text: /* GTK - The GIMP Toolkit
   * gtkpapersize.c: Paper Size
   * Copyright (C) 2006, Red Hat, Inc.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library. If not, see <http://www.gnu.org/licenses/>.
   */
  
  #include "config.h"
  #include "gtkprintutils.h"
  
  gdouble
  _gtk_print_convert_to_mm (gdouble len, 
  			  GtkUnit unit)
  {
    switch (unit)
      {
      case GTK_UNIT_MM:
        return len;
      case GTK_UNIT_INCH:
        return len * MM_PER_INCH;
      default:
        g_warning ("Unsupported unit");
        /* Fall through */
      case GTK_UNIT_POINTS:
        return len * (MM_PER_INCH / POINTS_PER_INCH);
        break;
      }
  }
  
  gdouble
  _gtk_print_convert_from_mm (gdouble len, 
  			    GtkUnit unit)
  {
    switch (unit)
      {
      case GTK_UNIT_MM:
        return len;
      case GTK_UNIT_INCH:
        return len / MM_PER_INCH;
      default:
        g_warning ("Unsupported unit");
        /* Fall through */
      case GTK_UNIT_POINTS:
        return len / (MM_PER_INCH / POINTS_PER_INCH);
        break;
      }
  }
  