org.apache.batik.bridge
Class BridgeEventSupport.Listener

java.lang.Object
  org.apache.batik.bridge.BridgeEventSupport.Listener

All Implemented Interfaces:

EventListener, GraphicsNodeKeyListener, GraphicsNodeMouseListener

Direct Known Subclasses:

SVG12BridgeEventSupport.Listener

Enclosing class:

BridgeEventSupport

protected static class BridgeEventSupport.Listener
extends Object
implements GraphicsNodeMouseListener, GraphicsNodeKeyListener

A GraphicsNodeMouseListener that dispatch DOM events accordingly.

Field Summary

protected BridgeContext	context
protected boolean	isDown
protected Element	lastTargetElement
protected UserAgent	ua

Constructor Summary

BridgeEventSupport.Listener(BridgeContext ctx, UserAgent u)

Method Summary

protected void	dispatchKeyEvent(String eventType, GraphicsNodeKeyEvent evt) Dispatch a DOM 2 Draft Key event.
protected void	dispatchMouseEvent(String eventType, Element targetElement, Element relatedElement, Point clientXY, GraphicsNodeMouseEvent evt, boolean cancelable) Dispatches a DOM MouseEvent according to the specified parameters.
protected void	dispatchMouseEvent(String eventType, GraphicsNodeMouseEvent evt, boolean cancelable) Dispatches a DOM MouseEvent according to the specified parameters.
protected Element	getEventTarget(GraphicsNode node, Point2D pt) Returns the element that is the target of the specified event or null if any.
protected Element	getRelatedElement(GraphicsNodeMouseEvent evt) Returns the related element according to the specified event.
void	keyPressed(GraphicsNodeKeyEvent evt) Invoked when a key has been pressed.
void	keyReleased(GraphicsNodeKeyEvent evt) Invoked when a key has been released.
void	keyTyped(GraphicsNodeKeyEvent evt) Invoked when a key has been typed.
protected int	mapKeyCode(int keyCode) The java KeyEvent keyCodes and the DOMKeyEvent keyCodes map except for the VK_ENTER code (which has a different value in DOM and the VK_KANA_LOCK and VK_INPUT_METHOD_ON_OFF which have no DOM equivalent.
void	mouseClicked(GraphicsNodeMouseEvent evt)
void	mouseDragged(GraphicsNodeMouseEvent evt)
void	mouseEntered(GraphicsNodeMouseEvent evt)
void	mouseExited(GraphicsNodeMouseEvent evt)
void	mouseMoved(GraphicsNodeMouseEvent evt)
void	mousePressed(GraphicsNodeMouseEvent evt)
void	mouseReleased(GraphicsNodeMouseEvent evt)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

context

protected BridgeContext context

ua

protected UserAgent ua

lastTargetElement

protected Element lastTargetElement

isDown

protected boolean isDown

Constructor Detail

BridgeEventSupport.Listener

public BridgeEventSupport.Listener(BridgeContext ctx,
                                   UserAgent u)

Method Detail

keyPressed

public void keyPressed(GraphicsNodeKeyEvent evt)

Invoked when a key has been pressed.

Specified by:

keyPressed in interface GraphicsNodeKeyListener

Parameters:

evt - the graphics node key event

keyReleased

public void keyReleased(GraphicsNodeKeyEvent evt)

Invoked when a key has been released.

Specified by:

keyReleased in interface GraphicsNodeKeyListener

Parameters:

evt - the graphics node key event

keyTyped

public void keyTyped(GraphicsNodeKeyEvent evt)

Invoked when a key has been typed.

Specified by:

keyTyped in interface GraphicsNodeKeyListener

Parameters:

evt - the graphics node key event

dispatchKeyEvent

protected void dispatchKeyEvent(String eventType,
                                GraphicsNodeKeyEvent evt)

Dispatch a DOM 2 Draft Key event.

mapKeyCode

protected final int mapKeyCode(int keyCode)

The java KeyEvent keyCodes and the DOMKeyEvent keyCodes map except for the VK_ENTER code (which has a different value in DOM and the VK_KANA_LOCK and VK_INPUT_METHOD_ON_OFF which have no DOM equivalent.

mouseClicked

public void mouseClicked(GraphicsNodeMouseEvent evt)

Specified by:

mouseClicked in interface GraphicsNodeMouseListener

mousePressed

public void mousePressed(GraphicsNodeMouseEvent evt)

Specified by:

mousePressed in interface GraphicsNodeMouseListener

mouseReleased

public void mouseReleased(GraphicsNodeMouseEvent evt)

Specified by:

mouseReleased in interface GraphicsNodeMouseListener

mouseEntered

public void mouseEntered(GraphicsNodeMouseEvent evt)

Specified by:

mouseEntered in interface GraphicsNodeMouseListener

mouseExited

public void mouseExited(GraphicsNodeMouseEvent evt)

Specified by:

mouseExited in interface GraphicsNodeMouseListener

mouseDragged

public void mouseDragged(GraphicsNodeMouseEvent evt)

Specified by:

mouseDragged in interface GraphicsNodeMouseListener

mouseMoved

public void mouseMoved(GraphicsNodeMouseEvent evt)

Specified by:

mouseMoved in interface GraphicsNodeMouseListener

dispatchMouseEvent

protected void dispatchMouseEvent(String eventType,
                                  GraphicsNodeMouseEvent evt,
                                  boolean cancelable)

Dispatches a DOM MouseEvent according to the specified parameters.

Parameters:

eventType - the event type

evt - the GVT GraphicsNodeMouseEvent

cancelable - true means the event is cancelable

dispatchMouseEvent

protected void dispatchMouseEvent(String eventType,
                                  Element targetElement,
                                  Element relatedElement,
                                  Point clientXY,
                                  GraphicsNodeMouseEvent evt,
                                  boolean cancelable)

Dispatches a DOM MouseEvent according to the specified parameters.

Parameters:

eventType - the event type

targetElement - the target of the event

relatedElement - the related target if any

clientXY - the mouse coordinates in the client space

evt - the GVT GraphicsNodeMouseEvent

cancelable - true means the event is cancelable

getRelatedElement

protected Element getRelatedElement(GraphicsNodeMouseEvent evt)

Returns the related element according to the specified event.

Parameters:

evt - the GVT GraphicsNodeMouseEvent

getEventTarget

protected Element getEventTarget(GraphicsNode node,
                                 Point2D pt)

Returns the element that is the target of the specified event or null if any.

Parameters:

node - the graphics node that received the event

coords - the mouse coordinates in the GVT tree space