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Annotation of embedaddon/tmux/cmd-swap-pane.c, revision 1.1

1.1     ! misho       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:  * Swap two panes.
        !            27:  */
        !            28: 
        !            29: static enum cmd_retval cmd_swap_pane_exec(struct cmd *, struct cmdq_item *);
        !            30: 
        !            31: const struct cmd_entry cmd_swap_pane_entry = {
        !            32:        .name = "swap-pane",
        !            33:        .alias = "swapp",
        !            34: 
        !            35:        .args = { "dDs:t:U", 0, 0 },
        !            36:        .usage = "[-dDU] " CMD_SRCDST_PANE_USAGE,
        !            37: 
        !            38:        .sflag = CMD_PANE_MARKED,
        !            39:        .tflag = CMD_PANE,
        !            40: 
        !            41:        .flags = 0,
        !            42:        .exec = cmd_swap_pane_exec
        !            43: };
        !            44: 
        !            45: static enum cmd_retval
        !            46: cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
        !            47: {
        !            48:        struct window           *src_w, *dst_w;
        !            49:        struct window_pane      *tmp_wp, *src_wp, *dst_wp;
        !            50:        struct layout_cell      *src_lc, *dst_lc;
        !            51:        u_int                    sx, sy, xoff, yoff;
        !            52: 
        !            53:        dst_w = item->state.tflag.wl->window;
        !            54:        dst_wp = item->state.tflag.wp;
        !            55:        src_w = item->state.sflag.wl->window;
        !            56:        src_wp = item->state.sflag.wp;
        !            57:        server_unzoom_window(dst_w);
        !            58: 
        !            59:        if (args_has(self->args, 'D')) {
        !            60:                src_w = dst_w;
        !            61:                src_wp = TAILQ_NEXT(dst_wp, entry);
        !            62:                if (src_wp == NULL)
        !            63:                        src_wp = TAILQ_FIRST(&dst_w->panes);
        !            64:        } else if (args_has(self->args, 'U')) {
        !            65:                src_w = dst_w;
        !            66:                src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
        !            67:                if (src_wp == NULL)
        !            68:                        src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
        !            69:        }
        !            70:        server_unzoom_window(src_w);
        !            71: 
        !            72:        if (src_wp == dst_wp)
        !            73:                return (CMD_RETURN_NORMAL);
        !            74: 
        !            75:        tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
        !            76:        TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
        !            77:        TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
        !            78:        if (tmp_wp == src_wp)
        !            79:                tmp_wp = dst_wp;
        !            80:        if (tmp_wp == NULL)
        !            81:                TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
        !            82:        else
        !            83:                TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
        !            84: 
        !            85:        src_lc = src_wp->layout_cell;
        !            86:        dst_lc = dst_wp->layout_cell;
        !            87:        src_lc->wp = dst_wp;
        !            88:        dst_wp->layout_cell = src_lc;
        !            89:        dst_lc->wp = src_wp;
        !            90:        src_wp->layout_cell = dst_lc;
        !            91: 
        !            92:        src_wp->window = dst_w;
        !            93:        dst_wp->window = src_w;
        !            94: 
        !            95:        sx = src_wp->sx; sy = src_wp->sy;
        !            96:        xoff = src_wp->xoff; yoff = src_wp->yoff;
        !            97:        src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
        !            98:        window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
        !            99:        dst_wp->xoff = xoff; dst_wp->yoff = yoff;
        !           100:        window_pane_resize(dst_wp, sx, sy);
        !           101: 
        !           102:        if (!args_has(self->args, 'd')) {
        !           103:                if (src_w != dst_w) {
        !           104:                        window_set_active_pane(src_w, dst_wp);
        !           105:                        window_set_active_pane(dst_w, src_wp);
        !           106:                } else {
        !           107:                        tmp_wp = dst_wp;
        !           108:                        if (!window_pane_visible(tmp_wp))
        !           109:                                tmp_wp = src_wp;
        !           110:                        window_set_active_pane(src_w, tmp_wp);
        !           111:                }
        !           112:        } else {
        !           113:                if (src_w->active == src_wp)
        !           114:                        window_set_active_pane(src_w, dst_wp);
        !           115:                if (dst_w->active == dst_wp)
        !           116:                        window_set_active_pane(dst_w, src_wp);
        !           117:        }
        !           118:        if (src_w != dst_w) {
        !           119:                if (src_w->last == src_wp)
        !           120:                        src_w->last = NULL;
        !           121:                if (dst_w->last == dst_wp)
        !           122:                        dst_w->last = NULL;
        !           123:        }
        !           124:        server_redraw_window(src_w);
        !           125:        server_redraw_window(dst_w);
        !           126: 
        !           127:        return (CMD_RETURN_NORMAL);
        !           128: }