| /******************************************************************************* |
| * Copyright (c) 2006 Tom Schindl and others. |
| * 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: |
| * Tom Schindl - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.snippets.resources; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| |
| import org.eclipse.core.runtime.FileLocator; |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.ImageRegistry; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * A snippet to demonstrate a dialog with image buttons. |
| * |
| */ |
| public class Snippet057FileImageDescriptors { |
| private ImageRegistry registry; |
| |
| public Snippet057FileImageDescriptors(final Shell shell) { |
| |
| Dialog dia = new Dialog(shell) { |
| private ImageDescriptor getImageDescriptorFromClass(String path) { |
| if (registry == null) { |
| registry = new ImageRegistry(shell.getDisplay()); |
| } |
| |
| ImageDescriptor desc = registry.getDescriptor(path); |
| if (desc == null) { |
| desc = ImageDescriptor.createFromFile( |
| Snippet057FileImageDescriptors.class, path); |
| registry.put(path, desc); |
| } |
| |
| return desc; |
| } |
| |
| private ImageDescriptor getImageDescriptorFromFile(String path) { |
| if (registry == null) { |
| registry = new ImageRegistry(shell.getDisplay()); |
| } |
| |
| ImageDescriptor desc = registry.getDescriptor(path); |
| if (desc == null) { |
| URL classPath = Snippet057FileImageDescriptors.class |
| .getResource(path); |
| Class bogus = null; |
| desc = ImageDescriptor.createFromFile(bogus, classPath |
| .getFile()); |
| |
| registry.put(path, desc); |
| } |
| |
| return desc; |
| } |
| |
| protected Button createButton(Composite parent, int id, |
| String label, boolean defaultButton) { |
| Button b = super.createButton(parent, id, label, defaultButton); |
| if (id == IDialogConstants.OK_ID) { |
| b |
| .setImage(getImageDescriptorFromClass( |
| "filesave.png").createImage()); //$NON-NLS-1$ |
| // reset the button layout |
| setButtonLayoutData(b); |
| } else { |
| b |
| .setImage(getImageDescriptorFromFile("cancel.png").createImage()); //$NON-NLS-1$ |
| // reset the button layout |
| setButtonLayoutData(b); |
| return b; |
| } |
| |
| return b; |
| } |
| }; |
| dia.open(); |
| } |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setLayout(new FillLayout()); |
| |
| shell.open(); |
| |
| new Snippet057FileImageDescriptors(shell); |
| |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| |
| display.dispose(); |
| } |
| } |