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Make PurpleIRCv3Connection Derivable
15 months ago, Gary Kramlich
7af8ab97086d
Make PurpleIRCv3Connection Derivable
This is going to be necessary for the protocol plugin to be subclassed.
Testing Done:
Compiled and connected to my local ergo instance.
Reviewed at https://reviews.imfreedom.org/r/2187/
/*
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* 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, see <https://www.gnu.org/licenses/>.
*/
#include
"libpurple/purplegdkpixbuf.h"
#include
"debug.h"
void
purple_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 convert 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
purple_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
;
}
static
GObject
*
purple_gdk_pixbuf_from_data_helper
(
const
guchar
*
buf
,
gsize
count
,
gboolean
animated
)
{
GObject
*
pixbuf
;
GdkPixbufLoader
*
loader
;
GError
*
error
=
NULL
;
loader
=
gdk_pixbuf_loader_new
();
if
(
!
gdk_pixbuf_loader_write
(
loader
,
buf
,
count
,
&
error
)
||
error
)
{
purple_debug_warning
(
"gtkutils"
,
"gdk_pixbuf_loader_write() "
"failed with size=%"
G_GSIZE_FORMAT
": %s
\n
"
,
count
,
error
?
error
->
message
:
"(no error message)"
);
if
(
error
)
g_error_free
(
error
);
g_object_unref
(
G_OBJECT
(
loader
));
return
NULL
;
}
if
(
!
gdk_pixbuf_loader_close
(
loader
,
&
error
)
||
error
)
{
purple_debug_warning
(
"gtkutils"
,
"gdk_pixbuf_loader_close() "
"failed for image of size %"
G_GSIZE_FORMAT
": %s
\n
"
,
count
,
error
?
error
->
message
:
"(no error message)"
);
if
(
error
)
g_error_free
(
error
);
g_object_unref
(
G_OBJECT
(
loader
));
return
NULL
;
}
if
(
animated
)
pixbuf
=
G_OBJECT
(
gdk_pixbuf_loader_get_animation
(
loader
));
else
pixbuf
=
G_OBJECT
(
gdk_pixbuf_loader_get_pixbuf
(
loader
));
if
(
!
pixbuf
)
{
purple_debug_warning
(
"gtkutils"
,
"%s() returned NULL for image "
"of size %"
G_GSIZE_FORMAT
"
\n
"
,
animated
?
"gdk_pixbuf_loader_get_animation"
:
"gdk_pixbuf_loader_get_pixbuf"
,
count
);
g_object_unref
(
G_OBJECT
(
loader
));
return
NULL
;
}
g_object_ref
(
pixbuf
);
g_object_unref
(
G_OBJECT
(
loader
));
return
pixbuf
;
}
GdkPixbuf
*
purple_gdk_pixbuf_from_data
(
const
guchar
*
buf
,
gsize
count
)
{
return
GDK_PIXBUF
(
purple_gdk_pixbuf_from_data_helper
(
buf
,
count
,
FALSE
));
}
GdkPixbuf
*
purple_gdk_pixbuf_from_image
(
PurpleImage
*
image
)
{
return
purple_gdk_pixbuf_from_data
(
purple_image_get_data
(
image
),
purple_image_get_data_size
(
image
));
}
GdkPixbuf
*
purple_gdk_pixbuf_new_from_file
(
const
gchar
*
filename
)
{
GdkPixbuf
*
pixbuf
;
GError
*
error
=
NULL
;
g_return_val_if_fail
(
filename
!=
NULL
,
NULL
);
g_return_val_if_fail
(
filename
[
0
]
!=
'\0'
,
NULL
);
pixbuf
=
gdk_pixbuf_new_from_file
(
filename
,
&
error
);
if
(
!
pixbuf
||
error
)
{
purple_debug_warning
(
"gtkutils"
,
"gdk_pixbuf_new_from_file() "
"returned %s for file %s: %s
\n
"
,
pixbuf
?
"something"
:
"nothing"
,
filename
,
error
?
error
->
message
:
"(no error message)"
);
if
(
error
)
g_error_free
(
error
);
if
(
pixbuf
)
g_object_unref
(
G_OBJECT
(
pixbuf
));
return
NULL
;
}
return
pixbuf
;
}
GdkPixbuf
*
purple_gdk_pixbuf_new_from_file_at_size
(
const
char
*
filename
,
int
width
,
int
height
)
{
GdkPixbuf
*
pixbuf
;
GError
*
error
=
NULL
;
g_return_val_if_fail
(
filename
!=
NULL
,
NULL
);
g_return_val_if_fail
(
filename
[
0
]
!=
'\0'
,
NULL
);
pixbuf
=
gdk_pixbuf_new_from_file_at_size
(
filename
,
width
,
height
,
&
error
);
if
(
!
pixbuf
||
error
)
{
purple_debug_warning
(
"gtkutils"
,
"gdk_pixbuf_new_from_file_at_size() "
"returned %s for file %s: %s
\n
"
,
pixbuf
?
"something"
:
"nothing"
,
filename
,
error
?
error
->
message
:
"(no error message)"
);
if
(
error
)
g_error_free
(
error
);
if
(
pixbuf
)
g_object_unref
(
G_OBJECT
(
pixbuf
));
return
NULL
;
}
return
pixbuf
;
}