00001 /**************************************************************************** 00002 ** 00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 00004 ** All rights reserved. 00005 ** Contact: Nokia Corporation (qt-info@nokia.com) 00006 ** 00007 ** This file is part of the QtGui module of the Qt Toolkit. 00008 ** 00009 ** $QT_BEGIN_LICENSE:LGPL$ 00010 ** Commercial Usage 00011 ** Licensees holding valid Qt Commercial licenses may use this file in 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. 00015 ** 00016 ** GNU Lesser General Public License Usage 00017 ** Alternatively, this file may be used under the terms of the GNU Lesser 00018 ** General Public License version 2.1 as published by the Free Software 00019 ** Foundation and appearing in the file LICENSE.LGPL included in the 00020 ** packaging of this file. Please review the following information to 00021 ** ensure the GNU Lesser General Public License version 2.1 requirements 00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00023 ** 00024 ** In addition, as a special exception, Nokia gives you certain additional 00025 ** rights. These rights are described in the Nokia Qt LGPL Exception 00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module. 00027 ** 00028 ** GNU General Public License Usage 00029 ** Alternatively, this file may be used under the terms of the GNU 00030 ** General Public License version 3.0 as published by the Free Software 00031 ** Foundation and appearing in the file LICENSE.GPL included in the 00032 ** packaging of this file. Please review the following information to 00033 ** ensure the GNU General Public License version 3.0 requirements will be 00034 ** met: http://www.gnu.org/copyleft/gpl.html. 00035 ** 00036 ** If you have questions regarding the use of this file, please contact 00037 ** Nokia at qt-info@nokia.com. 00038 ** $QT_END_LICENSE$ 00039 ** 00040 ****************************************************************************/ 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