canvas
Class DefaultListener

java.lang.Object
  |
  +--java.awt.dnd.DragGestureRecognizer
        |
        +--canvas.DefaultListener

All Implemented Interfaces:

Serializable

public class DefaultListener

extends DragGestureRecognizer

Provides an infrastructure for listening for mouse, keyboard, and drag-and-drop events.

See Also:

Serialized Form

Field Summary

static boolean	debug
static canvas.DragComponent	involvedInDrop

Fields inherited from class java.awt.dnd.DragGestureRecognizer

component, dragGestureListener, dragSource, events, sourceActions

Constructor Summary

DefaultListener(Component component)
Conststructs a new DefaultListener for the given component

Method Summary

protected void	addDragListener() This method is called by a DragComponent's addDragListener() method, you should not need to use it.
protected void	addMouseListener() This method is called by a DragComponent's addMouseListener() method, you should not need to use it.
void	charKeyPressed(char c)
void	downKeyPressed() This method should be overridden in a subclass to obtain functionality for "down" key presses.
void	enterKeyPressed() This method should be overridden in a subclass to obtain functionality for "enter" key presses.
void	leftKeyPressed() This method should be overridden in a subclass to obtain functionality for "left" key presses.
void	mouseClickedAt(int x, int y) This method should be overridden in a subclass to obtain functionality for Mouse Clicks within the associated component.
void	mouseDraggedTo(int x, int y) This method is called whenever the mouse is dragged, and the dragListener is not enabled, it should be overridden to obtain functionality.
void	mouseMovedTo(int x, int y) This method should be overridden in a subclass to obtain functionality for Mouse Movements within the associated component.
void	mousePressedAt(int x, int y) This method should be overridden in a subclass to obtain functionality for Mouse Presses within the associated component.
void	mouseReleasedAt(int x, int y) This method should be overridden in a subclass to obtain functionality for when the mouse is released.
void	registerKeyActions() This method is called by the DragComponent's addKeyboardListener() method, you should not need to use this method.
protected void	registerListeners() This method is called every time setComponent() is called, you should not need to use this method.
protected void	removeDragListener() This method is called by a DragComponent's removeDragListener() method, you should not need to use it.
void	removeKeyboardListener() This method is called by the DragComponent's removeKeyboardListener() method, you should not need to use this method.
protected void	removeMouseListener() This method is called by a DragComponent's removeMouseListener() method, you should not need to use it.
void	rightKeyPressed() This method should be overridden in a subclass to obtain functionality for "right" key presses.
static void	setDebug(boolean d) Sets the debug boolean.
void	spacebarPressed() This method should be overridden in a subclass to obtain functionality for spacebar presses.
protected void	unregisterListeners() This method will remove all of the listeners from the component this DefaultListener is associated with.
void	upKeyPressed() This method should be overridden in a subclass to obtain functionality for "up" key presses.

Methods inherited from class java.awt.dnd.DragGestureRecognizer

addDragGestureListener, appendEvent, fireDragGestureRecognized, getComponent, getDragSource, getSourceActions, getTriggerEvent, removeDragGestureListener, resetRecognizer, setComponent, setSourceActions

Methods inherited from class java.lang.Object

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

Field Detail

debug

public static boolean debug

involvedInDrop

public static canvas.DragComponent involvedInDrop

Constructor Detail

DefaultListener

public DefaultListener(Component component)

Conststructs a new DefaultListener for the given component

Parameters:

component - The Component that this listener will be associated with

Method Detail

setDebug

public static void setDebug(boolean d)

Sets the debug boolean.

addMouseListener

protected void addMouseListener()

This method is called by a DragComponent's addMouseListener() method, you should not need to use it.

removeMouseListener

protected void removeMouseListener()

This method is called by a DragComponent's removeMouseListener() method, you should not need to use it.

registerListeners

protected void registerListeners()

This method is called every time setComponent() is called, you should not need to use this method.

Specified by:

registerListeners in class DragGestureRecognizer

addDragListener

protected void addDragListener()

This method is called by a DragComponent's addDragListener() method, you should not need to use it.

removeDragListener

protected void removeDragListener()

This method is called by a DragComponent's removeDragListener() method, you should not need to use it.

unregisterListeners

protected void unregisterListeners()

This method will remove all of the listeners from the component this DefaultListener is associated with.

Specified by:

unregisterListeners in class DragGestureRecognizer

mouseDraggedTo

public void mouseDraggedTo(int x,
                           int y)

This method is called whenever the mouse is dragged, and the dragListener is not enabled, it should be overridden to obtain functionality.

Parameters:

x - the x-coordinate of the move

y - the y-coordinate of the move

mouseMovedTo

public void mouseMovedTo(int x,
                         int y)

This method should be overridden in a subclass to obtain functionality for Mouse Movements within the associated component.

Parameters:

x - the x-coordinate of the move

y - the y-coordinate of the move

mouseClickedAt

public void mouseClickedAt(int x,
                           int y)

This method should be overridden in a subclass to obtain functionality for Mouse Clicks within the associated component.

Parameters:

x - the x-coordinate of the click

y - the y-coordinate of the click

mousePressedAt

public void mousePressedAt(int x,
                           int y)

This method should be overridden in a subclass to obtain functionality for Mouse Presses within the associated component.

Parameters:

x - the x-coordinate of the press

y - the y-coordinate of the press

mouseReleasedAt

public void mouseReleasedAt(int x,
                            int y)

This method should be overridden in a subclass to obtain functionality for when the mouse is released.

Parameters:

x - the x-coordinate of the release

y - the y-coordinate of the release

charKeyPressed

public void charKeyPressed(char c)

upKeyPressed

public void upKeyPressed()

This method should be overridden in a subclass to obtain functionality for "up" key presses.

downKeyPressed

public void downKeyPressed()

This method should be overridden in a subclass to obtain functionality for "down" key presses.

leftKeyPressed

public void leftKeyPressed()

This method should be overridden in a subclass to obtain functionality for "left" key presses.

rightKeyPressed

public void rightKeyPressed()

This method should be overridden in a subclass to obtain functionality for "right" key presses.

enterKeyPressed

public void enterKeyPressed()

This method should be overridden in a subclass to obtain functionality for "enter" key presses.

spacebarPressed

public void spacebarPressed()

This method should be overridden in a subclass to obtain functionality for spacebar presses.

registerKeyActions

public void registerKeyActions()

This method is called by the DragComponent's addKeyboardListener() method, you should not need to use this method.

removeKeyboardListener

public void removeKeyboardListener()

This method is called by the DragComponent's removeKeyboardListener() method, you should not need to use this method.