pidgin/pidgin

Install our appdata file to $(datadir)/metainfo as that change was made a long time ago
release-2.x.y
2021-04-09, Gary Kramlich
a817d80eeb79
Install our appdata file to $(datadir)/metainfo as that change was made a long time ago

This patch originates from Lars Wendler from Gentoo

https://gitweb.gentoo.org/repo/gentoo.git/commit/net-im/pidgin/files/pidgin-2.13.0-metainfo.patch?id=2dd6c1852251b5b67c3045badf173be9535b97a9

Testing Done:
Installed to a prefix and verified the file ended up in `$prefix/share/metainfo`

Reviewed at https://reviews.imfreedom.org/r/607/
/*
* @file gtkstyle.c GTK+ Style utility functions
* @ingroup pidgin
*/
/* pidgin
*
* 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 program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#include "gtkstyle.h"
/* Assume light mode */
static gboolean dark_mode_cache = FALSE;
gboolean
pidgin_style_is_dark(GtkStyle *style) {
GdkColor bg;
if (!style) {
return dark_mode_cache;
}
bg = style->base[GTK_STATE_NORMAL];
if (bg.red != 0xFFFF || bg.green != 0xFFFF || bg.blue != 0xFFFF) {
dark_mode_cache = ((int) bg.red + (int) bg.green + (int) bg.blue) < (65536 * 3 / 2);
}
return dark_mode_cache;
}
void
pidgin_style_adjust_contrast(GtkStyle *style, GdkColor *color) {
if (pidgin_style_is_dark(style)) {
gdouble r, g, b, h, s, v;
r = ((gdouble) color->red) / 65535.0;
g = ((gdouble) color->green) / 65535.0;
b = ((gdouble) color->blue) / 65535.0;
gtk_rgb_to_hsv(r, g, b, &h, &s, &v);
v += 0.3;
v = v > 1.0 ? 1.0 : v;
s = 0.7;
gtk_hsv_to_rgb(h, s, v, &r, &g, &b);
color->red = (guint16) (r * 65535.0);
color->green = (guint16) (g * 65535.0);
color->blue = (guint16) (b * 65535.0);
}
}