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diff --git a/src/thumbnail.h b/src/thumbnail.h
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+/* thumbnail.h
+
+Copyright (C) 1999-2003 Tom Gilbert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies of the Software and its documentation and acknowledgment shall be
+given in the documentation and software packages that this Software was
+used.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#ifndef THIMBNAIL_H
+#define THIMBNAIL_H
+
+
+#include "feh.h"
+#include "filelist.h"
+#include "winwidget.h"
+
+#define FEH_THUMB(l) ((feh_thumbnail *) l)
+
+typedef struct thumbnail
+{
+   int x;
+   int y;
+   int w;
+   int h;
+   feh_file *file;
+   unsigned char exists;
+   struct feh_thumbnail *next;
+}
+feh_thumbnail;
+
+typedef struct thumbmode_data
+{
+	/* FIXME: text_area_h not really needed, remove? */
+
+	Imlib_Image im_main; /* base image which all thumbnails are rendered on */
+	Imlib_Image im_bg; /* background for the thumbnails */
+
+	Imlib_Font font_main; /* font used for file info */
+	Imlib_Font font_title; /* font used for title */
+
+	int w, h, bg_w, bg_h; /* dimensions of the window and bg image */
+
+	int thumb_tot_h; /* total space needed for a thumbnail including description */
+	int text_area_w, text_area_h; /* space needed for thumbnail description */
+
+	int max_column_w; /* FIXME: description */
+	int vertical; /* FIXME: vertical in what way? */
+	int cache_thumbnails; /* use cached thumbnails from ~/.thumbnails/normal */
+}
+thumbmode_data;
+
+feh_thumbnail *feh_thumbnail_new(feh_file * fil, int x, int y, int w, int h);
+feh_file *feh_thumbnail_get_file_from_coords(int x, int y);
+feh_thumbnail *feh_thumbnail_get_thumbnail_from_coords(int x, int y);
+feh_thumbnail *feh_thumbnail_get_from_file(feh_file * file);
+void feh_thumbnail_mark_removed(feh_file * file, int deleted);
+
+void feh_thumbnail_calculate_geometry(void);
+
+int feh_thumbnail_get_thumbnail(Imlib_Image *image, feh_file *file);
+int feh_thumbnail_generate(Imlib_Image *image, feh_file *file, char *thumb_file, char *uri);
+int feh_thumbnail_get_generated(Imlib_Image *image, feh_file *file, char *thumb_file, char *uri);
+char *feh_thumbnail_get_name(char *uri);
+char *feh_thumbnail_get_name_uri(char *name);
+char *feh_thumbnail_get_name_md5(char *uri);
+
+int feh_thumbnail_setup_thumbnail_dir(void);
+
+#endif