org.eclipse.gef.editpolicies
Class GraphicalNodeEditPolicy

java.lang.Object
  |
  +--org.eclipse.gef.editpolicies.AbstractEditPolicy
        |
        +--org.eclipse.gef.editpolicies.GraphicalEditPolicy
              |
              +--org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy

All Implemented Interfaces:

EditPolicy, RequestConstants

Direct Known Subclasses:

ConnectionNodeEditPolicy

public abstract class GraphicalNodeEditPolicy

extends GraphicalEditPolicy

Field Summary

protected Connection	connectionFeedback
protected FeedbackHelper	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_CHILD, REQ_ALIGN_CHILDREN, REQ_ANCESTOR_DELETED, REQ_CONNECTION_END, REQ_CONNECTION_START, REQ_CREATE, REQ_CREATE_BENDPOINT, REQ_DELETE, REQ_DELETE_BENDPOINT, REQ_DELETE_DEPENDANT, REQ_DIRECT_EDIT, REQ_MOVE, REQ_MOVE_BENDPOINT, REQ_MOVE_CHILD, REQ_MOVE_CHILDREN, REQ_ORPHAN, REQ_ORPHAN_CHILDREN, REQ_RECONNECT_END, REQ_RECONNECT_SOURCE, REQ_RECONNECT_START, REQ_RECONNECT_TARGET, REQ_RESIZE, REQ_RESIZE_CHILD, REQ_RESIZE_CHILDREN, REQ_SELECTION, REQ_SELECTION_HOVER, REQ_SOURCE_DELETED, REQ_TARGET_DELETED

Constructor Summary

GraphicalNodeEditPolicy()

Method Summary

protected Connection	createDummyConnection(Request req)
protected void	eraseCreationFeedback(CreateConnectionRequest request)
void	eraseSourceFeedback(Request request) Erase feedback indicating that the receiver object is being dragged.
protected void	eraseTargetConnectionFeedback(DropRequest request) Erase feedback indicating that the edit part is no longer the target of a drag.
void	eraseTargetFeedback(Request request) Erases target feedback based on the given request.
Command	getCommand(Request request) Get the command that performs an operation of the type indicated by @commandString on the receiver.
protected abstract Command	getConnectionCompleteCommand(CreateConnectionRequest request)
protected abstract Command	getConnectionCreateCommand(CreateConnectionRequest request)
protected FeedbackHelper	getFeedbackHelper(CreateConnectionRequest request)
protected abstract Command	getReconnectSourceCommand(ReconnectRequest request)
protected abstract Command	getReconnectTargetCommand(ReconnectRequest request)
protected ConnectionAnchor	getSourceConnectionAnchor(CreateConnectionRequest request)
protected ConnectionAnchor	getTargetConnectionAnchor(CreateConnectionRequest request)
EditPart	getTargetEditPart(Request request) Returns the host EditPart if the EditPolicy works with the given request type, otherwise return null.
protected void	showCreationFeedback(CreateConnectionRequest request)
void	showSourceFeedback(Request request) Shows or updates source feedback if the receiver works with the request type.
protected void	showTargetConnectionFeedback(DropRequest request)
void	showTargetFeedback(Request request) Shows or updates target feedback if the receiver works with the request type.

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

addFeedback, getHostFigure, getLayer, removeFeedback

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

activate, deactivate, debugFeedback, getHost, initialize, setHost, toString, understandsRequest

Methods inherited from class java.lang.Object

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

Field Detail

feedbackHelper

protected FeedbackHelper feedbackHelper

connectionFeedback

protected Connection connectionFeedback

Constructor Detail

GraphicalNodeEditPolicy

public GraphicalNodeEditPolicy()

Method Detail

createDummyConnection

protected Connection createDummyConnection(Request req)

eraseCreationFeedback

protected void eraseCreationFeedback(CreateConnectionRequest request)

eraseSourceFeedback

public void eraseSourceFeedback(Request request)

Erase feedback indicating that the receiver object is being dragged. This method is called when a drag is completed or cancelled on the receiver object.

Overrides:

eraseSourceFeedback in class AbstractEditPolicy

Parameters:

dragTracker - org.eclipse.gef.tools.DragTracker The drag tracker of the tool performing the drag.

eraseTargetConnectionFeedback

protected void eraseTargetConnectionFeedback(DropRequest request)

Erase feedback indicating that the edit part is no longer the target of a drag.

eraseTargetFeedback

public void eraseTargetFeedback(Request request)

Description copied from interface: EditPolicy

Erases target feedback based on the given request. Does nothing if the EditPolicy does not apply to the given request.

Overrides:

eraseTargetFeedback in class AbstractEditPolicy

getCommand

public Command getCommand(Request request)

Get the command that performs an operation of the type indicated by @commandString on the receiver. Data needed to create the command is contained in @tool Possible values for the commandString depend on the tool. Default tools send "create" and "move".

Overrides:

getCommand in class AbstractEditPolicy

Parameters:

commandString - java.lang.String The type of command to create

commandData - org.eclipse.gef.CommandData Data needed to create the command

Returns:

org.eclipse.gef.commands.Command The command that performs the operation

getConnectionCompleteCommand

protected abstract Command getConnectionCompleteCommand(CreateConnectionRequest request)

getConnectionCreateCommand

protected abstract Command getConnectionCreateCommand(CreateConnectionRequest request)

getFeedbackHelper

protected FeedbackHelper getFeedbackHelper(CreateConnectionRequest request)

getReconnectTargetCommand

protected abstract Command getReconnectTargetCommand(ReconnectRequest request)

getReconnectSourceCommand

protected abstract Command getReconnectSourceCommand(ReconnectRequest request)

getSourceConnectionAnchor

protected ConnectionAnchor getSourceConnectionAnchor(CreateConnectionRequest request)

getTargetConnectionAnchor

protected ConnectionAnchor getTargetConnectionAnchor(CreateConnectionRequest request)

getTargetEditPart

public EditPart getTargetEditPart(Request request)

Description copied from interface: EditPolicy

Returns the host EditPart if the EditPolicy works with the given request type, otherwise return null. For all practical uses, this method has "boolean" behavior. It is possible, although rarely useful, to return an EditPart other than the host.

Overrides:

getTargetEditPart in class AbstractEditPolicy

showCreationFeedback

protected void showCreationFeedback(CreateConnectionRequest request)

showSourceFeedback

public void showSourceFeedback(Request request)

Description copied from interface: EditPolicy

Shows or updates source feedback if the receiver works with the request type. This method may be called repeatedly for the purpose of updating feedback based on changes to the request object. Does nothing if the EditPolicy does not recognize the given request.

Overrides:

showSourceFeedback in class AbstractEditPolicy

showTargetConnectionFeedback

protected void showTargetConnectionFeedback(DropRequest request)

showTargetFeedback

public void showTargetFeedback(Request request)

Description copied from interface: EditPolicy

Shows or updates target feedback if the receiver works with the request type. This method may be called repeatedly for the purpose of updating feedback based on changes to the request object. Does nothing if the EditPolicy does not recognize the given request.

Overrides:

showTargetFeedback in class AbstractEditPolicy