74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#include "qgraphicsgridlayoutengine_p.h"
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#include "qgraphicslayoutitem_p.h"
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#include "qgraphicslayout_p.h"
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#include "qgraphicswidget.h"
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QT_BEGIN_NAMESPACE
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/*
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returns \c true if the size policy returns \c true for either hasHeightForWidth()
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or hasWidthForHeight()
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*/
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bool QGraphicsGridLayoutEngineItem::hasDynamicConstraint() const
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{
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return QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth()
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|| QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight();
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}
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Qt::Orientation QGraphicsGridLayoutEngineItem::dynamicConstraintOrientation() const
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{
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if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth())
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return Qt::Vertical;
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else //if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight())
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return Qt::Horizontal;
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}
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/*!
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\internal
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If this returns true, the layout will arrange just as if the item was never added to the layout.
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(Note that this shouldn't lead to a "double spacing" where the item was hidden)
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*/
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bool QGraphicsGridLayoutEngineItem::isEmpty() const
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{
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return q_layoutItem->isEmpty();
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}
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void QGraphicsGridLayoutEngine::setAlignment(QGraphicsLayoutItem *graphicsLayoutItem, Qt::Alignment alignment)
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{
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if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem)) {
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gridEngineItem->setAlignment(alignment);
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invalidate();
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}
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}
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Qt::Alignment QGraphicsGridLayoutEngine::alignment(QGraphicsLayoutItem *graphicsLayoutItem) const
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{
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if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem))
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return gridEngineItem->alignment();
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return { };
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}
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void QGraphicsGridLayoutEngine::setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
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Qt::Orientation orientation)
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{
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Q_ASSERT(stretch >= 0);
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if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
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item->setStretchFactor(stretch, orientation);
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}
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int QGraphicsGridLayoutEngine::stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const
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{
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if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
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return item->stretchFactor(orientation);
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return 0;
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}
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QT_END_NAMESPACE
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