package tangentLine;

import java.applet.*;
import java.awt.*;
import functionParser.*;
import graphingApplet.*;


public class TangentSlate extends ReportingSlate{
	
	Ssub subscriber;
	
	private int pWidth;
	private int pHeight;
	
	
	Button clear;
	Button in;
	Button out;
	
	
	
public TangentSlate(MessageCenter mcent, String name){
	super(mcent,name);
	pWidth = 260;
	pHeight = 207;
	resize(pWidth,pHeight);
	subscriber = new Ssub("slopes",this); 
	subscriber.intDataArray = new IntData[1];
	subscriber.intDataArray[0] = new IntData("clicked",0);
	subscriber.doubleDataArray = new DoubleData[3];
	subscriber.doubleDataArray[0] = new DoubleData("x_0",0.0);
	subscriber.doubleDataArray[1] = new DoubleData("y_0",0.0);
	subscriber.doubleDataArray[2] = new DoubleData("tangentSlope",0.0);
	subscriber.stringDataArray = new StringData[0];
	subscriber.subscribe(mc);
	
	bp = new ButtonPad(2,3);
	
	
	in  = new Button("zoom in");
	bp.place(in,0,0);
	out  = new Button("zoom out");
	bp.place(out,0,2);
	clear = new Button("clear");
	bp.place(clear,1,1);
	
	add("North",bp);
	can.resize(268,180);
	add("Center",can);
	
	}
	
public void paint(Graphics g){
    
	
	
	report();
	
	}// END OF PAINT
	
public void report(){
    Graphics g = can.getGraphics();
	g.setColor(Color.white);
	g.fillRect(0,0,255,180);
	g.setColor(Color.black);
	g.draw3DRect(0,0,255,179,true);
	//DRAW STRINGS HERE
	if(mc.readIntData("clicked") >0){
	g.drawString("(x_0,y_0) = (" +
	formatter.formatDouble(mc.readDoubleData("x_0"),4) +
	"," +
	formatter.formatDouble(mc.readDoubleData("y_0"),3) + ")", 5,15);
	g.drawString("The tangent line slope is " +
	formatter.formatDouble(mc.readDoubleData("tangentSlope"),4),5,35);
	}
	
	
	
	}//END OF METHOD
public boolean action(Event e,Object arg){
		if(e.target instanceof Button){
		
		
		if(((String)arg).equals("clear")){
		mc.cleanParentInput();
		mc.refreshParent();
		}
		
		else if(((String)arg).equals("zoom in")){
		mc.runNamedStndParentMeth("in",0,0);
		mc.refreshParent();
		}
		
		else if(((String)arg).equals("zoom out")){
		mc.runNamedStndParentMeth("out",0,0);
		mc.refreshParent();
		}
		
		repaint();
			
		return true;
		}
		else return false;
	}
	
	
	
	
public Dimension getMinimumSize(){
  return new Dimension(pWidth,pHeight);}
  
public Dimension getPreferredSize(){
  return new Dimension(pWidth,pHeight);}
	
		
		
	
}