20100918_Dawning_图片平铺

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package com.swing.demo; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Image; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.JComponent; import javax.swing.JFrame; /** * * 图像 * * @author Administrator * */ public class ImageTest { public static void main(String[] args) { EventQueue.invokeLater(new Runnable(){ public void run() { ImageFrame frame = new ImageFrame(); frame.setDefaultCloseOperation(3); frame.setVisible(true); } }); } } class ImageFrame extends JFrame{ public ImageFrame(){ setTitle("ImageTest"); setSize(300,200); ImageComponent component = new ImageComponent(); add(component); } } class ImageComponent extends JComponent{ public ImageComponent(){ try{ //读取src目录下的图片 image = ImageIO.read(new File("src/blue-ball.gif")); } catch(IOException e){ e.printStackTrace(); } } public void paintComponent(Graphics g){ if(image == null){ System.out.println("图片为空！"); return ; } int imageWidth = image.getWidth(this); int imageHeight = image.getHeight(this); g.drawImage(image,0,0,null); for(int i = 0 ; i * imageWidth <= getWidth() ; i ++){ for(int j = 0 ; j * imageHeight <= getHeight(); j++){ if(i + j > 0 ) g.copyArea(0,0,imageWidth,imageHeight, i * imageWidth,j * imageHeight); } } } private Image image; }

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