=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/status.c,v retrieving revision 1.47 retrieving revision 1.48 diff -u -r1.47 -r1.48 --- src/usr.bin/tmux/status.c 2009/11/19 16:22:10 1.47 +++ src/usr.bin/tmux/status.c 2009/11/19 19:47:28 1.48 @@ -1,4 +1,4 @@ -/* $OpenBSD: status.c,v 1.47 2009/11/19 16:22:10 nicm Exp $ */ +/* $OpenBSD: status.c,v 1.48 2009/11/19 19:47:28 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott @@ -29,6 +29,10 @@ #include "tmux.h" +char *status_redraw_get_left( + struct client *, time_t, int, struct grid_cell *, size_t *); +char *status_redraw_get_right( + struct client *, time_t, int, struct grid_cell *, size_t *); char *status_job(struct client *, char **); void status_job_callback(struct job *); size_t status_width(struct client *, struct winlink *, time_t); @@ -41,195 +45,211 @@ void status_prompt_add_history(struct client *); char *status_prompt_complete(const char *); +/* Retrieve options for left string. */ +char * +status_redraw_get_left(struct client *c, + time_t t, int utf8flag, struct grid_cell *gc, size_t *size) +{ + struct session *s = c->session; + char *left; + u_char fg, bg, attr; + size_t leftlen; + + fg = options_get_number(&s->options, "status-left-fg"); + if (fg != 8) + colour_set_fg(gc, fg); + bg = options_get_number(&s->options, "status-left-bg"); + if (bg != 8) + colour_set_bg(gc, bg); + attr = options_get_number(&s->options, "status-left-attr"); + if (attr != 0) + gc->attr = attr; + + left = status_replace( + c, NULL, options_get_string(&s->options, "status-left"), t, 1); + + *size = options_get_number(&s->options, "status-left-length"); + leftlen = screen_write_cstrlen(utf8flag, "%s", left); + if (leftlen < *size) + *size = leftlen; + return (left); +} + +/* Retrieve options for right string. */ +char * +status_redraw_get_right(struct client *c, + time_t t, int utf8flag, struct grid_cell *gc, size_t *size) +{ + struct session *s = c->session; + char *right; + u_char fg, bg, attr; + size_t rightlen; + + fg = options_get_number(&s->options, "status-right-fg"); + if (fg != 8) + colour_set_fg(gc, fg); + bg = options_get_number(&s->options, "status-right-bg"); + if (bg != 8) + colour_set_bg(gc, bg); + attr = options_get_number(&s->options, "status-right-attr"); + if (attr != 0) + gc->attr = attr; + + right = status_replace( + c, NULL, options_get_string(&s->options, "status-right"), t, 1); + + *size = options_get_number(&s->options, "status-right-length"); + rightlen = screen_write_cstrlen(utf8flag, "%s", right); + if (rightlen < *size) + *size = rightlen; + return (right); +} + /* Draw status for client on the last lines of given context. */ int status_redraw(struct client *c) { - struct screen_write_ctx ctx; - struct session *s = c->session; - struct winlink *wl; - struct screen old_status; - char *left, *right, *text, *ptr; - size_t llen, llen2, rlen, rlen2, offset; - size_t ox, xx, yy, size, start, width; - struct grid_cell stdgc, sl_stdgc, sr_stdgc, gc; - int larrow, rarrow, utf8flag; - int sl_fg, sl_bg, sr_fg, sr_bg; - int sl_attr, sr_attr; + struct screen_write_ctx ctx; + struct session *s = c->session; + struct winlink *wl; + struct screen old_status, window_list; + struct grid_cell stdgc, lgc, rgc, gc; + time_t t; + char *left, *right; + u_int offset, needed; + u_int wlstart, wlwidth, wlavailable, wloffset, wlsize; + size_t llen, rlen; + int larrow, rarrow, utf8flag; - left = right = NULL; - /* No status line?*/ if (c->tty.sy == 0 || !options_get_number(&s->options, "status")) return (1); + left = right = NULL; larrow = rarrow = 0; - /* Create the target screen. */ - memcpy(&old_status, &c->status, sizeof old_status); - screen_init(&c->status, c->tty.sx, 1, 0); - + /* Update status timer. */ if (gettimeofday(&c->status_timer, NULL) != 0) fatal("gettimeofday failed"); + t = c->status_timer.tv_sec; + + /* Set up default colour. */ memcpy(&stdgc, &grid_default_cell, sizeof gc); colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg")); colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg")); stdgc.attr |= options_get_number(&s->options, "status-attr"); - /* - * Set the status-left and status-right parts to the default status - * line options and only change them where they differ from the - * defaults. - */ - memcpy(&sl_stdgc, &stdgc, sizeof sl_stdgc); - memcpy(&sr_stdgc, &stdgc, sizeof sr_stdgc); - sl_fg = options_get_number(&s->options, "status-left-fg"); - if (sl_fg != 8) - colour_set_fg(&sl_stdgc, sl_fg); - sl_bg = options_get_number(&s->options, "status-left-bg"); - if (sl_bg != 8) - colour_set_bg(&sl_stdgc, sl_bg); - sl_attr = options_get_number(&s->options, "status-left-attr"); - if (sl_attr != 0) - sl_stdgc.attr = sl_attr; - sr_fg = options_get_number(&s->options, "status-right-fg"); - if (sr_fg != 8) - colour_set_fg(&sr_stdgc, sr_fg); - sr_bg = options_get_number(&s->options, "status-right-bg"); - if (sr_bg != 8) - colour_set_bg(&sr_stdgc, sr_bg); - sr_attr = options_get_number(&s->options, "status-right-attr"); - if (sr_attr != 0) - sr_stdgc.attr = sr_attr; + /* Create the target screen. */ + memcpy(&old_status, &c->status, sizeof old_status); + screen_init(&c->status, c->tty.sx, 1, 0); + screen_write_start(&ctx, NULL, &c->status); + for (offset = 0; offset < c->tty.sx; offset++) + screen_write_putc(&ctx, &stdgc, ' '); + screen_write_stop(&ctx); - yy = c->tty.sy - 1; - if (yy == 0) - goto blank; + /* If the height is one line, blank status line. */ + if (c->tty.sy <= 1) + goto out; - /* Caring about UTF-8 in status line? */ + /* Get UTF-8 flag. */ utf8flag = options_get_number(&s->options, "status-utf8"); - /* Work out the left and right strings. */ - left = status_replace(c, NULL, options_get_string( - &s->options, "status-left"), c->status_timer.tv_sec, 1); - llen = options_get_number(&s->options, "status-left-length"); - llen2 = screen_write_cstrlen(utf8flag, "%s", left); - if (llen2 < llen) - llen = llen2; + /* Work out left and right strings. */ + memcpy(&lgc, &stdgc, sizeof lgc); + left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen); + memcpy(&rgc, &stdgc, sizeof rgc); + right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen); - right = status_replace(c, NULL, options_get_string( - &s->options, "status-right"), c->status_timer.tv_sec, 1); - rlen = options_get_number(&s->options, "status-right-length"); - rlen2 = screen_write_cstrlen(utf8flag, "%s", right); - if (rlen2 < rlen) - rlen = rlen2; - /* - * Figure out how much space we have for the window list. If there isn't - * enough space, just wimp out. + * Figure out how much space we have for the window list. If there + * isn't enough space, just show a blank status line. */ - xx = 0; + needed = 0; if (llen != 0) - xx += llen + 1; + needed += llen + 1; if (rlen != 0) - xx += rlen + 1; - if (c->tty.sx == 0 || c->tty.sx <= xx) - goto blank; - xx = c->tty.sx - xx; + needed += rlen + 1; + if (c->tty.sx == 0 || c->tty.sx <= needed) + goto out; + wlavailable = c->tty.sx - needed; - /* - * Right. We have xx characters to fill. Find out how much is to go in - * them and the offset of the current window (it must be on screen). - */ - width = offset = 0; + /* Calculate the total size needed for the window list. */ + wlstart = wloffset = wlwidth = 0; RB_FOREACH(wl, winlinks, &s->windows) { - size = status_width(c, wl, c->status_timer.tv_sec) + 1; + if (wl->status_text != NULL) + xfree(wl->status_text); + memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell); + wl->status_text = status_print(c, wl, t, &wl->status_cell); + wl->status_width = + screen_write_cstrlen(utf8flag, "%s", wl->status_text); + if (wl == s->curw) - offset = width; - width += size; + wloffset = wlwidth; + wlwidth += wl->status_width + 1; } - start = 0; - /* If there is enough space for the total width, all is gravy. */ - if (width <= xx) + /* Create a new screen for the window list. */ + screen_init(&window_list, wlwidth, 1, 0); + + /* And draw the window list into it. */ + screen_write_start(&ctx, NULL, &window_list); + RB_FOREACH(wl, winlinks, &s->windows) { + screen_write_cnputs(&ctx, + -1, &wl->status_cell, utf8flag, "%s", wl->status_text); + screen_write_putc(&ctx, &stdgc, ' '); + } + screen_write_stop(&ctx); + + /* If there is enough space for the total width, skip to draw now. */ + if (wlwidth <= wlavailable) goto draw; /* Find size of current window text. */ - size = status_width(c, s->curw, c->status_timer.tv_sec); + wlsize = s->curw->status_width; /* - * If the offset is already on screen, we're good to draw from the + * If the current window is already on screen, good to draw from the * start and just leave off the end. */ - if (offset + size < xx) { - if (xx > 0) { + if (wloffset + wlsize < wlavailable) { + if (wlavailable > 0) { rarrow = 1; - xx--; + wlavailable--; } - - width = xx; - goto draw; - } - - /* - * Work out how many characters we need to omit from the start. There - * are xx characters to fill, and offset + size must be the last. So, - * the start character is offset + size - xx. - */ - if (xx > 0) { - larrow = 1; - xx--; - } - - start = offset + size - xx; - if (xx > 0 && width > start + xx + 1) { /* + 1, eh? */ - rarrow = 1; - start++; - xx--; - } - width = xx; - -draw: - /* Bail here if anything is too small too. XXX. */ - if (width == 0 || xx == 0) - goto blank; - - /* Begin drawing and move to the starting position. */ - screen_write_start(&ctx, NULL, &c->status); - if (llen != 0) { - screen_write_cursormove(&ctx, 0, yy); - screen_write_cnputs(&ctx, llen, &sl_stdgc, utf8flag, "%s", left); - screen_write_putc(&ctx, &stdgc, ' '); - if (larrow) - screen_write_putc(&ctx, &stdgc, ' '); + wlwidth = wlavailable; } else { - if (larrow) - screen_write_cursormove(&ctx, 1, yy); - else - screen_write_cursormove(&ctx, 0, yy); + /* + * Work out how many characters we need to omit from the + * start. There are wlavailable characters to fill, and + * wloffset + wlsize must be the last. So, the start character + * is wloffset + wlsize - wlavailable. + */ + if (wlavailable > 0) { + larrow = 1; + wlavailable--; + } + + wlstart = wloffset + wlsize - wlavailable; + if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) { + rarrow = 1; + wlstart++; + wlavailable--; + } + wlwidth = wlavailable; } - ox = 0; - if (width < xx) { - switch (options_get_number(&s->options, "status-justify")) { - case 1: /* centered */ - ox = 1 + (xx - width) / 2; - break; - case 2: /* right */ - ox = 1 + (xx - width); - break; - } - xx -= ox; - while (ox-- > 0) - screen_write_putc(&ctx, &stdgc, ' '); + /* Bail if anything is now too small too. */ + if (wlwidth == 0 || wlavailable == 0) { + screen_free(&window_list); + goto out; } - /* Draw each character in succession. */ + /* + * Now the start position is known, work out the state of the left and + * right arrows. + */ offset = 0; RB_FOREACH(wl, winlinks, &s->windows) { - memcpy(&gc, &stdgc, sizeof gc); - text = status_print(c, wl, c->status_timer.tv_sec, &gc); - - if (larrow == 1 && offset < start) { + if (larrow == 1 && offset < wlstart) { if (session_alert_has(s, wl, WINDOW_ACTIVITY)) larrow = -1; else if (session_alert_has(s, wl, WINDOW_BELL)) @@ -238,16 +258,9 @@ larrow = -1; } - ptr = text; - for (; offset < start; offset++) - ptr++; /* XXX should skip UTF-8 characters */ - if (offset < start + width) { - screen_write_cnputs(&ctx, - start + width - offset, &gc, utf8flag, "%s", text); - offset += screen_write_cstrlen(utf8flag, "%s", text); - } + offset += wl->status_width; - if (rarrow == 1 && offset > start + width) { + if (rarrow == 1 && offset > wlstart + wlwidth) { if (session_alert_has(s, wl, WINDOW_ACTIVITY)) rarrow = -1; else if (session_alert_has(s, wl, WINDOW_BELL)) @@ -255,62 +268,63 @@ else if (session_alert_has(s, wl, WINDOW_CONTENT)) rarrow = -1; } - - if (offset < start + width) { - if (offset >= start) { - screen_write_putc(&ctx, &stdgc, ' '); - } - offset++; - } - - xfree(text); } - /* Fill the remaining space if any. */ - while (offset++ < xx) - screen_write_putc(&ctx, &stdgc, ' '); +draw: + /* Begin drawing. */ + screen_write_start(&ctx, NULL, &c->status); - /* Draw the last item. */ - if (rlen != 0) { - screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, yy); + /* Draw the left string and arrow. */ + screen_write_cursormove(&ctx, 0, 0); + if (llen != 0) { + screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left); screen_write_putc(&ctx, &stdgc, ' '); - screen_write_cnputs(&ctx, rlen, &sr_stdgc, utf8flag, "%s", right); } - - /* Draw the arrows. */ if (larrow != 0) { memcpy(&gc, &stdgc, sizeof gc); if (larrow == -1) gc.attr ^= GRID_ATTR_REVERSE; - if (llen != 0) - screen_write_cursormove(&ctx, llen + 1, yy); - else - screen_write_cursormove(&ctx, 0, yy); screen_write_putc(&ctx, &gc, '<'); } + + /* Draw the right string and arrow. */ if (rarrow != 0) { + screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0); memcpy(&gc, &stdgc, sizeof gc); if (rarrow == -1) gc.attr ^= GRID_ATTR_REVERSE; - if (rlen != 0) - screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, yy); - else - screen_write_cursormove(&ctx, c->tty.sx - 1, yy); screen_write_putc(&ctx, &gc, '>'); + } else + screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0); + if (rlen != 0) { + screen_write_putc(&ctx, &stdgc, ' '); + screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right); } - goto out; + /* Figure out the offset for the window list. */ + wloffset = 1; + if (wlwidth < wlavailable) { + switch (options_get_number(&s->options, "status-justify")) { + case 1: /* centered */ + wloffset = 1 + (wlavailable - wlwidth) / 2; + break; + case 2: /* right */ + wloffset = 1 + (wlavailable - wlwidth); + break; + } + } + wloffset += llen; + if (larrow != 0) + wloffset++; -blank: - /* Just draw the whole line as blank. */ - screen_write_start(&ctx, NULL, &c->status); - screen_write_cursormove(&ctx, 0, yy); - for (offset = 0; offset < c->tty.sx; offset++) - screen_write_putc(&ctx, &stdgc, ' '); + /* Copy the window list. */ + screen_write_cursormove(&ctx, wloffset, 0); + screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1); + screen_free(&window_list); -out: screen_write_stop(&ctx); +out: if (left != NULL) xfree(left); if (right != NULL)