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org.eclipse.gef.editparts
Class RootTreeEditPart
java.lang.Object
org.eclipse.gef.editparts.AbstractEditPart
org.eclipse.gef.editparts.RootTreeEditPart
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All Implemented Interfaces:
-
EditPart,
RequestConstants,
RootEditPart,
TreeEditPart
- public class RootTreeEditPart
- extends
AbstractEditPart
- implements
RootEditPart,
TreeEditPart
The root editpart for a TreeViewer. There is limited control of a Tree, so
this root implementation should work for all purposes. This implementation does little
more than hold onto the viewer, and pass the Tree to the contents as its
widget.
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Fields inherited from interface org.eclipse.gef.
RequestConstants
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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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Methods inherited from class org.eclipse.gef.editparts.
AbstractEditPart
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activate,
activateEditPolicies,
addChild,
addEditPartListener,
addNotify,
createChild,
deactivate,
deactivateEditPolicies,
debug,
debugFeedback,
eraseSourceFeedback,
eraseTargetFeedback,
fireActivated,
fireChildAdded,
fireDeactivated,
fireRemovingChild,
fireSelectionChanged,
getAccessibleEditPart,
getAdapter,
getChildren,
getEditPolicy,
getEditPolicyIterator,
getEventListeners,
getFlag,
getModel,
getModelChildren,
getParent,
getSelected,
getTargetEditPart,
hasFocus,
installEditPolicy,
isActive,
isSelectable,
performRequest,
refresh,
refreshVisuals,
register,
registerAccessibility,
registerModel,
registerVisuals,
removeChild,
removeEditPartListener,
removeEditPolicy,
removeNotify,
reorderChild,
setFlag,
setFocus,
setModel,
setParent,
setSelected,
showSourceFeedback,
showTargetFeedback,
toString,
understandsRequest,
unregister,
unregisterAccessibility,
unregisterModel,
unregisterVisuals
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.eclipse.gef.
EditPart
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activate,
addEditPartListener,
addNotify,
deactivate,
eraseSourceFeedback,
eraseTargetFeedback,
getChildren,
getEditPolicy,
getModel,
getParent,
getSelected,
getTargetEditPart,
hasFocus,
installEditPolicy,
isActive,
isSelectable,
performRequest,
refresh,
removeEditPartListener,
removeEditPolicy,
removeNotify,
setFocus,
setModel,
setParent,
setSelected,
showSourceFeedback,
showTargetFeedback,
understandsRequest
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RootTreeEditPart
public RootTreeEditPart()
addChildVisual
protected void addChildVisual(
EditPart childEditPart,
int index)
- This is where the child gets added. No TreeItem is needed here because
the contents is actually represented by the Tree iteself.
-
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Specified by:
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addChildVisual
in class
AbstractEditPart
-
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Parameters:
-
childEditPart - EditPart of child to be added. -
index - Position where it is to be added. -
See Also:
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AbstractEditPart.addChild(EditPart, int),
AbstractGraphicalEditPart.removeChildVisual(EditPart)
createEditPolicies
protected void createEditPolicies()
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Description copied from class:
AbstractEditPart
- Creates the initial EditPolicies and/or reserves slots for dynamic ones. Should be
implemented to install the inital EditPolicies based on the model's initial state.
null can be used to reserve a "slot", should there be some desire to
guarantee the ordering of EditPolcies.
-
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Specified by:
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createEditPolicies
in class
AbstractEditPart
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-
See Also:
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AbstractEditPart.createEditPolicies()
getCommand
public
Command getCommand(
Request request)
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Description copied from interface:
EditPart
- Returns the
Command to perform the specified Request or null.
-
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Specified by:
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getCommand
in interface
EditPart
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Overrides:
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getCommand
in class
AbstractEditPart
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Parameters:
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request - the Request
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Returns:
- a Command
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See Also:
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EditPart.getCommand(org.eclipse.gef.Request)
getContents
public
EditPart getContents()
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Description copied from interface:
RootEditPart
- Returns the contents EditPart. A RootEditPart only has a single child, called its
contents.
-
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Specified by:
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getContents
in interface
RootEditPart
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Returns:
- the contents.
-
See Also:
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RootEditPart.getContents()
getDragTracker
public
DragTracker getDragTracker(
Request request)
- This method will never be called on a tree root.
-
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Specified by:
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getDragTracker
in interface
EditPart
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Parameters:
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request - a Request indicating the context of the drag
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Returns:
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null or a DragTracker -
See Also:
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EditPart.getDragTracker(org.eclipse.gef.Request)
getRoot
public
RootEditPart getRoot()
- Returns
this.
-
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Specified by:
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getRoot
in interface
EditPart
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Overrides:
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getRoot
in class
AbstractEditPart
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-
See Also:
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EditPart.getRoot()
getViewer
public
EditPartViewer getViewer()
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Description copied from interface:
RootEditPart
- Returns the root's EditPartViewer.
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-
Specified by:
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getViewer
in interface
RootEditPart
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Overrides:
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getViewer
in class
AbstractEditPart
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-
See Also:
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RootEditPart.getViewer()
getWidget
public Widget getWidget()
- The editpart holds onto the SWT Tree, which is also the contents' widget.
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Specified by:
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getWidget
in interface
TreeEditPart
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Returns:
- the Widget
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See Also:
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TreeEditPart.getWidget()
refreshChildren
protected void refreshChildren()
- Overridden to do nothing since the child is explicitly set.
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Overrides:
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refreshChildren
in class
AbstractEditPart
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-
See Also:
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AbstractEditPart.refreshChildren()
removeChildVisual
protected void removeChildVisual(
EditPart childEditPart)
- This is where the child gets removed. This method is overridden
here so that the AbstractTreeEditPart does not dispose the widget,
which is the Tree in this case. The tree is owned by the viewer, not the child.
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Specified by:
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removeChildVisual
in class
AbstractEditPart
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Parameters:
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childEditPart - EditPart of child to be removed.
setContents
public void setContents(
EditPart editpart)
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Description copied from interface:
RootEditPart
- Sets the contents EditPart. A RootEditPart only has a single child, called its
contents.
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Specified by:
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setContents
in interface
RootEditPart
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Parameters:
-
editpart - the contents -
See Also:
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RootEditPart.setContents(org.eclipse.gef.EditPart)
setViewer
public void setViewer(
EditPartViewer epviewer)
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Description copied from interface:
RootEditPart
- Sets the root's EditPartViewer.
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Specified by:
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setViewer
in interface
RootEditPart
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Parameters:
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epviewer - the EditPartViewer -
See Also:
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RootEditPart.setViewer(org.eclipse.gef.EditPartViewer)
setWidget
public void setWidget(Widget w)
- Called by
TreeViewer to set the Tree into the root. The root
simply holds onto this widget and passes it to the contents when the contents is added.
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Specified by:
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setWidget
in interface
TreeEditPart
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Parameters:
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w - the Widget -
See Also:
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org.eclipse.gef.TreeEditPart#setWidget(org.eclipse.swt.widgets.Widget)
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
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