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StructureViewRenderer.java

/* *******************************************************************
 * Copyright (c) 1999-2001 Xerox Corporation, 
 *               2002 Palo Alto Research Center, Incorporated (PARC).
 * 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: 
 *     Xerox/PARC     initial implementation 
 * ******************************************************************/


package org.aspectj.ajde.ui;

import java.util.EventListener;

/**
 * View renderers get notified of structure view update events and should
 * update the display of the structure view accordingly.
 *
 * @author Mik Kersten
 */
00025 public interface StructureViewRenderer extends EventListener {

      /**
       * Implementors should updated the display of the corresponding
       * file structure view.
       */ 
    public void updateView(StructureView structureView);
    
    /**
     * Highlights and selects the given node as active.  What "active"
     * means depends on the renderer: a typical activation should cause
     * the corresponding node's sourceline to be highlighted in the
     * active editor.
     */
    public void setActiveNode(IStructureViewNode node);
    
    /**
     * Same behavior as <CODE>setActiveNode(StructureViewNode)</CODE> but
     * highlights a particular line within the span of the node.
     * 
     * @param     lineOffset  number of lines after the begin and before the
     *                                    end line of the corresponding <CODE>StructureNode</CODE>.
     */ 
      public void setActiveNode(IStructureViewNode activeNode, int lineOffset);
}

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