/*
 * Licensed Materials - Property of Rogue Wave Software, Inc. 
 * © Copyright Rogue Wave Software, Inc. 2014, 2017 
 * © Copyright IBM Corp. 2009, 2014
 * © Copyright ILOG 1996, 2009
 * All Rights Reserved.
 *
 * Note to U.S. Government Users Restricted Rights:
 * The Software and Documentation were developed at private expense and
 * are "Commercial Items" as that term is defined at 48 CFR 2.101,
 * consisting of "Commercial Computer Software" and
 * "Commercial Computer Software Documentation", as such terms are
 * used in 48 CFR 12.212 or 48 CFR 227.7202-1 through 227.7202-4,
 * as applicable.
 */


import ilog.views.diagrammer.IlvDiagrammer;
import ilog.views.diagrammer.IlvDiagrammerException;
import ilog.views.diagrammer.project.IlvDiagrammerProject;
import ilog.views.sdm.util.IlvSDMMutableStyleSheet;

import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.io.IOException;
import java.net.URL;

/**
 * A graph layout diagrammer contains the graph to layout.
 *
 *
 */
public class GraphLayoutDiagrammer extends IlvDiagrammer {

    private IlvSDMMutableStyleSheet styleSheet;

    /**
     * 
     * @param projectURL
     */
    public GraphLayoutDiagrammer(URL projectURL){  
        super();

        setSelectMode(false);
        setScrollable(false);
        setEditingAllowed(false);        
        setBackground(null);
        setOpaque(false);
        getView().setBackground(new java.awt.Color(0,0,0,0));
        getView().setForeground(null);
        getView().setTransparent(true);

        styleSheet = new IlvSDMMutableStyleSheet(getEngine(), true, false);

        if(projectURL!=null){
            IlvDiagrammerProject project;
            try {
                project = new IlvDiagrammerProject(projectURL);
                setProject(project);

            } catch (IlvDiagrammerException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        // Cascade the main style sheet with the mutable style sheet.
        // The mutable style sheet holds the temporary style changes that are
        // not statically stored in the main style sheet.
        try {
          getEngine().setStyleSheets(1, styleSheet.toString());
        } catch (Exception e) {
          System.out.println("could not load the style sheet");
        }
        
        addComponentListener(new ComponentListener(){

            Override
            public void componentHidden(ComponentEvent arg0) {
            }

            Override
            public void componentMoved(ComponentEvent arg0) {
            }

            Override
            public void componentResized(ComponentEvent arg0) {
                fitToContents();
            }

            Override
            public void componentShown(ComponentEvent arg0) {
            }
            
        });
    }         
    
    /**
     * Returns the mutable style sheet.
     */
    public IlvSDMMutableStyleSheet getMutableStyleSheet()
    {
      return styleSheet;
    }

}