Overview | Package | Class | Use | Tree | Deprecated | Index | Help
| Java™ Platform Standard Ed. 6
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## java.awt.dnd
Class DragGestureEvent

    java.lang.Object
      java.util.EventObject
          java.awt.dnd.DragGestureEvent

All Implemented Interfaces:
  Serializable

    public class DragGestureEvent

extends EventObject

A `DragGestureEvent` is passed to `DragGestureListener`'s dragGestureRecognized() method when a particular `DragGestureRecognizer` detects that a platform dependent drag initiating gesture has occurred on the `Component` that it is tracking.

See Also:
  `DragGestureRecognizer`, `DragGestureListener`, `DragSource`, Serialized Form

Field Summary

Fields inherited from class java.util.EventObject
`source`

Constructor Summary
`DragGestureEvent(DragGestureRecognizer dgr, int act, Point ori, List<? extends InputEvent> evs)` Construct a `DragGestureEvent` given the `DragGestureRecognizer` firing this event, an `int` representing the user's preferred action, a `Point` indicating the origin of the drag, and a `List` of events that comprise the gesture.

Method Summary
`Component` | `getComponent()` Returns the `Component` associated with this `DragGestureEvent`.
`int` | `getDragAction()` Returns an `int` representing the action selected by the user.
`Point` | `getDragOrigin()` Returns a `Point` in the coordinates of the `Component` over which the drag originated.
`DragSource` | `getDragSource()` Returns the `DragSource`.
`DragGestureRecognizer` | `getSourceAsDragGestureRecognizer()` Returns the source as a `DragGestureRecognizer`.
`InputEvent` | `getTriggerEvent()` Returns the initial event that triggered the gesture.
`Iterator<InputEvent>` | `iterator()` Returns an `Iterator` for the events comprising the gesture.
`void` | `startDrag(Cursor dragCursor, Image dragImage, Point imageOffset, Transferable transferable, DragSourceListener dsl)` Start the drag given the initial `Cursor` to display, a drag `Image`, the offset of the `Image`, the `Transferable` object, and the `DragSourceListener` to use.
`void` | `startDrag(Cursor dragCursor, Transferable transferable)` Starts the drag operation given the `Cursor` for this drag operation and the `Transferable` representing the source data for this drag operation.
`void` | `startDrag(Cursor dragCursor, Transferable transferable, DragSourceListener dsl)` Starts the drag given the initial `Cursor` to display, the `Transferable` object, and the `DragSourceListener` to use.
`Object[]` | `toArray()` Returns an `Object` array of the events comprising the drag gesture.
`Object[]` | `toArray(Object[] array)` Returns an array of the events comprising the drag gesture.

Methods inherited from class java.util.EventObject
`getSource, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### DragGestureEvent

    public DragGestureEvent(DragGestureRecognizer dgr,
                            int act,
                            Point ori,
                            List<? extends InputEvent> evs)

  Construct a `DragGestureEvent` given the `DragGestureRecognizer` firing this event, an `int` representing the user's preferred action, a `Point` indicating the origin of the drag, and a `List` of events that comprise the gesture.

  Parameters:
    `dgr` - The `DragGestureRecognizer` firing this event
    `act` - The the user's preferred action
    `ori` - The origin of the drag
    `evs` - The `List` of events that comprise the gesture

  Throws:
    ``IllegalArgumentException`` - if input parameters are null

Method Detail

### getSourceAsDragGestureRecognizer

    public DragGestureRecognizer getSourceAsDragGestureRecognizer()

  Returns the source as a `DragGestureRecognizer`.

  Returns:
    the source as a `DragGestureRecognizer`

### getComponent

    public Component getComponent()

  Returns the `Component` associated with this `DragGestureEvent`.

  Returns:
    the Component

### getDragSource

    public DragSource getDragSource()

  Returns the `DragSource`.

  Returns:
    the `DragSource`

### getDragOrigin

    public Point getDragOrigin()

  Returns a `Point` in the coordinates of the `Component` over which the drag originated.

  Returns:
    the Point where the drag originated in Component coords.

### iterator

    public Iterator<InputEvent> iterator()

  Returns an `Iterator` for the events comprising the gesture.

  Returns:
    an Iterator for the events comprising the gesture

### toArray

    public Object[] toArray()

  Returns an `Object` array of the events comprising the drag gesture.

  Returns:
    an array of the events comprising the gesture

### toArray

    public Object[] toArray(Object[] array)

  Returns an array of the events comprising the drag gesture.

  Parameters:
    `array` - the array of `EventObject` sub(types)

  Returns:
    an array of the events comprising the gesture

### getDragAction

    public int getDragAction()

  Returns an `int` representing the action selected by the user.

  Returns:
    the action selected by the user

### getTriggerEvent

    public InputEvent getTriggerEvent()

  Returns the initial event that triggered the gesture.

  Returns:
    the first "triggering" event in the sequence of the gesture

### startDrag

    public void startDrag(Cursor dragCursor,
                          Transferable transferable)
                   throws InvalidDnDOperationException

  Starts the drag operation given the `Cursor` for this drag operation and the `Transferable` representing the source data for this drag operation.
  If a `null` `Cursor` is specified no exception will be thrown and default drag cursors will be used instead.
  If a `null` `Transferable` is specified `NullPointerException` will be thrown.

  Parameters:
    `dragCursor` - The `Cursor` for this drag operation
    `transferable` - The `Transferable` representing the source data for this drag operation.
  Throws:
    ``InvalidDnDOperationException`` - if the Drag and Drop system is unable to initiate a drag operation, or if the user attempts to start a drag while an existing drag operation is still executing.
    ``NullPointerException`` - if the `Transferable` is `null`.
    `InvalidDnDOperationException`
  Since:
    1.4

### startDrag

    public void startDrag(Cursor dragCursor,
                          Transferable transferable,
                          DragSourceListener dsl)
                   throws InvalidDnDOperationException

  Starts the drag given the initial `Cursor` to display, the `Transferable` object, and the `DragSourceListener` to use.

  Parameters:
    `dragCursor` - The initial drag Cursor
    `transferable` - The source's Transferable
    `dsl` - The source's DragSourceListener

  Throws:
    ``InvalidDnDOperationException`` - if the Drag and Drop system is unable to initiate a drag operation, or if the user attempts to start a drag while an existing drag operation is still executing.
    `InvalidDnDOperationException`

### startDrag

    public void startDrag(Cursor dragCursor,
                          Image dragImage,
                          Point imageOffset,
                          Transferable transferable,
                          DragSourceListener dsl)
                   throws InvalidDnDOperationException

  Start the drag given the initial `Cursor` to display, a drag `Image`, the offset of the `Image`, the `Transferable` object, and the `DragSourceListener` to use.

  Parameters:
    `dragCursor` - The initial drag Cursor
    `dragImage` - The source's dragImage
    `imageOffset` - The dragImage's offset
    `transferable` - The source's Transferable
    `dsl` - The source's DragSourceListener

  Throws:
    ``InvalidDnDOperationException`` - if the Drag and Drop system is unable to initiate a drag operation, or if the user attempts to start a drag while an existing drag operation is still executing.
    `InvalidDnDOperationException`

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
| Java™ Platform Standard Ed. 6
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

Submit a bug or feature
For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.