mirror of https://github.com/GNOME/gimp.git
125 lines
5.0 KiB
C
125 lines
5.0 KiB
C
/* xmp-model.h - treeview model for XMP metadata
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*
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* Copyright (C) 2004, Raphaël Quinet <raphael@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 3 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, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef XMP_MODEL_H
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#define XMP_MODEL_H
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G_BEGIN_DECLS
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#include <glib-object.h>
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#define GIMP_TYPE_XMP_MODEL (xmp_model_get_type ())
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#define XMP_MODEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_XMP_MODEL, XMPModel))
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#define XMP_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_XMP_MODEL, XMPModelClass))
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#define GIMP_IS_XMP_MODEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_XMP_MODEL))
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#define GIMP_IS_XMP_MODEL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_XMP_MODEL))
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#define GIMP_XMP_MODEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_XMP_MODEL, XMPModelClass))
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typedef struct _XMPModel XMPModel;
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typedef struct _XMPModelClass XMPModelClass;
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/* The main part of the XMPModel structure is the GtkTreeStore in
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* which all references to XMP properties are stored. In the tree,
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* the elements at the root level are the schemas (namespaces) and the
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* children of the schemas are the XMP properties.
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*
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* If the XMP file contains a schema that is not part of the XMP
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* specification or a known extension (e.g., IPTC Core), it will be
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* included in the custom_schemas list and the corresponding element
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* in the tree will get a reference to that list element instead of a
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* reference to one of the static schema definitions found in
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* xmp-schemas.c. Same for custom properties inside a known or custom
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* schema.
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*/
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struct _XMPModel
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{
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GtkTreeStore parent_instance;
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GSList *custom_schemas;
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GSList *custom_properties;
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XMPSchema *cached_schema;
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GtkTreeIter cached_schema_iter;
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};
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struct _XMPModelClass
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{
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GtkTreeStoreClass parent_class;
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void (* property_changed) (XMPModel *xmp_model,
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XMPSchema *schema,
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GtkTreeIter *iter);
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};
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/* columns used in the GtkTreeStore model holding the XMP metadata */
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typedef enum
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{
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COL_XMP_NAME = 0, /* G_TYPE_STRING - name */
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COL_XMP_VALUE, /* G_TYPE_STRING - value as string (for viewing) */
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COL_XMP_VALUE_RAW, /* G_TYPE_POINTER - value as array (from parser) */
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COL_XMP_TYPE_XREF, /* G_TYPE_POINTER - XMPProperty or XMPSchema */
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COL_XMP_WIDGET_XREF, /* G_TYPE_POINTER - GtkWidget cross-reference */
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COL_XMP_EDITABLE, /* G_TYPE_INT - editable? */
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COL_XMP_EDIT_ICON, /* GDK_TYPE_PIXBUF - edit icon */
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COL_XMP_VISIBLE, /* G_TYPE_BOOLEAN - visible? */
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COL_XMP_WEIGHT, /* G_TYPE_INT - font weight */
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COL_XMP_WEIGHT_SET, /* G_TYPE_BOOLEAN - font weight set? */
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XMP_MODEL_NUM_COLUMNS
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} XMPModelColumns;
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/* special value for the COL_XMP_EDITABLE column. not strictly boolean... */
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#define XMP_AUTO_UPDATE 2
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GType xmp_model_get_type (void) G_GNUC_CONST;
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XMPModel *xmp_model_new (void);
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gboolean xmp_model_is_empty (XMPModel *xmp_model);
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gboolean xmp_model_parse_buffer (XMPModel *xmp_model,
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const gchar *buffer,
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gssize buffer_length,
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gboolean skip_other_data,
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GError **error);
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gboolean xmp_model_parse_file (XMPModel *xmp_model,
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const gchar *filename,
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GError **error);
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GtkTreeModel *xmp_model_get_tree_model (XMPModel *xmp_model);
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const gchar *xmp_model_get_scalar_property (XMPModel *xmp_model,
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const gchar *schema_name,
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const gchar *property_name);
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gboolean xmp_model_set_scalar_property (XMPModel *xmp_model,
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const gchar *schema_name,
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const gchar *property_name,
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const gchar *property_value);
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/* Signals */
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void xmp_model_property_changed (XMPModel *xmp_model,
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XMPSchema *schema,
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GtkTreeIter *iter);
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G_END_DECLS
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#endif /* XMP_MODEL_H */
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