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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGRAPHICSLAYOUTITEM_H
#define QGRAPHICSLAYOUTITEM_H
#include <QtCore/qscopedpointer.h>
#include <QtGui/qsizepolicy.h>
#include <QtGui/qevent.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
class QGraphicsLayoutItemPrivate;
class QGraphicsItem;
class Q_GUI_EXPORT QGraphicsLayoutItem
{
public:
QGraphicsLayoutItem(QGraphicsLayoutItem *parent = 0, bool isLayout = false);
virtual ~QGraphicsLayoutItem();
void setSizePolicy(const QSizePolicy &policy);
void setSizePolicy(QSizePolicy::Policy hPolicy, QSizePolicy::Policy vPolicy, QSizePolicy::ControlType controlType = QSizePolicy::DefaultType);
QSizePolicy sizePolicy() const;
void setMinimumSize(const QSizeF &size);
inline void setMinimumSize(qreal w, qreal h);
QSizeF minimumSize() const;
void setMinimumWidth(qreal width);
inline qreal minimumWidth() const;
void setMinimumHeight(qreal height);
inline qreal minimumHeight() const;
void setPreferredSize(const QSizeF &size);
inline void setPreferredSize(qreal w, qreal h);
QSizeF preferredSize() const;
void setPreferredWidth(qreal width);
inline qreal preferredWidth() const;
void setPreferredHeight(qreal height);
inline qreal preferredHeight() const;
void setMaximumSize(const QSizeF &size);
inline void setMaximumSize(qreal w, qreal h);
QSizeF maximumSize() const;
void setMaximumWidth(qreal width);
inline qreal maximumWidth() const;
void setMaximumHeight(qreal height);
inline qreal maximumHeight() const;
virtual void setGeometry(const QRectF &rect);
QRectF geometry() const;
virtual void getContentsMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const;
QRectF contentsRect() const;
QSizeF effectiveSizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;
virtual void updateGeometry(); //### rename to sizeHintChanged()
QGraphicsLayoutItem *parentLayoutItem() const;
void setParentLayoutItem(QGraphicsLayoutItem *parent);
bool isLayout() const;
// ###Qt5: Make automatic reparenting work regardless of item/object/widget type.
QGraphicsItem *graphicsItem() const;
bool ownedByLayout() const;
protected:
void setGraphicsItem(QGraphicsItem *item);
void setOwnedByLayout(bool ownedByLayout);
QGraphicsLayoutItem(QGraphicsLayoutItemPrivate &dd);
virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const = 0;
QScopedPointer<QGraphicsLayoutItemPrivate> d_ptr;
private:
QSizeF *effectiveSizeHints(const QSizeF &constraint) const;
Q_DECLARE_PRIVATE(QGraphicsLayoutItem)
friend class QGraphicsLayout;
};
Q_DECLARE_INTERFACE(QGraphicsLayoutItem, "com.trolltech.Qt.QGraphicsLayoutItem")
inline void QGraphicsLayoutItem::setMinimumSize(qreal aw, qreal ah)
{ setMinimumSize(QSizeF(aw, ah)); }
inline void QGraphicsLayoutItem::setPreferredSize(qreal aw, qreal ah)
{ setPreferredSize(QSizeF(aw, ah)); }
inline void QGraphicsLayoutItem::setMaximumSize(qreal aw, qreal ah)
{ setMaximumSize(QSizeF(aw, ah)); }
inline qreal QGraphicsLayoutItem::minimumWidth() const
{ return effectiveSizeHint(Qt::MinimumSize).width(); }
inline qreal QGraphicsLayoutItem::minimumHeight() const
{ return effectiveSizeHint(Qt::MinimumSize).height(); }
inline qreal QGraphicsLayoutItem::preferredWidth() const
{ return effectiveSizeHint(Qt::PreferredSize).width(); }
inline qreal QGraphicsLayoutItem::preferredHeight() const
{ return effectiveSizeHint(Qt::PreferredSize).height(); }
inline qreal QGraphicsLayoutItem::maximumWidth() const
{ return effectiveSizeHint(Qt::MaximumSize).width(); }
inline qreal QGraphicsLayoutItem::maximumHeight() const
{ return effectiveSizeHint(Qt::MaximumSize).height(); }
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif
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