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merge of 'e91f57b507c8c0f946f9c4646b4851b3345df1c6'
release-2.2.1
2007-10-01, Luke Schierer
0ef161c44415
merge of 'e91f57b507c8c0f946f9c4646b4851b3345df1c6'
and '82e9073951f69854ef77a01dcbb02a5aae6b5d88'
/**
* @file imgstore.h IM Image Store API
* @ingroup core
*/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* 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
* (at your option) 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 02111-1301 USA
*
*/
#include
<glib.h>
#include
"internal.h"
#include
"dbus-maybe.h"
#include
"debug.h"
#include
"imgstore.h"
#include
"util.h"
static
GHashTable
*
imgstore
;
static
int
nextid
=
0
;
/**
* Stored image
*
* NOTE: purple_imgstore_add() creates these without zeroing the memory, so
* NOTE: make sure to update that function when adding members.
*/
struct
_PurpleStoredImage
{
int
id
;
guint8
refcount
;
size_t
size
;
/**< The image data's size. */
char
*
filename
;
/**< The filename (for the UI) */
gpointer
data
;
/**< The image data. */
};
PurpleStoredImage
*
purple_imgstore_add
(
gpointer
data
,
size_t
size
,
const
char
*
filename
)
{
PurpleStoredImage
*
img
;
g_return_val_if_fail
(
data
!=
NULL
,
NULL
);
g_return_val_if_fail
(
size
>
0
,
NULL
);
img
=
g_new
(
PurpleStoredImage
,
1
);
PURPLE_DBUS_REGISTER_POINTER
(
img
,
PurpleStoredImage
);
img
->
data
=
data
;
img
->
size
=
size
;
img
->
filename
=
g_strdup
(
filename
);
img
->
refcount
=
1
;
img
->
id
=
0
;
return
img
;
}
int
purple_imgstore_add_with_id
(
gpointer
data
,
size_t
size
,
const
char
*
filename
)
{
PurpleStoredImage
*
img
=
purple_imgstore_add
(
data
,
size
,
filename
);
if
(
img
)
{
img
->
id
=
++
nextid
;
g_hash_table_insert
(
imgstore
,
&
(
img
->
id
),
img
);
}
return
(
img
?
img
->
id
:
0
);
}
PurpleStoredImage
*
purple_imgstore_find_by_id
(
int
id
)
{
PurpleStoredImage
*
img
=
g_hash_table_lookup
(
imgstore
,
&
id
);
if
(
img
!=
NULL
)
purple_debug_misc
(
"imgstore"
,
"retrieved image id %d
\n
"
,
img
->
id
);
return
img
;
}
gconstpointer
purple_imgstore_get_data
(
PurpleStoredImage
*
img
)
{
g_return_val_if_fail
(
img
!=
NULL
,
NULL
);
return
img
->
data
;
}
size_t
purple_imgstore_get_size
(
PurpleStoredImage
*
img
)
{
g_return_val_if_fail
(
img
!=
NULL
,
0
);
return
img
->
size
;
}
const
char
*
purple_imgstore_get_filename
(
const
PurpleStoredImage
*
img
)
{
g_return_val_if_fail
(
img
!=
NULL
,
NULL
);
return
img
->
filename
;
}
const
char
*
purple_imgstore_get_extension
(
PurpleStoredImage
*
img
)
{
g_return_val_if_fail
(
img
!=
NULL
,
NULL
);
return
purple_util_get_image_extension
(
img
->
data
,
img
->
size
);
}
void
purple_imgstore_ref_by_id
(
int
id
)
{
PurpleStoredImage
*
img
=
purple_imgstore_find_by_id
(
id
);
g_return_if_fail
(
img
!=
NULL
);
purple_imgstore_ref
(
img
);
}
void
purple_imgstore_unref_by_id
(
int
id
)
{
PurpleStoredImage
*
img
=
purple_imgstore_find_by_id
(
id
);
g_return_if_fail
(
img
!=
NULL
);
purple_imgstore_unref
(
img
);
}
PurpleStoredImage
*
purple_imgstore_ref
(
PurpleStoredImage
*
img
)
{
g_return_val_if_fail
(
img
!=
NULL
,
NULL
);
img
->
refcount
++
;
return
img
;
}
PurpleStoredImage
*
purple_imgstore_unref
(
PurpleStoredImage
*
img
)
{
if
(
img
==
NULL
)
return
NULL
;
g_return_val_if_fail
(
img
->
refcount
>
0
,
NULL
);
img
->
refcount
--
;
if
(
img
->
refcount
==
0
)
{
purple_signal_emit
(
purple_imgstore_get_handle
(),
"image-deleting"
,
img
);
if
(
img
->
id
)
g_hash_table_remove
(
imgstore
,
&
img
->
id
);
g_free
(
img
->
data
);
g_free
(
img
->
filename
);
PURPLE_DBUS_UNREGISTER_POINTER
(
img
);
g_free
(
img
);
img
=
NULL
;
}
return
img
;
}
void
*
purple_imgstore_get_handle
()
{
static
int
handle
;
return
&
handle
;
}
void
purple_imgstore_init
()
{
void
*
handle
=
purple_imgstore_get_handle
();
purple_signal_register
(
handle
,
"image-deleting"
,
purple_marshal_VOID__POINTER
,
NULL
,
1
,
purple_value_new
(
PURPLE_TYPE_SUBTYPE
,
PURPLE_SUBTYPE_STORED_IMAGE
));
imgstore
=
g_hash_table_new
(
g_int_hash
,
g_int_equal
);
}
void
purple_imgstore_uninit
()
{
g_hash_table_destroy
(
imgstore
);
purple_signals_unregister_by_instance
(
purple_imgstore_get_handle
());
}