Some unwanted behaviour

[Jacky Luk]

    public void changeChart()
    {
  
        patientDis.changeDataset(db.getAllPatientsData());
        livingAreaDis.changeDataset(db.getAllPatientByArea());
        
        
 
    }

    private void refresh() throws ParseException
    {
       
       db.LoadMainData();
       db.UpdateTable();
       model.fireTableDataChanged();
       jTable1.repaint();
       changeChart();
     }

I've got a refresh() method that refreshes everything whenever a CRUD is finished.
The thing is when this method is called within refresh(), this method will take me to the livingAreaDis JFreeChart even though patientDis JTabbedPane was active.

How do I make JTabbedPane + JFreeChart display consistently and correctly?
Thanks
Jack

[Jacky Luk]

// inherited class

package boksspatientapplication;

import java.awt.Font;
import java.io.File;
import java.util.List;
import java.util.Locale;

import javax.swing.JPanel;
 
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;

import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
/**
 *
 * @author Garfield
 */
public abstract class ChartCanvas 
{
   
     public ChartCanvas(String str)
     {   
          name = str;
     }
     
      protected void changeDataset(List<List<PatientRec>> _data)
     {
         dataset.clear();
         dataset = createDataset(_data);
         chart.fireChartChanged();
     }
    
      
     abstract DefaultPieDataset createDataset(List<List<PatientRec>> data);

     protected JFreeChart createChart(final DefaultPieDataset dataset) {

         JFreeChart chart = ChartFactory.createPieChart(name, dataset, true, true, Locale.TAIWAN);

         chart.getTitle().setFont(new Font("新細明體", Font.BOLD, 22));
         
         
        PiePlot plot = (PiePlot) chart.getPlot();
        plot.setLabelFont(new Font("新細明體", Font.PLAIN, 12));
        chart.getLegend().setItemFont(new Font("新細明體", Font.BOLD, 22));  
        plot.setNoDataMessage("No data available");
        plot.setCircular(false);
        plot.setLabelGap(0.02);
        return chart;
     } 
    
    /**
     * Creates a chart.
     * 
     * @param dataset  the dataset.
     * 
     * @return A chart.
     */
     
    protected JPanel createDemoPanel(Database _db) {
      
         
        db = _db;
        dataset = new DefaultPieDataset();
         
        chart = createChart(createDataset(db.getAllPatientsData()));
        
        ChartPanel cp = new ChartPanel(chart);
        //cp.setPreferredSize(new java.awt.Dimension(500, 300));
        return cp; 
        
    }
    
    
    public void saveToPNG(String filename)
    {
        try {
            final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
            final File file1 = new File(filename);
            ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info);
            
            
        } catch(Exception e)
        {
            e.printStackTrace();
        }
        
    }
    static Database db;
    DefaultPieDataset dataset;
    JFreeChart chart;
    String name;
  
}

derived classes:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package boksspatientapplication;

import java.util.List;
import org.jfree.data.general.DefaultPieDataset;

/**
 *
 * @author JACKY
 */
public class PatientDistribution extends ChartCanvas {
    
    public PatientDistribution(String _name)
    {
        super(_name);
    }
    
     
     
      protected DefaultPieDataset createDataset(List<List<PatientRec>> data)
      {

        // create the dataset...
        int total_Patients = db.getTotalPatient();
        Object[] object = new Object[data.size()];
        for (int i = 0; i < data.size(); i++)
        {
           if (data.get(i).size() != 0) // i = 0 is not set
            {
                dataset.setValue(data.get(i).get(0).getHospital().getHospitalName(),
                 new Double ((double)data.get(i).size()/ total_Patients)*100.0);
            }
         }
         return dataset;        
         
    } 
    
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package boksspatientapplication;

 
import java.awt.Font;
import java.util.ArrayList;
import java.util.ArrayList;
import java.util.List;
import java.util.List;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;

/**
 *
 * @author Garfield
 */
public class LivingAreaDistribution extends ChartCanvas
{
    public LivingAreaDistribution(String str)
    {
        super(str);
    }
    
     protected DefaultPieDataset createDataset(List<List<PatientRec>> data) 
     {
               int total_Patients = db.getTotalPatient();
         
               // get number of living areas
               Object[] object = new Object[data.size()];

               for (int i = 0; i < data.size(); i++)
               {
                   if (!data.get(i).isEmpty())
                   {
                       dataset.setValue(data.get(i).get(0).getPatient().getPatientArea(),
                        new Double ((double)data.get(i).size()/ total_Patients)*100.0);

                   }
               }
        return dataset;
    }    
}

I don't know why the charts are very unstable....
Please help.... quite urgent. Thanks

The problem is the First Tab is active, the second Chart is displayed
or the second tab is active, the first chart is displayed, but not always

Jack

[Rob Spoor]

Jacky Luk wrote:Please help.... quite urgent. Thanks

You've been around here long enough to know that you should EaseUp.