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/*******************************************************************************
* Copyright (c) 2002, 2010 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 Rational Software - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.managedbuilder.ui.properties;
import java.net.URL;
import org.eclipse.cdt.managedbuilder.core.IOptionCategory;
import org.eclipse.cdt.managedbuilder.core.ITool;
import org.eclipse.cdt.ui.newui.UIMessages;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Display;
/**
* @noextend This class is not intended to be subclassed by clients.
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public class ToolListLabelProvider extends LabelProvider {
private final Image IMG_TOOL = ManagedBuilderUIImages.get(ManagedBuilderUIImages.IMG_BUILD_TOOL);
private final Image IMG_CAT = ManagedBuilderUIImages.get(ManagedBuilderUIImages.IMG_BUILD_CAT);
private static final String ERROR_UNKNOWN_ELEMENT = "BuildPropertyPage.error.Unknown_tree_element"; //$NON-NLS-1$
private ImageDescriptor descriptor = null;
private ResourceManager manager = null;
/* (non-Javadoc)
* Returns the Image associated with the icon information retrieved out of OptionCategory.
*/
private Image getIconFromOptionCategory(IOptionCategory cat) {
Image img = null;
URL url = cat.getIconPath();
// Get the image from the URL.
if (url != null) {
descriptor = ImageDescriptor.createFromURL(url);
manager = JFaceResources.getResources(Display.getCurrent());
Assert.isNotNull(manager);
img = manager.createImageWithDefault(descriptor);
if (img == null) {
// Report error by displaying a warning message
System.err.println("Couldn't create image from URL \"" + url + "\", to display icon for Tool Options." ); //$NON-NLS-1$ //$NON-NLS-2$
}
}
return img;
}
@Override
public Image getImage(Object element) {
if (!(element instanceof ToolListElement)) {
throw unknownElement(element);
}
Image defaultImage = IMG_CAT;
ToolListElement toolListElement = (ToolListElement)element;
IOptionCategory cat = toolListElement.getOptionCategory();
if (cat == null) {
defaultImage = IMG_TOOL;
cat = (IOptionCategory)toolListElement.getTool();
}
if (cat != null) {
// Return a OptionCategory image for an OptionCategory reference
Image img = getIconFromOptionCategory(cat);
if (img != null) {
return img;
}
}
// Use default icon for display
return defaultImage;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ILabelProvider#getText(Object)
*/
@Override
public String getText(Object element) {
if (!(element instanceof ToolListElement)) {
throw unknownElement(element);
}
ToolListElement toolListElement = (ToolListElement)element;
IOptionCategory cat = toolListElement.getOptionCategory();
if (cat == null) {
ITool tool = toolListElement.getTool();
return tool.getUniqueRealName();
}
else {
return cat.getName();
}
}
protected RuntimeException unknownElement(Object element) {
return new RuntimeException(UIMessages.getFormattedString(ERROR_UNKNOWN_ELEMENT, element.getClass().getName()));
}
/**
* Disposing any images that were allocated for it.
*
* @since 3.0
*/
@Override
public void dispose() {
if (descriptor != null && manager != null) {
manager.destroyImage(descriptor);
}
}
}
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