/****************************************************************************
**
** Copyright (C) 2014 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.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** use the contact form at http://qt.digia.com/contact-us.
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** Alternatively, this file may be used under the terms of the GNU Lesser
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****************************************************************************/
#ifndef QGRAPHICSLAYOUTSTYLEINFO_P_H
#define QGRAPHICSLAYOUTSTYLEINFO_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtGui/private/qabstractlayoutstyleinfo_p.h>
#include <QtWidgets/qstyleoption.h>

QT_BEGIN_NAMESPACE

class QStyle;
class QWidget;
class QGraphicsLayoutPrivate;

class QGraphicsLayoutStyleInfo : public QAbstractLayoutStyleInfo
{
public:
    QGraphicsLayoutStyleInfo(const QGraphicsLayoutPrivate *layout);
    ~QGraphicsLayoutStyleInfo();

    virtual qreal combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1,
                                        QLayoutPolicy::ControlTypes controls2,
                                        Qt::Orientation orientation) const Q_DECL_OVERRIDE;

    virtual qreal perItemSpacing(QLayoutPolicy::ControlType control1,
                                 QLayoutPolicy::ControlType control2,
                                 Qt::Orientation orientation) const Q_DECL_OVERRIDE;

    virtual qreal spacing(Qt::Orientation orientation) const Q_DECL_OVERRIDE;

    virtual qreal windowMargin(Qt::Orientation orientation) const Q_DECL_OVERRIDE;

    virtual void invalidate() Q_DECL_OVERRIDE
    {
        m_style = 0;
        QAbstractLayoutStyleInfo::invalidate();
    }

    QWidget *widget() const;
    QStyle *style() const;

private:
    const QGraphicsLayoutPrivate *m_layout;
    mutable QStyle *m_style;
    QStyleOption m_styleOption;
    QWidget *m_widget;
};

QT_END_NAMESPACE

#endif // QGRAPHICSLAYOUTSTYLEINFO_P_H