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Annotation of embedaddon/tmux/cmd-swap-pane.c, revision 1.1.1.1

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: }