Examples of org.eclipse.ui.IWorkbench

org.eclipse.ui.IWorkbench
A workbench is the root object for the Eclipse Platform user interface.
A workbench has one or more main windows which present to the end user information based on some underlying model, typically on resources in an underlying workspace. A workbench usually starts with a single open window, and automatically closes when its last window closes.

Each workbench window has a collection of pages; the active page is the one that is being presented to the end user; at most one page is active in a window at a time.

Each workbench page has a collection of workbench parts, of which there are two kinds: views and editors. A page's parts are arranged (tiled or stacked) for presentation on the screen. The arrangement is not fixed; the user can arrange the parts as they see fit. A perspective is a template for a page, capturing a collection of parts and their arrangement.

The platform creates a workbench when the workbench plug-in is activated; since this happens at most once during the life of the running platform, there is only one workbench instance. Due to its singular nature, it is commonly referred to as the workbench.

The workbench supports a few {@link IServiceLocator services} by default. Ifthese services are used to allocate resources, it is important to remember to clean up those resources after you are done with them. Otherwise, the resources will exist until the workbench shuts down. The supported services are:
- {@link IBindingService}
- {@link ICommandService}
- {@link IContextService}
- {@link IHandlerService}
This interface is not intended to be implemented by clients.
@see org.eclipse.ui.PlatformUI#getWorkbench

import org.opengis.referencing.crs.CoordinateReferenceSystem;


public class RasterTutorialHandler extends AbstractHandler {


    public Object execute( ExecutionEvent event ) throws ExecutionException {
        IWorkbench workbench = PlatformUI.getWorkbench();
        
        Shell shell = workbench.getActiveWorkbenchWindow().getShell();
        FileDialog dialog = new FileDialog( shell, SWT.OPEN );
        dialog.setFilterExtensions(new String[]{"*.jpeg;*.jpg","*.png"});
        String filename = dialog.open();
        if( filename == null ) {
            return null;

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    /**
     * Gets the Area of Interest workbench service
     * @return
     */
    public static IAOIService getAOIService() {
        IWorkbench workbench = PlatformUI.getWorkbench();
        return (IAOIService) workbench.getService(IAOIService.class);
    }

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     * Note: This method is called by the platform; it is not intended to be called directly by
     * clients.
     * </p>
     */
    public void stop() {
        final IWorkbench workbench = PlatformUI.getWorkbench();
        if (workbench == null) {
            return;
        }
        final Display display = workbench.getDisplay();
        display.syncExec(new Runnable(){
            public void run() {
                if (!display.isDisposed()) {
                    workbench.close();
                }
            }
        });
    };

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        }
    }


    /** Access the IBookmarkService for the current workbench */
    public static IBookmarkService getBookmarkService() {
        IWorkbench workbench = PlatformUI.getWorkbench();
        IBookmarkService bookmarkService = (IBookmarkService) workbench
                .getService(IBookmarkService.class);
        return bookmarkService;
    }

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     * 
     * @see org.eclipse.ui.IStartup#earlyStartup()
     */
    @Override
    public void earlyStartup() {
        IWorkbench wb = PlatformUI.getWorkbench();
        // IWorkbenchWindow win = wb.getActiveWorkbenchWindow();
        IWorkbenchWindow[] winArray = wb.getWorkbenchWindows();
        final IWorkbenchPage page = winArray[0].getActivePage();
        // IWorkbenchPage page = win.getActivePage();
        final IViewReference viewRef = page.findViewReference(MergeView.ID);
        // If there is an opened MergeView then close it!
        if (viewRef != null) {

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   * @see org.eclipse.equinox.app.IApplication#stop()
   */
  public void stop() {
    if (!PlatformUI.isWorkbenchRunning())
      return;
    final IWorkbench workbench = PlatformUI.getWorkbench();
    final Display display = workbench.getDisplay();
    display.syncExec(new Runnable() {
      public void run() {
        if (!display.isDisposed())
          workbench.close();
      }
    });
  }

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//        if (!(unit==null || SI.METER.equals(unit) || SI.RADIAN.equals(unit.getStandardUnit()))) { // $NON-NLS-1$
            graticule.setStatus(ILayer.ERROR);
            graticule.setStatusMessage(Messages.GraticuleGraphic_Illegal_CRS);
            return;
        }
        final IWorkbench workbench = PlatformUI.getWorkbench();
        if (workbench == null)
            return;


        // Start working on layer
        graticule.setStatus(ILayer.WORKING);
        graticule.setStatusMessage(null);


        // Get display to work on
        final Display display = workbench.getDisplay();


        // Set styles
        Font plain = GraticuleStyle.getFontStyle(context).getFont();
        Font bold = plain.deriveFont(Font.BOLD);

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          }      
            navigateMenu.add(new GroupMarker(IWorkbenchActionConstants.NAV_START));
            navigateMenu.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));            
            navigateMenu.add(new GroupMarker(IWorkbenchActionConstants.NAV_END));
        }
        IWorkbench workbench = PlatformUI.getWorkbench();
        IWorkbenchWindow window = workbench.getActiveWorkbenchWindow();
        // we are using the global BACK and FORWARD actions here
        // and will register "handlers" for these commands 
        navigateMenu.appendToGroup(IWorkbenchActionConstants.NAV_END,
            ActionFactory.BACK.create(window));
        navigateMenu.appendToGroup(IWorkbenchActionConstants.NAV_END,

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        final StyleEditorDialog dialog;


        Shell parentShell = shell;
        if (parentShell == null) {
            // Determine a decent parent shell.
            final IWorkbench workbench = PlatformUI.getWorkbench();
            final IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow();
            if (workbenchWindow != null) {
                parentShell = workbenchWindow.getShell();
            } else {
                parentShell = null;
            }

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        if (part == null)
            return null;
        return (IEditorSite) part.getSite();
    }
    private IWorkbenchWindow getWindow() {
        IWorkbench bench=PlatformUI.getWorkbench();
        if( bench==null)
            return null;
        IWorkbenchWindow window = bench.getActiveWorkbenchWindow();
        if( window==null ){
            if( bench.getWorkbenchWindowCount()>0 )
                window=bench.getWorkbenchWindows()[0];
        }
        return window;
    }

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