mirror of https://github.com/GNOME/gimp.git
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/* exif-decode.c - decodes exif data and converts it to XMP
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*
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* Copyright (C) 2004-2005, Róman Joost <romanofski@gimp.org>
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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 <string.h>
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#include <gtk/gtk.h>
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#include <glib.h>
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#include <libgimp/gimp.h>
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#include <libexif/exif-data.h>
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#include "xmp-schemas.h"
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#include "xmp-model.h"
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#include "exif-decode.h"
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/* local function prototypes */
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static void exif_foreach_content_cb (ExifContent *content,
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XMPModel *xmp_model);
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static void exif_foreach_entry_cb (ExifEntry *entry,
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XMPModel *xmp_model);
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/* public functions */
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/**
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* xmp_merge_from_exifbuffer:
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* @xmp_model: pointer to the #XMPModel in which the results will be stored
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* @image_ID: id of the image where the exif data parasite is attached to
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* @error: return location for a #GErrror
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*
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* Load the Exif data, which is attached to the image as a parasite. The
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* parsed Exif data is merged into the XMP model.
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*
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* Return value: %TRUE on success, %FALSE if an error occured during
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* reading/writing
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*
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**/
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gboolean
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xmp_merge_from_exifbuffer (XMPModel *xmp_model,
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gint32 image_ID,
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GError **error)
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{
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ExifData *exif_data;
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GimpParasite *parasite = gimp_image_get_parasite (image_ID, "exif-data");
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if (!parasite)
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return FALSE;
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exif_data = exif_data_new_from_data (gimp_parasite_data (parasite),
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gimp_parasite_data_size (parasite));
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if (exif_data) {
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exif_data_foreach_content (exif_data,
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(void *) exif_foreach_content_cb,
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xmp_model);
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} else {
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return FALSE;
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}
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return TRUE;
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}
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/* private functions */
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static void
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exif_foreach_content_cb (ExifContent *content,
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XMPModel *xmp_model)
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{
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exif_content_foreach_entry (content,
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(void *) exif_foreach_entry_cb,
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xmp_model);
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}
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static void
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exif_foreach_entry_cb (ExifEntry *entry,
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XMPModel *xmp_model)
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{
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char value[1024];
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xmp_model_set_scalar_property (xmp_model,
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XMP_SCHEMA_EXIF,
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exif_tag_get_name (entry->tag),
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exif_entry_get_value (entry, value, sizeof (value)));
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}
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