debug/org.eclipse.cdt.debug.ui/src/org/eclipse/cdt/debug/internal/ui/views/memory/MemoryView.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.memory;

 import org.eclipse.cdt.debug.core.ICMemoryManager;
 import org.eclipse.cdt.debug.core.model.IFormattedMemoryBlock;
 import org.eclipse.cdt.debug.internal.ui.ICDebugHelpContextIds;
 import org.eclipse.cdt.debug.internal.ui.actions.AutoRefreshMemoryAction;
 import org.eclipse.cdt.debug.internal.ui.actions.ClearMemoryAction;
 import org.eclipse.cdt.debug.internal.ui.actions.MemoryActionSelectionGroup;
 import org.eclipse.cdt.debug.internal.ui.actions.MemoryFormatAction;
 import org.eclipse.cdt.debug.internal.ui.actions.MemoryNumberOfColumnAction;
 import org.eclipse.cdt.debug.internal.ui.actions.MemorySizeAction;
 import org.eclipse.cdt.debug.internal.ui.actions.RefreshMemoryAction;
 import org.eclipse.cdt.debug.internal.ui.actions.ShowAsciiAction;
 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.ui.CDebugUIPlugin;
 import org.eclipse.cdt.debug.ui.ICDebugUIConstants;
 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.core.model.IDebugElement;
 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.MenuManager;
 import org.eclipse.jface.action.Separator;
 import org.eclipse.jface.text.ITextOperationTarget;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.PropertyChangeEvent;
 import org.eclipse.jface.viewers.IContentProvider;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.swt.custom.CTabItem;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.ui.ISelectionListener;
 import org.eclipse.ui.IWorkbenchActionConstants;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.texteditor.ITextEditorActionConstants;
 import org.eclipse.ui.texteditor.IUpdate;

 /**
  *
  * This view shows the content of the memory blocks associated
  * with the selected debug target.
  *
  * @since Jul 24, 2002
  */
 public class MemoryView extends AbstractDebugEventHandlerView
 						implements ISelectionListener,
 								   IPropertyChangeListener,
 								   IDebugExceptionHandler
 {
 	private IDebugModelPresentation fModelPresentation = null;
 	private MemoryActionSelectionGroup fMemoryFormatGroup = null;
 	private MemoryActionSelectionGroup fMemorySizeGroup = null;
 	private MemoryActionSelectionGroup fMemoryNumberOfColumnsGroup = null;

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createViewer(Composite)
 	 */
 	protected Viewer createViewer( Composite parent )
 	{
 		CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );
 		final MemoryViewer viewer = new MemoryViewer( parent, this );
 		viewer.setContentProvider( createContentProvider() );
 		viewer.setLabelProvider( getModelPresentation() );

 		getSite().getPage().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
 		setEventHandler( createEventHandler( viewer ) );

 		return viewer;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createActions()
 	 */
 	protected void createActions()
 	{
 		IAction action = null;

 		action = new MemoryViewAction( this, ITextOperationTarget.CUT );
 		action.setText( "Cut" );
 		action.setToolTipText( "Cut" );
 		action.setDescription( "Cut" );
 		setGlobalAction( ITextEditorActionConstants.CUT, (MemoryViewAction)action );

 		action = new MemoryViewAction( this, ITextOperationTarget.COPY );
 		action.setText( "Copy" );
 		action.setToolTipText( "Copy" );
 		action.setDescription( "Copy" );
 		setGlobalAction( ITextEditorActionConstants.COPY, (MemoryViewAction)action );

 		action = new MemoryViewAction( this, ITextOperationTarget.PASTE );
 		action.setText( "Paste" );
 		action.setToolTipText( "Paste" );
 		action.setDescription( "Paste" );
 		setGlobalAction( ITextEditorActionConstants.PASTE, (MemoryViewAction)action );

 		action = new MemoryViewAction( this, ITextOperationTarget.SELECT_ALL );
 		action.setText( "Select All" );
 		action.setToolTipText( "Select All" );
 		action.setDescription( "Select All" );
 		setGlobalAction( ITextEditorActionConstants.SELECT_ALL, (MemoryViewAction)action );

 		action = new RefreshMemoryAction( (MemoryViewer)getViewer() );
 		action.setEnabled( false );
 		setAction( "RefreshMemory", action ); //$NON-NLS-1$
 		add( (RefreshMemoryAction)action );

 		action = new AutoRefreshMemoryAction( (MemoryViewer)getViewer() );
 		action.setEnabled( false );
 		action.setChecked( CDebugUIPlugin.getDefault().getPreferenceStore().getBoolean( ICDebugPreferenceConstants.PREF_MEMORY_AUTO_REFRESH ) );
 		setAction( "AutoRefreshMemory", action ); //$NON-NLS-1$
 		add( (AutoRefreshMemoryAction)action );

 		action = new ClearMemoryAction( (MemoryViewer)getViewer() );
 		action.setEnabled( false );
 		setAction( "ClearMemory", action ); //$NON-NLS-1$
 		add( (ClearMemoryAction)action );

 		action = new ShowAsciiAction( (MemoryViewer)getViewer() );
 		action.setEnabled( false );
 		action.setChecked( CDebugUIPlugin.getDefault().getPreferenceStore().getBoolean( ICDebugPreferenceConstants.PREF_MEMORY_SHOW_ASCII ) );
 		setAction( "ShowAscii", action ); //$NON-NLS-1$
 		add( (ShowAsciiAction)action );

 		fMemoryFormatGroup = new MemoryActionSelectionGroup();
 		createFormatActionGroup( fMemoryFormatGroup );

 		fMemorySizeGroup = new MemoryActionSelectionGroup();
 		createSizeActionGroup( fMemorySizeGroup );

 		fMemoryNumberOfColumnsGroup = new MemoryActionSelectionGroup();
 		createNumberOfColumnsActionGroup( fMemoryNumberOfColumnsGroup );

 		// 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.MEMORY_VIEW;
 	}

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

 		menu.add( new Separator( ICDebugUIConstants.EMPTY_FORMAT_GROUP ) );
 		menu.add( new Separator( ICDebugUIConstants.FORMAT_GROUP ) );

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

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

 		menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "AutoRefreshMemory" ) ); //$NON-NLS-1$
 		menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "RefreshMemory" ) ); //$NON-NLS-1$
 		menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "ClearMemory" ) ); //$NON-NLS-1$

 		MenuManager subMenu = new MenuManager( "Format" );
 		{
 			IAction[] actions = fMemoryFormatGroup.getActions();
 			for ( int i = 0; i < actions.length; ++i )
 			{
 				subMenu.add( actions[i] );
 			}
 		}
 		menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

 		subMenu = new MenuManager( "Memory Unit Size         " );
 		{
 			IAction[] actions = fMemorySizeGroup.getActions();
 			for ( int i = 0; i < actions.length; ++i )
 			{
 				subMenu.add( actions[i] );
 			}
 		}
 		menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

 		subMenu = new MenuManager( "Number Of Columns" );
 		{
 			IAction[] actions = fMemoryNumberOfColumnsGroup.getActions();
 			for ( int i = 0; i < actions.length; ++i )
 			{
 				subMenu.add( actions[i] );
 			}
 		}
 		menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

 		menu.appendToGroup( IDebugUIConstants.RENDER_GROUP, getAction( "ShowAscii" ) ); //$NON-NLS-1$
 	}

 	/* (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.MEMORY_GROUP ) );
 		tbm.add( getAction( "AutoRefreshMemory" ) ); //$NON-NLS-1$
 		tbm.add( getAction( "RefreshMemory" ) ); //$NON-NLS-1$
 		tbm.add( getAction( "ClearMemory" ) ); //$NON-NLS-1$

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

 	/* (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 )
 	{
 		((MemoryViewer)getViewer()).propertyChange( event );
 	}

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

 	/**
 	 * Remove myself as a selection listener and preference change
 	 * listener.
 	 *
 	 * @see IWorkbenchPart#dispose()
 	 */
 	public void dispose()
 	{
 		removeActionGroup( fMemoryFormatGroup );
 		fMemoryFormatGroup.dispose();
 		removeActionGroup( fMemorySizeGroup );
 		fMemorySizeGroup.dispose();
 		removeActionGroup( fMemoryNumberOfColumnsGroup );
 		fMemoryNumberOfColumnsGroup.dispose();

 		remove( (ShowAsciiAction)getAction( "ShowAscii" ) );
 		remove( (ClearMemoryAction)getAction( "ClearMemory" ) );
 		remove( (RefreshMemoryAction)getAction( "RefreshMemory" ) );
 		remove( (AutoRefreshMemoryAction)getAction( "AutoRefreshMemory" ) );

 		getSite().getPage().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
 		CDebugUIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener( this );
 		super.dispose();
 	}

 	protected void setViewerInput( IStructuredSelection ssel )
 	{
 		ICMemoryManager mm = null;
 		if ( ssel != null && ssel.size() == 1 )
 		{
 			Object input = ssel.getFirstElement();
 			if ( input instanceof IDebugElement )
 			{
 				mm = (ICMemoryManager)((IDebugElement)input).getDebugTarget().getAdapter( ICMemoryManager.class );
 			}
 		}

 		Object current = getViewer().getInput();
 		if ( current != null && current.equals( mm ) )
 		{
 			return;
 		}
 		showViewer();
 		getViewer().setInput( mm );
 		updateObjects();
 	}

 	private IContentProvider createContentProvider()
 	{
 		return new MemoryViewContentProvider();
 	}

 	private IDebugModelPresentation getModelPresentation()
 	{
 		if ( fModelPresentation == null )
 		{
 			fModelPresentation = CDebugUIPlugin.getDebugModelPresentation();
 		}
 		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 MemoryViewEventHandler( this );
 	}

 	/**
 	 * 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 );
 		}
 		else
 		{
 			setViewerInput( null );
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.debug.ui.AbstractDebugView#createContextMenu(Control)
 	 */
 	protected void createContextMenu( Control menuControl )
 	{
 		CTabItem[] items = ((MemoryViewer)getViewer()).getTabFolder().getItems();
 		for ( int i = 0; i < items.length; ++i )
 		{
 			super.createContextMenu( ((MemoryControlArea)items[i].getControl()).getMemoryText().getControl() );
 		}
 	}

 	private void createFormatActionGroup( MemoryActionSelectionGroup group )
 	{
 		int[] formats = new int[] { IFormattedMemoryBlock.MEMORY_FORMAT_HEX,
 									IFormattedMemoryBlock.MEMORY_FORMAT_SIGNED_DECIMAL,
 									IFormattedMemoryBlock.MEMORY_FORMAT_UNSIGNED_DECIMAL };
 		for ( int i = 0; i < formats.length; ++i )
 		{
 			MemoryFormatAction action = new MemoryFormatAction( group, (MemoryViewer)getViewer(), formats[i] );
 			action.setEnabled( false );
 			setAction( action.getActionId(), action ); //$NON-NLS-1$
 			add( action );
 			group.addAction( action );
 		}
 	}

 	private void createSizeActionGroup( MemoryActionSelectionGroup group )
 	{
 		int[] ids = new int[] { IFormattedMemoryBlock.MEMORY_SIZE_BYTE,
 								IFormattedMemoryBlock.MEMORY_SIZE_HALF_WORD,
 								IFormattedMemoryBlock.MEMORY_SIZE_WORD,
 								IFormattedMemoryBlock.MEMORY_SIZE_DOUBLE_WORD };
 		for ( int i = 0; i < ids.length; ++i )
 		{
 			MemorySizeAction action = new MemorySizeAction( group, (MemoryViewer)getViewer(), ids[i] );
 			action.setEnabled( false );
 			setAction( action.getActionId(), action ); //$NON-NLS-1$
 			add( action );
 			group.addAction( action );
 		}
 	}

 	private void createNumberOfColumnsActionGroup( MemoryActionSelectionGroup group )
 	{
 		int[] nocs = new int[] { IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_1,
 								 IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_2,
 								 IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_4,
 								 IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_8,
 								 IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_16 };
 		for ( int i = 0; i < nocs.length; ++i )
 		{
 			MemoryNumberOfColumnAction action = new MemoryNumberOfColumnAction( group, (MemoryViewer)getViewer(), nocs[i] );
 			action.setEnabled( false );
 			setAction( action.getActionId(), action ); //$NON-NLS-1$
 			add( action );
 			group.addAction( action );
 		}
 	}

 	private void removeActionGroup(  MemoryActionSelectionGroup group )
 	{
 		IAction[] actions = group.getActions();
 		for ( int i = 0; i < actions.length; ++i )
 		{
 			remove( (IUpdate)actions[i] );
 		}
 	}

 	private void setGlobalAction( String actionId, MemoryViewAction action )
 	{
 		add( action );
 		getViewSite().getActionBars().setGlobalActionHandler( actionId, action );
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
 	 */
 	public Object getAdapter( Class adapter )
 	{
 		if (ITextOperationTarget.class.equals( adapter ) )
 		{
 			return ((MemoryViewer)getViewer()).getTextOperationTarget();
 		}

 		return super.getAdapter(adapter);
 	}
 }
	/*
	*(c) Copyright QNX Software Systems Ltd. 2002.
	* All Rights Reserved.
	*
	*/
	package org.eclipse.cdt.debug.internal.ui.views.memory;

	import org.eclipse.cdt.debug.core.ICMemoryManager;
	import org.eclipse.cdt.debug.core.model.IFormattedMemoryBlock;
	import org.eclipse.cdt.debug.internal.ui.ICDebugHelpContextIds;
	import org.eclipse.cdt.debug.internal.ui.actions.AutoRefreshMemoryAction;
	import org.eclipse.cdt.debug.internal.ui.actions.ClearMemoryAction;
	import org.eclipse.cdt.debug.internal.ui.actions.MemoryActionSelectionGroup;
	import org.eclipse.cdt.debug.internal.ui.actions.MemoryFormatAction;
	import org.eclipse.cdt.debug.internal.ui.actions.MemoryNumberOfColumnAction;
	import org.eclipse.cdt.debug.internal.ui.actions.MemorySizeAction;
	import org.eclipse.cdt.debug.internal.ui.actions.RefreshMemoryAction;
	import org.eclipse.cdt.debug.internal.ui.actions.ShowAsciiAction;
	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.ui.CDebugUIPlugin;
	import org.eclipse.cdt.debug.ui.ICDebugUIConstants;
	import org.eclipse.debug.core.DebugException;
	import org.eclipse.debug.core.model.IDebugElement;
	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.MenuManager;
	import org.eclipse.jface.action.Separator;
	import org.eclipse.jface.text.ITextOperationTarget;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.PropertyChangeEvent;
	import org.eclipse.jface.viewers.IContentProvider;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.swt.custom.CTabItem;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.ui.ISelectionListener;
	import org.eclipse.ui.IWorkbenchActionConstants;
	import org.eclipse.ui.IWorkbenchPart;
	import org.eclipse.ui.texteditor.ITextEditorActionConstants;
	import org.eclipse.ui.texteditor.IUpdate;

	/**
	*
	* This view shows the content of the memory blocks associated
	* with the selected debug target.
	*
	* @since Jul 24, 2002
	*/
	public class MemoryView extends AbstractDebugEventHandlerView
	implements ISelectionListener,
	IPropertyChangeListener,
	IDebugExceptionHandler
	{
	private IDebugModelPresentation fModelPresentation = null;
	private MemoryActionSelectionGroup fMemoryFormatGroup = null;
	private MemoryActionSelectionGroup fMemorySizeGroup = null;
	private MemoryActionSelectionGroup fMemoryNumberOfColumnsGroup = null;

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#createViewer(Composite)
	*/
	protected Viewer createViewer( Composite parent )
	{
	CDebugUIPlugin.getDefault().getPreferenceStore().addPropertyChangeListener( this );
	final MemoryViewer viewer = new MemoryViewer( parent, this );
	viewer.setContentProvider( createContentProvider() );
	viewer.setLabelProvider( getModelPresentation() );

	getSite().getPage().addSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
	setEventHandler( createEventHandler( viewer ) );

	return viewer;
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#createActions()
	*/
	protected void createActions()
	{
	IAction action = null;

	action = new MemoryViewAction( this, ITextOperationTarget.CUT );
	action.setText( "Cut" );
	action.setToolTipText( "Cut" );
	action.setDescription( "Cut" );
	setGlobalAction( ITextEditorActionConstants.CUT, (MemoryViewAction)action );

	action = new MemoryViewAction( this, ITextOperationTarget.COPY );
	action.setText( "Copy" );
	action.setToolTipText( "Copy" );
	action.setDescription( "Copy" );
	setGlobalAction( ITextEditorActionConstants.COPY, (MemoryViewAction)action );

	action = new MemoryViewAction( this, ITextOperationTarget.PASTE );
	action.setText( "Paste" );
	action.setToolTipText( "Paste" );
	action.setDescription( "Paste" );
	setGlobalAction( ITextEditorActionConstants.PASTE, (MemoryViewAction)action );

	action = new MemoryViewAction( this, ITextOperationTarget.SELECT_ALL );
	action.setText( "Select All" );
	action.setToolTipText( "Select All" );
	action.setDescription( "Select All" );
	setGlobalAction( ITextEditorActionConstants.SELECT_ALL, (MemoryViewAction)action );

	action = new RefreshMemoryAction( (MemoryViewer)getViewer() );
	action.setEnabled( false );
	setAction( "RefreshMemory", action ); //$NON-NLS-1$
	add( (RefreshMemoryAction)action );

	action = new AutoRefreshMemoryAction( (MemoryViewer)getViewer() );
	action.setEnabled( false );
	action.setChecked( CDebugUIPlugin.getDefault().getPreferenceStore().getBoolean( ICDebugPreferenceConstants.PREF_MEMORY_AUTO_REFRESH ) );
	setAction( "AutoRefreshMemory", action ); //$NON-NLS-1$
	add( (AutoRefreshMemoryAction)action );

	action = new ClearMemoryAction( (MemoryViewer)getViewer() );
	action.setEnabled( false );
	setAction( "ClearMemory", action ); //$NON-NLS-1$
	add( (ClearMemoryAction)action );

	action = new ShowAsciiAction( (MemoryViewer)getViewer() );
	action.setEnabled( false );
	action.setChecked( CDebugUIPlugin.getDefault().getPreferenceStore().getBoolean( ICDebugPreferenceConstants.PREF_MEMORY_SHOW_ASCII ) );
	setAction( "ShowAscii", action ); //$NON-NLS-1$
	add( (ShowAsciiAction)action );

	fMemoryFormatGroup = new MemoryActionSelectionGroup();
	createFormatActionGroup( fMemoryFormatGroup );

	fMemorySizeGroup = new MemoryActionSelectionGroup();
	createSizeActionGroup( fMemorySizeGroup );

	fMemoryNumberOfColumnsGroup = new MemoryActionSelectionGroup();
	createNumberOfColumnsActionGroup( fMemoryNumberOfColumnsGroup );

	// 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.MEMORY_VIEW;
	}

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

	menu.add( new Separator( ICDebugUIConstants.EMPTY_FORMAT_GROUP ) );
	menu.add( new Separator( ICDebugUIConstants.FORMAT_GROUP ) );

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

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

	menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "AutoRefreshMemory" ) ); //$NON-NLS-1$
	menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "RefreshMemory" ) ); //$NON-NLS-1$
	menu.appendToGroup( ICDebugUIConstants.MEMORY_GROUP, getAction( "ClearMemory" ) ); //$NON-NLS-1$

	MenuManager subMenu = new MenuManager( "Format" );
	{
	IAction[] actions = fMemoryFormatGroup.getActions();
	for ( int i = 0; i < actions.length; ++i )
	{
	subMenu.add( actions[i] );
	}
	}
	menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

	subMenu = new MenuManager( "Memory Unit Size " );
	{
	IAction[] actions = fMemorySizeGroup.getActions();
	for ( int i = 0; i < actions.length; ++i )
	{
	subMenu.add( actions[i] );
	}
	}
	menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

	subMenu = new MenuManager( "Number Of Columns" );
	{
	IAction[] actions = fMemoryNumberOfColumnsGroup.getActions();
	for ( int i = 0; i < actions.length; ++i )
	{
	subMenu.add( actions[i] );
	}
	}
	menu.appendToGroup( ICDebugUIConstants.FORMAT_GROUP, subMenu );

	menu.appendToGroup( IDebugUIConstants.RENDER_GROUP, getAction( "ShowAscii" ) ); //$NON-NLS-1$
	}

	/* (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.MEMORY_GROUP ) );
	tbm.add( getAction( "AutoRefreshMemory" ) ); //$NON-NLS-1$
	tbm.add( getAction( "RefreshMemory" ) ); //$NON-NLS-1$
	tbm.add( getAction( "ClearMemory" ) ); //$NON-NLS-1$

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

	/* (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 )
	{
	((MemoryViewer)getViewer()).propertyChange( event );
	}

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

	/**
	* Remove myself as a selection listener and preference change
	* listener.
	*
	* @see IWorkbenchPart#dispose()
	*/
	public void dispose()
	{
	removeActionGroup( fMemoryFormatGroup );
	fMemoryFormatGroup.dispose();
	removeActionGroup( fMemorySizeGroup );
	fMemorySizeGroup.dispose();
	removeActionGroup( fMemoryNumberOfColumnsGroup );
	fMemoryNumberOfColumnsGroup.dispose();

	remove( (ShowAsciiAction)getAction( "ShowAscii" ) );
	remove( (ClearMemoryAction)getAction( "ClearMemory" ) );
	remove( (RefreshMemoryAction)getAction( "RefreshMemory" ) );
	remove( (AutoRefreshMemoryAction)getAction( "AutoRefreshMemory" ) );

	getSite().getPage().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
	CDebugUIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener( this );
	super.dispose();
	}

	protected void setViewerInput( IStructuredSelection ssel )
	{
	ICMemoryManager mm = null;
	if ( ssel != null && ssel.size() == 1 )
	{
	Object input = ssel.getFirstElement();
	if ( input instanceof IDebugElement )
	{
	mm = (ICMemoryManager)((IDebugElement)input).getDebugTarget().getAdapter( ICMemoryManager.class );
	}
	}

	Object current = getViewer().getInput();
	if ( current != null && current.equals( mm ) )
	{
	return;
	}
	showViewer();
	getViewer().setInput( mm );
	updateObjects();
	}

	private IContentProvider createContentProvider()
	{
	return new MemoryViewContentProvider();
	}

	private IDebugModelPresentation getModelPresentation()
	{
	if ( fModelPresentation == null )
	{
	fModelPresentation = CDebugUIPlugin.getDebugModelPresentation();
	}
	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 MemoryViewEventHandler( this );
	}

	/**
	* 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 );
	}
	else
	{
	setViewerInput( null );
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.debug.ui.AbstractDebugView#createContextMenu(Control)
	*/
	protected void createContextMenu( Control menuControl )
	{
	CTabItem[] items = ((MemoryViewer)getViewer()).getTabFolder().getItems();
	for ( int i = 0; i < items.length; ++i )
	{
	super.createContextMenu( ((MemoryControlArea)items[i].getControl()).getMemoryText().getControl() );
	}
	}

	private void createFormatActionGroup( MemoryActionSelectionGroup group )
	{
	int[] formats = new int[] { IFormattedMemoryBlock.MEMORY_FORMAT_HEX,
	IFormattedMemoryBlock.MEMORY_FORMAT_SIGNED_DECIMAL,
	IFormattedMemoryBlock.MEMORY_FORMAT_UNSIGNED_DECIMAL };
	for ( int i = 0; i < formats.length; ++i )
	{
	MemoryFormatAction action = new MemoryFormatAction( group, (MemoryViewer)getViewer(), formats[i] );
	action.setEnabled( false );
	setAction( action.getActionId(), action ); //$NON-NLS-1$
	add( action );
	group.addAction( action );
	}
	}

	private void createSizeActionGroup( MemoryActionSelectionGroup group )
	{
	int[] ids = new int[] { IFormattedMemoryBlock.MEMORY_SIZE_BYTE,
	IFormattedMemoryBlock.MEMORY_SIZE_HALF_WORD,
	IFormattedMemoryBlock.MEMORY_SIZE_WORD,
	IFormattedMemoryBlock.MEMORY_SIZE_DOUBLE_WORD };
	for ( int i = 0; i < ids.length; ++i )
	{
	MemorySizeAction action = new MemorySizeAction( group, (MemoryViewer)getViewer(), ids[i] );
	action.setEnabled( false );
	setAction( action.getActionId(), action ); //$NON-NLS-1$
	add( action );
	group.addAction( action );
	}
	}

	private void createNumberOfColumnsActionGroup( MemoryActionSelectionGroup group )
	{
	int[] nocs = new int[] { IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_1,
	IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_2,
	IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_4,
	IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_8,
	IFormattedMemoryBlock.MEMORY_NUMBER_OF_COLUMNS_16 };
	for ( int i = 0; i < nocs.length; ++i )
	{
	MemoryNumberOfColumnAction action = new MemoryNumberOfColumnAction( group, (MemoryViewer)getViewer(), nocs[i] );
	action.setEnabled( false );
	setAction( action.getActionId(), action ); //$NON-NLS-1$
	add( action );
	group.addAction( action );
	}
	}

	private void removeActionGroup( MemoryActionSelectionGroup group )
	{
	IAction[] actions = group.getActions();
	for ( int i = 0; i < actions.length; ++i )
	{
	remove( (IUpdate)actions[i] );
	}
	}

	private void setGlobalAction( String actionId, MemoryViewAction action )
	{
	add( action );
	getViewSite().getActionBars().setGlobalActionHandler( actionId, action );
	}

	/* (non-Javadoc)
	* @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	*/
	public Object getAdapter( Class adapter )
	{
	if (ITextOperationTarget.class.equals( adapter ) )
	{
	return ((MemoryViewer)getViewer()).getTextOperationTarget();
	}

	return super.getAdapter(adapter);
	}
	}