tmux/layout-manual.c
Nicholas Marriott 35876eaab9 Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti
2009-06-01 22:58:49 +00:00

184 lines
4.3 KiB
C

/* $OpenBSD$ */
/*
* Copyright (c) 2009 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 "tmux.h"
void layout_manual_v_update_offsets(struct window *);
void
layout_manual_v_refresh(struct window *w, unused int active_only)
{
struct window_pane *wp;
u_int npanes, canfit, total;
int left;
if (active_only)
return;
if (TAILQ_EMPTY(&w->panes))
return;
/* Clear hidden flags. */
TAILQ_FOREACH(wp, &w->panes, entry)
wp->flags &= ~PANE_HIDDEN;
/* Check the new size. */
npanes = window_count_panes(w);
if (w->sy <= PANE_MINIMUM * npanes) {
/* How many can we fit? */
canfit = w->sy / PANE_MINIMUM;
if (canfit == 0) {
/* None. Just use this size for the first. */
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp == TAILQ_FIRST(&w->panes))
wp->sy = w->sy;
else
wp->flags |= PANE_HIDDEN;
}
} else {
/* >=1, set minimum for them all. */
TAILQ_FOREACH(wp, &w->panes, entry) {
if (canfit-- > 0)
wp->sy = PANE_MINIMUM - 1;
else
wp->flags |= PANE_HIDDEN;
}
/* And increase the first by the rest. */
TAILQ_FIRST(&w->panes)->sy += 1 + w->sy % PANE_MINIMUM;
}
} else {
/* In theory they will all fit. Find the current total. */
total = 0;
TAILQ_FOREACH(wp, &w->panes, entry)
total += wp->sy;
total += npanes - 1;
/* Growing or shrinking? */
left = w->sy - total;
if (left > 0) {
/* Growing. Expand evenly. */
while (left > 0) {
TAILQ_FOREACH(wp, &w->panes, entry) {
wp->sy++;
if (--left == 0)
break;
}
}
} else {
/* Shrinking. Reduce evenly down to minimum. */
while (left < 0) {
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp->sy <= PANE_MINIMUM - 1)
continue;
wp->sy--;
if (++left == 0)
break;
}
}
}
}
/* Now do the resize. */
TAILQ_FOREACH(wp, &w->panes, entry) {
wp->sy--;
window_pane_resize(wp, w->sx, wp->sy + 1);
}
/* Fill in the offsets. */
layout_manual_v_update_offsets(w);
/* Switch the active window if necessary. */
window_set_active_pane(w, w->active);
}
void
layout_manual_v_resize(struct window_pane *wp, int adjust)
{
struct window *w = wp->window;
struct window_pane *wq;
if (adjust > 0) {
/*
* If this is not the last pane, keep trying to increase size
* and remove it from the next panes. If it is the last, do
* so on the previous pane.
*/
if (TAILQ_NEXT(wp, entry) == NULL) {
if (wp == TAILQ_FIRST(&w->panes)) {
/* Only one pane. */
return;
}
wp = TAILQ_PREV(wp, window_panes, entry);
}
while (adjust-- > 0) {
wq = wp;
while ((wq = TAILQ_NEXT(wq, entry)) != NULL) {
if (wq->sy <= PANE_MINIMUM)
continue;
window_pane_resize(wq, wq->sx, wq->sy - 1);
break;
}
if (wq == NULL)
break;
window_pane_resize(wp, wp->sx, wp->sy + 1);
}
} else {
adjust = -adjust;
/*
* If this is not the last pane, keep trying to reduce size
* and add to the following pane. If it is the last, do so on
* the previous pane.
*/
wq = TAILQ_NEXT(wp, entry);
if (wq == NULL) {
if (wp == TAILQ_FIRST(&w->panes)) {
/* Only one pane. */
return;
}
wq = wp;
wp = TAILQ_PREV(wq, window_panes, entry);
}
while (adjust-- > 0) {
if (wp->sy <= PANE_MINIMUM)
break;
window_pane_resize(wq, wq->sx, wq->sy + 1);
window_pane_resize(wp, wp->sx, wp->sy - 1);
}
}
layout_manual_v_update_offsets(w);
}
void
layout_manual_v_update_offsets(struct window *w)
{
struct window_pane *wp;
u_int yoff;
yoff = 0;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp->flags & PANE_HIDDEN)
continue;
wp->xoff = 0;
wp->yoff = yoff;
yoff += wp->sy + 1;
}
}