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/*
*(c) Copyright QNX Software Systems Ltd. 2002.
* All Rights Reserved.
*
*/
package org.eclipse.cdt.debug.internal.ui.views.memory;
import org.eclipse.cdt.debug.internal.ui.CDebugUIPlugin;
import org.eclipse.cdt.debug.internal.ui.ICDebugHelpContextIds;
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.ICDebugUIConstants;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.IMemoryBlockRetrieval;
import org.eclipse.debug.ui.IDebugModelPresentation;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
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.widgets.Composite;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPart;
/**
*
* 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;
/* (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 );
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()
{
}
/* (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 )
{
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#configureToolBar(IToolBarManager)
*/
protected void configureToolBar( IToolBarManager tbm )
{
}
/* (non-Javadoc)
* @see org.eclipse.ui.ISelectionListener#selectionChanged(IWorkbenchPart, ISelection)
*/
public void selectionChanged( IWorkbenchPart part, ISelection 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()
{
getSite().getPage().removeSelectionListener( IDebugUIConstants.ID_DEBUG_VIEW, this );
CDebugUIPlugin.getDefault().getPreferenceStore().removePropertyChangeListener( this );
super.dispose();
}
protected void setViewerInput( IStructuredSelection ssel )
{
IMemoryBlockRetrieval memoryBlockRetrieval = null;
if ( ssel.size() == 1 )
{
Object input = ssel.getFirstElement();
if ( input instanceof IDebugElement )
{
memoryBlockRetrieval = (IMemoryBlockRetrieval)((IDebugElement)input).getDebugTarget();
}
}
Object current = getViewer().getInput();
if ( current == null && memoryBlockRetrieval == null )
{
return;
}
if ( current != null && current.equals( memoryBlockRetrieval ) )
{
return;
}
showViewer();
getViewer().setInput( memoryBlockRetrieval );
}
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 );
}
}
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