debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/registers/RegistersView.java - cdt/org.eclipse.cdt - Git at Google

 /*
  *(c) Copyright QNX Software Systems Ltd. 2002.
  * All Rights Reserved.
  *
  */

 package org.eclipse.cdt.debug.internal.ui.views.registers;

 import java.util.HashMap;

 import org.eclipse.cdt.debug.core.ICRegisterManager;
 import org.eclipse.cdt.debug.internal.ui.CDebugImages;
 import org.eclipse.cdt.debug.internal.ui.ICDebugHelpContextIds;
 import org.eclipse.cdt.debug.internal.ui.actions.AutoRefreshAction;
 import org.eclipse.cdt.debug.internal.ui.actions.ChangeRegisterValueAction;
 import org.eclipse.cdt.debug.internal.ui.actions.RefreshAction;
 import org.eclipse.cdt.debug.internal.ui.actions.ShowRegisterTypesAction;
 import org.eclipse.cdt.debug.internal.ui.preferences.ICDebugPreferenceConstants;
 import org.eclipse.cdt.debug.internal.ui.views.AbstractDebugEventHandler;
 import org.eclipse.cdt.debug.internal.ui.views.AbstractDebugEventHandlerView;
 import org.eclipse.cdt.debug.internal.ui.views.IDebugExceptionHandler;
 import org.eclipse.cdt.debug.internal.ui.views.ViewerState;
 import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
 import org.eclipse.cdt.debug.ui.ICDebugUIConstants;
 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.core.model.IRegister;
 import org.eclipse.debug.core.model.IStackFrame;
 import org.eclipse.debug.ui.DebugUITools;
 import org.eclipse.debug.ui.IDebugModelPresentation;
 import org.eclipse.debug.ui.IDebugUIConstants;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.action.IToolBarManager;
 import org.eclipse.jface.action.Separator;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.PropertyChangeEvent;
 import org.eclipse.jface.viewers.IBaseLabelProvider;
 import org.eclipse.jface.viewers.IColorProvider;
 import org.eclipse.jface.viewers.IContentProvider;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.ISelectionListener;
 import org.eclipse.ui.IWorkbenchActionConstants;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.help.WorkbenchHelp;

 /**
  *
  * This view shows registers and their values for a particular stack frame.
  *
  * @since Jul 23, 2002
  */
 public class RegistersView extends AbstractDebugEventHandlerView
 						   implements ISelectionListener,
 									  IPropertyChangeListener,
 									  IDebugExceptionHandler
 {
 	/**
 	 * A label provider that delegates to a debug model
 	 * presentation and adds coloring to registers to
 	 * reflect their changed state
 	 */
 	class VariablesViewLabelProvider implements ILabelProvider, IColorProvider
 	{
 		private IDebugModelPresentation fPresentation;

 		public VariablesViewLabelProvider( IDebugModelPresentation presentation )
 		{
 			fPresentation = presentation;
 		}

 		public IDebugModelPresentation getPresentation()
 		{
 			return fPresentation;
 		}

 		public Image getImage( Object element )
 		{
 			return fPresentation.getImage( element );
 		}
 		public String getText( Object element )
 		{
 			return fPresentation.getText( element );
 		}
 		public void addListener( ILabelProviderListener listener )
 		{
 			fPresentation.addListener( listener );
 		}
 		public void dispose()
 		{
 			fPresentation.dispose();
 		}
 		public boolean isLabelProperty( Object element, String property )
 		{
 			return fPresentation.isLabelProperty( element, property );
 		}
 		public void removeListener( ILabelProviderListener listener )
 		{
 			fPresentation.removeListener( listener );
 		}

 		public Color getForeground( Object element )
 		{
 			if ( element instanceof IRegister )
 			{
 				IRegister register = (IRegister)element;
 				try
 				{
 					if ( register.hasValueChanged() )
 					{
 						return CDebugUIPlugin.getPreferenceColor( ICDebugPreferenceConstants.CHANGED_REGISTER_RGB );
 					}
 				}
 				catch( DebugException e )
 				{
 					CDebugUIPlugin.log( e );
 				}
 			}
 			return null;
 		}

 		public Color getBackground( Object element )
 		{
 			return null;
 		}
 	}

 	/**
 	 * The model presentation used as the label provider for the tree viewer.
 	 */
 	private IDebugModelPresentation fModelPresentation;

 	protected static final String VARIABLES_SELECT_ALL_ACTION = SELECT_ALL_ACTION + ".Registers"; //$NON-NLS-1$

 	/**
 	 * A map of register managers to <code>ViewerState</code>s.
 	 * Used to restore the expanded state of the registers view on
 	 * re-selection of the register manager. The cache is cleared on
 	 * a frame by frame basis when a thread/target is terminated.
 	 */
 	private HashMap fExpandedRegisters = new HashMap( 10 );

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createViewer(Composite)
 	 */
 	protected Viewer createViewer( Composite parent )
 	{
 		CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );

 		// add tree viewer
 		final TreeViewer vv = new RegistersViewer( parent, SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL );
 		vv.setContentProvider( createContentProvider() );
 		vv.setLabelProvider( new VariablesViewLabelProvider( getModelPresentation() ) );
 		vv.setUseHashlookup( true );
 		setAction( SELECT_ALL_ACTION, getAction( VARIABLES_SELECT_ALL_ACTION ) );
 		getViewSite().getActionBars().updateActionBars();

 		// listen to selection in debug view
 		getSite().getPage().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
 		setEventHandler( createEventHandler( vv ) );

 		return vv;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createActions()
 	 */
 	protected void createActions()
 	{
 		IAction action = new ShowRegisterTypesAction( this );
 		setAction( "ShowTypeNames", action ); //$NON-NLS-1$

 		action = new ChangeRegisterValueAction( getViewer() );
 		action.setEnabled( false );
 		setAction( "ChangeRegisterValue", action ); //$NON-NLS-1$
 		setAction( DOUBLE_CLICK_ACTION, action );

 		action = new AutoRefreshAction( getViewer(), "Auto-Refresh" );
 		CDebugImages.setLocalImageDescriptors( action, CDebugImages.IMG_LCL_AUTO_REFRESH );
 		action.setDescription( "Automatically Refresh Registers View" );
 		action.setToolTipText( "Auto-Refresh" );
 		WorkbenchHelp.setHelp( action, ICDebugHelpContextIds.AUTO_REFRESH_REGISTERS_ACTION );
 		action.setEnabled( false );
 		setAction( "AutoRefresh", action ); //$NON-NLS-1$
 		add( (AutoRefreshAction)action );

 		action = new RefreshAction( getViewer(), "Refresh" );
 		CDebugImages.setLocalImageDescriptors( action, CDebugImages.IMG_LCL_REFRESH );
 		action.setDescription( "Refresh Registers View" );
 		action.setToolTipText( "Refresh" );
 		WorkbenchHelp.setHelp( action, ICDebugHelpContextIds.REFRESH_REGISTERS_ACTION );
 		action.setEnabled( false );
 		setAction( "Refresh", action ); //$NON-NLS-1$
 		add( (RefreshAction)action );

 		// set initial content here, as viewer has to be set
 		setInitialContent();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#getHelpContextId()
 	 */
 	protected String getHelpContextId()
 	{
 		return ICDebugHelpContextIds.REGISTERS_VIEW;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#fillContextMenu(IMenuManager)
 	 */
 	protected void fillContextMenu( IMenuManager menu )
 	{
 		menu.add( new Separator( ICDebugUIConstants.EMPTY_REGISTER_GROUP ) );
 		menu.add( new Separator( ICDebugUIConstants.REGISTER_GROUP ) );

 		menu.add( new Separator( IDebugUIConstants.EMPTY_RENDER_GROUP ) );
 		menu.add( new Separator( IDebugUIConstants.RENDER_GROUP ) );

 		menu.add( new Separator( ICDebugUIConstants.EMPTY_REFRESH_GROUP ) );
 		menu.add( new Separator( ICDebugUIConstants.REFRESH_GROUP ) );

 		menu.add( new Separator( IWorkbenchActionConstants.MB_ADDITIONS ) );

 		menu.appendToGroup( ICDebugUIConstants.REGISTER_GROUP, getAction( "ChangeRegisterValue" ) ); //$NON-NLS-1$
 //		menu.appendToGroup( IDebugUIConstants.RENDER_GROUP, getAction( "ShowTypeNames" ) ); //$NON-NLS-1$
 		menu.appendToGroup( ICDebugUIConstants.REFRESH_GROUP, getAction( "AutoRefresh" ) ); //$NON-NLS-1$
 		menu.appendToGroup( ICDebugUIConstants.REFRESH_GROUP, getAction( "Refresh" ) ); //$NON-NLS-1$
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#configureToolBar(IToolBarManager)
 	 */
 	protected void configureToolBar( IToolBarManager tbm )
 	{
 		tbm.add( new Separator( this.getClass().getName() ) );

 		tbm.add( new Separator( ICDebugUIConstants.REFRESH_GROUP ) );
 		tbm.add( getAction( "AutoRefresh" ) ); //$NON-NLS-1$
 		tbm.add( getAction( "Refresh" ) ); //$NON-NLS-1$

 		tbm.add( new Separator( IDebugUIConstants.RENDER_GROUP ) );
 		tbm.add( getAction( "ShowTypeNames" ) ); //$NON-NLS-1$
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.ui.ISelectionListener#selectionChanged(IWorkbenchPart, ISelection)
 	 */
 	public void selectionChanged( IWorkbenchPart part, ISelection selection )
 	{
 		if ( selection instanceof IStructuredSelection )
 		{
 			setViewerInput( (IStructuredSelection)selection );
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(PropertyChangeEvent)
 	 */
 	public void propertyChange( PropertyChangeEvent event )
 	{
 		String propertyName= event.getProperty();
 		if ( propertyName.equals( ICDebugPreferenceConstants.CHANGED_REGISTER_RGB ) )
 		{
 			getEventHandler().refresh();
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.cdt.debug.internal.ui.views.IDebugExceptionHandler#handleException(DebugException)
 	 */
 	public void handleException( DebugException e )
 	{
 		showMessage( e.getMessage() );
 	}

 	/**
 	 * Remove myself as a selection listener
 	 * and preference change listener.
 	 *
 	 * @see IWorkbenchPart#dispose()
 	 */
 	public void dispose()
 	{
 		fModelPresentation.dispose();
 		getSite().getPage().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
 		CDebugUIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener( this );
 		super.dispose();
 	}

 	/**
 	 * Creates this view's content provider.
 	 *
 	 * @return a content provider
 	 */
 	protected IContentProvider createContentProvider()
 	{
 		RegistersViewContentProvider cp = new RegistersViewContentProvider();
 		cp.setExceptionHandler( this );
 		return cp;
 	}

 	protected IDebugModelPresentation getModelPresentation()
 	{
 		if ( fModelPresentation == null )
 		{
 			fModelPresentation = DebugUITools.newDebugModelPresentation();
 		}
 		return fModelPresentation;
 	}

 	/**
 	 * Creates this view's event handler.
 	 *
 	 * @param viewer the viewer associated with this view
 	 * @return an event handler
 	 */
 	protected AbstractDebugEventHandler createEventHandler( Viewer viewer )
 	{
 		return new RegistersViewEventHandler( this );
 	}

 	protected void setViewerInput( IStructuredSelection ssel )
 	{
 		ICRegisterManager rm = null;
 		if ( ssel.size() == 1 && ssel.getFirstElement() instanceof IStackFrame )
 		{
 			rm = (ICRegisterManager)((IStackFrame)ssel.getFirstElement()).getDebugTarget().getAdapter( ICRegisterManager.class );
 		}

 		if ( getViewer() == null )
 		{
 			return;
 		}

 		Object current = getViewer().getInput();
 		if ( current == null && rm == null )
 		{
 			return;
 		}

 		if ( current != null && current.equals( rm ) )
 		{
 			return;
 		}

 		if ( current != null )
 		{
 			// save state
 			ViewerState state = new ViewerState( getRegistersViewer() );
 			fExpandedRegisters.put( current, state );
 		}

 		showViewer();
 		getViewer().setInput( rm );

 		// restore state
 		if ( rm != null )
 		{
 			ViewerState state = (ViewerState)fExpandedRegisters.get( rm );
 			if ( state != null )
 			{
 				state.restoreState( getRegistersViewer() );
 			}
 		}

 		updateObjects();
 	}

 	/**
 	 * Initializes the viewer input on creation
 	 */
 	protected void setInitialContent()
 	{
 		ISelection selection =
 			getSite().getPage().getSelection( IDebugUIConstants.ID_DEBUG_VIEW );
 		if ( selection instanceof IStructuredSelection && !selection.isEmpty() )
 		{
 			setViewerInput( (IStructuredSelection)selection );
 		}
 	}

 	protected RegistersViewer getRegistersViewer()
 	{
 		return (RegistersViewer)getViewer();
 	}

 	protected void clearExpandedRegisters( ICRegisterManager rm )
 	{
 		fExpandedRegisters.remove( rm );
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
 	 */
 	public Object getAdapter( Class adapter )
 	{
 		if ( IDebugModelPresentation.class.equals( adapter ) )
 		{
 			IBaseLabelProvider labelProvider = getStructuredViewer().getLabelProvider();
 			if ( labelProvider instanceof VariablesViewLabelProvider )
 			{
 				return ((VariablesViewLabelProvider)labelProvider).getPresentation();
 			}
 		}
 		return super.getAdapter( adapter );
 	}

 }
	/*
	*(c) Copyright QNX Software Systems Ltd. 2002.
	* All Rights Reserved.
	*
	*/

	package org.eclipse.cdt.debug.internal.ui.views.registers;

	import java.util.HashMap;

	import org.eclipse.cdt.debug.core.ICRegisterManager;
	import org.eclipse.cdt.debug.internal.ui.CDebugImages;
	import org.eclipse.cdt.debug.internal.ui.ICDebugHelpContextIds;
	import org.eclipse.cdt.debug.internal.ui.actions.AutoRefreshAction;
	import org.eclipse.cdt.debug.internal.ui.actions.ChangeRegisterValueAction;
	import org.eclipse.cdt.debug.internal.ui.actions.RefreshAction;
	import org.eclipse.cdt.debug.internal.ui.actions.ShowRegisterTypesAction;
	import org.eclipse.cdt.debug.internal.ui.preferences.ICDebugPreferenceConstants;
	import org.eclipse.cdt.debug.internal.ui.views.AbstractDebugEventHandler;
	import org.eclipse.cdt.debug.internal.ui.views.AbstractDebugEventHandlerView;
	import org.eclipse.cdt.debug.internal.ui.views.IDebugExceptionHandler;
	import org.eclipse.cdt.debug.internal.ui.views.ViewerState;
	import org.eclipse.cdt.debug.ui.CDebugUIPlugin;
	import org.eclipse.cdt.debug.ui.ICDebugUIConstants;
	import org.eclipse.debug.core.DebugException;
	import org.eclipse.debug.core.model.IRegister;
	import org.eclipse.debug.core.model.IStackFrame;
	import org.eclipse.debug.ui.DebugUITools;
	import org.eclipse.debug.ui.IDebugModelPresentation;
	import org.eclipse.debug.ui.IDebugUIConstants;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.action.IMenuManager;
	import org.eclipse.jface.action.IToolBarManager;
	import org.eclipse.jface.action.Separator;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.PropertyChangeEvent;
	import org.eclipse.jface.viewers.IBaseLabelProvider;
	import org.eclipse.jface.viewers.IColorProvider;
	import org.eclipse.jface.viewers.IContentProvider;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.ui.ISelectionListener;
	import org.eclipse.ui.IWorkbenchActionConstants;
	import org.eclipse.ui.IWorkbenchPart;
	import org.eclipse.ui.help.WorkbenchHelp;

	/**
	*
	* This view shows registers and their values for a particular stack frame.
	*
	* @since Jul 23, 2002
	*/
	public class RegistersView extends AbstractDebugEventHandlerView
	implements ISelectionListener,
	IPropertyChangeListener,
	IDebugExceptionHandler
	{
	/**
	* A label provider that delegates to a debug model
	* presentation and adds coloring to registers to
	* reflect their changed state
	*/
	class VariablesViewLabelProvider implements ILabelProvider, IColorProvider
	{
	private IDebugModelPresentation fPresentation;

	public VariablesViewLabelProvider( IDebugModelPresentation presentation )
	{
	fPresentation = presentation;
	}

	public IDebugModelPresentation getPresentation()
	{
	return fPresentation;
	}

	public Image getImage( Object element )
	{
	return fPresentation.getImage( element );
	}
	public String getText( Object element )
	{
	return fPresentation.getText( element );
	}
	public void addListener( ILabelProviderListener listener )
	{
	fPresentation.addListener( listener );
	}
	public void dispose()
	{
	fPresentation.dispose();
	}
	public boolean isLabelProperty( Object element, String property )
	{
	return fPresentation.isLabelProperty( element, property );
	}
	public void removeListener( ILabelProviderListener listener )
	{
	fPresentation.removeListener( listener );
	}

	public Color getForeground( Object element )
	{
	if ( element instanceof IRegister )
	{
	IRegister register = (IRegister)element;
	try
	{
	if ( register.hasValueChanged() )
	{
	return CDebugUIPlugin.getPreferenceColor( ICDebugPreferenceConstants.CHANGED_REGISTER_RGB );
	}
	}
	catch( DebugException e )
	{
	CDebugUIPlugin.log( e );
	}
	}
	return null;
	}

	public Color getBackground( Object element )
	{
	return null;
	}
	}

	/**
	* The model presentation used as the label provider for the tree viewer.
	*/
	private IDebugModelPresentation fModelPresentation;

	protected static final String VARIABLES_SELECT_ALL_ACTION = SELECT_ALL_ACTION + ".Registers"; //$NON-NLS-1$

	/**
	* A map of register managers to <code>ViewerState</code>s.
	* Used to restore the expanded state of the registers view on
	* re-selection of the register manager. The cache is cleared on
	* a frame by frame basis when a thread/target is terminated.
	*/
	private HashMap fExpandedRegisters = new HashMap( 10 );

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#createViewer(Composite)
	*/
	protected Viewer createViewer( Composite parent )
	{
	CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );

	// add tree viewer
	final TreeViewer vv = new RegistersViewer( parent, SWT.MULTI \| SWT.V_SCROLL \| SWT.H_SCROLL );
	vv.setContentProvider( createContentProvider() );
	vv.setLabelProvider( new VariablesViewLabelProvider( getModelPresentation() ) );
	vv.setUseHashlookup( true );
	setAction( SELECT_ALL_ACTION, getAction( VARIABLES_SELECT_ALL_ACTION ) );
	getViewSite().getActionBars().updateActionBars();

	// listen to selection in debug view
	getSite().getPage().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
	setEventHandler( createEventHandler( vv ) );

	return vv;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#createActions()
	*/
	protected void createActions()
	{
	IAction action = new ShowRegisterTypesAction( this );
	setAction( "ShowTypeNames", action ); //$NON-NLS-1$

	action = new ChangeRegisterValueAction( getViewer() );
	action.setEnabled( false );
	setAction( "ChangeRegisterValue", action ); //$NON-NLS-1$
	setAction( DOUBLE_CLICK_ACTION, action );

	action = new AutoRefreshAction( getViewer(), "Auto-Refresh" );
	CDebugImages.setLocalImageDescriptors( action, CDebugImages.IMG_LCL_AUTO_REFRESH );
	action.setDescription( "Automatically Refresh Registers View" );
	action.setToolTipText( "Auto-Refresh" );
	WorkbenchHelp.setHelp( action, ICDebugHelpContextIds.AUTO_REFRESH_REGISTERS_ACTION );
	action.setEnabled( false );
	setAction( "AutoRefresh", action ); //$NON-NLS-1$
	add( (AutoRefreshAction)action );

	action = new RefreshAction( getViewer(), "Refresh" );
	CDebugImages.setLocalImageDescriptors( action, CDebugImages.IMG_LCL_REFRESH );
	action.setDescription( "Refresh Registers View" );
	action.setToolTipText( "Refresh" );
	WorkbenchHelp.setHelp( action, ICDebugHelpContextIds.REFRESH_REGISTERS_ACTION );
	action.setEnabled( false );
	setAction( "Refresh", action ); //$NON-NLS-1$
	add( (RefreshAction)action );

	// set initial content here, as viewer has to be set
	setInitialContent();
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#getHelpContextId()
	*/
	protected String getHelpContextId()
	{
	return ICDebugHelpContextIds.REGISTERS_VIEW;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#fillContextMenu(IMenuManager)
	*/
	protected void fillContextMenu( IMenuManager menu )
	{
	menu.add( new Separator( ICDebugUIConstants.EMPTY_REGISTER_GROUP ) );
	menu.add( new Separator( ICDebugUIConstants.REGISTER_GROUP ) );

	menu.add( new Separator( IDebugUIConstants.EMPTY_RENDER_GROUP ) );
	menu.add( new Separator( IDebugUIConstants.RENDER_GROUP ) );

	menu.add( new Separator( ICDebugUIConstants.EMPTY_REFRESH_GROUP ) );
	menu.add( new Separator( ICDebugUIConstants.REFRESH_GROUP ) );

	menu.add( new Separator( IWorkbenchActionConstants.MB_ADDITIONS ) );

	menu.appendToGroup( ICDebugUIConstants.REGISTER_GROUP, getAction( "ChangeRegisterValue" ) ); //$NON-NLS-1$
	// menu.appendToGroup( IDebugUIConstants.RENDER_GROUP, getAction( "ShowTypeNames" ) ); //$NON-NLS-1$
	menu.appendToGroup( ICDebugUIConstants.REFRESH_GROUP, getAction( "AutoRefresh" ) ); //$NON-NLS-1$
	menu.appendToGroup( ICDebugUIConstants.REFRESH_GROUP, getAction( "Refresh" ) ); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#configureToolBar(IToolBarManager)
	*/
	protected void configureToolBar( IToolBarManager tbm )
	{
	tbm.add( new Separator( this.getClass().getName() ) );

	tbm.add( new Separator( ICDebugUIConstants.REFRESH_GROUP ) );
	tbm.add( getAction( "AutoRefresh" ) ); //$NON-NLS-1$
	tbm.add( getAction( "Refresh" ) ); //$NON-NLS-1$

	tbm.add( new Separator( IDebugUIConstants.RENDER_GROUP ) );
	tbm.add( getAction( "ShowTypeNames" ) ); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	* @see org.eclipse.ui.ISelectionListener#selectionChanged(IWorkbenchPart, ISelection)
	*/
	public void selectionChanged( IWorkbenchPart part, ISelection selection )
	{
	if ( selection instanceof IStructuredSelection )
	{
	setViewerInput( (IStructuredSelection)selection );
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(PropertyChangeEvent)
	*/
	public void propertyChange( PropertyChangeEvent event )
	{
	String propertyName= event.getProperty();
	if ( propertyName.equals( ICDebugPreferenceConstants.CHANGED_REGISTER_RGB ) )
	{
	getEventHandler().refresh();
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.cdt.debug.internal.ui.views.IDebugExceptionHandler#handleException(DebugException)
	*/
	public void handleException( DebugException e )
	{
	showMessage( e.getMessage() );
	}

	/**
	* Remove myself as a selection listener
	* and preference change listener.
	*
	* @see IWorkbenchPart#dispose()
	*/
	public void dispose()
	{
	fModelPresentation.dispose();
	getSite().getPage().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
	CDebugUIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener( this );
	super.dispose();
	}

	/**
	* Creates this view's content provider.
	*
	* @return a content provider
	*/
	protected IContentProvider createContentProvider()
	{
	RegistersViewContentProvider cp = new RegistersViewContentProvider();
	cp.setExceptionHandler( this );
	return cp;
	}

	protected IDebugModelPresentation getModelPresentation()
	{
	if ( fModelPresentation == null )
	{
	fModelPresentation = DebugUITools.newDebugModelPresentation();
	}
	return fModelPresentation;
	}

	/**
	* Creates this view's event handler.
	*
	* @param viewer the viewer associated with this view
	* @return an event handler
	*/
	protected AbstractDebugEventHandler createEventHandler( Viewer viewer )
	{
	return new RegistersViewEventHandler( this );
	}

	protected void setViewerInput( IStructuredSelection ssel )
	{
	ICRegisterManager rm = null;
	if ( ssel.size() == 1 && ssel.getFirstElement() instanceof IStackFrame )
	{
	rm = (ICRegisterManager)((IStackFrame)ssel.getFirstElement()).getDebugTarget().getAdapter( ICRegisterManager.class );
	}

	if ( getViewer() == null )
	{
	return;
	}

	Object current = getViewer().getInput();
	if ( current == null && rm == null )
	{
	return;
	}

	if ( current != null && current.equals( rm ) )
	{
	return;
	}

	if ( current != null )
	{
	// save state
	ViewerState state = new ViewerState( getRegistersViewer() );
	fExpandedRegisters.put( current, state );
	}

	showViewer();
	getViewer().setInput( rm );

	// restore state
	if ( rm != null )
	{
	ViewerState state = (ViewerState)fExpandedRegisters.get( rm );
	if ( state != null )
	{
	state.restoreState( getRegistersViewer() );
	}
	}

	updateObjects();
	}

	/**
	* Initializes the viewer input on creation
	*/
	protected void setInitialContent()
	{
	ISelection selection =
	getSite().getPage().getSelection( IDebugUIConstants.ID_DEBUG_VIEW );
	if ( selection instanceof IStructuredSelection && !selection.isEmpty() )
	{
	setViewerInput( (IStructuredSelection)selection );
	}
	}

	protected RegistersViewer getRegistersViewer()
	{
	return (RegistersViewer)getViewer();
	}

	protected void clearExpandedRegisters( ICRegisterManager rm )
	{
	fExpandedRegisters.remove( rm );
	}

	/* (non-Javadoc)
	* @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	*/
	public Object getAdapter( Class adapter )
	{
	if ( IDebugModelPresentation.class.equals( adapter ) )
	{
	IBaseLabelProvider labelProvider = getStructuredViewer().getLabelProvider();
	if ( labelProvider instanceof VariablesViewLabelProvider )
	{
	return ((VariablesViewLabelProvider)labelProvider).getPresentation();
	}
	}
	return super.getAdapter( adapter );
	}

	}