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

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

All Implemented Interfaces:

EditPolicy, RequestConstants

Direct Known Subclasses:

ListItemComponentEditPolicy, ViewComponentEditPolicy, VisibilityComponentEditPolicy

public class ComponentEditPolicy

extends ComponentEditPolicy

Concrete class that extends the GEF's ComponentEditPolicy. This edit policy will return a command in response to delete requests.

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

ComponentEditPolicy()

Method Summary

protected Command	createDeleteCommand(GroupRequest deleteRequest) Returns a delete command to honour the supplied request.
protected Command	createDeleteSemanticCommand(GroupRequest deleteRequest) Return a command to delete the host's semantic elements.
protected Command	createDeleteViewCommand(GroupRequest deleteRequest) Return a command to delete the host's view.
Command	getCommand(Request request)
protected IInsertableEditPart	getInsertableEditPart() getInsertableEditPart Returns the EditPart that can be recipient of the default insert command.
protected Command	getInsertCommand(GroupRequest insertRequest) getInsertCommand Returns an creation command to honour the supplied request.
protected View	getView() Returns the view element to be deleted.
protected boolean	shouldDeleteSemantic() Return true if the host element should delete its semantic element; otherwise false to delete its view.

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

getDeleteCommand, getOrphanCommand

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentEditPolicy

public ComponentEditPolicy()

Method Detail

createDeleteCommand

protected final Command createDeleteCommand(GroupRequest deleteRequest)

Returns a delete command to honour the supplied request. Calls ComponentEditPolicy.createDeleteSemanticCommand(GroupRequest) if ComponentEditPolicy.shouldDeleteSemantic() returns true; othwerise ComponentEditPolicy.createDeleteViewCommand(GroupRequest) is called.

See Also:

ComponentEditPolicy.createDeleteCommand(GroupRequest)

shouldDeleteSemantic

protected boolean shouldDeleteSemantic()

Return true if the host element should delete its semantic element; otherwise false to delete its view. A true return value implies that the host's parent is using a canonical model manager.

Returns:

true or false

createDeleteViewCommand

protected Command createDeleteViewCommand(GroupRequest deleteRequest)

Return a command to delete the host's view. The host's primary view is deleted if GroupRequest.getEditParts() returns a null or empty list; otherwise each editpart's view is deleted.

Parameters:

deleteRequest - the original delete request.

Returns:

Command

createDeleteSemanticCommand

protected Command createDeleteSemanticCommand(GroupRequest deleteRequest)

Return a command to delete the host's semantic elements. This method is called if the host is canonical.

Parameters:

deleteRequest - the original delete request.

Returns:

Command

See Also:

ComponentEditPolicy.shouldDeleteSemantic()

getView

protected View getView()

Returns the view element to be deleted.

Returns:

the host's primary view element.

getInsertableEditPart

protected IInsertableEditPart getInsertableEditPart()

getInsertableEditPart Returns the EditPart that can be recipient of the default insert command.

Returns:

IInsertableEditPart

getInsertCommand

protected Command getInsertCommand(GroupRequest insertRequest)

getInsertCommand Returns an creation command to honour the supplied request.

Parameters:

insertRequest -

Returns:

Command that will create the default sementic element responding to insert.

getCommand

public Command getCommand(Request request)