From 4cda410b574c93c2ea7ad467e2b27809d0a0ba62 Mon Sep 17 00:00:00 2001 From: Curtis McEnroe Date: Mon, 25 Feb 2019 23:10:40 -0500 Subject: Move nick and tag coloring to color.c --- color.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 color.c (limited to 'color.c') diff --git a/color.c b/color.c new file mode 100644 index 0000000..f713451 --- /dev/null +++ b/color.c @@ -0,0 +1,50 @@ +/* Copyright (C) 2019 C. McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include + +#include "chat.h" + +// Adapted from . +static uint32_t hashChar(uint32_t hash, char ch) { + hash = (hash << 5) | (hash >> 27); + hash ^= ch; + hash *= 0x27220A95; + return hash; +} + +enum IRCColor colorGen(const char *str) { + if (!str) return IRCDefault; + uint32_t hash = 0; + for (; str[0]; ++str) { + hash = hashChar(hash, str[0]); + } + while (IRCBlack == (hash & IRCLightGray)) { + hash = hashChar(hash, '\0'); + } + return (hash & IRCLightGray); +} + +static enum IRCColor colors[TagsLen]; + +struct Tag colorTag(struct Tag tag, const char *gen) { + if (!colors[tag.id]) colors[tag.id] = 1 + colorGen(gen); + return tag; +} + +enum IRCColor colorFor(struct Tag tag) { + return colors[tag.id] ? colors[tag.id] - 1 : IRCDefault; +} -- cgit 1.4.1-2-gfad0