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cmd-resize-window.c revision 1.5 
      1 /* $OpenBSD$ */
      2 
      3 /*
      4  * Copyright (c) 2018 Nicholas Marriott <nicholas.marriott (at) 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 window size.
     27  */
     28 
     29 static enum cmd_retval	cmd_resize_window_exec(struct cmd *,
     30 			    struct cmdq_item *);
     31 
     32 const struct cmd_entry cmd_resize_window_entry = {
     33 	.name = "resize-window",
     34 	.alias = "resizew",
     35 
     36 	.args = { "aADLRt:Ux:y:", 0, 1, NULL },
     37 	.usage = "[-aADLRU] [-x width] [-y height] " CMD_TARGET_WINDOW_USAGE " "
     38 		 "[adjustment]",
     39 
     40 	.target = { 't', CMD_FIND_WINDOW, 0 },
     41 
     42 	.flags = CMD_AFTERHOOK,
     43 	.exec = cmd_resize_window_exec
     44 };
     45 
     46 static enum cmd_retval
     47 cmd_resize_window_exec(struct cmd *self, struct cmdq_item *item)
     48 {
     49 	struct args		*args = cmd_get_args(self);
     50 	struct cmd_find_state	*target = cmdq_get_target(item);
     51 	struct winlink		*wl = target->wl;
     52 	struct window		*w = wl->window;
     53 	struct session		*s = target->s;
     54 	const char	       	*errstr;
     55 	char			*cause;
     56 	u_int			 adjust, sx, sy, xpixel = 0, ypixel = 0;
     57 
     58 	if (args_count(args) == 0)
     59 		adjust = 1;
     60 	else {
     61 		adjust = strtonum(args_string(args, 0), 1, INT_MAX, &errstr);
     62 		if (errstr != NULL) {
     63 			cmdq_error(item, "adjustment %s", errstr);
     64 			return (CMD_RETURN_ERROR);
     65 		}
     66 	}
     67 
     68 	sx = w->sx;
     69 	sy = w->sy;
     70 
     71 	if (args_has(args, 'x')) {
     72 		sx = args_strtonum(args, 'x', WINDOW_MINIMUM, WINDOW_MAXIMUM,
     73 		    &cause);
     74 		if (cause != NULL) {
     75 			cmdq_error(item, "width %s", cause);
     76 			free(cause);
     77 			return (CMD_RETURN_ERROR);
     78 		}
     79 	}
     80 	if (args_has(args, 'y')) {
     81 		sy = args_strtonum(args, 'y', WINDOW_MINIMUM, WINDOW_MAXIMUM,
     82 		    &cause);
     83 		if (cause != NULL) {
     84 			cmdq_error(item, "height %s", cause);
     85 			free(cause);
     86 			return (CMD_RETURN_ERROR);
     87 		}
     88 	}
     89 
     90 	if (args_has(args, 'L')) {
     91 		if (sx >= adjust)
     92 			sx -= adjust;
     93 	} else if (args_has(args, 'R'))
     94 		sx += adjust;
     95 	else if (args_has(args, 'U')) {
     96 		if (sy >= adjust)
     97 			sy -= adjust;
     98 	} else if (args_has(args, 'D'))
     99 		sy += adjust;
    100 
    101 	if (args_has(args, 'A')) {
    102 		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
    103 		    WINDOW_SIZE_LARGEST);
    104 	} else if (args_has(args, 'a')) {
    105 		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
    106 		    WINDOW_SIZE_SMALLEST);
    107 	}
    108 
    109 	options_set_number(w->options, "window-size", WINDOW_SIZE_MANUAL);
    110 	w->manual_sx = sx;
    111 	w->manual_sy = sy;
    112 	recalculate_size(w, 1);
    113 
    114 	return (CMD_RETURN_NORMAL);
    115 }
    116