import java.awt.*;
import java.awt.event.*;

public class ControlPanel extends Panel {
private ControlValue HH;
private ControlValue bN;
private ControlValue nnGW;
private ControlValue Bmax;
private Reactor parent;

ControlPanel(Reactor up)
		{parent = up;
		setLayout(new GridLayout(0,1));
		setBackground(new Color(0.7F,0.8F,0.7F));
		HH = new ControlValue(parent, "HH", 0.0, 2.0, 1.0);
		add(HH);
		bN = new ControlValue(parent, "betaN", 0.0, 10.0, 2.2);
		add(bN);
		nnGW = new ControlValue(parent, "nnGW", 0.0, 3.0, 1.15);
		add(nnGW);
		Bmax = new ControlValue(parent, "Bmax", 5.0, 20.0, 12.5);
		add(Bmax);
		}

public Insets getInsets() {return new Insets(10,10,10,10);}

public double getHH() {return HH.getVal();}
public double getbN() {return bN.getVal();}
public double getnnGW() {return nnGW.getVal();}
public double getBmax() {return Bmax.getVal();}
}

class ControlValue extends Panel {
private final int RANGE=100;
CustomScrollbar scroll;
TextField txt;
double scrollMin, scrollMax, scrollRef;
double value;
Reactor parent;

	public double getVal()
	{ return value;}
	
	void handleText(String st)
	{if(st.equals("")) st = "0.";
	Double d;
	d = new Double(st);
	value = d.doubleValue();
	//txt.setText(String.valueOf(value));
	scroll.setValue(double2int(value));
	}

	void handleScroll(int v)
	{value = int2double(v);
	txt.setText(String.valueOf(value));
	}
	
	double clean(double val)
	{return(Math.floor(val*1000.)/1000.);}

	double int2double(int val)
	{double ret = (double)val / RANGE * (scrollMax - scrollMin) + scrollMin;
	return(clean(ret));}
	
	int double2int(double ref)
	{int v = ((int)(RANGE * (ref - scrollMin) / (scrollMax - scrollMin)));
	if(v < 0) v= 0;
	if(v> RANGE) v=RANGE;
	return(v);
	}

	ControlValue(Reactor up, String name, double min, double max, double ref)
	{parent = up;
	scrollMin = min; scrollMax = max; scrollRef = ref;
	GridLayout g1 = new GridLayout(2,1);
	
	setLayout(new GridLayout(2,1));
	
	Panel pan = new Panel();
	add(pan);

	pan.setLayout(new GridLayout(1,2));
	pan.add(new Label(name));
	
	txt = new TextField(String.valueOf(ref),6);
	txt.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e){
			String v = ((TextField)e.getSource()).getText();
			parent.debug = v;
			parent.repaint();
			handleText(v);
			}
		});
		
	pan.add(txt);

	scroll = new CustomScrollbar(double2int(ref));
	scroll.addAdjustmentListener(new AdjustmentListener() {
			public void adjustmentValueChanged(AdjustmentEvent e) {
				int v = ((Scrollbar)e.getSource()).getValue();
				handleScroll(v);
				parent.repaint();
			}
	});
	
	add(scroll);
	
	value = ref;
	}

	public Insets getInsets() {
	return new Insets(10,10,10,10);
	}
}

class CustomScrollbar extends Panel {
	private final int RANGE = 100;
	Scrollbar scroll;

  public void addAdjustmentListener(AdjustmentListener a)
		{scroll.addAdjustmentListener(a);
		}
		
	public CustomScrollbar(int ref)
	{setLayout(new GridLayout(1,1));
	scroll = new Scrollbar(Scrollbar.HORIZONTAL, ref, 0, 0, RANGE);
	add(scroll);
	}
	
	public Insets getInsets() {
	return new Insets(3,0,3,0);
	}

	public void setValue(int v)
	{scroll.setValue(v);
	}

	public int getValue()
	{return(scroll.getValue());}
}