ZSwingEventHandler (Jazz API)

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edu.umd.cs.jazz.event
Class ZSwingEventHandler

java.lang.Object
  |
  +--edu.umd.cs.jazz.event.ZSwingEventHandler

All Implemented Interfaces:: java.util.EventListener, ZEventHandler, ZMouseListener, ZMouseMotionListener

Event handler to send MousePressed, MouseReleased, MouseMoved, MouseClicked, and MouseDragged events on Swing components within a ZCanvas

Author:: Ben Bederson
, Lance Good
See Also:: ZMouseAdapter, ZMouseEvent, ZMouseListener, ZMouseMotionListener

Field Summary
`protected boolean`	`active` True when event handlers are set active.
`protected ZNode`	`listenNode` The node to listen to for events.

Constructor Summary
`ZSwingEventHandler(ZCanvas canvas)` Constructs a new ZSwingEventHandler for the given canvas.
`ZSwingEventHandler(ZCanvas canvas, ZNode node)` Constructs a new ZSwingEventHandler for the given canvas, and a node that will recieve the mouse events.

Method Summary
`boolean`	`isActive()` Determines if this event handler is active.
`void`	`mouseClicked(ZMouseEvent e1)` Invoked when the mouse has been clicked on a component.
`void`	`mouseDragged(ZMouseEvent e1)` Invoked when a mouse button is pressed on a node and then dragged.
`void`	`mouseEntered(ZMouseEvent e1)` Invoked when the mouse enters a component.
`void`	`mouseExited(ZMouseEvent e1)` Invoked when the mouse exits a component.
`void`	`mouseMoved(ZMouseEvent e1)` Invoked when the mouse button has been moved on a node (with no buttons no down).
`void`	`mousePressed(ZMouseEvent e1)` Invoked when a mouse button has been pressed on a component.
`void`	`mouseReleased(ZMouseEvent e1)` Invoked when a mouse button has been released on a component.
`void`	`setActive(boolean active)` Specifies whether this event handler is active or not.

Methods inherited from class java.lang.Object

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

Field Detail

protected ZNode listenNode

The node to listen to for events.

protected boolean active

True when event handlers are set active.

Constructor Detail

public ZSwingEventHandler(ZCanvas canvas,
                          ZNode node)

Constructs a new ZSwingEventHandler for the given canvas, and a node that will recieve the mouse events.
Parameters:: canvas - the canvas associated with this ZSwingEventHandler.; node - the node the mouse listeners will be attached to.

public ZSwingEventHandler(ZCanvas canvas)

Constructs a new ZSwingEventHandler for the given canvas.

Method Detail

public void setActive(boolean active)

Description copied from interface: ZEventHandler

Specifies whether this event handler is active or not.

public boolean isActive()

Determines if this event handler is active.