1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2018 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 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 },
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
cmd_resize_window_exec(struct cmd * self,struct cmdq_item * item)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;
57 	int			 xpixel = -1, ypixel = -1;
58 
59 	if (args->argc == 0)
60 		adjust = 1;
61 	else {
62 		adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
63 		if (errstr != NULL) {
64 			cmdq_error(item, "adjustment %s", errstr);
65 			return (CMD_RETURN_ERROR);
66 		}
67 	}
68 
69 	sx = w->sx;
70 	sy = w->sy;
71 
72 	if (args_has(args, 'x')) {
73 		sx = args_strtonum(args, 'x', WINDOW_MINIMUM, WINDOW_MAXIMUM,
74 		    &cause);
75 		if (cause != NULL) {
76 			cmdq_error(item, "width %s", cause);
77 			free(cause);
78 			return (CMD_RETURN_ERROR);
79 		}
80 	}
81 	if (args_has(args, 'y')) {
82 		sy = args_strtonum(args, 'y', WINDOW_MINIMUM, WINDOW_MAXIMUM,
83 		    &cause);
84 		if (cause != NULL) {
85 			cmdq_error(item, "height %s", cause);
86 			free(cause);
87 			return (CMD_RETURN_ERROR);
88 		}
89 	}
90 
91 	if (args_has(args, 'L')) {
92 		if (sx >= adjust)
93 			sx -= adjust;
94 	} else if (args_has(args, 'R'))
95 		sx += adjust;
96 	else if (args_has(args, 'U')) {
97 		if (sy >= adjust)
98 			sy -= adjust;
99 	} else if (args_has(args, 'D'))
100 		sy += adjust;
101 
102 	if (args_has(args, 'A')) {
103 		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
104 		    WINDOW_SIZE_LARGEST);
105 	} else if (args_has(args, 'a')) {
106 		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
107 		    WINDOW_SIZE_SMALLEST);
108 	}
109 
110 	options_set_number(w->options, "window-size", WINDOW_SIZE_MANUAL);
111 	resize_window(w, sx, sy, xpixel, ypixel);
112 
113 	return (CMD_RETURN_NORMAL);
114 }
115