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/* $Id: status.c,v 1.21 2008-06-04 16:46:23 nicm Exp $ */

/*
 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/time.h>

#include <stdarg.h>
#include <string.h>

#include "tmux.h"

void printflike3 status_print(struct buffer *, size_t *, const char *, ...);

void
status_write_client(struct client *c)
{
	struct screen_redraw_ctx	ctx;
	struct winlink	       	       *wl;
	char				flag, *left, *right;
	char			        lbuf[BUFSIZ], rbuf[BUFSIZ];
	size_t				llen, rlen;
	u_char				scolour;
	u_int				slines;

	scolour = options_get_number(&c->session->options, "status-colour");
	slines = options_get_number(&c->session->options, "status-lines");
	if (slines == 0 || c->sy <= slines)
		return;

	if (clock_gettime(CLOCK_REALTIME, &c->status_ts) != 0)
		fatal("clock_gettime");

	left = options_get_string(&c->session->options, "status-left");
	strftime(lbuf, sizeof lbuf, left, localtime(&(c->status_ts.tv_sec)));
	llen = strlen(lbuf) + 1;
	right = options_get_string(&c->session->options, "status-right");
	strftime(rbuf, sizeof rbuf, right, localtime(&(c->status_ts.tv_sec)));
	rlen = strlen(rbuf) + 1;

	c->status_ts.tv_sec += 
	    options_get_number(&c->session->options, "status-interval");

	screen_redraw_start_client(&ctx, c);
	screen_redraw_move_cursor(&ctx, llen, c->sy - slines);
	screen_redraw_set_attributes(&ctx, 0, scolour);

	RB_FOREACH(wl, winlinks, &c->session->windows) {
		flag = ' ';
		if (wl == c->session->lastw)
			flag = '-';
		if (wl == c->session->curw)
			flag = '*';
		if (session_alert_has(c->session, wl, WINDOW_ACTIVITY)) {
			flag = '#';
			screen_redraw_set_attributes(
			    &ctx, ATTR_REVERSE, scolour);
		}
		if (session_alert_has(c->session, wl, WINDOW_BELL)) {
			flag = '!';
			screen_redraw_set_attributes(
			    &ctx, ATTR_REVERSE, scolour);
		}
		screen_redraw_write_string(
		    &ctx, "%d:%s%c", wl->idx, wl->window->name, flag);
		if (flag == '!' || flag == '#')
			screen_redraw_set_attributes(&ctx, 0, scolour);
		screen_redraw_write_string(&ctx, " ");
		
		if (ctx.s->cx > screen_size_x(ctx.s) - rlen)
			break;
	}
	while (ctx.s->cx < screen_size_x(ctx.s) - rlen) {
		ctx.write(ctx.data, TTY_CHARACTER, ' ');
		ctx.s->cx++;
	}

	screen_redraw_move_cursor(&ctx, 0, c->sy - slines);
	screen_redraw_write_string(&ctx, "%s ", lbuf);

	screen_redraw_move_cursor(
	    &ctx, screen_size_x(ctx.s) - rlen, c->sy - slines);
	screen_redraw_write_string(&ctx, " %s", rbuf);

	screen_redraw_stop(&ctx);
}

void
status_write_window(struct window *w)
{
	struct client	*c;
	u_int		 i;

	if (w->flags & WINDOW_HIDDEN)
		return;

	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
		c = ARRAY_ITEM(&clients, i);
		if (c == NULL || c->session == NULL)
			continue;
		if (c->session->curw->window != w)
			continue;

		status_write_client(c);
	}
}

void
status_write_session(struct session *s)
{
	struct client	*c;
	u_int		 i;

	if (s->flags & SESSION_UNATTACHED)
		return;

	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
		c = ARRAY_ITEM(&clients, i);
		if (c == NULL || c->session != s)
			continue;
		status_write_client(c);
	}
}