Package org.eclipse.gef
Class SelectionManager
- java.lang.Object
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- org.eclipse.gef.SelectionManager
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public class SelectionManager extends java.lang.Object
Manages a viewer's selection model. Selection management includes representing a form of selection which is available to clients of a viewer as an ISelection. It also includes managing the notion of focus, which is closely tied to the current selection. The selection manager provides the mechanism for modifying the selection and any validation.WARNING: Subclassing this class is considered experimental at this point.
- Since:
- 3.2
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Constructor Summary
Constructors Modifier Constructor Description protected
SelectionManager()
Default Constructor
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
appendSelection(EditPart editpart)
Appends theEditPart
to the current selection.static SelectionManager
createDefault()
Creates the default implementation for a selection manager.void
deselect(EditPart editpart)
Removes theEditPart
from the current selection.void
deselectAll()
Deselects everything.protected void
fireSelectionChanged()
Causes the viewer to fire selection changed notification to all listeners.protected EditPart
getFocus()
Returns the focus editpart.ISelection
getSelection()
Returns the current selection.protected EditPartViewer
getViewer()
Returnsnull
or the viewer whose selection is managed.protected void
hookViewer(EditPartViewer viewer)
Provides a hook for when the viewer has been set.void
internalHookControl(Control control)
For internal use only.void
internalInitialize(EditPartViewer viewer, java.util.List selection, java.lang.Runnable notifier)
For internal use only.void
internalUninstall()
For internal use only.void
setFocus(EditPart part)
Sets the focus part.void
setSelection(ISelection newSelection)
Sets the selection.
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Method Detail
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createDefault
public static SelectionManager createDefault()
Creates the default implementation for a selection manager.- Returns:
- the default selection manager
- Since:
- 3.2
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appendSelection
public void appendSelection(EditPart editpart)
Appends theEditPart
to the current selection. The EditPart becomes the new primary selection. Fires selection changed to allISelectionChangedListener
s.- Parameters:
editpart
- the EditPart to append- Since:
- 3.2
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deselect
public void deselect(EditPart editpart)
Removes theEditPart
from the current selection.- Parameters:
editpart
- the editpart- Since:
- 3.2
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deselectAll
public void deselectAll()
Deselects everything.- Since:
- 3.2
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fireSelectionChanged
protected final void fireSelectionChanged()
Causes the viewer to fire selection changed notification to all listeners.- Since:
- 3.2
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getFocus
protected EditPart getFocus()
Returns the focus editpart.- Returns:
- the focus editpart
- Since:
- 3.2
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getSelection
public ISelection getSelection()
Returns the current selection.- Returns:
- the selection
- Since:
- 3.2
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getViewer
protected EditPartViewer getViewer()
Returnsnull
or the viewer whose selection is managed.- Returns:
null
or the viewer- Since:
- 3.2
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internalHookControl
public void internalHookControl(Control control)
For internal use only. This API is subject to change.- Parameters:
control
- the control- Since:
- 3.2
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internalUninstall
public void internalUninstall()
For internal use only. This API is subject to change.- Since:
- 3.2
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hookViewer
protected void hookViewer(EditPartViewer viewer)
Provides a hook for when the viewer has been set.- Parameters:
viewer
- the viewer.- Since:
- 3.2
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internalInitialize
public void internalInitialize(EditPartViewer viewer, java.util.List selection, java.lang.Runnable notifier)
For internal use only.- Parameters:
viewer
- viewerselection
- selectionnotifier
- notifier- Since:
- 3.2
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setFocus
public void setFocus(EditPart part)
Sets the focus part.- Parameters:
part
- the focus part- Since:
- 3.2
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setSelection
public void setSelection(ISelection newSelection)
Sets the selection.- Parameters:
newSelection
- the new selection- Since:
- 3.2
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