Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tmux/layout-set.c	Lines:	0	269	0.0 %
Date:	2016-12-06	Branches:	0	124	0.0 %


/* $OpenBSD: layout-set.c,v 1.14 2016/01/19 15:59:12 nicm Exp $ */

/*
 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * 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"

/*
 * Set window layouts - predefined methods to arrange windows. These are
 * one-off and generate a layout tree.
 */

void	layout_set_even_h(struct window *);
void	layout_set_even_v(struct window *);
void	layout_set_main_h(struct window *);
void	layout_set_main_v(struct window *);
void	layout_set_tiled(struct window *);

const struct {
	const char	*name;
	void	      	(*arrange)(struct window *);
} layout_sets[] = {
	{ "even-horizontal", layout_set_even_h },
	{ "even-vertical", layout_set_even_v },
	{ "main-horizontal", layout_set_main_h },
	{ "main-vertical", layout_set_main_v },
	{ "tiled", layout_set_tiled },
};

int
layout_set_lookup(const char *name)
{
	u_int	i;
	int	matched = -1;

	for (i = 0; i < nitems(layout_sets); i++) {
		if (strncmp(layout_sets[i].name, name, strlen(name)) == 0) {
			if (matched != -1)	/* ambiguous */
				return (-1);
			matched = i;
		}
	}

	return (matched);
}

u_int
layout_set_select(struct window *w, u_int layout)
{
	if (layout > nitems(layout_sets) - 1)
		layout = nitems(layout_sets) - 1;

	if (layout_sets[layout].arrange != NULL)
		layout_sets[layout].arrange(w);

	w->lastlayout = layout;
	return (layout);
}

u_int
layout_set_next(struct window *w)
{
	u_int	layout;

	if (w->lastlayout == -1)
		layout = 0;
	else {
		layout = w->lastlayout + 1;
		if (layout > nitems(layout_sets) - 1)
			layout = 0;
	}

	if (layout_sets[layout].arrange != NULL)
		layout_sets[layout].arrange(w);
	w->lastlayout = layout;
	return (layout);
}

u_int
layout_set_previous(struct window *w)
{
	u_int	layout;

	if (w->lastlayout == -1)
		layout = nitems(layout_sets) - 1;
	else {
		layout = w->lastlayout;
		if (layout == 0)
			layout = nitems(layout_sets) - 1;
		else
			layout--;
	}

	if (layout_sets[layout].arrange != NULL)
		layout_sets[layout].arrange(w);
	w->lastlayout = layout;
	return (layout);
}

void
layout_set_even_h(struct window *w)
{
	struct window_pane	*wp;
	struct layout_cell	*lc, *lcnew;
	u_int			 i, n, width, xoff;

	layout_print_cell(w->layout_root, __func__, 1);

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n <= 1)
		return;

	/* How many can we fit? */
	width = (w->sx - (n - 1)) / n;
	if (width < PANE_MINIMUM)
		width = PANE_MINIMUM;

	/* Free the old root and construct a new. */
	layout_free(w);
	lc = w->layout_root = layout_create_cell(NULL);
	layout_set_size(lc, w->sx, w->sy, 0, 0);
	layout_make_node(lc, LAYOUT_LEFTRIGHT);

	/* Build new leaf cells. */
	i = xoff = 0;
	TAILQ_FOREACH(wp, &w->panes, entry) {
		/* Create child cell. */
		lcnew = layout_create_cell(lc);
		layout_set_size(lcnew, width, w->sy, xoff, 0);
		layout_make_leaf(lcnew, wp);
		TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);

		i++;
		xoff += width + 1;
	}

	/* Allocate any remaining space. */
	if (w->sx > xoff - 1) {
		lc = TAILQ_LAST(&lc->cells, layout_cells);
		layout_resize_adjust(lc, LAYOUT_LEFTRIGHT, w->sx - (xoff - 1));
	}

	/* Fix cell offsets. */
	layout_fix_offsets(lc);
	layout_fix_panes(w, w->sx, w->sy);

	layout_print_cell(w->layout_root, __func__, 1);

	server_redraw_window(w);
}

void
layout_set_even_v(struct window *w)
{
	struct window_pane	*wp;
	struct layout_cell	*lc, *lcnew;
	u_int			 i, n, height, yoff;

	layout_print_cell(w->layout_root, __func__, 1);

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n <= 1)
		return;

	/* How many can we fit? */
	height = (w->sy - (n - 1)) / n;
	if (height < PANE_MINIMUM)
		height = PANE_MINIMUM;

	/* Free the old root and construct a new. */
	layout_free(w);
	lc = w->layout_root = layout_create_cell(NULL);
	layout_set_size(lc, w->sx, w->sy, 0, 0);
	layout_make_node(lc, LAYOUT_TOPBOTTOM);

	/* Build new leaf cells. */
	i = yoff = 0;
	TAILQ_FOREACH(wp, &w->panes, entry) {
		/* Create child cell. */
		lcnew = layout_create_cell(lc);
		layout_set_size(lcnew, w->sx, height, 0, yoff);
		layout_make_leaf(lcnew, wp);
		TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);

		i++;
		yoff += height + 1;
	}

	/* Allocate any remaining space. */
	if (w->sy > yoff - 1) {
		lc = TAILQ_LAST(&lc->cells, layout_cells);
		layout_resize_adjust(lc, LAYOUT_TOPBOTTOM, w->sy - (yoff - 1));
	}

	/* Fix cell offsets. */
	layout_fix_offsets(lc);
	layout_fix_panes(w, w->sx, w->sy);

	layout_print_cell(w->layout_root, __func__, 1);

	server_redraw_window(w);
}

void
layout_set_main_h(struct window *w)
{
	struct window_pane	*wp;
	struct layout_cell	*lc, *lcmain, *lcrow, *lcchild;
	u_int			 n, mainheight, otherheight, width, height;
	u_int			 used, i, j, columns, rows, totalrows;

	layout_print_cell(w->layout_root, __func__, 1);

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n <= 1)
		return;
	n--;	/* take off main pane */

	/* How many rows and columns will be needed, not counting main? */
	columns = (w->sx + 1) / (PANE_MINIMUM + 1);	/* maximum columns */
	if (columns == 0)
		columns = 1;
	rows = 1 + (n - 1) / columns;
	columns = 1 + (n - 1) / rows;
	width = (w->sx - (n - 1)) / columns;

	/* Get the main pane height and add one for separator line. */
	mainheight = options_get_number(w->options, "main-pane-height") + 1;

	/* Get the optional other pane height and add one for separator line. */
	otherheight = options_get_number(w->options, "other-pane-height") + 1;

	/*
	 * If an other pane height was specified, honour it so long as it
	 * doesn't shrink the main height to less than the main-pane-height
	 */
	if (otherheight > 1 && w->sy - otherheight > mainheight)
		mainheight = w->sy - otherheight;
	if (mainheight < PANE_MINIMUM + 1)
		mainheight = PANE_MINIMUM + 1;

	/* Try and make everything fit. */
	totalrows = rows * (PANE_MINIMUM + 1) - 1;
	if (mainheight + totalrows > w->sy) {
		if (totalrows + PANE_MINIMUM + 1 > w->sy)
			mainheight = PANE_MINIMUM + 2;
		else
			mainheight = w->sy - totalrows;
		height = PANE_MINIMUM;
	} else
		height = (w->sy - mainheight - (rows - 1)) / rows;

	/* Free old tree and create a new root. */
	layout_free(w);
	lc = w->layout_root = layout_create_cell(NULL);
	layout_set_size(lc, w->sx, mainheight + rows * (height + 1) - 1, 0, 0);
	layout_make_node(lc, LAYOUT_TOPBOTTOM);

	/* Create the main pane. */
	lcmain = layout_create_cell(lc);
	layout_set_size(lcmain, w->sx, mainheight - 1, 0, 0);
	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);

	/* Create a grid of the remaining cells. */
	wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
	for (j = 0; j < rows; j++) {
		/* If this is the last cell, all done. */
		if (wp == NULL)
			break;

		/* Create the new row. */
		lcrow = layout_create_cell(lc);
		layout_set_size(lcrow, w->sx, height, 0, 0);
		TAILQ_INSERT_TAIL(&lc->cells, lcrow, entry);

		/* If only one column, just use the row directly. */
		if (columns == 1) {
			layout_make_leaf(lcrow, wp);
			wp = TAILQ_NEXT(wp, entry);
			continue;
		}

		/* Add in the columns. */
		layout_make_node(lcrow, LAYOUT_LEFTRIGHT);
		for (i = 0; i < columns; i++) {
			/* Create and add a pane cell. */
			lcchild = layout_create_cell(lcrow);
			layout_set_size(lcchild, width, height, 0, 0);
			layout_make_leaf(lcchild, wp);
			TAILQ_INSERT_TAIL(&lcrow->cells, lcchild, entry);

			/* Move to the next cell. */
			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
				break;
		}

		/* Adjust the row to fit the full width if necessary. */
		if (i == columns)
			i--;
		used = ((i + 1) * (width + 1)) - 1;
		if (w->sx <= used)
			continue;
		lcchild = TAILQ_LAST(&lcrow->cells, layout_cells);
		layout_resize_adjust(lcchild, LAYOUT_LEFTRIGHT, w->sx - used);
	}

	/* Adjust the last row height to fit if necessary. */
	used = mainheight + (rows * height) + rows - 1;
	if (w->sy > used) {
		lcrow = TAILQ_LAST(&lc->cells, layout_cells);
		layout_resize_adjust(lcrow, LAYOUT_TOPBOTTOM, w->sy - used);
	}

	/* Fix cell offsets. */
	layout_fix_offsets(lc);
	layout_fix_panes(w, w->sx, w->sy);

	layout_print_cell(w->layout_root, __func__, 1);

	server_redraw_window(w);
}

void
layout_set_main_v(struct window *w)
{
	struct window_pane	*wp;
	struct layout_cell	*lc, *lcmain, *lccolumn, *lcchild;
	u_int			 n, mainwidth, otherwidth, width, height;
	u_int			 used, i, j, columns, rows, totalcolumns;

	layout_print_cell(w->layout_root, __func__, 1);

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n <= 1)
		return;
	n--;	/* take off main pane */

	/* How many rows and columns will be needed, not counting main? */
	rows = (w->sy + 1) / (PANE_MINIMUM + 1);	/* maximum rows */
	if (rows == 0)
		rows = 1;
	columns = 1 + (n - 1) / rows;
	rows = 1 + (n - 1) / columns;
	height = (w->sy - (n - 1)) / rows;

	/* Get the main pane width and add one for separator line. */
	mainwidth = options_get_number(w->options, "main-pane-width") + 1;

	/* Get the optional other pane width and add one for separator line. */
	otherwidth = options_get_number(w->options, "other-pane-width") + 1;

	/*
	 * If an other pane width was specified, honour it so long as it
	 * doesn't shrink the main width to less than the main-pane-width
	 */
	if (otherwidth > 1 && w->sx - otherwidth > mainwidth)
		mainwidth = w->sx - otherwidth;
	if (mainwidth < PANE_MINIMUM + 1)
		mainwidth = PANE_MINIMUM + 1;

	/* Try and make everything fit. */
	totalcolumns = columns * (PANE_MINIMUM + 1) - 1;
	if (mainwidth + totalcolumns > w->sx) {
		if (totalcolumns + PANE_MINIMUM + 1 > w->sx)
			mainwidth = PANE_MINIMUM + 2;
		else
			mainwidth = w->sx - totalcolumns;
		width = PANE_MINIMUM;
	} else
		width = (w->sx - mainwidth - (columns - 1)) / columns;

	/* Free old tree and create a new root. */
	layout_free(w);
	lc = w->layout_root = layout_create_cell(NULL);
	layout_set_size(lc, mainwidth + columns * (width + 1) - 1, w->sy, 0, 0);
	layout_make_node(lc, LAYOUT_LEFTRIGHT);

	/* Create the main pane. */
	lcmain = layout_create_cell(lc);
	layout_set_size(lcmain, mainwidth - 1, w->sy, 0, 0);
	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);

	/* Create a grid of the remaining cells. */
	wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
	for (j = 0; j < columns; j++) {
		/* If this is the last cell, all done. */
		if (wp == NULL)
			break;

		/* Create the new column. */
		lccolumn = layout_create_cell(lc);
		layout_set_size(lccolumn, width, w->sy, 0, 0);
		TAILQ_INSERT_TAIL(&lc->cells, lccolumn, entry);

		/* If only one row, just use the row directly. */
		if (rows == 1) {
			layout_make_leaf(lccolumn, wp);
			wp = TAILQ_NEXT(wp, entry);
			continue;
		}

		/* Add in the rows. */
		layout_make_node(lccolumn, LAYOUT_TOPBOTTOM);
		for (i = 0; i < rows; i++) {
			/* Create and add a pane cell. */
			lcchild = layout_create_cell(lccolumn);
			layout_set_size(lcchild, width, height, 0, 0);
			layout_make_leaf(lcchild, wp);
			TAILQ_INSERT_TAIL(&lccolumn->cells, lcchild, entry);

			/* Move to the next cell. */
			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
				break;
		}

		/* Adjust the column to fit the full height if necessary. */
		if (i == rows)
			i--;
		used = ((i + 1) * (height + 1)) - 1;
		if (w->sy <= used)
			continue;
		lcchild = TAILQ_LAST(&lccolumn->cells, layout_cells);
		layout_resize_adjust(lcchild, LAYOUT_TOPBOTTOM, w->sy - used);
	}

	/* Adjust the last column width to fit if necessary. */
	used = mainwidth + (columns * width) + columns - 1;
	if (w->sx > used) {
		lccolumn = TAILQ_LAST(&lc->cells, layout_cells);
		layout_resize_adjust(lccolumn, LAYOUT_LEFTRIGHT, w->sx - used);
	}

	/* Fix cell offsets. */
	layout_fix_offsets(lc);
	layout_fix_panes(w, w->sx, w->sy);

	layout_print_cell(w->layout_root, __func__, 1);

	server_redraw_window(w);
}

void
layout_set_tiled(struct window *w)
{
	struct window_pane	*wp;
	struct layout_cell	*lc, *lcrow, *lcchild;
	u_int			 n, width, height, used;
	u_int			 i, j, columns, rows;

	layout_print_cell(w->layout_root, __func__, 1);

	/* Get number of panes. */
	n = window_count_panes(w);
	if (n <= 1)
		return;

	/* How many rows and columns are wanted? */
	rows = columns = 1;
	while (rows * columns < n) {
		rows++;
		if (rows * columns < n)
			columns++;
	}

	/* What width and height should they be? */
	width = (w->sx - (columns - 1)) / columns;
	if (width < PANE_MINIMUM)
		width = PANE_MINIMUM;
	height = (w->sy - (rows - 1)) / rows;
	if (height < PANE_MINIMUM)
		height = PANE_MINIMUM;

	/* Free old tree and create a new root. */
	layout_free(w);
	lc = w->layout_root = layout_create_cell(NULL);
	layout_set_size(lc, (width + 1) * columns - 1,
	    (height + 1) * rows - 1, 0, 0);
	layout_make_node(lc, LAYOUT_TOPBOTTOM);

	/* Create a grid of the cells. */
	wp = TAILQ_FIRST(&w->panes);
	for (j = 0; j < rows; j++) {
		/* If this is the last cell, all done. */
		if (wp == NULL)
			break;

		/* Create the new row. */
		lcrow = layout_create_cell(lc);
		layout_set_size(lcrow, w->sx, height, 0, 0);
		TAILQ_INSERT_TAIL(&lc->cells, lcrow, entry);

		/* If only one column, just use the row directly. */
		if (n - (j * columns) == 1 || columns == 1) {
			layout_make_leaf(lcrow, wp);
			wp = TAILQ_NEXT(wp, entry);
			continue;
		}

		/* Add in the columns. */
		layout_make_node(lcrow, LAYOUT_LEFTRIGHT);
		for (i = 0; i < columns; i++) {
			/* Create and add a pane cell. */
			lcchild = layout_create_cell(lcrow);
			layout_set_size(lcchild, width, height, 0, 0);
			layout_make_leaf(lcchild, wp);
			TAILQ_INSERT_TAIL(&lcrow->cells, lcchild, entry);

			/* Move to the next cell. */
			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
				break;
		}

		/*
		 * Adjust the row and columns to fit the full width if
		 * necessary.
		 */
		if (i == columns)
			i--;
		used = ((i + 1) * (width + 1)) - 1;
		if (w->sx <= used)
			continue;
		lcchild = TAILQ_LAST(&lcrow->cells, layout_cells);
		layout_resize_adjust(lcchild, LAYOUT_LEFTRIGHT, w->sx - used);
	}

	/* Adjust the last row height to fit if necessary. */
	used = (rows * height) + rows - 1;
	if (w->sy > used) {
		lcrow = TAILQ_LAST(&lc->cells, layout_cells);
		layout_resize_adjust(lcrow, LAYOUT_TOPBOTTOM, w->sy - used);
	}

	/* Fix cell offsets. */
	layout_fix_offsets(lc);
	layout_fix_panes(w, w->sx, w->sy);

	layout_print_cell(w->layout_root, __func__, 1);

	server_redraw_window(w);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: layout-set.c,v 1.14 2016/01/19 15:59:12 nicm Exp $ */
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 <string.h>
22
23			#include "tmux.h"
24
25			/*
26			* Set window layouts - predefined methods to arrange windows. These are
27			* one-off and generate a layout tree.
28			*/
29
30			void layout_set_even_h(struct window *);
31			void layout_set_even_v(struct window *);
32			void layout_set_main_h(struct window *);
33			void layout_set_main_v(struct window *);
34			void layout_set_tiled(struct window *);
35
36			const struct {
37			const char *name;
38			void (arrange)(struct window );
39			} layout_sets[] = {
40			{ "even-horizontal", layout_set_even_h },
41			{ "even-vertical", layout_set_even_v },
42			{ "main-horizontal", layout_set_main_h },
43			{ "main-vertical", layout_set_main_v },
44			{ "tiled", layout_set_tiled },
45			};
46
47			int
48			layout_set_lookup(const char *name)
49			{
50			u_int i;
51			int matched = -1;
52
53			for (i = 0; i < nitems(layout_sets); i++) {
54			if (strncmp(layout_sets[i].name, name, strlen(name)) == 0) {
55			if (matched != -1) /* ambiguous */
56			return (-1);
57			matched = i;
58			}
59			}
60
61			return (matched);
62			}
63
64			u_int
65			layout_set_select(struct window *w, u_int layout)
66			{
67			if (layout > nitems(layout_sets) - 1)
68			layout = nitems(layout_sets) - 1;
69
70			if (layout_sets[layout].arrange != NULL)
71			layout_sets[layout].arrange(w);
72
73			w->lastlayout = layout;
74			return (layout);
75			}
76
77			u_int
78			layout_set_next(struct window *w)
79			{
80			u_int layout;
81
82			if (w->lastlayout == -1)
83			layout = 0;
84			else {
85			layout = w->lastlayout + 1;
86			if (layout > nitems(layout_sets) - 1)
87			layout = 0;
88			}
89
90			if (layout_sets[layout].arrange != NULL)
91			layout_sets[layout].arrange(w);
92			w->lastlayout = layout;
93			return (layout);
94			}
95
96			u_int
97			layout_set_previous(struct window *w)
98			{
99			u_int layout;
100
101			if (w->lastlayout == -1)
102			layout = nitems(layout_sets) - 1;
103			else {
104			layout = w->lastlayout;
105			if (layout == 0)
106			layout = nitems(layout_sets) - 1;
107			else
108			layout--;
109			}
110
111			if (layout_sets[layout].arrange != NULL)
112			layout_sets[layout].arrange(w);
113			w->lastlayout = layout;
114			return (layout);
115			}
116
117			void
118			layout_set_even_h(struct window *w)
119			{
120			struct window_pane *wp;
121			struct layout_cell lc, lcnew;
122			u_int i, n, width, xoff;
123
124			layout_print_cell(w->layout_root, __func__, 1);
125
126			/* Get number of panes. */
127			n = window_count_panes(w);
128			if (n <= 1)
129			return;
130
131			/* How many can we fit? */
132			width = (w->sx - (n - 1)) / n;
133			if (width < PANE_MINIMUM)
134			width = PANE_MINIMUM;
135
136			/* Free the old root and construct a new. */
137			layout_free(w);
138			lc = w->layout_root = layout_create_cell(NULL);
139			layout_set_size(lc, w->sx, w->sy, 0, 0);
140			layout_make_node(lc, LAYOUT_LEFTRIGHT);
141
142			/* Build new leaf cells. */
143			i = xoff = 0;
144			TAILQ_FOREACH(wp, &w->panes, entry) {
145			/* Create child cell. */
146			lcnew = layout_create_cell(lc);
147			layout_set_size(lcnew, width, w->sy, xoff, 0);
148			layout_make_leaf(lcnew, wp);
149			TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);
150
151			i++;
152			xoff += width + 1;
153			}
154
155			/* Allocate any remaining space. */
156			if (w->sx > xoff - 1) {
157			lc = TAILQ_LAST(&lc->cells, layout_cells);
158			layout_resize_adjust(lc, LAYOUT_LEFTRIGHT, w->sx - (xoff - 1));
159			}
160
161			/* Fix cell offsets. */
162			layout_fix_offsets(lc);
163			layout_fix_panes(w, w->sx, w->sy);
164
165			layout_print_cell(w->layout_root, __func__, 1);
166
167			server_redraw_window(w);
168			}
169
170			void
171			layout_set_even_v(struct window *w)
172			{
173			struct window_pane *wp;
174			struct layout_cell lc, lcnew;
175			u_int i, n, height, yoff;
176
177			layout_print_cell(w->layout_root, __func__, 1);
178
179			/* Get number of panes. */
180			n = window_count_panes(w);
181			if (n <= 1)
182			return;
183
184			/* How many can we fit? */
185			height = (w->sy - (n - 1)) / n;
186			if (height < PANE_MINIMUM)
187			height = PANE_MINIMUM;
188
189			/* Free the old root and construct a new. */
190			layout_free(w);
191			lc = w->layout_root = layout_create_cell(NULL);
192			layout_set_size(lc, w->sx, w->sy, 0, 0);
193			layout_make_node(lc, LAYOUT_TOPBOTTOM);
194
195			/* Build new leaf cells. */
196			i = yoff = 0;
197			TAILQ_FOREACH(wp, &w->panes, entry) {
198			/* Create child cell. */
199			lcnew = layout_create_cell(lc);
200			layout_set_size(lcnew, w->sx, height, 0, yoff);
201			layout_make_leaf(lcnew, wp);
202			TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);
203
204			i++;
205			yoff += height + 1;
206			}
207
208			/* Allocate any remaining space. */
209			if (w->sy > yoff - 1) {
210			lc = TAILQ_LAST(&lc->cells, layout_cells);
211			layout_resize_adjust(lc, LAYOUT_TOPBOTTOM, w->sy - (yoff - 1));
212			}
213
214			/* Fix cell offsets. */
215			layout_fix_offsets(lc);
216			layout_fix_panes(w, w->sx, w->sy);
217
218			layout_print_cell(w->layout_root, __func__, 1);
219
220			server_redraw_window(w);
221			}
222
223			void
224			layout_set_main_h(struct window *w)
225			{
226			struct window_pane *wp;
227			struct layout_cell lc, lcmain, lcrow, lcchild;
228			u_int n, mainheight, otherheight, width, height;
229			u_int used, i, j, columns, rows, totalrows;
230
231			layout_print_cell(w->layout_root, __func__, 1);
232
233			/* Get number of panes. */
234			n = window_count_panes(w);
235			if (n <= 1)
236			return;
237			n--; /* take off main pane */
238
239			/* How many rows and columns will be needed, not counting main? */
240			columns = (w->sx + 1) / (PANE_MINIMUM + 1); /* maximum columns */
241			if (columns == 0)
242			columns = 1;
243			rows = 1 + (n - 1) / columns;
244			columns = 1 + (n - 1) / rows;
245			width = (w->sx - (n - 1)) / columns;
246
247			/* Get the main pane height and add one for separator line. */
248			mainheight = options_get_number(w->options, "main-pane-height") + 1;
249
250			/* Get the optional other pane height and add one for separator line. */
251			otherheight = options_get_number(w->options, "other-pane-height") + 1;
252
253			/*
254			* If an other pane height was specified, honour it so long as it
255			* doesn't shrink the main height to less than the main-pane-height
256			*/
257			if (otherheight > 1 && w->sy - otherheight > mainheight)
258			mainheight = w->sy - otherheight;
259			if (mainheight < PANE_MINIMUM + 1)
260			mainheight = PANE_MINIMUM + 1;
261
262			/* Try and make everything fit. */
263			totalrows = rows * (PANE_MINIMUM + 1) - 1;
264			if (mainheight + totalrows > w->sy) {
265			if (totalrows + PANE_MINIMUM + 1 > w->sy)
266			mainheight = PANE_MINIMUM + 2;
267			else
268			mainheight = w->sy - totalrows;
269			height = PANE_MINIMUM;
270			} else
271			height = (w->sy - mainheight - (rows - 1)) / rows;
272
273			/* Free old tree and create a new root. */
274			layout_free(w);
275			lc = w->layout_root = layout_create_cell(NULL);
276			layout_set_size(lc, w->sx, mainheight + rows * (height + 1) - 1, 0, 0);
277			layout_make_node(lc, LAYOUT_TOPBOTTOM);
278
279			/* Create the main pane. */
280			lcmain = layout_create_cell(lc);
281			layout_set_size(lcmain, w->sx, mainheight - 1, 0, 0);
282			layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
283			TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
284
285			/* Create a grid of the remaining cells. */
286			wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
287			for (j = 0; j < rows; j++) {
288			/* If this is the last cell, all done. */
289			if (wp == NULL)
290			break;
291
292			/* Create the new row. */
293			lcrow = layout_create_cell(lc);
294			layout_set_size(lcrow, w->sx, height, 0, 0);
295			TAILQ_INSERT_TAIL(&lc->cells, lcrow, entry);
296
297			/* If only one column, just use the row directly. */
298			if (columns == 1) {
299			layout_make_leaf(lcrow, wp);
300			wp = TAILQ_NEXT(wp, entry);
301			continue;
302			}
303
304			/* Add in the columns. */
305			layout_make_node(lcrow, LAYOUT_LEFTRIGHT);
306			for (i = 0; i < columns; i++) {
307			/* Create and add a pane cell. */
308			lcchild = layout_create_cell(lcrow);
309			layout_set_size(lcchild, width, height, 0, 0);
310			layout_make_leaf(lcchild, wp);
311			TAILQ_INSERT_TAIL(&lcrow->cells, lcchild, entry);
312
313			/* Move to the next cell. */
314			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
315			break;
316			}
317
318			/* Adjust the row to fit the full width if necessary. */
319			if (i == columns)
320			i--;
321			used = ((i + 1) * (width + 1)) - 1;
322			if (w->sx <= used)
323			continue;
324			lcchild = TAILQ_LAST(&lcrow->cells, layout_cells);
325			layout_resize_adjust(lcchild, LAYOUT_LEFTRIGHT, w->sx - used);
326			}
327
328			/* Adjust the last row height to fit if necessary. */
329			used = mainheight + (rows * height) + rows - 1;
330			if (w->sy > used) {
331			lcrow = TAILQ_LAST(&lc->cells, layout_cells);
332			layout_resize_adjust(lcrow, LAYOUT_TOPBOTTOM, w->sy - used);
333			}
334
335			/* Fix cell offsets. */
336			layout_fix_offsets(lc);
337			layout_fix_panes(w, w->sx, w->sy);
338
339			layout_print_cell(w->layout_root, __func__, 1);
340
341			server_redraw_window(w);
342			}
343
344			void
345			layout_set_main_v(struct window *w)
346			{
347			struct window_pane *wp;
348			struct layout_cell lc, lcmain, lccolumn, lcchild;
349			u_int n, mainwidth, otherwidth, width, height;
350			u_int used, i, j, columns, rows, totalcolumns;
351
352			layout_print_cell(w->layout_root, __func__, 1);
353
354			/* Get number of panes. */
355			n = window_count_panes(w);
356			if (n <= 1)
357			return;
358			n--; /* take off main pane */
359
360			/* How many rows and columns will be needed, not counting main? */
361			rows = (w->sy + 1) / (PANE_MINIMUM + 1); /* maximum rows */
362			if (rows == 0)
363			rows = 1;
364			columns = 1 + (n - 1) / rows;
365			rows = 1 + (n - 1) / columns;
366			height = (w->sy - (n - 1)) / rows;
367
368			/* Get the main pane width and add one for separator line. */
369			mainwidth = options_get_number(w->options, "main-pane-width") + 1;
370
371			/* Get the optional other pane width and add one for separator line. */
372			otherwidth = options_get_number(w->options, "other-pane-width") + 1;
373
374			/*
375			* If an other pane width was specified, honour it so long as it
376			* doesn't shrink the main width to less than the main-pane-width
377			*/
378			if (otherwidth > 1 && w->sx - otherwidth > mainwidth)
379			mainwidth = w->sx - otherwidth;
380			if (mainwidth < PANE_MINIMUM + 1)
381			mainwidth = PANE_MINIMUM + 1;
382
383			/* Try and make everything fit. */
384			totalcolumns = columns * (PANE_MINIMUM + 1) - 1;
385			if (mainwidth + totalcolumns > w->sx) {
386			if (totalcolumns + PANE_MINIMUM + 1 > w->sx)
387			mainwidth = PANE_MINIMUM + 2;
388			else
389			mainwidth = w->sx - totalcolumns;
390			width = PANE_MINIMUM;
391			} else
392			width = (w->sx - mainwidth - (columns - 1)) / columns;
393
394			/* Free old tree and create a new root. */
395			layout_free(w);
396			lc = w->layout_root = layout_create_cell(NULL);
397			layout_set_size(lc, mainwidth + columns * (width + 1) - 1, w->sy, 0, 0);
398			layout_make_node(lc, LAYOUT_LEFTRIGHT);
399
400			/* Create the main pane. */
401			lcmain = layout_create_cell(lc);
402			layout_set_size(lcmain, mainwidth - 1, w->sy, 0, 0);
403			layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
404			TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
405
406			/* Create a grid of the remaining cells. */
407			wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
408			for (j = 0; j < columns; j++) {
409			/* If this is the last cell, all done. */
410			if (wp == NULL)
411			break;
412
413			/* Create the new column. */
414			lccolumn = layout_create_cell(lc);
415			layout_set_size(lccolumn, width, w->sy, 0, 0);
416			TAILQ_INSERT_TAIL(&lc->cells, lccolumn, entry);
417
418			/* If only one row, just use the row directly. */
419			if (rows == 1) {
420			layout_make_leaf(lccolumn, wp);
421			wp = TAILQ_NEXT(wp, entry);
422			continue;
423			}
424
425			/* Add in the rows. */
426			layout_make_node(lccolumn, LAYOUT_TOPBOTTOM);
427			for (i = 0; i < rows; i++) {
428			/* Create and add a pane cell. */
429			lcchild = layout_create_cell(lccolumn);
430			layout_set_size(lcchild, width, height, 0, 0);
431			layout_make_leaf(lcchild, wp);
432			TAILQ_INSERT_TAIL(&lccolumn->cells, lcchild, entry);
433
434			/* Move to the next cell. */
435			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
436			break;
437			}
438
439			/* Adjust the column to fit the full height if necessary. */
440			if (i == rows)
441			i--;
442			used = ((i + 1) * (height + 1)) - 1;
443			if (w->sy <= used)
444			continue;
445			lcchild = TAILQ_LAST(&lccolumn->cells, layout_cells);
446			layout_resize_adjust(lcchild, LAYOUT_TOPBOTTOM, w->sy - used);
447			}
448
449			/* Adjust the last column width to fit if necessary. */
450			used = mainwidth + (columns * width) + columns - 1;
451			if (w->sx > used) {
452			lccolumn = TAILQ_LAST(&lc->cells, layout_cells);
453			layout_resize_adjust(lccolumn, LAYOUT_LEFTRIGHT, w->sx - used);
454			}
455
456			/* Fix cell offsets. */
457			layout_fix_offsets(lc);
458			layout_fix_panes(w, w->sx, w->sy);
459
460			layout_print_cell(w->layout_root, __func__, 1);
461
462			server_redraw_window(w);
463			}
464
465			void
466			layout_set_tiled(struct window *w)
467			{
468			struct window_pane *wp;
469			struct layout_cell lc, lcrow, *lcchild;
470			u_int n, width, height, used;
471			u_int i, j, columns, rows;
472
473			layout_print_cell(w->layout_root, __func__, 1);
474
475			/* Get number of panes. */
476			n = window_count_panes(w);
477			if (n <= 1)
478			return;
479
480			/* How many rows and columns are wanted? */
481			rows = columns = 1;
482			while (rows * columns < n) {
483			rows++;
484			if (rows * columns < n)
485			columns++;
486			}
487
488			/* What width and height should they be? */
489			width = (w->sx - (columns - 1)) / columns;
490			if (width < PANE_MINIMUM)
491			width = PANE_MINIMUM;
492			height = (w->sy - (rows - 1)) / rows;
493			if (height < PANE_MINIMUM)
494			height = PANE_MINIMUM;
495
496			/* Free old tree and create a new root. */
497			layout_free(w);
498			lc = w->layout_root = layout_create_cell(NULL);
499			layout_set_size(lc, (width + 1) * columns - 1,
500			(height + 1) * rows - 1, 0, 0);
501			layout_make_node(lc, LAYOUT_TOPBOTTOM);
502
503			/* Create a grid of the cells. */
504			wp = TAILQ_FIRST(&w->panes);
505			for (j = 0; j < rows; j++) {
506			/* If this is the last cell, all done. */
507			if (wp == NULL)
508			break;
509
510			/* Create the new row. */
511			lcrow = layout_create_cell(lc);
512			layout_set_size(lcrow, w->sx, height, 0, 0);
513			TAILQ_INSERT_TAIL(&lc->cells, lcrow, entry);
514
515			/* If only one column, just use the row directly. */
516			if (n - (j * columns) == 1 \|\| columns == 1) {
517			layout_make_leaf(lcrow, wp);
518			wp = TAILQ_NEXT(wp, entry);
519			continue;
520			}
521
522			/* Add in the columns. */
523			layout_make_node(lcrow, LAYOUT_LEFTRIGHT);
524			for (i = 0; i < columns; i++) {
525			/* Create and add a pane cell. */
526			lcchild = layout_create_cell(lcrow);
527			layout_set_size(lcchild, width, height, 0, 0);
528			layout_make_leaf(lcchild, wp);
529			TAILQ_INSERT_TAIL(&lcrow->cells, lcchild, entry);
530
531			/* Move to the next cell. */
532			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
533			break;
534			}
535
536			/*
537			* Adjust the row and columns to fit the full width if
538			* necessary.
539			*/
540			if (i == columns)
541			i--;
542			used = ((i + 1) * (width + 1)) - 1;
543			if (w->sx <= used)
544			continue;
545			lcchild = TAILQ_LAST(&lcrow->cells, layout_cells);
546			layout_resize_adjust(lcchild, LAYOUT_LEFTRIGHT, w->sx - used);
547			}
548
549			/* Adjust the last row height to fit if necessary. */
550			used = (rows * height) + rows - 1;
551			if (w->sy > used) {
552			lcrow = TAILQ_LAST(&lc->cells, layout_cells);
553			layout_resize_adjust(lcrow, LAYOUT_TOPBOTTOM, w->sy - used);
554			}
555
556			/* Fix cell offsets. */
557			layout_fix_offsets(lc);
558			layout_fix_panes(w, w->sx, w->sy);
559
560			layout_print_cell(w->layout_root, __func__, 1);
561
562			server_redraw_window(w);
563			}