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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.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
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