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/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.filesystem.ui.internal.columns;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.tcf.te.tcf.filesystem.core.model.FSTreeNode;
import org.eclipse.tcf.te.tcf.filesystem.ui.activator.UIPlugin;
import org.eclipse.tcf.te.tcf.filesystem.ui.internal.ImageConsts;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
/**
* The default implementation of ImageProvider, defining the images
* based on predefined images based on the node type.
*/
public class DefaultImageProvider implements ImageProvider {
// The editor registry used to search a file's image.
private IEditorRegistry editorRegistry = null;
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.internal.columns.ImageProvider#getImage(org.eclipse.tcf.te.tcf.filesystem.model.FSTreeNode)
*/
@Override
public Image getImage(FSTreeNode node) {
if (node.isSystemRoot()) {
return UIPlugin.getImage(ImageConsts.ROOT);
}
else if (node.isRoot()) {
return UIPlugin.getImage(ImageConsts.ROOT_DRIVE);
}
else if (node.isDirectory()) {
return UIPlugin.getImage(ImageConsts.FOLDER);
}
else if (node.isFile()) {
return getPredefinedImage(node);
}
return null;
}
/**
* Get a predefined image for the tree node. These images are retrieved from
* editor registry.
*
* @param node The file tree node.
* @return The editor image for this type.
*/
protected Image getPredefinedImage(FSTreeNode node) {
Image image;
String key = node.name;
image = UIPlugin.getImage(key);
if (image == null) {
ImageDescriptor descriptor = getEditorRegistry().getImageDescriptor(key);
if (descriptor == null) {
descriptor = getEditorRegistry().getSystemExternalEditorImageDescriptor(key);
}
if (descriptor != null) {
UIPlugin.getDefault().getImageRegistry().put(key, descriptor);
}
image = UIPlugin.getImage(key);
}
return image;
}
/**
* Returns the workbench's editor registry.
*/
private IEditorRegistry getEditorRegistry() {
if (editorRegistry == null) {
IWorkbench workbench = PlatformUI.getWorkbench();
if (workbench != null) editorRegistry = workbench.getEditorRegistry();
}
return editorRegistry;
}
}
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