The vtkQtLineChart class is used to display a line chart. More...

#include <vtkQtLineChart.h>

Inheritance diagram for vtkQtLineChart:

Collaboration diagram for vtkQtLineChart:

Public Types
enum	{ Type = vtkQtChart_LineChartType }
Public Slots
void	reset ()
	Refreshes the line chart data from the model.
Public Member Functions
	vtkQtLineChart ()
virtual	~vtkQtLineChart ()
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
vtkQtLineChartOptions *	getOptions () const
	Gets the line chart drawing options.
void	setOptions (const vtkQtLineChartOptions &options)
	Sets the line chart drawing options.
vtkQtLineChartSeriesOptions *	getLineSeriesOptions (int series) const
	Gets the line 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)
Protected Member Functions
virtual vtkQtChartSeriesOptions *	createOptions (QObject *parent)
	Creates a new line chart series options object.
virtual void	setupOptions (vtkQtChartSeriesOptions *options)
	Sets up the series options defaults.

Detailed Description

The vtkQtLineChart class is used to display a line chart.

Definition at line 38 of file vtkQtLineChart.h.

Member Enumeration Documentation

anonymous enum

Enumerator:

Type

Definition at line 43 of file vtkQtLineChart.h.

{Type = vtkQtChart_LineChartType};

Constructor & Destructor Documentation

vtkQtLineChart::vtkQtLineChart ( )

virtual vtkQtLineChart::~vtkQtLineChart ( ) [virtual]

Member Function Documentation

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

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

Creates a new line chart series options object.

Parameters:

parent The parent object.

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

Implements vtkQtChartSeriesLayer.

virtual void vtkQtLineChart::finishInteractiveResize ( ) [virtual]

Notifies the chart layer that a resize interaction has finished.

The chart search trees are not updated while the chart is in an interactive state. It is updated in this method if needed.

Reimplemented from vtkQtChartLayer.

virtual bool vtkQtLineChart::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 vtkQtLineChart::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.

vtkQtLineChartSeriesOptions* vtkQtLineChart::getLineSeriesOptions ( int series ) const

Gets the line chart series options.

Parameters:

series The series index.

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

vtkQtLineChartOptions* vtkQtLineChart::getOptions ( ) const [inline]

Gets the line chart drawing options.

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

Definition at line 62 of file vtkQtLineChart.h.

{return this->Options;}

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

void vtkQtLineChart::reset ( ) [slot]

Refreshes the line chart data from the model.

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

virtual void vtkQtLineChart::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: