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139 lines
3.0 KiB
139 lines
3.0 KiB
/*
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KDChart - a multi-platform charting engine
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*/
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/****************************************************************************
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** Copyright (C) 2001-2003 Klarälvdalens Datakonsult AB. All rights reserved.
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**
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** This file is part of the KDChart library.
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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 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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**
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** Licensees holding valid commercial KDChart licenses may use this file in
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** accordance with the KDChart Commercial License Agreement provided with
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** the Software.
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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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** See http://www.klaralvdalens-datakonsult.se/?page=products for
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** information about KDChart Commercial License Agreements.
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**
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** Contact info@klaralvdalens-datakonsult.se if any conditions of this
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** licensing are not clear to you.
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**
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**********************************************************************/
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#include "KDChartPlaneSeries.h"
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KDChartPlaneSeries::KDChartPlaneSeries( bool isX, double location )
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{
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setXAxis(isX);
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setLocation(location);
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}
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KDChartPlaneSeries::~KDChartPlaneSeries()
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{
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}
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uint KDChartPlaneSeries::rows() const
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{
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return 2;
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}
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const KDChartData& KDChartPlaneSeries::cell( uint row ) const
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{
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switch (row)
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{
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case 0: return _start;
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case 1: return _stop;
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default: Q_ASSERT(0);
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return _start; // won't get here
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}
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}
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void KDChartPlaneSeries::setCell( uint row, const KDChartData& element)
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{
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Q_ASSERT(0); // not possible
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// avoid compiler warnings
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row = (uint)element.doubleValue();
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}
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void KDChartPlaneSeries::expand( uint rows )
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{
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Q_ASSERT(0); // not possible
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// avoid compiler warnings
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rows = 0;
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}
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// NOW for our special API.
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bool KDChartPlaneSeries::isXAxis() const
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{
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return _isX;
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}
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double KDChartPlaneSeries::location() const
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{
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return _location;
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}
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void KDChartPlaneSeries::setXAxis( bool isX )
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{
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_isX = isX;
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update();
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}
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void KDChartPlaneSeries::setLocation( double location )
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{
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_location = location;
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update();
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}
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// this is the magic part of the class.
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// draw a line from DBL_MIN to DBL_MAX.
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void KDChartPlaneSeries::update()
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{
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if ( _isX )
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{
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_start = KDChartData( DBL_MIN, _location );
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_stop = KDChartData( DBL_MAX, _location );
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}
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else
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{
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_start = KDChartData( _location, DBL_MIN );
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_stop = KDChartData( _location, DBL_MAX );
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}
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}
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// we return !ok if its on the infinite axis
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double KDChartPlaneSeries::maxValue( int coordinate, bool &ok ) const
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{
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// coordinate==0 is the x value...
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// is not ok
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if ( _isX == (coordinate==0) )
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{
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ok = false;
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return 0;
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}
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ok = true;
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return _location;
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}
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double KDChartPlaneSeries::minValue( int coordinate, bool &ok ) const
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{
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return maxValue(coordinate,ok);
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}
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