Add support for the author-name-color property to PidginMessage and wire it up in PurpleMessage as well

Testing Done:
Joined a chat and verified names were colored properly as well as in im's.

Reviewed at https://reviews.imfreedom.org/r/744/

1 files changed, 64 insertions, 0 deletions

diff --git a/pidgin/pidgincolor.h b/pidgin/pidgincolor.h
new file mode 100644
index 0000000000..5ddce08c51
--- /dev/null
+++ b/pidgin/pidgincolor.h
@@ -0,0 +1,64 @@
+/*
+ * 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/>.
+ */
+
+#if !defined(PIDGIN_GLOBAL_HEADER_INSIDE) && !defined(PIDGIN_COMPILATION)
+# error "only <pidgin.h> may be included directly"
+#endif
+
+/**
+ * SECTION:pidgincolor
+ * @section_id: pidgin-color
+ * @short_description: Color related API
+ * @title: Color API
+ *
+ * A collection of API to help with color.
+ */
+
+#ifndef PIDGIN_COLOR_H
+#define PIDGIN_COLOR_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+/**
+ * pidgin_color_calculate_for_text:
+ * @text: The text to calculate a color for.
+ * @color: (out): The return address for a #GdkRGBA that will recieve the
+ *         color.
+ *
+ * This function is based heavily on the implementation that gajim uses from
+ * python-nbxmpp in nbxmpp.util.text_to_color.  However, we don't have an
+ * implementation of HSL let alone HSLuv, so we're using HSV which is why
+ * the value is 1.0 instead of a luminance of 0.5.
+ *
+ * Currently there is no caching as GCache is deprecated and writing a fast LRU
+ * in glib is going to take a bit of finesse.  Also we'll need to figure out how
+ * to scale to ginormous Twitch channels which will constantly bust the cache.
+ *
+ * Since: 3.0.0
+ */
+void pidgin_color_calculate_for_text(const gchar *text,  GdkRGBA *color);
+
+G_END_DECLS
+
+#endif /* PIDGIN_COLOR_H */