import java.awt.*;
import java.util.*;
import java.awt.event.*;
import java.awt.image.*;


public  class SeeVideo extends Frame {

	static int kWidth ;  //The overall size of your video
	static int kHeight ;

	static long elapsedTime;
	static long now;

	static PixelSource ps;
	static ImageWrangler iw;
	static SeeVideo myWindow;
	static Image myImage;

    static boolean scanning = true;

	SeeVideo() {  //this is like startmovie
		kWidth = 640;
		kHeight =480;
	}

	 public static void main(String args[])   //this is like exit frame
     {
        myWindow = new SeeVideo();
       	myWindow.setSize(kWidth,kHeight);
		myWindow.show();
		myWindow.toFront();
		myWindow.setLayout (null);
		//This is the object that give you the video pixels, the last parameter is for dialog box
		ps = new PixelSource(kWidth,kHeight);
		ps.videoSettings();//pop up the settings window
		iw = new ImageWrangler(ps.vidWidth,kHeight,ps.getMasks());

		//add a listener for shutting the window, give it a method to call (thisWindowClosing)
		myWindow.addWindowListener(new java.awt.event.WindowAdapter() {
				public void windowClosing(java.awt.event.WindowEvent e) {
					myWindow.thisWindowClosing(e);
				}
			});

		myWindow.addKeyListener(new java.awt.event.KeyAdapter() {
				public void keyPressed(java.awt.event.KeyEvent e) {
					myWindow.KeyPressed(e);
				}
			});
		/////////In every frame (like exit frame)///////
		while (scanning)  //you may want to farm this out to a thread
			{
			 LookAtAFrame();   //we look through all the pixels
			 myWindow.repaint();    // we paint the winner
			}
	}





	static void LookAtAFrame()   //this is where the action is, where we go pixel by pixel through the video
     {
		//ps.idleIt(100);
	   	ps.grabFrame();  //grab a frame
		try {Thread.sleep(1);}   catch(InterruptedException e) {}
		myImage = iw.imageFromArray(ps.getPixelArray());  //get an image from an array
		elapsedTime = System.currentTimeMillis()-now;
			now = System.currentTimeMillis();
	}	 // end of lookat frame


	public void update(Graphics g){
		paint(g);  //remove flicker
	}

	public void paint(Graphics g) {    //this is where we paint
	if (myImage != null){
			g.drawImage(myImage,0,0,this);//the background video
		}
       }


	public boolean KeyPressed(java.awt.event.KeyEvent e){ //brings up the dialog box
		//System.out.println (  "whichkey" + e.getKeyText(e.getKeyCode()));
		String whichKey =e.getKeyText(e.getKeyCode());
		if (whichKey.equals("S")) {
			ps.videoSettings();
		}else if (whichKey.equals("T")) {
			System.out.println ("Time: " + elapsedTime + " ms per frame including painting");

		}
		return(true);
	}

    void thisWindowClosing(java.awt.event.WindowEvent e) {
   		scanning = false;
   		System.out.println ("quit");
		dispose();
		ps.killSession();
		System.exit(5);

	}
}