colorchangemotion.java

包含6个源码。主要是使用APPLET对图形图像进行处理。 有旋转

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

class myRGBFilter extends RGBImageFilter
{
	private int transValue;
	private int bgRed;
	private int bgGreen;
	private int bgBlue;
	
	public myRGBFilter(int tV,int backgroundRGB)
	{
		canFilterIndexColorModel = true;
		transValue = tV;
		bgRed = (backgroundRGB >> 16) & 255;
		bgGreen = (backgroundRGB >> 8) & 255;
		bgBlue = (backgroundRGB & 255);
	}
	
	public void setTransValue(int newValue)
	{
		transValue = newValue;
	}
	
	public int getTransValue()
	{
		return transValue;
	}
	
	public int filterRGB(int x,int y,int rgb)
	{
		int red = (bgRed * (255 - transValue) + ((rgb >> 16) & 255) * transValue) / 255;
		int green = (bgGreen * (255 - transValue) + ((rgb >> 8) & 255) * transValue) / 255;
		int blue = (bgBlue * (255 - transValue) + (rgb & 255) * transValue) / 255;
		return (rgb & 0xff000000) + (red << 16) + (green << 8) + blue;
	}
}
public class colorChangeMotion extends Applet implements Runnable
{
	protected Image origImage;
	protected Image cycledImage;
	protected myRGBFilter colorFilter;
	Thread animatorThread;
	static final int delay = 10;
	int trans,direction;
	
	public void init()
	{
		trans = 255;
		direction = -1;
		origImage = getImage(getDocumentBase(),getParameter("image"));
		MediaTracker mt = new MediaTracker(this);
		mt.addImage(origImage,0);
		try
		{
			mt.waitForID(0);
		}
		catch(Exception e)
		{
		}
		colorFilter = new myRGBFilter(trans,Color.GRAY.getRGB());
		cycledImage = createImage(new FilteredImageSource(origImage.getSource(),colorFilter));
		
	}
	
	public void start()
	{
		if(animatorThread == null)
			animatorThread = new Thread(this);
			animatorThread.start();
	}
	
	public void stop()
	{
		animatorThread = null;
	}
	
	public void run()
	{
		Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
		long startTime = System.currentTimeMillis();
		while(Thread.currentThread() == animatorThread)
		{
			trans += direction;
			if(trans >= 255 || trans <= 0)
				direction = -direction;
			colorFilter.setTransValue(trans);
			cycledImage.flush();
			MediaTracker myTracker = new MediaTracker(this);
			myTracker.addImage(cycledImage,0);
			try
			{
				myTracker.waitForID(0);
			}
			catch(Exception e)
			{
			}
			repaint();
			try
			{
				startTime += delay;
				Thread.sleep(Math.max(0,startTime - System.currentTimeMillis()));
			}
			catch(InterruptedException ie)
			{
				break;
			}
		}
	}
	
	public void paint(Graphics g)
	{
		g.drawImage(cycledImage,0,0,this);
	}
	
	public void update(Graphics g)
	{
		paint(g);
	}
}