pidgin/pidgin
Clone
Summary
Browse
Changes
Graph
Move smileys and themes to XDG data directory.
2019-10-08, Elliott Sales de Andrade
0ab521bb0887
Move smileys and themes to XDG data directory.
/* pidgin
*
* Pidgin 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
"pidgin/pidgingdkpixbuf.h"
GdkPixbuf
*
pidgin_gdk_pixbuf_new_from_image
(
PurpleImage
*
image
,
GError
**
error
)
{
GdkPixbufLoader
*
loader
=
NULL
;
GdkPixbuf
*
pixbuf
=
NULL
;
GBytes
*
data
=
NULL
;
gboolean
success
=
FALSE
;
g_return_val_if_fail
(
PURPLE_IS_IMAGE
(
image
),
NULL
);
data
=
purple_image_get_contents
(
image
);
success
=
gdk_pixbuf_loader_write_bytes
(
loader
,
data
,
error
);
g_bytes_unref
(
data
);
if
(
success
)
{
if
(
error
!=
NULL
&&
*
error
!=
NULL
)
{
g_object_unref
(
G_OBJECT
(
loader
));
return
NULL
;
}
if
(
gdk_pixbuf_loader_close
(
loader
,
error
))
{
pixbuf
=
gdk_pixbuf_loader_get_pixbuf
(
loader
);
if
(
pixbuf
!=
NULL
)
{
pixbuf
=
g_object_ref
(
pixbuf
);
}
}
g_object_unref
(
G_OBJECT
(
loader
));
}
return
pixbuf
;
}
void
pidgin_gdk_pixbuf_make_round
(
GdkPixbuf
*
pixbuf
)
{
gint
width
,
height
,
rowstride
;
guchar
*
pixels
;
if
(
!
gdk_pixbuf_get_has_alpha
(
pixbuf
))
{
return
;
}
width
=
gdk_pixbuf_get_width
(
pixbuf
);
height
=
gdk_pixbuf_get_height
(
pixbuf
);
rowstride
=
gdk_pixbuf_get_rowstride
(
pixbuf
);
pixels
=
gdk_pixbuf_get_pixels
(
pixbuf
);
if
(
width
<
6
||
height
<
6
)
{
return
;
}
/* The following code will conver the alpha of the pixel data in all
* corners to look something like the following diagram.
*
* 00 80 c0 FF FF c0 80 00
* 80 FF FF FF FF FF FF 80
* c0 FF FF FF FF FF FF c0
* FF FF FF FF FF FF FF FF
* FF FF FF FF FF FF FF FF
* c0 FF FF FF FF FF FF c0
* 80 FF FF FF FF FF FF 80
* 00 80 c0 FF FF c0 80 00
*/
/* Top left */
pixels
[
3
]
=
0
;
pixels
[
7
]
=
0x80
;
pixels
[
11
]
=
0xC0
;
pixels
[
rowstride
+
3
]
=
0x80
;
pixels
[
rowstride
*
2
+
3
]
=
0xC0
;
/* Top right */
pixels
[
width
*
4
-
1
]
=
0
;
pixels
[
width
*
4
-
5
]
=
0x80
;
pixels
[
width
*
4
-
9
]
=
0xC0
;
pixels
[
rowstride
+
(
width
*
4
)
-
1
]
=
0x80
;
pixels
[(
2
*
rowstride
)
+
(
width
*
4
)
-
1
]
=
0xC0
;
/* Bottom left */
pixels
[(
height
-
1
)
*
rowstride
+
3
]
=
0
;
pixels
[(
height
-
1
)
*
rowstride
+
7
]
=
0x80
;
pixels
[(
height
-
1
)
*
rowstride
+
11
]
=
0xC0
;
pixels
[(
height
-
2
)
*
rowstride
+
3
]
=
0x80
;
pixels
[(
height
-
3
)
*
rowstride
+
3
]
=
0xC0
;
/* Bottom right */
pixels
[
height
*
rowstride
-
1
]
=
0
;
pixels
[(
height
-
1
)
*
rowstride
-
1
]
=
0x80
;
pixels
[(
height
-
2
)
*
rowstride
-
1
]
=
0xC0
;
pixels
[
height
*
rowstride
-
5
]
=
0x80
;
pixels
[
height
*
rowstride
-
9
]
=
0xC0
;
}
gboolean
pidgin_gdk_pixbuf_is_opaque
(
GdkPixbuf
*
pixbuf
)
{
gint
height
,
rowstride
,
i
;
guchar
*
pixels
;
guchar
*
row
;
if
(
!
gdk_pixbuf_get_has_alpha
(
pixbuf
))
{
return
TRUE
;
}
height
=
gdk_pixbuf_get_height
(
pixbuf
);
rowstride
=
gdk_pixbuf_get_rowstride
(
pixbuf
);
pixels
=
gdk_pixbuf_get_pixels
(
pixbuf
);
/* check the top row */
row
=
pixels
;
for
(
i
=
3
;
i
<
rowstride
;
i
+=
4
)
{
if
(
row
[
i
]
<
0xfe
)
{
return
FALSE
;
}
}
/* check the left and right sides */
for
(
i
=
1
;
i
<
height
-
1
;
i
++
)
{
row
=
pixels
+
(
i
*
rowstride
);
if
(
row
[
3
]
<
0xfe
||
row
[
rowstride
-
1
]
<
0xfe
)
{
return
FALSE
;
}
}
/* check the bottom */
row
=
pixels
+
((
height
-
1
)
*
rowstride
);
for
(
i
=
3
;
i
<
rowstride
;
i
+=
4
)
{
if
(
row
[
i
]
<
0xfe
)
{
return
FALSE
;
}
}
return
TRUE
;
}