pidgin/pidgin

Route GLib debug logging directly to the Finch debug window

2021-10-18, Elliott Sales de Andrade
1896a80ff8e3
Route GLib debug logging directly to the Finch debug window

Instead of flowing through purple debug, this merges some bits of the existing GLib log handler, and the purple debug printer.

Testing Done:
Open the Debug window an see some `GLib-*` outputs.

Reviewed at https://reviews.imfreedom.org/r/1057/
/*
* 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
*****************************************************************************/
void
pidgin_style_context_get_background_color(GdkRGBA *color) {
/* This value will leak, we could put a shutdown function in but right now
* that seems like a bit much for a few bytes.
*/
static GdkRGBA *background = NULL;
if(g_once_init_enter(&background)) {
GdkRGBA *bg = NULL;
GtkStyleContext *context = NULL;
GtkWidget *window = NULL;
/* We create a window to get its background color from its style
* context. This _is_ doable without creating a window, but you still
* need the window class and about four times as much code, so that's
* why we do it this way.
*/
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
context = gtk_widget_get_style_context(window);
gtk_style_context_get(context, GTK_STATE_FLAG_NORMAL,
GTK_STYLE_PROPERTY_BACKGROUND_COLOR, &bg,
NULL);
gtk_widget_destroy(window);
g_once_init_leave(&background, bg);
}
*color = *background;
}
gboolean
pidgin_style_context_is_dark(void) {
GdkRGBA bg;
gdouble luminance = 0.0;
if(dark_mode_have_cache) {
return dark_mode_cached_value;
}
pidgin_style_context_get_background_color(&bg);
/* 709 coefficients from https://en.wikipedia.org/wiki/Luma_(video) */
luminance = (0.2126 * bg.red) + (0.7152 * bg.green) + (0.0722 * bg.blue);
dark_mode_cached_value = (luminance < 0.5);
dark_mode_have_cache = TRUE;
return dark_mode_cached_value;
}