/*
	Shawn C. Stalder

	From_Base.java
	Objectives:
	1) Convert from any base chosen by the user to base 10
*/

// imports
import javax.swing.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.text.*;

public class From_Base extends Applet implements ActionListener
{
	// globals
	private int num[];

	// buttons, textbox, textarea
	private TextField txt_num;
	private TextField txt_base;
	private Button btn_con;
	private Button btn_clear;
	private TextArea txa_result;

	// Fonts
	private Font Arial;
	private Font Norm;

	public void init()
	{
		setLayout(null);

		// set objects
		txt_num = new TextField();
		txt_base = new TextField();
		btn_con = new Button("Convert");
		btn_clear = new Button("Clear");
		txa_result = new TextArea();

		// position objects
		txt_num.setBounds(10, 40, 120, 40);
		txt_base.setBounds(140, 40, 50, 40);
		btn_con.setBounds(10, 90, 120, 40);
		btn_clear.setBounds(140, 90, 120, 40);
		txa_result.setBounds(10, 140, 400, 60);

		// add objects to the form
		add(txt_num);
		add(txt_base);
		add(btn_con);
		add(btn_clear);
		add(txa_result);

		// set action listener to button
		btn_con.addActionListener(this);
		btn_clear.addActionListener(this);

		// initialize font
		Arial = new Font("Arial", Font.PLAIN, 28);
		Norm = new Font("Arial", Font.BOLD, 18);
		setFont(Arial);
	}

	public void actionPerformed(ActionEvent e)
	{
		Object source = e.getSource();

		if(source == btn_con)
		{
			// variables
			String input;
			int base;
			int size;
			int temp1;
			int ans;

			// get size
			input = txt_num.getText();
			input = input.trim();
			size = input.length();
			System.out.println(input);
			System.out.println(size);

			// set number into array and convert letters to numbers
			num = new int[size];
			for(int i = 0; i < size; i++)
			{
				if(input.charAt(i) == 'A' || input.charAt(i) == 'a')
				{
					num[i] = 10;
				}
				else if(input.charAt(i) == 'B' || input.charAt(i) == 'b')
				{
					num[i] = 11;
				}
				else if(input.charAt(i) == 'C' || input.charAt(i) == 'c')
				{
					num[i] = 12;
				}
				else if(input.charAt(i) == 'D' || input.charAt(i) == 'd')
				{
					num[i] = 13;
				}
				else if(input.charAt(i) == 'E' || input.charAt(i) == 'e')
				{
					num[i] = 14;
				}
				else if(input.charAt(i) == 'F' || input.charAt(i) == 'f')
				{
					num[i] = 15;
				}
				else if(input.charAt(i) == 'G' || input.charAt(i) == 'g')
				{
					num[i] = 16;
				}
				else if(input.charAt(i) == 'H' || input.charAt(i) == 'h')
				{
					num[i] = 17;
				}
				else if(input.charAt(i) == 'I' || input.charAt(i) == 'i')
				{
					num[i] = 18;
				}
				else if(input.charAt(i) == 'J' || input.charAt(i) == 'j')
				{
					num[i] = 19;
				}
				else if(input.charAt(i) == 'K' || input.charAt(i) == 'k')
				{
					num[i] = 20;
				}
				else if(input.charAt(i) == 'L' || input.charAt(i) == 'l')
				{
					num[i] = 21;
				}
				else if(input.charAt(i) == 'M' || input.charAt(i) == 'm')
				{
					num[i] = 22;
				}
				else if(input.charAt(i) == 'N' || input.charAt(i) == 'n')
				{
					num[i] = 23;
				}
				else if(input.charAt(i) == 'O' || input.charAt(i) == 'o')
				{
					num[i] = 24;
				}
				else if(input.charAt(i) == 'P' || input.charAt(i) == 'p')
				{
					num[i] = 25;
				}
				else if(input.charAt(i) == 'Q' || input.charAt(i) == 'q')
				{
					num[i] = 26;
				}
				else if(input.charAt(i) == 'R' || input.charAt(i) == 'r')
				{
					num[i] = 27;
				}
				else if(input.charAt(i) == 'S' || input.charAt(i) == 's')
				{
					num[i] = 28;
				}
				else if(input.charAt(i) == 'T' || input.charAt(i) == 't')
				{
					num[i] = 29;
				}
				else if(input.charAt(i) == 'U' || input.charAt(i) == 'u')
				{
					num[i] = 30;
				}
				else if(input.charAt(i) == 'V' || input.charAt(i) == 'v')
				{
					num[i] = 31;
				}
				else if(input.charAt(i) == 'W' || input.charAt(i) == 'w')
				{
					num[i] = 32;
				}
				else if(input.charAt(i) == 'X' || input.charAt(i) == 'x')
				{
					num[i] = 33;
				}
				else if(input.charAt(i) == 'Y' || input.charAt(i) == 'y')
				{
					num[i] = 34;
				}
				else if(input.charAt(i) == 'Z' || input.charAt(i) == 'z')
				{
					num[i] = 35;
				}
				else
				{
					temp1 = input.charAt(i) - 48;
					num[i] = temp1;
				}
			}

			// get base
			input = txt_base.getText();
			input = input.trim();
			base = Integer.parseInt(input);

			// display converted answer
			ans = Convert(num, base, size);
			txa_result.setText("");
			txa_result.append(String.valueOf(ans));
		}
		else if(source == btn_clear)
		{
			txt_num.setText("");
			txt_base.setText("");
			txa_result.setText("");
		}
	}

	public int Convert(int num[], int base, int size)
	{
		int temp = 0;
		int i = 0;

		do
		{
			temp = (temp * base) + num[i];
			System.out.println(temp);
			i++;
		}while(i < size);

		return temp;
	}

	public void paint(Graphics g)
	{
		setSize(430, 210);
		setBackground(new Color(0, 100, 200));
		g.setFont(Norm);
		g.drawString("Number", 10, 30);
		g.drawString("Base", 140, 30);
	}
}