Runtime

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

java.lang.Object
  extended byorg.eclipse.gef.editpolicies.AbstractEditPolicy
      extended byorg.eclipse.gef.editpolicies.GraphicalEditPolicy
          extended byorg.eclipse.gef.editpolicies.GraphicalNodeEditPolicy
              extended byorg.eclipse.gmf.runtime.diagram.ui.editpolicies.GraphicalNodeEditPolicy
                  extended byorg.eclipse.gmf.runtime.diagram.ui.editpolicies.TreeGraphicalNodeEditPolicy
All Implemented Interfaces:
EditPolicy, RequestConstants

public class TreeGraphicalNodeEditPolicy
extends GraphicalNodeEditPolicy

This class overrides the default GraphicalNodeEditPolicy to allow for a redirection of the target editpart when connecting. Specifically it used for connections of the same semantic type and will route them using the tree routing. The common example is with generalizations. It is typical for an inheritance hierarchy to be viewed as a tree.


Nested Class Summary
 
Nested classes inherited from class org.eclipse.gmf.runtime.diagram.ui.editpolicies.GraphicalNodeEditPolicy
GraphicalNodeEditPolicy.PromptAndCreateConnectionCommand
 
Field Summary
 
Fields inherited from class org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy
connectionFeedback, feedbackHelper
 
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
TreeGraphicalNodeEditPolicy()
           
 
Method Summary
protected  Command getConnectionCompleteCommand(CreateConnectionRequest request)
          Returns a command that will create the connection.
protected  INodeEditPart getConnectionCompleteEditPart(Request request)
          getConnectionCompleteEditPart This method is used when the connection is verified and made complete to retrieve the final connecting editpart to be used in the connection creation.
protected  ConnectionAnchor getConnectionTargetAnchor(Request request)
          getConnectionTargetAnchor Method used during reconnection to retrieve the appropriate target anchor based on a request.
 
Methods inherited from class org.eclipse.gmf.runtime.diagram.ui.editpolicies.GraphicalNodeEditPolicy
createDummyConnection, getCommand, getConnectableEditPart, getConnectionAndRelationshipCompleteCommand, getConnectionAndRelationshipCreateCommand, getConnectionCompleteCommand, getConnectionCreateCommand, getConnectionMenuContent, getDummyConnectionRouter, getPromptAndCreateConnectionCommand, getReconnectSourceCommand, getReconnectTargetCommand, getReversedUnspecifiedConnectionCompleteCommand, getRoutingAdjustment, getSemanticHint, getSourceConnectionAnchor, getTargetConnectionAnchor, getUnspecifiedConnectionCompleteCommand, getView, getViewAdapter, setViewAdapter
 
Methods inherited from class org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy
deactivate, eraseCreationFeedback, eraseSourceFeedback, eraseTargetConnectionFeedback, eraseTargetFeedback, getFeedbackHelper, getTargetEditPart, showCreationFeedback, showSourceFeedback, showTargetConnectionFeedback, showTargetFeedback
 
Methods inherited from class org.eclipse.gef.editpolicies.GraphicalEditPolicy
addFeedback, getFeedbackLayer, getHostFigure, getLayer, removeFeedback
 
Methods inherited from class org.eclipse.gef.editpolicies.AbstractEditPolicy
activate, debugFeedback, getHost, setHost, toString, understandsRequest
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

TreeGraphicalNodeEditPolicy

public TreeGraphicalNodeEditPolicy()
Method Detail

getConnectionCompleteEditPart

protected INodeEditPart getConnectionCompleteEditPart(Request request)
Description copied from class: GraphicalNodeEditPolicy
getConnectionCompleteEditPart This method is used when the connection is verified and made complete to retrieve the final connecting editpart to be used in the connection creation. This is by default the "host" edit part which is what is connected to by the user feedback. Subclassing edit-policies may wish to redirect the connection to a different edit-part depending on the gesture. i.e. the tree-view for generalizations will redirect the connection to the target of the host.

Overrides:
getConnectionCompleteEditPart in class GraphicalNodeEditPolicy
Parameters:
request - Request giving some information about the user gesture.
Returns:
INodeEditPart which will be the target connection.

getConnectionTargetAnchor

protected ConnectionAnchor getConnectionTargetAnchor(Request request)
Description copied from class: GraphicalNodeEditPolicy
getConnectionTargetAnchor Method used during reconnection to retrieve the appropriate target anchor based on a request.

Overrides:
getConnectionTargetAnchor in class GraphicalNodeEditPolicy
Parameters:
request - Request giving some information about the user gesture.
Returns:
ConnectionAnchor the connections target end will connect to.

getConnectionCompleteCommand

protected Command getConnectionCompleteCommand(CreateConnectionRequest request)
Description copied from class: GraphicalNodeEditPolicy
Returns a command that will create the connection. If you must override this method, you should call super.

Overrides:
getConnectionCompleteCommand in class GraphicalNodeEditPolicy
See Also:
GraphicalNodeEditPolicy.getConnectionCompleteCommand(org.eclipse.gef.requests.CreateConnectionRequest)

Runtime

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