cmd-resize-window.c

   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, 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;
  57         int                      xpixel = -1, ypixel = -1;
  58
  59         if (args_count(args) == 0)
  60                 adjust = 1;
  61         else {
  62                 adjust = strtonum(args_string(args, 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         w->manual_sx = sx;
 112         w->manual_sy = sy;
 113         recalculate_size(w, 1);
 114
 115         return (CMD_RETURN_NORMAL);
 116 }