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Diffstat (limited to 'src/widgets/graphicsview/qgraphicslayoutstyleinfo.cpp')
| -rw-r--r-- | src/widgets/graphicsview/qgraphicslayoutstyleinfo.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/widgets/graphicsview/qgraphicslayoutstyleinfo.cpp b/src/widgets/graphicsview/qgraphicslayoutstyleinfo.cpp new file mode 100644 index 0000000000..3270fc20a3 --- /dev/null +++ b/src/widgets/graphicsview/qgraphicslayoutstyleinfo.cpp @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** 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 "qgraphicslayoutstyleinfo_p.h" +#include "qgraphicslayout_p.h" +#include "qgraphicswidget.h" +#include <QtWidgets/qstyle.h> +#include <QtWidgets/qwidget.h> +#include <QtWidgets/qapplication.h> + +QT_BEGIN_NAMESPACE + +QGraphicsLayoutStyleInfo::QGraphicsLayoutStyleInfo(const QGraphicsLayoutPrivate *layout) + : m_layout(layout), m_style(0) +{ + m_widget = new QWidget; // pixelMetric might need a widget ptr + if (m_widget) + m_styleOption.initFrom(m_widget); + m_isWindow = m_styleOption.state & QStyle::State_Window; +} + +QGraphicsLayoutStyleInfo::~QGraphicsLayoutStyleInfo() +{ + delete m_widget; +} + +qreal QGraphicsLayoutStyleInfo::combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1, + QLayoutPolicy::ControlTypes controls2, + Qt::Orientation orientation) const +{ + Q_ASSERT(style()); + return style()->combinedLayoutSpacing(QSizePolicy::ControlTypes(int(controls1)), QSizePolicy::ControlTypes(int(controls2)), + orientation, const_cast<QStyleOption*>(&m_styleOption), widget()); +} + +qreal QGraphicsLayoutStyleInfo::perItemSpacing(QLayoutPolicy::ControlType control1, + QLayoutPolicy::ControlType control2, + Qt::Orientation orientation) const +{ + Q_ASSERT(style()); + return style()->layoutSpacing(QSizePolicy::ControlType(control1), QSizePolicy::ControlType(control2), + orientation, const_cast<QStyleOption*>(&m_styleOption), widget()); +} + +qreal QGraphicsLayoutStyleInfo::spacing(Qt::Orientation orientation) const +{ + Q_ASSERT(style()); + return style()->pixelMetric(orientation == Qt::Horizontal ? QStyle::PM_LayoutHorizontalSpacing : QStyle::PM_LayoutVerticalSpacing); +} + +qreal QGraphicsLayoutStyleInfo::windowMargin(Qt::Orientation orientation) const +{ + return style()->pixelMetric(orientation == Qt::Vertical + ? QStyle::PM_LayoutBottomMargin + : QStyle::PM_LayoutRightMargin, + const_cast<QStyleOption*>(&m_styleOption), widget()); +} + +QWidget *QGraphicsLayoutStyleInfo::widget() const { return m_widget; } + +QStyle *QGraphicsLayoutStyleInfo::style() const +{ + if (!m_style) { + Q_ASSERT(m_layout); + QGraphicsItem *item = m_layout->parentItem(); + m_style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : QApplication::style(); + } + return m_style; +} + +QT_END_NAMESPACE |