KDChartAbstractGrid.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 KDCHARTABSTRACTGRID_H
#define KDCHARTABSTRACTGRID_H
 
#include <QPair>
 
#include "KDChartAbstractCoordinatePlane.h"
#include "KDChartAbstractDiagram.h"
#include "KDChartCartesianAxis.h"
#include "KDChartGridAttributes.h"
 
namespace KDChart {
 
class PaintContext;
 
class AbstractGrid
{
public:
    virtual ~AbstractGrid();
 
protected:
    AbstractGrid();
 
public:
    DataDimensionsList updateData(AbstractCoordinatePlane *plane);
 
    virtual void drawGrid(PaintContext *context) = 0;
 
    void setNeedRecalculate();
 
    static bool isBoundariesValid(const QRectF &r);
 
    static bool isBoundariesValid(const QPair<QPointF, QPointF> &b);
 
    static bool isBoundariesValid(const DataDimensionsList &l);
 
    static bool isValueValid(const qreal &r);
 
    static void adjustLowerUpperRange(
        qreal &start, qreal &end,
        qreal stepWidth,
        bool adjustLower, bool adjustUpper);
 
    static const DataDimension adjustedLowerUpperRange(
        const DataDimension &dim,
        bool adjustLower, bool adjustUpper);
 
    GridAttributes gridAttributes;
 
protected:
    DataDimensionsList mDataDimensions;
    AbstractCoordinatePlane *mPlane = nullptr;
 
private:
    virtual DataDimensionsList calculateGrid(const DataDimensionsList &rawDataDimensions) const = 0;
    DataDimensionsList mCachedRawDataDimensions;
};
}
 
#endif