// ChangeLine:

// To specify a line style for the plot line:
//    1) Create a new StrokeLineStyle array that defines the line attributes
//    2) Create a BarLineChart and get it's graph model
//    3) Set the line style on the model's DataElementStyles

   import com.sas.measures.BaseLength;
   import com.sas.graphics.components.GraphConstants;
   import com.sas.graphics.components.barlinechart.BarLineChart;
   import com.sas.graphics.components.barlinechart.BarLineChartModel;
   import com.sas.graphics.components.barlinechart.BarLineChartTableDataModel;
   import com.sas.graphics.components.AnalysisVariable;
   import com.sas.graphics.components.ClassificationVariable;
   import com.sas.graphics.components.StrokeLineStyle;
   import com.sas.measures.BaseLength;
   import java.awt.BorderLayout;
   import java.awt.Color;
   import java.awt.Container;
   import java.awt.event.WindowAdapter;
   import java.awt.event.WindowEvent;
   import javax.swing.JFrame;
   import javax.swing.JPanel;
   import javax.swing.table.DefaultTableModel;

   public class ChangeLine extends JPanel  {
     private ChangeLine  theApp;
     public ChangeLine () {
        setLayout(new BorderLayout());

     // 1) Create a new StrokeLineStyle array that defines the line attributes
        StrokeLineStyle[] lineStyle=new StrokeLineStyle[] {
                  new StrokeLineStyle(StrokeLineStyle.SASGRAPH_LINE15,
                      Color.red,
                      new BaseLength(3, "pt"),
                      GraphConstants.TRUE)
        };

     // 2) Create a chart and get it's graph model
        BarLineChart barLineChart=new BarLineChart();
        BarLineChartModel graphModel=barLineChart.getGraphModel();

     // 3) Set the line style on the model's DataElementStyles
        graphModel.getDataElementStyles().setLineStyles(lineStyle);

     // Create a data model and attach the data (defined below)
        BarLineChartTableDataModel dataModel = null;
        dataModel=new BarLineChartTableDataModel(new SampleData());

     // Assign the Category variable role, and optionally the
     // Response variable role, to appropriate variable(s)
        dataModel.setCategoryVariable(
            new ClassificationVariable("EnergyType"));
        dataModel.setBarResponseVariable(
            new AnalysisVariable("Produced"));
        dataModel.setLineResponseVariable(
            new AnalysisVariable("Consumed"));

     // Assign the data model to the BarLineChart
        barLineChart.setDataModel(dataModel);

     // Set a graph title
        barLineChart.getTitle1().setText("Energy Production");

        add(barLineChart, BorderLayout.CENTER);
      }
   // Create the data source
      static private class SampleData extends DefaultTableModel {
        private static Class  columnClass[]={String.class, String.class,
                                             Double.class, Double.class};
        private static String columnNames[]={"EnergyType","Year","Produced","Consumed"};
          public SampleData() {
	    super();
            Object data[][] = {
              {"coal", "1985", new Double(19.33), new Double(17.48) },
              {"gas", "1985", new Double(16.92), new Double(17.85) },
              {"petro", "1985", new Double(21.23), new Double(30.92) },
              {"hydro", "1985", new Double(2.94), new Double(3.36) },
              {"nuclear", "1985", new Double(4.15), new Double(4.15) },
              {"geotherm", "1985", new Double(0.20), new Double(0.20) },

              {"coal", "1986", new Double(19.51), new Double(17.26) },
              {"gas", "1986", new Double(16.47), new Double(16.71) },
              {"petro", "1986", new Double(20.53), new Double(32.20) },
              {"hydro", "1986", new Double(3.03), new Double(3.40) },
              {"nuclear", "1986", new Double(4.47), new Double(4.47) },
              {"geotherm", "1986", new Double(0.22), new Double(0.22) },

              {"coal", "1987", new Double(20.14), new Double(18.01) },
              {"gas", "1987", new Double(17.05), new Double(17.67) },
              {"petro", "1987", new Double(19.89), new Double(32.87) },
              {"hydro", "1987", new Double(2.59), new Double(3.07) },
              {"nuclear", "1987", new Double(4.91), new Double(4.91) },
              {"geotherm", "1987", new Double(0.23), new Double(0.23) },

              {"coal", "1988", new Double(20.94), new Double(18.81) },
              {"gas", "1988", new Double(17.19), new Double(18.60) },
              {"petro", "1988", new Double(19.52), new Double(33.96) },
              {"hydro", "1988", new Double(2.32), new Double(2.62) },
              {"nuclear", "1988", new Double(5.68), new Double(5.68) },
              {"geotherm", "1988", new Double(0.22), new Double(0.22) }
            };
            setDataVector(data, columnNames);
          }
          public Class getColumnClass(int column) {
	    return columnClass[column];
	  }
      } 
      public static void main(String[] args) {
      	  JFrame frame = new JFrame("BIP Graph Sample");
      	  Container container = frame.getContentPane();
          container.setLayout(new BorderLayout());
          container.setBackground(Color.white);

          JPanel bipPanel = new JPanel();
          bipPanel.setLayout(new BorderLayout());
          ChangeLine  bipGraphSample = new ChangeLine ();

          bipPanel.add(bipGraphSample, BorderLayout.CENTER);
          container.add(bipPanel, BorderLayout.CENTER);

          frame.setSize(600,450);
          frame.addWindowListener(new WindowAdapter() {
              public void windowClosing(WindowEvent e) {
                     System.exit(0);
              }
          } );
          frame.setVisible(true);
      }
   }