KDChartPolarDiagram.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 KDCHARTPOLARDIAGRAM_H
#define KDCHARTPOLARDIAGRAM_H
 
#include "KDChartAbstractPolarDiagram.h"
#include "KDChartPosition.h"
 
QT_BEGIN_NAMESPACE
class QPolygonF;
QT_END_NAMESPACE
 
namespace KDChart {
 
class KDCHART_EXPORT PolarDiagram : public AbstractPolarDiagram
{
    Q_OBJECT
 
    Q_DISABLE_COPY(PolarDiagram)
    KDCHART_DECLARE_DERIVED_DIAGRAM(PolarDiagram, PolarCoordinatePlane)
 
public:
    explicit PolarDiagram(
        QWidget *parent = nullptr, PolarCoordinatePlane *plane = nullptr);
    ~PolarDiagram() override;
 
protected:
    // Implement AbstractDiagram
    void paint(PaintContext *paintContext) override;
 
public:
    void resize(const QSizeF &area) override;
 
    // Implement AbstractPolarDiagram
    qreal valueTotals() const override;
    qreal numberOfValuesPerDataset() const override;
    qreal numberOfGridRings() const override;
 
    virtual PolarDiagram *clone() const;
 
    Q_DECL_DEPRECATED void setZeroDegreePosition(int degrees);
    Q_DECL_DEPRECATED int zeroDegreePosition() const;
 
    void setRotateCircularLabels(bool rotateCircularLabels);
    bool rotateCircularLabels() const;
 
    void setCloseDatasets(bool closeDatasets);
    bool closeDatasets() const;
 
    void setShowDelimitersAtPosition(Position position,
                                     bool showDelimiters);
    void setShowLabelsAtPosition(Position position,
                                 bool showLabels);
 
    bool showDelimitersAtPosition(Position position) const;
 
    bool showLabelsAtPosition(Position position) const;
 
    virtual void paint(PaintContext *paintContext,
                       bool calculateListAndReturnScale,
                       qreal &newZoomX, qreal &newZoomY); // KDChart 3: references -> pointers
 
protected:
    const QPair<QPointF, QPointF> calculateDataBoundaries() const override;
    void paintEvent(QPaintEvent *) override;
    void resizeEvent(QResizeEvent *) override;
    virtual void paintPolarMarkers(PaintContext *ctx, const QPolygonF &polygon);
 
}; // End of class PolarDiagram
}
 
#endif // KDCHARTPOLARDIAGRAM_H