/*
 * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
 *
 * This file is part of the KD Chart library.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#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 = 0 );
        ~TernaryAxis();

        void  paintAll( QPainter &) Q_DECL_OVERRIDE;
        void  paint (QPainter *) Q_DECL_OVERRIDE;
        void  paintCtx (PaintContext *) Q_DECL_OVERRIDE;

        QRect  geometry () const Q_DECL_OVERRIDE;
        void  setGeometry (const QRect &rect) Q_DECL_OVERRIDE;

        bool  isEmpty () const Q_DECL_OVERRIDE;
        QSize  minimumSize () const Q_DECL_OVERRIDE;
        QSize  maximumSize () const Q_DECL_OVERRIDE;
        QSize  sizeHint () const Q_DECL_OVERRIDE;
        Qt::Orientations  expandingDirections () const   Q_DECL_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
