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Annotation of src/usr.bin/tmux/cmd-resize-window.c, Revision 1.1

1.1     ! nicm        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
        !            47: cmd_resize_window_exec(struct cmd *self, struct cmdq_item *item)
        !            48: {
        !            49:        struct args             *args = self->args;
        !            50:        struct winlink          *wl = item->target.wl;
        !            51:        struct window           *w = wl->window;
        !            52:        struct session          *s = item->target.s;
        !            53:        const char              *errstr;
        !            54:        char                    *cause;
        !            55:        u_int                    adjust, sx, sy;
        !            56:
        !            57:        if (args->argc == 0)
        !            58:                adjust = 1;
        !            59:        else {
        !            60:                adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
        !            61:                if (errstr != NULL) {
        !            62:                        cmdq_error(item, "adjustment %s", errstr);
        !            63:                        return (CMD_RETURN_ERROR);
        !            64:                }
        !            65:        }
        !            66:
        !            67:        sx = w->sx;
        !            68:        sy = w->sy;
        !            69:
        !            70:        if (args_has(args, 'x')) {
        !            71:                sx = args_strtonum(args, 'x', WINDOW_MINIMUM, WINDOW_MAXIMUM,
        !            72:                    &cause);
        !            73:                if (cause != NULL) {
        !            74:                        cmdq_error(item, "width %s", cause);
        !            75:                        free(cause);
        !            76:                        return (CMD_RETURN_ERROR);
        !            77:                }
        !            78:        }
        !            79:        if (args_has(args, 'y')) {
        !            80:                sy = args_strtonum(args, 'y', WINDOW_MINIMUM, WINDOW_MAXIMUM,
        !            81:                    &cause);
        !            82:                if (cause != NULL) {
        !            83:                        cmdq_error(item, "height %s", cause);
        !            84:                        free(cause);
        !            85:                        return (CMD_RETURN_ERROR);
        !            86:                }
        !            87:        }
        !            88:
        !            89:        if (args_has(args, 'L')) {
        !            90:                if (sx >= adjust)
        !            91:                        sx -= adjust;
        !            92:        } else if (args_has(args, 'R'))
        !            93:                sx += adjust;
        !            94:        else if (args_has(args, 'U')) {
        !            95:                if (sy >= adjust)
        !            96:                        sy -= adjust;
        !            97:        } else if (args_has(args, 'D'))
        !            98:                sy += adjust;
        !            99:
        !           100:        if (args_has(args, 'A'))
        !           101:                default_window_size(s, w, &sx, &sy, WINDOW_SIZE_LARGEST);
        !           102:        else if (args_has(args, 'a'))
        !           103:                default_window_size(s, w, &sx, &sy, WINDOW_SIZE_SMALLEST);
        !           104:
        !           105:        options_set_number(w->options, "window-size", WINDOW_SIZE_MANUAL);
        !           106:        resize_window(w, sx, sy);
        !           107:
        !           108:        return (CMD_RETURN_NORMAL);
        !           109: }