KDChartPolarCoordinatePlane.h

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/****************************************************************************
**
** This file is part of the KD Chart library.
**
** SPDX-FileCopyrightText: 2001 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
**
** SPDX-License-Identifier: MIT
**
****************************************************************************/
 
#ifndef KDCHART_POLAR_COORDINATEPLANE_H
#define KDCHART_POLAR_COORDINATEPLANE_H
 
#include "KDChartAbstractCoordinatePlane.h"
 
namespace KDChart {
 
class Chart;
class PaintContext;
 
class KDCHART_EXPORT PolarCoordinatePlane : public AbstractCoordinatePlane
{
    Q_OBJECT
 
    Q_DISABLE_COPY(PolarCoordinatePlane)
    KDCHART_DECLARE_PRIVATE_DERIVED_PARENT(PolarCoordinatePlane, Chart *)
 
public:
    struct CoordinateTransformation;
    typedef QList<CoordinateTransformation> CoordinateTransformationList;
 
    explicit PolarCoordinatePlane(Chart *parent = nullptr);
    ~PolarCoordinatePlane() override;
 
    void addDiagram(AbstractDiagram *diagram) override;
 
    const QPointF translate(const QPointF &diagramPoint) const override;
    const QPointF translatePolar(const QPointF &diagramPoint) const;
 
    void setStartPosition(qreal degrees);
    qreal startPosition() const;
 
    qreal zoomFactorX() const override;
    qreal zoomFactorY() const override;
 
    void setZoomFactors(qreal factorX, qreal factorY) override;
    void setZoomFactorX(qreal factor) override;
    void setZoomFactorY(qreal factor) override;
 
    QPointF zoomCenter() const override;
 
    void setZoomCenter(const QPointF &center) override;
 
    void setGridAttributes(bool circular, const GridAttributes &);
 
    void resetGridAttributes(bool circular);
 
    const GridAttributes gridAttributes(bool circular) const;
 
    bool hasOwnGridAttributes(bool circular) const;
 
    qreal angleUnit() const;
    qreal radiusUnit() const;
 
    void paint(QPainter *) override;
 
protected:
    DataDimensionsList getDataDimensionsList() const override;
    void paintEvent(QPaintEvent *);
    void resizeEvent(QResizeEvent *);
 
    void layoutDiagrams() override;
protected Q_SLOTS:
    void slotLayoutChanged(AbstractDiagram *diagram);
    void adjustZoomAndRepaint();
 
private:
    void setHasOwnGridAttributes(bool circular, bool on);
};
}
 
#endif