KDChartBarDiagram.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 KDCHARTBARDIAGRAM_H
#define KDCHARTBARDIAGRAM_H
 
#include "KDChartAbstractCartesianDiagram.h"
#include "KDChartBarAttributes.h"
 
QT_BEGIN_NAMESPACE
class QPainter;
QT_END_NAMESPACE
 
namespace KDChart {
 
class ThreeDBarAttributes;
 
class KDCHART_EXPORT BarDiagram : public AbstractCartesianDiagram
{
    Q_OBJECT
 
    Q_DISABLE_COPY(BarDiagram)
 
    KDCHART_DECLARE_DERIVED_DIAGRAM(BarDiagram, CartesianCoordinatePlane)
 
public:
    class BarDiagramType;
    friend class BarDiagramType;
 
    explicit BarDiagram(
        QWidget *parent = nullptr, CartesianCoordinatePlane *plane = nullptr);
    ~BarDiagram() override;
 
    virtual BarDiagram *clone() const;
    bool compare(const BarDiagram *other) const;
 
    enum BarType
    {
        Normal,
        Stacked,
        Percent,
        Rows Q_DECL_ENUMERATOR_DEPRECATED 
    };
 
    void setType(const BarType type);
    BarType type() const;
 
    void setOrientation(Qt::Orientation orientation);
    Qt::Orientation orientation() const;
 
    void setBarAttributes(const BarAttributes &a);
    void setBarAttributes(int column, const BarAttributes &a);
    void setBarAttributes(const QModelIndex &index, const BarAttributes &a);
 
    BarAttributes barAttributes() const;
    BarAttributes barAttributes(int column) const;
    BarAttributes barAttributes(const QModelIndex &index) const;
 
    void setThreeDBarAttributes(const ThreeDBarAttributes &a);
    void setThreeDBarAttributes(int column, const ThreeDBarAttributes &a);
    void setThreeDBarAttributes(const QModelIndex &index,
                                const ThreeDBarAttributes &a);
    ThreeDBarAttributes threeDBarAttributes() const;
    ThreeDBarAttributes threeDBarAttributes(int column) const;
    ThreeDBarAttributes threeDBarAttributes(const QModelIndex &index) const;
 
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && defined(Q_COMPILER_MANGLES_RETURN_TYPE)
    // implement AbstractCartesianDiagram
    const int numberOfAbscissaSegments() const;
    const int numberOfOrdinateSegments() const;
#else
    // implement AbstractCartesianDiagram
    int numberOfAbscissaSegments() const override;
    int numberOfOrdinateSegments() const override;
#endif
 
protected:
    void paint(PaintContext *paintContext) override;
 
public:
    void resize(const QSizeF &area) override;
 
protected:
    qreal threeDItemDepth(const QModelIndex &index) const override;
    qreal threeDItemDepth(int column) const override;
    const QPair<QPointF, QPointF> calculateDataBoundaries() const override;
    void paintEvent(QPaintEvent *) override;
    void resizeEvent(QResizeEvent *) override;
 
private:
    void calculateValueAndGapWidths(int rowCount, int colCount,
                                    qreal groupWidth,
                                    qreal &barWidth,
                                    qreal &spaceBetweenBars,
                                    qreal &spaceBetweenGroups);
}; // End of class BarDiagram
}
 
#endif // KDCHARTBARDIAGRAM_H