flow4jpluginimages.java

一个java写的business process management系统

/*
 * Copyright (c) 2003-2004, Alexander Greif
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Flow4J-Eclipse project nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.orthanc.flow4j.designer.ui;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import net.orthanc.flow4j.designer.core.Flow4JPlugin;

import org.eclipse.jface.resource.ImageDescriptor;

/**
 * @author greifa
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class Flow4jPluginImages {

	private static URL fgIconBaseURL= null;
	
	/*
	 * Set of predefined Image Descriptors.
	 */
	private static final String T_OBJ= "obj16"; 		//$NON-NLS-1$
	private static final String T_OVR= "ovr16"; 		//$NON-NLS-1$
	private static final String T_WIZBAN= "wizban"; 	//$NON-NLS-1$
	private static final String T_CLCL= "clcl16"; 	//$NON-NLS-1$
	private static final String T_DLCL= "dlcl16"; 	//$NON-NLS-1$
	private static final String T_CTOOL= "ctool16"; 	//$NON-NLS-1$
	private static final String T_CVIEW= "cview16"; //$NON-NLS-1$

	public static final ImageDescriptor DESC_WIZBAN_NEWFLOW4JPROJECT = create(T_WIZBAN, "new_flow4j_project_wiz.gif"); 			//$NON-NLS-1$
	public static final ImageDescriptor DESC_WIZBAN_NEWFLOW = create(T_WIZBAN, "new_flow_wiz.gif"); 			//$NON-NLS-1$


	private static void getIconBaseURL() {
		String pathSuffix= "icons/full/"; //$NON-NLS-1$
		try {
			fgIconBaseURL = new URL(Flow4JPlugin.getInstallFolderPathURL(), pathSuffix);
		} catch (IOException e) {
			// do nothing
		}
	}





	private static ImageDescriptor create(String prefix, String name) {
		try {
			return ImageDescriptor.createFromURL(makeIconFileURL(prefix, name));
		} catch (MalformedURLException e) {
			return ImageDescriptor.getMissingImageDescriptor();
		}
	}
	
	private static URL makeIconFileURL(String prefix, String name) throws MalformedURLException {
		if (fgIconBaseURL == null)
			getIconBaseURL();
		if (fgIconBaseURL == null)
			throw new MalformedURLException();
			
		StringBuffer buffer= new StringBuffer(prefix);
		buffer.append('/');
		buffer.append(name);
		return new URL(fgIconBaseURL, buffer.toString());
	}	


}