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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "private/qdeclarativelayoutitem_p.h"
#include <QDebug>
#include <limits.h>
QT_BEGIN_NAMESPACE
/*!
\qmlclass LayoutItem QDeclarativeLayoutItem
\since 4.7
\brief The LayoutItem element allows declarative UI elements to be placed inside Qt's Graphics View layouts.
LayoutItem is a variant of \l Item with additional size hint properties. These properties provide the size hints
necessary for items to work in conjunction with Qt \l{Graphics View Framework}{Graphics View} layout classes
such as QGraphicsLinearLayout and QGraphicsGridLayout. The Qt layout mechanisms will resize the LayoutItem as appropriate,
taking its size hints into account, and you can propagate this to the other elements in your UI via anchors and bindings.
This is a QGraphicsLayoutItem subclass, and its properties merely expose the QGraphicsLayoutItem functionality to QML.
The \l{declarative/cppextensions/qgraphicslayouts/layoutitem}{LayoutItem example}
demonstrates how a LayoutItem can be used within a \l{Graphics View Framework}{Graphics View}
scene.
*/
/*!
\internal
\class QDeclarativeLayoutItem
\brief The QDeclarativeLayoutItem class allows you to place your QML UI elements inside Qt's Graphics View layouts.
*/
/*!
\qmlproperty QSizeF LayoutItem::maximumSize
The maximumSize property can be set to specify the maximum desired size of this LayoutItem
*/
/*!
\qmlproperty QSizeF LayoutItem::minimumSize
The minimumSize property can be set to specify the minimum desired size of this LayoutItem
*/
/*!
\qmlproperty QSizeF LayoutItem::preferredSize
The preferredSize property can be set to specify the preferred size of this LayoutItem
*/
QDeclarativeLayoutItem::QDeclarativeLayoutItem(QDeclarativeItem* parent)
: QDeclarativeItem(parent), m_maximumSize(INT_MAX,INT_MAX), m_minimumSize(0,0), m_preferredSize(0,0)
{
setGraphicsItem(this);
}
void QDeclarativeLayoutItem::setGeometry(const QRectF & rect)
{
setX(rect.x());
setY(rect.y());
setWidth(rect.width());
setHeight(rect.height());
}
QSizeF QDeclarativeLayoutItem::sizeHint(Qt::SizeHint w, const QSizeF &constraint) const
{
Q_UNUSED(constraint);
if(w == Qt::MinimumSize){
return m_minimumSize;
}else if(w == Qt::MaximumSize){
return m_maximumSize;
}else{
return m_preferredSize;
}
}
QT_END_NAMESPACE
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