pidgin/pidgin

zephyr_login refactoring

2021-01-11, Arkadiy Illarionov
d06e6660b39c
zephyr_login refactoring

* Add `login_tzc` and `login_zeph02` functions to remove redundant comparison
* Add `get_zephyr_realm` function to reduce code duplication
* Extract some functions
* Use `FALSE` in `purple_account_get_bool`
* Replace `read_anyone` and `read_zsubs` variables with functions calls

Testing Done:
Compile.

Reviewed at https://reviews.imfreedom.org/r/405/
/*
* 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
* 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 "pidgin/pidginstylecontext.h"
/* Assume light mode */
static gboolean dark_mode_have_cache = FALSE;
static gboolean dark_mode_cached_value = FALSE;
/******************************************************************************
* Public API
*****************************************************************************/
gboolean
pidgin_style_context_is_dark(GtkStyleContext *context) {
GdkRGBA bg;
gdouble luminance = 0.0;
if(context == NULL) {
if(dark_mode_have_cache) {
return dark_mode_cached_value;
}
context = gtk_style_context_new();
} else {
g_object_ref(G_OBJECT(context));
}
gtk_style_context_get(context, GTK_STATE_FLAG_NORMAL,
GTK_STYLE_PROPERTY_BACKGROUND_COLOR, &bg,
NULL);
g_object_unref(G_OBJECT(context));
/* magic values are taken from https://en.wikipedia.org/wiki/Luma_(video)
* Rec._601_luma_versus_Rec._709_luma_coefficients.
*/
luminance = (0.299 * bg.red) + (0.587 * bg.green) + (0.114 * bg.blue);
dark_mode_cached_value = (luminance < 0x7FFF);
dark_mode_have_cache = TRUE;
return dark_mode_cached_value;
}
void
pidgin_style_context_adjust_contrast(GtkStyleContext *context, GdkRGBA *rgba) {
if(pidgin_style_context_is_dark(context)) {
gdouble h, s, v;
gtk_rgb_to_hsv(rgba->red, rgba->green, rgba->blue, &h, &s, &v);
v += 0.3;
v = v > 1.0 ? 1.0 : v;
s = 0.7;
gtk_hsv_to_rgb(h, s, v, &rgba->red, &rgba->green, &rgba->blue);
}
}