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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgraphicsgridlayoutengine_p.h"
#ifndef QT_NO_GRAPHICSVIEW
#include "qgraphicslayoutitem_p.h"
#include "qgraphicslayout_p.h"
#include "qgraphicswidget.h"
#include <private/qgraphicswidget_p.h>
QT_BEGIN_NAMESPACE
bool QGraphicsGridLayoutEngineItem::isHidden() const
{
if (QGraphicsItem *item = q_layoutItem->graphicsItem())
return QGraphicsItemPrivate::get(item)->explicitlyHidden;
return false;
}
/*!
\internal
If this returns true, the layout will arrange just as if the item was never added to the layout.
(Note that this shouldn't lead to a "double spacing" where the item was hidden)
### Qt6: Move to QGraphicsLayoutItem and make virtual
*/
bool QGraphicsGridLayoutEngineItem::isIgnored() const
{
return isHidden() && !q_layoutItem->sizePolicy().retainSizeWhenHidden();
}
/*
returns \c true if the size policy returns \c true for either hasHeightForWidth()
or hasWidthForHeight()
*/
bool QGraphicsGridLayoutEngineItem::hasDynamicConstraint() const
{
return QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth()
|| QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight();
}
Qt::Orientation QGraphicsGridLayoutEngineItem::dynamicConstraintOrientation() const
{
if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth())
return Qt::Vertical;
else //if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight())
return Qt::Horizontal;
}
void QGraphicsGridLayoutEngine::setAlignment(QGraphicsLayoutItem *graphicsLayoutItem, Qt::Alignment alignment)
{
if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem)) {
gridEngineItem->setAlignment(alignment);
invalidate();
}
}
Qt::Alignment QGraphicsGridLayoutEngine::alignment(QGraphicsLayoutItem *graphicsLayoutItem) const
{
if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem))
return gridEngineItem->alignment();
return 0;
}
void QGraphicsGridLayoutEngine::setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
Qt::Orientation orientation)
{
Q_ASSERT(stretch >= 0);
if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
item->setStretchFactor(stretch, orientation);
}
int QGraphicsGridLayoutEngine::stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const
{
if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
return item->stretchFactor(orientation);
return 0;
}
QT_END_NAMESPACE
#endif // QT_NO_GRAPHICSVIEW
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