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"Lightweight Components"
Vol. 2, Issue 10, p. 50

	

Listing 1.
 
// Pseudo-code 
public void paint(Graphics graphics) { 
  For each Component c child of this Container... 
    if c instanceof Lightweight AND c.isShowing()... 
      Create new Graphics g from graphics 
          using bounding rectangle of c 
      c.paint(g) 
    end if 
  end for 
} 

Listing 2.
 
class MyPanel extends Panel { 
  // ... 
  public void paint(Graphics g) { 
    g.drawImage(imgBackground , 0, 0, this); 
    // Call super.paint() for Lightweights 
    super.paint(g); 
  } 
  // ... 
} 

Listing 3.
 
class MyLightweight extends Lightweight { 
  // ... 
  public void paint(Graphics g) { 
    g.setColor(getForeground()); 
    g.setFont(getFont()); 
    // Other painting code... 
  } 
  // ... 
}

 

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