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60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/****************************************************************************
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** Copyright (C) 2001-2013 Klaralvdalens Datakonsult AB. All rights reserved.
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**
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** This file is part of the KD Chart library.
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**
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** Licensees holding valid commercial KD Chart licenses may use this file in
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** accordance with the KD Chart Commercial License Agreement provided with
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** the Software.
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**
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**
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 and version 3 as published by the
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** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** Contact info@kdab.com if any conditions of this licensing are not
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** clear to you.
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**
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**********************************************************************/
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#ifndef KDCHARTLEVEYJENNINGSGRID_H
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#define KDCHARTLEVEYJENNINGSGRID_H
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#include "KDChartCartesianGrid.h"
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namespace KDChart {
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class PaintContext;
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/**
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* \internal
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*
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* \brief Class for the grid in a Levey Jennings plane.
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*
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* The LeveyJenningsGrid interface is used
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* for calculating and for drawing
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* the horizonal grid lines, and the vertical grid lines
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* of a Levey Jennings coordinate plane.
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*/
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class LeveyJenningsGrid : public CartesianGrid
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{
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public:
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LeveyJenningsGrid() : CartesianGrid() {}
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virtual ~LeveyJenningsGrid() {}
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void drawGrid( PaintContext* context );
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private:
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DataDimensionsList calculateGrid( const DataDimensionsList& rawDataDimensions ) const;
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DataDimension calculateGridXY( const DataDimension& rawDataDimension,
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Qt::Orientation orientation, bool adjustLower, bool adjustUpper ) const;
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void calculateStepWidth( qreal start_, qreal end_, const QList<qreal>& granularities, Qt::Orientation orientation,
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qreal& stepWidth, qreal& subStepWidth, bool adjustLower, bool adjustUpper ) const;
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};
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}
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#endif
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