imagex.java

用java实现的对位图文件读取的源程序代码。

import java.awt.*;
import java.awt.image.*;

public class ImageX {
	
	Image image;
	int[][] data;
	Panel panel;
	public ImageX(String fileName, Panel aPanel)  throws Exception {
		
		panel = aPanel;
		
		image = Toolkit.getDefaultToolkit().getImage(fileName);
		
		MediaTracker tracker=new MediaTracker(panel);

        tracker.addImage(image,0) ;
        try {
        	tracker.waitForID(0) ;
        }catch(InterruptedException e)  {e.printStackTrace() ;}    		

		
		fillData();
	}
	
	public void fillData() throws Exception {
		
		int width = image.getWidth(panel);
		int height = image.getHeight(panel);
		
		int[] pixels = new int[width * height];
		PixelGrabber pg = new PixelGrabber(image,0,0,width,height,pixels,0,width) ;
        pg.grabPixels() ;
        
        data = new int[height][width];
        
        for (int i = 0; i<data.length; i++) {
        	for (int j = 0; j<data[i].length; j++) {
        		data[i][j] = pixels[i*data[i].length + j];
		    }
	    }
	}
	
	public int[][] getData() {
		return data;
	}
	 
}