drawing = true;
   public void clearScreen() {      for (int x = 0; x < lenScreen; x++) {         screen[x].setCharAndAttr(' ',initAttr,false);         screen[x].setUseGUI(ScreenChar.NO_GUI);      }      dirty.setBounds(tArea.getBounds());//      dirty.setBounds(fmWidth * numCols,fmHeight * numRows,0,0);   }