KChartTernaryAxis.h

/*
 * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef KCHARTTERNARYAXIS_H
#define KCHARTTERNARYAXIS_H
 
 
#include <KChartAbstractAxis.h>
#include <KChartPosition.h>
#include <KChartTextAttributes.h>
 
class PrerenderedLabel;
 
namespace KChart {
 
    class AbstractTernaryDiagram;
 
    /**
      * The class for ternary axes
      */
    class KCHART_EXPORT TernaryAxis : public AbstractAxis
    {
        Q_OBJECT
 
        Q_DISABLE_COPY( TernaryAxis )
        KCHART_DECLARE_PRIVATE_DERIVED_PARENT( TernaryAxis, AbstractDiagram* )
 
    public:
        explicit TernaryAxis ( AbstractTernaryDiagram* diagram = nullptr );
        ~TernaryAxis() override;
 
        void  paintAll( QPainter &) override;
        void  paint (QPainter *) override;
        void  paintCtx (PaintContext *) override;
 
        QRect  geometry () const override;
        void  setGeometry (const QRect &rect) override;
 
        bool  isEmpty () const override;
        QSize  minimumSize () const override;
        QSize  maximumSize () const override;
        QSize  sizeHint () const override;
        Qt::Orientations  expandingDirections () const   override;
 
        virtual const Position  position () const;
        virtual void  setPosition (Position p);
 
        void setTitleText( const QString& text );
        QString titleText() const;
        void setTitleTextAttributes( const TextAttributes &a );
        TextAttributes titleTextAttributes() const;
        void resetTitleTextAttributes();
        bool hasDefaultTitleTextAttributes() const;
 
        QPair<QSizeF, QSizeF> requiredMargins() const;
 
    private:
        void updatePrerenderedLabels();
        // TODO, move class variables to private class
        QRect m_geometry;
        Position m_position;
 
        QString m_title;
        TextAttributes m_titleAttributes;
 
        // FIXME (Mirko): Move axis labels from grid to here, do not
        // expose them, just paint them. Use title text for text. Make
        // a function to allow the coordinate plane to calculate the
        // necessary margins, like this:
        PrerenderedLabel* m_label;
        PrerenderedLabel* m_fifty;
    };
 
    typedef QList<TernaryAxis*> TernaryAxisList;
}
 
#endif