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tmux 2.4

    1: /* $OpenBSD$ */
    2: 
    3: /*
    4:  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
    5:  *
    6:  * Permission to use, copy, modify, and distribute this software for any
    7:  * purpose with or without fee is hereby granted, provided that the above
    8:  * copyright notice and this permission notice appear in all copies.
    9:  *
   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
   15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
   16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   17:  */
   18: 
   19: #include <sys/types.h>
   20: 
   21: #include <stdlib.h>
   22: 
   23: #include "tmux.h"
   24: 
   25: /*
   26:  * Increase or decrease pane size.
   27:  */
   28: 
   29: static enum cmd_retval	cmd_resize_pane_exec(struct cmd *, struct cmdq_item *);
   30: 
   31: static void	cmd_resize_pane_mouse_update(struct client *,
   32: 		    struct mouse_event *);
   33: 
   34: const struct cmd_entry cmd_resize_pane_entry = {
   35: 	.name = "resize-pane",
   36: 	.alias = "resizep",
   37: 
   38: 	.args = { "DLMRt:Ux:y:Z", 0, 1 },
   39: 	.usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "
   40: 		 "[adjustment]",
   41: 
   42: 	.tflag = CMD_PANE,
   43: 
   44: 	.flags = CMD_AFTERHOOK,
   45: 	.exec = cmd_resize_pane_exec
   46: };
   47: 
   48: static enum cmd_retval
   49: cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
   50: {
   51: 	struct args		*args = self->args;
   52: 	struct window_pane	*wp = item->state.tflag.wp;
   53: 	struct winlink		*wl = item->state.tflag.wl;
   54: 	struct window		*w = wl->window;
   55: 	struct client		*c = item->client;
   56: 	struct session		*s = item->state.tflag.s;
   57: 	const char	       	*errstr;
   58: 	char			*cause;
   59: 	u_int			 adjust;
   60: 	int			 x, y;
   61: 
   62: 	if (args_has(args, 'M')) {
   63: 		if (cmd_mouse_window(&item->mouse, &s) == NULL)
   64: 			return (CMD_RETURN_NORMAL);
   65: 		if (c == NULL || c->session != s)
   66: 			return (CMD_RETURN_NORMAL);
   67: 		c->tty.mouse_drag_update = cmd_resize_pane_mouse_update;
   68: 		cmd_resize_pane_mouse_update(c, &item->mouse);
   69: 		return (CMD_RETURN_NORMAL);
   70: 	}
   71: 
   72: 	if (args_has(args, 'Z')) {
   73: 		if (w->flags & WINDOW_ZOOMED)
   74: 			window_unzoom(w);
   75: 		else
   76: 			window_zoom(wp);
   77: 		server_redraw_window(w);
   78: 		server_status_window(w);
   79: 		return (CMD_RETURN_NORMAL);
   80: 	}
   81: 	server_unzoom_window(w);
   82: 
   83: 	if (args->argc == 0)
   84: 		adjust = 1;
   85: 	else {
   86: 		adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
   87: 		if (errstr != NULL) {
   88: 			cmdq_error(item, "adjustment %s", errstr);
   89: 			return (CMD_RETURN_ERROR);
   90: 		}
   91: 	}
   92: 
   93: 	if (args_has(self->args, 'x')) {
   94: 		x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,
   95: 		    &cause);
   96: 		if (cause != NULL) {
   97: 			cmdq_error(item, "width %s", cause);
   98: 			free(cause);
   99: 			return (CMD_RETURN_ERROR);
  100: 		}
  101: 		layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);
  102: 	}
  103: 	if (args_has(self->args, 'y')) {
  104: 		y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,
  105: 		    &cause);
  106: 		if (cause != NULL) {
  107: 			cmdq_error(item, "height %s", cause);
  108: 			free(cause);
  109: 			return (CMD_RETURN_ERROR);
  110: 		}
  111: 		layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);
  112: 	}
  113: 
  114: 	if (args_has(self->args, 'L'))
  115: 		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);
  116: 	else if (args_has(self->args, 'R'))
  117: 		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);
  118: 	else if (args_has(self->args, 'U'))
  119: 		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);
  120: 	else if (args_has(self->args, 'D'))
  121: 		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1);
  122: 	server_redraw_window(wl->window);
  123: 
  124: 	return (CMD_RETURN_NORMAL);
  125: }
  126: 
  127: static void
  128: cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
  129: {
  130: 	struct winlink		*wl;
  131: 	struct window_pane	*wp;
  132: 	int			 found;
  133: 	u_int			 y, ly;
  134: 
  135: 	wl = cmd_mouse_window(m, NULL);
  136: 	if (wl == NULL) {
  137: 		c->tty.mouse_drag_update = NULL;
  138: 		return;
  139: 	}
  140: 
  141: 	y = m->y;
  142: 	if (m->statusat == 0 && y > 0)
  143: 		y--;
  144: 	else if (m->statusat > 0 && y >= (u_int)m->statusat)
  145: 		y = m->statusat - 1;
  146: 	ly = m->ly;
  147: 	if (m->statusat == 0 && ly > 0)
  148: 		ly--;
  149: 	else if (m->statusat > 0 && ly >= (u_int)m->statusat)
  150: 		ly = m->statusat - 1;
  151: 
  152: 	found = 0;
  153: 	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
  154: 		if (!window_pane_visible(wp))
  155: 			continue;
  156: 
  157: 		if (wp->xoff + wp->sx == m->lx &&
  158: 		    wp->yoff <= 1 + ly &&
  159: 		    wp->yoff + wp->sy >= ly) {
  160: 			layout_resize_pane(wp, LAYOUT_LEFTRIGHT, m->x - m->lx, 0);
  161: 			found = 1;
  162: 		}
  163: 		if (wp->yoff + wp->sy == ly &&
  164: 		    wp->xoff <= 1 + m->lx &&
  165: 		    wp->xoff + wp->sx >= m->lx) {
  166: 			layout_resize_pane(wp, LAYOUT_TOPBOTTOM, y - ly, 0);
  167: 			found = 1;
  168: 		}
  169: 	}
  170: 	if (found)
  171: 		server_redraw_window(wl->window);
  172: 	else
  173: 		c->tty.mouse_drag_update = NULL;
  174: }