KDChartAbstractAreaWidget.h

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/****************************************************************************
** Copyright (C) 2001-2020 Klaralvdalens Datakonsult AB.  All rights reserved.
**
** This file is part of the KD Chart library.
**
** Licensees holding valid commercial KD Chart licenses may use this file in
** accordance with the KD Chart Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/

#ifndef KDCHARTABSTRACTAREAWIDGET_H
#define KDCHARTABSTRACTAREAWIDGET_H

#include <QWidget>
#include <QPaintEvent>
#include <QPainter>
#include <QRect>

#include "KDChartAbstractAreaBase.h"

namespace KDChart {


class KDCHART_EXPORT AbstractAreaWidget : public QWidget, public AbstractAreaBase
{
    Q_OBJECT

    Q_DISABLE_COPY( AbstractAreaWidget )
    KDCHART_DECLARE_PRIVATE_DERIVED_QWIDGET( AbstractAreaWidget )

public:
    explicit AbstractAreaWidget( QWidget* parent = 0 );

    void paintEvent( QPaintEvent* event ) override;

    virtual void paintIntoRect( QPainter& painter, const QRect& rect );

    virtual void paint( QPainter* painter ) = 0;

    void paintAll( QPainter& painter );

    virtual void forceRebuild();

    virtual void needSizeHint();
    virtual void resizeLayout( const QSize& );

Q_SIGNALS:
    void positionChanged( AbstractAreaWidget * );

protected:
    ~AbstractAreaWidget() override ;
    QRect areaGeometry() const override;
    void positionHasChanged() override;
};

}
#endif // KDCHARTABSTRACTAREAWIDGET_H