package org.lcsim.plugin.conditions;
   
   import hep.graphics.heprep.HepRep;
   import hep.graphics.heprep.HepRepFactory;
   import hep.graphics.heprep.HepRepReader;
   import java.io.BufferedInputStream;
   import java.io.FileInputStream;
   import java.io.InputStream;
   import java.util.zip.GZIPInputStream;
  import javax.swing.event.ChangeEvent;
  import javax.swing.event.ChangeListener;
  import org.freehep.application.Application;
  import org.freehep.jas.util.OpenLocalFilePanel;
  import org.freehep.swing.ExtensionFileFilter;
  import org.freehep.swing.wizard.Finishable;
  import org.freehep.swing.wizard.WizardPage;
  import org.lcsim.conditions.ConditionsReader;
  import org.lcsim.util.loop.DummyConditionsConverter;
  
  /**
   *
   * @author tonyj
   * @version $Id: HepRepSelectWizardPage.java,v 1.2 2007/09/11 00:21:02 tonyj Exp $
   */
  class HepRepSelectWizardPage extends WizardPage implements Finishable, ChangeListener
  {
     private ConditionsWizardPage wp;
     private OpenLocalFilePanel olfp;
     /** Creates new form ConditionsAliasWizardPage */
     HepRepSelectWizardPage(ConditionsWizardPage wp)
     {
        this.wp = wp;
        this.olfp = new OpenLocalFilePanel("heprep",new HepRepFileFilter(),false,true);
        initComponents();
        olfp.addChangeListener(this);
        stateChanged(null);
     }
     
     /** This method is called from within the constructor to
      * initialize the form.
      * WARNING: Do NOT modify this code. The content of this method is
      * always regenerated by the Form Editor.
      */
     // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
     private void initComponents()
     {
        java.awt.GridBagConstraints gridBagConstraints;
  
        jPanel1 = olfp;
        jLabel2 = new javax.swing.JLabel();
        jTextField2 = new javax.swing.JTextField();
  
        setLayout(new java.awt.GridBagLayout());
  
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        add(jPanel1, gridBagConstraints);
  
        jLabel2.setText("Field:");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.RELATIVE;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
        gridBagConstraints.insets = new java.awt.Insets(0, 0, 0, 5);
        add(jLabel2, gridBagConstraints);
  
        jTextField2.setColumns(10);
        jTextField2.setText("5");
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
        add(jTextField2, gridBagConstraints);
  
     }// </editor-fold>//GEN-END:initComponents
     
     public void onFinish()
     {
        try
        {
           InputStream in = new FileInputStream(olfp.getFile());
           try
           {
              double field = Double.parseDouble(jTextField2.getText());
              
              if (olfp.getGZIPed()) in = new GZIPInputStream(in);
              else in = new BufferedInputStream(in);
              HepRepReader reader = HepRepFactory.create().createHepRepReader(in);
              HepRep hepRep = reader.next();
              
              String detectorName = wp.getDetectorName();
              InteractiveConditionsManagerImplementation cm = wp.getConditionsManager();
              ConditionsReader dummyReader = ConditionsReader.createDummy();
              cm.setConditionsReader(dummyReader, detectorName);
              HepRepOnlyDetector detector = new HepRepOnlyDetector(detectorName, hepRep, field);
              cm.registerConditionsConverter(new DummyConditionsConverter(detector));
              cm.setDetectorFound(true);
              
              olfp.saveState();
              dispose();
          }
          finally
          {
             in.close();
          }
          
          
       }
       catch (Exception x)
       {
          Application.error(this,"Error handling heprep",x);
       }
    }
    
    public void stateChanged(ChangeEvent e)
    {
       this.setFinishEnabled(olfp.isFileSelected());
    }
    
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField2;
    // End of variables declaration//GEN-END:variables
    
    private class HepRepFileFilter extends ExtensionFileFilter
    {
       HepRepFileFilter()
       {
          super(new String[]{".heprep", ".heprep.gz"}, "HepRep file");
       }
    }
 }