java.awt.dnd
abstract public class: MouseDragGestureRecognizer [javadoc |
source]
java.lang.Object
java.awt.dnd.DragGestureRecognizer
java.awt.dnd.MouseDragGestureRecognizer
All Implemented Interfaces:
MouseListener, MouseMotionListener, Serializable
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
DragSource#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
DragSource#createDefaultDragGestureRecognizer
follow this convention.
| Constructor: |
|---|
 protected MouseDragGestureRecognizer(DragSource ds) {
this(ds, null);
}
Construct a new MouseDragGestureRecognizer
given the DragSource for the Component.
Parameters:
ds - The DragSource for the Component
|
protected MouseDragGestureRecognizer(DragSource ds,
Component c) {
this(ds, c, DnDConstants.ACTION_NONE);
} 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,
Component c,
int act) {
this(ds, c, act, null);
} 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,
int act,
DragGestureListener dgl) {
super(ds, c, act, 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
|
| Methods from java.awt.dnd.DragGestureRecognizer: |
|---|
|
addDragGestureListener, appendEvent, fireDragGestureRecognized, getComponent, getDragSource, getSourceActions, getTriggerEvent, registerListeners, removeDragGestureListener, resetRecognizer, setComponent, setSourceActions, unregisterListeners |
| Methods from java.lang.Object: |
|---|
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Method from java.awt.dnd.MouseDragGestureRecognizer Detail: |
|---|
public void mouseClicked(MouseEvent e) {
} Invoked when the mouse has been clicked on a component.
|
public void mouseDragged(MouseEvent e) {
} Invoked when a mouse button is pressed on a component.
|
public void mouseEntered(MouseEvent e) {
} Invoked when the mouse enters a component.
|
public void mouseExited(MouseEvent e) {
} Invoked when the mouse exits a component.
|
public void mouseMoved(MouseEvent e) {
} Invoked when the mouse button has been moved on a component
(with no buttons no down).
|
public void mousePressed(MouseEvent e) {
} Invoked when a mouse button has been
pressed on a Component.
|
public void mouseReleased(MouseEvent e) {
} Invoked when a mouse button has been released on a component.
|
protected void registerListeners() {
component.addMouseListener(this);
component.addMouseMotionListener(this);
} register this DragGestureRecognizer's Listeners with the Component |
protected void unregisterListeners() {
component.removeMouseListener(this);
component.removeMouseMotionListener(this);
} unregister this DragGestureRecognizer's Listeners with the Component
subclasses must override this method |
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