/* 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" double _gtk_print_convert_to_mm (double len, GtkUnit unit) { switch (unit) { case GTK_UNIT_MM: return len; case GTK_UNIT_INCH: return len * MM_PER_INCH; case GTK_UNIT_NONE: default: g_warning ("Unsupported unit"); G_GNUC_FALLTHROUGH; case GTK_UNIT_POINTS: return len * (MM_PER_INCH / POINTS_PER_INCH); break; } } double _gtk_print_convert_from_mm (double len, GtkUnit unit) { switch (unit) { case GTK_UNIT_MM: return len; case GTK_UNIT_INCH: return len / MM_PER_INCH; case GTK_UNIT_NONE: default: g_warning ("Unsupported unit"); G_GNUC_FALLTHROUGH; case GTK_UNIT_POINTS: return len / (MM_PER_INCH / POINTS_PER_INCH); break; } }