/**
@author  Scott Marshall
@author  University of Glasgow, MSc IT Project 2001
@author  Building an OnLine Course in Computing Fundamentals
*/

package ukacgla_TruthTable;

import ukacgla_ATT.*;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;


/**
Provides specifics for drawing this circuit (ie co ordinates and joining lines)
The generic methods for drawing specific types of gates are in parent class.
*/
public class Ex01_Graphics extends circuitGraphics{

	
	public Ex01_Graphics(frameMaker g, TTRandom r){
		super(g,r);

 	}

	
	/*
	Gate 1 to be drawn at point 50,35 
	Gate 2 to be drawn at point 50,165
	Gate 3 to be drawn at point 300,100
	*/
    public void paintComponent(Graphics g) {
		super.paintComponent(g);
		Graphics2D g2 = (Graphics2D) g;		//Instantiate graphics object
	
		switch (random.getRandom1()) {
			case 0: draw2LinesA(g2); drawOtherLines(g2); drawAndGate(g2,50,35); break;
			case 1:	draw2LinesA(g2); drawOtherLines(g2); drawOrGate(g2,50,35);  break;
			case 2: drawOneLineA(g2); drawOtherLines(g2); drawInverter(g2,50,35);  break;
			case 3:	draw2LinesA(g2); drawOtherLines(g2); drawNandGate(g2,50,35);  break;
			case 4: draw2LinesA(g2); drawOtherLines(g2); drawXOrGate(g2,50,35);  break;			
			
		}		


		switch (random.getRandom2()) {
			case 0: draw2LinesB(g2); drawOtherLines(g2); drawAndGate(g2,50,165);  break;
			case 1:	draw2LinesB(g2); drawOtherLines(g2); drawOrGate(g2,50,165);  break;
			case 2: drawOneLineB(g2);drawOtherLines(g2); drawInverter(g2,50,165);  break;
			case 3:	draw2LinesB(g2); drawOtherLines(g2); drawNandGate(g2,50,165); break;
			case 4: draw2LinesB(g2); drawOtherLines(g2); drawXOrGate(g2,50,165);  break;			
			
		}		

		/*
		Gate 3 MUST be a 2 input gate
		Case 2 deliberately breaks randomness. Result is gate 3 is twice as likely
		to be an XOr gate.
		An Inverter cannot occupy postition 3. 
		*/
		switch (random.getRandom3()) {
			case 0: drawAndGate(g2,300,100);  break;
			case 1:	drawOrGate(g2,300,100);  break;
			case 2: drawXOrGate(g2,300,100);  break; // deliberate breaking of randomness
			case 3:	drawNandGate(g2,300,100); break;
			case 4: drawXOrGate(g2,300,100); break;			
			
		}		

	}

	/*--------------------------------------------
	Drawing coordinates for full circuit of three separate 2 input gates.
	
	a---b
		e|------f
	c---d		|
	            |
				g----------h
						  i|----------j
				q----------r						
				|
	k---l		|						
	   o|-------p
	m---n
	
	
	a = 10,45
	b = 60,45
	c = 10,55
	d = 60,55	
	e = 60,50
	f = 210,50
	g = 210,105
	h = 310,105
	i = 310,115
	j = 450,115	
	
	k = 10,175
	l = 50,175
	m = 10,185
	n = 50,185	
	o = 50,180
	p = 210,180
	q = 210,125
	r = 310,125

	-------------------------------------------*/

	private void draw2LinesA(Graphics g){
		g.drawLine(10,45,60,45);//a to b
		g.drawLine(10,55,60,55);//c to d
		g.drawLine(60,50,210,50);//e to f		
		g.drawString("x1",15,40);
		g.drawString("y1",15,70);		
	}	
	
	
	private void draw2LinesB(Graphics g){
		g.drawLine(10,175,60,175);//k to l
		g.drawLine(10,185,60,185); //m to n	
		g.drawLine(60,180,210,180); //o to p
		g.drawString("a1",15,165);
		g.drawString("b1",15,200);	
	}


	/*--------------------------------------------
	Drawing coordinates for when Gates 1 or 2 are a single input gate.
	
	A-----------B
				
	            
				C----------D
						   E----------F
				I----------J						
										
	G-----------H

	A = 10,50
	B = 210,50
	C = 210,105
	D = 310,105
	E = 310,115
	F = 450,115
	G = 10,180
	H = 210,180
	I = 210,125
	J = 310,125

	--------------------------------------------*/

	private void drawOneLineA(Graphics g){
		g.drawLine(10,50,210,50);//a to b
		g.drawString("x",15,40);
	}
	
	private void drawOneLineB(Graphics g){
		g.drawLine(10,180,210,180);//g to h
		g.drawString("a",15,195);
	}
	
	private void drawOtherLines(Graphics g)	{
		g.drawLine(210,50,210,105); //b to c
		g.drawLine(210,105,310,105);//c to d

		g.drawLine(310,115,450,115);//e to f		
	
		g.drawLine(210,180,210,125);//h to i
		g.drawLine(210,125,310,125);//i to j
		g.drawString("m",130,40);
		g.drawString("n",130,200);
		g.drawString("o",380,105);	
	}
	

}//ends class