qgraphicslayout.h

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00001 /****************************************************************************
00002 **
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00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
00006 **
00007 ** This file is part of the QtGui module of the Qt Toolkit.
00008 **
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00010 ** Commercial Usage
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00012 ** accordance with the Qt Commercial License Agreement provided with the
00013 ** Software or, alternatively, in accordance with the terms contained in
00014 ** a written agreement between you and Nokia.
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00016 ** GNU Lesser General Public License Usage
00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
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00028 ** GNU General Public License Usage
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00041 
00042 #ifndef QGRAPHICSLAYOUT_H
00043 #define QGRAPHICSLAYOUT_H
00044 
00045 #include <QtGui/qgraphicslayoutitem.h>
00046 
00047 QT_BEGIN_HEADER
00048 
00049 QT_BEGIN_NAMESPACE
00050 
00051 QT_MODULE(Gui)
00052 
00053 #if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
00054 
00055 class QGraphicsLayoutPrivate;
00056 class QGraphicsLayoutItem;
00057 class QGraphicsWidget;
00058 
00059 class Q_GUI_EXPORT QGraphicsLayout : public QGraphicsLayoutItem
00060 {
00061 public:
00062     QGraphicsLayout(QGraphicsLayoutItem *parent = 0);
00063     ~QGraphicsLayout();
00064 
00065     void setContentsMargins(qreal left, qreal top, qreal right, qreal bottom);
00066     void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const;
00067 
00068     void activate();
00069     bool isActivated() const;
00070     virtual void invalidate();
00071     virtual void updateGeometry();
00072 
00073     virtual void widgetEvent(QEvent *e);
00074 
00075     virtual int count() const = 0;
00076     virtual QGraphicsLayoutItem *itemAt(int i) const = 0;
00077     virtual void removeAt(int index) = 0;
00078 
00079 protected:
00080     QGraphicsLayout(QGraphicsLayoutPrivate &, QGraphicsLayoutItem *);
00081     void addChildLayoutItem(QGraphicsLayoutItem *layoutItem);
00082 
00083 private:
00084     Q_DISABLE_COPY(QGraphicsLayout)
00085     Q_DECLARE_PRIVATE(QGraphicsLayout)
00086     friend class QGraphicsWidget;
00087 };
00088 
00089 Q_DECLARE_INTERFACE(QGraphicsLayout, "com.trolltech.Qt.QGraphicsLayout")
00090 
00091 #endif
00092 
00093 QT_END_NAMESPACE
00094 
00095 QT_END_HEADER
00096 
00097 #endif
00098