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

Inheritance diagram for KDChart::AbstractAreaWidget:

Signals
void	positionChanged (AbstractAreaWidget *)

Public Member Functions
	AbstractAreaWidget (QWidget *parent=nullptr)

virtual void	forceRebuild ()

virtual void	needSizeHint ()

virtual void	paint (QPainter *painter)=0

void	paintAll (QPainter &painter)

void	paintEvent (QPaintEvent *event) override
	Draws the background and frame, then calls paint(). More...

virtual void	paintIntoRect (QPainter &painter, const QRect &rect)
	Draws the background and frame, then calls paint(). More...

virtual void	resizeLayout (const QSize &)

Public Member Functions inherited from KDChart::AbstractAreaBase
void	alignToReferencePoint (const RelativePosition &position)

BackgroundAttributes	backgroundAttributes () const

bool	compare (const AbstractAreaBase *other) const

FrameAttributes	frameAttributes () const

void	getFrameLeadings (int &left, int &top, int &right, int &bottom) const

virtual void	paintBackground (QPainter &painter, const QRect &rectangle)

virtual void	paintFrame (QPainter &painter, const QRect &rectangle)

void	setBackgroundAttributes (const BackgroundAttributes &a)

void	setFrameAttributes (const FrameAttributes &a)

Protected Member Functions
	~AbstractAreaWidget () override

QRect	areaGeometry () const override

void	positionHasChanged () override

Protected Member Functions inherited from KDChart::AbstractAreaBase
	AbstractAreaBase ()

virtual	~AbstractAreaBase ()

QRect	innerRect () const

Additional Inherited Members
Static Public Member Functions inherited from KDChart::AbstractAreaBase
static void	paintBackgroundAttributes (QPainter &painter, const QRect &rectangle, const KDChart::BackgroundAttributes &attributes)

static void	paintFrameAttributes (QPainter &painter, const QRect &rectangle, const KDChart::FrameAttributes &attributes)

Detailed Description

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

AbstractAreaWidget is the base for all widget classes that have a set of background attributes and frame attributes, such as KDChart::Chart and KDChart::Legend.

Constructor & Destructor Documentation

AbstractAreaWidget::AbstractAreaWidget ( QWidget * parent = nullptr )

explicit

AbstractAreaWidget::~AbstractAreaWidget ( )

overrideprotected

QRect AbstractAreaWidget::areaGeometry ( ) const

overrideprotectedvirtual

void AbstractAreaWidget::forceRebuild ( )

virtual

Call this to trigger an unconditional re-building of the widget's internals.

Reimplemented in KDChart::Legend.

void AbstractAreaWidget::needSizeHint ( )

virtual

Call this to trigger an conditional re-building of the widget's internals.

e.g. AbstractAreaWidget call this, before calling layout()->setGeometry()

Reimplemented in KDChart::Legend.

virtual void KDChart::AbstractAreaWidget::paint ( QPainter * painter )

pure virtual

Overwrite this to paint the inner contents of your widget.

Note: When overriding this method, please let your widget draw itself at the top/left corner of the painter. You should call rect() (or width(), height(), resp.) to find the drawable area's size: While the paint() method is being executed the frame of the widget is outside of its rect(), so you can use all of rect() for your custom drawing!