private void setSeekBarProgress() {
   boolean orientable = false;
   if (mItemType == DrawingActivity.SYMBOL_POINT && mPointAdapter != null) {
     int index = mPointAdapter.getSelectedPos();
     ItemSymbol item = mPointAdapter.get(index);
     if (item != null) {
       SymbolInterface symbol = item.mSymbol;
       if (symbol != null && symbol.isOrientable()) {
         int progress = (180 + symbol.getAngle()) % 360;
         mSeekBar.setProgress(progress);
         // Log.v("DistoX", "set progress " + progress );
         orientable = true;
       }
     }
   }
   mSeekBar.setEnabled(orientable);
 }