Configurable statusbar - see default config file (irssi.conf) for example

how to configure it. Added %> format which clears to end of line using the
current bg color. Added support for multiple input lines (just the core, not
used anywhere yet).


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1821 dbcabf3a-b0e7-0310-adc4-f8d773084564

1 files changed, 695 insertions, 124 deletions

diff --git a/src/fe-text/statusbar.c b/src/fe-text/statusbar.c
index b8de3ff6..8f12e3e4 100644
--- a/src/fe-text/statusbar.c
+++ b/src/fe-text/statusbar.c
@@ -20,32 +20,123 @@
 
 #include "module.h"
 #include "signals.h"
+#include "expandos.h"
+#include "special-vars.h"
 
 #include "themes.h"
 
 #include "statusbar.h"
+#include "statusbar-config.h"
+#include "statusbar-items.h"
 #include "gui-windows.h"
+#include "gui-printtext.h"
 
-static int backs[] = { 0, 4, 2, 6, 1, 5, 3, 7 }; /* FIXME: should be in some more generic place.. */
+GSList *statusbar_groups;
+STATUSBAR_GROUP_REC *active_statusbar_group;
 
-void statusbar_items_init(void);
-void statusbar_items_deinit(void);
+/*
+   sbar_item_defs: char *name => char *value
+   sbar_item_funcs: char *name => STATUSBAR_FUNC func
+   sbar_signal_items: int signal_id => GSList *(SBAR_ITEM_REC *items)
+   sbar_item_signals: SBAR_ITEM_REC *item => GSList *(int *signal_ids)
+
+*/
+static GHashTable *sbar_item_defs, *sbar_item_funcs;
+static GHashTable *sbar_signal_items, *sbar_item_signals;
+
+void statusbar_item_register(const char *name, const char *value,
+			     STATUSBAR_FUNC func)
+{
+	gpointer hkey, hvalue;
+
+	if (value != NULL) {
+		if (g_hash_table_lookup_extended(sbar_item_defs,
+						 name, &hkey, &hvalue)) {
+			g_hash_table_remove(sbar_item_defs, name);
+			g_free(hkey);
+                        g_free(hvalue);
+		}
+		g_hash_table_insert(sbar_item_defs,
+				    g_strdup(name), g_strdup(value));
+	}
+
+	if (func != NULL) {
+		if (g_hash_table_lookup(sbar_item_funcs, name) == NULL) {
+			g_hash_table_insert(sbar_item_funcs,
+					    g_strdup(name), func);
+		}
+	}
+}
+
+void statusbar_item_unregister(const char *name)
+{
+	gpointer key, value;
+
+	if (g_hash_table_lookup_extended(sbar_item_defs,
+					 name, &key, &value)) {
+		g_hash_table_remove(sbar_item_defs, key);
+		g_free(key);
+                g_free(value);
+	}
+
+	if (g_hash_table_lookup_extended(sbar_item_funcs,
+					 name, &key, &value)) {
+		g_hash_table_remove(sbar_item_funcs, key);
+		g_free(key);
+	}
+}
+
+STATUSBAR_GROUP_REC *statusbar_group_create(const char *name)
+{
+	STATUSBAR_GROUP_REC *rec;
+
+	rec = g_new0(STATUSBAR_GROUP_REC, 1);
+	rec->name = g_strdup(name);
+
+        statusbar_groups = g_slist_append(statusbar_groups, rec);
+	return rec;
+}
+
+void statusbar_group_destroy(STATUSBAR_GROUP_REC *rec)
+{
+	statusbar_groups = g_slist_remove(statusbar_groups, rec);
+
+	while (rec->bars != NULL)
+		statusbar_destroy(rec->bars->data);
+	while (rec->config_bars != NULL)
+                statusbar_config_destroy(rec, rec->config_bars->data);
 
-static GSList *statusbars;
-static int sbar_uppest, sbar_lowest, sbars_up, sbars_down;
+        g_free(rec->name);
+        g_free(rec);
+}
 
-static void statusbar_item_destroy(SBAR_ITEM_REC *rec)
+STATUSBAR_GROUP_REC *statusbar_group_find(const char *name)
 {
-	rec->bar->items = g_slist_remove(rec->bar->items, rec);
-	g_free(rec);
+	GSList *tmp;
+
+	for (tmp = statusbar_groups; tmp != NULL; tmp = tmp->next) {
+		STATUSBAR_GROUP_REC *rec = tmp->data;
+
+		if (strcmp(rec->name, name) == 0)
+                        return rec;
+	}
+
+        return NULL;
 }
 
 static int sbar_item_cmp(SBAR_ITEM_REC *item1, SBAR_ITEM_REC *item2)
 {
-	return item1->priority == item2->priority ? 0 :
-		item1->priority < item2->priority ? -1 : 1;
+	return item1->config->priority == item2->config->priority ? 0 :
+		item1->config->priority < item2->config->priority ? -1 : 1;
+}
+
+static int sbar_cmp_position(STATUSBAR_REC *bar1, STATUSBAR_REC *bar2)
+{
+	return bar1->config->position < bar2->config->position ? -1 : 1;
 }
 
+/* Shink all items in statusbar to their minimum requested size.
+   The items list should be sorted by priority, highest first. */
 static int statusbar_shrink_to_min(GSList *items, int size, int max_width)
 {
 	GSList *tmp;
@@ -71,6 +162,9 @@ static int statusbar_shrink_to_min(GSList *items, int size, int max_width)
         return size;
 }
 
+/* shink the items in statusbar, even if their size gets smaller than
+   their minimum requested size. The items list should be sorted by
+   priority, highest first. */
 static void statusbar_shrink_forced(GSList *items, int size, int max_width)
 {
 	GSList *tmp;
@@ -80,7 +174,7 @@ static void statusbar_shrink_forced(GSList *items, int size, int max_width)
 
 		if (size-rec->size > max_width) {
 			/* remove the whole item */
-                        size -= rec->size+1; /* +1 == the marginal */
+                        size -= rec->size;
 			rec->size = 0;
 		} else {
 			/* shrink the item */
@@ -90,14 +184,14 @@ static void statusbar_shrink_forced(GSList *items, int size, int max_width)
 	}
 }
 
-static void statusbar_get_sizes(STATUSBAR_REC *bar, int max_width)
+static void statusbar_resize_items(STATUSBAR_REC *bar, int max_width)
 {
 	GSList *tmp, *prior_sorted;
         int width;
 
         /* first give items their max. size */
 	prior_sorted = NULL;
-	width = -1; /* -1 because of the marginals */
+	width = 0;
 	for (tmp = bar->items; tmp != NULL; tmp = tmp->next) {
 		SBAR_ITEM_REC *rec = tmp->data;
 
@@ -105,8 +199,7 @@ static void statusbar_get_sizes(STATUSBAR_REC *bar, int max_width)
 		rec->size = rec->max_size;
 
 		if (rec->size > 0) {
-                        /* +1 == marginal between items */
-			width += rec->max_size+1;
+			width += rec->max_size;
 
 			prior_sorted = g_slist_insert_sorted(prior_sorted, rec,
 							     (GCompareFunc)
@@ -131,36 +224,36 @@ static void statusbar_get_sizes(STATUSBAR_REC *bar, int max_width)
 	g_slist_free(prior_sorted);
 }
 
-static void statusbar_redraw_line(STATUSBAR_REC *bar)
+static void statusbar_redraw_items(STATUSBAR_REC *bar)
 {
         WINDOW_REC *old_active_win;
 	GSList *tmp;
 	int xpos, rxpos;
 
 	old_active_win = active_win;
-        if (bar->window != NULL)
-		active_win = bar->window->active;
+        if (bar->parent_window != NULL)
+		active_win = bar->parent_window->active;
 
-	statusbar_get_sizes(bar, screen_width-2);
+	statusbar_resize_items(bar, screen_width);
 
-	xpos = 1;
+	xpos = 0;
 	for (tmp = bar->items; tmp != NULL; tmp = tmp->next) {
 		SBAR_ITEM_REC *rec = tmp->data;
 
-		if (!rec->right_justify && rec->size > 0) {
+		if (!rec->config->right_alignment && rec->size > 0) {
 			rec->xpos = xpos;
-                        xpos += rec->size+1;
+                        xpos += rec->size;
                         rec->func(rec, FALSE);
 		}
 	}
 
-	rxpos = screen_width-1;
+	rxpos = screen_width;
 	for (tmp = bar->items; tmp != NULL; tmp = tmp->next) {
 		SBAR_ITEM_REC *rec = tmp->data;
 
-		if (rec->right_justify && rec->size > 0) {
-                        rxpos -= rec->size+1;
-			rec->xpos = rxpos+1;
+		if (rec->config->right_alignment && rec->size > 0) {
+                        rxpos -= rec->size;
+			rec->xpos = rxpos;
 			rec->func(rec, FALSE);
 		}
 	}
@@ -168,14 +261,7 @@ static void statusbar_redraw_line(STATUSBAR_REC *bar)
 	active_win = old_active_win;
 }
 
-static void statusbar_redraw_all(void)
-{
-	screen_refresh_freeze();
-	g_slist_foreach(statusbars, (GFunc) statusbar_redraw, NULL);
-	screen_refresh_thaw();
-}
-
-STATUSBAR_REC *statusbar_find(int pos, int line)
+/*STATUSBAR_REC *statusbar_find(int pos, int line)
 {
 	GSList *tmp;
 
@@ -187,22 +273,27 @@ STATUSBAR_REC *statusbar_find(int pos, int line)
 	}
 
 	return NULL;
-}
+}*/
 
 void statusbar_redraw(STATUSBAR_REC *bar)
 {
+	char *str;
+
 	if (bar == NULL) {
-		statusbar_redraw_all();
+		if (active_statusbar_group != NULL) {
+			screen_refresh_freeze();
+			g_slist_foreach(active_statusbar_group->bars,
+					(GFunc) statusbar_redraw, NULL);
+			screen_refresh_thaw();
+		}
 		return;
 	}
 
-	screen_set_bg(screen_root, backs[bar->color] << 4);
-	screen_move(screen_root, 0, bar->ypos);
-	screen_clrtoeol(screen_root);
-	screen_set_bg(screen_root, 0);
-
-	statusbar_redraw_line(bar);
+        str = g_strconcat(bar->color, "%>", NULL);
+	gui_printtext(0, bar->real_ypos, str);
+	g_free(str);
 
+	statusbar_redraw_items(bar);
         screen_refresh(NULL);
 }
 
@@ -213,13 +304,17 @@ void statusbar_item_redraw(SBAR_ITEM_REC *item)
 	g_return_if_fail(item != NULL);
 
 	old_active_win = active_win;
-        if (item->bar->window != NULL)
-		active_win = item->bar->window->active;
+        if (item->bar->parent_window != NULL)
+		active_win = item->bar->parent_window->active;
 
 	item->func(item, TRUE);
-	if (item->max_size != item->size)
+	if (item->max_size != item->size) {
+		/* item wants a new size - we'll need to redraw
+		   the statusbar to see if this is allowed */
+		/*FIXME:fprintf(stderr, "%s resizes & redraws whole statusbar", item->config->name);*/
 		statusbar_redraw(item->bar);
-	else {
+	} else {
+		/*FIXME:fprintf(stderr, "%s redrawing", item->config->name);*/
 		item->func(item, FALSE);
                 screen_refresh(NULL);
 	}
@@ -227,154 +322,630 @@ void statusbar_item_redraw(SBAR_ITEM_REC *item)
 	active_win = old_active_win;
 }
 
-static int get_last_bg(const char *str)
+static void statusbar_recalc_ypos(STATUSBAR_REC *bar)
 {
-	int last = -1;
+	GSList *tmp, *bar_group;
+        int ypos;
 
-	while (*str != '\0') {
-		if (*str == '%' && str[1] != '\0') {
-                        str++;
-			if (*str >= '0' && *str <= '7')
-				last = *str-'0';
+	/* get list of statusbars with same type and placement,
+	   sorted by position */
+        bar_group = NULL;
+	tmp = bar->config->type == STATUSBAR_TYPE_ROOT ? bar->group->bars :
+                bar->parent_window->statusbars;
+
+        for (; tmp != NULL; tmp = tmp->next) {
+		STATUSBAR_REC *rec = tmp->data;
+
+		if (rec->config->type == bar->config->type &&
+		    rec->config->placement == bar->config->placement) {
+			bar_group = g_slist_insert_sorted(bar_group, rec,
+							  (GCompareFunc)
+							  sbar_cmp_position);
 		}
-                str++;
 	}
 
-        return last;
+	if (bar_group == NULL) {
+		/* we just destroyed the last statusbar in this
+		   type/placement group */
+		return;
+	}
+
+        /* get the Y-position for the first statusbar */
+	if (bar->config->type == STATUSBAR_TYPE_ROOT) {
+		ypos = bar->config->placement == STATUSBAR_TOP ? 0 :
+			screen_height - g_slist_length(bar_group);
+	} else {
+		ypos = bar->config->placement == STATUSBAR_TOP ?
+			bar->parent_window->first_line :
+			bar->parent_window->last_line -
+			(g_slist_length(bar_group)-1);
+	}
+
+        /* set the Y-positions */
+	while (bar_group != NULL) {
+		bar = bar_group->data;
+
+		if (bar->real_ypos != ypos) {
+			bar->real_ypos = ypos;
+                        statusbar_redraw(bar);
+		}
+
+                ypos++;
+                bar_group = g_slist_remove(bar_group, bar_group->data);
+	}
 }
 
-/* ypos is used only when pos == STATUSBAR_POS_MIDDLE */
-STATUSBAR_REC *statusbar_create(int pos, int ypos)
+STATUSBAR_REC *statusbar_create(STATUSBAR_GROUP_REC *group,
+                                STATUSBAR_CONFIG_REC *config,
+                                MAIN_WINDOW_REC *parent_window)
 {
-	STATUSBAR_REC *rec;
-        char *str;
+	STATUSBAR_REC *bar;
+	THEME_REC *theme;
+        GSList *tmp;
+	char *name, *value;
+
+        g_return_val_if_fail(group != NULL, NULL);
+        g_return_val_if_fail(config != NULL, NULL);
+	g_return_val_if_fail(config->type != STATUSBAR_TYPE_WINDOW ||
+			     parent_window != NULL, NULL);
+
+	bar = g_new0(STATUSBAR_REC, 1);
+	group->bars = g_slist_append(group->bars, bar);
+
+	bar->group = group;
+
+        bar->config = config;
+        bar->parent_window = parent_window;
+
+	if (config->type == STATUSBAR_TYPE_ROOT) {
+		/* top/bottom of the screen */
+		mainwindows_reserve_lines(config->placement == STATUSBAR_TOP,
+					  config->placement == STATUSBAR_BOTTOM);
+                theme = current_theme;
+	} else {
+		/* top/bottom of the window */
+		parent_window->statusbars =
+			g_slist_append(parent_window->statusbars, bar);
+		mainwindow_set_statusbar_lines(parent_window,
+					       config->placement == STATUSBAR_TOP,
+					       config->placement == STATUSBAR_BOTTOM);
+		theme = parent_window != NULL && parent_window->active != NULL &&
+			parent_window->active->theme != NULL ?
+			parent_window->active->theme : current_theme;
+	}
 
-	rec = g_new0(STATUSBAR_REC, 1);
-	statusbars = g_slist_append(statusbars, rec);
+        /* get background color from sb_background abstract */
+        name = g_strdup_printf("{sb_%s_bg}", config->name);
+	value = theme_format_expand(theme, name);
+	g_free(name);
 
-	rec->pos = pos;
-	rec->line = pos == STATUSBAR_POS_MIDDLE ? ypos :
-		mainwindows_reserve_lines(1, pos == STATUSBAR_POS_UP);
-	rec->ypos = pos == STATUSBAR_POS_MIDDLE ? ypos :
-		pos == STATUSBAR_POS_UP ? rec->line :
-		screen_height-1-rec->line;
+	if (*value == '\0') {
+                /* try with the statusbar group name */
+		g_free(value);
 
-        /* get background color from sb_background abstract */
-	str = theme_format_expand(current_theme, "{sb_background}");
-	if (str == NULL) str = g_strdup("%n%8");
-	rec->color_string = g_strconcat("%n", str, NULL);
-        g_free(str);
+		name = g_strdup_printf("{sb_%s_bg}", group->name);
+		value = theme_format_expand(theme, name);
+		g_free(name);
+	}
 
-	rec->color = get_last_bg(rec->color_string);
-        if (rec->color < 0) rec->color = current_theme->default_real_color;
+	if (*value == '\0') {
+                g_free(value);
+		value = g_strdup("%8");
+	}
+	bar->color = g_strconcat("%n", value, NULL);
+	g_free(value);
+
+        statusbar_recalc_ypos(bar);
+        signal_emit("statusbar created", 1, bar);
 
-	if (pos == STATUSBAR_POS_UP) {
-                if (sbars_up == 0) sbar_uppest = rec->line;
-                sbars_up++;
-		rec->line -= sbar_uppest;
-	} else if (pos == STATUSBAR_POS_DOWN) {
-		if (sbars_down == 0) sbar_lowest = rec->line;
-		sbars_down++;
-		rec->line -= sbar_lowest;
+        /* create the items to statusbar */
+	for (tmp = config->items; tmp != NULL; tmp = tmp->next) {
+		SBAR_ITEM_CONFIG_REC *rec = tmp->data;
+
+                statusbar_item_create(bar, rec);
 	}
+	return bar;
+}
 
-	screen_set_bg(screen_root, backs[rec->color] << 4);
-	screen_move(screen_root, 0, rec->ypos);
-	screen_clrtoeol(screen_root);
-	screen_set_bg(screen_root, 0);
+void statusbar_destroy(STATUSBAR_REC *bar)
+{
+	int top;
 
-	return rec;
+	g_return_if_fail(bar != NULL);
+
+	bar->group->bars = g_slist_remove(bar->group->bars, bar);
+	if (bar->parent_window != NULL) {
+		bar->parent_window->statusbars =
+			g_slist_remove(bar->parent_window->statusbars, bar);
+	}
+
+        signal_emit("statusbar destroyed", 1, bar);
+
+	while (bar->items != NULL)
+		statusbar_item_destroy(bar->items->data);
+
+        g_free(bar->color);
+
+	if (bar->config->type != STATUSBAR_TYPE_WINDOW ||
+	    bar->parent_window != NULL)
+		statusbar_recalc_ypos(bar);
+
+	top = bar->config->placement == STATUSBAR_TOP;
+	if (bar->config->type == STATUSBAR_TYPE_ROOT) {
+		/* top/bottom of the screen */
+		mainwindows_reserve_lines(top ? -1 : 0, !top ? -1 : 0);
+	} else if (bar->parent_window != NULL) {
+		/* top/bottom of the window */
+		mainwindow_set_statusbar_lines(bar->parent_window,
+					       top ? -1 : 0, !top ? -1 : 0);
+	}
+
+	g_free(bar);
 }
 
-static void statusbars_pack(int pos, int line)
+STATUSBAR_REC *statusbar_find(STATUSBAR_GROUP_REC *group, const char *name,
+			      MAIN_WINDOW_REC *window)
 {
 	GSList *tmp;
 
-	for (tmp = statusbars; tmp != NULL; tmp = tmp->next) {
+	for (tmp = group->bars; tmp != NULL; tmp = tmp->next) {
 		STATUSBAR_REC *rec = tmp->data;
 
-		if (rec->pos == pos && rec->line > line) {
-			rec->line--;
-			rec->ypos += (pos == STATUSBAR_POS_UP ? -1 : 1);
+		if (rec->parent_window == window &&
+		    strcmp(rec->config->name, name) == 0)
+                        return rec;
+	}
+
+        return NULL;
+}
+
+static char *update_statusbar_bg(const char *str, const char *color)
+{
+	GString *out;
+        char *ret;
+
+	out = g_string_new(color);
+	while (*str != '\0') {
+		if (*str == '%' && str[1] == 'n') {
+                        g_string_append(out, color);
+			str += 2;
+                        continue;
 		}
+
+		g_string_append_c(out, *str);
+                str++;
 	}
+
+        ret = out->str;
+        g_string_free(out, FALSE);
+        return ret;
 }
 
-void statusbar_destroy(STATUSBAR_REC *bar)
+const char *statusbar_item_get_value(SBAR_ITEM_REC *item)
 {
-	g_return_if_fail(bar != NULL);
+	const char *value;
 
-	if (bar->pos != STATUSBAR_POS_MIDDLE)
-		mainwindows_reserve_lines(-1, bar->pos == STATUSBAR_POS_UP);
+	value = item->config->value;
+	if (value == NULL) {
+		value = g_hash_table_lookup(sbar_item_defs,
+					    item->config->name);
+	}
 
-	if (bar->pos == STATUSBAR_POS_UP) sbars_up--;
-	if (bar->pos == STATUSBAR_POS_DOWN) sbars_down--;
-        statusbars = g_slist_remove(statusbars, bar);
+        return value;
+}
 
-	while (bar->items != NULL)
-		statusbar_item_destroy(bar->items->data);
+void statusbar_item_default_handler(SBAR_ITEM_REC *item, int get_size_only,
+				    const char *str, const char *data,
+				    int escape_vars)
+{
+	SERVER_REC *server;
+	WI_ITEM_REC *wiitem;
+        char *tmpstr, *tmpstr2;
+	int len;
+
+	if (str == NULL)
+		str = statusbar_item_get_value(item);
+	if (str == NULL || *str == '\0') {
+		item->min_size = item->max_size = 0;
+		return;
+	}
 
-	if (bar->pos != STATUSBAR_POS_MIDDLE)
-		statusbars_pack(bar->pos, bar->pos);
-        g_free(bar->color_string);
-	g_free(bar);
+	if (active_win == NULL) {
+		server = NULL;
+                wiitem = NULL;
+	} else {
+		server = active_win->active_server;
+                wiitem = active_win->active;
+	}
+
+	/* expand $variables */
+	tmpstr = parse_special_string(str, server, wiitem, data, NULL,
+				      (escape_vars ? PARSE_FLAG_ESCAPE_VARS : 0 ) |
+				      PARSE_FLAG_ESCAPE_THEME);
+
+	/* expand templates */
+        str = tmpstr;
+	tmpstr2 = theme_format_expand_data(current_theme, &str,
+					   'n', 'n',
+					   NULL, NULL,
+					   EXPAND_FLAG_ROOT |
+					   EXPAND_FLAG_IGNORE_REPLACES |
+					   EXPAND_FLAG_IGNORE_EMPTY);
+	g_free(tmpstr);
+
+	/* remove color codes (not %formats) */
+	tmpstr = strip_codes(tmpstr2);
+        g_free(tmpstr2);
+
+	if (get_size_only) {
+		item->min_size = item->max_size = format_get_length(tmpstr);
+	} else {
+		if (item->size < item->min_size) {
+                        /* they're forcing us smaller than minimum size.. */
+			len = format_real_length(tmpstr, item->size);
+                        tmpstr[len] = '\0';
+		}
+
+		tmpstr2 = update_statusbar_bg(tmpstr, item->bar->color);
+		gui_printtext(item->xpos, item->bar->real_ypos, tmpstr2);
+                g_free(tmpstr2);
+	}
+	g_free(tmpstr);
+}
 
-	if (!quitting) statusbar_redraw_all();
+static void statusbar_item_default_func(SBAR_ITEM_REC *item, int get_size_only)
+{
+	statusbar_item_default_handler(item, get_size_only, NULL, "", TRUE);
+}
+
+static void statusbar_update_item(void)
+{
+	GSList *items;
+
+	items = g_hash_table_lookup(sbar_signal_items,
+				    GINT_TO_POINTER(signal_get_emitted_id()));
+	while (items != NULL) {
+		SBAR_ITEM_REC *item = items->data;
+
+		statusbar_item_redraw(item);
+		items = items->next;
+	}
+}
+
+static void statusbar_update_server(SERVER_REC *server)
+{
+        SERVER_REC *item_server;
+	GSList *items;
+
+	items = g_hash_table_lookup(sbar_signal_items,
+				    GINT_TO_POINTER(signal_get_emitted_id()));
+	while (items != NULL) {
+		SBAR_ITEM_REC *item = items->data;
+
+		item_server = item->bar->parent_window != NULL ?
+			item->bar->parent_window->active->active_server :
+			active_win->active_server;
+
+		if (item_server == server)
+			statusbar_item_redraw(item);
+
+		items = items->next;
+	}
+}
+
+static void statusbar_update_window(WINDOW_REC *window)
+{
+        WINDOW_REC *item_window;
+	GSList *items;
+
+	items = g_hash_table_lookup(sbar_signal_items,
+				    GINT_TO_POINTER(signal_get_emitted_id()));
+	while (items != NULL) {
+		SBAR_ITEM_REC *item = items->data;
+
+		item_window = item->bar->parent_window != NULL ?
+			item->bar->parent_window->active : active_win;
+
+		if (item_window == window)
+			statusbar_item_redraw(item);
+
+		items = items->next;
+	}
+}
+
+static void statusbar_update_window_item(WI_ITEM_REC *wiitem)
+{
+        WI_ITEM_REC *item_wi;
+	GSList *items;
+
+	items = g_hash_table_lookup(sbar_signal_items,
+				    GINT_TO_POINTER(signal_get_emitted_id()));
+	while (items != NULL) {
+		SBAR_ITEM_REC *item = items->data;
+
+		item_wi = item->bar->parent_window != NULL ?
+			item->bar->parent_window->active->active :
+			active_win->active;
+
+		if (item_wi == wiitem)
+			statusbar_item_redraw(item);
+
+		items = items->next;
+	}
+}
+
+static void statusbar_item_default_signals(SBAR_ITEM_REC *item)
+{
+	SIGNAL_FUNC func;
+        GSList *list;
+	const char *value;
+        void *signal_id;
+        int *signals, *pos;
+
+	value = statusbar_item_get_value(item);
+	if (value == NULL)
+		return;
+
+	signals = special_vars_get_signals(value);
+	if (signals == NULL)
+		return;
+
+	for (pos = signals; *pos != -1; pos += 2) {
+		/* update signal -> item mappings */
+                signal_id = GINT_TO_POINTER(*pos);
+		list = g_hash_table_lookup(sbar_signal_items, signal_id);
+		if (list == NULL) {
+			switch (pos[1]) {
+			case EXPANDO_ARG_NONE:
+				func = (SIGNAL_FUNC) statusbar_update_item;
+				break;
+			case EXPANDO_ARG_SERVER:
+				func = (SIGNAL_FUNC) statusbar_update_server;
+				break;
+			case EXPANDO_ARG_WINDOW:
+				func = (SIGNAL_FUNC) statusbar_update_window;
+				break;
+			case EXPANDO_ARG_WINDOW_ITEM:
+				func = (SIGNAL_FUNC) statusbar_update_window_item;
+				break;
+			default:
+                                func = NULL;
+                                break;
+			}
+                        if (func != NULL)
+				signal_add_to_id(MODULE_NAME, 1, *pos, func);
+		}
+
+		if (g_slist_find(list, item) == NULL)
+			list = g_slist_append(list, item);
+		g_hash_table_insert(sbar_signal_items, signal_id, list);
+
+                /* update item -> signal mappings */
+		list = g_hash_table_lookup(sbar_item_signals, item);
+                if (g_slist_find(list, signal_id) == NULL)
+			list = g_slist_append(list, signal_id);
+		g_hash_table_insert(sbar_item_signals, item, list);
+	}
+        g_free(signals);
 }
 
 SBAR_ITEM_REC *statusbar_item_create(STATUSBAR_REC *bar,
-				     int priority, int right_justify,
-				     STATUSBAR_FUNC func)
+				     SBAR_ITEM_CONFIG_REC *config)
 {
 	SBAR_ITEM_REC *rec;
 
 	g_return_val_if_fail(bar != NULL, NULL);
-	g_return_val_if_fail(func != NULL, NULL);
+	g_return_val_if_fail(config != NULL, NULL);
 
 	rec = g_new0(SBAR_ITEM_REC, 1);
-	rec->bar = bar;
 	bar->items = g_slist_append(bar->items, rec);
 
-        rec->priority = priority;
-	rec->right_justify = right_justify;
-	rec->func = func;
+	rec->bar = bar;
+	rec->config = config;
+
+	rec->func = g_hash_table_lookup(sbar_item_funcs, config->name);
+	if (rec->func == NULL)
+		rec->func = statusbar_item_default_func;
+	statusbar_item_default_signals(rec);
 
+        signal_emit("statusbar item created", 1, rec);
 	return rec;
 }
 
-void statusbar_item_remove(SBAR_ITEM_REC *item)
+static void statusbar_signal_remove(int signal_id)
+{
+	signal_remove_id(signal_id, (SIGNAL_FUNC) statusbar_update_item);
+	signal_remove_id(signal_id, (SIGNAL_FUNC) statusbar_update_server);
+	signal_remove_id(signal_id, (SIGNAL_FUNC) statusbar_update_window);
+	signal_remove_id(signal_id, (SIGNAL_FUNC) statusbar_update_window_item);
+}
+
+static void statusbar_item_remove_signal(SBAR_ITEM_REC *item, int signal_id)
 {
+	GSList *list;
+
+        /* update signal -> item hash */
+	list = g_hash_table_lookup(sbar_signal_items,
+				   GINT_TO_POINTER(signal_id));
+	list = g_slist_remove(list, item);
+	if (list != NULL) {
+		g_hash_table_insert(sbar_signal_items,
+				    GINT_TO_POINTER(signal_id), list);
+	} else {
+		g_hash_table_remove(sbar_signal_items,
+				    GINT_TO_POINTER(signal_id));
+                statusbar_signal_remove(signal_id);
+	}
+}
+
+void statusbar_item_destroy(SBAR_ITEM_REC *item)
+{
+	GSList *list;
+
 	g_return_if_fail(item != NULL);
 
-	statusbar_item_destroy(item);
-	if (!quitting) statusbar_redraw_all();
+	item->bar->items = g_slist_remove(item->bar->items, item);
+        signal_emit("statusbar item destroyed", 1, item);
+
+	list = g_hash_table_lookup(sbar_item_signals, item);
+        g_hash_table_remove(sbar_item_signals, item);
+
+	while (list != NULL) {
+                statusbar_item_remove_signal(item, GPOINTER_TO_INT(list->data));
+		list = g_slist_remove(list, list->data);
+	}
+
+	g_free(item);
+}
+
+static void mainwindow_recalc_ypos(MAIN_WINDOW_REC *window, int placement)
+{
+	GSList *tmp;
+
+	for (tmp = window->statusbars; tmp != NULL; tmp = tmp->next) {
+		STATUSBAR_REC *bar = tmp->data;
+
+		if (bar->config->placement == placement) {
+			statusbar_recalc_ypos(bar);
+                        break;
+		}
+	}
 }
 
 static void sig_mainwindow_resized(MAIN_WINDOW_REC *window)
 {
-	STATUSBAR_REC *rec;
+        mainwindow_recalc_ypos(window, STATUSBAR_TOP);
+        mainwindow_recalc_ypos(window, STATUSBAR_BOTTOM);
+}
+
+#define STATUSBAR_IS_VISIBLE(bar, window) \
+	((bar)->visible == STATUSBAR_VISIBLE_ALWAYS || \
+	(active_mainwin == (window) && \
+	 (bar)->visible == STATUSBAR_VISIBLE_ACTIVE) || \
+	(active_mainwin != (window) && \
+	 (bar)->visible == STATUSBAR_VISIBLE_INACTIVE))
+
+static void statusbars_remove_unvisible(MAIN_WINDOW_REC *window)
+{
+	GSList *tmp, *next;
+
+	for (tmp = window->statusbars; tmp != NULL; tmp = next) {
+		STATUSBAR_REC *bar = tmp->data;
+
+		next = tmp->next;
+                if (!STATUSBAR_IS_VISIBLE(bar->config, window))
+                        statusbar_destroy(bar);
+	}
+}
+
+static void statusbars_add_visible(MAIN_WINDOW_REC *window)
+{
+	STATUSBAR_GROUP_REC *group;
+        STATUSBAR_REC *bar;
+	GSList *tmp;
+
+        group = active_statusbar_group;
+	for (tmp = group->config_bars; tmp != NULL; tmp = tmp->next) {
+		STATUSBAR_CONFIG_REC *config = tmp->data;
+
+		if (config->type == STATUSBAR_TYPE_WINDOW &&
+		    STATUSBAR_IS_VISIBLE(config, window) &&
+		    statusbar_find(group, config->name, window) == NULL) {
+			bar = statusbar_create(group, config, window);
+			statusbar_redraw(bar);
+		}
+	}
+}
+
+static void sig_mainwindow_destroyed(MAIN_WINDOW_REC *window)
+{
+	while (window->statusbars != NULL) {
+		STATUSBAR_REC *bar = window->statusbars->data;
+
+		bar->parent_window->statusbars =
+			g_slist_remove(bar->parent_window->statusbars, bar);
+		bar->parent_window = NULL;
+		statusbar_destroy(bar);
+	}
+}
+
+static void sig_window_changed(void)
+{
+	GSList *tmp;
 
-	rec = window->statusbar;
-        rec->ypos = window->first_line+window->height;
+	for (tmp = mainwindows; tmp != NULL; tmp = tmp->next) {
+		MAIN_WINDOW_REC *rec = tmp->data;
+
+		statusbars_remove_unvisible(rec);
+                statusbars_add_visible(rec);
+	}
+}
+
+static void statusbar_item_def_destroy(void *key, void *value)
+{
+	g_free(key);
+        g_free(value);
+}
+
+static void statusbar_signal_item_destroy(void *key, GSList *value)
+{
+	while (value != NULL) {
+		statusbar_signal_remove(GPOINTER_TO_INT(value->data));
+                value->data = g_slist_remove(value, value->data);
+	}
+}
+
+static void statusbar_item_signal_destroy(void *key, GSList *value)
+{
+        g_slist_free(value);
 }
 
 void statusbar_init(void)
 {
-	statusbars = NULL;
-	sbars_up = sbars_down = 0;
+	statusbar_groups = NULL;
+	active_statusbar_group = NULL;
+	sbar_item_defs = g_hash_table_new((GHashFunc) g_str_hash,
+					       (GCompareFunc) g_str_equal);
+	sbar_item_funcs = g_hash_table_new((GHashFunc) g_str_hash,
+					   (GCompareFunc) g_str_equal);
+	sbar_signal_items = g_hash_table_new((GHashFunc) g_direct_hash,
+					     (GCompareFunc) g_direct_equal);
+	sbar_item_signals = g_hash_table_new((GHashFunc) g_direct_hash,
+					     (GCompareFunc) g_direct_equal);
 
 	statusbar_items_init();
+	statusbar_config_init();
+
 	signal_add("mainwindow resized", (SIGNAL_FUNC) sig_mainwindow_resized);
 	signal_add("mainwindow moved", (SIGNAL_FUNC) sig_mainwindow_resized);
+	signal_add("window changed", (SIGNAL_FUNC) sig_window_changed);
+	signal_add("mainwindow destroyed", (SIGNAL_FUNC) sig_mainwindow_destroyed);
 }
 
 void statusbar_deinit(void)
 {
-	statusbar_items_deinit();
+	while (statusbar_groups != NULL)
+		statusbar_group_destroy(statusbar_groups->data);
+
+	g_hash_table_foreach(sbar_item_defs,
+			     (GHFunc) statusbar_item_def_destroy, NULL);
+	g_hash_table_destroy(sbar_item_defs);
 
-	while (statusbars != NULL)
-		statusbar_destroy(statusbars->data);
+	g_hash_table_foreach(sbar_item_funcs, (GHFunc) g_free, NULL);
+	g_hash_table_destroy(sbar_item_funcs);
+
+	g_hash_table_foreach(sbar_signal_items,
+			     (GHFunc) statusbar_signal_item_destroy, NULL);
+	g_hash_table_destroy(sbar_signal_items);
+	g_hash_table_foreach(sbar_item_signals,
+			     (GHFunc) statusbar_item_signal_destroy, NULL);
+	g_hash_table_destroy(sbar_item_signals);
 
 	signal_remove("mainwindow resized", (SIGNAL_FUNC) sig_mainwindow_resized);
 	signal_remove("mainwindow moved", (SIGNAL_FUNC) sig_mainwindow_resized);
+	signal_remove("window changed", (SIGNAL_FUNC) sig_window_changed);
+	signal_remove("mainwindow destroyed", (SIGNAL_FUNC) sig_mainwindow_destroyed);
+
+	statusbar_items_deinit();
+	statusbar_config_deinit();
 }