/*
 * 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.
 */

package faces.dhtml;

import ilog.views.chart.IlvChart;
import ilog.views.chart.data.IlvDataSet;
import ilog.views.chart.faces.dhtml.IlvFacesChartImageMapGenerator;
import ilog.views.chart.servlet.IlvDefaultIMapAttributes;
import ilog.views.chart.servlet.IlvDefaultIMapDefinition;
import ilog.views.chart.servlet.IlvIMapAttributes;
import ilog.views.chart.servlet.IlvIMapDefinition;

/**
 * A basic Chart image map generator.
 */
public class ImapGenerator implements IlvFacesChartImageMapGenerator {

  Override
  public IlvIMapDefinition createImageMapDefinition(IlvChart chart) {
    IlvDefaultIMapDefinition mapdef = null;
    IlvDataSet[] dataset = chart.getDataSource().getDataSets();

    IlvIMapAttributes[][] attributes = new IlvIMapAttributes[dataset.length][];
    for (int i = 0; i < dataset.length; i++) {
      IlvDataSet set = dataset[i];
      int n = set.getDataCount();
      attributes[i] = new IlvIMapAttributes[n];
      for (int j = 0; j < n; j++) {
        final double y = set.getYData(j);
        attributes[i][j] = new IlvDefaultIMapAttributes("javascript:void(0)") {
          Override
          public String getExtraAttributes() {
            return "onmousemove=\"alert('" + y + "');return true;\" ";
          }
        };
      }
    }
    try {
      mapdef = new IlvDefaultIMapDefinition(dataset, attributes);
    } catch (IllegalArgumentException e) {
      System.err.println("Cannot create map definition :" + e.getMessage());
    }
    return mapdef;
  }

}