pidgin/pidgin

Make purple_contact_new take the id instead of the username.

20 months ago, Gary Kramlich
1ecc0512e714
Make purple_contact_new take the id instead of the username.

Username is already readwrite, but id is not, and most protocols have id's for
everything, so lets make that the normal case in the api.

Testing Done:
Ran the unit tests.

Reviewed at https://reviews.imfreedom.org/r/1851/
/*
* 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;
}