KDChartCartesianAxis.cpp File Reference

#include "KDChartCartesianAxis.h"
#include "KDChartCartesianAxis_p.h"
#include <cmath>
#include <QtDebug>
#include <QPainter>
#include <QPen>
#include <QBrush>
#include <QApplication>
#include "KDChartPaintContext.h"
#include "KDChartChart.h"
#include "KDChartAbstractCartesianDiagram.h"
#include "KDChartAbstractGrid.h"
#include "KDChartPainterSaver_p.h"
#include "KDChartLayoutItems.h"
#include "KDChartBarDiagram.h"
#include "KDChartStockDiagram.h"
#include "KDChartLineDiagram.h"
#include "KDChartPrintingParameters.h"
#include <KDABLibFakes>
#include <limits>

Include dependency graph for KDChartCartesianAxis.cpp:

Go to the source code of this file.

Defines
#define	d   (d_func())
Functions
static void	calculateNextLabel (qreal &labelValue, qreal step, bool isLogarithmic, qreal min)
static void	calculateOverlap (int i, int first, int last, int measure, bool centerAbscissaTicks, int &firstOverlap, int &lastOverlap)
static bool	referenceDiagramIsBarDiagram (const AbstractDiagram *diagram)
static bool	referenceDiagramNeedsCenteredAbscissaTicks (const AbstractDiagram *diagram)

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Define Documentation

#define d   (d_func())

Definition at line 54 of file KDChartCartesianAxis.cpp.

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Function Documentation

static void calculateNextLabel	(	qreal &	labelValue,
		qreal	step,
		bool	isLogarithmic,
		qreal	min
	)			[static]

Definition at line 433 of file KDChartCartesianAxis.cpp.

Referenced by KDChart::CartesianAxis::paintCtx().

{
    if ( isLogarithmic ){
        if( step > 0.0 )
            labelValue *= 10.0;
        else
            labelValue /= 10.0;
        if( labelValue == 0.0 )
            labelValue = pow( 10.0, floor( log10( min ) ) );
    }else{
        //qDebug() << "new axis label:" << labelValue << "+" << step << "=" << labelValue+step;
        labelValue += step;
        if( qAbs(labelValue) < 1.0e-15 )
            labelValue = 0.0;
    }
}

static void calculateOverlap	(	int	i,
		int	first,
		int	last,
		int	measure,
		bool	centerAbscissaTicks,
		int &	firstOverlap,
		int &	lastOverlap
	)			[static]

Definition at line 1421 of file KDChartCartesianAxis.cpp.

{
    if( i == first ){
        if( centerAbscissaTicks ){
            //TODO(khz): Calculate the amount of left overlap
            //           for bar diagrams.
        }else{
            firstOverlap = measure / 2;
        }
    }
    // we test both bounds in on go: first and last might be equal
    if( i == last ){
        if( centerAbscissaTicks ){
            //TODO(khz): Calculate the amount of right overlap
            //           for bar diagrams.
        }else{
            lastOverlap = measure / 2;
        }
    }
}

static bool referenceDiagramIsBarDiagram

(

const AbstractDiagram *

diagram

)

[static]

Definition at line 192 of file KDChartCartesianAxis.cpp.

References KDChart::AbstractCartesianDiagram::referenceDiagram().

Referenced by KDChart::CartesianAxis::isAbscissa(), and KDChart::CartesianAxis::isOrdinate().

{
    const AbstractCartesianDiagram * dia =
            qobject_cast< const AbstractCartesianDiagram * >( diagram );
    if( dia && dia->referenceDiagram() )
        dia = dia->referenceDiagram();
    return qobject_cast< const BarDiagram* >( dia ) != 0;
}

static bool referenceDiagramNeedsCenteredAbscissaTicks

(

const AbstractDiagram *

diagram

)

[static]

Definition at line 201 of file KDChartCartesianAxis.cpp.

References KDChart::LineDiagram::centerDataPoints(), and KDChart::AbstractCartesianDiagram::referenceDiagram().

Referenced by KDChart::CartesianAxis::paintCtx().

{
    const AbstractCartesianDiagram * dia =
            qobject_cast< const AbstractCartesianDiagram * >( diagram );
    if( dia && dia->referenceDiagram() )
        dia = dia->referenceDiagram();
    if ( qobject_cast< const BarDiagram* >( dia ) )
        return true;
    if ( qobject_cast< const StockDiagram* >( dia ) )
        return true;

    const LineDiagram * lineDiagram = qobject_cast< const LineDiagram* >( dia );
    return lineDiagram && lineDiagram->centerDataPoints();
}

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