Java tutorial
/******************************************************************************* * Copyright (c) 2014 SAP AG or an SAP affiliate company. All rights reserved. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.sap.dirigible.ide.db.viewer.views; import java.net.URL; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.jface.resource.ResourceManager; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.swt.graphics.Image; public class DatabaseViewLabelProvider extends LabelProvider { private static final long serialVersionUID = 7440464384326831067L; private static final String ICONS_SEGMENT = "/icons/"; //$NON-NLS-1$ private static final URL TYPE_SCHEMA_ICON_URL = getIconURL("icon-schema.png"); //$NON-NLS-1$ private static final URL TYPE_TABLE_ICON_URL = getIconURL("icon-table.png"); //$NON-NLS-1$ @SuppressWarnings("unused") private final DatabaseViewer databaseViewer; private final ResourceManager resourceManager; /** * @param databaseViewer */ DatabaseViewLabelProvider(DatabaseViewer databaseViewer) { this.databaseViewer = databaseViewer; this.resourceManager = new LocalResourceManager(JFaceResources.getResources()); } public String getText(Object obj) { return obj.toString(); } public Image getImage(Object obj) { // String imageKey = ISharedImages.IMG_OBJ_ELEMENT; // if (obj instanceof TreeParent) // imageKey = ISharedImages.IMG_OBJ_FOLDER; // return PlatformUI.getWorkbench().getSharedImages() // .getImage(imageKey); if (obj instanceof TreeParent) { return createImage(TYPE_SCHEMA_ICON_URL); } else { return createImage(TYPE_TABLE_ICON_URL); } } private Image createImage(URL imageURL) { ImageDescriptor imageDescriptor = ImageDescriptor.createFromURL(imageURL); return resourceManager.createImage(imageDescriptor); } private static URL getIconURL(String iconName) { return DatabaseViewLabelProvider.class.getResource(ICONS_SEGMENT + iconName); } }