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c16f914b40
Add support for serialising a GIcon to a GVariant and deserialising the result back to a GIcon. This solves a number of problems suffered by the existing to_string() API, primarily these: - not forcing the icon to be a utf8 string means that we can efficiently encode a PNG (ie: just give the array of bytes) - there is no need to ensure that proper types are loaded before using the deserialisation interface. 'Foreign' icon types will probably emit a serialised format the deserialises to a GBytesIcon. We additionally clearly document what is required for being a consumer or implementation of #GIcon. Further patches will be required to GdkPixbuf and GVfsIcon to bring their implementations in line with the new rules (essentially: introduce implementations of the new serialize() API). https://bugzilla.gnome.org/show_bug.cgi?id=688820
135 lines
4.9 KiB
C
135 lines
4.9 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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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
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* Public 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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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __G_VFS_H__
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#define __G_VFS_H__
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#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
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#error "Only <gio/gio.h> can be included directly."
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#endif
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#include <gio/giotypes.h>
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G_BEGIN_DECLS
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#define G_TYPE_VFS (g_vfs_get_type ())
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#define G_VFS(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_VFS, GVfs))
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#define G_VFS_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_VFS, GVfsClass))
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#define G_VFS_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_VFS, GVfsClass))
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#define G_IS_VFS(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_VFS))
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#define G_IS_VFS_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_VFS))
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/**
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* G_VFS_EXTENSION_POINT_NAME:
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*
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* Extension point for #GVfs functionality.
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* See <link linkend="extending-gio">Extending GIO</link>.
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*/
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#define G_VFS_EXTENSION_POINT_NAME "gio-vfs"
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/**
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* GVfs:
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*
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* Virtual File System object.
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**/
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typedef struct _GVfsClass GVfsClass;
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struct _GVfs
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{
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GObject parent_instance;
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};
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struct _GVfsClass
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{
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GObjectClass parent_class;
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/* Virtual Table */
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gboolean (* is_active) (GVfs *vfs);
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GFile * (* get_file_for_path) (GVfs *vfs,
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const char *path);
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GFile * (* get_file_for_uri) (GVfs *vfs,
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const char *uri);
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const gchar * const * (* get_supported_uri_schemes) (GVfs *vfs);
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GFile * (* parse_name) (GVfs *vfs,
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const char *parse_name);
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/*< private >*/
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void (* local_file_add_info) (GVfs *vfs,
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const char *filename,
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guint64 device,
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GFileAttributeMatcher *attribute_matcher,
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GFileInfo *info,
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GCancellable *cancellable,
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gpointer *extra_data,
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GDestroyNotify *free_extra_data);
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void (* add_writable_namespaces) (GVfs *vfs,
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GFileAttributeInfoList *list);
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gboolean (* local_file_set_attributes) (GVfs *vfs,
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const char *filename,
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GFileInfo *info,
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GFileQueryInfoFlags flags,
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GCancellable *cancellable,
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GError **error);
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void (* local_file_removed) (GVfs *vfs,
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const char *filename);
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void (* local_file_moved) (GVfs *vfs,
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const char *source,
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const char *dest);
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GIcon * (* deserialize_icon) (GVfs *vfs,
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GVariant *value);
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/* Padding for future expansion */
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void (*_g_reserved1) (void);
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void (*_g_reserved2) (void);
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void (*_g_reserved3) (void);
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void (*_g_reserved4) (void);
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void (*_g_reserved5) (void);
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void (*_g_reserved6) (void);
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};
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GLIB_AVAILABLE_IN_ALL
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GType g_vfs_get_type (void) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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gboolean g_vfs_is_active (GVfs *vfs);
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GLIB_AVAILABLE_IN_ALL
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GFile * g_vfs_get_file_for_path (GVfs *vfs,
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const char *path);
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GLIB_AVAILABLE_IN_ALL
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GFile * g_vfs_get_file_for_uri (GVfs *vfs,
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const char *uri);
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GLIB_AVAILABLE_IN_ALL
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const gchar* const * g_vfs_get_supported_uri_schemes (GVfs *vfs);
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GLIB_AVAILABLE_IN_ALL
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GFile * g_vfs_parse_name (GVfs *vfs,
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const char *parse_name);
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GLIB_AVAILABLE_IN_ALL
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GVfs * g_vfs_get_default (void);
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GLIB_AVAILABLE_IN_ALL
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GVfs * g_vfs_get_local (void);
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G_END_DECLS
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#endif /* __G_VFS_H__ */
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