Sync OpenBSD patchset 732:

Custom layouts. list-windows command displays the layout as a string (such as
"bb62,159x48,0,0{79x48,0,0,79x48,80,0}") and it can be applied to another
window (with the same number of panes or fewer) using select-layout.
This commit is contained in:
Tiago Cunha 2010-07-02 02:54:52 +00:00
parent e4573de97b
commit e4703bacb5
7 changed files with 388 additions and 65 deletions

View File

@ -1,4 +1,4 @@
/* $Id: cmd-list-windows.c,v 1.42 2009-11-14 17:56:39 tcunha Exp $ */
/* $Id: cmd-list-windows.c,v 1.43 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -45,6 +45,7 @@ cmd_list_windows_exec(struct cmd *self, struct cmd_ctx *ctx)
struct cmd_target_data *data = self->data;
struct session *s;
struct winlink *wl;
char *layout;
if ((s = cmd_find_session(ctx, data->target)) == NULL)
return (-1);
@ -52,6 +53,9 @@ cmd_list_windows_exec(struct cmd *self, struct cmd_ctx *ctx)
RB_FOREACH(wl, winlinks, &s->windows) {
ctx->print(ctx, "%d: %s [%ux%u]",
wl->idx, wl->window->name, wl->window->sx, wl->window->sy);
layout = layout_dump(wl->window);
ctx->print(ctx, " layout: %s", layout);
xfree(layout);
}
return (0);

View File

@ -1,4 +1,4 @@
/* $Id: cmd-select-layout.c,v 1.11 2010-05-14 14:16:37 tcunha Exp $ */
/* $Id: cmd-select-layout.c,v 1.12 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@ -79,13 +79,16 @@ cmd_select_layout_exec(struct cmd *self, struct cmd_ctx *ctx)
layout = wl->window->lastlayout;
if (layout == -1)
return (0);
} else if ((layout = layout_set_lookup(data->arg)) == -1) {
ctx->error(ctx, "unknown layout or ambiguous: %s", data->arg);
return (-1);
} else if ((layout = layout_set_lookup(data->arg)) != -1) {
layout = layout_set_select(wl->window, layout);
ctx->info(ctx, "arranging in: %s", layout_set_name(layout));
} else {
if (layout_parse(wl->window, data->arg) == -1) {
ctx->error(ctx, "can't set layout: %s", data->arg);
return (-1);
}
ctx->info(ctx, "arranging in: %s", data->arg);
}
layout = layout_set_select(wl->window, layout);
ctx->info(ctx, "arranging in: %s", layout_set_name(layout));
return (0);
}

264
layout-custom.c Normal file
View File

@ -0,0 +1,264 @@
/* $Id: layout-custom.c,v 1.1 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2010 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 <ctype.h>
#include <string.h>
#include "tmux.h"
u_short layout_checksum(const char *);
int layout_append(struct layout_cell *, char *, size_t);
struct layout_cell *layout_construct(struct layout_cell *, const char **);
void layout_assign(struct window_pane **, struct layout_cell *);
/* Calculate layout checksum. */
u_short
layout_checksum(const char *layout)
{
u_short csum;
csum = 0;
for (; *layout != '\0'; layout++) {
csum = (csum >> 1) + ((csum & 1) << 15);
csum += *layout;
}
return (csum);
}
/* Dump layout as a string. */
char *
layout_dump(struct window *w)
{
char layout[BUFSIZ], *out;
*layout = '\0';
if (layout_append(w->layout_root, layout, sizeof layout) != 0)
return (NULL);
xasprintf(&out, "%4x,%s", layout_checksum(layout), layout);
return (out);
}
/* Append information for a single cell. */
int
layout_append(struct layout_cell *lc, char *buf, size_t len)
{
struct layout_cell *lcchild;
char tmp[64];
size_t tmplen;
const char *brackets = "][";
if (len == 0)
return (-1);
tmplen = xsnprintf(tmp, sizeof tmp,
"%ux%u,%u,%u", lc->sx, lc->sy, lc->xoff, lc->yoff);
if (tmplen > (sizeof tmp) - 1)
return (-1);
if (strlcat(buf, tmp, len) >= len)
return (-1);
switch (lc->type) {
case LAYOUT_LEFTRIGHT:
brackets = "}{";
/* FALLTHROUGH */
case LAYOUT_TOPBOTTOM:
if (strlcat(buf, &brackets[1], len) >= len)
return (-1);
TAILQ_FOREACH(lcchild, &lc->cells, entry) {
if (layout_append(lcchild, buf, len) != 0)
return (-1);
if (strlcat(buf, ",", len) >= len)
return (-1);
}
buf[strlen(buf) - 1] = brackets[0];
break;
case LAYOUT_WINDOWPANE:
break;
}
return (0);
}
/* Parse a layout string and arrange window as layout. */
int
layout_parse(struct window *w, const char *layout)
{
struct layout_cell *lc, *lcchild;
struct window_pane *wp;
u_int npanes, ncells, sx, sy;
u_short csum;
/* Check validity. */
if (sscanf(layout, "%hx,", &csum) != 1)
return (-1);
layout += 5;
if (csum != layout_checksum(layout))
return (-1);
/* Build the layout. */
lc = layout_construct(NULL, &layout);
if (lc == NULL)
return (-1);
if (*layout != '\0')
goto fail;
/* Check this window will fit into the layout. */
for (;;) {
npanes = window_count_panes(w);
ncells = layout_count_cells(lc);
if (npanes > ncells)
goto fail;
if (npanes == ncells)
break;
/* Fewer panes than cells - close the bottom right. */
lcchild = layout_find_bottomright(lc);
layout_destroy_cell(lcchild, &lc);
}
/* Save the old window size and resize to the layout size. */
sx = w->sx; sy = w->sy;
window_resize(w, lc->sx, lc->sy);
/* Destroy the old layout and swap to the new. */
layout_free_cell(w->layout_root);
w->layout_root = lc;
/* Assign the panes into the cells. */
wp = TAILQ_FIRST(&w->panes);
layout_assign(&wp, lc);
/* Update pane offsets and sizes. */
layout_fix_offsets(lc);
layout_fix_panes(w, lc->sx, lc->sy);
/* Then resize the layout back to the original window size. */
layout_resize(w, sx, sy);
window_resize(w, sx, sy);
layout_print_cell(lc, __func__, 0);
return (0);
fail:
layout_free_cell(lc);
return (-1);
}
/* Assign panes into cells. */
void
layout_assign(struct window_pane **wp, struct layout_cell *lc)
{
struct layout_cell *lcchild;
switch (lc->type) {
case LAYOUT_WINDOWPANE:
layout_make_leaf(lc, *wp);
*wp = TAILQ_NEXT(*wp, entry);
return;
case LAYOUT_LEFTRIGHT:
case LAYOUT_TOPBOTTOM:
TAILQ_FOREACH(lcchild, &lc->cells, entry)
layout_assign(wp, lcchild);
return;
}
}
/* Construct a cell from all or part of a layout tree. */
struct layout_cell *
layout_construct(struct layout_cell *lcparent, const char **layout)
{
struct layout_cell *lc, *lcchild;
u_int sx, sy, xoff, yoff;
if (!isdigit((u_char) **layout))
return (NULL);
if (sscanf(*layout, "%ux%u,%u,%u", &sx, &sy, &xoff, &yoff) != 4)
return (NULL);
while (isdigit((u_char) **layout))
(*layout)++;
if (**layout != 'x')
return (NULL);
(*layout)++;
while (isdigit((u_char) **layout))
(*layout)++;
if (**layout != ',')
return (NULL);
(*layout)++;
while (isdigit((u_char) **layout))
(*layout)++;
if (**layout != ',')
return (NULL);
(*layout)++;
while (isdigit((u_char) **layout))
(*layout)++;
lc = layout_create_cell(lcparent);
lc->sx = sx;
lc->sy = sy;
lc->xoff = xoff;
lc->yoff = yoff;
switch (**layout) {
case ',':
case '}':
case ']':
case '\0':
return (lc);
case '{':
lc->type = LAYOUT_LEFTRIGHT;
break;
case '[':
lc->type = LAYOUT_TOPBOTTOM;
break;
default:
goto fail;
}
do {
(*layout)++;
lcchild = layout_construct(lc, layout);
if (lcchild == NULL)
goto fail;
TAILQ_INSERT_TAIL(&lc->cells, lcchild, entry);
} while (**layout == ',');
switch (lc->type) {
case LAYOUT_LEFTRIGHT:
if (**layout != '}')
goto fail;
break;
case LAYOUT_TOPBOTTOM:
if (**layout != ']')
goto fail;
break;
default:
goto fail;
}
(*layout)++;
return (lc);
fail:
layout_free_cell(lc);
return (NULL);
}

View File

@ -1,4 +1,4 @@
/* $Id: layout-string.c,v 1.3 2010-01-08 16:28:04 tcunha Exp $ */
/* $Id: layout-string.c,v 1.4 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@ -36,7 +36,6 @@ struct layout_cell *layout_find_right(struct layout_cell *);
struct layout_cell *layout_find_topleft(struct layout_cell *);
struct layout_cell *layout_find_topright(struct layout_cell *);
struct layout_cell *layout_find_bottomleft(struct layout_cell *);
struct layout_cell *layout_find_bottomright(struct layout_cell *);
/* Find the cell; returns NULL if string not understood. */
struct layout_cell *

130
layout.c
View File

@ -1,4 +1,4 @@
/* $Id: layout.c,v 1.18 2010-01-08 16:31:35 tcunha Exp $ */
/* $Id: layout.c,v 1.19 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@ -218,6 +218,27 @@ layout_fix_panes(struct window *w, u_int wsx, u_int wsy)
}
}
/* Count the number of available cells in a layout. */
u_int
layout_count_cells(struct layout_cell *lc)
{
struct layout_cell *lcchild;
u_int n;
switch (lc->type) {
case LAYOUT_WINDOWPANE:
return (1);
case LAYOUT_LEFTRIGHT:
case LAYOUT_TOPBOTTOM:
n = 0;
TAILQ_FOREACH(lcchild, &lc->cells, entry)
n += layout_count_cells(lcchild);
return (n);
default:
fatalx("bad layout type");
}
}
/* Calculate how much size is available to be removed from a cell. */
u_int
layout_resize_check(struct layout_cell *lc, enum layout_type type)
@ -302,6 +323,56 @@ layout_resize_adjust(struct layout_cell *lc, enum layout_type type, int change)
}
}
/* Destroy a cell and redistribute the space. */
void
layout_destroy_cell(struct layout_cell *lc, struct layout_cell **lcroot)
{
struct layout_cell *lcother, *lcparent;
/*
* If no parent, this is the last pane so window close is imminent and
* there is no need to resize anything.
*/
lcparent = lc->parent;
if (lcparent == NULL) {
layout_free_cell(lc);
*lcroot = NULL;
return;
}
/* Merge the space into the previous or next cell. */
if (lc == TAILQ_FIRST(&lcparent->cells))
lcother = TAILQ_NEXT(lc, entry);
else
lcother = TAILQ_PREV(lc, layout_cells, entry);
if (lcparent->type == LAYOUT_LEFTRIGHT)
layout_resize_adjust(lcother, lcparent->type, lc->sx + 1);
else
layout_resize_adjust(lcother, lcparent->type, lc->sy + 1);
/* Remove this from the parent's list. */
TAILQ_REMOVE(&lcparent->cells, lc, entry);
layout_free_cell(lc);
/*
* If the parent now has one cell, remove the parent from the tree and
* replace it by that cell.
*/
lc = TAILQ_FIRST(&lcparent->cells);
if (TAILQ_NEXT(lc, entry) == NULL) {
TAILQ_REMOVE(&lcparent->cells, lc, entry);
lc->parent = lcparent->parent;
if (lc->parent == NULL) {
lc->xoff = 0; lc->yoff = 0;
*lcroot = lc;
} else
TAILQ_REPLACE(&lc->parent->cells, lcparent, lc, entry);
layout_free_cell(lcparent);
}
}
void
layout_init(struct window *w)
{
@ -597,59 +668,16 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size)
return (lcnew);
}
/* Destroy the layout associated with a pane and redistribute the space. */
/* Destroy the cell associated with a pane. */
void
layout_close_pane(struct window_pane *wp)
{
struct layout_cell *lc, *lcother, *lcparent;
lc = wp->layout_cell;
lcparent = lc->parent;
/*
* If no parent, this is the last pane so window close is imminent and
* there is no need to resize anything.
*/
if (lcparent == NULL) {
layout_free_cell(lc);
wp->window->layout_root = NULL;
return;
}
/* Merge the space into the previous or next cell. */
if (lc == TAILQ_FIRST(&lcparent->cells))
lcother = TAILQ_NEXT(lc, entry);
else
lcother = TAILQ_PREV(lc, layout_cells, entry);
if (lcparent->type == LAYOUT_LEFTRIGHT)
layout_resize_adjust(lcother, lcparent->type, lc->sx + 1);
else
layout_resize_adjust(lcother, lcparent->type, lc->sy + 1);
/* Remove this from the parent's list. */
TAILQ_REMOVE(&lcparent->cells, lc, entry);
layout_free_cell(lc);
/*
* If the parent now has one cell, remove the parent from the tree and
* replace it by that cell.
*/
lc = TAILQ_FIRST(&lcparent->cells);
if (TAILQ_NEXT(lc, entry) == NULL) {
TAILQ_REMOVE(&lcparent->cells, lc, entry);
lc->parent = lcparent->parent;
if (lc->parent == NULL) {
lc->xoff = 0; lc->yoff = 0;
wp->window->layout_root = lc;
} else
TAILQ_REPLACE(&lc->parent->cells, lcparent, lc, entry);
layout_free_cell(lcparent);
}
/* Remove the cell. */
layout_destroy_cell(wp->layout_cell, &wp->window->layout_root);
/* Fix pane offsets and sizes. */
layout_fix_offsets(wp->window->layout_root);
layout_fix_panes(wp->window, wp->window->sx, wp->window->sy);
if (wp->window->layout_root != NULL) {
layout_fix_offsets(wp->window->layout_root);
layout_fix_panes(wp->window, wp->window->sx, wp->window->sy);
}
}

24
tmux.1
View File

@ -1,4 +1,4 @@
.\" $Id: tmux.1,v 1.262 2010-07-02 02:49:19 tcunha Exp $
.\" $Id: tmux.1,v 1.263 2010-07-02 02:54:52 tcunha Exp $
.\"
.\" Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
.\"
@ -14,7 +14,7 @@
.\" IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
.\" OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: June 27 2010 $
.Dd $Mdocdate: June 29 2010 $
.Dt TMUX 1
.Os
.Sh NAME
@ -877,6 +877,24 @@ Panes are spread out as evenly as possible over the window in both rows and
columns.
.El
.Pp
In addition,
.Ic select-layout
may be used to apply a previously used layout - the
.Ic list-windows
command displays the layout of each window in a form suitable for use with
.Ic select-layout .
For example:
.Bd -literal -offset indent
$ tmux list-windows
0: ksh [159x48]
layout: bb62,159x48,0,0{79x48,0,0,79x48,80,0}
$ tmux select-layout bb62,159x48,0,0{79x48,0,0,79x48,80,0}
.Ed
.Nm
automatically adjusts the size of the layout for the current window size.
Note that a layout cannot be applied to a window with more panes than that
from which the layout was originally defined.
.Pp
Commands related to windows and panes are as follows:
.Bl -tag -width Ds
.It Xo Ic break-pane
@ -1224,7 +1242,7 @@ or downward (numerically higher).
Choose a specific layout for a window.
If
.Ar layout-name
is not given, the last layout used (if any) is reapplied.
is not given, the last preset layout used (if any) is reapplied.
.It Xo Ic select-pane
.Op Fl DLRU
.Op Fl t Ar target-pane

9
tmux.h
View File

@ -1,4 +1,4 @@
/* $Id: tmux.h,v 1.567 2010-07-02 02:52:13 tcunha Exp $ */
/* $Id: tmux.h,v 1.568 2010-07-02 02:54:52 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -1849,9 +1849,11 @@ struct window_pane *window_pane_find_left(struct window_pane *);
struct window_pane *window_pane_find_right(struct window_pane *);
/* layout.c */
u_int layout_count_cells(struct layout_cell *);
struct layout_cell *layout_create_cell(struct layout_cell *);
void layout_free_cell(struct layout_cell *);
void layout_print_cell(struct layout_cell *, const char *, u_int);
void layout_destroy_cell(struct layout_cell *, struct layout_cell **);
void layout_set_size(
struct layout_cell *, u_int, u_int, u_int, u_int);
void layout_make_leaf(
@ -1872,6 +1874,10 @@ struct layout_cell *layout_split_pane(
struct window_pane *, enum layout_type, int);
void layout_close_pane(struct window_pane *);
/* layout-custom.c */
char *layout_dump(struct window *);
int layout_parse(struct window *, const char *);
/* layout-set.c */
const char *layout_set_name(u_int);
int layout_set_lookup(const char *);
@ -1882,6 +1888,7 @@ void layout_set_active_changed(struct window *);
/* layout-string.c */
struct layout_cell *layout_find_string(struct window *, const char *);
struct layout_cell *layout_find_bottomright(struct layout_cell *);
/* window-clock.c */
extern const struct window_mode window_clock_mode;