vtkQtChartInteractor Class Reference

#include <vtkQtChartInteractor.h>

Collaboration diagram for vtkQtChartInteractor:

Detailed Description

The vtkQtChartInteractor class is used to interact with a chart.

The contents space and mouse box object used by the chart are shared among the mouse functions. The contents space object is used to convert widget coordinates to contents coordinates. It is also used to pan and zoom the contents. The chart uses the mouse box to draw a dashed rectangle on top of the chart. Mouse functions can use this rectangle for selection or zooming.

The keyboard shortcuts are as follows:

  Plus...................Zoom in.
  Minus..................Zoom out.
  Ctrl+Plus..............Horizontally zoom in.
  Ctrl+minus.............Horizontally zoom out.
  Alt+Plus...............Vertically zoom in.
  Alt+minus..............Vertically zoom out.
  Up.....................Pan up.
  Down...................Pan down.
  Left...................Pan left.
  Right..................Pan right.
  Alt+Left...............Go to previous view in the history.
  Alt+Right..............Go to next view in the history.

Definition at line 72 of file vtkQtChartInteractor.h.


Signals
void	cursorChangeRequested (const QCursor &cursor)
	Emitted when the mouse cursor needs to be changed.
Public Member Functions
	vtkQtChartInteractor (QObject *parent=0)
	Creates a chart interactor instance.
virtual	~vtkQtChartInteractor ()
Setup Methods
vtkQtChartArea *	getChartArea () const
	Gets the chart area.
void	setChartArea (vtkQtChartArea *area)
	Sets the chart area.
Configuration Methods
void	setFunction (Qt::MouseButton button, vtkQtChartMouseFunction *function, Qt::KeyboardModifiers modifiers=Qt::NoModifier)
	Sets the given function on the indicated mouse button.
void	setWheelFunction (vtkQtChartMouseFunction *function, Qt::KeyboardModifiers modifiers=Qt::NoModifier)
	Sets the given function on the mouse wheel.
void	addFunction (Qt::MouseButton button, vtkQtChartMouseFunction *function, Qt::KeyboardModifiers modifiers=Qt::NoModifier)
	Adds the given function to the indicated mouse button.
void	addWheelFunction (vtkQtChartMouseFunction *function, Qt::KeyboardModifiers modifiers=Qt::NoModifier)
	Adds the given function to the mouse wheel.
void	removeFunction (vtkQtChartMouseFunction *function)
	Removes the given function from its assigned button.
void	removeFunctions (Qt::MouseButton button)
	Removes all the functions assigned to the given button.
void	removeWheelFunctions ()
	Removes all the functions assigned to the mouse wheel.
void	removeAllFunctions ()
	Removes all the functions from all the buttons.
int	getNumberOfModes (Qt::MouseButton button) const
	Gets the number of modes on a mouse button.
int	getMode (Qt::MouseButton button) const
	Gets the current mode for the given button.
void	setMode (Qt::MouseButton button, int index)
	Sets the current mode for the given button.
int	getNumberOfWheelModes () const
	Gets the number of modes on the mouse wheel.
int	getWheelMode () const
	Gets the current mode for the mouse wheel.
void	setWheelMode (int index)
	Sets the current mode for the mouse wheel.
Interaction Methods
virtual bool	keyPressEvent (QKeyEvent *e)
	Handles the key press events for the chart.
virtual void	mousePressEvent (QMouseEvent *e)
	Calls the appropriate function to handle the mouse press.
virtual void	mouseMoveEvent (QMouseEvent *e)
	Calls the appropriate function to handle the mouse move.
virtual void	mouseReleaseEvent (QMouseEvent *e)
	Calls the appropriate function to handle the mouse release.
virtual void	mouseDoubleClickEvent (QMouseEvent *e)
	Calls the appropriate function to handle the double click.
virtual void	wheelEvent (QWheelEvent *e)
	Handles the mouse wheel events for the chart.

Constructor & Destructor Documentation

vtkQtChartInteractor::vtkQtChartInteractor ( QObject * parent = 0 )

Creates a chart interactor instance.

Parameters:

parent

The parent object.

virtual vtkQtChartInteractor::~vtkQtChartInteractor ( ) [virtual]

Member Function Documentation

vtkQtChartArea* vtkQtChartInteractor::getChartArea ( ) const [inline]

Gets the chart area.

Returns:: A pointer to the chart area.

Definition at line 89 of file vtkQtChartInteractor.h.

void vtkQtChartInteractor::setChartArea ( vtkQtChartArea * area ) [inline]

Sets the chart area.

Parameters:

area

The new chart area.

Definition at line 94 of file vtkQtChartInteractor.h.

void vtkQtChartInteractor::setFunction	(	Qt::MouseButton	button,
		vtkQtChartMouseFunction *	function,
		Qt::KeyboardModifiers	modifiers = `Qt::NoModifier`
	)

Sets the given function on the indicated mouse button.

This method clears any functions currently assigned to the given button before adding the new function.

Parameters:

	button	The mouse button to assign the function to.
	function	The mouse function to add.
	modifiers	The keyboard modifiers used to activate the function.

void vtkQtChartInteractor::setWheelFunction	(	vtkQtChartMouseFunction *	function,
		Qt::KeyboardModifiers	modifiers = `Qt::NoModifier`
	)

Sets the given function on the mouse wheel.

Parameters:

	function	The mouse function to add.
	modifiers	The keyboard modifiers used to activate the function.

void vtkQtChartInteractor::addFunction	(	Qt::MouseButton	button,
		vtkQtChartMouseFunction *	function,
		Qt::KeyboardModifiers	modifiers = `Qt::NoModifier`
	)

Adds the given function to the indicated mouse button.

If the new function is not combinable, it will be added to its own interaction mode. If the function is combinable, it is added to the first mode that does not have the given modifiers.

Parameters:

	button	The mouse button to assign the function to.
	function	The mouse function to add.
	modifiers	The keyboard modifiers used to activate the function.

void vtkQtChartInteractor::addWheelFunction	(	vtkQtChartMouseFunction *	function,
		Qt::KeyboardModifiers	modifiers = `Qt::NoModifier`
	)

Adds the given function to the mouse wheel.

Parameters:

	function	The mouse function to add.
	modifiers	The keyboard modifiers used to activate the function.

void vtkQtChartInteractor::removeFunction ( vtkQtChartMouseFunction * function )

Removes the given function from its assigned button.

Parameters:

function

The mouse function to remove.

void vtkQtChartInteractor::removeFunctions ( Qt::MouseButton button )

Removes all the functions assigned to the given button.

Parameters:

button

The mouse button to clear.

void vtkQtChartInteractor::removeWheelFunctions ( )

Removes all the functions assigned to the mouse wheel.

void vtkQtChartInteractor::removeAllFunctions ( )

Removes all the functions from all the buttons.

int vtkQtChartInteractor::getNumberOfModes ( Qt::MouseButton button ) const

Gets the number of modes on a mouse button.

Parameters:

button

The mouse button.

Returns:: The number of modes on a mouse button.

int vtkQtChartInteractor::getMode ( Qt::MouseButton button ) const

Gets the current mode for the given button.

Parameters:

button

The mouse button.

Returns:: The current mode for the given button.

void vtkQtChartInteractor::setMode	(	Qt::MouseButton	button,
		int	index
	)

Sets the current mode for the given button.

Parameters:

	button	The mouse button.
	index	The new interaction mode.

int vtkQtChartInteractor::getNumberOfWheelModes ( ) const

Gets the number of modes on the mouse wheel.

Returns:: The number of modes on the mouse wheel.

int vtkQtChartInteractor::getWheelMode ( ) const

Gets the current mode for the mouse wheel.

Returns:: The current mode for the mouse wheel.

void vtkQtChartInteractor::setWheelMode ( int index )

Sets the current mode for the mouse wheel.

Parameters:

index

The new interaction mode.

virtual bool vtkQtChartInteractor::keyPressEvent ( QKeyEvent * e ) [virtual]

Handles the key press events for the chart.

Parameters:

e

Event specific information.

virtual void vtkQtChartInteractor::mousePressEvent ( QMouseEvent * e ) [virtual]

Calls the appropriate function to handle the mouse press.

The mouse button and that button's current mode are used to determine the function to call. If a function on another button owns the mouse, the event will be ignored.

Parameters:

e

Event specific information.

virtual void vtkQtChartInteractor::mouseMoveEvent ( QMouseEvent * e ) [virtual]

Calls the appropriate function to handle the mouse move.

Parameters:

e

Event specific information.

virtual void vtkQtChartInteractor::mouseReleaseEvent ( QMouseEvent * e ) [virtual]

Calls the appropriate function to handle the mouse release.

Parameters:

e

Event specific information.

virtual void vtkQtChartInteractor::mouseDoubleClickEvent ( QMouseEvent * e ) [virtual]

Calls the appropriate function to handle the double click.

Parameters:

e

Event specific information.

virtual void vtkQtChartInteractor::wheelEvent ( QWheelEvent * e ) [virtual]

Handles the mouse wheel events for the chart.

Parameters:

e

Event specific information.

void vtkQtChartInteractor::cursorChangeRequested ( const QCursor & cursor ) [signal]

Emitted when the mouse cursor needs to be changed.

Parameters:

cursor

The new cursor to use.

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

dox/GUISupport/Qt/Chart/vtkQtChartInteractor.h

vtkQtChartInteractor Class Reference

Detailed Description

Signals

Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation