metadata.h

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/*
    This file is part of darktable,
    Copyright (C) 2010-2020 darktable developers.
 
    darktable 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 3 of the License, or
    (at your option) any later version.
 
    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include "common/darktable.h"
#include "gui/gtk.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum dt_metadata_t
{
  // do change the order. Must match with dt_metadata_def[] in metadata.c.
  // just add new metadata before DT_METADATA_NUMBER when needed
  // and this must also be synchronized with the collect.c module (legacy_presets).
  DT_METADATA_XMP_DC_CREATOR,
  DT_METADATA_XMP_DC_PUBLISHER,
  DT_METADATA_XMP_DC_TITLE,
  DT_METADATA_XMP_DC_DESCRIPTION,
  DT_METADATA_XMP_DC_RIGHTS,
  DT_METADATA_XMP_ACDSEE_NOTES,
  DT_METADATA_XMP_VERSION_NAME,
  DT_METADATA_XMP_IMAGE_ID,
  DT_METADATA_NUMBER
}
dt_metadata_t;
 
typedef enum dt_metadata_type_t
{
  DT_METADATA_TYPE_USER,     // metadata for users
  DT_METADATA_TYPE_OPTIONAL, // metadata hidden by default
  DT_METADATA_TYPE_INTERNAL  // metadata for dt internal usage - the user cannot see it
}
dt_metadata_type_t;
 
typedef enum dt_metadata_signal_t
{
  DT_METADATA_SIGNAL_SHOWN,       // metadata set as shown
  DT_METADATA_SIGNAL_HIDDEN,      // metadata set as hidden
  DT_METADATA_SIGNAL_NEW_VALUE    // metadata value changed
}
dt_metadata_signal_t;
 
typedef enum dt_metadata_flag_t
{
  DT_METADATA_FLAG_HIDDEN = 1 << 0,     // metadata set as shown
  DT_METADATA_FLAG_PRIVATE = 1 << 1,    // metadata set as hidden
  DT_METADATA_FLAG_IMPORTED = 1 << 2    // metadata value changed
}
dt_metadata_flag_t;
 
unsigned int dt_metadata_get_nb_user_metadata();
 
const char *dt_metadata_get_name_by_display_order(const uint32_t order);
 
dt_metadata_t dt_metadata_get_keyid_by_display_order(const uint32_t order);
 
dt_metadata_t dt_metadata_get_keyid_by_name(const char* name);
 
int dt_metadata_get_type_by_display_order(const uint32_t order);
 
const char *dt_metadata_get_name(const uint32_t keyid);
 
dt_metadata_t dt_metadata_get_keyid(const char* key);
 
const char *dt_metadata_get_key(const uint32_t keyid);
 
const char *dt_metadata_get_subkey(const uint32_t keyid);
 
const char *dt_metadata_get_key_by_subkey(const char *subkey);
 
int dt_metadata_get_type(const uint32_t keyid);
 
void dt_metadata_init();
 
void dt_metadata_set(int id, const char *key, const char *value, const gboolean undo_on); // duplicate.c, lua/image.c
 
void dt_metadata_set_import(int id, const char *key, const char *value); // exif.cc, ligthroom.c
 
void dt_metadata_set_list(const GList *imgs, GList *key_value, const gboolean undo_on); // libs/metadata.c
 
void dt_metadata_set_list_id(const GList *img, const GList *metadata, const gboolean clear_on,
                             const gboolean undo_on);
GList *dt_metadata_get(int id, const char *key, uint32_t *count); // exif.cc, variables.c, facebook.c, flicker.c, gallery.c, googlephoto.c, latex.c, piwigo.c, watermark.c, metadata_view.c, libs/metadata.c, print_settings.c, lua/image.c
 
GList *dt_metadata_get_list_id(int id); // libs/image.c
 
void dt_metadata_clear(const GList *imgs, const gboolean undo_on); // libs/metadata.c
 
int dt_metadata_already_imported(const char *filename, const char *datetime);
 
#ifdef __cplusplus
}
#endif
 
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