private void drawLThumb(float screenCoord,Thumb obj,Canvas canvas){
  Log.w("lftBoolean",isLeftThumb.toString());
  canvas.drawBitmap(isLeftThumb ? Left_thumbPressedImage : Left_thumbImage_nrml,screenCoord - thumbHalfWidth,(float)((0.5f * getHeight()) - thumbHalfHeight),paint);
  isLeftThumb=false;
}

private void drawLThumb ( float screenCoord , Thumb obj , Canvas canvas ) { Log . w ( "lftBoolean" , isLeftThumb . toString ( ) ) ; canvas . drawBitmap ( isLeftThumb ? Left_thumbPressedImage : Left_thumbImage_nrml , screenCoord - thumbHalfWidth , ( float ) ( ( 0.5f * getHeight ( ) ) - thumbHalfHeight ) , paint ) ; isLeftThumb = false ; }
draws the " normal " resp . " pressed " thumb image on specified x - coordinate .
