Package org.eclipse.gef.editparts
Class AbstractConnectionEditPart
java.lang.Object
org.eclipse.gef.editparts.AbstractEditPart
org.eclipse.gef.editparts.AbstractGraphicalEditPart
org.eclipse.gef.editparts.AbstractConnectionEditPart
- All Implemented Interfaces:
IAdaptable
,ConnectionEditPart
,EditPart
,GraphicalEditPart
,LayerConstants
,RequestConstants
public abstract class AbstractConnectionEditPart
extends AbstractGraphicalEditPart
implements ConnectionEditPart, LayerConstants
The base implementation for
ConnectionEditPart
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected final class
Provides accessibility support for when connections are also themselves nodes.Nested classes/interfaces inherited from class org.eclipse.gef.editparts.AbstractGraphicalEditPart
AbstractGraphicalEditPart.AccessibleGraphicalEditPart
Nested classes/interfaces inherited from class org.eclipse.gef.editparts.AbstractEditPart
AbstractEditPart.EditPolicyIterator
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Field Summary
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.LayerConstants
CONNECTION_LAYER, FEEDBACK_LAYER, GRID_LAYER, GUIDE_LAYER, HANDLE_LAYER, PRIMARY_LAYER, PRINTABLE_LAYERS, SCALABLE_LAYERS, SCALED_FEEDBACK_LAYER
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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected void
Activates the Figure representing this, by setting up the start and end connections, and adding the figure to the Connection Layer.void
Called after the EditPart has been added to its parent.protected org.eclipse.draw2d.IFigure
Returns a newly created Figure to represent these type of EditParts.protected void
Deactivates the Figure representing this, by removing it from the connection layer, and resetting the source and target connections tonull
.<T> T
getAdapter
(Class<T> adapter) AbstractConnectionEditPart
extends getAdapter() to overrides theAccessibleAnchorProvider
adapter returned by the superclass.org.eclipse.draw2d.Connection
Convenience method for casting this GraphicalEditPart's Figure to aConnection
getDragTracker
(Request req) Overridden to return a defaultDragTracker
for GraphicalEditParts.protected org.eclipse.draw2d.ConnectionAnchor
Returns theConnectionAnchor
for the source end of the connection.protected org.eclipse.draw2d.ConnectionAnchor
Returns theConnectionAnchor
for the target end of the connection.void
refresh()
Extended here to also refresh the ConnectionAnchors.protected void
Updates the source ConnectionAnchor.protected void
Updates the target ConnectionAnchor.void
Extended here to remove the ConnectionEditPart's connection figure from the connection layer.void
Extended to implement automatic addNotify and removeNotify handling.void
Sets the source EditPart of this connection.void
Sets the target EditPart of this connection.Methods inherited from class org.eclipse.gef.editparts.AbstractGraphicalEditPart
activate, addChildVisual, addNodeListener, addSourceConnection, addTargetConnection, createConnection, createOrFindConnection, deactivate, fireRemovingSourceConnection, fireRemovingTargetConnection, fireSourceConnectionAdded, fireTargetConnectionAdded, getContentPane, getFigure, getLayer, getModelSourceConnections, getModelTargetConnections, getSourceConnections, getTargetConnections, isSelectable, 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, addChild, addEditPartListener, createChild, createEditPolicies, deactivateEditPolicies, debug, debugFeedback, eraseSourceFeedback, eraseTargetFeedback, fireActivated, fireChildAdded, fireDeactivated, fireRemovingChild, fireSelectionChanged, getAccessibleEditPart, getChildren, getCommand, getEditPolicy, getEditPolicyIterator, getEventListeners, getFlag, getModel, getModelChildren, getParent, getRoot, getSelected, getTargetEditPart, getViewer, hasFocus, installEditPolicy, isActive, performRequest, refreshChildren, refreshVisuals, register, registerAccessibility, registerModel, removeChild, removeEditPartListener, removeEditPolicy, setFlag, setFocus, setModel, setSelected, showSourceFeedback, showTargetFeedback, toString, understandsRequest, unregister, unregisterAccessibility, unregisterModel
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.eclipse.gef.EditPart
activate, addEditPartListener, deactivate, eraseSourceFeedback, eraseTargetFeedback, getChildren, getCommand, getEditPolicy, getModel, getParent, getRoot, getSelected, getTargetEditPart, getViewer, hasFocus, installEditPolicy, isActive, isSelectable, performRequest, removeEditPartListener, removeEditPolicy, setFocus, setModel, setSelected, showSourceFeedback, showTargetFeedback, understandsRequest
Methods inherited from interface org.eclipse.gef.GraphicalEditPart
addNodeListener, getContentPane, getFigure, getSourceConnections, getTargetConnections, removeNodeListener, setLayoutConstraint
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Constructor Details
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AbstractConnectionEditPart
public AbstractConnectionEditPart()
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Method Details
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activateFigure
protected void activateFigure()Activates the Figure representing this, by setting up the start and end connections, and adding the figure to the Connection Layer.- See Also:
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addNotify
public void addNotify()Description copied from interface:EditPart
Called after the EditPart has been added to its parent. This is used to indicate to the EditPart that it should refresh itself for the first time.- Specified by:
addNotify
in interfaceEditPart
- Overrides:
addNotify
in classAbstractGraphicalEditPart
- See Also:
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createFigure
protected org.eclipse.draw2d.IFigure createFigure()Returns a newly created Figure to represent these type of EditParts.- Specified by:
createFigure
in classAbstractGraphicalEditPart
- Returns:
- The created Figure.
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deactivateFigure
protected void deactivateFigure()Deactivates the Figure representing this, by removing it from the connection layer, and resetting the source and target connections tonull
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getAdapter
AbstractConnectionEditPart
extends getAdapter() to overrides theAccessibleAnchorProvider
adapter returned by the superclass. When treating a connection as a node for other connections, it makes sense to target its midpoint, and not the edge of its bounds.- Specified by:
getAdapter
in interfaceIAdaptable
- Overrides:
getAdapter
in classAbstractGraphicalEditPart
- Parameters:
adapter
- the adapter Class- Returns:
- the adapter
- See Also:
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getConnectionFigure
public org.eclipse.draw2d.Connection getConnectionFigure()Convenience method for casting this GraphicalEditPart's Figure to aConnection
- Returns:
- the Figure as a Connection
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getDragTracker
Description copied from class:AbstractGraphicalEditPart
Overridden to return a defaultDragTracker
for GraphicalEditParts.- Specified by:
getDragTracker
in interfaceEditPart
- Overrides:
getDragTracker
in classAbstractGraphicalEditPart
- Parameters:
req
- aRequest
indicating the context of the drag- Returns:
null
or a DragTracker- See Also:
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getSource
- Specified by:
getSource
in interfaceConnectionEditPart
- Returns:
- the EditPart at the source end of this connection.
- See Also:
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getTarget
- Specified by:
getTarget
in interfaceConnectionEditPart
- Returns:
- the EditPart at the target end of this connection.
- See Also:
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getSourceConnectionAnchor
protected org.eclipse.draw2d.ConnectionAnchor getSourceConnectionAnchor()Returns theConnectionAnchor
for the source end of the connection. If the source is an instance ofNodeEditPart
, that interface will be used to determine the proper ConnectionAnchor. If the source is not an instance ofNodeEditPart
, this method should be overridden to return the correct ConnectionAnchor. Failure to do this will cause a default anchor to be used so that the connection figure will be made visible to the developer.- Returns:
- ConnectionAnchor for the source end of the Connection
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getTargetConnectionAnchor
protected org.eclipse.draw2d.ConnectionAnchor getTargetConnectionAnchor()Returns theConnectionAnchor
for the target end of the connection. If the target is an instance ofNodeEditPart
, that interface will be used to determine the proper ConnectionAnchor. If the target is not an instance ofNodeEditPart
, this method should be overridden to return the correct ConnectionAnchor. Failure to do this will cause a default anchor to be used so that the connection figure will be made visible to the developer.- Returns:
- ConnectionAnchor for the target end of the Connection
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refresh
public void refresh()Extended here to also refresh the ConnectionAnchors.- Specified by:
refresh
in interfaceEditPart
- Overrides:
refresh
in classAbstractGraphicalEditPart
- See Also:
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refreshSourceAnchor
protected void refreshSourceAnchor()Updates the source ConnectionAnchor. Subclasses should overridegetSourceConnectionAnchor()
if necessary, and not this method. -
refreshTargetAnchor
protected void refreshTargetAnchor()Updates the target ConnectionAnchor. Subclasses should overridegetTargetConnectionAnchor()
if necessary, and not this method. -
removeNotify
public void removeNotify()Extended here to remove the ConnectionEditPart's connection figure from the connection layer.- Specified by:
removeNotify
in interfaceEditPart
- Overrides:
removeNotify
in classAbstractGraphicalEditPart
- See Also:
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setParent
Extended to implement automatic addNotify and removeNotify handling.- Specified by:
setParent
in interfaceEditPart
- Overrides:
setParent
in classAbstractEditPart
- Parameters:
parent
- the parent EditPart- See Also:
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setSource
Sets the source EditPart of this connection.- Specified by:
setSource
in interfaceConnectionEditPart
- Parameters:
editPart
- EditPart which is the source.
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setTarget
Sets the target EditPart of this connection.- Specified by:
setTarget
in interfaceConnectionEditPart
- Parameters:
editPart
- EditPart which is the target.
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