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Eclipse GEF 3.3 |
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java.lang.Objectorg.eclipse.gef.editparts.AbstractEditPart
org.eclipse.gef.editparts.AbstractGraphicalEditPart
org.eclipse.gef.editparts.SimpleRootEditPart
org.eclipse.gef.editparts.FreeformGraphicalRootEditPart
A graphical root that uses FreeformFigures as
the layers in the diagram. The contents
editpart must provide a FreeformFigure as its figure. Freeform figures are special
because they can expand in any direction. This allows the user to drag objects or
bendpoints into the negative X and Y coordinates of a diagram. If this feature is not
being used, clients should use the FreeformGraphicalRootEditPart as their
viewer's root editpart.
IMPORTANT: The contents editpart that is added to a freeform root should
have a FreeformFigure (such as FreeformLayer) as its Figure. The primary
layer is not using a draw2d LayoutManager, and will not size the contents'
figure properly unless it is a freeform figure.
IMPORTANT:The freeform root uses a FreeformViewport as its
primary figure. This class must be used with the ScrollingGraphicalViewer. The viewport gets installed into
that viewer's FigureCanvas, which provides native scrollbars
for scrolling the viewport.
This root serves as the diagram's LayerManager,
providing the following layer structure, in top-to-bottom order:
| Root Freeform Layered Pane | |
| ├ | Feedback Layer |
| ├ | Handle Layer |
| └ | Printable Layers |
| ├ Connection Layer | |
| └ Primary Layer | |
| 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 |
| Nested classes inherited from class org.eclipse.gef.editparts.LayerManager |
LayerManager.Helper |
| 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.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.editparts.LayerManager |
ID |
| 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 | |
FreeformGraphicalRootEditPart()
|
|
| Method Summary | |
protected IFigure |
createFigure()
The default root figure is a figure with a stack layout. |
protected GridLayer |
createGridLayer()
Creates a grid. |
protected void |
createLayers(LayeredPane layeredPane)
Creates the top-most set of layers on the given layered pane. |
protected LayeredPane |
createPrintableLayers()
Creates a layered pane and the layers that should be printed. |
Object |
getAdapter(Class adapter)
Extends AbstractEditPart.getAdapter(Class) to handle additional adapter types.
|
IFigure |
getContentPane()
The contents' Figure will be added to the PRIMARY_LAYER. |
DragTracker |
getDragTracker(Request req)
Should not be called, but returns a MarqeeDragTracker for good measure. |
IFigure |
getLayer(Object key)
Returns the layer indicated by the key. |
Object |
getModel()
The root editpart does not have a real model. |
protected LayeredPane |
getPrintableLayers()
Returns the LayeredPane that should be used during printing. |
protected void |
refreshGridLayer()
Updates the grid based on properties set on the graphical viewer: SnapToGrid.PROPERTY_GRID_VISIBLE, SnapToGrid.PROPERTY_GRID_SPACING, and SnapToGrid.PROPERTY_GRID_ORIGIN.
|
protected void |
register()
Registers itself in the viewer's various registries. |
protected void |
unregister()
Undoes any registration performed by register(). |
| Methods inherited from class org.eclipse.gef.editparts.SimpleRootEditPart |
createEditPolicies, getCommand, getContents, getRoot, getViewer, refreshChildren, setContents, setViewer |
| 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, getParent, getSelected, getTargetEditPart, hasFocus, installEditPolicy, isActive, isSelectable, performRequest, refresh, removeEditPartListener, removeEditPolicy, removeNotify, setFocus, setModel, setParent, setSelected, showSourceFeedback, showTargetFeedback, understandsRequest |
| Constructor Detail |
public FreeformGraphicalRootEditPart()
| Method Detail |
protected IFigure createFigure()
SimpleRootEditPart
createFigure in class SimpleRootEditPartAbstractGraphicalEditPart.createFigure()protected GridLayer createGridLayer()
grid. Sub-classes can override this method to
customize the appearance of the grid. The grid layer should be the first layer (i.e.,
beneath the primary layer) if it is not to cover up parts on the primary layer. In
that case, the primary layer should be transparent so that the grid is visible.
protected void createLayers(LayeredPane layeredPane)
layeredPane - the parent for the created layersprotected LayeredPane createPrintableLayers()
PrintGraphicalViewerOperationpublic Object getAdapter(Class adapter)
AbstractGraphicalEditPartAbstractEditPart.getAdapter(Class) to handle additional adapter types.
Currently, these types include AccessibleHandleProvider and AccessibleAnchorProvider. Subclasses should extend this method to support
additional adapter types, or to replace the default provided adapaters.
getAdapter in class AbstractGraphicalEditPartorg.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)public IFigure getContentPane()
getContentPane in interface GraphicalEditPartgetContentPane in class AbstractGraphicalEditPartGraphicalEditPart.getContentPane()public DragTracker getDragTracker(Request req)
getDragTracker in interface EditPartgetDragTracker in class AbstractGraphicalEditPartEditPart.getDragTracker(org.eclipse.gef.Request)public IFigure getLayer(Object key)
getLayer in interface LayerManagergetLayer in class AbstractGraphicalEditPartkey - ID of the Layer
null if it doesn't existLayerManager.getLayer(Object)public Object getModel()
getModel in interface EditPartgetModel in class AbstractEditPartEditPart.getModel()protected LayeredPane getPrintableLayers()
LayerConstants.PRINTABLE_LAYERS.
protected void refreshGridLayer()
grid based on properties set on the graphical viewer: SnapToGrid.PROPERTY_GRID_VISIBLE, SnapToGrid.PROPERTY_GRID_SPACING, and SnapToGrid.PROPERTY_GRID_ORIGIN.
This method is invoked initially when the GridLayer is created, and when any of the above-mentioned properties are changed on the viewer.
protected void register()
AbstractEditPart
register in class AbstractEditPartAbstractEditPart.register()protected void unregister()
AbstractEditPartAbstractEditPart.register(). The provided base classes
will correctly unregister their visuals.
unregister in class AbstractEditPartAbstractEditPart.unregister()
|
Eclipse GEF 3.3 |
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