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Change status line drawing to create the window list in a separate screen and

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then copy it into the status line screen. This allows UTF-8 in window names and
fixes some problems with #[] in window-status-format.
This commit is contained in:
Nicholas Marriott 2009-11-19 19:47:28 +00:00
parent 543fb99bc6
commit 33b337f618
3 changed files with 207 additions and 187 deletions
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388
status.c
View File

@ -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_message_callback(int, short, void *);
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;
left = right = NULL;
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;
/* 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;
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;
/* 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);
/*
* 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 == s->curw)
offset = width;
width += size;
}
start = 0;
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 there is enough space for the total width, all is gravy. */
if (width <= xx)
if (wl == s->curw)
wloffset = wlwidth;
wlwidth += wl->status_width + 1;
}
/* 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--;
}
wlwidth = wlavailable;
} else {
/*
* 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;
}
width = xx;
goto draw;
/* Bail if anything is now too small too. */
if (wlwidth == 0 || wlavailable == 0) {
screen_free(&window_list);
goto out;
}
/*
* 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.
* Now the start position is known, work out the state of the left and
* right arrows.
*/
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, ' ');
} else {
if (larrow)
screen_write_cursormove(&ctx, 1, yy);
else
screen_write_cursormove(&ctx, 0, yy);
}
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, ' ');
}
/* Draw each character in succession. */
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 @@ draw:
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 @@ draw:
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)

4
tmux.h
View File

@ -844,6 +844,10 @@ struct winlink {
int idx;
struct window *window;
size_t status_width;
struct grid_cell status_cell;
char *status_text;
RB_ENTRY(winlink) entry;
TAILQ_ENTRY(winlink) sentry;
};

2
window.c
View File

@ -149,6 +149,8 @@ winlink_remove(struct winlinks *wwl, struct winlink *wl)
struct window *w = wl->window;
RB_REMOVE(winlinks, wwl, wl);
if (wl->status_text != NULL)
xfree(wl->status_text);
xfree(wl);
if (w->references == 0)