import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
public class OntoSliders extends JPanel implements ChangeListener{
   OntoApp oa;
   JSlider[] sliders;
   JSlider masterSlider;
   JTextField[] stfs;
   public OntoSliders(OntoApp oa){
      this.oa=oa;   
   }
   public void initialize(){
      int masterNr=4;
      removeAll();
      setLayout(new GridLayout(oa.od.parameters.length+((oa.od.parameters.length>masterNr)?1:0),1));
      sliders=new JSlider[oa.od.parameters.length];
      stfs=new JTextField[oa.od.parameters.length];
      for(int i=0; i<oa.od.parameters.length; i++){
         sliders[i]=new JSlider(0, 100, 100);
         stfs[i]=new JTextField("1.0", 4);
         JPanel p=new JPanel(new BorderLayout());
         JPanel p2=new JPanel(new BorderLayout());
         p.add(new JLabel(oa.od.parameters[i]), BorderLayout.WEST);
         p2.add(sliders[i], BorderLayout.CENTER);
         p2.add(new JLabel("   "), BorderLayout.EAST);
         p.add(p2, BorderLayout.SOUTH);
         p.add(stfs[i], BorderLayout.EAST);
         add(p);
//         sliders[i].setPaintLabels(true);
//         sliders[i].setPaintTicks(true);
//         sliders[i].setPaintTrack(true);
         sliders[i].addChangeListener(this);
      }
      if(sliders.length>masterNr){
         masterSlider=new JSlider(0, 100, 100);
         JPanel p=new JPanel(new BorderLayout());
         JPanel p2=new JPanel(new BorderLayout());
         p2.add(masterSlider, BorderLayout.CENTER);
         p2.add(new JLabel("   "), BorderLayout.EAST);
         p.add(p2, BorderLayout.SOUTH);
         p.add(new JLabel("Master slider"), BorderLayout.NORTH);
         masterSlider.addChangeListener(this);  
         add(p);       
      }
      validate();
   }
   public Dimension getPreferredSize(){
      return new Dimension(150, 50*sliders.length);
   }

   public void stateChanged(ChangeEvent e){
    if(e.getSource()==masterSlider){
       for(int i=0; i<sliders.length; i++){
          sliders[i].setValue(masterSlider.getValue());
       }  
    }
    for(int i=0; i<sliders.length; i++){
        oa.od.perspective[i]=sliders[i].getValue()/100.0;
        stfs[i].setText(oa.od.perspective[i]+"");
    }
    
   }
}