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/* $OpenBSD: cmd-resize-pane.c,v 1.49 2021/08/20 19:50:16 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Increase or decrease pane size.
*/
static enum cmd_retval cmd_resize_pane_exec(struct cmd *, struct cmdq_item *);
static void cmd_resize_pane_mouse_update(struct client *,
struct mouse_event *);
const struct cmd_entry cmd_resize_pane_entry = {
.name = "resize-pane",
.alias = "resizep",
.args = { "DLMRTt:Ux:y:Z", 0, 1 },
.usage = "[-DLMRTUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "
"[adjustment]",
.target = { 't', CMD_FIND_PANE, 0 },
.flags = CMD_AFTERHOOK,
.exec = cmd_resize_pane_exec
};
static enum cmd_retval
cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = cmd_get_args(self);
struct cmd_find_state *target = cmdq_get_target(item);
struct key_event *event = cmdq_get_event(item);
struct window_pane *wp = target->wp;
struct winlink *wl = target->wl;
struct window *w = wl->window;
struct client *c = cmdq_get_client(item);
struct session *s = target->s;
const char *errstr;
char *cause;
u_int adjust;
int x, y;
struct grid *gd = wp->base.grid;
if (args_has(args, 'T')) {
if (!TAILQ_EMPTY(&wp->modes))
return (CMD_RETURN_NORMAL);
adjust = screen_size_y(&wp->base) - 1 - wp->base.cy;
if (adjust > gd->hsize)
adjust = gd->hsize;
grid_remove_history(gd, adjust);
wp->base.cy += adjust;
wp->flags |= PANE_REDRAW;
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'M')) {
if (!event->m.valid || cmd_mouse_window(&event->m, &s) == NULL)
return (CMD_RETURN_NORMAL);
if (c == NULL || c->session != s)
return (CMD_RETURN_NORMAL);
c->tty.mouse_drag_update = cmd_resize_pane_mouse_update;
cmd_resize_pane_mouse_update(c, &event->m);
return (CMD_RETURN_NORMAL);
}
if (args_has(args, 'Z')) {
if (w->flags & WINDOW_ZOOMED)
window_unzoom(w);
else
window_zoom(wp);
server_redraw_window(w);
return (CMD_RETURN_NORMAL);
}
server_unzoom_window(w);
if (args_count(args) == 0)
adjust = 1;
else {
adjust = strtonum(args_string(args, 0), 1, INT_MAX,
&errstr);
if (errstr != NULL) {
cmdq_error(item, "adjustment %s", errstr);
return (CMD_RETURN_ERROR);
}
}
if (args_has(args, 'x')) {
x = args_percentage(args, 'x', 0, INT_MAX, w->sx, &cause);
if (cause != NULL) {
cmdq_error(item, "width %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);
}
if (args_has(args, 'y')) {
y = args_percentage(args, 'y', 0, INT_MAX, w->sy, &cause);
if (cause != NULL) {
cmdq_error(item, "height %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);
}
if (args_has(args, 'L'))
layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);
else if (args_has(args, 'R'))
layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);
else if (args_has(args, 'U'))
layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);
else if (args_has(args, 'D'))
layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1);
server_redraw_window(wl->window);
return (CMD_RETURN_NORMAL);
}
static void
cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
{
struct winlink *wl;
struct window *w;
u_int y, ly, x, lx;
static const int offsets[][2] = {
{ 0, 0 }, { 0, 1 }, { 1, 0 }, { 0, -1 }, { -1, 0 },
};
struct layout_cell *cells[nitems(offsets)], *lc;
u_int ncells = 0, i, j, resizes = 0;
enum layout_type type;
wl = cmd_mouse_window(m, NULL);
if (wl == NULL) {
c->tty.mouse_drag_update = NULL;
return;
}
w = wl->window;
y = m->y + m->oy; x = m->x + m->ox;
if (m->statusat == 0 && y >= m->statuslines)
y -= m->statuslines;
else if (m->statusat > 0 && y >= (u_int)m->statusat)
y = m->statusat - 1;
ly = m->ly + m->oy; lx = m->lx + m->ox;
if (m->statusat == 0 && ly >= m->statuslines)
ly -= m->statuslines;
else if (m->statusat > 0 && ly >= (u_int)m->statusat)
ly = m->statusat - 1;
for (i = 0; i < nitems(cells); i++) {
lc = layout_search_by_border(w->layout_root, lx + offsets[i][0],
ly + offsets[i][1]);
if (lc == NULL)
continue;
for (j = 0; j < ncells; j++) {
if (cells[j] == lc) {
lc = NULL;
break;
}
}
if (lc == NULL)
continue;
cells[ncells] = lc;
ncells++;
}
if (ncells == 0)
return;
for (i = 0; i < ncells; i++) {
type = cells[i]->parent->type;
if (y != ly && type == LAYOUT_TOPBOTTOM) {
layout_resize_layout(w, cells[i], type, y - ly, 0);
resizes++;
} else if (x != lx && type == LAYOUT_LEFTRIGHT) {
layout_resize_layout(w, cells[i], type, x - lx, 0);
resizes++;
}
}
if (resizes != 0)
server_redraw_window(w);
}
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