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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.util.EventObject
java.awt.dnd.DragSourceEvent
public class DragSourceEvent
This class is the base class for
DragSourceDragEvent
and
DragSourceDropEvent
.
DragSourceEvent
s 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.
Field Summary |
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Fields inherited from class java.util.EventObject |
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source |
Constructor Summary | |
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DragSourceEvent(DragSourceContext dsc)
Construct a DragSourceEvent
given a specified DragSourceContext . |
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DragSourceEvent(DragSourceContext dsc,
int x,
int y)
Construct a DragSourceEvent given a specified
DragSourceContext , and coordinates of the cursor
location. |
Method Summary | |
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DragSourceContext |
getDragSourceContext()
This method returns the DragSourceContext that
originated the event. |
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. |
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. |
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. |
Methods inherited from class java.util.EventObject |
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getSource, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public DragSourceEvent(DragSourceContext dsc)
DragSourceEvent
given a specified DragSourceContext
.
The coordinates for this DragSourceEvent
are not specified, so getLocation
will return
null
for this event.
dsc
- the DragSourceContext
IllegalArgumentException
- if dsc
is null
.getLocation()
public DragSourceEvent(DragSourceContext dsc, int x, int y)
DragSourceEvent
given a specified
DragSourceContext
, and coordinates of the cursor
location.
dsc
- the DragSourceContext
x
- the horizontal coordinate for the cursor locationy
- the vertical coordinate for the cursor location
IllegalArgumentException
- if dsc
is null
.Method Detail |
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public DragSourceContext getDragSourceContext()
DragSourceContext
that
originated the event.
DragSourceContext
that originated the eventpublic Point getLocation()
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.
Point
indicating the cursor location
or null
if the cursor location is not specifiedpublic int getX()
public int getY()
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Java™ Platform Standard Ed. 6 |
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