package com.sokar.cpreviewtest;


import java.io.IOException;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.hardware.Camera;
import android.util.AttributeSet;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback, Camera.PreviewCallback {

    private SurfaceHolder mHolder;

    private Camera mCamera;
    private boolean isPreviewRunning = false;
    private byte [] rgbbuffer = new byte[256 * 256];
    private int [] rgbints = new int[256 * 256];

    protected final Paint rectanglePaint = new Paint();

    public MySurfaceView(Context context, AttributeSet attrs) {
    super(context, attrs);
        rectanglePaint.setARGB(100, 200, 0, 0);
        rectanglePaint.setStyle(Paint.Style.FILL);
        rectanglePaint.setStrokeWidth(2);

        mHolder = getHolder();
        mHolder.addCallback(this);
        mHolder.setType(SurfaceHolder.SURFACE_TYPE_NORMAL);

    }

//    @Override
//    protected void onDraw(Canvas canvas) {
//        canvas.drawRect(new Rect((int) Math.random() * 100,
//            (int) Math.random() * 100, 200, 200), rectanglePaint);
//        Log.w(this.getClass().getName(), "On Draw Called");
//    }

    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
    }

    public void surfaceCreated(SurfaceHolder holder) {
        synchronized (this) {
         //   this.setWillNotDraw(false); // This allows us to make our own draw
                                    // calls to this canvas

        	mCamera = Camera.open();

            Camera.Parameters p = mCamera.getParameters();
            p.setPreviewSize(240, 160);
            mCamera.setParameters(p);


            try { mCamera.setPreviewDisplay(holder); } catch (IOException e)
              { Log.e("Camera", "mCamera.setPreviewDisplay(holder);"); }
           // mCamera.setPreviewCallback(this);
            
            Log.w("Created", "SurfaceView is created and running?");
            mCamera.startPreview();
           
            

        }
    }

    public void surfaceDestroyed(SurfaceHolder holder) {
        synchronized (this) {
            try {
                if (mCamera != null) {
                    mCamera.stopPreview();
                    isPreviewRunning = false;
                    mCamera.release();
                }
            } catch (Exception e) {
                Log.e("Camera", e.getMessage());
            }
        }
    }

    public void onPreviewFrame(byte[] data, Camera camera) {
        Log.d("Jim", "Got a camera frame");

        Canvas c = null;

        if(mHolder == null){
            return;
        }

        try {
            synchronized (mHolder) {
                c = mHolder.lockCanvas(null);

                // Do your drawing here
                // So this data value you're getting back is formatted in YUV format and you can't do much
                // with it until you convert it to rgb
                int bwCounter=0;
                int yuvsCounter=0;
                for (int y=0;y<160;y++) {
                    System.arraycopy(data, yuvsCounter, rgbbuffer, bwCounter, 240);
                    yuvsCounter=yuvsCounter+240;
                    bwCounter=bwCounter+256;
                }

                for(int i = 0; i < rgbints.length; i++){
                    rgbints[i] = (int)rgbbuffer[i];
                }
                Log.w("Jim", "We have data, and drawing I think.");
                //decodeYUV(rgbbuffer, data, 100, 100);
                c.drawBitmap(rgbints, 0, 256, 0, 0, 256, 256, false, new Paint());
                //invalidate();
                Log.d("SOMETHING", "Got Bitmap");

            }
        } finally {
            // do this in a finally so that if an exception is thrown
            // during the above, we don't leave the Surface in an
            // inconsistent state
            if (c != null) {
                mHolder.unlockCanvasAndPost(c);
            }
        }
    }
}
