DragSourceEvent JDK 1.6)

Description

public class DragSourceEvent

This class is the base class for DragSourceDragEvent and DragSourceDropEvent.

DragSourceEvents are generated whenever the drag enters, moves over, or exits a drop site, when the drop action changes, and when the drag ends. The location for the generated DragSourceEvent specifies the mouse cursor location in screen coordinates at the moment this event occured.

In a multi-screen environment without a virtual device, the cursor location is specified in the coordinate system of the initiator GraphicsConfiguration. The initiator GraphicsConfiguration is the GraphicsConfiguration of the Component on which the drag gesture for the current drag operation was recognized. If the cursor location is outside the bounds of the initiator GraphicsConfiguration, the reported coordinates are clipped to fit within the bounds of that GraphicsConfiguration.

In a multi-screen environment with a virtual device, the location is specified in the corresponding virtual coordinate system. If the cursor location is outside the bounds of the virtual device the reported coordinates are clipped to fit within the bounds of the virtual device.

See also:

Constructors

public DragSourceEvent (DragSourceContext dsc)

Construct a DragSourceEvent given a specified DragSourceContext.

Construct a DragSourceEvent
given a specified DragSourceContext.
The coordinates for this DragSourceEvent
are not specified, so getLocation will return
null for this event.
Parameters:
- dsc - the DragSourceContext
Throws:
- IllegalArgumentException - if dsc is null.
See Also: DragSourceEvent.getLocation(),

public DragSourceEvent (DragSourceContext dsc, int x, int y)

Construct a DragSourceEvent given a specified DragSourceContext, and coordinates of the cursor location.

Construct a DragSourceEvent given a specified
DragSourceContext, and coordinates of the cursor
location.
Parameters:
- dsc - the DragSourceContext
- x - the horizontal coordinate for the cursor location
- y - the vertical coordinate for the cursor location
Throws:
- IllegalArgumentException - if dsc is null.
Since: 1.4

Methods

Hide/Show inherited methods

public DragSourceContext getDragSourceContext ()

This method returns the DragSourceContext that originated the event.

Returns: the DragSourceContext that originated the event

public Point getLocation ()

This method returns a Point indicating the cursor location in screen coordinates at the moment this event occured, or null if the cursor location is not specified for this event.

This method returns a Point indicating the cursor
location in screen coordinates at the moment this event occured, or
null if the cursor location is not specified for this
event.
Returns: the Point indicating the cursor location or null if the cursor location is not specified
Since: 1.4

public Object getSource () [Inherited From EventObject]

The object on which the Event initially occurred.

public int getX ()

This method returns the horizontal coordinate of the cursor location in screen coordinates at the moment this event occured, or zero if the cursor location is not specified for this event.

public int getY ()

This method returns the vertical coordinate of the cursor location in screen coordinates at the moment this event occured, or zero if the cursor location is not specified for this event.

public String toString () [Inherited From EventObject]

Returns a String representation of this EventObject.