{{title コード整形プラグイン：Javaサンプル}}
※EclipseのSWTサンプルソースかなにか・・・

{{code Java,4,true
package XMLPlugin.views;

import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.part.*;
import org.eclipse.jface.viewers.*;
import org.eclipse.swt.graphics.Image;
import org.eclipse.jface.action.*;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.*;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.swt.SWT;

/**
 * This sample class demonstrates how to plug-in a new
 * workbench view. The view shows data obtained from the
 * model. The sample creates a dummy model on the fly,
 * but a real implementation would connect to the model
 * available either in this or another plug-in (e.g. the workspace).
 * The view is connected to the model using a content provider.
 * <p>
 * The view uses a label provider to define how model
 * objects should be presented in the view. Each
 * view can present the same model objects using
 * different labels and icons, if needed. Alternatively,
 * a single label provider can be shared between views
 * in order to ensure that objects of the same type are
 * presented in the same way everywhere.
 * <p>
 */

public class SampleView extends ViewPart {
    private TableViewer viewer;
    private Action action1;
    private Action action2;
    private Action doubleClickAction;

    /*
     * The content provider class is responsible for
     * providing objects to the view. It can wrap
     * existing objects in adapters or simply return
     * objects as-is. These objects may be sensitive
     * to the current input of the view, or ignore
     * it and always show the same content 
     * (like Task List, for example).
     */
     
    class ViewContentProvider implements IStructuredContentProvider {
        public void inputChanged(Viewer v, Object oldInput, Object newInput) {
        }
        public void dispose() {
        }
        public Object[] getElements(Object parent) {
            return new String[] { "One", "Two", "Three" };
        }
    }
    class ViewLabelProvider extends LabelProvider implements ITableLabelProvider {
        public String getColumnText(Object obj, int index) {
            return getText(obj);
        }
        public Image getColumnImage(Object obj, int index) {
            return getImage(obj);
        }
        public Image getImage(Object obj) {
            return PlatformUI.getWorkbench().
                    getSharedImages().getImage(ISharedImages.IMG_OBJ_ELEMENT);
        }
    }
    class NameSorter extends ViewerSorter {
    }

    /**
     * The constructor.
     */
    public SampleView() {
    }

    /**
     * This is a callback that will allow us
     * to create the viewer and initialize it.
     */
    public void createPartControl(Composite parent) {
        viewer = new TableViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
        viewer.setContentProvider(new ViewContentProvider());
        viewer.setLabelProvider(new ViewLabelProvider());
        viewer.setSorter(new NameSorter());
        viewer.setInput(ResourcesPlugin.getWorkspace());
        makeActions();
        hookContextMenu();
        hookDoubleClickAction();
        contributeToActionBars();
    }

    private void hookContextMenu() {
        MenuManager menuMgr = new MenuManager("#PopupMenu");
        menuMgr.setRemoveAllWhenShown(true);
        menuMgr.addMenuListener(new IMenuListener() {
            public void menuAboutToShow(IMenuManager manager) {
                SampleView.this.fillContextMenu(manager);
            }
        });
        Menu menu = menuMgr.createContextMenu(viewer.getControl());
        viewer.getControl().setMenu(menu);
        getSite().registerContextMenu(menuMgr, viewer);
    }

    private void contributeToActionBars() {
        IActionBars bars = getViewSite().getActionBars();
        fillLocalPullDown(bars.getMenuManager());
        fillLocalToolBar(bars.getToolBarManager());
    }

    private void fillLocalPullDown(IMenuManager manager) {
        manager.add(action1);
        manager.add(new Separator());
        manager.add(action2);
    }

    private void fillContextMenu(IMenuManager manager) {
        manager.add(action1);
        manager.add(action2);
        // Other plug-ins can contribute there actions here
        manager.add(new Separator("Additions"));
    }
    
    private void fillLocalToolBar(IToolBarManager manager) {
        manager.add(action1);
        manager.add(action2);
    }

    private void makeActions() {
        action1 = new Action() {
            public void run() {
                showMessage("Action 1 executed");
            }
        };
        action1.setText("Action 1");
        action1.setToolTipText("Action 1 tooltip");
        action1.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
            getImageDescriptor(ISharedImages.IMG_OBJS_INFO_TSK));
        
        action2 = new Action() {
            public void run() {
                showMessage("Action 2 executed");
            }
        };
        action2.setText("Action 2");
        action2.setToolTipText("Action 2 tooltip");
        action2.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
            getImageDescriptor(ISharedImages.IMG_OBJS_TASK_TSK));
        doubleClickAction = new Action() {
            public void run() {
                ISelection selection = viewer.getSelection();
                Object obj = ((IStructuredSelection)selection).getFirstElement();
                showMessage("Double-click detected on "+obj.toString());
            }
        };
    }

    private void hookDoubleClickAction() {
        viewer.addDoubleClickListener(new IDoubleClickListener() {
            public void doubleClick(DoubleClickEvent event) {
                doubleClickAction.run();
            }
        });
    }
    private void showMessage(String message) {
        MessageDialog.openInformation(
            viewer.getControl().getShell(),
            "サンプル・ビュー",
            message);
    }

    /**
     * Passing the focus request to the viewer's control.
     */
    public void setFocus() {
        viewer.getControl().setFocus();
    }
}
}}