Qt 4.8
qdeclarativelayoutitem_p.h
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41 
42 #ifndef QDECLARATIVEGRAPHICSLAYOUTITEM_H
43 #define QDECLARATIVEGRAPHICSLAYOUTITEM_H
44 #include "qdeclarativeitem.h"
45 
46 #include <QGraphicsLayoutItem>
47 #include <QSizeF>
48 
50 
52 
53 QT_MODULE(Declarative)
54 
56 {
57  Q_OBJECT
58  Q_INTERFACES(QGraphicsLayoutItem)
59  QSizeF maximumSize;
60  QSizeF minimumSize;
61  QSizeF preferredSize;
62 public:
63  QDeclarativeLayoutItem(QDeclarativeItem* parent=0);
64 
65  QSizeF maximumSize() const { return m_maximumSize; }
66  void setMaximumSize(const QSizeF &s) { if(s==m_maximumSize) return; m_maximumSize = s; emit maximumSizeChanged(); }
67 
68  QSizeF minimumSize() const { return m_minimumSize; }
69  void setMinimumSize(const QSizeF &s) { if(s==m_minimumSize) return; m_minimumSize = s; emit minimumSizeChanged(); }
70 
71  QSizeF preferredSize() const { return m_preferredSize; }
72  void setPreferredSize(const QSizeF &s) { if(s==m_preferredSize) return; m_preferredSize = s; emit preferredSizeChanged(); }
73 
74  virtual void setGeometry(const QRectF & rect);
75 protected:
76  virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
77 
78 Q_SIGNALS:
79  void maximumSizeChanged();
80  void minimumSizeChanged();
81  void preferredSizeChanged();
82 
83 private:
87 };
88 
90 
92 
94 #endif
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QML_DECLARE_TYPE(TYPE)
Definition: qdeclarative.h:56
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
#define Q_SIGNALS
Definition: qobjectdefs.h:72
The QSizeF class defines the size of a two-dimensional object using floating point precision...
Definition: qsize.h:202
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
The QDeclarativeItem class provides the most basic of all visual items in QML.
#define emit
Definition: qobjectdefs.h:76
void setMaximumSize(const QSizeF &s)
The QGraphicsLayoutItem class can be inherited to allow your custom items to be managed by layouts...
#define Q_OBJECT
Definition: qobjectdefs.h:157
SizeHint
Definition: qnamespace.h:1708
#define Q_INTERFACES(x)
This macro tells Qt which interfaces the class implements.
Definition: qobjectdefs.h:79
#define class
#define QT_END_HEADER
Definition: qglobal.h:137
void setMinimumSize(const QSizeF &s)
void setPreferredSize(const QSizeF &s)