63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* GTK - The GIMP Toolkit
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* gtkpapersize.c: Paper Size
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* Copyright (C) 2006, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gtkprintutils.h"
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gdouble
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_gtk_print_convert_to_mm (gdouble len,
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GtkUnit unit)
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{
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switch (unit)
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{
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case GTK_UNIT_MM:
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return len;
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case GTK_UNIT_INCH:
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return len * MM_PER_INCH;
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default:
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case GTK_UNIT_PIXEL:
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g_warning ("Unsupported unit");
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/* Fall through */
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case GTK_UNIT_POINTS:
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return len * (MM_PER_INCH / POINTS_PER_INCH);
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break;
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}
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}
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gdouble
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_gtk_print_convert_from_mm (gdouble len,
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GtkUnit unit)
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{
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switch (unit)
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{
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case GTK_UNIT_MM:
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return len;
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case GTK_UNIT_INCH:
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return len / MM_PER_INCH;
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default:
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case GTK_UNIT_PIXEL:
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g_warning ("Unsupported unit");
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/* Fall through */
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case GTK_UNIT_POINTS:
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return len / (MM_PER_INCH / POINTS_PER_INCH);
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break;
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}
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}
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