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170 lines
4.8 KiB
C
170 lines
4.8 KiB
C
/* $Id$ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Figure out the pane position based on a description. Fairly simple right
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* now, just understands a set of strings: left, right, top, bottom, top-left
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* top-right, bottom-left, bottom-right.
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*/
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struct layout_cell *layout_find_top(struct layout_cell *);
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struct layout_cell *layout_find_bottom(struct layout_cell *);
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struct layout_cell *layout_find_left(struct layout_cell *);
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struct layout_cell *layout_find_right(struct layout_cell *);
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struct layout_cell *layout_find_topleft(struct layout_cell *);
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struct layout_cell *layout_find_topright(struct layout_cell *);
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struct layout_cell *layout_find_bottomleft(struct layout_cell *);
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struct layout_cell *layout_find_bottomright(struct layout_cell *);
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/* Find the cell; returns NULL if string not understood. */
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struct layout_cell *
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layout_find_string(struct window *w, const char *s)
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{
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struct layout_cell *lc;
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lc = NULL;
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if (strcasecmp(s, "top") == 0)
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lc = layout_find_top(w->layout_root);
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else if (strcasecmp(s, "bottom") == 0)
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lc = layout_find_bottom(w->layout_root);
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else if (strcasecmp(s, "left") == 0)
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lc = layout_find_left(w->layout_root);
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else if (strcasecmp(s, "right") == 0)
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lc = layout_find_right(w->layout_root);
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else if (strcasecmp(s, "top-left") == 0)
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lc = layout_find_topleft(w->layout_root);
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else if (strcasecmp(s, "top-right") == 0)
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lc = layout_find_topright(w->layout_root);
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else if (strcasecmp(s, "bottom-left") == 0)
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lc = layout_find_bottomleft(w->layout_root);
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else if (strcasecmp(s, "bottom-right") == 0)
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lc = layout_find_bottomright(w->layout_root);
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if (lc == NULL || lc->type != LAYOUT_WINDOWPANE)
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return (NULL);
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return (lc);
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}
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/*
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* Find the top cell. Because splits in the same direction are stored as a
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* list, this is just the first in the list. Return NULL if no topmost cell.
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* For an unnested cell (not split), the top cell is always itself.
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*/
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struct layout_cell *
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layout_find_top(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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else if (lc->type == LAYOUT_TOPBOTTOM)
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return (TAILQ_FIRST(&lc->cells));
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return (NULL);
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}
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/*
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* Find the bottom cell. Similarly to the top cell, this is just the last in
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* the list.
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*/
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struct layout_cell *
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layout_find_bottom(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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else if (lc->type == LAYOUT_TOPBOTTOM)
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return (TAILQ_LAST(&lc->cells, layout_cells));
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return (NULL);
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}
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/* Find the left cell. */
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struct layout_cell *
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layout_find_left(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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else if (lc->type == LAYOUT_LEFTRIGHT)
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return (TAILQ_FIRST(&lc->cells));
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return (NULL);
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}
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/* Find the right cell. */
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struct layout_cell *
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layout_find_right(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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else if (lc->type == LAYOUT_LEFTRIGHT)
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return (TAILQ_LAST(&lc->cells, layout_cells));
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return (NULL);
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}
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/*
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* Find the top-left cell. This means recursing until there are no more moves
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* to be made.
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*/
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struct layout_cell *
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layout_find_topleft(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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lc = TAILQ_FIRST(&lc->cells);
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return (layout_find_topleft(lc));
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}
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/* Find the top-right cell. */
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struct layout_cell *
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layout_find_topright(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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if (lc->type == LAYOUT_LEFTRIGHT)
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lc = TAILQ_LAST(&lc->cells, layout_cells);
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else
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lc = TAILQ_FIRST(&lc->cells);
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return (layout_find_topright(lc));
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}
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/* Find the bottom-left cell. */
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struct layout_cell *
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layout_find_bottomleft(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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if (lc->type == LAYOUT_LEFTRIGHT)
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lc = TAILQ_FIRST(&lc->cells);
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else
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lc = TAILQ_LAST(&lc->cells, layout_cells);
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return (layout_find_bottomleft(lc));
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}
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/* Find the bottom-right cell. */
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struct layout_cell *
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layout_find_bottomright(struct layout_cell *lc)
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{
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if (lc->type == LAYOUT_WINDOWPANE)
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return (lc);
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lc = TAILQ_LAST(&lc->cells, layout_cells);
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return (layout_find_bottomright(lc));
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}
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