org.eclipse.gmf.runtime.diagram.ui.editpolicies
Class NonResizableLabelEditPolicy

java.lang.Object
  org.eclipse.gef.editpolicies.AbstractEditPolicy
      org.eclipse.gef.editpolicies.GraphicalEditPolicy
          org.eclipse.gef.editpolicies.SelectionEditPolicy
              org.eclipse.gef.editpolicies.SelectionHandlesEditPolicy
                  org.eclipse.gef.editpolicies.NonResizableEditPolicy
                      org.eclipse.gmf.runtime.diagram.ui.editpolicies.NonResizableEditPolicyEx
                          org.eclipse.gmf.runtime.diagram.ui.editpolicies.NonResizableLabelEditPolicy

All Implemented Interfaces:

EditPolicy, IAdaptable, RequestConstants

public class NonResizableLabelEditPolicy

extends NonResizableEditPolicyEx

EditPolicy which moves a label relative to it parent.

Field Summary

Fields inherited from class org.eclipse.gef.editpolicies.SelectionHandlesEditPolicy

handles

Fields inherited from interface org.eclipse.gef.EditPolicy

COMPONENT_ROLE, CONNECTION_BENDPOINTS_ROLE, CONNECTION_ENDPOINTS_ROLE, CONNECTION_ROLE, CONTAINER_ROLE, DIRECT_EDIT_ROLE, GRAPHICAL_NODE_ROLE, LAYOUT_ROLE, NODE_ROLE, PRIMARY_DRAG_ROLE, SELECTION_FEEDBACK_ROLE, TREE_CONTAINER_ROLE

Fields inherited from interface org.eclipse.gef.RequestConstants

REQ_ADD, REQ_ALIGN, REQ_ALIGN_CHILDREN, REQ_CLONE, REQ_CONNECTION_END, REQ_CONNECTION_START, REQ_CREATE, REQ_CREATE_BENDPOINT, REQ_DELETE, REQ_DELETE_DEPENDANT, REQ_DIRECT_EDIT, REQ_MOVE, REQ_MOVE_BENDPOINT, REQ_MOVE_CHILDREN, REQ_OPEN, REQ_ORPHAN, REQ_ORPHAN_CHILDREN, REQ_RECONNECT_SOURCE, REQ_RECONNECT_TARGET, REQ_RESIZE, REQ_RESIZE_CHILDREN, REQ_SELECTION, REQ_SELECTION_HOVER

Constructor Summary

NonResizableLabelEditPolicy()

Method Summary

protected IFigure	createDragSourceFeedbackFigure()
protected DragTracker	createSelectionHandleDragTracker() Overridden to use a customized drag tracker for the handles.
protected void	eraseChangeBoundsFeedback(ChangeBoundsRequest request)
protected Command	getMoveCommand(ChangeBoundsRequest request)
EditPart	getTargetEditPart(Request request)
protected void	showChangeBoundsFeedback(ChangeBoundsRequest request) Shows or updates feedback for a change bounds request.
boolean	understandsRequest(Request request)

Methods inherited from class org.eclipse.gmf.runtime.diagram.ui.editpolicies.NonResizableEditPolicyEx

addSelectionHandles, eraseSourceFeedback, replaceHandleDragEditPartsTracker, showSourceFeedback

Methods inherited from class org.eclipse.gef.editpolicies.NonResizableEditPolicy

createSelectionHandles, deactivate, getAlignCommand, getCommand, getDragSourceFeedbackFigure, getInitialFeedbackBounds, getOrphanCommand, hideFocus, isDragAllowed, setDragAllowed, showFocus

Methods inherited from class org.eclipse.gef.editpolicies.SelectionHandlesEditPolicy

getAdapter, hideSelection, removeSelectionHandles, showSelection

Methods inherited from class org.eclipse.gef.editpolicies.SelectionEditPolicy

activate, addSelectionListener, removeSelectionListener, setFocus, setSelectedState, showPrimarySelection

Methods inherited from class org.eclipse.gef.editpolicies.GraphicalEditPolicy

addFeedback, getFeedbackLayer, getHostFigure, getLayer, removeFeedback

Methods inherited from class org.eclipse.gef.editpolicies.AbstractEditPolicy

debugFeedback, eraseTargetFeedback, getHost, setHost, showTargetFeedback, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NonResizableLabelEditPolicy

public NonResizableLabelEditPolicy()

Method Detail

eraseChangeBoundsFeedback

protected void eraseChangeBoundsFeedback(ChangeBoundsRequest request)

createDragSourceFeedbackFigure

protected IFigure createDragSourceFeedbackFigure()

showChangeBoundsFeedback

protected void showChangeBoundsFeedback(ChangeBoundsRequest request)

Description copied from class: NonResizableEditPolicyEx

Shows or updates feedback for a change bounds request. This method had been overriden to make sure that the feed back never go below the min size also it make sure it never exceed the max size

Overrides:

showChangeBoundsFeedback in class NonResizableEditPolicyEx

Parameters:

request - the request

getMoveCommand

protected Command getMoveCommand(ChangeBoundsRequest request)

createSelectionHandleDragTracker

protected DragTracker createSelectionHandleDragTracker()

Overridden to use a customized drag tracker for the handles. The isMove() method of the drag tracker needs to be overridden as the parent of the label and connection will not be the same as the target editpart, instead it returns true always since labels can only be moved and not resized.

Returns:

a drag tracker

getTargetEditPart

public EditPart getTargetEditPart(Request request)

Specified by:

getTargetEditPart in interface EditPolicy

Overrides:

getTargetEditPart in class NonResizableEditPolicyEx

See Also:

EditPolicy.getTargetEditPart(org.eclipse.gef.Request)

understandsRequest

public boolean understandsRequest(Request request)