Adding upstream version 3.3a.upstream/3.3a

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 487 insertions, 0 deletions

diff --git a/layout-set.c b/layout-set.c
new file mode 100644
index 0000000..c702817
--- /dev/null
+++ b/layout-set.c
@@ -0,0 +1,487 @@
+/* $OpenBSD$ */
+
+/*
+ * 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 <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Set window layouts - predefined methods to arrange windows. These are
+ * one-off and generate a layout tree.
+ */
+
+static void	layout_set_even_h(struct window *);
+static void	layout_set_even_v(struct window *);
+static void	layout_set_main_h(struct window *);
+static void	layout_set_main_v(struct window *);
+static void	layout_set_tiled(struct window *);
+
+static 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);
+}
+
+static void
+layout_set_even(struct window *w, enum layout_type type)
+{
+	struct window_pane	*wp;
+	struct layout_cell	*lc, *lcnew;
+	u_int			 n, sx, sy;
+
+	layout_print_cell(w->layout_root, __func__, 1);
+
+	/* Get number of panes. */
+	n = window_count_panes(w);
+	if (n <= 1)
+		return;
+
+	/* Free the old root and construct a new. */
+	layout_free(w);
+	lc = w->layout_root = layout_create_cell(NULL);
+	if (type == LAYOUT_LEFTRIGHT) {
+		sx = (n * (PANE_MINIMUM + 1)) - 1;
+		if (sx < w->sx)
+			sx = w->sx;
+		sy = w->sy;
+	} else {
+		sy = (n * (PANE_MINIMUM + 1)) - 1;
+		if (sy < w->sy)
+			sy = w->sy;
+		sx = w->sx;
+	}
+	layout_set_size(lc, sx, sy, 0, 0);
+	layout_make_node(lc, type);
+
+	/* Build new leaf cells. */
+	TAILQ_FOREACH(wp, &w->panes, entry) {
+		lcnew = layout_create_cell(lc);
+		layout_make_leaf(lcnew, wp);
+		lcnew->sx = w->sx;
+		lcnew->sy = w->sy;
+		TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);
+	}
+
+	/* Spread out cells. */
+	layout_spread_cell(w, lc);
+
+	/* Fix cell offsets. */
+	layout_fix_offsets(w);
+	layout_fix_panes(w, NULL);
+
+	layout_print_cell(w->layout_root, __func__, 1);
+
+	window_resize(w, lc->sx, lc->sy, -1, -1);
+	notify_window("window-layout-changed", w);
+	server_redraw_window(w);
+}
+
+static void
+layout_set_even_h(struct window *w)
+{
+	layout_set_even(w, LAYOUT_LEFTRIGHT);
+}
+
+static void
+layout_set_even_v(struct window *w)
+{
+	layout_set_even(w, LAYOUT_TOPBOTTOM);
+}
+
+static void
+layout_set_main_h(struct window *w)
+{
+	struct window_pane	*wp;
+	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
+	u_int			 n, mainh, otherh, sx, sy;
+	char			*cause;
+	const char		*s;
+
+	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 */
+
+	/* Find available height - take off one line for the border. */
+	sy = w->sy - 1;
+
+	/* Get the main pane height. */
+	s = options_get_string(w->options, "main-pane-height");
+	mainh = args_string_percentage(s, 0, sy, sy, &cause);
+	if (cause != NULL) {
+		mainh = 24;
+		free(cause);
+	}
+
+	/* Work out the other pane height. */
+	if (mainh + PANE_MINIMUM >= sy) {
+		if (sy <= PANE_MINIMUM + PANE_MINIMUM)
+			mainh = PANE_MINIMUM;
+		else
+			mainh = sy - PANE_MINIMUM;
+		otherh = PANE_MINIMUM;
+	} else {
+		s = options_get_string(w->options, "other-pane-height");
+		otherh = args_string_percentage(s, 0, sy, sy, &cause);
+		if (cause != NULL || otherh == 0) {
+			otherh = sy - mainh;
+			free(cause);
+		} else if (otherh > sy || sy - otherh < mainh)
+			otherh = sy - mainh;
+		else
+			mainh = sy - otherh;
+	}
+
+	/* Work out what width is needed. */
+	sx = (n * (PANE_MINIMUM + 1)) - 1;
+	if (sx < w->sx)
+		sx = w->sx;
+
+	/* Free old tree and create a new root. */
+	layout_free(w);
+	lc = w->layout_root = layout_create_cell(NULL);
+	layout_set_size(lc, sx, mainh + otherh + 1, 0, 0);
+	layout_make_node(lc, LAYOUT_TOPBOTTOM);
+
+	/* Create the main pane. */
+	lcmain = layout_create_cell(lc);
+	layout_set_size(lcmain, sx, mainh, 0, 0);
+	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
+	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
+
+	/* Create the other pane. */
+	lcother = layout_create_cell(lc);
+	layout_set_size(lcother, sx, otherh, 0, 0);
+	if (n == 1) {
+		wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
+		layout_make_leaf(lcother, wp);
+		TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
+	} else {
+		layout_make_node(lcother, LAYOUT_LEFTRIGHT);
+		TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
+
+		/* Add the remaining panes as children. */
+		TAILQ_FOREACH(wp, &w->panes, entry) {
+			if (wp == TAILQ_FIRST(&w->panes))
+				continue;
+			lcchild = layout_create_cell(lcother);
+			layout_set_size(lcchild, PANE_MINIMUM, otherh, 0, 0);
+			layout_make_leaf(lcchild, wp);
+			TAILQ_INSERT_TAIL(&lcother->cells, lcchild, entry);
+		}
+		layout_spread_cell(w, lcother);
+	}
+
+	/* Fix cell offsets. */
+	layout_fix_offsets(w);
+	layout_fix_panes(w, NULL);
+
+	layout_print_cell(w->layout_root, __func__, 1);
+
+	window_resize(w, lc->sx, lc->sy, -1, -1);
+	notify_window("window-layout-changed", w);
+	server_redraw_window(w);
+}
+
+static void
+layout_set_main_v(struct window *w)
+{
+	struct window_pane	*wp;
+	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
+	u_int			 n, mainw, otherw, sx, sy;
+	char			*cause;
+	const char		*s;
+
+	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 */
+
+	/* Find available width - take off one line for the border. */
+	sx = w->sx - 1;
+
+	/* Get the main pane width. */
+	s = options_get_string(w->options, "main-pane-width");
+	mainw = args_string_percentage(s, 0, sx, sx, &cause);
+	if (cause != NULL) {
+		mainw = 80;
+		free(cause);
+	}
+
+	/* Work out the other pane width. */
+	if (mainw + PANE_MINIMUM >= sx) {
+		if (sx <= PANE_MINIMUM + PANE_MINIMUM)
+			mainw = PANE_MINIMUM;
+		else
+			mainw = sx - PANE_MINIMUM;
+		otherw = PANE_MINIMUM;
+	} else {
+		s = options_get_string(w->options, "other-pane-width");
+		otherw = args_string_percentage(s, 0, sx, sx, &cause);
+		if (cause != NULL || otherw == 0) {
+			otherw = sx - mainw;
+			free(cause);
+		} else if (otherw > sx || sx - otherw < mainw)
+			otherw = sx - mainw;
+		else
+			mainw = sx - otherw;
+	}
+
+	/* Work out what height is needed. */
+	sy = (n * (PANE_MINIMUM + 1)) - 1;
+	if (sy < w->sy)
+		sy = w->sy;
+
+	/* Free old tree and create a new root. */
+	layout_free(w);
+	lc = w->layout_root = layout_create_cell(NULL);
+	layout_set_size(lc, mainw + otherw + 1, sy, 0, 0);
+	layout_make_node(lc, LAYOUT_LEFTRIGHT);
+
+	/* Create the main pane. */
+	lcmain = layout_create_cell(lc);
+	layout_set_size(lcmain, mainw, sy, 0, 0);
+	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
+	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
+
+	/* Create the other pane. */
+	lcother = layout_create_cell(lc);
+	layout_set_size(lcother, otherw, sy, 0, 0);
+	if (n == 1) {
+		wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
+		layout_make_leaf(lcother, wp);
+		TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
+	} else {
+		layout_make_node(lcother, LAYOUT_TOPBOTTOM);
+		TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
+
+		/* Add the remaining panes as children. */
+		TAILQ_FOREACH(wp, &w->panes, entry) {
+			if (wp == TAILQ_FIRST(&w->panes))
+				continue;
+			lcchild = layout_create_cell(lcother);
+			layout_set_size(lcchild, otherw, PANE_MINIMUM, 0, 0);
+			layout_make_leaf(lcchild, wp);
+			TAILQ_INSERT_TAIL(&lcother->cells, lcchild, entry);
+		}
+		layout_spread_cell(w, lcother);
+	}
+
+	/* Fix cell offsets. */
+	layout_fix_offsets(w);
+	layout_fix_panes(w, NULL);
+
+	layout_print_cell(w->layout_root, __func__, 1);
+
+	window_resize(w, lc->sx, lc->sy, -1, -1);
+	notify_window("window-layout-changed", w);
+	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, sx, sy;
+	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);
+	sx = ((width + 1) * columns) - 1;
+	if (sx < w->sx)
+		sx = w->sx;
+	sy = ((height + 1) * rows) - 1;
+	if (sy < w->sy)
+		sy = w->sy;
+	layout_set_size(lc, sx, sy, 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(w, 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(w, lcrow, LAYOUT_TOPBOTTOM,
+		    w->sy - used);
+	}
+
+	/* Fix cell offsets. */
+	layout_fix_offsets(w);
+	layout_fix_panes(w, NULL);
+
+	layout_print_cell(w->layout_root, __func__, 1);
+
+	window_resize(w, lc->sx, lc->sy, -1, -1);
+	notify_window("window-layout-changed", w);
+	server_redraw_window(w);
+}