The vtkQtBarChart class is used to display a bar chart. More...

#include <vtkQtBarChart.h>

Inheritance diagram for vtkQtBarChart:

Collaboration diagram for vtkQtBarChart:

Public Slots
void	reset ()
	Refreshes the bar chart data from the model.
Public Member Functions
	vtkQtBarChart ()
virtual	~vtkQtBarChart ()
Setup Methods
virtual void	setChartArea (vtkQtChartArea *area)
	Sets the chart area for the chart layer.
virtual void	setModel (vtkQtChartSeriesModel *model)
	Sets the chart series model.
Drawing Parameters
vtkQtBarChartOptions *	getOptions () const
	Gets the bar chart drawing options.
void	setOptions (const vtkQtBarChartOptions &options)
	Sets the bar chart drawing options.
vtkQtBarChartSeriesOptions *	getBarSeriesOptions (int series) const
	Gets the bar chart series options.
virtual QPixmap	getSeriesIcon (int series) const
	Gets the icon for a given series.
Layout Methods
virtual void	getLayerDomain (vtkQtChartLayerDomain &domain) const
	Gets the chart layer's domain.
virtual void	layoutChart (const QRectF &area)
	Used to layout the chart layer.
virtual bool	getHelpText (const QPointF &point, QString &text)
	Gets the help text for the given location.
virtual void	finishInteractiveResize ()
	Notifies the chart layer that a resize interaction has finished.
Selection Methods
virtual void	getSeriesAt (const QPointF &point, vtkQtChartSeriesSelection &selection) const
	Gets the list of series at a given position.
virtual void	getPointsAt (const QPointF &point, vtkQtChartSeriesSelection &selection) const
	Gets the list of points at a given position.
virtual void	getSeriesIn (const QRectF &area, vtkQtChartSeriesSelection &selection) const
	Gets the list of series in a given area.
virtual void	getPointsIn (const QRectF &area, vtkQtChartSeriesSelection &selection) const
	Gets the list of points in a given area.
QGraphicsItem Methods
virtual QRectF	boundingRect () const
virtual void	paint (QPainter painter, const QStyleOptionGraphicsItem option, QWidget *widget=0)
Protected Member Functions
virtual vtkQtChartSeriesOptions *	createOptions (QObject *parent)
	Creates a new bar chart series options object.
virtual void	setupOptions (vtkQtChartSeriesOptions *options)
	Sets up the series options defaults.

Detailed Description

The vtkQtBarChart class is used to display a bar chart.

Definition at line 38 of file vtkQtBarChart.h.

Constructor & Destructor Documentation

vtkQtBarChart::vtkQtBarChart ( )

virtual vtkQtBarChart::~vtkQtBarChart ( ) [virtual]

Member Function Documentation

virtual QRectF vtkQtBarChart::boundingRect ( ) const [virtual]

virtual vtkQtChartSeriesOptions* vtkQtBarChart::createOptions ( QObject * parent ) [protected, virtual]

Creates a new bar chart series options object.

Parameters:

parent The parent object.

Returns:: A pointer to the new bar chart series options object.

Implements vtkQtChartSeriesLayer.

virtual void vtkQtBarChart::finishInteractiveResize ( ) [virtual]

Notifies the chart layer that a resize interaction has finished.

The chart bar tree is not updated while the chart is in an interactive state. It is updated in this method if needed.

Reimplemented from vtkQtChartLayer.

vtkQtBarChartSeriesOptions* vtkQtBarChart::getBarSeriesOptions ( int series ) const

Gets the bar chart series options.

Parameters:

series The series index.

Returns:: A pointer to the bar chart series options.

virtual bool vtkQtBarChart::getHelpText	(	const QPointF &	point,
		QString &	text
	)		`[virtual]`

Gets the help text for the given location.

When the chart receives a help event, the layers are searched, in order, for help text at the help event location. If a layer has an item at the location, it should return true.

Parameters:

point	The help location in scene coordinates.
text	Used to return the help text.

Returns:: True if help text is found for the given location.

Reimplemented from vtkQtChartLayer.

virtual void vtkQtBarChart::getLayerDomain ( vtkQtChartLayerDomain & domain ) const [virtual]

Gets the chart layer's domain.

The layer should use the mergeDomain method of the domain parameter to add its domains. The domains from all of the chart layers will be combined using the domain object.

Parameters:

domain Used to return the chart layer's domain.

Reimplemented from vtkQtChartLayer.

vtkQtBarChartOptions* vtkQtBarChart::getOptions ( ) const [inline]

Gets the bar chart drawing options.

Returns:: A pointer to the bar chart drawing options.

Definition at line 59 of file vtkQtBarChart.h.

{return this->Options;}

virtual void vtkQtBarChart::getPointsAt	(	const QPointF &	point,
		vtkQtChartSeriesSelection &	selection
	)		const `[virtual]`

Gets the list of points at a given position.

Parameters:

point	The position in scene coordinates.
selection	Used to return the list of points.

Reimplemented from vtkQtChartSeriesLayer.

virtual void vtkQtBarChart::getPointsIn	(	const QRectF &	area,
		vtkQtChartSeriesSelection &	selection
	)		const `[virtual]`

Gets the list of points in a given area.

Parameters:

area	The rectangle in scene coordinates.
selection	Used to return the list of points.

Reimplemented from vtkQtChartSeriesLayer.

virtual void vtkQtBarChart::getSeriesAt	(	const QPointF &	point,
		vtkQtChartSeriesSelection &	selection
	)		const `[virtual]`

Gets the list of series at a given position.

Parameters:

point	The position in scene coordinates.
selection	Used to return the list of series.

Reimplemented from vtkQtChartSeriesLayer.

virtual QPixmap vtkQtBarChart::getSeriesIcon ( int series ) const [virtual]

Gets the icon for a given series.

The icon is used by the chart legend.

Parameters:

series The index of the series.

Returns:: A pixmap representation of the series.

Reimplemented from vtkQtChartSeriesLayer.

virtual void vtkQtBarChart::getSeriesIn	(	const QRectF &	area,
		vtkQtChartSeriesSelection &	selection
	)		const `[virtual]`

Gets the list of series in a given area.

Parameters:

area	The rectangle in scene coordinates.
selection	Used to return the list of series.

Reimplemented from vtkQtChartSeriesLayer.

virtual void vtkQtBarChart::layoutChart ( const QRectF & area ) [virtual]

Used to layout the chart layer.

Use the AxisDomain from the relevant axes to determine if the chart data can be displayed. The domain priority for the axes can override a layer's desired domain.

Parameters:

area	The area the chart should occupy.

Implements vtkQtChartLayer.

virtual void vtkQtBarChart::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget = `0`
	)		`[virtual]`

void vtkQtBarChart::reset ( ) [slot]

Refreshes the bar chart data from the model.

The currently displayed data is cleaned up. If a model is set, it is used to populate the bar chart.

virtual void vtkQtBarChart::setChartArea ( vtkQtChartArea * area ) [virtual]

Sets the chart area for the chart layer.

If the model is set before the chart layer is added to a chart area, series options will not be available. Setting the chart area will create the series options for the model in this case. Subclasses can extend this method to handle the new options.

Parameters: