import java.awt.*;
   import java.awt.event.*;

//class to make an animated button using images.
//Written by Mark Bernard
//mark.bernard@home.com
   class ImageButton extends Button implements MouseListener {
      Image i[];
      int select=1;
      int w=0;
      int h=0;
      int iw,ih;
   
   //The constructor requires 4 images as described below.
   // 1. Greyed out image of the button
   // 2. Normal/unselected image
   // 3. Hover image(if mouse is hovering over the button
   // 4. Pressed image
   //Please note that the image will always take up the entire
   //display of the button.  If layout managers are used
   //the image will be stretched to fit the area layed out.
      public ImageButton(Image im[]) {
         super(" ");
         i=new Image[4];
         i=im;
         iw=i[0].getWidth(this);
         ih=i[0].getHeight(this);
         setSize(iw,ih);
         addMouseListener(this);
      }
   
      public Dimension getPreferredSize() {
         return new Dimension(iw,ih);
      }
   
      public Dimension getMinimumSize() {
         return new Dimension(iw,ih);
      }
   
      public void setBounds(int x,int y,int width, int height) {
         w=width;
         h=height;
         super.setBounds(x,y,width,height);
      }
   
      public void setSize(int width,int height) {
         w=width;
         h=height;
         super.setSize(width,height);
      }
   
      public void setEnabled(boolean e) {
         if(e) {
            select=1;
         }
         else {
            select=0;
         }
         repaint();
         super.setEnabled(e);
      }
   
      public void paint(Graphics g) {
         g.drawImage(i[select],0,0,w,h,this);
      }
   
      public void mouseClicked(MouseEvent e) {
      }
   	
      public void mouseEntered(MouseEvent e) {
         if(select!=0) {
            select=2;
            repaint();
         }
      }
   	
      public void mouseExited(MouseEvent e) {
         if(select!=0) {
            select=1;
            repaint();
         }
      }
   	
      public void mousePressed(MouseEvent e) {
         if(select!=0) {
            select=3;
            repaint();
         }
      }
   	
      public void mouseReleased(MouseEvent e) {
         if(select!=0) {
            select=2;
            repaint();
         }
      }
   }