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java.lang.Objectorg.apache.batik.gvt.event.AbstractAWTEventDispatcher
public abstract class AbstractAWTEventDispatcher
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.
This class is made abstract so that concrete versions can be made for different JDK versions.
Field Summary | |
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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 | |
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AbstractAWTEventDispatcher()
Constructs a new event dispatcher. |
Method Summary | |
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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 abstract void |
dispatchKeyEvent(KeyEvent evt)
Dispatches the specified AWT key event. |
protected void |
dispatchMouseEvent(MouseEvent evt)
Dispatches the specified AWT mouse event. |
AffineTransform |
getBaseTransform()
Returns the base transform applied to MouseEvent coordinates prior to dispatch. |
protected abstract int |
getButton(MouseEvent evt)
Returns the button whose state changed for the given event. |
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. |
protected abstract int |
getModifiers(InputEvent evt)
Returns the modifiers mask for this event. |
GraphicsNode |
getRootNode()
Returns the root node for MouseEvent dispatch containment searches and field selections. |
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 |
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. |
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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected GraphicsNode root
protected AffineTransform baseTransform
protected EventListenerList glisteners
protected GraphicsNode lastHit
protected GraphicsNode currentKeyEventTarget
protected List eventQueue
protected boolean eventDispatchEnabled
protected int eventQueueMaxSize
Constructor Detail |
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public AbstractAWTEventDispatcher()
Method Detail |
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public void setRootNode(GraphicsNode root)
setRootNode
in interface EventDispatcher
root
- the root nodepublic GraphicsNode getRootNode()
getRootNode
in interface EventDispatcher
public void setBaseTransform(AffineTransform t)
setBaseTransform
in interface EventDispatcher
t
- the affine transformpublic AffineTransform getBaseTransform()
getBaseTransform
in interface EventDispatcher
public void mousePressed(MouseEvent evt)
mousePressed
in interface MouseListener
evt
- the mouse event to propagatepublic void mouseReleased(MouseEvent evt)
mouseReleased
in interface MouseListener
evt
- the mouse event to propagatepublic void mouseEntered(MouseEvent evt)
mouseEntered
in interface MouseListener
evt
- the mouse event to propagatepublic void mouseExited(MouseEvent evt)
mouseExited
in interface MouseListener
evt
- the mouse event to propagatepublic void mouseClicked(MouseEvent evt)
mouseClicked
in interface MouseListener
evt
- the mouse event to propagatepublic void mouseMoved(MouseEvent evt)
mouseMoved
in interface MouseMotionListener
evt
- the mouse event to propagatepublic void mouseDragged(MouseEvent evt)
mouseDragged
in interface MouseMotionListener
evt
- the mouse event to propagatepublic void keyPressed(KeyEvent evt)
keyPressed
in interface KeyListener
evt
- the key event to propagatepublic void keyReleased(KeyEvent evt)
keyReleased
in interface KeyListener
evt
- the key event to propagatepublic void keyTyped(KeyEvent evt)
keyTyped
in interface KeyListener
evt
- the key event to propagatepublic void addGraphicsNodeMouseListener(GraphicsNodeMouseListener l)
addGraphicsNodeMouseListener
in interface EventDispatcher
l
- the listener to addpublic void removeGraphicsNodeMouseListener(GraphicsNodeMouseListener l)
removeGraphicsNodeMouseListener
in interface EventDispatcher
l
- the listener to removepublic void addGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)
addGraphicsNodeMouseWheelListener
in interface EventDispatcher
l
- the listener to addpublic void removeGraphicsNodeMouseWheelListener(GraphicsNodeMouseWheelListener l)
removeGraphicsNodeMouseWheelListener
in interface EventDispatcher
l
- the listener to removepublic void addGraphicsNodeKeyListener(GraphicsNodeKeyListener l)
addGraphicsNodeKeyListener
in interface EventDispatcher
l
- the listener to addpublic void removeGraphicsNodeKeyListener(GraphicsNodeKeyListener l)
removeGraphicsNodeKeyListener
in interface EventDispatcher
l
- the listener to removepublic EventListener[] getListeners(Class listenerType)
getListeners
in interface EventDispatcher
listenerType
- the type of the listeners to returnpublic void setEventDispatchEnabled(boolean b)
public void setEventQueueMaxSize(int n)
public void dispatchEvent(EventObject evt)
dispatchEvent
in interface EventDispatcher
evt
- the event to dispatchprotected int getCurrentLockState()
protected abstract void dispatchKeyEvent(KeyEvent evt)
evt
- the key event to dispatchprotected abstract int getModifiers(InputEvent evt)
InputEvent.getModifiers()
in JRE 1.3 or
InputEvent.getModifiersEx()
in JREs >= 1.4.
protected abstract int getButton(MouseEvent evt)
InputEvent.getModifiers()
in JRE
1.3 or MouseEvent.getButton()
in JREs >= 1.4.
protected void dispatchMouseEvent(MouseEvent evt)
evt
- the mouse event to dispatchprotected void processMouseEvent(GraphicsNodeMouseEvent evt)
evt
- the event to processpublic void processKeyEvent(GraphicsNodeKeyEvent evt)
evt
- the evt to dispatchpublic void setNodeIncrementEvent(InputEvent e)
setNodeIncrementEvent
in interface EventDispatcher
public void setNodeDecrementEvent(InputEvent e)
setNodeDecrementEvent
in interface EventDispatcher
protected boolean isNodeIncrementEvent(InputEvent e)
e
- the input eventprotected boolean isNodeDecrementEvent(InputEvent e)
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