KChartAbstractAreaWidget.h

/*
 * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#ifndef KCHARTABSTRACTAREAWIDGET_H
#define KCHARTABSTRACTAREAWIDGET_H

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

#include "KChartAbstractAreaBase.h"

namespace KChart {


class KCHART_EXPORT AbstractAreaWidget : public QWidget, public AbstractAreaBase
{
    Q_OBJECT

    Q_DISABLE_COPY( AbstractAreaWidget )
    KCHART_DECLARE_PRIVATE_DERIVED_QWIDGET( AbstractAreaWidget )

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

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

}
#endif // KCHARTABSTRACTAREAWIDGET_H