colorblend1.java

来自「java 完全探索的随书源码」· Java 代码 · 共 43 行

// ColorBlend1.java

import java.awt.*;
import java.awt.image.*;
import java.applet.Applet;

public class ColorBlend1 extends Applet
{
   Image im;

   public void init ()
   {
      int width = getSize ().width;
      int height = getSize ().height;

      int [] pixels = new int [width * height];

      int index = 0;

      for (int y = 0; y < height; y++)
      {
           int numerator = y * 255;
           int b = numerator / height;
           int r = 255 - numerator / height;

           for (int x = 0; x < width; x++)
           {
                int g = x * 255 / width;
                pixels [index++] = (255 << 24) | (r << 16) | (g << 8)
                                   | b;
           }
      }

      im = createImage (new MemoryImageSource (width, height, pixels,
                                               0, width));
   }

   public void paint (Graphics g)
   {
      g.drawImage (im, 0, 0, this);
   }
}