HPCDepthView.java

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package edu.rice.cs.hpc.traceviewer.depth;

import java.util.Map;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISourceProvider;
import org.eclipse.ui.ISourceProviderListener;
import org.eclipse.ui.services.ISourceProviderService;

import edu.rice.cs.hpc.traceviewer.services.DataService;
import edu.rice.cs.hpc.traceviewer.spaceTimeData.SpaceTimeDataController;
import edu.rice.cs.hpc.traceviewer.ui.AbstractTimeView;

/*****************************************************
 * 
 * Depth view
 *
 *****************************************************/
public class HPCDepthView extends AbstractTimeView
{
    public static final String ID = "hpcdepthview.view";
    
    Composite master;
    
    int maxDepth;
    
    DepthTimeCanvas depthCanvas;
        
    public void createPartControl(Composite _master)
    {
        master = _master;
        
        setupEverything();
        setListener();
        super.addListener();
    }
    
    private void setupEverything()
    {
        /*************************************************************************
         * Master Composite
         */
        
        master.setLayout(new GridLayout());
        master.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        
        /*************************************************************************
         * Depth View Canvas
         */
        
        depthCanvas = new DepthTimeCanvas(master);
        depthCanvas.setLayout(new GridLayout());
        depthCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        depthCanvas.setVisible(false);      
    }
    
    private void setListener() {
        ISourceProviderService service = (ISourceProviderService)getSite().getService(ISourceProviderService.class);
        ISourceProvider serviceProvider = service.getSourceProvider(DataService.DATA_UPDATE);
        serviceProvider.addSourceProviderListener( new ISourceProviderListener(){

            public void sourceChanged(int sourcePriority, Map sourceValuesByName) { }
            public void sourceChanged(int sourcePriority, String sourceName,
                    Object sourceValue) {
                // eclipse bug: even if we set a very specific source provider, eclipse still
                //  gather event from other source. we then require to put a guard to avoid this.
                if (sourceName.equals(DataService.DATA_UPDATE)) {
                    depthCanvas.refresh();
                }
            }
        });     
    }

    public void updateView(SpaceTimeDataController _stData)
    {
        this.depthCanvas.updateView(_stData);
        depthCanvas.setVisible(true);
    }

    public void setFocus()
    {
        this.depthCanvas.setFocus();
    }

    @Override
    /*
     * (non-Javadoc)
     * @see edu.rice.cs.hpc.traceviewer.ui.IActiveNotification#active(boolean)
     */
    public void active(boolean isActive) 
    {
        depthCanvas.activate(isActive);
    }
}