public abstract class

MouseDragGestureRecognizer

extends DragGestureRecognizer
implements MouseListener MouseMotionListener

java.lang.Object
↳	java.awt.dnd.DragGestureRecognizer
	↳	java.awt.dnd.MouseDragGestureRecognizer

Class Overview

This abstract subclass of DragGestureRecognizer defines a DragGestureRecognizer for mouse-based gestures. Each platform implements its own concrete subclass of this class, available via the Toolkit.createDragGestureRecognizer() method, to encapsulate the recognition of the platform dependent mouse gesture(s) that initiate a Drag and Drop operation.

Mouse drag gesture recognizers should honor the drag gesture motion threshold, available through getDragThreshold(). A drag gesture should be recognized only when the distance in either the horizontal or vertical direction between the location of the latest mouse dragged event and the location of the corresponding mouse button pressed event is greater than the drag gesture motion threshold.

Drag gesture recognizers created with createDefaultDragGestureRecognizer(Component, int, DragGestureListener) follow this convention.

Summary

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Inherited Fields

From class java.awt.dnd.DragGestureRecognizer

Protected Constructors
	MouseDragGestureRecognizer(DragSource ds, Component c, int act, DragGestureListener dgl) Construct a new `MouseDragGestureRecognizer` given the `DragSource` for the `Component` c, the `Component` to observe, the action(s) permitted for this drag operation, and the `DragGestureListener` to notify when a drag gesture is detected.
	MouseDragGestureRecognizer(DragSource ds, Component c, int act) Construct a new `MouseDragGestureRecognizer` given the `DragSource` for the `Component` c, the `Component` to observe, and the action(s) permitted for this drag operation.
	MouseDragGestureRecognizer(DragSource ds, Component c) Construct a new `MouseDragGestureRecognizer` given the `DragSource` for the `Component` c, and the `Component` to observe.
	MouseDragGestureRecognizer(DragSource ds) Construct a new `MouseDragGestureRecognizer` given the `DragSource` for the `Component`.

Public Methods
void	mouseClicked(MouseEvent e) Invoked when the mouse has been clicked on a component.
void	mouseDragged(MouseEvent e) Invoked when a mouse button is pressed on a component.
void	mouseEntered(MouseEvent e) Invoked when the mouse enters a component.
void	mouseExited(MouseEvent e) Invoked when the mouse exits a component.
void	mouseMoved(MouseEvent e) Invoked when the mouse button has been moved on a component (with no buttons no down).
void	mousePressed(MouseEvent e) Invoked when a mouse button has been pressed on a `Component`.
void	mouseReleased(MouseEvent e) Invoked when a mouse button has been released on a component.

Protected Methods
void	registerListeners() register this DragGestureRecognizer's Listeners with the Component
void	unregisterListeners() unregister this DragGestureRecognizer's Listeners with the Component subclasses must override this method

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Inherited Methods

From class java.awt.dnd.DragGestureRecognizer

synchronized void	addDragGestureListener(DragGestureListener dgl) Register a new `DragGestureListener`.
synchronized void	appendEvent(InputEvent awtie) Listeners registered on the Component by this Recognizer shall record all Events that are recognized as part of the series of Events that go to comprise a Drag and Drop initiating gesture via this API.
synchronized void	fireDragGestureRecognized(int dragAction, Point p) Notify the DragGestureListener that a Drag and Drop initiating gesture has occurred.
synchronized Component	getComponent() This method returns the `Component` that is to be "observed" by the `DragGestureRecognizer` for drag initiating gestures.
DragSource	getDragSource() This method returns the `DragSource` this `DragGestureRecognizer` will use in order to process the Drag and Drop operation.
synchronized int	getSourceActions() This method returns an int representing the type of action(s) this Drag and Drop operation will support.
InputEvent	getTriggerEvent() This method returns the first event in the series of events that initiated the Drag and Drop operation.
abstract void	registerListeners() register this DragGestureRecognizer's Listeners with the Component subclasses must override this method
synchronized void	removeDragGestureListener(DragGestureListener dgl) unregister the current DragGestureListener
void	resetRecognizer() Reset the Recognizer, if its currently recognizing a gesture, ignore it.
synchronized void	setComponent(Component c) set the Component that the DragGestureRecognizer is associated with registerListeners() and unregisterListeners() are called as a side effect as appropriate.
synchronized void	setSourceActions(int actions) This method sets the permitted source drag action(s) for this Drag and Drop operation.
abstract void	unregisterListeners() unregister this DragGestureRecognizer's Listeners with the Component subclasses must override this method

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

From interface java.awt.event.MouseListener

From interface java.awt.event.MouseMotionListener

Protected Constructors

protected MouseDragGestureRecognizer (DragSource ds, Component c, int act, DragGestureListener dgl)

Construct a new MouseDragGestureRecognizer given the DragSource for the Component c, the Component to observe, the action(s) permitted for this drag operation, and the DragGestureListener to notify when a drag gesture is detected.

Parameters

ds	The DragSource for the Component c
c	The Component to observe
act	The actions permitted for this Drag
dgl	The DragGestureListener to notify when a gesture is detected

protected MouseDragGestureRecognizer (DragSource ds, Component c, int act)

Construct a new MouseDragGestureRecognizer given the DragSource for the Component c, the Component to observe, and the action(s) permitted for this drag operation.

Parameters

ds	The DragSource for the Component c
c	The Component to observe
act	The actions permitted for this drag

protected MouseDragGestureRecognizer (DragSource ds, Component c)

Construct a new MouseDragGestureRecognizer given the DragSource for the Component c, and the Component to observe.

Parameters

ds	The DragSource for the Component c
c	The Component to observe

protected MouseDragGestureRecognizer (DragSource ds)

Construct a new MouseDragGestureRecognizer given the DragSource for the Component.

Parameters

ds	The DragSource for the Component

Public Methods

public void mouseClicked (MouseEvent e)

Invoked when the mouse has been clicked on a component.

Parameters

e	the `MouseEvent`

public void mouseDragged (MouseEvent e)

Invoked when a mouse button is pressed on a component.

Parameters

e	the `MouseEvent`

public void mouseEntered (MouseEvent e)

Invoked when the mouse enters a component.

Parameters

e	the `MouseEvent`

public void mouseExited (MouseEvent e)

Invoked when the mouse exits a component.

Parameters

e	the `MouseEvent`

public void mouseMoved (MouseEvent e)

Invoked when the mouse button has been moved on a component (with no buttons no down).

Parameters

e	the `MouseEvent`

public void mousePressed (MouseEvent e)

Invoked when a mouse button has been pressed on a Component.

Parameters

e	the `MouseEvent`

public void mouseReleased (MouseEvent e)

Invoked when a mouse button has been released on a component.

Parameters

e	the `MouseEvent`

Protected Methods

protected void registerListeners ()

register this DragGestureRecognizer's Listeners with the Component

protected void unregisterListeners ()

unregister this DragGestureRecognizer's Listeners with the Component subclasses must override this method

Interfaces

Classes

Exceptions

MouseDragGestureRecognizer

Class Overview

See Also

Summary

Protected Constructors

protected MouseDragGestureRecognizer (DragSource ds, Component c, int act, DragGestureListener dgl)

Parameters

protected MouseDragGestureRecognizer (DragSource ds, Component c, int act)

Parameters

protected MouseDragGestureRecognizer (DragSource ds, Component c)

Parameters

protected MouseDragGestureRecognizer (DragSource ds)

Parameters

Public Methods

public void mouseClicked (MouseEvent e)

Parameters

public void mouseDragged (MouseEvent e)

Parameters

public void mouseEntered (MouseEvent e)

Parameters

public void mouseExited (MouseEvent e)

Parameters

public void mouseMoved (MouseEvent e)

Parameters

public void mousePressed (MouseEvent e)

Parameters

public void mouseReleased (MouseEvent e)

Parameters

Protected Methods

protected void registerListeners ()

protected void unregisterListeners ()