diva.canvas.event

Class LayerEventMulticaster

java.lang.Object

java.awt.AWTEventMulticaster

diva.canvas.event.LayerEventMulticaster

All Implemented Interfaces:

LayerListener, LayerMotionListener, ActionListener, AdjustmentListener, ComponentListener, ContainerListener, FocusListener, HierarchyBoundsListener, HierarchyListener, InputMethodListener, ItemListener, KeyListener, MouseListener, MouseMotionListener, MouseWheelListener, TextListener, WindowFocusListener, WindowListener, WindowStateListener, EventListener

public class LayerEventMulticaster
extends AWTEventMulticaster
implements LayerListener, LayerMotionListener

A subclass of the AWT event multi-caster, which adds support for layer events.

Version:

$Revision: 1.6 $

Author:

John Reekie

Field Summary

Fields inherited from class java.awt.AWTEventMulticaster

a, b

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LayerEventMulticaster(EventListener a, EventListener b) Create an event multicaster from two listeners.

Method Summary

Modifier and Type	Method and Description
static LayerListener	add(LayerListener a, LayerListener b) Adds layer-listener-a with layer-listener-b and returns the resulting multicast listener.
static LayerMotionListener	add(LayerMotionListener a, LayerMotionListener b) Adds layer-motion-listener-a with layer-motion-listener-b and returns the resulting multicast listener.
protected static EventListener	addInternal(EventListener a, EventListener b) Returns the resulting multicast listener from adding listener-a and listener-b together.
void	mouseClicked(LayerEvent e) Invoked when the mouse is clicked on a layer or figure.
void	mouseDragged(LayerEvent e) Invoked when the mouse moves while the button is still held down.
void	mouseEntered(LayerEvent e) Invoked when the mouse enters a layer or figure.
void	mouseExited(LayerEvent e) Invoked when the mouse exits a layer or figure.
void	mouseMoved(LayerEvent e) Invoked when the mouse moves while over a layer or figure.
void	mousePressed(LayerEvent e) Invoked when the mouse is pressed on a layer or figure.
void	mouseReleased(LayerEvent e) Invoked when the mouse is released on a layer or figure.
static LayerListener	remove(LayerListener l, LayerListener oldl) Removes the old layer-listener from layer-listener-l and returns the resulting multicast listener.
static LayerMotionListener	remove(LayerMotionListener l, LayerMotionListener oldl) Removes the old layer-motion-listener from layer-motion-listener-l and returns the resulting multicast listener.

Methods inherited from class java.awt.AWTEventMulticaster

actionPerformed, add, add, add, add, add, add, add, add, add, add, add, add, add, add, add, add, add, adjustmentValueChanged, ancestorMoved, ancestorResized, caretPositionChanged, componentAdded, componentHidden, componentMoved, componentRemoved, componentResized, componentShown, focusGained, focusLost, getListeners, hierarchyChanged, inputMethodTextChanged, itemStateChanged, keyPressed, keyReleased, keyTyped, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, mouseWheelMoved, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, remove, removeInternal, save, saveInternal, textValueChanged, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowGainedFocus, windowIconified, windowLostFocus, windowOpened, windowStateChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

LayerEventMulticaster

protected LayerEventMulticaster(EventListener a,
                                EventListener b)

Create an event multicaster from two listeners.

Method Detail

mouseDragged

public void mouseDragged(LayerEvent e)

Invoked when the mouse moves while the button is still held down.

Specified by:

mouseDragged in interface LayerListener

mouseEntered

public void mouseEntered(LayerEvent e)

Invoked when the mouse enters a layer or figure.

Specified by:

mouseEntered in interface LayerMotionListener

mouseExited

public void mouseExited(LayerEvent e)

Invoked when the mouse exits a layer or figure.

Specified by:

mouseExited in interface LayerMotionListener

mouseMoved

public void mouseMoved(LayerEvent e)

Invoked when the mouse moves while over a layer or figure.

Specified by:

mouseMoved in interface LayerMotionListener

mousePressed

public void mousePressed(LayerEvent e)

Invoked when the mouse is pressed on a layer or figure.

Specified by:

mousePressed in interface LayerListener

mouseReleased

public void mouseReleased(LayerEvent e)

Invoked when the mouse is released on a layer or figure.

Specified by:

mouseReleased in interface LayerListener

mouseClicked

public void mouseClicked(LayerEvent e)

Invoked when the mouse is clicked on a layer or figure.

Specified by:

mouseClicked in interface LayerListener

add

public static LayerListener add(LayerListener a,
                                LayerListener b)

Adds layer-listener-a with layer-listener-b and returns the resulting multicast listener.

addInternal

protected static EventListener addInternal(EventListener a,
                                           EventListener b)

Returns the resulting multicast listener from adding listener-a and listener-b together. If listener-a is null, it returns listener-b; If listener-b is null, it returns listener-a If neither are null, then it creates and returns a new AWTEventMulticaster instance which chains a with b.

Parameters:

a - event listener-a

b - event listener-b

add

public static LayerMotionListener add(LayerMotionListener a,
                                      LayerMotionListener b)

Adds layer-motion-listener-a with layer-motion-listener-b and returns the resulting multicast listener.

remove

public static LayerListener remove(LayerListener l,
                                   LayerListener oldl)

Removes the old layer-listener from layer-listener-l and returns the resulting multicast listener.

remove

public static LayerMotionListener remove(LayerMotionListener l,
                                         LayerMotionListener oldl)

Removes the old layer-motion-listener from layer-motion-listener-l and returns the resulting multicast listener.