The vtkQtChartArea class manages the chart axes and layers. More...

#include <vtkQtChartArea.h>

Public Slots
void	layoutChart ()
	Calculates the axis and chart layout.
void	updateLayout ()
	Merges layout requests into one delayed layout event.
Signals
void	delayedLayoutNeeded ()
	Emitted when a delayed chart layout is needed.
void	layerInserted (int index, vtkQtChartLayer *chart)
	Emitted when a chart layer has been inserted.
void	removingLayer (int index, vtkQtChartLayer *chart)
	Emitted before a chart layer is removed.
void	layerRemoved (int index, vtkQtChartLayer *chart)
	Emitted when a chart layer has been removed.
Public Member Functions
	vtkQtChartArea (QWidget *parent=0)
	Creates a chart area instance.
virtual	~vtkQtChartArea ()
vtkQtChartStyleManager *	getStyleManager () const
	Gets the style manager for layers that want unique styles.
Layer Methods
void	addLayer (vtkQtChartLayer *chart)
	Adds a chart layer to the top of the layer list.
void	insertLayer (int index, vtkQtChartLayer *chart)
	Inserts a chart layer in the layer list.
void	removeLayer (vtkQtChartLayer *chart)
	Removes a chart layer from the layer list.
int	getNumberOfLayers () const
	Gets the number of chart layers in the list.
vtkQtChartLayer *	getLayer (int index) const
	Gets the chart layer at the specified index.
vtkQtChartLayer *	getLayer (const QString &chartName) const
	Gets the chart layer with the specified chart type.
vtkQtChartAxisLayer *	getAxisLayer () const
	Gets the chart axis layer.
int	getAxisLayerIndex () const
	Gets the index for the axis layer.
int	getGridLayerIndex () const
	Gets the index for the grid layer.
Protected Member Functions
virtual bool	viewportEvent (QEvent *e)
	Updates the layout when the font changes.
virtual void	resizeEvent (QResizeEvent *e)
	Updates the layout when the size changes.
Interaction Methods
vtkQtChartInteractor *	getInteractor () const
	Gets the current chart interactor.
void	setInteractor (vtkQtChartInteractor *interactor)
	Sets the chart interactor.
vtkQtChartContentsSpace *	getContentsSpace () const
	Gets the contents space object.
vtkQtChartMouseBox *	getMouseBox () const
	Gets the mouse box object.
void	startInteractiveResize ()
	Notifies the chart layers that a resize interaction has started.
bool	isInteractivelyResizing () const
	Gets whether or no the chart is interactively resizing.
void	finishInteractiveResize ()
	Notifies the chart layers that a resize interaction has finished.
virtual void	keyPressEvent (QKeyEvent *e)
	Handles the key press events for the chart.
virtual void	mousePressEvent (QMouseEvent *e)
	Handles the mouse press events for the chart.
virtual void	mouseMoveEvent (QMouseEvent *e)
	Handles the mouse move events for the chart.
virtual void	mouseReleaseEvent (QMouseEvent *e)
	Handles the mouse release events for the chart.
virtual void	mouseDoubleClickEvent (QMouseEvent *e)
	Handles the mouse double click events for the chart.
virtual void	wheelEvent (QWheelEvent *e)
	Handles the mouse wheel events for the chart.

Detailed Description

The vtkQtChartArea class manages the chart axes and layers.

Definition at line 44 of file vtkQtChartArea.h.

Constructor & Destructor Documentation

vtkQtChartArea::vtkQtChartArea ( QWidget * parent = 0 )

Creates a chart area instance.

Parameters:

parent The parent widget.

virtual vtkQtChartArea::~vtkQtChartArea ( ) [virtual]

Member Function Documentation

void vtkQtChartArea::addLayer ( vtkQtChartLayer * chart )

Adds a chart layer to the top of the layer list.

Parameters:

chart The chart to add to the list.

See also:: vtkQtChartArea::insertLayer(int, vtkQtChartLayer *)

void vtkQtChartArea::delayedLayoutNeeded ( ) [signal]

Emitted when a delayed chart layout is needed.

void vtkQtChartArea::finishInteractiveResize ( )

Notifies the chart layers that a resize interaction has finished.

vtkQtChartAxisLayer* vtkQtChartArea::getAxisLayer ( ) const

Gets the chart axis layer.

Returns:: A pointer to the chart axis layer.

Referenced by QmitkVtkHistogramWidget::QmitkVtkHistogramWidget(), and QmitkVtkLineProfileWidget::QmitkVtkLineProfileWidget().

int vtkQtChartArea::getAxisLayerIndex ( ) const

Gets the index for the axis layer.

Returns:: The index for the axis layer.

Referenced by QmitkVtkHistogramWidget::QmitkVtkHistogramWidget(), QmitkVtkLineProfileWidget::QmitkVtkLineProfileWidget(), and QmitkVtkLineProfileWidget::UpdateItemModelFromPath().

vtkQtChartContentsSpace* vtkQtChartArea::getContentsSpace ( ) const

Gets the contents space object.

Returns:: A pointer to the contents space object.

int vtkQtChartArea::getGridLayerIndex ( ) const

Gets the index for the grid layer.

Returns:: The index for the grid layer.

vtkQtChartInteractor* vtkQtChartArea::getInteractor ( ) const

Gets the current chart interactor.

Returns:: A pointer to the current chart interactor.

vtkQtChartLayer* vtkQtChartArea::getLayer ( int index ) const

Gets the chart layer at the specified index.

Parameters:

index The index of the layer.

Returns:: A pointer to the chart layer at the specified index.

vtkQtChartLayer* vtkQtChartArea::getLayer ( const QString & chartName ) const

Gets the chart layer with the specified chart type.

Parameters:

chartName The chart type name to find.

Returns:: A pointer to the chart layer with the specified chart type.

vtkQtChartMouseBox* vtkQtChartArea::getMouseBox ( ) const

Gets the mouse box object.

Returns:: A pointer to the mouse box object.

int vtkQtChartArea::getNumberOfLayers ( ) const

Gets the number of chart layers in the list.

Returns:: The number of chart layers in the list.

vtkQtChartStyleManager* vtkQtChartArea::getStyleManager ( ) const

Gets the style manager for layers that want unique styles.

Returns:: A pointer to the style manager.

Referenced by QmitkVtkLineProfileWidget::QmitkVtkLineProfileWidget().

void vtkQtChartArea::insertLayer	(	int	index,
		vtkQtChartLayer *	chart
	)

Inserts a chart layer in the layer list.

The chart layers are drawn in the order they reside in the list of layers. A chart at the beginning of the list is drawn underneath the other layers. A chart at the end of the list is drawn on top of the other layers.

The chart area has two built in chart layers: the grid and axis layers. By default, the grid layer is on the bottom and the axis layer is on the next layer. The index of these layers can be used to place other layers in the chart.

Parameters:

index	Where to insert the chart.
chart	The chart to insert in the list.

See also:: vtkQtChartArea::getGridLayerIndex(), vtkQtChartArea::getAxisLayerIndex()

Referenced by QmitkVtkHistogramWidget::QmitkVtkHistogramWidget(), QmitkVtkLineProfileWidget::QmitkVtkLineProfileWidget(), and QmitkVtkLineProfileWidget::UpdateItemModelFromPath().

bool vtkQtChartArea::isInteractivelyResizing ( ) const

Gets whether or no the chart is interactively resizing.

Returns:: True if the chart is interactively resizing.

virtual void vtkQtChartArea::keyPressEvent ( QKeyEvent * e ) [protected, virtual]

Handles the key press events for the chart.

All the interaction events are forwarded to the vtkQtChartInteractor. It is up to the interactor object to accept or ignore the events.

Parameters:

e	Event specific information.

void vtkQtChartArea::layerInserted	(	int	index,
		vtkQtChartLayer *	chart
	)		`[signal]`

Emitted when a chart layer has been inserted.

Parameters:

index	The index of the layer.
chart	The chart layer that was inserted.

void vtkQtChartArea::layerRemoved	(	int	index,
		vtkQtChartLayer *	chart
	)		`[signal]`

Emitted when a chart layer has been removed.

Parameters:

index	The index of the layer.
chart	The chart layer that was removed.

void vtkQtChartArea::layoutChart ( ) [slot]

Calculates the axis and chart layout.

virtual void vtkQtChartArea::mouseDoubleClickEvent ( QMouseEvent * e ) [protected, virtual]

Handles the mouse double click events for the chart.

Parameters:

e	Event specific information.

virtual void vtkQtChartArea::mouseMoveEvent ( QMouseEvent * e ) [protected, virtual]

Handles the mouse move events for the chart.

Parameters:

e	Event specific information.

virtual void vtkQtChartArea::mousePressEvent ( QMouseEvent * e ) [protected, virtual]

Handles the mouse press events for the chart.

Parameters:

e	Event specific information.

virtual void vtkQtChartArea::mouseReleaseEvent ( QMouseEvent * e ) [protected, virtual]

Handles the mouse release events for the chart.

Parameters:

e	Event specific information.

void vtkQtChartArea::removeLayer ( vtkQtChartLayer * chart )

Removes a chart layer from the layer list.

Parameters:

chart The chart to remove from the list.

Referenced by QmitkVtkLineProfileWidget::UpdateItemModelFromPath().

void vtkQtChartArea::removingLayer	(	int	index,
		vtkQtChartLayer *	chart
	)		`[signal]`

Emitted before a chart layer is removed.

Parameters:

index	The index of the layer.
chart	The chart layer that will be removed.

virtual void vtkQtChartArea::resizeEvent ( QResizeEvent * e ) [protected, virtual]

Updates the layout when the size changes.

Parameters:

e	Event specific information.

void vtkQtChartArea::setInteractor ( vtkQtChartInteractor * interactor )

Sets the chart interactor.

This method sets up the interactor to work with the chart. The contents space and mouse box are set on the interactor.

Parameters:

interactor The new chart interactor.

void vtkQtChartArea::startInteractiveResize ( )

Notifies the chart layers that a resize interaction has started.

Chart layers can use this method to reduce the processing load during an interaction.

void vtkQtChartArea::updateLayout ( ) [slot]

Merges layout requests into one delayed layout event.

virtual bool vtkQtChartArea::viewportEvent ( QEvent * e ) [protected, virtual]

Updates the layout when the font changes.

Parameters:

e	Event specific information.

Returns:: True if the event was handled.

virtual void vtkQtChartArea::wheelEvent ( QWheelEvent * e ) [protected, virtual]

Handles the mouse wheel events for the chart.

Parameters:

e	Event specific information.

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

vtkQtChartArea.h

vtkQtChartArea Class Reference

Public Slots

Signals

Public Member Functions

Protected Member Functions

Interaction Methods

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation