controls.java

Project for interfacing Parallel port of the PC through JAVA application.

// Made by Yasir 05CS86 and Group.

import parport.ParallelPort;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.*;

class Controls extends JFrame implements ActionListener,  ItemListener {	
	private Image Icon;
	private JCheckBox switch1,switch2,switch3;
	private JButton  btnAbout, btnSThanx;
	private JLabel windowlabel, address;
	int data = 0, times = 0, newAdd = 0;
	ParallelPort lpt1 = new ParallelPort(0x378);

	public Controls(){

		Toolkit toolkit = this.getToolkit();
		Dimension d=toolkit.getScreenSize();
		Icon = toolkit.getImage("Images/Icon.jpg");
		this.setBounds(d.width/4,d.height/4,400,300);
		this.setIconImage(Icon);
		setTitle("Parallel Port Interface");
		lpt1.write(8);
		
		addComponents();
	
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
		this.setResizable(false);
		this.setVisible(true);
	}

	
	// Add components to Container.
	public void addComponents(){
		
		Container c = this.getContentPane();
		c.setLayout(null);

		windowlabel= new JLabel("SWITCHES CONTROL PANEL");
		windowlabel.setFont(new Font("Verdana",Font.BOLD,20));
		windowlabel.setBounds(23,8,350,50);
		c.add(windowlabel);		
		
		address = new JLabel ("- Parallel port address is currently defined at 0x378h -");
		address.setFont(new Font("Verdana", Font.ITALIC, 12));
		address.setBounds(23,50,350,20);
		c.add(address);
		
		switch1 = new JCheckBox("Switch 1");
		switch1.setBounds(20,100,100,30);
		switch1.addItemListener(this);
		c.add(switch1);
		
		switch2 = new JCheckBox("Switch 2");
		switch2.addItemListener(this);
		switch2.setBounds(150,100,100,30);
		c.add(switch2);
				
		switch3 = new JCheckBox("Switch 3");
		switch3.addItemListener(this);
		switch3.setBounds(280,100,100,30);
		c.add(switch3);
		
		btnAbout = new JButton("About Group");
		btnAbout.addActionListener(this);
		btnAbout.setBounds(35,210,150,25);
		c.add(btnAbout);
		
		btnSThanx = new JButton("Special Thanx");
		btnSThanx.addActionListener(this);
		btnSThanx.setBounds(210,210,150,25);
		c.add(btnSThanx);
	}
	
	public void itemStateChanged(ItemEvent iE){
		JCheckBox cB = (JCheckBox)iE.getItem();
		int state = iE.getStateChange();
		
		try{

			if (state == ItemEvent.SELECTED){
			/*	if (btnB.getText() == "About Group"){
					System.out.println("Yes it it");
				}*/
				if  (cB.getText() == "Switch 1"){
					data = data + 1;
					times = 1;
				}
				if (cB.getText() == "Switch 2"){
					data = data + 2;
					times = 2;
				}
				if (cB.getText() == "Switch 3"){
					data = data + 4;
					times = 3;
				}
				for (byte i = 1; i <= times; i++){
					Thread.sleep(200);
					lpt1.write((data + 128));
					Thread.sleep(50);
					lpt1.write(data);
				}
			}
			lpt1.write(data);
			times = 0;
		
			if (state == ItemEvent.DESELECTED){
				if  (cB.getText() == "Switch 1"){
					data = data - 1;
					times = 1;
				}
				if (cB.getText() == "Switch 2"){
					data = data - 2;
					times = 2;
				}
				if (cB.getText() == "Switch 3"){
					data = data - 4;
					times = 3;
				}
				
				lpt1.write((data + 128));
				Thread.sleep(500);
				lpt1.write(data);
				
				for (byte i = 1; i <= times; i++){
					Thread.sleep(200);
					lpt1.write(data+128);
					Thread.sleep(50);
					lpt1.write(data);
				}				
				
				lpt1.write(data);
			}
			if (data == 0)
				lpt1.write(8);
		}			
		catch(Exception x){};
	}
	public void actionPerformed(ActionEvent aE){
		if (aE.getSource() == btnAbout)
			JOptionPane.showMessageDialog(null, "My Group:\n\n- Yasir Karim Qureshi (05CS86)" +
					"\n- 05CS05\n- 05CS12\n- 05CS42\n- 05CS66\n\n Our Group is Best!!!");
		if (aE.getSource() == btnSThanx)
			JOptionPane.showMessageDialog(null, "Special Thanx to\n\n 'Sir Manzoor Hashmani'\n" +
					"And 'Sir Shahzad Nizamani'\n" +
					"\n who made us able to achieve this approach!");
	}
	
	public static void main(String[] args){
		new Controls();
	
	}
}