Package org.eclipse.gef.editparts
Class RootTreeEditPart
java.lang.Object
org.eclipse.gef.editparts.AbstractEditPart
org.eclipse.gef.editparts.RootTreeEditPart
- All Implemented Interfaces:
IAdaptable
,EditPart
,RequestConstants
,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.-
Nested Class Summary
Nested classes/interfaces inherited from class org.eclipse.gef.editparts.AbstractEditPart
AbstractEditPart.EditPolicyIterator
-
Field Summary
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
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected void
addChildVisual
(EditPart childEditPart, int index) This is where the child gets added.protected void
Creates the initial EditPolicies and/or reserves slots for dynamic ones.getCommand
(Request request) Subclasses should rarely extend this method.Returns the contents EditPart.getDragTracker
(Request request) This method will never be called on a tree root.getRoot()
Returnsthis
.Convenience method for returning theEditPartViewer
for this part.The editpart holds onto the SWT Tree, which is also the contents' widget.protected void
Overridden to do nothing since the child is explicitly set.protected void
removeChildVisual
(EditPart childEditPart) This is where the child gets removed.void
setContents
(EditPart editpart) Sets the contents EditPart.void
setViewer
(EditPartViewer epviewer) Sets the root's EditPartViewer.void
Called byTreeViewer
to set theTree
into the root.Methods inherited from class org.eclipse.gef.editparts.AbstractEditPart
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
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, 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
Methods inherited from interface org.eclipse.core.runtime.IAdaptable
getAdapter
-
Constructor Details
-
RootTreeEditPart
public RootTreeEditPart()
-
-
Method Details
-
addChildVisual
This is where the child gets added. No TreeItem is needed here because the contents is actually represented by the Tree iteself.- Specified by:
addChildVisual
in classAbstractEditPart
- Parameters:
childEditPart
- EditPart of child to be added.index
- Position where it is to be added.- See Also:
-
createEditPolicies
protected void createEditPolicies()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.- Specified by:
createEditPolicies
in classAbstractEditPart
- See Also:
-
getCommand
Description copied from class:AbstractEditPart
Subclasses should rarely extend this method. The default implementation combines the contributions from each installedEditPolicy
. This method is implemented indirectly using EditPolicies.It is recommended that Command creation be handled by EditPolicies, and not directly by the EditPart. - Specified by:
getCommand
in interfaceEditPart
- Overrides:
getCommand
in classAbstractEditPart
- Parameters:
request
- the Request- Returns:
- a Command
- See Also:
-
getContents
Description copied from interface:RootEditPart
Returns the contents EditPart. A RootEditPart only has a single child, called its contents.- Specified by:
getContents
in interfaceRootEditPart
- Returns:
- the contents.
- See Also:
-
getDragTracker
This method will never be called on a tree root.- Specified by:
getDragTracker
in interfaceEditPart
- Parameters:
request
- aRequest
indicating the context of the drag- Returns:
null
or a DragTracker- See Also:
-
getRoot
Returnsthis
.- Specified by:
getRoot
in interfaceEditPart
- Overrides:
getRoot
in classAbstractEditPart
- Returns:
null
or theRootEditPart
- See Also:
-
getViewer
Description copied from interface:EditPart
Convenience method for returning theEditPartViewer
for this part.- Specified by:
getViewer
in interfaceEditPart
- Specified by:
getViewer
in interfaceRootEditPart
- Overrides:
getViewer
in classAbstractEditPart
- Returns:
- the
EditPartViewer
ornull
- See Also:
-
getWidget
The editpart holds onto the SWT Tree, which is also the contents' widget.- Specified by:
getWidget
in interfaceTreeEditPart
- Returns:
- the Widget
- See Also:
-
refreshChildren
protected void refreshChildren()Overridden to do nothing since the child is explicitly set.- Overrides:
refreshChildren
in classAbstractEditPart
- See Also:
-
removeChildVisual
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.- Specified by:
removeChildVisual
in classAbstractEditPart
- Parameters:
childEditPart
- EditPart of child to be removed.
-
setContents
Description copied from interface:RootEditPart
Sets the contents EditPart. A RootEditPart only has a single child, called its contents.- Specified by:
setContents
in interfaceRootEditPart
- Parameters:
editpart
- the contents- See Also:
-
setViewer
Description copied from interface:RootEditPart
Sets the root's EditPartViewer.- Specified by:
setViewer
in interfaceRootEditPart
- Parameters:
epviewer
- the EditPartViewer- See Also:
-
setWidget
Called byTreeViewer
to set theTree
into the root. The root simply holds onto this widget and passes it to the contents when the contents is added.- Specified by:
setWidget
in interfaceTreeEditPart
- Parameters:
w
- the Widget- See Also:
-