/* $Id: ModeCreateAssociationClass.java 17865 2010-01-12 20:45:26Z linus $

  *****************************************************************************

  * Copyright (c) 2009 Contributors - see below

  * 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:

  *    bobtarling

  *****************************************************************************

  *

  * Some portions of this file was previously release using the BSD License:

  */

 // Copyright (c) 2006 The Regents of the University of California. All

 // Rights Reserved. Permission to use, copy, modify, and distribute this

 // software and its documentation without fee, and without a written

 // agreement is hereby granted, provided that the above copyright notice

 // and this paragraph appear in all copies.  This software program and

 // documentation are copyrighted by The Regents of the University of

 // California. The software program and documentation are supplied "AS

 // IS", without any accompanying services from The Regents. The Regents

 // does not warrant that the operation of the program will be

 // uninterrupted or error-free. The end-user understands that the program

 // was developed for research purposes and is advised not to rely

 // exclusively on the program for any reason.  IN NO EVENT SHALL THE

 // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,

 // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,

 // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF

 // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF

 // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY

 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE

 // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF

 // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,

 // UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 package org.argouml.uml.diagram.ui;

 import java.awt.Rectangle;

 import org.apache.log4j.Logger;

 import org.argouml.model.Model;

 import org.argouml.ui.ProjectBrowser;

 import org.argouml.uml.diagram.ArgoDiagram;

 import org.argouml.uml.diagram.DiagramSettings;

 import org.tigris.gef.base.Editor;

 import org.tigris.gef.base.Layer;

 import org.tigris.gef.base.LayerPerspective;

 import org.tigris.gef.graph.MutableGraphModel;

 import org.tigris.gef.presentation.FigEdge;

 /**

  * Mode to manage interaction while user is drawing the pseudo-edge that will

  * become an Association Class. The only difference from a basic edge is that

  * the completion action is extended to draw the extra associated node and edge

  * that are part of this composite figure.

  * 

  * @author Bob Tarling

  */

 public class ModeCreateAssociationClass extends ModeCreateAssociation {

     private static final long serialVersionUID = -8656139458297932182L;

     private static final Logger LOG =

         Logger.getLogger(ModeCreateAssociationClass.class);

     private static final int DISTANCE = 80;

     public Object getMetaType() {

         return Model.getMetaTypes().getAssociationClass();

     }

     @Override

     protected void endAttached(FigEdge fe) {

         Layer lay = editor.getLayerManager().getActiveLayer();

         FigAssociationClass thisFig =

             (FigAssociationClass) lay.presentationFor(getNewEdge());

         buildParts(editor, thisFig, lay);

     }

     /**

      * Build the complex representation of an AssociationClass in the active

      * layer of the current editor. This is a convenience function which is used

      * when the pseudo-edge is added to a diagram via drag-and-drop or by using

      * the "Add to Diagram" menu item.

      * 

      * @param editor

      *            the GEF editor

      * @param element

      *            the model element

      */

     public static void buildInActiveLayer(Editor editor, Object element) {

         Layer layer = editor.getLayerManager().getActiveLayer();

         FigAssociationClass thisFig =

             (FigAssociationClass) layer.presentationFor(element);

         if (thisFig != null) {

             buildParts(editor, thisFig, layer);

         }

     }

     private static void buildParts(Editor editor, FigAssociationClass thisFig,

             Layer lay) {

         thisFig.removePathItem(thisFig.getMiddleGroup());

         MutableGraphModel mutableGraphModel =

             (MutableGraphModel) editor.getGraphModel();

         mutableGraphModel.addNode(thisFig.getOwner());

         // TODO: This can't depend on ProjectBrowser.  It needs to get

         // the current drawing area from the Diagram subsystem or GEF

         Rectangle drawingArea =

             ProjectBrowser.getInstance()

                 .getEditorPane().getBounds();

         // Perhaps something like the following would workd.  If not, then 

         // traverse up the component hierarchy to a MultEditorPane

 //        Rectangle drawingArea = 

 //            Globals.curEditor().getJComponent().getVisibleRect();

         thisFig.makeEdgePort();

         FigEdgePort tee = thisFig.getEdgePort();

         thisFig.calcBounds();

         int x = tee.getX();

         int y = tee.getY();

         DiagramSettings settings = ((ArgoDiagram) ((LayerPerspective) lay)

                 .getDiagram()).getDiagramSettings();

         LOG.info("Creating Class box for association class");

         FigClassAssociationClass figNode =

             new FigClassAssociationClass(thisFig.getOwner(), 

                             new Rectangle(x, y, 0, 0),

                             settings);

         y = y - DISTANCE;

         if (y < 0) {

             y = tee.getY() + figNode.getHeight() + DISTANCE;

         }

         if (x + figNode.getWidth() > drawingArea.getWidth()) {

             x = tee.getX() - DISTANCE;

         }

         figNode.setLocation(x, y);

         lay.add(figNode);

         FigEdgeAssociationClass dashedEdge =

             new FigEdgeAssociationClass(figNode, thisFig, settings);

         lay.add(dashedEdge);

         dashedEdge.damage();

         figNode.damage();

     }

 }