org.eclipse.gmf.runtime.diagram.ui.editparts
Class GraphicalEditPart

java.lang.Object
  org.eclipse.gef.editparts.AbstractEditPart
      org.eclipse.gef.editparts.AbstractGraphicalEditPart
          org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart

All Implemented Interfaces:

EditPart, GraphicalEditPart, IAdaptable, IAdaptableSelection, org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart, IGraphicalEditPart, NotificationListener, RequestConstants

Direct Known Subclasses:

CompartmentEditPart, DiagramEditPart, TopGraphicEditPart

public abstract class GraphicalEditPart

extends AbstractGraphicalEditPart

implements IGraphicalEditPart, IAdaptableSelection, NotificationListener

Nested Class Summary

Nested classes inherited from class org.eclipse.gef.editparts.AbstractGraphicalEditPart

AbstractGraphicalEditPart.AccessibleGraphicalEditPart, AbstractGraphicalEditPart.DefaultAccessibleAnchorProvider

Nested classes inherited from class org.eclipse.gef.editparts.AbstractEditPart

AbstractEditPart.EditPolicyIterator

Field Summary

protected AccessibleEditPart	accessibleEP Used for accessibility.
protected java.lang.String	elementGuid Used for registering and unregistering the edit part

Fields inherited from class org.eclipse.gef.editparts.AbstractGraphicalEditPart

figure, sourceConnections, targetConnections

Fields inherited from class org.eclipse.gef.editparts.AbstractEditPart

children, FLAG_ACTIVE, FLAG_FOCUS, MAX_FLAG

Fields inherited from interface org.eclipse.gef.EditPart

SELECTED, SELECTED_NONE, SELECTED_PRIMARY

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

GraphicalEditPart(EObject model)
Create an instance.

Method Summary

void	activate() Registers this editpart to recieve notation and semantic events.
protected void	addChild(EditPart child, int index)
protected void	addListenerFilter(java.lang.String filterId, NotificationListener listener, EObject element) Adds a listener filter by adding the given listener to a passed notifier
protected void	addListenerFilter(java.lang.String filterId, NotificationListener listener, EObject element, EStructuralFeature feature) Adds a listener filter by adding the given listener to a passed notifier
protected void	addNotationalListeners() This method adds all listeners to the notational world (views, figures, editpart...etc) Override this method to add more notational listeners down the hierarchy
protected void	addSemanticListeners() This method adds all listeners to the semantic element behind this EditPart Override this method to add more semantic listeners down the hierarchy This method is called only if the semantic element is resolvable
protected java.lang.Object	basicGetModel() Access the model member variable
protected ConnectionEditPart	createConnection(java.lang.Object connectionView) Creates a connection editpart.
protected void	createDefaultEditPolicies() Should be overridden to install editpolicies programmatically.
protected void	createEditPolicies() Overridden to support editpolicies installed programmatically and via the EditPolicyService.
protected IFigure	createFigure()
void	deactivate()
void	disableEditMode() Disables edit mode of the EditPart.
void	enableEditMode() Enables edit mode of the EditPart.
void	eraseSourceFeedback(Request request)
void	eraseTargetFeedback(Request request)
protected void	executeCommand(Command command) executes the passed Command
EditPart	findEditPart(EditPart epBegin, EObject theElement) Finds an editpart given a starting editpart and an EObject
protected AccessibleEditPart	getAccessibleEditPart()
java.lang.Object	getAdapter(java.lang.Class key) Adds the ability to adapt to the edit part's view class.
IGraphicalEditPart	getChildBySemanticHint(java.lang.String semanticHint) Method getChildBySemanticHint.
IGraphicalEditPart	getChildBySemanticHintOnPrimaryView(java.lang.String semanticHint) Utility method to get the primary view and then query for a child based on the semantic hint
View	getChildViewBySemanticHint(java.lang.String semanticHint) Method getChildViewBySemanticHint.
Command	getCommand(Request _request) Return a command for the supplied request.
protected IFigure	getContentPaneFor(IGraphicalEditPart editPart) gets the content pane for the supplied editpart.
IDiagramEditDomain	getDiagramEditDomain() Return the editpart's diagram edit domain.
PreferencesHint	getDiagramPreferencesHint() Gets the preferences hint that is to be used to find the appropriate preference store from which to retrieve diagram preference values.
protected Diagram	getDiagramView() Convenience method returning the editpart's parimary view.
DragTracker	getDragTracker(Request request)
protected EditDomain	getEditDomain() gets this editpart's edit domain.
org.eclipse.emf.transaction.TransactionalEditingDomain	getEditingDomain() Derives my editing domain from my model or my diagram element.
protected org.eclipse.gmf.runtime.draw2d.ui.mapmode.IMapMode	getMapMode()
java.lang.Object	getModel() Returns tis edit part's model; the returned values is not granteed to be View, the return value could be null or any Object depending on the edit part implementation
protected java.util.List	getModelChildren() Return this editpart's view (model) children.
View	getNotationView() Return the editpart's associated Notation View.
java.lang.Object	getPreferredValue(EStructuralFeature feature) Retrieves the preferred value for the supplied feature.
EditPart	getPrimaryChildEditPart() this method will return the primary child EditPart inside this edit part
View	getPrimaryView() Convenience method returning the editpart's parimary view.
protected ResourceManager	getResourceManager() Gets the resource manager to remember the resources allocated for this graphical viewer.
RootEditPart	getRoot()
java.lang.Object	getStructuralFeatureValue(EStructuralFeature feature) Convenience method to retreive the value for the supplied value from the editpart's associated view element.
TopGraphicEditPart	getTopGraphicEditPart() Walks up the editpart hierarchy to find and return the TopGraphicEditPart instance.
protected void	handleMajorSemanticChange() Handles the case where the semantic reference has changed.
protected void	handleNotificationEvent(Notification event) Handles the property changed event.
boolean	hasNotationView() indicates if this edit part's model is a view or not
boolean	isCanonical()
boolean	isEditModeEnabled() Returns true if the EditPart is editable.
boolean	isSelectable() Return true if the editpart's figure is visible; false otherwise.
void	notifyChanged(Notification notification) Will be called when a Notification event gets sent from the DiagramEventBroker after the transaction has been closed.
protected void	performDirectEditRequest(Request request) Performs a direct edit request (usually by showing some type of editor)
void	performRequest(Request request) Perform a request by executing a command from the target editpart of the request For the Direct_Edit request, we need to show up an editor first
protected void	reactivateSemanticModel() Method reactivateSemanticModel.
void	refresh() Invoke the editpart's refresh mechanism.
protected void	refreshBackgroundColor() Refresh the editpart's figure background colour.
protected void	refreshChild(GraphicalEditPart child) Refreshes a child editpart by removing it and refreshing children
protected void	refreshFont() Refresh the editpart's figure font.
protected void	refreshFontColor() Refresh the editpart's figure font colour.
protected void	refreshForegroundColor() Refresh the editpart's figure foreground colour.
protected void	refreshSourceConnection(ConnectionEditPart conn) Refreshes a source connection editpart by removing it and refreshing source connections
protected void	refreshTargetConnection(ConnectionEditPart conn) Refreshes a target connection editpart by removing it and refreshing target connections
protected void	refreshVisibility() Refresh the editpart's figure visibility.
protected void	refreshVisuals() Refresh the editpart's figure visual properties.
protected void	registerModel() Adds a [ref, editpart] mapping to the EditPartForElement map.
protected void	removeListenerFilter(java.lang.String filterId) Removes a listener previously added with the given id
protected void	removeNotationalListeners() This method removes all listeners to the notational world (views, figures, editpart...etc) Override this method to remove notational listeners down the hierarchy
void	removeNotify()
protected void	removeSemanticListeners() This method removes all listeners to the semantic element behind this EditPart Override this method to remove semantic listeners down the hierarchy
EObject	resolveSemanticElement() gets the semantic element associated to this editpart.
protected void	setBackgroundColor(Color color) sets the back ground color of this edit part
protected void	setFont(FontData fontData) Sets the font to the label.
protected void	setFontColor(Color color) sets the font color
protected void	setForegroundColor(Color color) sets the fore ground color of this edit part's figure
void	setModel(java.lang.Object model)
void	setStructuralFeatureValue(EStructuralFeature feature, java.lang.Object value) Sets the passed feature if possible on this editpart's view to the passed value.
protected void	setVisibility(boolean vis) sets the visibility of this edit part
void	showSourceFeedback(Request request)
void	showTargetFeedback(Request request)
Command	transactionAboutToCommit(Notification notification)
protected void	unregisterModel() Remove this editpart from the EditPartForElement map.

Methods inherited from class org.eclipse.gef.editparts.AbstractGraphicalEditPart

addChildVisual, addNodeListener, addNotify, addSourceConnection, addTargetConnection, createOrFindConnection, fireRemovingSourceConnection, fireRemovingTargetConnection, fireSourceConnectionAdded, fireTargetConnectionAdded, getContentPane, getFigure, getLayer, getModelSourceConnections, getModelTargetConnections, getSourceConnections, getTargetConnections, primAddSourceConnection, primAddTargetConnection, primRemoveSourceConnection, primRemoveTargetConnection, refreshSourceConnections, refreshTargetConnections, registerVisuals, removeChildVisual, removeNodeListener, removeSourceConnection, removeTargetConnection, reorderChild, reorderSourceConnection, reorderTargetConnection, setFigure, setLayoutConstraint, unregisterVisuals

Methods inherited from class org.eclipse.gef.editparts.AbstractEditPart

activateEditPolicies, addEditPartListener, createChild, deactivateEditPolicies, debug, debugFeedback, fireActivated, fireChildAdded, fireDeactivated, fireRemovingChild, fireSelectionChanged, getChildren, getEditPolicy, getEditPolicyIterator, getEventListeners, getFlag, getParent, getSelected, getTargetEditPart, getViewer, hasFocus, installEditPolicy, isActive, refreshChildren, register, registerAccessibility, removeChild, removeEditPartListener, removeEditPolicy, setFlag, setFocus, setParent, setSelected, toString, understandsRequest, unregister, unregisterAccessibility

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.gef.GraphicalEditPart

addNodeListener, getContentPane, getFigure, getSourceConnections, getTargetConnections, removeNodeListener, setLayoutConstraint

Methods inherited from interface org.eclipse.gef.EditPart

addEditPartListener, addNotify, getChildren, getEditPolicy, getParent, getSelected, getTargetEditPart, getViewer, hasFocus, installEditPolicy, isActive, removeEditPartListener, removeEditPolicy, setFocus, setParent, setSelected, understandsRequest

Field Detail

accessibleEP

protected AccessibleEditPart accessibleEP

Used for accessibility.

elementGuid

protected java.lang.String elementGuid

Used for registering and unregistering the edit part

Constructor Detail

GraphicalEditPart

public GraphicalEditPart(EObject model)

Create an instance.

Parameters:

model - the underlying model.

Method Detail

activate

public void activate()

Registers this editpart to recieve notation and semantic events.

Specified by:

activate in interface EditPart

addListenerFilter

protected void addListenerFilter(java.lang.String filterId,
                                 NotificationListener listener,
                                 EObject element)

Adds a listener filter by adding the given listener to a passed notifier

Parameters:

filterId - A unique filter id (within the same editpart instance)

listener - A listener instance

element - An element to add the listener to

addListenerFilter

protected void addListenerFilter(java.lang.String filterId,
                                 NotificationListener listener,
                                 EObject element,
                                 EStructuralFeature feature)

Adds a listener filter by adding the given listener to a passed notifier

Parameters:

filterId - A unique filter id (within the same editpart instance)

listener - A listener instance

element - An element to add the listener to

createConnection

protected final ConnectionEditPart createConnection(java.lang.Object connectionView)

Creates a connection editpart.

createEditPolicies

protected final void createEditPolicies()

Overridden to support editpolicies installed programmatically and via the EditPolicyService. Subclasses should override createDefaultEditPolicies().

See Also:

AbstractEditPart.createEditPolicies()

createDefaultEditPolicies

protected void createDefaultEditPolicies()

Should be overridden to install editpolicies programmatically.

See Also:

AbstractEditPart.createEditPolicies()

deactivate

public void deactivate()

Specified by:

deactivate in interface EditPart

removeNotify

public void removeNotify()

Specified by:

removeNotify in interface EditPart

executeCommand

protected void executeCommand(Command command)

executes the passed Command

Parameters:

command - the command to exectue

basicGetModel

protected final java.lang.Object basicGetModel()

Access the model member variable

Returns:

getAdapter

public java.lang.Object getAdapter(java.lang.Class key)

Adds the ability to adapt to the edit part's view class.

Specified by:

getAdapter in interface IAdaptable

getChildBySemanticHintOnPrimaryView

public IGraphicalEditPart getChildBySemanticHintOnPrimaryView(java.lang.String semanticHint)

Utility method to get the primary view and then query for a child based on the semantic hint

Parameters:

semanticHint - String that is the hint that can retrieved on the getType method of View

Returns:

IGraphicalEditPart that matches with the given semanticHint

getChildBySemanticHint

public IGraphicalEditPart getChildBySemanticHint(java.lang.String semanticHint)

Method getChildBySemanticHint.

Specified by:

getChildBySemanticHint in interface IGraphicalEditPart

Parameters:

semanticHint -

Returns:

IGraphicalEditPart

getChildViewBySemanticHint

public View getChildViewBySemanticHint(java.lang.String semanticHint)

Method getChildViewBySemanticHint.

Parameters:

semanticHint -

Returns:

IGraphicalEditPart

getCommand

public Command getCommand(Request _request)

Return a command for the supplied request.

Specified by:

getCommand in interface EditPart

getContentPaneFor

protected IFigure getContentPaneFor(IGraphicalEditPart editPart)

gets the content pane for the supplied editpart.

Parameters:

editPart - the edit part to use to get the contents pane

Returns:

IFigure

getDiagramView

protected Diagram getDiagramView()

Convenience method returning the editpart's parimary view.

Returns:

the diagram

getPrimaryView

public final View getPrimaryView()

Convenience method returning the editpart's parimary view. Same as calling getView().getPrimaryView()

Specified by:

getPrimaryView in interface IGraphicalEditPart

Returns:

the primary view

getEditDomain

protected EditDomain getEditDomain()

gets this editpart's edit domain.

Returns:

the edit domain

getDiagramEditDomain

public IDiagramEditDomain getDiagramEditDomain()

Return the editpart's diagram edit domain.

Specified by:

getDiagramEditDomain in interface IGraphicalEditPart

Returns:

IDiagramEditDomain

getModelChildren

protected java.util.List getModelChildren()

Return this editpart's view (model) children.

Returns:

list of views.

getStructuralFeatureValue

public java.lang.Object getStructuralFeatureValue(EStructuralFeature feature)

Convenience method to retreive the value for the supplied value from the editpart's associated view element. Same as calling ViewUtil.getStructuralFeatureValue(getNotationView(),feature).

Specified by:

getStructuralFeatureValue in interface IGraphicalEditPart

Returns:

Object the value

resolveSemanticElement

public EObject resolveSemanticElement()

gets the semantic element associated to this editpart.

Specified by:

resolveSemanticElement in interface IGraphicalEditPart

Returns:

the semantic element or null if the semantic element was null or unresolvable

getTopGraphicEditPart

public TopGraphicEditPart getTopGraphicEditPart()

Walks up the editpart hierarchy to find and return the TopGraphicEditPart instance.

Specified by:

getTopGraphicEditPart in interface IGraphicalEditPart

Returns:

TopGraphicEditPart

getNotationView

public View getNotationView()

Return the editpart's associated Notation View.

Specified by:

getNotationView in interface IGraphicalEditPart

Returns:

View, the associated view or null if there is no associated Notation View

reactivateSemanticModel

protected void reactivateSemanticModel()

Method reactivateSemanticModel. This method reactivates the edit part's emantic model by: 1- removing semantic listeners 2- adding semantic listeners if the semantic reference is resolvable 3- Refreshing it This method is called in response to IView's Properties.ID_SEMANTICREF property change event However, it will only work under the following assumptions: 1- The old and new semantic models are compatible in their kind 2- The deltas between old and new semantic models do not affect notation 3- Connections are not refereshed since they are maintained by the diagram

findEditPart

public EditPart findEditPart(EditPart epBegin,
                             EObject theElement)

Finds an editpart given a starting editpart and an EObject

Specified by:

findEditPart in interface IGraphicalEditPart

Parameters:

epBegin - starting edit part

theElement - eObject to use

Returns:

the found edit part if there is any

refresh

public void refresh()

Invoke the editpart's refresh mechanism.

Specified by:

refresh in interface EditPart

refreshBackgroundColor

protected void refreshBackgroundColor()

Refresh the editpart's figure background colour.

refreshFont

protected void refreshFont()

Refresh the editpart's figure font.

refreshFontColor

protected void refreshFontColor()

Refresh the editpart's figure font colour.

refreshForegroundColor

protected void refreshForegroundColor()

Refresh the editpart's figure foreground colour.

refreshVisibility

protected void refreshVisibility()

Refresh the editpart's figure visibility.

refreshVisuals

protected void refreshVisuals()

Refresh the editpart's figure visual properties.

removeListenerFilter

protected void removeListenerFilter(java.lang.String filterId)

Removes a listener previously added with the given id

Parameters:

filterId - the filter ID

setBackgroundColor

protected void setBackgroundColor(Color color)

sets the back ground color of this edit part

Parameters:

color - the new value of the back ground color

setFont

protected void setFont(FontData fontData)

Sets the font to the label. This method could be overriden to change the font data of the font overrides typically look like this: super.setFont( new FontData( fontData.getName(), fontData.getHeight(), fontData.getStyle() <| &> SWT.????));

Parameters:

fontData - the font data

setFontColor

protected void setFontColor(Color color)

sets the font color

Parameters:

color - the new value of the font color

setForegroundColor

protected void setForegroundColor(Color color)

sets the fore ground color of this edit part's figure

Parameters:

color - the new value of the foregroundcolor

setStructuralFeatureValue

public void setStructuralFeatureValue(EStructuralFeature feature,
                                      java.lang.Object value)

Sets the passed feature if possible on this editpart's view to the passed value.

Specified by:

setStructuralFeatureValue in interface IGraphicalEditPart

Parameters:

feature - the feature to use

value - the value of the property being set

setVisibility

protected void setVisibility(boolean vis)

sets the visibility of this edit part

Parameters:

vis - the new value of the visibility

addNotationalListeners

protected void addNotationalListeners()

This method adds all listeners to the notational world (views, figures, editpart...etc) Override this method to add more notational listeners down the hierarchy

addSemanticListeners

protected void addSemanticListeners()

This method adds all listeners to the semantic element behind this EditPart Override this method to add more semantic listeners down the hierarchy This method is called only if the semantic element is resolvable

removeNotationalListeners

protected void removeNotationalListeners()

This method removes all listeners to the notational world (views, figures, editpart...etc) Override this method to remove notational listeners down the hierarchy

removeSemanticListeners

protected void removeSemanticListeners()

This method removes all listeners to the semantic element behind this EditPart Override this method to remove semantic listeners down the hierarchy

performRequest

public void performRequest(Request request)

Perform a request by executing a command from the target editpart of the request For the Direct_Edit request, we need to show up an editor first

Specified by:

performRequest in interface EditPart

See Also:

EditPart.performRequest(org.eclipse.gef.Request)

performDirectEditRequest

protected void performDirectEditRequest(Request request)

Performs a direct edit request (usually by showing some type of editor)

Parameters:

request - the direct edit request

getAccessibleEditPart

protected AccessibleEditPart getAccessibleEditPart()

See Also:

AbstractEditPart.getAccessibleEditPart()

registerModel

protected void registerModel()

Adds a [ref, editpart] mapping to the EditPartForElement map.

unregisterModel

protected void unregisterModel()

Remove this editpart from the EditPartForElement map.

refreshChild

protected final void refreshChild(GraphicalEditPart child)

Refreshes a child editpart by removing it and refreshing children

Parameters:

child - the child to refresh

refreshSourceConnection

protected final void refreshSourceConnection(ConnectionEditPart conn)

Refreshes a source connection editpart by removing it and refreshing source connections

Parameters:

conn - the connection to refresh

refreshTargetConnection

protected final void refreshTargetConnection(ConnectionEditPart conn)

Refreshes a target connection editpart by removing it and refreshing target connections

Parameters:

conn - the connection to refresh

handleMajorSemanticChange

protected final void handleMajorSemanticChange()

Handles the case where the semantic reference has changed.

getDragTracker

public DragTracker getDragTracker(Request request)

Specified by:

getDragTracker in interface EditPart

See Also:

EditPart.getDragTracker(org.eclipse.gef.Request)

isCanonical

public boolean isCanonical()

Returns:

true a canonical editpolicy has been installed on this editpart and it is active; otherwise false.

isSelectable

public boolean isSelectable()

Return true if the editpart's figure is visible; false otherwise.

Specified by:

isSelectable in interface EditPart

disableEditMode

public void disableEditMode()

Description copied from interface: org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

Disables edit mode of the EditPart. EditParts that are not editable do not provide commands to any requests.

Specified by:

disableEditMode in interface org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

addChild

protected void addChild(EditPart child,
                        int index)

enableEditMode

public void enableEditMode()

Description copied from interface: org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

Enables edit mode of the EditPart. EditParts that are editable provide commands to requests.

Specified by:

enableEditMode in interface org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

isEditModeEnabled

public boolean isEditModeEnabled()

Description copied from interface: org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

Returns true if the EditPart is editable. Editparts are editable after IEditableEditPart.enableEditMode()is called, and until IEditableEditPart.disableEditMode()is called.

Specified by:

isEditModeEnabled in interface org.eclipse.gmf.runtime.diagram.ui.internal.editparts.IEditableEditPart

Returns:

true when editable

showSourceFeedback

public void showSourceFeedback(Request request)

Specified by:

showSourceFeedback in interface EditPart

showTargetFeedback

public void showTargetFeedback(Request request)

Specified by:

showTargetFeedback in interface EditPart

eraseSourceFeedback

public void eraseSourceFeedback(Request request)

Specified by:

eraseSourceFeedback in interface EditPart

eraseTargetFeedback

public void eraseTargetFeedback(Request request)

Specified by:

eraseTargetFeedback in interface EditPart

getPrimaryChildEditPart

public EditPart getPrimaryChildEditPart()

this method will return the primary child EditPart inside this edit part

Specified by:

getPrimaryChildEditPart in interface IGraphicalEditPart

Returns:

the primary child view inside this edit part

getDiagramPreferencesHint

public PreferencesHint getDiagramPreferencesHint()

Description copied from interface: IGraphicalEditPart

Gets the preferences hint that is to be used to find the appropriate preference store from which to retrieve diagram preference values. The preference hint is mapped to a preference store in the preference registry <@link DiagramPreferencesRegistry>.

Specified by:

getDiagramPreferencesHint in interface IGraphicalEditPart

Returns:

the preferences hint

notifyChanged

public void notifyChanged(Notification notification)

Description copied from interface: NotificationListener

Will be called when a Notification event gets sent from the DiagramEventBroker after the transaction has been closed.

Specified by:

notifyChanged in interface NotificationListener

Parameters:

notification - the notification object

transactionAboutToCommit

public Command transactionAboutToCommit(Notification notification)

handleNotificationEvent

protected void handleNotificationEvent(Notification event)

Handles the property changed event. Clients should override to respond to the specific notification events they are interested. Note: This method may get called on a non-UI thread. Clients should either ensure that their code is thread safe and/or doesn't make unsupported calls (i.e. Display.getCurrent() ) assuming they are on the main thread. Alternatively if this is not possible, then the client can wrap their handler within the Display.synchExec runnable to ensure synchronization and subsequent execution on the main thread.

Parameters:

event - the Notification object that is the property changed event

getMapMode

protected org.eclipse.gmf.runtime.draw2d.ui.mapmode.IMapMode getMapMode()

Returns:

IMapMode that allows for the coordinate mapping from device to logical units.

hasNotationView

public boolean hasNotationView()

indicates if this edit part's model is a view or not

Returns:

true or false

getModel

public java.lang.Object getModel()

Returns tis edit part's model; the returned values is not granteed to be View, the return value could be null or any Object depending on the edit part implementation

Specified by:

getModel in interface EditPart

getEditingDomain

public org.eclipse.emf.transaction.TransactionalEditingDomain getEditingDomain()

Derives my editing domain from my model or my diagram element. Subclasses may override.

Specified by:

getEditingDomain in interface IGraphicalEditPart

Returns:

my transactional EMF editing domain

createFigure

protected IFigure createFigure()

setModel

public void setModel(java.lang.Object model)

Specified by:

setModel in interface EditPart

getRoot

public RootEditPart getRoot()

Specified by:

getRoot in interface EditPart

getPreferredValue

public java.lang.Object getPreferredValue(EStructuralFeature feature)

Description copied from interface: IGraphicalEditPart

Retrieves the preferred value for the supplied feature. This value could be the current value set in the preference store. Clients may override this to supply their own preferred values. The type of the return value will vary depending on the feature.

Specified by:

getPreferredValue in interface IGraphicalEditPart

Parameters:

feature - the feature to use

Returns:

Object The preferred value for the supplied feature. The object is of the same type as if the value of the feature were retrieved directly from the view.

getResourceManager

protected ResourceManager getResourceManager()

Gets the resource manager to remember the resources allocated for this graphical viewer. All resources will be disposed when the graphical viewer is closed if they have not already been disposed.

Returns:

the resource manager