KDChart::AbstractArea Class Reference

An area in the chart with a background, a frame, etc. More...

#include <KDChartAbstractArea.h>

Inheritance diagram for KDChart::AbstractArea:

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Collaboration diagram for KDChart::AbstractArea:

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List of all members.

Signals
void	positionChanged (AbstractArea *)
Public Member Functions
void	alignToReferencePoint (const RelativePosition &position)
BackgroundAttributes	backgroundAttributes () const
virtual int	bottomOverlap (bool doNotRecalculate=false) const
	This is called at layout time by KDChart:AutoSpacerLayoutItem::sizeHint().
bool	compare (const AbstractAreaBase *other) const
	Returns true if both areas have the same settings.
FrameAttributes	frameAttributes () const
void	getFrameLeadings (int &left, int &top, int &right, int &bottom) const
virtual int	leftOverlap (bool doNotRecalculate=false) const
	This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().
virtual void	paint (QPainter *)=0
virtual void	paintAll (QPainter &painter)
	Call paintAll, if you want the background and the frame to be drawn before the normal paint() is invoked automatically.
virtual void	paintBackground (QPainter &painter, const QRect &rectangle)
virtual void	paintCtx (PaintContext *context)
	Default impl: Paint the complete item using its layouted position and size.
virtual void	paintFrame (QPainter &painter, const QRect &rectangle)
virtual void	paintIntoRect (QPainter &painter, const QRect &rect)
	Draws the background and frame, then calls paint().
QLayout *	parentLayout ()
void	removeFromParentLayout ()
virtual int	rightOverlap (bool doNotRecalculate=false) const
	This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().
void	setBackgroundAttributes (const BackgroundAttributes &a)
void	setFrameAttributes (const FrameAttributes &a)
void	setParentLayout (QLayout *lay)
virtual void	setParentWidget (QWidget *widget)
	Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed.
virtual void	sizeHintChanged () const
	Report changed size hint: ask the parent widget to recalculate the layout.
virtual int	topOverlap (bool doNotRecalculate=false) const
	This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().
virtual	~AbstractArea ()
Static Public Member Functions
static void	paintBackgroundAttributes (QPainter &painter, const QRect &rectangle, const KDChart::BackgroundAttributes &attributes)
static void	paintFrameAttributes (QPainter &painter, const QRect &rectangle, const KDChart::FrameAttributes &attributes)
Protected Member Functions
	AbstractArea ()
virtual QRect	areaGeometry () const
QRect	innerRect () const
virtual void	positionHasChanged ()
Protected Attributes
QWidget *	mParent
QLayout *	mParentLayout

Detailed Description

An area in the chart with a background, a frame, etc.

AbstractArea is the base class for all non-widget chart elements that have a set of background attributes and frame attributes, such as coordinate planes or axes.

Note:: This class inherits from AbstractAreaBase, AbstractLayoutItem, QObject. The reason for this tripple inheritance is that neither AbstractAreaBase nor AbstractLayoutItem are QObject.

Definition at line 47 of file KDChartAbstractArea.h.

Constructor & Destructor Documentation

AbstractArea::~AbstractArea ( ) [virtual]

Definition at line 59 of file KDChartAbstractArea.cpp.

AbstractArea::AbstractArea ( ) [protected]

Definition at line 51 of file KDChartAbstractArea.cpp.

Member Function Documentation

void AbstractAreaBase::alignToReferencePoint ( const RelativePosition & position ) [inherited]

Definition at line 88 of file KDChartAbstractAreaBase.cpp.

QRect AbstractArea::areaGeometry ( ) const [protected, virtual]

Implements KDChart::AbstractAreaBase.

Definition at line 147 of file KDChartAbstractArea.cpp.

Referenced by KDChart::CartesianCoordinatePlane::drawingArea(), KDChart::TernaryCoordinatePlane::layoutDiagrams(), KDChart::PolarCoordinatePlane::layoutDiagrams(), KDChart::TernaryCoordinatePlane::paint(), KDChart::CartesianAxis::paint(), paintAll(), and KDChart::CartesianAxis::paintCtx().

BackgroundAttributes AbstractAreaBase::backgroundAttributes ( ) const [inherited]

Definition at line 118 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by KDChart::AbstractAreaBase::compare(), and updateCommonBrush().

int AbstractArea::bottomOverlap ( bool doNotRecalculate = false ) const [virtual]

This is called at layout time by KDChart:AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the bottom edge of the area.

Note:: The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 98 of file KDChartAbstractArea.cpp.

References d.

Referenced by KDChart::AutoSpacerLayoutItem::sizeHint().

bool AbstractAreaBase::compare ( const AbstractAreaBase * other ) const [inherited]

Returns true if both areas have the same settings.

Definition at line 73 of file KDChartAbstractAreaBase.cpp.

References KDChart::AbstractAreaBase::backgroundAttributes(), and KDChart::AbstractAreaBase::frameAttributes().

FrameAttributes AbstractAreaBase::frameAttributes ( ) const [inherited]

Definition at line 104 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by KDChart::Legend::clone(), KDChart::AbstractAreaBase::compare(), and updateCommonBrush().

void AbstractAreaBase::getFrameLeadings	(	int &	left,
		int &	top,
		int &	right,
		int &	bottom
	)			const `[inherited]`

Definition at line 210 of file KDChartAbstractAreaBase.cpp.

References d.

Referenced by KDChart::AbstractAreaBase::innerRect(), and KDChart::AbstractAreaWidget::paintAll().

QRect AbstractAreaBase::innerRect ( ) const [protected, inherited]

Definition at line 226 of file KDChartAbstractAreaBase.cpp.

References KDChart::AbstractAreaBase::areaGeometry(), and KDChart::AbstractAreaBase::getFrameLeadings().

Referenced by KDChart::TextArea::paintAll(), and paintAll().

int AbstractArea::leftOverlap ( bool doNotRecalculate = false ) const [virtual]

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the left edge of the area.

Note:: The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 74 of file KDChartAbstractArea.cpp.

References d.

Referenced by KDChart::AutoSpacerLayoutItem::sizeHint().

virtual void KDChart::AbstractLayoutItem::paint ( QPainter * ) [pure virtual, inherited]

Implemented in KDChart::CartesianAxis, KDChart::CartesianCoordinatePlane, KDChart::TextLayoutItem, KDChart::TextBubbleLayoutItem, KDChart::MarkerLayoutItem, KDChart::LineLayoutItem, KDChart::LineWithMarkerLayoutItem, KDChart::HorizontalLineLayoutItem, KDChart::VerticalLineLayoutItem, KDChart::AutoSpacerLayoutItem, KDChart::PolarCoordinatePlane, KDChart::TernaryAxis, and KDChart::TernaryCoordinatePlane.

Referenced by KDChart::Legend::paint(), KDChart::AbstractLayoutItem::paintAll(), paintAll(), and KDChart::AbstractLayoutItem::paintCtx().

void AbstractArea::paintAll ( QPainter & painter ) [virtual]

Call paintAll, if you want the background and the frame to be drawn before the normal paint() is invoked automatically.

Reimplemented from KDChart::AbstractLayoutItem.

Reimplemented in KDChart::TernaryAxis.

Definition at line 120 of file KDChartAbstractArea.cpp.

References areaGeometry(), d, KDChart::AbstractAreaBase::innerRect(), KDChart::AbstractLayoutItem::paint(), KDChart::AbstractAreaBase::paintBackground(), and KDChart::AbstractAreaBase::paintFrame().

Referenced by paintIntoRect().

void AbstractAreaBase::paintBackground	(	QPainter &	painter,
		const QRect &	rectangle
	)			`[virtual, inherited]`

Definition at line 194 of file KDChartAbstractAreaBase.cpp.

References d, and KDChart::AbstractAreaBase::paintBackgroundAttributes().

Referenced by KDChart::TextArea::paintAll(), KDChart::AbstractAreaWidget::paintAll(), and paintAll().

void AbstractAreaBase::paintBackgroundAttributes	(	QPainter &	painter,
		const QRect &	rectangle,
		const KDChart::BackgroundAttributes &	attributes
	)			`[static, inherited]`

Definition at line 125 of file KDChartAbstractAreaBase.cpp.

References KDChart::BackgroundAttributes::BackgroundPixmapModeCentered, KDChart::BackgroundAttributes::BackgroundPixmapModeNone, KDChart::BackgroundAttributes::BackgroundPixmapModeScaled, KDChart::BackgroundAttributes::BackgroundPixmapModeStretched, KDChart::BackgroundAttributes::brush(), KDChart::BackgroundAttributes::isVisible(), KDChart::BackgroundAttributes::pixmap(), and KDChart::BackgroundAttributes::pixmapMode().

Referenced by KDChart::AbstractAreaBase::paintBackground().

void KDChart::AbstractLayoutItem::paintCtx ( PaintContext * context ) [virtual, inherited]

Default impl: Paint the complete item using its layouted position and size.

Reimplemented in KDChart::CartesianAxis, KDChart::LeveyJenningsAxis, and KDChart::TernaryAxis.

Definition at line 75 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::paint(), and KDChart::PaintContext::painter().

void AbstractAreaBase::paintFrame	(	QPainter &	painter,
		const QRect &	rectangle
	)			`[virtual, inherited]`

Definition at line 202 of file KDChartAbstractAreaBase.cpp.

References d, and KDChart::AbstractAreaBase::paintFrameAttributes().

Referenced by KDChart::TextArea::paintAll(), KDChart::AbstractAreaWidget::paintAll(), and paintAll().

void AbstractAreaBase::paintFrameAttributes	(	QPainter &	painter,
		const QRect &	rectangle,
		const KDChart::FrameAttributes &	attributes
	)			`[static, inherited]`

Definition at line 175 of file KDChartAbstractAreaBase.cpp.

References KDChart::FrameAttributes::isVisible(), KDChart::FrameAttributes::pen(), and KDChart::PrintingParameters::scalePen().

Referenced by KDChart::AbstractAreaBase::paintFrame().

void AbstractArea::paintIntoRect	(	QPainter &	painter,
		const QRect &	rect
	)			`[virtual]`

Draws the background and frame, then calls paint().

In most cases there is no need to overwrite this method in a derived class, but you would overwrite AbstractLayoutItem::paint() instead.

Definition at line 108 of file KDChartAbstractArea.cpp.

References paintAll().

QLayout* KDChart::AbstractLayoutItem::parentLayout ( ) [inherited]

Definition at line 76 of file KDChartLayoutItems.h.

void KDChart::AbstractArea::positionChanged ( AbstractArea * ) [signal]

Referenced by positionHasChanged().

void AbstractArea::positionHasChanged ( ) [protected, virtual]

Reimplemented from KDChart::AbstractAreaBase.

Definition at line 152 of file KDChartAbstractArea.cpp.

References positionChanged().

void KDChart::AbstractLayoutItem::removeFromParentLayout ( ) [inherited]

Definition at line 80 of file KDChartLayoutItems.h.

Referenced by KDChart::Chart::takeCoordinatePlane().

int AbstractArea::rightOverlap ( bool doNotRecalculate = false ) const [virtual]

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the right edge of the area.

Note:: The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 82 of file KDChartAbstractArea.cpp.

References d.

Referenced by KDChart::AutoSpacerLayoutItem::sizeHint().

void AbstractAreaBase::setBackgroundAttributes ( const BackgroundAttributes & a ) [inherited]

Definition at line 109 of file KDChartAbstractAreaBase.cpp.

References d, and KDChart::AbstractAreaBase::positionHasChanged().

void AbstractAreaBase::setFrameAttributes ( const FrameAttributes & a ) [inherited]

Definition at line 95 of file KDChartAbstractAreaBase.cpp.

References d, and KDChart::AbstractAreaBase::positionHasChanged().

Referenced by KDChart::Legend::clone().

void KDChart::AbstractLayoutItem::setParentLayout ( QLayout * lay ) [inherited]

Definition at line 72 of file KDChartLayoutItems.h.

void KDChart::AbstractLayoutItem::setParentWidget ( QWidget * widget ) [virtual, inherited]

Inform the item about its widget: This enables the item, to trigger that widget's update, whenever the size of the item's contents has changed.

Thus, you need to call setParentWidget on every item, that has a non-fixed size.

Definition at line 62 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::mParent.

Referenced by KDChart::HeaderFooter::setParent(), and KDChart::AbstractCartesianDiagram::takeAxis().

void KDChart::AbstractLayoutItem::sizeHintChanged ( ) const [virtual, inherited]

Report changed size hint: ask the parent widget to recalculate the layout.

Definition at line 84 of file KDChartLayoutItems.cpp.

References KDChart::AbstractLayoutItem::mParent.

Referenced by KDChart::TextLayoutItem::sizeHintAndRotatedCorners().

int AbstractArea::topOverlap ( bool doNotRecalculate = false ) const [virtual]

This is called at layout time by KDChart::AutoSpacerLayoutItem::sizeHint().

The method triggers AbstractArea::sizeHint() to find out the amount of overlap at the top edge of the area.

Note:: The default implementation is not using any caching, it might make sense to implement a more sophisticated solution for derived classes that have complex work to do in sizeHint(). All we have here is a primitive flag to be set by the caller if it is sure that no sizeHint() needs to be called.

Definition at line 90 of file KDChartAbstractArea.cpp.

References d.

Referenced by KDChart::AutoSpacerLayoutItem::sizeHint().