QGIS API Documentation  2.99.0-Master (a18066b)
qgscomposeritemgroup.h
Go to the documentation of this file.
1 /***************************************************************************
2  qgscomposeritemgroup.h
3  ----------------------
4  begin : 2nd June 2008
5  copyright : (C) 2008 by Marco Hugentobler
6  email : marco dot hugentobler at karto dot baug dot ethz dot ch
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 #ifndef QGSCOMPOSERITEMGROUP_H
18 #define QGSCOMPOSERITEMGROUP_H
19 
20 #include "qgis_core.h"
21 #include "qgscomposeritem.h"
22 #include <QSet>
23 
27 class CORE_EXPORT QgsComposerItemGroup: public QgsComposerItem
28 {
29  Q_OBJECT
30  public:
33 
35  virtual int type() const override { return ComposerItemGroup; }
36 
39  void addItem( QgsComposerItem* item ) override;
41  void removeItems() override;
43  void paint( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget = nullptr ) override;
44 
47  void setSceneRect( const QRectF& rectangle ) override;
48 
49  //overridden to also hide grouped items
50  virtual void setVisibility( const bool visible ) override;
51 
56  bool writeXml( QDomElement& elem, QDomDocument & doc ) const override;
57 
62  bool readXml( const QDomElement& itemElem, const QDomDocument& doc ) override;
63 
64  QSet<QgsComposerItem*> items() { return mItems; }
65 
66  signals:
67  void childItemDeleted( QgsComposerItem* item );
68 
69  public slots:
70  void itemDestroyed();
71 
72  protected:
73  void drawFrame( QPainter* p ) override;
74 
75  private:
76  QSet<QgsComposerItem*> mItems;
77  QRectF mBoundingRectangle;
78 };
79 
80 #endif
virtual void removeItems()
A item that forms part of a map composition.
A container for grouping several QgsComposerItems.
virtual void drawFrame(QPainter *p)
Draw black frame around item.
QSet< QgsComposerItem * > items()
virtual bool readXml(const QDomElement &itemElem, const QDomDocument &doc)
Sets item state from DOM element.
Graphics scene for map printing.
virtual void addItem(QgsComposerItem *item)
Composite operations for item groups do nothing per default.
friend class QgsComposerItemGroup
virtual void setSceneRect(const QRectF &rectangle)
Sets this items bound in scene coordinates such that 1 item size units corresponds to 1 scene size un...
virtual bool writeXml(QDomElement &elem, QDomDocument &doc) const
Stores item state in DOM element.
virtual void setVisibility(const bool visible)
Sets visibility for item.
virtual int type() const override
Return correct graphics item type.