tmux/cmd-resize-pane.c

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/* $OpenBSD$ */
/*
* 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 "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 = { "DLMRt:Ux:y:Z", 0, 1 },
.usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "
"[adjustment]",
.tflag = CMD_PANE,
.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 = self->args;
struct window_pane *wp = item->state.tflag.wp;
struct winlink *wl = item->state.tflag.wl;
struct window *w = wl->window;
struct client *c = item->client;
struct session *s = item->state.tflag.s;
const char *errstr;
char *cause;
u_int adjust;
int x, y;
if (args_has(args, 'M')) {
if (cmd_mouse_window(&item->mouse, &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, &item->mouse);
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);
server_status_window(w);
return (CMD_RETURN_NORMAL);
}
server_unzoom_window(w);
if (args->argc == 0)
adjust = 1;
else {
adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
if (errstr != NULL) {
cmdq_error(item, "adjustment %s", errstr);
return (CMD_RETURN_ERROR);
}
}
if (args_has(self->args, 'x')) {
x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,
&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(self->args, 'y')) {
y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,
&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(self->args, 'L'))
layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);
else if (args_has(self->args, 'R'))
layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);
else if (args_has(self->args, 'U'))
layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);
else if (args_has(self->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_pane *wp;
int found;
u_int y, ly;
wl = cmd_mouse_window(m, NULL);
if (wl == NULL) {
c->tty.mouse_drag_update = NULL;
return;
}
y = m->y;
if (m->statusat == 0 && y > 0)
y--;
else if (m->statusat > 0 && y >= (u_int)m->statusat)
y = m->statusat - 1;
ly = m->ly;
if (m->statusat == 0 && ly > 0)
ly--;
else if (m->statusat > 0 && ly >= (u_int)m->statusat)
ly = m->statusat - 1;
found = 0;
TAILQ_FOREACH(wp, &wl->window->panes, entry) {
if (!window_pane_visible(wp))
continue;
if (wp->xoff + wp->sx == m->lx &&
wp->yoff <= 1 + ly &&
wp->yoff + wp->sy >= ly) {
layout_resize_pane(wp, LAYOUT_LEFTRIGHT, m->x - m->lx, 0);
found = 1;
}
if (wp->yoff + wp->sy == ly &&
wp->xoff <= 1 + m->lx &&
wp->xoff + wp->sx >= m->lx) {
layout_resize_pane(wp, LAYOUT_TOPBOTTOM, y - ly, 0);
found = 1;
}
}
if (found)
server_redraw_window(wl->window);
else
c->tty.mouse_drag_update = NULL;
}