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

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

All Implemented Interfaces:

EditPolicy, RequestConstants

public abstract class NotationConnectionReorientEditPolicy

extends AbstractEditPolicy

By default, reorienting of connections that do not have any semantic meaning (e.g. note attachments) will be supported between any two nodes by a GraphicalNodeEditPolicy. The intention of this editpolicy is to provide a place where this can be disabled. To disable reorienting of a connection between two nodes, return an unexecutable command. For an example implementation, see NoteAttachmentReorientEditPolicy.

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

NotationConnectionReorientEditPolicy()

Method Summary

Command	getCommand(Request request)
protected Command	getReorientConnectionSourceCommand(ReconnectRequest request) Subclasses may override to return an unexecutable command if reorienting the connection to the new source should be disabled.
protected Command	getReorientConnectionTargetCommand(ReconnectRequest request) Subclasses may override to return an unexecutable command if reorienting the connection to the new target should be disabled.
boolean	understandsRequest(Request request)

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

NotationConnectionReorientEditPolicy

public NotationConnectionReorientEditPolicy()

Method Detail

getCommand

public Command getCommand(Request request)

getReorientConnectionSourceCommand

protected Command getReorientConnectionSourceCommand(ReconnectRequest request)

Subclasses may override to return an unexecutable command if reorienting the connection to the new source should be disabled. Otherwise, this command should return null so as not to interfere.

Parameters:

request - the request to change the source of a connection

Returns:

an unexecutable command if this gesture should be disabled; null otherwise

getReorientConnectionTargetCommand

protected Command getReorientConnectionTargetCommand(ReconnectRequest request)

Subclasses may override to return an unexecutable command if reorienting the connection to the new target should be disabled. Otherwise, this command should return null so as not to interfere.

Parameters:

request - the request to change the target of a connection

Returns:

an unexecutable command if this gesture should be disabled; null otherwise

understandsRequest

public boolean understandsRequest(Request request)