From 35876eaab991efc7759802f184cdd54663ea8a94 Mon Sep 17 00:00:00 2001 From: Nicholas Marriott Date: Mon, 1 Jun 2009 22:58:49 +0000 Subject: Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti --- layout.c | 373 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 373 insertions(+) create mode 100644 layout.c (limited to 'layout.c') diff --git a/layout.c b/layout.c new file mode 100644 index 00000000..1ae946e5 --- /dev/null +++ b/layout.c @@ -0,0 +1,373 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2009 Nicholas Marriott + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include + +#include + +#include "tmux.h" + +/* + * Each layout has two functions, _refresh to relayout the panes and _resize to + * resize a single pane. + * + * Second argument (int) to _refresh is 1 if the only change has been that the + * active pane has changed. If 0 then panes, active pane or both may have + * changed. + */ + +void layout_active_only_refresh(struct window *, int); +void layout_even_h_refresh(struct window *, int); +void layout_even_v_refresh(struct window *, int); +void layout_main_h_refresh(struct window *, int); +void layout_main_v_refresh(struct window *, int); + +const struct { + const char *name; + void (*refresh)(struct window *, int); + void (*resize)(struct window_pane *, int); +} layouts[] = { + { "manual-vertical", layout_manual_v_refresh, layout_manual_v_resize }, + { "active-only", layout_active_only_refresh, NULL }, + { "even-horizontal", layout_even_h_refresh, NULL }, + { "even-vertical", layout_even_v_refresh, NULL }, + { "main-horizontal", layout_main_h_refresh, NULL }, + { "main-vertical", layout_main_v_refresh, NULL }, +}; + +const char * +layout_name(struct window *w) +{ + return (layouts[w->layout].name); +} + +int +layout_lookup(const char *name) +{ + u_int i; + int matched = -1; + + for (i = 0; i < nitems(layouts); i++) { + if (strncmp(layouts[i].name, name, strlen(name)) == 0) { + if (matched != -1) /* ambiguous */ + return (-1); + matched = i; + } + } + + return (matched); +} + +int +layout_select(struct window *w, u_int layout) +{ + if (layout > nitems(layouts) - 1 || layout == w->layout) + return (-1); + w->layout = layout; + + layout_refresh(w, 0); + return (0); +} + +void +layout_next(struct window *w) +{ + w->layout++; + if (w->layout > nitems(layouts) - 1) + w->layout = 0; + layout_refresh(w, 0); +} + +void +layout_previous(struct window *w) +{ + if (w->layout == 0) + w->layout = nitems(layouts) - 1; + else + w->layout--; + layout_refresh(w, 0); +} + +void +layout_refresh(struct window *w, int active_only) +{ + layouts[w->layout].refresh(w, active_only); + server_redraw_window(w); +} + +int +layout_resize(struct window_pane *wp, int adjust) +{ + struct window *w = wp->window; + + if (layouts[w->layout].resize == NULL) + return (-1); + layouts[w->layout].resize(wp, adjust); + return (0); +} + +void +layout_active_only_refresh(struct window *w, unused int active_only) +{ + struct window_pane *wp; + + TAILQ_FOREACH(wp, &w->panes, entry) { + if (wp == w->active) { + wp->flags &= ~PANE_HIDDEN; + wp->xoff = wp->yoff = 0; + window_pane_resize(wp, w->sx, w->sy); + } else + wp->flags |= PANE_HIDDEN; + } +} + +void +layout_even_h_refresh(struct window *w, int active_only) +{ + struct window_pane *wp; + u_int i, n, width, xoff; + + if (active_only) + return; + + /* Get number of panes. */ + n = window_count_panes(w); + if (n == 0) + return; + + /* How many can we fit? */ + if (w->sx / n < PANE_MINIMUM) { + width = PANE_MINIMUM; + n = w->sx / PANE_MINIMUM; + } else + width = w->sx / n; + + /* Fit the panes. */ + i = xoff = 0; + TAILQ_FOREACH(wp, &w->panes, entry) { + if (i > n) { + wp->flags |= PANE_HIDDEN; + continue; + } + wp->flags &= ~PANE_HIDDEN; + + wp->xoff = xoff; + wp->yoff = 0; + if (i != n - 1) + window_pane_resize(wp, width - 1, w->sy); + else + window_pane_resize(wp, width, w->sy); + + i++; + xoff += width; + } + + /* Any space left? */ + while (xoff++ < w->sx) { + wp = TAILQ_LAST(&w->panes, window_panes); + window_pane_resize(wp, wp->sx + 1, wp->sy); + } +} + +void +layout_even_v_refresh(struct window *w, int active_only) +{ + struct window_pane *wp; + u_int i, n, height, yoff; + + if (active_only) + return; + + /* Get number of panes. */ + n = window_count_panes(w); + if (n == 0) + return; + + /* How many can we fit? */ + if (w->sy / n < PANE_MINIMUM) { + height = PANE_MINIMUM; + n = w->sy / PANE_MINIMUM; + } else + height = w->sy / n; + + /* Fit the panes. */ + i = yoff = 0; + TAILQ_FOREACH(wp, &w->panes, entry) { + if (i > n) { + wp->flags |= PANE_HIDDEN; + continue; + } + wp->flags &= ~PANE_HIDDEN; + + wp->xoff = 0; + wp->yoff = yoff; + if (i != n - 1) + window_pane_resize(wp, w->sx, height - 1); + else + window_pane_resize(wp, w->sx, height); + + i++; + yoff += height; + } + + /* Any space left? */ + while (yoff++ < w->sy) { + wp = TAILQ_LAST(&w->panes, window_panes); + window_pane_resize(wp, wp->sx, wp->sy + 1); + } +} + +void +layout_main_v_refresh(struct window *w, int active_only) +{ + struct window_pane *wp; + u_int i, n, mainwidth, height, yoff; + + if (active_only) + return; + + /* Get number of panes. */ + n = window_count_panes(w); + if (n == 0) + return; + + /* Get the main pane width and add one for separator line. */ + mainwidth = options_get_number(&w->options, "main-pane-width") + 1; + + /* Need >1 pane and minimum columns; if fewer, display active only. */ + if (n == 1 || w->sx < mainwidth + PANE_MINIMUM) { + layout_active_only_refresh(w, active_only); + return; + } + n--; + + /* How many can we fit, not including first? */ + if (w->sy / n < PANE_MINIMUM) { + height = PANE_MINIMUM; + n = w->sy / PANE_MINIMUM; + } else + height = w->sy / n; + + /* Fit the panes. */ + i = yoff = 0; + TAILQ_FOREACH(wp, &w->panes, entry) { + if (wp == TAILQ_FIRST(&w->panes)) { + wp->xoff = 0; + wp->yoff = 0; + window_pane_resize(wp, mainwidth - 1, w->sy); + wp->flags &= ~PANE_HIDDEN; + continue; + } + + if (i > n) { + wp->flags |= PANE_HIDDEN; + continue; + } + wp->flags &= ~PANE_HIDDEN; + + wp->xoff = mainwidth; + wp->yoff = yoff; + if (i != n - 1) + window_pane_resize(wp, w->sx - mainwidth, height - 1); + else + window_pane_resize(wp, w->sx - mainwidth, height); + + i++; + yoff += height; + } + + /* Any space left? */ + while (yoff++ < w->sy) { + wp = TAILQ_LAST(&w->panes, window_panes); + while (wp != NULL && wp == TAILQ_FIRST(&w->panes)) + wp = TAILQ_PREV(wp, window_panes, entry); + if (wp == NULL) + break; + window_pane_resize(wp, wp->sx, wp->sy + 1); + } +} + +void +layout_main_h_refresh(struct window *w, int active_only) +{ + struct window_pane *wp; + u_int i, n, mainheight, width, xoff; + + if (active_only) + return; + + /* Get number of panes. */ + n = window_count_panes(w); + if (n == 0) + return; + + /* Get the main pane height and add one for separator line. */ + mainheight = options_get_number(&w->options, "main-pane-height") + 1; + + /* Need >1 pane and minimum rows; if fewer, display active only. */ + if (n == 1 || w->sy < mainheight + PANE_MINIMUM) { + layout_active_only_refresh(w, active_only); + return; + } + n--; + + /* How many can we fit, not including first? */ + if (w->sx / n < PANE_MINIMUM) { + width = PANE_MINIMUM; + n = w->sx / PANE_MINIMUM; + } else + width = w->sx / n; + + /* Fit the panes. */ + i = xoff = 0; + TAILQ_FOREACH(wp, &w->panes, entry) { + if (wp == TAILQ_FIRST(&w->panes)) { + wp->xoff = 0; + wp->yoff = 0; + window_pane_resize(wp, w->sx, mainheight - 1); + wp->flags &= ~PANE_HIDDEN; + continue; + } + + if (i > n) { + wp->flags |= PANE_HIDDEN; + continue; + } + wp->flags &= ~PANE_HIDDEN; + + wp->xoff = xoff; + wp->yoff = mainheight; + if (i != n - 1) + window_pane_resize(wp, width - 1, w->sy - mainheight); + else + window_pane_resize(wp, width - 1, w->sy - mainheight); + + i++; + xoff += width; + } + + /* Any space left? */ + while (xoff++ < w->sx + 1) { + wp = TAILQ_LAST(&w->panes, window_panes); + while (wp != NULL && wp == TAILQ_FIRST(&w->panes)) + wp = TAILQ_PREV(wp, window_panes, entry); + if (wp == NULL) + break; + window_pane_resize(wp, wp->sx + 1, wp->sy); + } +} -- cgit v1.2.3