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package org.eclipse.gef.examples.logicdesigner.dnd; |
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import org.eclipse.swt.dnd.DND; |
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import org.eclipse.ui.part.ResourceTransfer; |
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import org.eclipse.gef.EditPartViewer; |
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import org.eclipse.gef.Request; |
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import org.eclipse.gef.dnd.AbstractTransferDropTargetListener; |
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import org.eclipse.gef.requests.CreateRequest; |
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import org.eclipse.gef.requests.SimpleFactory; |
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import org.eclipse.gef.examples.logicdesigner.model.LogicLabel; |
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public class ResourceTransferDropTargetListener extends |
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AbstractTransferDropTargetListener { |
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public ResourceTransferDropTargetListener(EditPartViewer viewer) { |
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super(viewer, ResourceTransfer.getInstance()); |
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} |
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protected Request createTargetRequest() { |
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CreateRequest request = new CreateRequest(); |
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request.setFactory(new SimpleFactory((Class) (Object) LogicLabel.class)); |
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return request; |
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} |
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protected final CreateRequest getCreateRequest() { |
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return ((CreateRequest) getTargetRequest()); |
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} |
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protected void handleDragOperationChanged() { |
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getCurrentEvent().detail = DND.DROP_COPY; |
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super.handleDragOperationChanged(); |
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} |
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protected void handleDragOver() { |
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getCurrentEvent().detail = DND.DROP_COPY; |
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getCurrentEvent().feedback = DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND; |
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super.handleDragOver(); |
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} |
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protected void updateTargetRequest() { |
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CreateRequest request = getCreateRequest(); |
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request.setLocation(getDropLocation()); |
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} |
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} |
