empty.java

来自「java 图形处理」· Java 代码 · 共 20 行

//package paint2d;

import java.awt.*;
import java.awt.geom.*;

/** An Empty is a Picture that consists of nothing.
    It has no attributes, and only the default constructor.
*/ 

public class Empty extends Picture {

   /** Apply transformation t to this Picture,
       and display it using graphics g2.
       In fact, this operation does nothing!
   */
   public void transDisplay
      (AffineTransform t, Graphics2D g2) {
   }
}