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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qgraphicsgridlayoutengine_p.h"
#include "qgraphicslayoutitem_p.h"
#include "qgraphicslayout_p.h"
#include "qgraphicswidget.h"
QT_BEGIN_NAMESPACE
/*
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;
}
/*!
\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)
*/
bool QGraphicsGridLayoutEngineItem::isEmpty() const
{
return q_layoutItem->isEmpty();
}
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 { };
}
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
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