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


public  class PickNTrackOld extends Frame {

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

	static int x = 0;  //these are the x and y position of the dot you are drawing
	static int y = 0;

	static int redGoal = 210;  //these describe the color you are chasing
	static int greenGoal =  20;  //255, 255, 255 would be white
	static int blueGoal = 20;

	static PixelSource ps;
	static ImageWranglerOld iw;
	static  PickNTrackOld myWindow;

	static Image myImage;

    static boolean scanning = true;

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

	 public static void main(String args[])   //this is like exit frame
     {
        myWindow = new PickNTrackOld();
       	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 clicking the mouse in the window, give it a method to call (MouseClicked)
		myWindow.addMouseListener(new java.awt.event.MouseAdapter() {
				public void mouseClicked(java.awt.event.MouseEvent e) {
					myWindow.MouseClicked(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 worldRecord = 60000; //some huge number
	   	ps.grabFrame();  //grab a frame

		for (int row = 0; row < kHeight; row++)  //REPEAT FOR EACH ROW OF PIXELS
			{
					for (int column = 0; column < kWidth; column++)  //REPEAT FOR EACH PIXEL IN THE ROW
					{
						rgb = ps.getPixel(column,row);
						ps.setPixel(column,row,255);  //set the alpha to opaque
						int differenceInColor = Math.abs(rgb[0] - redGoal) + Math.abs(rgb[2] - blueGoal) + Math.abs(rgb[1  ] - greenGoal);
						if (differenceInColor < worldRecord) {
							x = column;
							y = row;
							worldRecord = differenceInColor ;
						}

						//System.out.println ("red" + red  + " blue" + blue + " green" + green);
					//	}
					}//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
			g.setColor(new Color(0, 0, 0));//black
			g.fillOval( x,y,10,10);//the dot for tracking
		}
       }

 	public boolean MouseClicked(java.awt.event.MouseEvent evt){ //this repicks the color you are chasing

    		int[] rgb;
    		//find a color to track
    		int x = evt.getX();
    		int y = evt.getY();

   			rgb = ps.getPixel(x,y);
    		redGoal = rgb[0];
			greenGoal =rgb[1];
			blueGoal = rgb[2];

       		System.out.println ("clicked x" + x + " y" + y + " R" + redGoal + " G" + greenGoal + " B" + blueGoal);

    	return(true);
    }

	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();
		}
		return(true);
	}

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


	}
}