AWTEventDispatcher (Apache Batik Javadoc)

java.lang.Object
- org.apache.batik.gvt.event.AWTEventDispatcher

All Implemented Interfaces:

KeyListener, MouseListener, MouseMotionListener, MouseWheelListener, EventListener, EventDispatcher
```
public class AWTEventDispatcher
extends Object
implements EventDispatcher, MouseListener, MouseMotionListener, MouseWheelListener, KeyListener
```
An EventDispatcher implementation based on AWT events.
Mouse events are dispatched to their "containing" node (the GraphicsNode corresponding to the mouse event coordinate). Searches for containment are performed from the EventDispatcher's "root" node.

Field Summary

Fields
Modifier and Type	Field and Description
`protected AffineTransform`	`baseTransform` The base AffineTransform for InputEvent-to-GraphicsNodeEvent coordinates as determined by setBaseTransform().
`protected GraphicsNode`	`currentKeyEventTarget` The current GraphicsNode targeted by an key events.
`protected boolean`	`eventDispatchEnabled`
`protected List`	`eventQueue` These are used to queue events while a rendering event is in progress.
`protected int`	`eventQueueMaxSize`
`protected EventListenerList`	`glisteners` The global listener list.
`protected GraphicsNode`	`lastHit` The lastest node which has been targeted by an event.
`protected GraphicsNode`	`root` The root GraphicsNode as determined by setRootNode().

Constructor Summary

Constructors
Constructor and Description

AWTEventDispatcher()
Constructs a new event dispatcher.

Constructors
Constructor and Description
`AWTEventDispatcher()` Constructs a new event dispatcher.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addGraphicsNodeKeyListener(GraphicsNodeKeyListener l)` Adds the specified 'global' GraphicsNodeKeyListener which is notified of all KeyEvents dispatched.
`void`	`addGraphicsNodeMouseListener(GraphicsNodeMouseListener l)` Adds the specified 'global' GraphicsNodeMouseListener which is notified of all MouseEvents dispatched.
`void`	`addGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)` Adds the specified 'global' GraphicsNodeMouseWheelListener which is notified of all MouseWheelEvents dispatched.
`void`	`dispatchEvent(EventObject evt)` Dispatches the specified AWT event.
`protected void`	`dispatchKeyEvent(KeyEvent evt)` Dispatches the specified AWT key event.
`protected void`	`dispatchMouseEvent(MouseEvent evt)` Dispatches the specified AWT mouse event.
`protected void`	`dispatchMouseWheelEvent(MouseWheelEvent evt)` Dispatches the specified AWT mouse wheel event.
`AffineTransform`	`getBaseTransform()` Returns the base transform applied to MouseEvent coordinates prior to dispatch.
`protected int`	`getCurrentLockState()` Returns a bitmask representing the state of the key locks.
`EventListener[]`	`getListeners(Class listenerType)` Returns an array of listeners that were added to this event dispatcher and of the specified type.
`GraphicsNode`	`getRootNode()` Returns the root node for MouseEvent dispatch containment searches and field selections.
`protected static boolean`	`isMetaDown(int modifiers)` Returns whether the meta key is down according to the given modifiers bitfield.
`protected boolean`	`isNodeDecrementEvent(InputEvent e)` Returns true if the input event e is a node decrement event, false otherwise.
`protected boolean`	`isNodeIncrementEvent(InputEvent e)` Returns true if the input event e is a node increment event, false otherwise.
`void`	`keyPressed(KeyEvent evt)` Dispatches the specified AWT key event down to the GVT tree.
`void`	`keyReleased(KeyEvent evt)` Dispatches the specified AWT key event down to the GVT tree.
`void`	`keyTyped(KeyEvent evt)` Dispatches the specified AWT key event down to the GVT tree.
`void`	`mouseClicked(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseDragged(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseEntered(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseExited(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseMoved(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mousePressed(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseReleased(MouseEvent evt)` Dispatches the specified AWT mouse event down to the GVT tree.
`void`	`mouseWheelMoved(MouseWheelEvent evt)` Dispatches the specified AWT mouse wheel event down to the GVT tree.
`void`	`processKeyEvent(GraphicsNodeKeyEvent evt)` Dispatches a graphics node key event to by firing the 'global' listeners attached to this event dispatcher.
`protected void`	`processMouseEvent(GraphicsNodeMouseEvent evt)` Processes the specified event by firing the 'global' listeners attached to this event dispatcher.
`protected void`	`processMouseWheelEvent(GraphicsNodeMouseWheelEvent evt)` Processes the specified event by firing the 'global' listeners attached to this event dispatcher.
`void`	`removeGraphicsNodeKeyListener(GraphicsNodeKeyListener l)` Removes the specified 'global' GraphicsNodeKeyListener which is notified of all KeyEvents dispatched.
`void`	`removeGraphicsNodeMouseListener(GraphicsNodeMouseListener l)` Removes the specified 'global' GraphicsNodeMouseListener which is notified of all MouseEvents dispatched.
`void`	`removeGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)` Removes the specified 'global' GraphicsNodeMouseWheelListener which is notified of all MouseWheelEvents dispatched.
`void`	`setBaseTransform(AffineTransform t)` Sets the base transform applied to MouseEvent coordinates prior to dispatch.
`void`	`setEventDispatchEnabled(boolean b)`
`void`	`setEventQueueMaxSize(int n)`
`void`	`setNodeDecrementEvent(InputEvent e)` Associates all InputEvents of type `e.getID()` with "decrementing" of the currently selected GraphicsNode.
`void`	`setNodeIncrementEvent(InputEvent e)` Associates all InputEvents of type `e.getID()` with "incrementing" of the currently selected GraphicsNode.
`void`	`setRootNode(GraphicsNode root)` Sets the root node for MouseEvent dispatch containment searches and field selections.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - root
```
protected GraphicsNode root
```
    The root GraphicsNode as determined by setRootNode().
  - baseTransform
```
protected AffineTransform baseTransform
```
    The base AffineTransform for InputEvent-to-GraphicsNodeEvent coordinates as determined by setBaseTransform().
  - glisteners
```
protected EventListenerList glisteners
```
    The global listener list.
  - lastHit
```
protected GraphicsNode lastHit
```
    The lastest node which has been targeted by an event.
  - currentKeyEventTarget
```
protected GraphicsNode currentKeyEventTarget
```
    The current GraphicsNode targeted by an key events.
  - eventQueue
```
protected List eventQueue
```
    These are used to queue events while a rendering event is in progress.
  - eventDispatchEnabled
```
protected boolean eventDispatchEnabled
```
  - eventQueueMaxSize
```
protected int eventQueueMaxSize
```
- Constructor Detail
  - AWTEventDispatcher
```
public AWTEventDispatcher()
```
    Constructs a new event dispatcher.
- Method Detail
  - setRootNode
```
public void setRootNode(GraphicsNode root)
```
    Sets the root node for MouseEvent dispatch containment searches and field selections.
    
    Specified by:
    
    setRootNode in interface EventDispatcher
    
    Parameters:
    root - the root node
  - getRootNode
```
public GraphicsNode getRootNode()
```
    Returns the root node for MouseEvent dispatch containment searches and field selections.
    
    Specified by:
    
    getRootNode in interface EventDispatcher
  - setBaseTransform
```
public void setBaseTransform(AffineTransform t)
```
    Sets the base transform applied to MouseEvent coordinates prior to dispatch.
    
    Specified by:
    
    setBaseTransform in interface EventDispatcher
    
    Parameters:
    t - the affine transform
  - getBaseTransform
```
public AffineTransform getBaseTransform()
```
    Returns the base transform applied to MouseEvent coordinates prior to dispatch.
    
    Specified by:
    
    getBaseTransform in interface EventDispatcher
  - mousePressed
```
public void mousePressed(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mousePressed in interface MouseListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseReleased
```
public void mouseReleased(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseReleased in interface MouseListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseEntered
```
public void mouseEntered(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseEntered in interface MouseListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseExited
```
public void mouseExited(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseExited in interface MouseListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseClicked
```
public void mouseClicked(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseClicked in interface MouseListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseMoved
```
public void mouseMoved(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseMoved in interface MouseMotionListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseDragged
```
public void mouseDragged(MouseEvent evt)
```
    Dispatches the specified AWT mouse event down to the GVT tree. The mouse event is mutated to a GraphicsNodeMouseEvent.
    
    Specified by:
    
    mouseDragged in interface MouseMotionListener
    
    Parameters:
    evt - the mouse event to propagate
  - mouseWheelMoved
```
public void mouseWheelMoved(MouseWheelEvent evt)
```
    Dispatches the specified AWT mouse wheel event down to the GVT tree. The mouse wheel event is mutated to a GraphicsNodeMouseWheelEvent.
    
    Specified by:
    
    mouseWheelMoved in interface MouseWheelListener
    
    Parameters:
    evt - the mouse event to propagate
  - keyPressed
```
public void keyPressed(KeyEvent evt)
```
    Dispatches the specified AWT key event down to the GVT tree. The mouse event is mutated to a GraphicsNodeKeyEvent.
    
    Specified by:
    
    keyPressed in interface KeyListener
    
    Parameters:
    evt - the key event to propagate
  - keyReleased
```
public void keyReleased(KeyEvent evt)
```
    Dispatches the specified AWT key event down to the GVT tree. The mouse event is mutated to a GraphicsNodeKeyEvent.
    
    Specified by:
    
    keyReleased in interface KeyListener
    
    Parameters:
    evt - the key event to propagate
  - keyTyped
```
public void keyTyped(KeyEvent evt)
```
    Dispatches the specified AWT key event down to the GVT tree. The mouse event is mutated to a GraphicsNodeKeyEvent.
    
    Specified by:
    
    keyTyped in interface KeyListener
    
    Parameters:
    evt - the key event to propagate
  - addGraphicsNodeMouseListener
```
public void addGraphicsNodeMouseListener(GraphicsNodeMouseListener l)
```
    Adds the specified 'global' GraphicsNodeMouseListener which is notified of all MouseEvents dispatched.
    
    Specified by:
    
    addGraphicsNodeMouseListener in interface EventDispatcher
    
    Parameters:
    l - the listener to add
  - removeGraphicsNodeMouseListener
```
public void removeGraphicsNodeMouseListener(GraphicsNodeMouseListener l)
```
    Removes the specified 'global' GraphicsNodeMouseListener which is notified of all MouseEvents dispatched.
    
    Specified by:
    
    removeGraphicsNodeMouseListener in interface EventDispatcher
    
    Parameters:
    l - the listener to remove
  - addGraphicsNodeMouseWheelListener
```
public void addGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)
```
    Adds the specified 'global' GraphicsNodeMouseWheelListener which is notified of all MouseWheelEvents dispatched.
    
    Specified by:
    
    addGraphicsNodeMouseWheelListener in interface EventDispatcher
    
    Parameters:
    l - the listener to add
  - removeGraphicsNodeMouseWheelListener
```
public void removeGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)
```
    Removes the specified 'global' GraphicsNodeMouseWheelListener which is notified of all MouseWheelEvents dispatched.
    
    Specified by:
    
    removeGraphicsNodeMouseWheelListener in interface EventDispatcher
    
    Parameters:
    l - the listener to remove
  - addGraphicsNodeKeyListener
```
public void addGraphicsNodeKeyListener(GraphicsNodeKeyListener l)
```
    Adds the specified 'global' GraphicsNodeKeyListener which is notified of all KeyEvents dispatched.
    
    Specified by:
    
    addGraphicsNodeKeyListener in interface EventDispatcher
    
    Parameters:
    l - the listener to add
  - removeGraphicsNodeKeyListener
```
public void removeGraphicsNodeKeyListener(GraphicsNodeKeyListener l)
```
    Removes the specified 'global' GraphicsNodeKeyListener which is notified of all KeyEvents dispatched.
    
    Specified by:
    
    removeGraphicsNodeKeyListener in interface EventDispatcher
    
    Parameters:
    l - the listener to remove
  - getListeners
```
public EventListener[] getListeners(Class listenerType)
```
    Returns an array of listeners that were added to this event dispatcher and of the specified type.
    
    Specified by:
    
    getListeners in interface EventDispatcher
    
    Parameters:
    listenerType - the type of the listeners to return
  - setEventDispatchEnabled
```
public void setEventDispatchEnabled(boolean b)
```
  - setEventQueueMaxSize
```
public void setEventQueueMaxSize(int n)
```
  - dispatchEvent
```
public void dispatchEvent(EventObject evt)
```
    Dispatches the specified AWT event.
    
    Specified by:
    
    dispatchEvent in interface EventDispatcher
    
    Parameters:
    evt - the event to dispatch
  - getCurrentLockState
```
protected int getCurrentLockState()
```
    Returns a bitmask representing the state of the key locks.
  - dispatchKeyEvent
```
protected void dispatchKeyEvent(KeyEvent evt)
```
    Dispatches the specified AWT key event.
    
    Parameters:
    evt - the key event to dispatch
  - dispatchMouseEvent
```
protected void dispatchMouseEvent(MouseEvent evt)
```
    Dispatches the specified AWT mouse event.
    
    Parameters:
    evt - the mouse event to dispatch
  - dispatchMouseWheelEvent
```
protected void dispatchMouseWheelEvent(MouseWheelEvent evt)
```
    Dispatches the specified AWT mouse wheel event.
    
    Parameters:
    evt - the mouse wheel event to dispatch
  - processMouseEvent
```
protected void processMouseEvent(GraphicsNodeMouseEvent evt)
```
    Processes the specified event by firing the 'global' listeners attached to this event dispatcher.
    
    Parameters:
    evt - the event to process
  - processMouseWheelEvent
```
protected void processMouseWheelEvent(GraphicsNodeMouseWheelEvent evt)
```
    Processes the specified event by firing the 'global' listeners attached to this event dispatcher.
    
    Parameters:
    evt - the event to process
  - processKeyEvent
```
public void processKeyEvent(GraphicsNodeKeyEvent evt)
```
    Dispatches a graphics node key event to by firing the 'global' listeners attached to this event dispatcher.
    
    Parameters:
    evt - the evt to dispatch
  - setNodeIncrementEvent
```
public void setNodeIncrementEvent(InputEvent e)
```
    Associates all InputEvents of type e.getID() with "incrementing" of the currently selected GraphicsNode.
    
    Specified by:
    
    setNodeIncrementEvent in interface EventDispatcher
  - setNodeDecrementEvent
```
public void setNodeDecrementEvent(InputEvent e)
```
    Associates all InputEvents of type e.getID() with "decrementing" of the currently selected GraphicsNode. The notion of "currently selected" GraphicsNode is used for dispatching KeyEvents.
    
    Specified by:
    
    setNodeDecrementEvent in interface EventDispatcher
  - isNodeIncrementEvent
```
protected boolean isNodeIncrementEvent(InputEvent e)
```
    Returns true if the input event e is a node increment event, false otherwise.
    
    Parameters:
    e - the input event
  - isNodeDecrementEvent
```
protected boolean isNodeDecrementEvent(InputEvent e)
```
    Returns true if the input event e is a node decrement event, false otherwise.
  - isMetaDown
```
protected static boolean isMetaDown(int modifiers)
```
    Returns whether the meta key is down according to the given modifiers bitfield.

Class AWTEventDispatcher

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

root

baseTransform

glisteners

lastHit

currentKeyEventTarget

eventQueue

eventDispatchEnabled

eventQueueMaxSize

Constructor Detail

AWTEventDispatcher

Method Detail

setRootNode

getRootNode

setBaseTransform

getBaseTransform

mousePressed

mouseReleased

mouseEntered

mouseExited

mouseClicked

mouseMoved

mouseDragged

mouseWheelMoved

keyPressed

keyReleased

keyTyped

addGraphicsNodeMouseListener

removeGraphicsNodeMouseListener

addGraphicsNodeMouseWheelListener

removeGraphicsNodeMouseWheelListener

addGraphicsNodeKeyListener

removeGraphicsNodeKeyListener

getListeners

setEventDispatchEnabled

setEventQueueMaxSize

dispatchEvent

getCurrentLockState

dispatchKeyEvent

dispatchMouseEvent

dispatchMouseWheelEvent

processMouseEvent

processMouseWheelEvent

processKeyEvent

setNodeIncrementEvent

setNodeDecrementEvent

isNodeIncrementEvent

isNodeDecrementEvent

isMetaDown