnnotationItem: public QObject, public QgsMapCanvasItem
40 {
41  Q_OBJECT
42 
43 #ifdef SIP_RUN
45  if ( dynamic_cast<QgsMapCanvasAnnotationItem *>( sipCpp ) )
46  sipType = sipType_QgsMapCanvasAnnotationItem;
47  else
48  sipType = nullptr;
49  SIP_END
50 #endif
51 
52  public:
53 
56  {
67  ResizeFrameRightDown
68  };
69 
74 
79  const QgsAnnotation *annotation() const { return mAnnotation; } SIP_SKIP
80 
84  QgsAnnotation *annotation() { return mAnnotation; }
85 
86  void updatePosition() override;
87 
88  QRectF boundingRect() const override;
89 
90  void paint( QPainter *painter ) override;
91 
95  MouseMoveAction moveActionForPosition( QPointF pos ) const;
96 
100  Qt::CursorShape cursorShapeForAction( MouseMoveAction moveAction ) const;
101 
102  private slots:
103 
104  void updateBoundingRect();
105 
106  void onCanvasLayersChanged();
107 
109  void setFeatureForMapPosition();
110 
111  private:
112 
114  void drawSelectionBoxes( QPainter *p ) const;
115 
117  double scaledSymbolSize() const;
118 
119  QgsAnnotation *mAnnotation = nullptr;
120 
122  QRectF mBoundingRect;
123 
124 };
125 
126 #endif // QGSMAPCANVASANNOTATIONITEM_H
const QgsAnnotation * annotation() const
Returns the item&#39;s annotation.
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
An abstract class for items that can be placed on the map canvas.
Moving position of frame relative to annotation.
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:78
Abstract base class for annotation items which are drawn over a map.
Definition: qgsannotation.h:49
QRectF boundingRect() const override
#define SIP_SKIP
Definition: qgis_sip.h:126
#define SIP_TRANSFER
Definition: qgis_sip.h:36
#define SIP_END
Definition: qgis_sip.h:189
virtual void paint(QPainter *painter)=0
function to be implemented by derived classes
MouseMoveAction
Mouse actions for interacting with item.
QgsAnnotation * annotation()
Returns the item&#39;s annotation.
#define SIP_CONVERT_TO_SUBCLASS_CODE(code)
Definition: qgis_sip.h:172
virtual void updatePosition()
called on changed extent or resize event to update position of the item
An interactive map canvas item which displays a QgsAnnotation.