/*
	This is a small JApplet starbucks order program
	It demonstrate the use of BevelBorder, JCheckBox, & JRadioButton
	
*
*/

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

public class StarbucksApplet extends JApplet
{
	JButton ok;
	JPanel radiopanel;
	JPanel checkboxpanel;
	JPanel mainpanel;
	JRadioButton tall, grande, venti;
	JCheckBox ice_green, coffee, orange_juice;
	
	public void init()
	{
		
		
		// Sets the size of the window
		
		setSize(550, 220);
		
		
		// Creates a button listener
		
		ButtonListener bl = new ButtonListener();
		
		// Create two panels one for JRadioButton and one for the main panel
		
		radiopanel = new JPanel();
		mainpanel = new JPanel();
		
		// Creates a border for JRadioButton
		
		Border b = BorderFactory.createTitledBorder("Size");
		
		// Adds the border to the radio panel
		
		radiopanel.setBorder(b);
		
		// Group the radio buttons together
		
		ButtonGroup radiogroup = new ButtonGroup();
		
		// Add the radio buttons to the panel and group
		
		tall = new JRadioButton("Tall");
		radiopanel.add(tall);
		radiogroup.add(tall);
		
		grande = new JRadioButton("Grande");
		radiopanel.add(grande);
		radiogroup.add(grande);
		
		venti = new JRadioButton("Venti");
		radiopanel.add(venti);
		radiogroup.add(venti);
		
		// Adds the JRadioButton panel to the main panel
		
		mainpanel.add(radiopanel);
		
		// Creates the JCheckBox panel
		
		checkboxpanel = new JPanel();
		
		// Creates a border for the check box panel
		
		Border b2 =  BorderFactory.createTitledBorder("Drinks");
		
		// Adds the border to the check box
		
		checkboxpanel.setBorder(b2);
		
		// Create JCheckbox and add the check boxes into the panel
		
		ice_green = new JCheckBox("Ice Green Tea");
		checkboxpanel.add(ice_green);
		
		coffee = new JCheckBox("Coffee");
		checkboxpanel.add(coffee);
		
		orange_juice = new JCheckBox("Orange Juice");
		checkboxpanel.add(orange_juice);
		
		// adds the check box panel to the main panel
		
		mainpanel.add(checkboxpanel);
		
		// Creates a ok button
		
		ok = new JButton("OK");
		
		/*
			Creates a listener for ok button to listen for any events
			We pass the bl into the parameter, bl is created from the very beginning
			
		*
		*/
		
		ok.addActionListener(bl);
		
		// Adds the ok button into the main panel
		
		mainpanel.add(ok);
		
		// Adds the main panel into the content pane
		
		add(mainpanel);
		
	}
	
	/*
		Inside here, all the events of JCheckBox and JRadioButton will be handled
		
	*
	*/
	
	public class ButtonListener implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			if(e.getSource()==ok)
			{
				String drinks = "";
				
				// Determine what is been selected in JCheck Box
				
				if(ice_green.isSelected())
				{
					drinks += "Ice Green Tea\n";
				}
				if(coffee.isSelected())
				{
					drinks += "Coffee\n";
				}
				if(orange_juice.isSelected())
				{
					drinks += "Orange Juice\n";
				}
				
				// Determine what is been selected in JRadio Button
				
				String msg = "You ordered a ";
				
				if(tall.isSelected())
				{
					msg += " tall " + drinks;
					
				}
				if(grande.isSelected())
				{
					msg += " grande " + drinks;
					
				}
				
				if(venti.isSelected())
				{
					msg += " venti " + drinks;
					
				}
				
				// Outputs the order in JOptionPane
				
				JOptionPane.showMessageDialog(null, msg);
				
				/*
					Deselected all the check box
					Selects tall in radio button
					
				*
				*/
				
				ice_green.setSelected(false);
				coffee.setSelected(false);
				orange_juice.setSelected(false);
				
				tall.setSelected(true);
				
			}
		}
	}

}