1 files changed, 94 insertions, 0 deletions
diff --git a/src/jpeg-utils.h b/src/jpeg-utils.h
new file mode 100644
index 0000000..9b8919f
--- /dev/null
+++ b/src/jpeg-utils.h
@@ -0,0 +1,94 @@
+/*   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);
+
+/*
+ *   modify_exif: - strip thumbnail stored in EXIF table
+ *                - add copyright to Exif::Image::Copyright and Iptc::Application2::Copyright
+ */
+void modify_exif (const char *filename, gboolean strip_thumbnail, const char *add_copyright);
+
+
+#ifdef __cplusplus
+  }
+#endif