Package org.eclipse.gef.editparts
Class RootTreeEditPart
- java.lang.Object
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- org.eclipse.gef.editparts.AbstractEditPart
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- org.eclipse.gef.editparts.RootTreeEditPart
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- All Implemented Interfaces:
IAdaptable,EditPart,RequestConstants,RootEditPart,TreeEditPart
public class RootTreeEditPart extends AbstractEditPart implements RootEditPart, TreeEditPart
The root editpart for aTreeViewer. 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 theTreeto the contents as its widget.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.eclipse.gef.editparts.AbstractEditPart
AbstractEditPart.EditPolicyIterator
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Field Summary
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Fields inherited from class org.eclipse.gef.editparts.AbstractEditPart
children, FLAG_ACTIVE, FLAG_FOCUS, MAX_FLAG
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Fields inherited from interface org.eclipse.gef.EditPart
SELECTED, SELECTED_NONE, SELECTED_PRIMARY
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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 Constructor Description RootTreeEditPart()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voidaddChildVisual(EditPart childEditPart, int index)This is where the child gets added.protected voidcreateEditPolicies()Creates the initial EditPolicies and/or reserves slots for dynamic ones.CommandgetCommand(Request request)Subclasses should rarely extend this method.EditPartgetContents()Returns the contents EditPart.DragTrackergetDragTracker(Request request)This method will never be called on a tree root.RootEditPartgetRoot()Returnsthis.EditPartViewergetViewer()Convenience method for returning theEditPartViewerfor this part.WidgetgetWidget()The editpart holds onto the SWT Tree, which is also the contents' widget.protected voidrefreshChildren()Overridden to do nothing since the child is explicitly set.protected voidremoveChildVisual(EditPart childEditPart)This is where the child gets removed.voidsetContents(EditPart editpart)Sets the contents EditPart.voidsetViewer(EditPartViewer epviewer)Sets the root's EditPartViewer.voidsetWidget(Widget w)Called byTreeViewerto set theTreeinto 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
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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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
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Methods inherited from interface org.eclipse.core.runtime.IAdaptable
getAdapter
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Method Detail
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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.- Specified by:
addChildVisualin classAbstractEditPart- Parameters:
childEditPart- EditPart of child to be added.index- Position where it is to be added.- See Also:
AbstractEditPart.addChild(EditPart, int),AbstractGraphicalEditPart.removeChildVisual(EditPart)
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createEditPolicies
protected void createEditPolicies()
Description copied from class:AbstractEditPartCreates 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.nullcan be used to reserve a "slot", should there be some desire to guarantee the ordering of EditPolcies.- Specified by:
createEditPoliciesin classAbstractEditPart- See Also:
AbstractEditPart.createEditPolicies()
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getCommand
public Command getCommand(Request request)
Description copied from class:AbstractEditPartSubclasses 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:
getCommandin interfaceEditPart- Overrides:
getCommandin classAbstractEditPart- Parameters:
request- the Request- Returns:
- a Command
- See Also:
EditPart.getCommand(org.eclipse.gef.Request)
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getContents
public EditPart getContents()
Description copied from interface:RootEditPartReturns the contents EditPart. A RootEditPart only has a single child, called its contents.- Specified by:
getContentsin interfaceRootEditPart- Returns:
- the contents.
- See Also:
RootEditPart.getContents()
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getDragTracker
public DragTracker getDragTracker(Request request)
This method will never be called on a tree root.- Specified by:
getDragTrackerin interfaceEditPart- Parameters:
request- aRequestindicating the context of the drag- Returns:
nullor a DragTracker- See Also:
EditPart.getDragTracker(org.eclipse.gef.Request)
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getRoot
public RootEditPart getRoot()
Returnsthis.- Specified by:
getRootin interfaceEditPart- Overrides:
getRootin classAbstractEditPart- Returns:
nullor theRootEditPart- See Also:
EditPart.getRoot()
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getViewer
public EditPartViewer getViewer()
Description copied from interface:EditPartConvenience method for returning theEditPartViewerfor this part.- Specified by:
getViewerin interfaceEditPart- Specified by:
getViewerin interfaceRootEditPart- Overrides:
getViewerin classAbstractEditPart- Returns:
- the
EditPartViewerornull - See Also:
RootEditPart.getViewer()
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getWidget
public Widget getWidget()
The editpart holds onto the SWT Tree, which is also the contents' widget.- Specified by:
getWidgetin interfaceTreeEditPart- Returns:
- the Widget
- See Also:
TreeEditPart.getWidget()
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refreshChildren
protected void refreshChildren()
Overridden to do nothing since the child is explicitly set.- Overrides:
refreshChildrenin classAbstractEditPart- See Also:
AbstractEditPart.refreshChildren()
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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.- Specified by:
removeChildVisualin classAbstractEditPart- Parameters:
childEditPart- EditPart of child to be removed.
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setContents
public void setContents(EditPart editpart)
Description copied from interface:RootEditPartSets the contents EditPart. A RootEditPart only has a single child, called its contents.- Specified by:
setContentsin interfaceRootEditPart- Parameters:
editpart- the contents- See Also:
RootEditPart.setContents(org.eclipse.gef.EditPart)
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setViewer
public void setViewer(EditPartViewer epviewer)
Description copied from interface:RootEditPartSets the root's EditPartViewer.- Specified by:
setViewerin interfaceRootEditPart- Parameters:
epviewer- the EditPartViewer- See Also:
RootEditPart.setViewer(org.eclipse.gef.EditPartViewer)
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setWidget
public void setWidget(Widget w)
Called byTreeViewerto set theTreeinto the root. The root simply holds onto this widget and passes it to the contents when the contents is added.- Specified by:
setWidgetin interfaceTreeEditPart- Parameters:
w- the Widget- See Also:
TreeEditPart.setWidget(org.eclipse.swt.widgets.Widget)
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