/*   Cataract - Static web photo gallery generator
 *   Copyright (C) 2008 Tomas Bzatek <tbzatek@users.sourceforge.net>
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation; either version 2
 *   of the License, or any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifdef __cplusplus
  extern "C" {
#endif

#include <glib.h>


/*  TODO: we want to have numerical values here at some point in the future  */
typedef struct {
  char *datetime;
  char *camera_model;
  char *iso;
  char *focal_length;
  char *focal_length_35mm;
  char *aperture;
  char *exposure;
  char *flash;

  char *exif_software;
  char *exif_imgdesc;
  char *exif_artist;
  char *exif_copyright;
  char *exif_usercomment;

  char *iptc_objectname;
  char *iptc_copyright;
  char *iptc_credit;
  char *iptc_caption;
  char *iptc_author;

  char *jpeg_comment;
} TExifData;


/*
 *   get_exif: retrieve EXIF info from a JPEG image
 */
int get_exif (const char *filename, TExifData **exif_data);

/*
 *   free_exif_struct: free allocated structure
 */
void free_exif_data (TExifData *data);


/*
 *   resize_image: resize image pointed by src and save result to dst
 *                 - setting thumbnail flag will remove all profiles and optimize for size
 */
gboolean resize_image (const char *src, const char *dst,
		               int size_x, int size_y,
		               int quality,
		               gboolean thumbnail);

/*
 *   get_image_sizes: retrieve image dimensions
 */
void get_image_sizes (const char *img,
                      unsigned long *width, unsigned long *height);


/*
 *   calculate_sizes: calculate maximal image sizes within specified limits keeping aspect ratio
 */
void calculate_sizes (const unsigned long max_width, const unsigned long max_height,
		              unsigned long *width, unsigned long *height);

/*
 *   strip_thumbnail: strip thumbnail stored in EXIF table
 */
void strip_thumbnail (const char *filename);



#ifdef __cplusplus
  }
#endif