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Diffstat (limited to 'src/widgets/graphicsview/qgraphicsgridlayoutengine.cpp')
-rw-r--r-- | src/widgets/graphicsview/qgraphicsgridlayoutengine.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/widgets/graphicsview/qgraphicsgridlayoutengine.cpp b/src/widgets/graphicsview/qgraphicsgridlayoutengine.cpp new file mode 100644 index 0000000000..6de41c308b --- /dev/null +++ b/src/widgets/graphicsview/qgraphicsgridlayoutengine.cpp @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2013 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 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, 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. +** +** 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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; +} + + +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 |