java.lang.Object java.awt.dnd.DragGestureRecognizer java.awt.dnd.MouseDragGestureRecognizer
This abstract subclass of DragGestureRecognizer defines a DragGestureRecognizer for
mouse-based
mouse based
gestures. Each platform
implements
will implement
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(java.awt.Component, int, java.awt.dnd.DragGestureListener) follow this convention.
Field Summary |
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Fields inherited from class java.awt.dnd. DragGestureRecognizer |
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component , dragGestureListener , dragSource , events , sourceActions |
Constructor Summary | |
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protected |
MouseDragGestureRecognizer
(
DragSource
ds) Construct a new MouseDragGestureRecognizer given the DragSource for the Component. |
protected |
MouseDragGestureRecognizer
(
DragSource
ds,
Component
c) Construct a new MouseDragGestureRecognizer given the DragSource for the Component c, and the Component to observe. |
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. |
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. |
Method Summary | |
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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 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 |
Methods inherited from class java.awt.dnd. DragGestureRecognizer |
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addDragGestureListener , appendEvent , fireDragGestureRecognized , getComponent , getDragSource , getSourceActions , getTriggerEvent , removeDragGestureListener , resetRecognizer , setComponent , setSourceActions |
Methods inherited from class java.lang. Object |
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clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
Constructor Detail |
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protected MouseDragGestureRecognizer(DragSource ds, Component c, int act, DragGestureListener dgl)
protected MouseDragGestureRecognizer(DragSource ds, Component c, int act)
protected MouseDragGestureRecognizer(DragSource ds, Component c)
protected MouseDragGestureRecognizer(DragSource ds)
Method Detail |
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protected void registerListeners()
protected void unregisterListeners()
public void mouseClicked(MouseEvent e)
public void mousePressed(MouseEvent e)
public void mouseReleased(MouseEvent e)
public void mouseEntered(MouseEvent e)
public void mouseExited(MouseEvent e)
public void mouseDragged(MouseEvent e)
public void mouseMoved(MouseEvent e)