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org.eclipse.gef.dnd
Class TemplateTransferDropTargetListener
java.lang.Object
org.eclipse.gef.dnd.AbstractTransferDropTargetListener
org.eclipse.gef.dnd.TemplateTransferDropTargetListener
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All Implemented Interfaces:
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TransferDropTargetListener
- public class TemplateTransferDropTargetListener
- extends
AbstractTransferDropTargetListener
Performs a native Drop using the
TemplateTransfer. The Drop is performed by
using a
CreateRequest to obtain a Command from the targeted
EditPart.
This class is abstract. Subclasses are responsible for providing the
appropriate Factory object based on the template that is being dragged.
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Since:
- 2.1
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Methods inherited from class org.eclipse.gef.dnd.
AbstractTransferDropTargetListener
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dragEnter,
dragLeave,
dragOperationChanged,
dragOver,
drop,
dropAccept,
eraseTargetFeedback,
getCommand,
getCurrentEvent,
getDropLocation,
getExclusionSet,
getTargetEditPart,
getTargetRequest,
getTransfer,
getViewer,
handleEnteredEditPart,
handleExitingEditPart,
handleHover,
handleHoverStop,
isEnabled,
isEnablementDeterminedByCommand,
setAutoexposeHelper,
setCurrentEvent,
setEnablementDeterminedByCommand,
setTargetEditPart,
setTransfer,
setViewer,
showTargetFeedback,
unload,
updateAutoexposeHelper,
updateTargetEditPart
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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TemplateTransferDropTargetListener
public TemplateTransferDropTargetListener(
EditPartViewer viewer)
- Constructs a listener on the specified viewer.
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Parameters:
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viewer - the EditPartViewer
createTargetRequest
protected
Request createTargetRequest()
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Description copied from class:
AbstractTransferDropTargetListener
- Creates and returns the
Request that will be sent to the targeted
EditPart. Subclasses can override to create specialized requests.
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Overrides:
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createTargetRequest
in class
AbstractTransferDropTargetListener
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Returns:
- the
Request to be used with the target EditPart -
See Also:
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AbstractTransferDropTargetListener.createTargetRequest()
getCreateRequest
protected final
CreateRequest getCreateRequest()
- A helper method that casts the target Request to a CreateRequest.
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Returns:
- CreateRequest
getFactory
protected
CreationFactory getFactory(java.lang.Object template)
- Returns the appropriate Factory object to be used for the specified template. This
Factory is used on the CreateRequest that is sent to the target EditPart.
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Parameters:
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template - the template Object
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Returns:
- a Factory
handleDragOperationChanged
protected void handleDragOperationChanged()
- The purpose of a template is to be copied. Therefore, the drop operation can't be
anything but
DND.DROP_COPY.
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Overrides:
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handleDragOperationChanged
in class
AbstractTransferDropTargetListener
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See Also:
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AbstractTransferDropTargetListener.handleDragOperationChanged()
handleDragOver
protected void handleDragOver()
- The purpose of a template is to be copied. Therefore, the Drop operation is set to
DND.DROP_COPY by default.
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Overrides:
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handleDragOver
in class
AbstractTransferDropTargetListener
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See Also:
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AbstractTransferDropTargetListener.handleDragOver()
handleDrop
protected void handleDrop()
- Overridden to select the created object.
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Overrides:
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handleDrop
in class
AbstractTransferDropTargetListener
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See Also:
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AbstractTransferDropTargetListener.handleDrop()
updateTargetRequest
protected void updateTargetRequest()
- Assumes that the target request is a
CreateRequest.
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Specified by:
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updateTargetRequest
in class
AbstractTransferDropTargetListener
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Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
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