Split source into several files

Can't believe I have to do this.

1 files changed, 211 insertions, 0 deletions

diff --git a/ui.c b/ui.c
new file mode 100644
index 0000000..d0f56f0
--- /dev/null
+++ b/ui.c
@@ -0,0 +1,211 @@
+/* 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);
+}