layout.c - tmux - Rivoreo Source Code Repositories

 /* $Id: layout.c,v 1.7 2009-05-16 11:48:47 nicm Exp $ */

 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
  *
  * 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 <sys/types.h>

 #include <string.h>

 #include "tmux.h"

 /*
  * Layout functions: second argument (int) is 1 if definitely the /only/ change
  * has been the active pane has changed. If 0 then panes, active pane or both
  * may have changed.
  */
 void	layout_manual(struct window *, int);
 void	layout_active_only(struct window *, int);
 void	layout_even_horizontal(struct window *, int);
 void	layout_even_vertical(struct window *, int);
 void	layout_left_vertical(struct window *, int);

 const struct {
 	const char	*name;
 	void		(*fn)(struct window *, int);
 } layouts[] = {
 	{ "manual", layout_manual },
 	{ "active-only", layout_active_only },
 	{ "even-horizontal", layout_even_horizontal },
 	{ "even-vertical", layout_even_vertical },
 	{ "left-vertical", layout_left_vertical },
 };

 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;

 	if (w->layout == 0) {
 		/* XXX Special-case manual. */
 		window_fit_panes(w);
 		window_update_panes(w);
 	}
 	layout_refresh(w, 0);
 	return (0);
 }

 void
 layout_next(struct window *w)
 {
 	w->layout++;
 	if (w->layout > nitems(layouts) - 1) {
 		w->layout = 0;
 		/* XXX Special-case manual. */
 		window_fit_panes(w);
 		window_update_panes(w);
 	}
 	layout_refresh(w, 0);
 }

 void
 layout_previous(struct window *w)
 {
 	if (w->layout == 0)
 		w->layout = nitems(layouts) - 1;
 	else
 		w->layout--;
 	if (w->layout == 0) {
 		/* XXX Special-case manual. */
 		window_fit_panes(w);
 		window_update_panes(w);
 	}
 	layout_refresh(w, 0);
 }

 void
 layout_refresh(struct window *w, unused int active_changed)
 {
 	layouts[w->layout].fn(w, active_changed);
 	server_redraw_window(w);
 }

 void
 layout_manual(unused struct window *w, unused int active_changed)
 {
 }

 void
 layout_active_only(struct window *w, unused int active_changed)
 {
 	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_horizontal(struct window *w, int active_changed)
 {
 	struct window_pane	*wp;
 	u_int			 i, n, width, xoff;

 	if (active_changed)
 		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_vertical(struct window *w, int active_changed)
 {
 	struct window_pane	*wp;
 	u_int			 i, n, height, yoff;

 	if (active_changed)
 		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_left_vertical(struct window *w, int active_changed)
 {
 	struct window_pane	*wp;
 	u_int			 i, n, height, yoff;

 	if (active_changed)
 		return;

 	/* Get number of panes. */
 	n = window_count_panes(w);
 	if (n == 0)
 		return;

 	/* Need >1 pane and minimum columns; if fewer, display active only. */
 	if (n == 1 || w->sx < 82 + PANE_MINIMUM) {
 		layout_active_only(w, active_changed);
 		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, 81, w->sy);
 			wp->flags &= ~PANE_HIDDEN;
 			continue;
 		}

 		if (i > n) {
 			wp->flags |= PANE_HIDDEN;
 			continue;
 		}
 		wp->flags &= ~PANE_HIDDEN;

 		wp->xoff = 82;
 		wp->yoff = yoff;
 		if (i != n - 1)
  			window_pane_resize(wp, w->sx - 82, height - 1);
 		else
  			window_pane_resize(wp, w->sx - 82, 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);
 	}
 }
	/* $Id: layout.c,v 1.7 2009-05-16 11:48:47 nicm Exp $ */

	/*
	* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
	*
	* 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 <sys/types.h>

	#include <string.h>

	#include "tmux.h"

	/*
	* Layout functions: second argument (int) is 1 if definitely the /only/ change
	* has been the active pane has changed. If 0 then panes, active pane or both
	* may have changed.
	*/
	void layout_manual(struct window *, int);
	void layout_active_only(struct window *, int);
	void layout_even_horizontal(struct window *, int);
	void layout_even_vertical(struct window *, int);
	void layout_left_vertical(struct window *, int);

	const struct {
	const char *name;
	void (fn)(struct window , int);
	} layouts[] = {
	{ "manual", layout_manual },
	{ "active-only", layout_active_only },
	{ "even-horizontal", layout_even_horizontal },
	{ "even-vertical", layout_even_vertical },
	{ "left-vertical", layout_left_vertical },
	};

	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;

	if (w->layout == 0) {
	/* XXX Special-case manual. */
	window_fit_panes(w);
	window_update_panes(w);
	}
	layout_refresh(w, 0);
	return (0);
	}

	void
	layout_next(struct window *w)
	{
	w->layout++;
	if (w->layout > nitems(layouts) - 1) {
	w->layout = 0;
	/* XXX Special-case manual. */
	window_fit_panes(w);
	window_update_panes(w);
	}
	layout_refresh(w, 0);
	}

	void
	layout_previous(struct window *w)
	{
	if (w->layout == 0)
	w->layout = nitems(layouts) - 1;
	else
	w->layout--;
	if (w->layout == 0) {
	/* XXX Special-case manual. */
	window_fit_panes(w);
	window_update_panes(w);
	}
	layout_refresh(w, 0);
	}

	void
	layout_refresh(struct window *w, unused int active_changed)
	{
	layouts[w->layout].fn(w, active_changed);
	server_redraw_window(w);
	}

	void
	layout_manual(unused struct window *w, unused int active_changed)
	{
	}

	void
	layout_active_only(struct window *w, unused int active_changed)
	{
	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_horizontal(struct window *w, int active_changed)
	{
	struct window_pane *wp;
	u_int i, n, width, xoff;

	if (active_changed)
	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_vertical(struct window *w, int active_changed)
	{
	struct window_pane *wp;
	u_int i, n, height, yoff;

	if (active_changed)
	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_left_vertical(struct window *w, int active_changed)
	{
	struct window_pane *wp;
	u_int i, n, height, yoff;

	if (active_changed)
	return;

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n == 0)
	return;

	/* Need >1 pane and minimum columns; if fewer, display active only. */
	if (n == 1 \|\| w->sx < 82 + PANE_MINIMUM) {
	layout_active_only(w, active_changed);
	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, 81, w->sy);
	wp->flags &= ~PANE_HIDDEN;
	continue;
	}

	if (i > n) {
	wp->flags \|= PANE_HIDDEN;
	continue;
	}
	wp->flags &= ~PANE_HIDDEN;

	wp->xoff = 82;
	wp->yoff = yoff;
	if (i != n - 1)
	window_pane_resize(wp, w->sx - 82, height - 1);
	else
	window_pane_resize(wp, w->sx - 82, 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);
	}
	}