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org.eclipse.gef
Class SelectionManager

java.lang.Object
  
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
protected	SelectionManager ()           Default Constructor

 

Method Summary
void	appendSelection ( EditPart editpart)           Appends the EditPart to the current selection.
static  SelectionManager	createDefault ()           Creates the default implementation for a selection manager.
void	deselect ( EditPart editpart)           Removes the EditPart 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 ()           Returns null 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.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

SelectionManager

protected SelectionManager()

Default Constructor

Since:

3.2

Method Detail

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 the EditPart to the current selection. The EditPart becomes the new primary selection. Fires selection changed to all ISelectionChangedListeners.

Parameters:

editpart - the EditPart to append

Since:

3.2

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deselect

public void deselect(
EditPart editpart)

Removes the EditPart 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()

Returns null 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 - viewer

selection - selection

notifier - 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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