KChartCartesianGrid.h

/*
 * 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 <https://www.gnu.org/licenses/>.
 */

#ifndef KCHARTCARTESIANGRID_H
#define KCHARTCARTESIANGRID_H

#include "KChartCartesianCoordinatePlane.h"
#include "KChartAbstractGrid.h"

namespace KChart {

    class PaintContext;
    class CartesianCoordinatePlane;

    class CartesianGrid : public AbstractGrid
    {
    public:
        CartesianGrid();
        virtual ~CartesianGrid();

        int minimalSteps() const;
        void setMinimalSteps(int minsteps);

        int maximalSteps() const;
        void setMaximalSteps(int maxsteps);

        void drawGrid( PaintContext* context ) override;

    private:
        int m_minsteps;
        int m_maxsteps;
        
        DataDimensionsList calculateGrid(
            const DataDimensionsList& rawDataDimensions ) const override;

        virtual DataDimension calculateGridXY(
            const DataDimension& rawDataDimension,
            Qt::Orientation orientation,
            bool adjustLower, bool adjustUpper ) const;

        virtual void calculateStepWidth(
            qreal start, qreal end,
            const QList<qreal>& granularities,
            Qt::Orientation orientation,
            qreal& stepWidth, qreal& subStepWidth,
            bool adjustLower, bool adjustUpper ) const;
    };

}

#endif