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


public class Sample3 extends JFrame{    // inherit JFrame

/**
 * Constructor sets up the window and creates a toolbar
 */
  public Sample3() {
//
// setup the frames banner/title bar
//
     super("Sample 3");  // call JFrame's constructor and give it a title
     setSize(300,200);  // set the width of the window to 300 pixels, height to 200.
 //    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // exit the whole program when this frame is closed
    addWindowListener(new WindowAdapter() {      // Quit the application
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
//
//  Create a JToolbar and add it to the panel in the top (North) position
//
    JToolBar tools = new JToolBar(JToolBar.HORIZONTAL);  // create a horizontal tool bar
    getContentPane().add(tools,"North");    // add the tool bar to the panel
//
// Create the buttons, set an action listner for each, and add them to the toolbar
//
    addTextButton(tools,"Open","Open a file",new OpenToolBarListener());  // add text only button
    addImageButton(tools,"save.gif","save","Save the file",new SaveToolBarListener());  // add image and text
    addImageButton(tools,"forward.gif","Forward the email",new ForwardToolBarListener());  // add image only button


  }
/**
 *  This method creates and adds a text button to the tool bar
 *  @param bar reference to a JToolBar
 *  @param text text string to appear on the button
 *  @param tooltip text string to appear when cursor lingers over the button
 *  @param listener reference to an object that implements an ActionListener
 */
void addTextButton(JToolBar bar, String text, String tooltip, ActionListener listener) {

    JButton b1 = new JButton(text);  // create the button
    b1.addActionListener(listener);   // tell it who to send events to
    b1.setToolTipText(tooltip);      // set the tip text
    bar.add(b1);                     // add the button to the toolbar

}
/**
 *  This method creates and adds an image+text button to the tool bar
 *  @param bar reference to a JToolBar
 *  @param file filename of the .gif image file to appear on the button
 *  @param text text string to appear on the button
 *  @param tooltip text string to appear when cursor lingers over the button
 *  @param listener reference to an object that implements an ActionListener
*/
void addImageButton(JToolBar bar, String file, String text, String tooltip, ActionListener listener) {

    ImageIcon icon = new ImageIcon(file); // create an image based on the file
    JButton b1 = new JButton(text,icon);  // create the button
    b1.addActionListener(listener);      // tell it who to send events to
    b1.setToolTipText(tooltip);          // tell it what the tip should be
    bar.add(b1);                         // add the button to the toolbar
}
/**
 *  This method creates and adds an image button to the tool bar
 *  @param bar reference to a JToolBar
 *  @param file filename of the .gif image file to appear on the button
 *  @param tooltip text string to appear when cursor lingers over the button
 *  @param listener reference to an object that implements an ActionListener
 */
void addImageButton(JToolBar bar, String file, String tooltip,ActionListener listener) {

    ImageIcon icon = new ImageIcon(file); // create an image based on the file
    JButton b1 = new JButton(icon);      // create the button
    b1.addActionListener(listener);     // tell it who to send events to
    b1.setToolTipText(tooltip);          // tell it what the tip should be
    bar.add(b1);
}

//
/***********************************************************************
 *
 *  Main routine, Note, this routine can be in any class.
 */
  public static void main(String[] arguments){

    Sample3 fr = new Sample3();  // create the sample 3 frame
    fr.setVisible(true);         // allow it to be seen

  }



/*******************************************************************
 * Inner Listener Classes, one acts as a listener for each user interface item
 *
 *  Alternatively you could just implement one actionPerformed routine
 * in the Frame class, however, that routine would have to do a lot of
 * work just to figure out what menu item, button, etc, created the event.
 * this is easier, cleaner, and isolates code for each UI item
 */

/**
 * Handle the Open toolbar button item
 */
class OpenToolBarListener implements ActionListener{
	public void actionPerformed(ActionEvent event)
	{
	  System.out.println("Open button pressed");
	}
}

/**
 * Handle the Save toolbar button item
 */
class SaveToolBarListener implements ActionListener{
	public void actionPerformed(ActionEvent event)
	{
	  System.out.println("Save button pressed");
	}
}
/**
 * Handle the Forward toolbar button item
 */
class ForwardToolBarListener implements ActionListener{
	public void actionPerformed(ActionEvent event)
	{
	  System.out.println("Forward button pressed");
	}
 }
}