PrerenderedElement Class Reference

#include <KDChartTextLabelCache.h>

Inheritance diagram for PrerenderedElement:

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Collaboration diagram for PrerenderedElement:

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List of all members.

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Detailed Description

base class for prerendered elements like labels, pixmaps, markers, etc.

Definition at line 43 of file KDChartTextLabelCache.h.

Public Member Functions
virtual const QPixmap &	pixmap () const =0
	Returns the rendered element.
const QPointF &	position () const
	Get the position of the element.
	PrerenderedElement ()
KDChartEnums::PositionValue	referencePoint () const
	Get the reference point of the element.
virtual QPointF	referencePointLocation (KDChartEnums::PositionValue) const =0
	Return the location of the reference point relatively to the pixmap's origin.
void	setPosition (const QPointF &position)
	Set the position of the element.
void	setReferencePoint (KDChartEnums::PositionValue)
	Set the reference point of the element.
virtual	~PrerenderedElement ()
Protected Member Functions
virtual void	invalidate () const =0
	invalidate() needs to be called if any of the properties that determine the visual appearance of the prerendered element change.

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Constructor & Destructor Documentation

PrerenderedElement::PrerenderedElement

(

)

Definition at line 58 of file KDChartTextLabelCache.cpp.

    : m_referencePoint( KDChartEnums::PositionNorthWest )
{

virtual PrerenderedElement::~PrerenderedElement

(

)

[virtual]

Definition at line 46 of file KDChartTextLabelCache.h.

{}

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Member Function Documentation

virtual void PrerenderedElement::invalidate

(

)

const [protected, pure virtual]

invalidate() needs to be called if any of the properties that determine the visual appearance of the prerendered element change.

It can be called for a const object, as objects may need to force recalculation of the pixmap.

Implemented in PrerenderedLabel.

virtual const QPixmap& PrerenderedElement::pixmap

(

)

const [pure virtual]

Returns the rendered element.

If any of the properties have change, the element will be regenerated.

Implemented in PrerenderedLabel.

const QPointF & PrerenderedElement::position

(

)

const

Get the position of the element.

Definition at line 68 of file KDChartTextLabelCache.cpp.

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

{
    return m_position;

KDChartEnums::PositionValue PrerenderedElement::referencePoint

(

)

const

Get the reference point of the element.

Definition at line 78 of file KDChartTextLabelCache.cpp.

Referenced by PrerenderedLabel::referencePointLocation().

{
    return m_referencePoint;

virtual QPointF PrerenderedElement::referencePointLocation

(

KDChartEnums::PositionValue

)

const [pure virtual]

Return the location of the reference point relatively to the pixmap's origin.

Implemented in PrerenderedLabel.

void PrerenderedElement::setPosition

(

const QPointF &

position

)

Set the position of the element.

Definition at line 63 of file KDChartTextLabelCache.cpp.

{   // this does not invalidate the element
    m_position = position;

void PrerenderedElement::setReferencePoint

(

KDChartEnums::PositionValue

point

)

Set the reference point of the element.

Every element has nine possible reference points (all compass directions, plus the center.

Definition at line 73 of file KDChartTextLabelCache.cpp.

{   // this does not invalidate the element
    m_referencePoint = point;

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

• KDChartTextLabelCache.h
• KDChartTextLabelCache.cpp

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