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

java.lang.Object
  org.eclipse.gef.editpolicies.AbstractEditPolicy
      org.eclipse.gmf.runtime.diagram.ui.editpolicies.ConnectionLabelsEditPolicy

All Implemented Interfaces:

EditPolicy, RequestConstants

public class ConnectionLabelsEditPolicy

extends AbstractEditPolicy

EditPolicy which toggles the visibility of the labels associated with the host.

Field Summary

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

ConnectionLabelsEditPolicy()

Method Summary

Command	getCommand(Request request) Returns a Command which changes the visibility for the labels owned by the host.
protected org.eclipse.emf.transaction.TransactionalEditingDomain	getEditingDomain()
EditPart	getTargetEditPart(Request request) If the request returns an executable command the host is returned, otherwise null.
protected boolean	isCompartment(Node node) determines if the passed view is a compartment view or not the default provided implementation is just an educated/generic guss clients can override this method to provide more specific response
protected boolean	isLabelView(EditPart containerEditPart, View parentView, View view) determines if the passed view is a label view or not the default provided implementation is just an educated/generic guss clients can override this method to provide more specific response
boolean	understandsRequest(Request request) Understands the RequestConstants.REQ_TOGGLE_CONNECTION_LABELS request.

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

activate, deactivate, debugFeedback, eraseSourceFeedback, eraseTargetFeedback, getHost, setHost, showSourceFeedback, showTargetFeedback, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectionLabelsEditPolicy

public ConnectionLabelsEditPolicy()

Method Detail

understandsRequest

public boolean understandsRequest(Request request)

Understands the RequestConstants.REQ_TOGGLE_CONNECTION_LABELS request.

Parameters:

request - the request

Returns:

true if RequestConstants.REQ_TOGGLE_CONNECTION_LABELS.equals(request.getType()) and false otherwise.

getCommand

public Command getCommand(Request request)

Returns a Command which changes the visibility for the labels owned by the host.

Parameters:

request - the request

Returns:

the property change commands

getEditingDomain

protected org.eclipse.emf.transaction.TransactionalEditingDomain getEditingDomain()

isLabelView

protected boolean isLabelView(EditPart containerEditPart,
                              View parentView,
                              View view)

determines if the passed view is a label view or not the default provided implementation is just an educated/generic guss clients can override this method to provide more specific response

Returns:

isCompartment

protected boolean isCompartment(Node node)

determines if the passed view is a compartment view or not the default provided implementation is just an educated/generic guss clients can override this method to provide more specific response

Parameters:

node -

Returns:

getTargetEditPart

public EditPart getTargetEditPart(Request request)

If the request returns an executable command the host is returned, otherwise null.

Parameters:

request -

Returns:

getHost() if the request is supported or null.