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


public  class EdgeManual extends Frame {

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


	static PixelSource ps;
	static ImageWranglerOld iw;
	static  EdgeManual  myWindow;


	static int Threshold = 20;

	static Image myImage;

    static boolean scanning = true;

	EdgeManual() {  //this is like startmovie
		kWidth =320;
		kHeight =240;
	}

	 public static void main(String args[])   //this is like exit frame
     {
        myWindow = new EdgeManual();
       	myWindow.resize(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 ImageWranglerOld(ps.getPixelArray(),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);
				}
			});


		//add a listener for pressing a key , give it a method to call (KeyPressed)
		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
     {

  		int[] rgb;
  		int[] prgb;

	   	ps.grabFrame();  //grab a frame

		for (int row = 0; row < kHeight; row++)  //REPEAT FOR EACH ROW OF PIXELS
			{
					for (int column =1; column < kWidth; column++)  //REPEAT FOR EACH PIXEL IN THE ROW
					{
						rgb = ps.getPixel(column,row);
						///////EDGE
						prgb =  ps.getPixel(column-1,row);
						if ((Math.abs(prgb[0]-rgb[0])> 30)||(Math.abs(prgb[1]-rgb[1])> 30) || (Math.abs(prgb[2]-rgb[2])>30))
							{
								ps.setPixel( column-1, row,255,0,0,255);
							}
					}//END FOR EACH PIXEL IN A ROW
			}//END FOR EACH ROW OF PIXELS

			try {Thread.sleep(33);}   catch(InterruptedException e) {}
			myImage = iw.imageFromArray();
	}	 // end of lookat frame

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

	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){ //pop up dialog
		//System.out.println (  "whichkey" + e.getKeyText(e.getKeyCode()));
		String whichKey =e.getKeyText(e.getKeyCode());
		if (whichKey.equals("S")) {
			ps.videoSettings();
		}else if (whichKey.equals("B")) {
			ps.grabBackground();
		}
		return(true);
	}

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


	}
}