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Add an escaped-name property to PurpleSavedPresence
11 months ago, Gary Kramlich
0c86a3fa4617
Add an escaped-name property to PurpleSavedPresence
This is mean to be used for serialization, name in GSettings paths. We still
need to determine what to do if the name is NULL, but maybe the serialization
routine can handle that.
Testing Done:
Ran the unit tests
Reviewed at https://reviews.imfreedom.org/r/2492/
/*
* Pidgin - Internet Messenger
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* 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 library; if not, see <https://www.gnu.org/licenses/>.
*/
#include
"pidgincolor.h"
/******************************************************************************
* Public API
*****************************************************************************/
void
pidgin_color_calculate_for_text
(
const
gchar
*
text
,
GdkRGBA
*
color
)
{
GdkRGBA
background
;
GChecksum
*
checksum
=
NULL
;
guchar
digest
[
20
];
gsize
digest_len
=
sizeof
(
digest
);
gfloat
hue
=
0
,
red
=
0
,
green
=
0
,
blue
=
0
;
g_return_if_fail
(
color
!=
NULL
);
#warning figure out how to get the background color
gdk_rgba_parse
(
&
background
,
"#FFFFFFFF"
);
/* hash the string and get the first 2 bytes of the digest */
checksum
=
g_checksum_new
(
G_CHECKSUM_SHA1
);
if
(
text
!=
NULL
)
{
g_checksum_update
(
checksum
,
(
const
guchar
*
)
text
,
-1
);
}
g_checksum_get_digest
(
checksum
,
digest
,
&
digest_len
);
g_checksum_free
(
checksum
);
/* Calculate the hue based on the digest. We need a value between 0 and 1
* so we divide the value by 65535 which is the maximum value for 2 bytes.
*/
hue
=
(
digest
[
0
]
<<
8
|
digest
[
1
])
/
65535.0f
;
/* Get the rgb values for the hue at full saturation and value. */
gtk_hsv_to_rgb
(
hue
,
1.0f
,
1.0f
,
&
red
,
&
green
,
&
blue
);
/* Finally calculate the color summing 20% of the inverted background color
* with 80% of the color.
*/
color
->
red
=
(
0.2f
*
(
1
-
background
.
red
))
+
(
0.8f
*
red
);
color
->
green
=
(
0.2f
*
(
1
-
background
.
green
))
+
(
0.8f
*
green
);
color
->
blue
=
(
0.2f
*
(
1
-
background
.
blue
))
+
(
0.8f
*
blue
);
color
->
alpha
=
1.0f
;
}