/*

  * The contents of this file are subject to the terms of the Common Development

  * and Distribution License (the License). You may not use this file except in

  * compliance with the License.

  * 

  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html

  * or http://www.netbeans.org/cddl.txt.

  * 

  * When distributing Covered Code, include this CDDL Header Notice in each file

  * and include the License file at http://www.netbeans.org/cddl.txt.

  * If applicable, add the following below the CDDL Header, with the fields

  * enclosed by brackets [] replaced by your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  * 

  * The Original Software is NetBeans. The Initial Developer of the Original

  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun

  * Microsystems, Inc. All Rights Reserved.

  */

 package org.netbeans.modules.bpel.search;

 import java.awt.Color;

 import java.awt.Font;

 import java.util.ArrayList;

 import java.util.List;

 import org.netbeans.modules.bpel.model.api.BpelEntity;

 import org.netbeans.modules.bpel.design.DesignView;

 import org.netbeans.modules.bpel.design.decoration.Decoration;

 import org.netbeans.modules.bpel.design.decoration.DecorationProvider;

 import org.netbeans.modules.bpel.design.decoration.DecorationProviderFactory;

 import org.netbeans.modules.bpel.design.decoration.GlowDescriptor;

 import org.netbeans.modules.bpel.design.decoration.LabelStyleDescriptor;

 import org.netbeans.modules.bpel.design.model.elements.VisualElement;

 /**

  * @author Vladimir Yaroslavskiy

  * @version 2006.12.06

  */

 public final class Decorator extends DecorationProvider implements DecorationProviderFactory {

     public Decorator() {}

     public DecorationProvider createInstance(DesignView view) {

         return new Decorator(view);

     }

     private Decorator(DesignView view) {

         super(view);

         myHighlightedEntities = new ArrayList<BpelEntity>();

     }

     @Override

     public Decoration getDecoration(BpelEntity entity) {

         if ( !myIsClearSelection && mySelectedEntity == entity) {

             return new Decoration(new LabelStyleDescriptor(new Color(0x339900), element, Font.BOLD)); // glow

         }

         if ( !myIsClearHighlighting && myHighlightedEntities.contains(entity)) {

             return new Decoration(new GlowDescriptor(new Color(255, 255, 0), 20.0)); // highlight

         }

         return null;

     }

     @Override

     public void release() {

         mySelectedEntity = null;

         myHighlightedEntities = null;

     }

     void select(BpelEntity entity, VisualElement findedElement) {

         if (mySelectedEntity != null) {

             myIsClearSelection = true;

         }

         myIsClearSelection = false;

         mySelectedEntity = entity;

         element = findedElement;

         fireDecorationChanged();

     }

     void clearHighlighting() {

         myIsClearHighlighting = true;

         myIsClearSelection = true;

         fireDecorationChanged();

         myHighlightedEntities = new ArrayList<BpelEntity>();

         myIsClearHighlighting = false;

         myIsClearSelection = false;

     }

     void doHighlight(BpelEntity entity, boolean highlighted) {

         if (highlighted) {

             myHighlightedEntities.add(entity);

         } else {

             myHighlightedEntities.remove(entity);

         }

         myIsClearSelection = !highlighted;

         fireDecorationChanged();

     }

     static Decorator getDecorator(DesignView view) {

         List<DecorationProvider> providers = view.getDecorationManager().getProviders();

         for (DecorationProvider provider : providers) {

             if (provider instanceof Decorator) {

                 return (Decorator) provider;

             }

         }

         return null;

     }

     private VisualElement element;

     private boolean myIsClearSelection;

     private boolean myIsClearHighlighting;

     private BpelEntity mySelectedEntity;

     private List<BpelEntity> myHighlightedEntities;

 }