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/* Copyright (C) 2018 Curtis McEnroe <june@causal.agency>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#define _XOPEN_SOURCE_EXTENDED
#include <curses.h>
#include <err.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <wchar.h>
#include <wctype.h>
#include "chat.h"
static const int TOPIC_COLS = 512;
static const int CHAT_LINES = 100;
static const int INPUT_COLS = 512;
static struct {
WINDOW *topic;
WINDOW *chat;
WINDOW *input;
} ui;
void uiInit(void) {
setlocale(LC_CTYPE, "");
initscr();
cbreak();
noecho();
keypad(stdscr, true);
start_color();
use_default_colors();
for (short pair = 0; pair < 077; ++pair) {
if (pair < 010) {
init_pair(1 + pair, pair, -1);
} else {
init_pair(1 + pair, pair & 007, (pair & 070) >> 3);
}
}
ui.topic = newpad(2, TOPIC_COLS);
mvwhline(ui.topic, 1, 0, ACS_HLINE, TOPIC_COLS);
ui.chat = newpad(CHAT_LINES, COLS);
wsetscrreg(ui.chat, 0, CHAT_LINES - 1);
scrollok(ui.chat, true);
wmove(ui.chat, CHAT_LINES - (LINES - 4) - 1, 0);
ui.input = newpad(2, INPUT_COLS);
mvwhline(ui.input, 0, 0, ACS_HLINE, INPUT_COLS);
wmove(ui.input, 1, 0);
}
void uiHide(void) {
endwin();
}
void uiDraw(void) {
pnoutrefresh(ui.topic, 0, 0, 0, 0, 1, COLS - 1);
pnoutrefresh(
ui.chat,
CHAT_LINES - (LINES - 4), 0,
2, 0, LINES - 1, COLS - 1
);
pnoutrefresh(
ui.input,
0, 0,
LINES - 2, 0,
LINES - 1, COLS - 1
);
doupdate();
}
static const struct {
attr_t attr;
short color;
} MIRC_COLORS[16] = {
{ A_BOLD, COLOR_WHITE }, // white
{ A_NORMAL, COLOR_BLACK }, // black
{ A_NORMAL, COLOR_BLUE }, // blue
{ A_NORMAL, COLOR_GREEN }, // green
{ A_BOLD, COLOR_RED }, // red
{ A_NORMAL, COLOR_RED }, // "brown"
{ A_NORMAL, COLOR_MAGENTA }, // magenta
{ A_NORMAL, COLOR_YELLOW }, // "orange"
{ A_BOLD, COLOR_YELLOW }, // yellow
{ A_BOLD, COLOR_GREEN }, // light green
{ A_NORMAL, COLOR_CYAN }, // cyan
{ A_BOLD, COLOR_CYAN }, // light cyan
{ A_BOLD, COLOR_BLUE }, // light blue
{ A_BOLD, COLOR_MAGENTA }, // "pink"
{ A_BOLD, COLOR_BLACK }, // grey
{ A_NORMAL, COLOR_WHITE }, // light grey
};
static void uiAdd(WINDOW *win, const char *str) {
attr_t attr = A_NORMAL;
short colorPair = -1;
attr_t colorAttr = A_NORMAL;
for (;;) {
size_t cc = strcspn(str, "\2\3\35\37");
wattr_set(win, attr | colorAttr, 1 + colorPair, NULL);
waddnstr(win, str, cc);
if (!str[cc]) break;
str = &str[cc];
switch (*str++) {
break; case '\2': attr ^= A_BOLD;
break; case '\35': attr ^= A_ITALIC;
break; case '\37': attr ^= A_UNDERLINE;
break; case '\3': {
short fg = 0;
short bg = 0;
size_t fgLen = strspn(str, "0123456789");
if (!fgLen) {
colorPair = -1;
colorAttr = A_NORMAL;
break;
}
if (fgLen > 2) fgLen = 2;
for (size_t i = 0; i < fgLen; ++i) {
fg *= 10;
fg += str[i] - '0';
}
str = &str[fgLen];
size_t bgLen = (str[0] == ',') ? strspn(&str[1], "0123456789") : 0;
if (bgLen > 2) bgLen = 2;
for (size_t i = 0; i < bgLen; ++i) {
bg *= 10;
bg += str[1 + i] - '0';
}
if (bgLen) str = &str[1 + bgLen];
if (colorPair == -1) colorPair = 0;
colorPair = (colorPair & 070) | MIRC_COLORS[fg].color;
colorAttr = MIRC_COLORS[fg].attr;
if (bgLen) {
colorPair = (colorPair & 007) | (MIRC_COLORS[bg].color << 3);
}
}
}
}
}
void uiTopic(const char *topic) {
wmove(ui.topic, 0, 0);
wclrtoeol(ui.topic);
uiAdd(ui.topic, topic);
}
void uiChat(const char *line) {
waddch(ui.chat, '\n');
uiAdd(ui.chat, line);
}
void uiFmt(const char *format, ...) {
char *buf;
va_list ap;
va_start(ap, format);
vasprintf(&buf, format, ap);
va_end(ap);
if (!buf) err(EX_OSERR, "vasprintf");
uiChat(buf);
free(buf);
}
void uiRead(void) {
static wchar_t buf[512];
static size_t len;
wint_t ch;
wget_wch(ui.input, &ch);
switch (ch) {
break; case '\b': case '\177': {
if (len) len--;
}
break; case '\n': {
if (!len) break;
buf[len] = '\0';
input(buf);
len = 0;
}
break; default: {
if (iswprint(ch)) buf[len++] = ch;
}
}
wmove(ui.input, 1, 0);
waddnwstr(ui.input, buf, len);
wclrtoeol(ui.input);
}
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