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/*******************************************************************************
* Copyright (c) 2001, 2004 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*
*******************************************************************************/
package org.eclipse.wst.xml.ui.internal.editor;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery;
import org.eclipse.wst.xml.core.internal.modelquery.ModelQueryUtil;
import org.eclipse.wst.xml.ui.internal.XMLUIPlugin;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* @author nsd
*/
public class CMImageUtil {
public static CMNode getDeclaration(Node node) {
CMNode decl = null;
ModelQuery mq = null;
switch (node.getNodeType()) {
case Node.ATTRIBUTE_NODE : {
mq = ModelQueryUtil.getModelQuery(((Attr) node).getOwnerDocument());
decl = mq.getCMAttributeDeclaration((Attr) node);
}
break;
case Node.ELEMENT_NODE : {
mq = ModelQueryUtil.getModelQuery(node.getOwnerDocument());
decl = mq.getCMElementDeclaration((Element) node);
}
break;
}
return decl;
}
public static Image getImage(CMNode cmnode) {
if (cmnode == null)
return null;
Image image = null;
ImageDescriptor descriptor = getImageDescriptor(cmnode);
if (descriptor != null) {
image = descriptor.createImage(false);
}
return image;
}
public static ImageDescriptor getImageDescriptor(CMNode cmnode) {
if (cmnode == null)
return null;
// cache CM-specified images with the XML UI plugin
String imageURLString = (String) cmnode.getProperty("small-icon"); //$NON-NLS-1$
ImageDescriptor descriptor = null;
if (imageURLString != null && imageURLString.length() > 0) {
descriptor = XMLUIPlugin.getInstance().getImageRegistry()
.getDescriptor(imageURLString);
if (descriptor == null) {
try {
URL imageURL = new URL(imageURLString);
URLConnection connection = imageURL.openConnection();
connection.setUseCaches(false);
ImageData data = new ImageData(connection.getInputStream());
descriptor = ImageDescriptor.createFromImageData(data);
XMLUIPlugin.getInstance().getImageRegistry().put(
imageURLString, descriptor);
} catch (MalformedURLException e) {
descriptor = null;
} catch (IOException e) {
descriptor = null;
}
}
}
return descriptor;
}
/**
*
*/
private CMImageUtil() {
super();
}
}
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