gwenview/lib/orientation.h

   1 // vim: set tabstop=4 shiftwidth=4 noexpandtab
   2 /*
   3 Gwenview: an image viewer
   4 Copyright 2007 Aurélien Gâteau <aurelien.gateau@free.fr>
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19
  20 */
  21 #ifndef ORIENTATION_H
  22 #define ORIENTATION_H
  23
  24
  25 namespace Gwenview {
  26
  27 /* Explanation extracted from http://sylvana.net/jpegcrop/exif_orientation.html
  28
  29    For convenience, here is what the letter F would look like if it were tagged
  30 correctly and displayed by a program that ignores the orientation tag (thus
  31 showing the stored image):
  32
  33   1        2       3      4         5            6           7          8
  34
  35 888888  888888      88  88      8888888888  88                  88  8888888888
  36 88          88      88  88      88  88      88  88          88  88      88  88
  37 8888      8888    8888  8888    88          8888888888  8888888888          88
  38 88          88      88  88
  39 88          88  888888  888888
  40
  41 */
  42
  43 enum Orientation {
  44         NOT_AVAILABLE=0,
  45         NORMAL=1,
  46         HFLIP=2,
  47         ROT_180=3,
  48         VFLIP=4,
  49         TRANSPOSE=5,
  50         ROT_90=6,
  51         TRANSVERSE=7,
  52         ROT_270=8
  53 };
  54
  55 }
  56
  57
  58 #endif