// ColorBars:

// To set bar colors so that they represent a chart variable's values:
//    1) Call the data model's setStyleByVariable() to specify the
//       variable whose values will be represented by the colors
//    2) Call the graph model's setColorPaletteType() method to set
//       a three-color palette
//    3) Get the graph model's DataElementStyles to set start, end, and
//       neutral colors for the bars
   import com.sas.graphics.components.waterfallchart.WaterfallChart;
   import com.sas.graphics.components.waterfallchart.WaterfallChartTableDataModel;
   import com.sas.graphics.components.AnalysisVariable;
   import com.sas.graphics.components.ClassificationVariable;
   import com.sas.graphics.components.GraphConstants;
   import javax.swing.table.DefaultTableModel;
   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;

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

     // Create a WaterfallChart and a data source 
        WaterfallChart waterfallChart=new WaterfallChart();
        SampleData dataTable=new SampleData();

     // Create a data model and attach the data source
        WaterfallChartTableDataModel dataModel=
                  new WaterfallChartTableDataModel();
        dataModel.setModel(dataTable);

     // Assign the variable roles and sort category values in descending order
        dataModel.setCategoryVariable(
                 new ClassificationVariable("Id", GraphConstants.SORT_DESCENDING));

     // Assign the Response variable role and apply the NLMNLUSD format so
     // that Transaction amounts in the output are displayed in an
     // internationalized representation of US dollars.
        dataModel.setResponseVariable(
                  new AnalysisVariable("Transaction", "nlmnlusd"));

     // 1) Specify the variable whose values will be represented by the colors
        dataModel.setStyleByVariable(dataModel.getResponseVariable());

     // 2) Set a three-color palette
        waterfallChart.getGraphModel().setColorPaletteType(GraphConstants.COLOR_PALETTE_THREE_COLOR_CONTINUOUS);

     // 3) Assign the data-element colors
        waterfallChart.getGraphModel().getDataElementStyles().setContinuousFillThreeColorStartColor(Color.red);
        waterfallChart.getGraphModel().getDataElementStyles().setContinuousFillThreeColorNeutralColor(Color.black);
        waterfallChart.getGraphModel().getDataElementStyles().setContinuousFillThreeColorEndColor(Color.green);

     // Call the data model's setCategorySortVariable() method
     // to sort bars according to the values of the response variable
        dataModel.setCategorySortVariable(dataModel.getResponseVariable());

     // Assign the data model to the WaterfallChart
        waterfallChart.setDataModel(dataModel);

     // Set a graph title
        waterfallChart.getTitle1().setText("BIP Waterfall Chart");
        add(waterfallChart, BorderLayout.CENTER);
      }
     // Create the data source
        static private class SampleData extends DefaultTableModel {
          private static Class  columnClass[]={Double.class, String.class};
          private static String columnNames[]={  "Transaction"  ,  "Id"  };
            public SampleData() {
	      super();
              Object data[][] = {
                                  {new Double(  23),"D"}
                                , {new Double(  85),"C"}
                                , {new Double(  27),"A"}
                                , {new Double( -20),"E"}
                                , {new Double( 125),"B"}
                                , {new Double(   3),"F"}
                                , {new Double(   6),"G"}
                                , {new Double( 142),"H"}
                                , {new Double(-117),"I"}
                                , {new Double(  26),"J"}
                                , {new Double(  73),"K"}
                                , {new Double(  16),"L"}
                                , {new Double( -82),"M"}
                                , {new Double(  93),"N"}
                                , {new Double( 126),"O"}
              };
              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());
          ColorBars  bipGraphSample = new ColorBars ();

          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);
        }
     }