- java.lang.Object
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- java.util.EventObject
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- java.awt.dnd.DragSourceEvent
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- All Implemented Interfaces:
Serializable
- Direct Known Subclasses:
DragSourceDragEvent,DragSourceDropEvent
public class DragSourceEvent extends EventObject
This class is the base class forDragSourceDragEventandDragSourceDropEvent.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 generatedDragSourceEventspecifies the mouse cursor location in screen coordinates at the moment this event occurred.In a multi-screen environment without a virtual device, the cursor location is specified in the coordinate system of the initiator
GraphicsConfiguration. The initiatorGraphicsConfigurationis theGraphicsConfigurationof theComponenton which the drag gesture for the current drag operation was recognized. If the cursor location is outside the bounds of the initiatorGraphicsConfiguration, the reported coordinates are clipped to fit within the bounds of thatGraphicsConfiguration.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.
- Since:
- 1.2
- See Also:
- Serialized Form
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Field Summary
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Fields declared in class java.util.EventObject
source
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Constructor Summary
Constructors Constructor Description DragSourceEvent(DragSourceContext dsc)Construct aDragSourceEventgiven a specifiedDragSourceContext.DragSourceEvent(DragSourceContext dsc, int x, int y)Construct aDragSourceEventgiven a specifiedDragSourceContext, and coordinates of the cursor location.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description DragSourceContextgetDragSourceContext()This method returns theDragSourceContextthat originated the event.PointgetLocation()This method returns aPointindicating the cursor location in screen coordinates at the moment this event occurred, ornullif the cursor location is not specified for this event.intgetX()This method returns the horizontal coordinate of the cursor location in screen coordinates at the moment this event occurred, or zero if the cursor location is not specified for this event.intgetY()This method returns the vertical coordinate of the cursor location in screen coordinates at the moment this event occurred, or zero if the cursor location is not specified for this event.-
Methods declared in class java.util.EventObject
getSource, toString
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Constructor Detail
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DragSourceEvent
public DragSourceEvent(DragSourceContext dsc)
Construct aDragSourceEventgiven a specifiedDragSourceContext. The coordinates for thisDragSourceEventare not specified, sogetLocationwill returnnullfor this event.- Parameters:
dsc- theDragSourceContext- Throws:
IllegalArgumentException- ifdscisnull.- See Also:
getLocation()
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DragSourceEvent
public DragSourceEvent(DragSourceContext dsc, int x, int y)
Construct aDragSourceEventgiven a specifiedDragSourceContext, and coordinates of the cursor location.- Parameters:
dsc- theDragSourceContextx- the horizontal coordinate for the cursor locationy- the vertical coordinate for the cursor location- Throws:
IllegalArgumentException- ifdscisnull.- Since:
- 1.4
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Method Detail
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getDragSourceContext
public DragSourceContext getDragSourceContext()
This method returns theDragSourceContextthat originated the event.- Returns:
- the
DragSourceContextthat originated the event
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getLocation
public Point getLocation()
This method returns aPointindicating the cursor location in screen coordinates at the moment this event occurred, ornullif the cursor location is not specified for this event.- Returns:
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Pointindicating the cursor location ornullif the cursor location is not specified - Since:
- 1.4
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getX
public int getX()
This method returns the horizontal coordinate of the cursor location in screen coordinates at the moment this event occurred, or zero if the cursor location is not specified for this event.- Returns:
- an integer indicating the horizontal coordinate of the cursor location or zero if the cursor location is not specified
- Since:
- 1.4
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getY
public int getY()
This method returns the vertical coordinate of the cursor location in screen coordinates at the moment this event occurred, or zero if the cursor location is not specified for this event.- Returns:
- an integer indicating the vertical coordinate of the cursor location or zero if the cursor location is not specified
- Since:
- 1.4
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