package exo.com.FtpCam;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import android.app.Activity;
import android.content.ContentValues;
import android.content.pm.ActivityInfo;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PictureCallback;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore.Images.Media;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.Toast;
public class AndroidCamera extends Activity implements SurfaceHolder.Callback{
Camera camera;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
boolean previewing = false;;
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main); //on utilise le xml main
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
    
      getWindow().setFormat(PixelFormat.UNKNOWN);
      surfaceView = (SurfaceView)findViewById(R.id.camerapreview); //la zone dans le xml 
      surfaceHolder = surfaceView.getHolder();
      surfaceHolder.addCallback(this);
      surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
  }
// ici les differentes callback :
  
  AutoFocusCallback myAutoFocusCallback = new AutoFocusCallback(){
      @Override
      public void onAutoFocus(boolean arg0, Camera arg1) {
       //take photo larque la photo est OK
       camera.takePicture(null, null, myPictureCallback_JPG);
       //camera.takePicture(null, null, null);
      }};
      
  PictureCallback myPictureCallback_JPG = new PictureCallback(){
  
    public void onPictureTaken(byte[] arg0, Camera arg1) {
      // TODO Auto-generated method stub
      Uri uriTarget = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, new ContentValues());
      OutputStream imageFileOS;
      try {
       imageFileOS = getContentResolver().openOutputStream(uriTarget);
       imageFileOS.write(arg0);
       imageFileOS.flush();
       imageFileOS.close();
       /*Toast.makeText(AndroidCamera.this,
         "Image saved: " + uriTarget.toString(),
         Toast.LENGTH_LONG).show();*/
       
      } catch (FileNotFoundException e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
      } catch (IOException e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
      }
      
    }};
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
 int height) {
// TODO Auto-generated method stub
if(previewing){
 camera.stopPreview();
 previewing = false;
}
if (camera != null){
 try {
  camera.setPreviewDisplay(surfaceHolder);
  camera.startPreview();
  previewing = true;
  //Autofocus, la photo est prise dans la callback, qui indique que l image est nette 
  camera.autoFocus(myAutoFocusCallback);
 } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
camera = Camera.open();
}
// Mise en pause de l'application
@Override
public void onPause() {
    super.onPause();
    if (camera != null) {
        camera.release();
        camera = null;
    }
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
//super.onDestroy();
Toast.makeText(this, "MyAlarmService.onDestroy()", Toast.LENGTH_LONG).show();
}
}