Java tutorial
/* * uDig - User Friendly Desktop Internet GIS client * http://udig.refractions.net * (C) 2012, Refractions Research Inc. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD * License v1.0 (http://udig.refractions.net/files/bsd3-v10.html). */ package net.refractions.udig.ui.properties; import net.refractions.udig.core.SelectionProviderForwarder; import org.eclipse.core.commands.AbstractHandler; import org.eclipse.core.commands.ExecutionEvent; import org.eclipse.core.commands.ExecutionException; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.viewers.ISelectionProvider; import org.eclipse.jface.window.IShellProvider; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.dialogs.PropertyDialogAction; import org.eclipse.ui.handlers.HandlerUtil; /** * Used to pop open a {@link PreferenceDialog} taking care to filter the * current selection the indicated forward type. * <p> * This is intended to be extended as a stand alone command handler:<pre> * public class MapPropertiesCommandHandler extends ProperitesCommandHandler { * public MapPropertiesCommandHandler(){ * super(IMap.class); * } * } * <ul> * <li></li> * </ul> * </p> * @author jody * @since 1.2.0 */ public class ProperitesCommandHandler extends AbstractHandler { private Class<?> forwardType; public ProperitesCommandHandler(Class<?> fowardType) { this.forwardType = fowardType; } public Object execute(ExecutionEvent event) throws ExecutionException { final IWorkbenchWindow activeWorkbenchWindow = HandlerUtil.getActiveWorkbenchWindow(event); IShellProvider shellProvider = new IShellProvider() { public Shell getShell() { return new Shell(activeWorkbenchWindow.getShell()); } }; IWorkbenchPart activePart = activeWorkbenchWindow.getActivePage().getActivePart(); ISelectionProvider provider = activePart.getSite().getSelectionProvider(); ISelectionProvider selectionProvider = new SelectionProviderForwarder(provider, forwardType); PropertyDialogAction action = new PropertyDialogAction(shellProvider, selectionProvider); PreferenceDialog dialog = action.createDialog(); dialog.open(); return null; } }