Java tutorial
/** **************************************************************************** * Copyright (c) The Spray Project. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Spray Dev Team - initial API and implementation **************************************************************************** */ /******************************************************************************* * <copyright> * * Copyright (c) 2005, 2010 SAP AG. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * SAP AG - initial API, implementation and documentation * * </copyright> * *******************************************************************************/ package org.eclipselabs.spray.runtime.graphiti.containers; import java.io.IOException; import java.util.Collections; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.emf.common.util.URI; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.emf.ecore.resource.ResourceSet; import org.eclipse.graphiti.mm.algorithms.styles.Color; import org.eclipse.graphiti.mm.pictograms.Diagram; import org.eclipse.graphiti.services.Graphiti; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IInputValidator; import org.eclipse.jface.dialogs.InputDialog; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.RGB; import org.eclipse.swt.widgets.ColorDialog; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.views.properties.PropertySheet; public class SampleUtil { private static final String PROPERTY_SHEET_ID = "org.eclipse.ui.views.PropertySheet"; static protected PropertySheet sheet = null; static public void openPropertyView() { try { PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView(PROPERTY_SHEET_ID); } catch (PartInitException e) { // TODO Auto-generated catch block System.out.println("SampleUtil:: Failed to open property view."); e.printStackTrace(); } } /** * Opens an simple input dialog with OK and Cancel buttons. * <p> * * @param dialogTitle * the dialog title, or <code>null</code> if none * @param dialogMessage * the dialog message, or <code>null</code> if none * @param initialValue * the initial input value, or <code>null</code> if none * (equivalent to the empty string) * @return the string */ public static String askString(String dialogTitle, String dialogMessage, String initialValue, IInputValidator validator) { String ret = null; Shell shell = getShell(); InputDialog inputDialog = new InputDialog(shell, dialogTitle, dialogMessage, initialValue, validator); int retDialog = inputDialog.open(); if (retDialog == Window.OK) { ret = inputDialog.getValue(); } return ret; } public static boolean confirmDialog(String dialogTitle, String dialogMessage) { Shell shell = getShell(); MessageDialog dialog = new MessageDialog(shell, dialogTitle, (Image) null, dialogMessage, MessageDialog.NONE, new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0) { protected int getShellStyle() { return super.getShellStyle() | SWT.SHEET; } }; // ensure yes is the default return dialog.open() == 0; } public static void infoString(String dialogTitle, String dialogMessage) { Shell shell = getShell(); MessageDialog.openError(shell, dialogTitle, dialogMessage); } /** * Opens a dialog to change the color. * * @param color * the color to change * @return the changed color */ public static Color editColor(Color color) { if (color != null && color.eContainer() instanceof Diagram) { Shell shell = getShell(); ColorDialog colorDialog = new ColorDialog(shell); colorDialog.setText("choose color"); colorDialog.setRGB(new RGB(color.getRed(), color.getGreen(), color.getBlue())); RGB retRgb = colorDialog.open(); if (retRgb == null) { return null; } Diagram diagram = (Diagram) color.eContainer(); Color newColor = Graphiti.getGaService().manageColor(diagram, retRgb.red, retRgb.green, retRgb.blue); return newColor; } return null; } /** * Returns the currently active Shell. * * @return The currently active Shell. */ private static Shell getShell() { return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(); } /** * @param obj * @param d * @param modelExtension * @throws CoreException * @throws IOException */ public static void saveToModelFile(final EObject obj, final Diagram d, String modelExtension) throws CoreException, IOException { URI uri = d.eResource().getURI(); uri = uri.trimFragment(); uri = uri.trimFileExtension(); uri = uri.appendFileExtension(modelExtension); ResourceSet rSet = d.eResource().getResourceSet(); final IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot(); IResource file = workspaceRoot.findMember(uri.toPlatformString(true)); if (file == null || !file.exists()) { Resource createResource = rSet.createResource(uri); createResource.save(Collections.emptyMap()); createResource.setTrackingModification(true); } final Resource resource = rSet.getResource(uri, true); resource.getContents().add(obj); resource.save(Collections.emptyMap()); } }