content: /*******************************************************************************
   * Copyright (c) 2000, 2007 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.jsdt.internal.ui.viewsupport;
  
  import org.eclipse.jface.viewers.DecoratingLabelProvider;
  import org.eclipse.jface.viewers.DecorationContext;
  import org.eclipse.jface.viewers.ILabelDecorator;
  import org.eclipse.jface.viewers.ILabelProvider;
  import org.eclipse.jface.viewers.LabelDecorator;
  import org.eclipse.ui.PlatformUI;
  import org.eclipse.wst.jsdt.internal.ui.packageview.HierarchicalDecorationContext;
  import org.eclipse.wst.jsdt.ui.ProblemsLabelDecorator;
  
  public class DecoratingJavaLabelProvider extends DecoratingLabelProvider implements IRichLabelProvider {
  	
  	/**
  	 * Decorating label provider for Java. Combines a JavaUILabelProvider
  	 * with problem and override indicator with the workbench decorator (label
  	 * decorator extension point).
  	 * @param labelProvider the label provider to decorate
  	 */
  	public DecoratingJavaLabelProvider(JavaUILabelProvider labelProvider) {
  		this(labelProvider, true);
  	}
  
  	/**
  	 * Decorating label provider for Java. Combines a JavaUILabelProvider
  	 * (if enabled with problem indicator) with the workbench
  	 * decorator (label decorator extension point).
  	 * 	@param labelProvider the label provider to decorate
  	 * @param errorTick show error ticks
  	 */
  	public DecoratingJavaLabelProvider(JavaUILabelProvider labelProvider, boolean errorTick) {
  		this(labelProvider, errorTick, true);
  	}
  	
  	/**
  	 * Decorating label provider for Java. Combines a JavaUILabelProvider
  	 * (if enabled with problem indicator) with the workbench
  	 * decorator (label decorator extension point).
  	 * 	@param labelProvider the label provider to decorate
  	 * @param errorTick show error ticks
  	 * @param flatPackageMode configure flat package mode
  	 */
  	public DecoratingJavaLabelProvider(JavaUILabelProvider labelProvider, boolean errorTick, boolean flatPackageMode) {
  		super(labelProvider, PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator());
  		if (errorTick) {
  			labelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
  		}
  		setFlatPackageMode(flatPackageMode);
  	}
  	
  	/**
  	 * Tells the label decorator if the view presents packages flat or hierarchical.
  	 * @param enable If set, packages are presented in flat mode.
  	 */
  	public void setFlatPackageMode(boolean enable) {
  		if (enable) {
  			setDecorationContext(DecorationContext.DEFAULT_CONTEXT);
  		} else {
  			setDecorationContext(HierarchicalDecorationContext.CONTEXT);
  		}
  	}
  
  	/* (non-Javadoc)
  	 * @see org.eclipse.wst.jsdt.internal.ui.viewsupport.IRichLabelProvider#getRichTextLabel(Object)
  	 */
  	public ColoredString getRichTextLabel(Object element) {
  		ILabelProvider labelProvider= getLabelProvider();
  		if (labelProvider instanceof IRichLabelProvider) {
  			// get a rich label from the label decorator
  			IRichLabelProvider richLabelProvider= (IRichLabelProvider) labelProvider;
  			ColoredString richLabel= richLabelProvider.getRichTextLabel(element);
  			if (richLabel != null) {
  				String decorated= null;
  				ILabelDecorator labelDecorator= getLabelDecorator();
  				if (labelDecorator != null) {
  					if (labelDecorator instanceof LabelDecorator) {
  						decorated= ((LabelDecorator) labelDecorator).decorateText(richLabel.getString(), element, getDecorationContext());
  					} else {
  						decorated= labelDecorator.decorateText(richLabel.getString(), element);
  					}
  				}
  				if (decorated != null) {
  					return ColoredJavaElementLabels.decorateColoredString(richLabel, decorated, ColoredJavaElementLabels.DECORATIONS_STYLE);
  				}
  				return richLabel;
  			}
  		}
  		return null;
  	}
  
  }
  