KDChartLineDiagram.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 KDCHARTLINEDIAGRAM_H
#define KDCHARTLINEDIAGRAM_H
 
#include "KDChartAbstractCartesianDiagram.h"
#include "KDChartLineAttributes.h"
#include "KDChartValueTrackerAttributes.h"
 
QT_BEGIN_NAMESPACE
class QPainter;
class QPolygonF;
QT_END_NAMESPACE
 
namespace KDChart {
 
class ThreeDLineAttributes;
 
class KDCHART_EXPORT LineDiagram : public AbstractCartesianDiagram
{
    Q_OBJECT
 
    Q_DISABLE_COPY(LineDiagram)
    //    KDCHART_DECLARE_PRIVATE_DERIVED_PARENT( LineDiagram, CartesianCoordinatePlane * )
 
    KDCHART_DECLARE_DERIVED_DIAGRAM(LineDiagram, CartesianCoordinatePlane)
 
public:
    class LineDiagramType;
    friend class LineDiagramType;
 
    explicit LineDiagram(QWidget *parent = nullptr, CartesianCoordinatePlane *plane = nullptr);
    ~LineDiagram() override;
 
    virtual LineDiagram *clone() const;
 
    bool compare(const LineDiagram *other) const;
 
    enum LineType
    {
        Normal = 0,
        Stacked = 1,
        Percent = 2
    };
 
    void setType(const LineType type);
    LineType type() const;
 
    void setCenterDataPoints(bool center);
    bool centerDataPoints() const;
 
    void setReverseDatasetOrder(bool reverse);
    bool reverseDatasetOrder() const;
 
    void setLineAttributes(const LineAttributes &a);
    void setLineAttributes(int column, const LineAttributes &a);
    void setLineAttributes(const QModelIndex &index, const LineAttributes &a);
    void resetLineAttributes(int column);
    void resetLineAttributes(const QModelIndex &index);
    LineAttributes lineAttributes() const;
    LineAttributes lineAttributes(int column) const;
    LineAttributes lineAttributes(const QModelIndex &index) const;
 
    void setThreeDLineAttributes(const ThreeDLineAttributes &a);
    void setThreeDLineAttributes(int column, const ThreeDLineAttributes &a);
    void setThreeDLineAttributes(const QModelIndex &index,
                                 const ThreeDLineAttributes &a);
 
    ThreeDLineAttributes threeDLineAttributes() const;
    ThreeDLineAttributes threeDLineAttributes(int column) const;
    ThreeDLineAttributes threeDLineAttributes(const QModelIndex &index) const;
 
    void setValueTrackerAttributes(const QModelIndex &index,
                                   const ValueTrackerAttributes &a);
    ValueTrackerAttributes valueTrackerAttributes(const QModelIndex &index) const;
 
    void setLineTension(qreal tenson);
    qreal lineTension() const;
 
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && defined(Q_COMPILER_MANGLES_RETURN_TYPE)
    // implement AbstractCartesianDiagram
    /* reimp */
    const int numberOfAbscissaSegments() const;
    /* reimp */
    const int numberOfOrdinateSegments() const;
#else
    // implement AbstractCartesianDiagram
    /* reimp */
    int numberOfAbscissaSegments() const override;
    /* reimp */
    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;
}; // End of class KDChartLineDiagram
}
 
#endif // KDCHARTLINEDIAGRAM_H