Qt 4.8
qgraphicslayout.h
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41 
42 #ifndef QGRAPHICSLAYOUT_H
43 #define QGRAPHICSLAYOUT_H
44 
45 #include <QtGui/qgraphicslayoutitem.h>
46 
48 
50 
51 QT_MODULE(Gui)
52 
53 #if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
54 
57 class QGraphicsWidget;
58 
60 {
61 public:
63  ~QGraphicsLayout();
64 
65  void setContentsMargins(qreal left, qreal top, qreal right, qreal bottom);
66  void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const;
67 
68  void activate();
69  bool isActivated() const;
70  virtual void invalidate();
71  virtual void updateGeometry();
72 
73  virtual void widgetEvent(QEvent *e);
74 
75  virtual int count() const = 0;
76  virtual QGraphicsLayoutItem *itemAt(int i) const = 0;
77  virtual void removeAt(int index) = 0;
78 
79  static void setInstantInvalidatePropagation(bool enable);
80  static bool instantInvalidatePropagation();
81 protected:
83  void addChildLayoutItem(QGraphicsLayoutItem *layoutItem);
84 
85 private:
89 };
90 
91 Q_DECLARE_INTERFACE(QGraphicsLayout, "com.trolltech.Qt.QGraphicsLayout")
92 
93 #endif
94 
96 
98 
99 #endif
100 
double qreal
Definition: qglobal.h:1193
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
#define Q_DISABLE_COPY(Class)
Disables the use of copy constructors and assignment operators for the given Class.
Definition: qglobal.h:2523
#define Q_DECLARE_INTERFACE(IFace, IId)
Definition: qobject.h:397
Q_CORE_EXPORT QTextStream & right(QTextStream &s)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
virtual void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const
This virtual function provides the left, top, right and bottom contents margins for this QGraphicsLay...
virtual void updateGeometry()
This virtual function discards any cached size hint information.
The QGraphicsLayoutItem class can be inherited to allow your custom items to be managed by layouts...
The QGraphicsLayout class provides the base class for all layouts in Graphics View.
Definition: qnamespace.h:54
quint16 index
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
#define class
The QEvent class is the base class of all event classes.
Definition: qcoreevent.h:56
Q_CORE_EXPORT QTextStream & left(QTextStream &s)
#define QT_END_HEADER
Definition: qglobal.h:137
The QGraphicsWidget class is the base class for all widget items in a QGraphicsScene.