QGIS API Documentation 3.29.0-Master (8c80f25a4f)
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
31class QgsAnnotation;
32
39class GUI_EXPORT QgsMapCanvasAnnotationItem: public QObject, public QgsMapCanvasItem
40{
41 Q_OBJECT
42
43#ifdef SIP_RUN
45 if ( dynamic_cast<QgsMapCanvasAnnotationItem *>( sipCpp ) )
46 {
47 sipType = sipType_QgsMapCanvasAnnotationItem;
48 *sipCppRet = dynamic_cast<QgsMapCanvasAnnotationItem *>( sipCpp );
49 }
50 else
51 sipType = nullptr;
53#endif
54
55 public:
56
59 {
70 ResizeFrameRightDown
71 };
72
77
82 const QgsAnnotation *annotation() const { return mAnnotation; } SIP_SKIP
83
87 QgsAnnotation *annotation() { return mAnnotation; }
88
89 void updatePosition() override;
90
91 QRectF boundingRect() const override;
92
93 void paint( QPainter *painter ) override;
94
98 MouseMoveAction moveActionForPosition( QPointF pos ) const;
99
103 Qt::CursorShape cursorShapeForAction( MouseMoveAction moveAction ) const;
104
105 private slots:
106
107 void updateBoundingRect();
108
109 void onCanvasLayersChanged();
110
112 void setFeatureForMapPosition();
113
114 void annotationDeleted();
115
116 private:
117
119 void drawSelectionBoxes( QPainter *p ) const;
120
122 double scaledSymbolSize() const;
123
124 QgsAnnotation *mAnnotation = nullptr;
125
127 QRectF mBoundingRect;
128
129};
130
131#endif // QGSMAPCANVASANNOTATIONITEM_H
Abstract base class for annotation items which are drawn over a map.
Definition: qgsannotation.h:54
An interactive map canvas item which displays a QgsAnnotation.
const QgsAnnotation * annotation() const
Returns the item's annotation.
QgsAnnotation * annotation()
Returns the item's annotation.
MouseMoveAction
Mouse actions for interacting with item.
@ ResizeFrameRightUp
Resize frame right up.
@ MoveFramePosition
Moving position of frame relative to annotation.
@ MoveMapPosition
Moving annotation map position.
@ ResizeFrameLeftUp
Resize frame left up.
@ ResizeFrameLeftDown
Resize frame left down.
An abstract class for items that can be placed on the map canvas.
QRectF boundingRect() const override
virtual void paint(QPainter *painter)=0
function to be implemented by derived classes
virtual void updatePosition()
called on changed extent or resize event to update position of the item
Map canvas is a class for displaying all GIS data types on a canvas.
Definition: qgsmapcanvas.h:90
#define SIP_CONVERT_TO_SUBCLASS_CODE(code)
Definition: qgis_sip.h:186
#define SIP_TRANSFERTHIS
Definition: qgis_sip.h:53
#define SIP_SKIP
Definition: qgis_sip.h:126
#define SIP_TRANSFER
Definition: qgis_sip.h:36
#define SIP_END
Definition: qgis_sip.h:203