bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/decorators/LightweightActionDescriptor.java

package org.eclipse.ui.internal.decorators;

/************************************************************************
Copyright (c) 2000, 2002 IBM Corporation and others.
All rights reserved.   This program and the accompanying materials
are made available under the terms of the Common Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v10.html

Contributors:
    IBM - Initial implementation
************************************************************************/
import org.eclipse.core.runtime.*;
import org.eclipse.ui.internal.ActionDescriptor;
import org.eclipse.ui.internal.WorkbenchImages;
import org.eclipse.ui.internal.dialogs.DialogUtil;
import org.eclipse.ui.internal.model.WorkbenchAdapter;
import org.eclipse.ui.model.*;
import org.eclipse.jface.resource.*;

/**
 * Represent the description of an action within
 * an action set. It does not create an action.
 *
 * [Issue: This class overlaps with ActionDescriptor
 *		and should be reviewed to determine if code
 *		reuse if possible.]
 */
public class LightweightActionDescriptor extends WorkbenchAdapter
	implements IAdaptable
{
	private String id;
	private String label;
	private String description;
	private ImageDescriptor image;
public LightweightActionDescriptor(IConfigurationElement actionElement) {
	super();

	this.id = actionElement.getAttribute(ActionDescriptor.ATT_ID);
	this.label = actionElement.getAttribute(ActionDescriptor.ATT_LABEL);
	this.description = actionElement.getAttribute(ActionDescriptor.ATT_DESCRIPTION);

	String iconName = actionElement.getAttribute(ActionDescriptor.ATT_ICON);
	if (iconName != null) {
		this.image = WorkbenchImages.getImageDescriptorFromExtension(actionElement.getDeclaringExtension(), iconName);
	}
}
/**
 * Returns an object which is an instance of the given class
 * associated with this object. Returns <code>null</code> if
 * no such object can be found.
 */
public Object getAdapter(Class adapter) {
	if (adapter == IWorkbenchAdapter.class) 
		return this;
	return null;
}
/**
 * Returns the action's description.
 */
public String getDescription() {
	return description;
}
/**
 * Returns the action's id.
 */
public String getId() {
	return id;
}
/**
 * Returns the action's image descriptor.
 */
public ImageDescriptor getImageDescriptor() {
	return image;
}
/**
 * @see IWorkbenchAdapter#getImageDescriptor
 */
public ImageDescriptor getImageDescriptor(Object o) {
	if (o == this)
		return getImageDescriptor();
	return super.getImageDescriptor(o);
}
/**
 * Returns the action's label.
 */
public String getLabel() {
	return label;
}
/**
 * @see IWorkbenchAdapter#getLabel
 */
public String getLabel(Object o) {
	if (o == this) {
		String text = getLabel();
		int end = text.lastIndexOf('@');
		if(end >= 0)
			text = text.substring(0, end);
		return DialogUtil.removeAccel(text);		
	}
	return super.getLabel(o);
}
}