qabstractlayoutstyleinfo_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
 
#ifndef QABSTRACTLAYOUTSTYLEINFO_P_H
#define QABSTRACTLAYOUTSTYLEINFO_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/qtguiglobal_p.h>
#include <QtCore/qnamespace.h>
#include "qlayoutpolicy_p.h"
 
QT_BEGIN_NAMESPACE
 
 
class Q_GUI_EXPORT QAbstractLayoutStyleInfo {
public:
 
    QAbstractLayoutStyleInfo() : m_isWindow(false) {}
    virtual ~QAbstractLayoutStyleInfo() {}
    virtual qreal combinedLayoutSpacing(QLayoutPolicy::ControlTypes /*controls1*/,
                                        QLayoutPolicy::ControlTypes /*controls2*/, Qt::Orientation /*orientation*/) const {
        return -1;
    }
 
    virtual qreal perItemSpacing(QLayoutPolicy::ControlType /*control1*/,
                                 QLayoutPolicy::ControlType /*control2*/,
                                 Qt::Orientation /*orientation*/) const {
        return -1;
    }
 
    virtual qreal spacing(Qt::Orientation orientation) const = 0;
 
    virtual bool hasChangedCore() const { return false; }   // ### Remove when usage is gone from subclasses
 
    virtual void invalidate() { }
 
    virtual qreal windowMargin(Qt::Orientation orientation) const = 0;
 
    bool isWindow() const {
        return m_isWindow;
    }
 
protected:
    unsigned m_isWindow : 1;
    mutable unsigned m_hSpacingState: 2;
    mutable unsigned m_vSpacingState: 2;
    mutable qreal m_spacing[2];
};
 
QT_END_NAMESPACE
 
#endif // QABSTRACTLAYOUTSTYLEINFO_P_H