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/* $Id: layout.c,v 1.3 2009-04-01 21:10:08 nicm Exp $ */
/*
* 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"
/*
* Layout functions: second argument (int) is 1 if definitely the /only/ change
* has been the active pane has changed. If 0 then panes, active pane or both
* may have changed.
*/
void layout_manual(struct window *, int);
void layout_active_only(struct window *, int);
void layout_even_horizontal(struct window *, int);
void layout_even_vertical(struct window *, int);
void layout_left_vertical(struct window *, int);
const struct {
const char *name;
void (*fn)(struct window *, int);
} layouts[] = {
{ "manual", layout_manual },
{ "active-only", layout_active_only },
{ "even-horizontal", layout_even_horizontal },
{ "even-vertical", layout_even_vertical },
{ "left-vertical", layout_left_vertical },
};
void
layout_next(struct window *w)
{
w->layout++;
if (w->layout > nitems(layouts) - 1) {
w->layout = 0;
/* XXX Special-case manual. */
window_fit_panes(w);
window_update_panes(w);
}
layout_refresh(w, 0);
}
void
layout_refresh(struct window *w, unused int active_changed)
{
layouts[w->layout].fn(w, active_changed);
server_redraw_window(w);
}
void
layout_manual(unused struct window *w, unused int active_changed)
{
}
void
layout_active_only(struct window *w, unused int active_changed)
{
struct window_pane *wp;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp == w->active) {
wp->flags &= ~PANE_HIDDEN;
wp->xoff = wp->yoff = 0;
window_pane_resize(wp, w->sx, w->sy);
} else
wp->flags |= PANE_HIDDEN;
}
}
void
layout_even_horizontal(struct window *w, int active_changed)
{
struct window_pane *wp;
u_int i, n, width, xoff;
if (active_changed)
return;
/* Get number of panes. */
n = window_count_panes(w);
if (n == 0)
return;
/* How many can we fit? */
if (w->sx / n < PANE_MINIMUM) {
width = PANE_MINIMUM;
n = w->sx / PANE_MINIMUM;
} else
width = w->sx / n;
/* Fit the panes. */
i = xoff = 0;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (i > n) {
wp->flags |= PANE_HIDDEN;
continue;
}
wp->flags &= ~PANE_HIDDEN;
wp->xoff = xoff;
wp->yoff = 0;
if (i != n - 1)
window_pane_resize(wp, width - 1, w->sy);
else
window_pane_resize(wp, width, w->sy);
i++;
xoff += width;
}
/* Any space left? */
while (xoff++ < w->sx) {
wp = TAILQ_LAST(&w->panes, window_panes);
window_pane_resize(wp, wp->sx + 1, wp->sy);
}
}
void
layout_even_vertical(struct window *w, int active_changed)
{
struct window_pane *wp;
u_int i, n, height, yoff;
if (active_changed)
return;
/* Get number of panes. */
n = window_count_panes(w);
if (n == 0)
return;
/* How many can we fit? */
if (w->sy / n < PANE_MINIMUM) {
height = PANE_MINIMUM;
n = w->sy / PANE_MINIMUM;
} else
height = w->sy / n;
/* Fit the panes. */
i = yoff = 0;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (i > n) {
wp->flags |= PANE_HIDDEN;
continue;
}
wp->flags &= ~PANE_HIDDEN;
wp->xoff = 0;
wp->yoff = yoff;
if (i != n - 1)
window_pane_resize(wp, w->sx, height - 1);
else
window_pane_resize(wp, w->sx, height);
i++;
yoff += height;
}
/* Any space left? */
while (yoff++ < w->sy) {
wp = TAILQ_LAST(&w->panes, window_panes);
window_pane_resize(wp, wp->sx, wp->sy + 1);
}
}
void
layout_left_vertical(struct window *w, int active_changed)
{
struct window_pane *wp;
u_int i, n, height, yoff;
if (active_changed)
return;
/* Get number of panes. */
n = window_count_panes(w);
if (n == 0)
return;
/* Need >1 pane and minimum columns; if fewer, display active only. */
if (n == 1 || w->sx < 82 + PANE_MINIMUM) {
layout_active_only(w, active_changed);
return;
}
n--;
/* How many can we fit, not including first? */
if (w->sy / n < PANE_MINIMUM) {
height = PANE_MINIMUM;
n = w->sy / PANE_MINIMUM;
} else
height = w->sy / n;
/* Fit the panes. */
i = yoff = 0;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp == TAILQ_FIRST(&w->panes)) {
wp->xoff = 0;
wp->yoff = 0;
window_pane_resize(wp, 81, w->sy);
wp->flags &= ~PANE_HIDDEN;
continue;
}
if (i > n) {
wp->flags |= PANE_HIDDEN;
continue;
}
wp->flags &= ~PANE_HIDDEN;
wp->xoff = 82;
wp->yoff = yoff;
if (i != n - 1)
window_pane_resize(wp, w->sx - 82, height - 1);
else
window_pane_resize(wp, w->sx - 82, height);
i++;
yoff += height;
}
/* Any space left? */
while (yoff++ < w->sy) {
wp = TAILQ_LAST(&w->panes, window_panes);
while (wp != NULL && wp == TAILQ_FIRST(&w->panes))
wp = TAILQ_PREV(wp, window_panes, entry);
if (wp == NULL)
break;
window_pane_resize(wp, wp->sx, wp->sy + 1);
}
}
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