| |
org.eclipse.gef.editpolicies
Class ComponentEditPolicy
java.lang.Object
org.eclipse.gef.editpolicies.AbstractEditPolicy
org.eclipse.gef.editpolicies.ComponentEditPolicy
-
All Implemented Interfaces:
-
EditPolicy,
RequestConstants
-
Direct Known Subclasses:
-
RootComponentEditPolicy
- public abstract class ComponentEditPolicy
- extends
AbstractEditPolicy
A model-based EditPolicy for components within a container. A model-based
EditPolicy only knows about the host's model and the basic operations it supports. A
component is anything that is inside a container. By default,
ComponentEditPolicy understands being DELETEd from its container, and being ORPHANed
from its container. Subclasses can add support to handle additional behavior specific
to the model.
ORPHAN is forwarded to the parent EditPart for it to handle.
DELETE is also forwarded to the parent EditPart, but subclasses may also
contribute to the delete by overriding
createDeleteCommand(GroupRequest).
This EditPolicy is not a
GraphicalEditPolicy, and
should not be used to show feedback or interact with the host's visuals in any way.
This EditPolicy should not be used with
ConnectionEditPart.
Connections do not really have a parent; use
ConnectionEditPolicy.
-
Since:
- 2.0
|
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
|
|
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
|
ComponentEditPolicy
public ComponentEditPolicy()
createDeleteCommand
protected
Command createDeleteCommand(
GroupRequest deleteRequest)
- Override to contribute to the component's being deleted.
-
-
Parameters:
-
deleteRequest - the DeleteRequest
-
Returns:
- Command
null or a contribution to the delete
getCommand
public
Command getCommand(
Request request)
- Factors the incoming Request into ORPHANs and DELETEs.
-
-
Specified by:
-
getCommand
in interface
EditPolicy
-
Overrides:
-
getCommand
in class
AbstractEditPolicy
-
-
See Also:
-
EditPolicy.getCommand(Request)
getDeleteCommand
protected
Command getDeleteCommand(
GroupRequest request)
- Calls and returns
createDeleteCommand(GroupRequest). This method is here for
historical reasons and used to perform additional function.
-
-
Parameters:
-
request - the DeleteRequest
-
Returns:
- a delete command
getOrphanCommand
protected
Command getOrphanCommand()
- Returns the command contribution for orphaning this component from its container. By
default, ORPHAN is redispatched to the host's parent as an ORPHAN_CHILDREN Request. The
parents contribution is then returned.
-
-
Returns:
- the contribution obtained from the host's parent.
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
|
|
