#include <KDChartPiePainter.h>

Inheritance diagram for KDChartPiePainter:

Protected Member Functions
	KDChartPiePainter (KDChartParams *params)

virtual	~KDChartPiePainter ()

virtual void	paintData (TQPainter painter, KDChartTableDataBase data, bool paint2nd, KDChartDataRegionList *regions=0)

virtual void	drawOnePie (TQPainter painter, KDChartTableDataBase data, uint dataset, uint pie, uint chart, uint threeDPieHeight, KDChartDataRegionList *regions=0)

virtual void	draw3DEffect (TQPainter painter, const TQRect &drawPosition, uint dataset, uint pie, uint chart, uint threeDPieHeight, bool explode, TQRegion region=0)

void	drawStraightEffectSegment (TQPainter painter, const TQRect &rect, uint dataset, uint pie, uint chart, int threeDHeight, int angle, TQRegion region=0)

void	drawArcEffectSegment (TQPainter painter, const TQRect &rect, uint dataset, uint pie, uint chart, int threeDHeight, int startAngle, int endAngle, TQRegion region=0)

virtual TQString	fallbackLegendText (uint dataset) const

virtual uint	numLegendFallbackTexts (KDChartTableDataBase *data) const

uint	findPieAt (int angle)

uint	findLeftPie (uint pie)

uint	findRightPie (uint pie)

Protected Member Functions inherited from KDChartPainter
	KDChartPainter (KDChartParams *)

virtual void	paintArea (TQPainter painter, uint area, KDChartDataRegionList regions=0, uint dataRow=0, uint dataCol=0, uint data3rd=0)

virtual void	paintDataRegionAreas (TQPainter painter, KDChartDataRegionList regions)

virtual void	paintAreaWithGap (TQPainter *painter, TQRect rect, const KDChartParams::KDChartFrameSettings &settings)

virtual void	paintCustomBoxes (TQPainter painter, KDChartDataRegionList regions)

virtual void	paintDataValues (TQPainter painter, KDChartTableDataBase data, KDChartDataRegionList *regions)

virtual void	paintAxes (TQPainter painter, KDChartTableDataBase data)

virtual void	paintLegend (TQPainter painter, KDChartTableDataBase data)

virtual void	paintHeaderFooter (TQPainter painter, KDChartTableDataBase data)

virtual bool	axesOverlapping (int axis1, int axis2)

virtual void	findChartDatasets (KDChartTableDataBase *data, bool paint2nd, uint chart, uint &chartDatasetStart, uint &chartDatasetEnd)

virtual void	calculateAllAxesRects (TQPainter painter, bool finalPrecision, KDChartTableDataBase data)

virtual TQPoint	calculateAnchor (const KDChartCustomBox &box, KDChartDataRegionList *regions=0) const

virtual TQRect	calculateAreaRect (bool &allCustomBoxes, uint area, uint dataRow, uint dataCol, uint data3rd, KDChartDataRegionList *regions) const

const KDChartParams *	params () const

virtual bool	calculateAllAxesLabelTextsAndCalcValues (TQPainter painter, KDChartTableDataBase data, double areaWidthP1000, double areaHeightP1000, double &delimLen)

virtual void	drawExtraLinesAndMarkers (KDChartPropertySet &propSet, const TQPen &defaultPen, const KDChartParams::LineMarkerStyle &defaultMarkerStyle, int myPointX, int myPointY, TQPainter painter, const KDChartAxisParams abscissaPara, const KDChartAxisParams *ordinatePara, const double areaWidthP1000, const double areaHeightP1000, bool bDrawInFront=false)

Protected Attributes
TQMemArray< int >	_startAngles

TQMemArray< int >	_angleLens

TQRect	_position

int	_size

int	_numValues

Protected Attributes inherited from KDChartPainter
TQRect	_outermostRect

TQRect	_innermostRect

TQRect	_dataRect

TQRect	_axesRect

TQRect	_legendRect

int	_legendEMSpace

int	_legendSpacing

int	_legendHeight

int	_legendLeading

KDChartTextPiece *	_legendTitle

int	_numLegendTexts

int	_logicalWidth

int	_logicalHeight

double	_areaWidthP1000

double	_areaHeightP1000

TQMap< int, TQString >	_legendTexts

internal__KDChart__CalcValues	calcVal [KDCHART_MAX_AXES]

Friends
class	KDChartPainter

Additional Inherited Members
Public Member Functions inherited from KDChartPainter
virtual	~KDChartPainter ()

virtual void	setupGeometry (TQPainter painter, KDChartTableDataBase data, const TQRect &rect)

virtual void	paint (TQPainter painter, KDChartTableDataBase data, bool paintFirst, bool paintLast, KDChartDataRegionList regions=0, const TQRect rect=0, bool mustCalculateGeometry=true)

virtual TQRect	outermostRect () const

Static Public Member Functions inherited from KDChartPainter
static KDChartPainter *	create (KDChartParams *params, bool make2nd=false)

static void	registerPainter (const TQString &painterName, KDChartPainter *painter)

static void	unregisterPainter (const TQString &painterName)

static void	drawMarker (TQPainter *painter, int style, const TQColor &color, const TQPoint &p, const TQSize &size, uint align=TQt::AlignCenter)

Static Protected Member Functions inherited from KDChartPainter
static TQPoint	pointOnCircle (const TQRect &rect, double angle)

static void	makeArc (TQPointArray &points, const TQRect &rect, double startAngle, double angles)

static KDChartDataRegion *	drawMarker (TQPainter painter, const KDChartParams params, double areaWidthP1000, double areaHeightP1000, int deltaX, int deltaY, int style, const TQColor &color, const TQPoint &p, uint dataset, uint value, uint chart, KDChartDataRegionList regions=0, int width=0, int *height=0, uint align=TQt::AlignCenter)

Detailed Description

A chart painter implementation that can paint pie charts.

PENDING(kalle) Write more documentation.

Definition at line 37 of file KDChartPiePainter.h.

Constructor & Destructor Documentation

◆ KDChartPiePainter()

KDChartPiePainter::KDChartPiePainter ( KDChartParams * params )

protected

Constructor.

Sets up internal data structures as necessary.

Parameters

params the KDChartParams structure that defines the chart

Definition at line 54 of file KDChartPiePainter.cpp.

◆ ~KDChartPiePainter()

KDChartPiePainter::~KDChartPiePainter ( )

protectedvirtual

Destructor.

Definition at line 65 of file KDChartPiePainter.cpp.

Member Function Documentation

◆ draw3DEffect()

void KDChartPiePainter::draw3DEffect	(	TQPainter *	painter,
		const TQRect &	drawPosition,
		uint	dataset,
		uint	pie,
		uint	chart,
		uint	threeDHeight,
		bool	explode,
		TQRegion *	region = `0`
	)

protectedvirtual

Internal method that draws the shadow creating the 3D effect of a pie.

Parameters

painter	the TQPainter to draw in
rect	the position to draw at
dataset	the dataset to draw the pie for
pie	the pie to draw the shadow for
the	chart to draw the pie in
threeDHeight	the height of the shadow
regions	a pointer to a list of regions that will be filled with regions representing the data segments, if not null

starts and ends in first quadrant, less than 1/4

starts and ends in first quadrant, more than 3/4

starts in first quadrant, ends in second quadrant, less than 1/2

starts in first quadrant, ends in third quadrant

starts in first quadrant, ends in fourth quadrant, more than 3/4

starts in second quadrant, ends in second quadrant, less than 1/4

starts in second quadrant, ends in second quadrant, more than 1/4

starts in third quadrant, ends in third quadrant, less than 1/4

starts in third quadrant, ends in third quadrant, more than 3/4

starts in fourth quadrant, ends in fourth quadrant, less than 1/4

starts in fourth quadrant, ends in fourth quadrant, more than 3/4

Definition at line 477 of file KDChartPiePainter.cpp.

◆ drawArcEffectSegment()

void KDChartPiePainter::drawArcEffectSegment	(	TQPainter *	painter,
		const TQRect &	rect,
		uint	dataset,
		uint	pie,
		uint	chart,
		int	threeDHeight,
		int	startAngle,
		int	endAngle,
		TQRegion *	region = `0`
	)

protected

Internal method that draws a segment with an arc 3D effect.

Parameters

painter	the TQPainter to draw in
rect	the position to draw at
threeDHeight	the height of the shadow
startAngle	the starting angle of the segment
endAngle	the ending angle of the segment
regions	a pointer to a list of regions that will be filled with regions representing the data segments, if not null

Definition at line 707 of file KDChartPiePainter.cpp.

◆ drawOnePie()

void KDChartPiePainter::drawOnePie	(	TQPainter *	painter,
		KDChartTableDataBase *	data,
		uint	dataset,
		uint	pie,
		uint	chart,
		uint	threeDPieHeight,
		KDChartDataRegionList *	regions = `0`
	)

protectedvirtual

Internal method that draws one of the pies in a pie chart.

Parameters

painter	the TQPainter to draw in
dataset	the dataset to draw the pie for
pie	the pie to draw
the	chart to draw the pie in
regions	a pointer to a list of regions that will be filled with regions representing the data segments, if not null

Definition at line 299 of file KDChartPiePainter.cpp.

◆ drawStraightEffectSegment()

void KDChartPiePainter::drawStraightEffectSegment	(	TQPainter *	painter,
		const TQRect &	rect,
		uint	dataset,
		uint	pie,
		uint	chart,
		int	threeDHeight,
		int	angle,
		TQRegion *	region = `0`
	)

protected

Internal method that draws a segment with a straight 3D effect.

Parameters

painter	the TQPainter to draw in
rect	the position to draw at
threeDHeight	the height of the shadow
angle	the angle of the segment
regions	a pointer to a list of regions that will be filled with regions representing the data segments, if not null

Definition at line 675 of file KDChartPiePainter.cpp.

◆ fallbackLegendText()

TQString KDChartPiePainter::fallbackLegendText ( uint dataset ) const

protectedvirtual

This method is a specialization that returns a fallback legend text appropriate for pies that do not have more than one dataset.

This method is only used when automatic legends are used, because manual and first-column legends do not need fallback texts.

Parameters

uint	dataset the dataset number for which to generate a fallback text

Returns: the fallback text to use for describing the specified dataset in the legend

Reimplemented from KDChartPainter.

Definition at line 807 of file KDChartPiePainter.cpp.

◆ findLeftPie()

uint KDChartPiePainter::findLeftPie ( uint pie )

protected

Internal method that finds the pie that is located to the left of the pie specified by pie.

Parameters

pie	the pie to start the search from

Returns: the number of the pie to the left of pie

Definition at line 766 of file KDChartPiePainter.cpp.

◆ findPieAt()

uint KDChartPiePainter::findPieAt ( int angle )

protected

Internal method that finds the pie that is located at the position specified by angle.

Parameters

angle the angle at which to search for a pie

Returns: the number of the pie found

Definition at line 744 of file KDChartPiePainter.cpp.

◆ findRightPie()

uint KDChartPiePainter::findRightPie ( uint pie )

protected

Internal method that finds the pie that is located to the right of the pie specified by pie.

Parameters

pie	the pie to start the search from

Returns: the number of the pie to the right of pie

Definition at line 786 of file KDChartPiePainter.cpp.

◆ numLegendFallbackTexts()

uint KDChartPiePainter::numLegendFallbackTexts ( KDChartTableDataBase * data ) const

protectedvirtual

This methods returns the number of elements to be shown in the legend in case fallback texts are used.

This method is only used when automatic legends are used, because manual and first-column legends do not need fallback texts.

Returns: the number of fallback texts to use

Reimplemented from KDChartPainter.

Definition at line 822 of file KDChartPiePainter.cpp.

◆ paintData()

void KDChartPiePainter::paintData	(	TQPainter *	painter,
		KDChartTableDataBase *	data,
		bool	paint2nd,
		KDChartDataRegionList *	regions = `0`
	)

protectedvirtual

Paints the actual data area.

Parameters

painter	the TQPainter onto which the chart should be painted
data	the data that will be displayed as a chart
paint2nd	specifies whether the main chart or the additional chart is to be drawn now
regions	a pointer to a list of regions that will be filled with regions representing the data segments, if not null

Implements KDChartPainter.

Definition at line 81 of file KDChartPiePainter.cpp.

Friends And Related Symbol Documentation

◆ KDChartPainter

friend class KDChartPainter

friend

Definition at line 39 of file KDChartPiePainter.h.

Member Data Documentation

◆ _angleLens

TQMemArray< int > KDChartPiePainter::_angleLens

protected

Definition at line 76 of file KDChartPiePainter.h.

◆ _numValues

int KDChartPiePainter::_numValues

protected

Definition at line 80 of file KDChartPiePainter.h.

◆ _position

TQRect KDChartPiePainter::_position

protected

Definition at line 78 of file KDChartPiePainter.h.

◆ _size

int KDChartPiePainter::_size

protected

Definition at line 79 of file KDChartPiePainter.h.

◆ _startAngles

TQMemArray< int > KDChartPiePainter::_startAngles

protected

Definition at line 75 of file KDChartPiePainter.h.

The documentation for this class was generated from the following files:

kchart

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ KDChartPiePainter()

◆ ~KDChartPiePainter()

Member Function Documentation

◆ draw3DEffect()

◆ drawArcEffectSegment()

◆ drawOnePie()

◆ drawStraightEffectSegment()

◆ fallbackLegendText()

◆ findLeftPie()

◆ findPieAt()

◆ findRightPie()

◆ numLegendFallbackTexts()

◆ paintData()

Friends And Related Symbol Documentation

◆ KDChartPainter

Member Data Documentation

◆ _angleLens

◆ _numValues

◆ _position

◆ _size

◆ _startAngles

kchart

kchart