From 14cce1cb74c2924e76fdee467ef06b5775c76421 Mon Sep 17 00:00:00 2001
From: cos <cos>
Date: Wed, 15 May 2013 23:26:11 +0200
Subject: Add initial cmd_gnumber implementation.

---
 src/actions.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/actions.h |  1 +
 src/group.c   | 27 ++++++++++++++++++++++++++-
 src/group.h   |  4 ++++
 4 files changed, 89 insertions(+), 1 deletion(-)

diff --git a/src/actions.c b/src/actions.c
index e31df72..ee3efc9 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -261,6 +261,9 @@ init_user_commands(void)
                "Name: ", arg_STRING);
   add_command ("gnewbg",        cmd_gnewbg,     1, 1, 1,
                "Name: ", arg_STRING);
+  add_command ("gnumber",       cmd_gnumber,    2, 1, 1,
+               "Number: ", arg_NUMBER,
+               "Number: ", arg_NUMBER);
   add_command ("grename",       cmd_grename,    1, 1, 1,
                "Change group name to: ", arg_REST);
   add_command ("gnext",         cmd_gnext,      0, 0, 0);
@@ -5076,6 +5079,61 @@ cmd_gnewbg (int interactive UNUSED, struct cmdarg **args)
   return cmdret_new (RET_SUCCESS, NULL);
 }
 
+cmdret *
+cmd_gnumber (int interactive UNUSED, struct cmdarg **args)
+{
+  int old_number, new_number;
+  rp_group *other_g, *g;
+
+  struct numset *g_numset = group_get_numset();
+
+/* FIXME Implement this. */
+//  if (args[0] == NULL)
+//    {
+//      /* XXX: Fix this. */
+//      print_window_information (rp_current_group, current_window());
+//      return cmdret_new (RET_SUCCESS, NULL);
+//    }
+
+  /* Gather the args. */
+  new_number = ARG(0,number);
+  if (args[1])
+    g = groups_find_group_by_number (ARG(1,number));
+  else
+    g = rp_current_group;
+
+  /* Make the switch. */
+  if (new_number >= 0 && g)
+    {
+      /* Find other window with same number and give it old number. */
+      other_g = groups_find_group_by_number (new_number);
+      if (other_g != NULL)
+        {
+          old_number = g->number;
+          other_g->number = old_number;
+
+          /* Resort the window in the list */
+          group_resort_group (other_g);
+        }
+      else
+        {
+          numset_release (g_numset, g->number);
+        }
+
+      g->number = new_number;
+      numset_add_num (g_numset, new_number);
+
+      /* resort the the window in the list */
+      group_resort_group (g);
+
+/* FIXME Implement updating of groups bar. */
+//      /* Update the window list. */
+//      update_window_names (win->win->scr, defaults.window_fmt);
+    }
+
+  return cmdret_new (RET_SUCCESS, NULL);
+}
+
 cmdret *
 cmd_grename (int interactive UNUSED, struct cmdarg **args)
 {
diff --git a/src/actions.h b/src/actions.h
index 5db4a56..519c1a7 100644
--- a/src/actions.h
+++ b/src/actions.h
@@ -138,6 +138,7 @@ RP_CMD (gmove);
 RP_CMD (gnew);
 RP_CMD (gnewbg);
 RP_CMD (gnext);
+RP_CMD (gnumber);
 RP_CMD (gprev);
 RP_CMD (gother);
 RP_CMD (gravity);
diff --git a/src/group.c b/src/group.c
index 872746c..e882e8d 100644
--- a/src/group.c
+++ b/src/group.c
@@ -60,6 +60,12 @@ free_groups(void)
     }
 }
 
+struct numset *
+group_get_numset(void)
+{
+  return group_numset;
+}
+
 rp_group *
 group_new (int number, char *name)
 {
@@ -100,7 +106,7 @@ group_add_new_group (char *name)
 
   list_for_each_entry (cur, &rp_groups, node)
     {
-      if(cur->number > g->number)
+      if (cur->number > g->number)
         {
           list_add_tail (&g->node, &cur->node);
           return g;
@@ -112,6 +118,25 @@ group_add_new_group (char *name)
   return g;
 }
 
+void
+group_resort_group (rp_group *g)
+{
+  rp_group *cur;
+  struct list_head *last = &rp_groups;
+
+  list_del (&g->node);
+  list_for_each_entry (cur, &rp_groups, node)
+    {
+      if (cur->number > g->number)
+        {
+          list_add (&g->node, last);
+          return;
+        }
+      last = &cur->node;
+    }
+  list_add (&g->node, last);
+}
+
 void
 group_rename (rp_group *g, char *name)
 {
diff --git a/src/group.h b/src/group.h
index 364100f..015bbac 100644
--- a/src/group.h
+++ b/src/group.h
@@ -39,6 +39,8 @@ void groups_map_window (rp_window *win);
 void group_unmap_window (rp_group *g, rp_window *win);
 void groups_unmap_window (rp_window *win);
 
+struct numset *group_get_numset (void);
+
 rp_window *group_prev_window (rp_group *g, rp_window *win);
 rp_window *group_next_window (rp_group *g, rp_window *win);
 rp_group *groups_find_group_by_name (char *s, int exact_match);
@@ -52,6 +54,8 @@ rp_group *group_prev_group (void);
 rp_group *group_next_group (void);
 rp_group *group_last_group (void);
 
+void group_resort_group (rp_group *g);
+
 rp_group *group_add_new_group (char *name);
 void group_rename (rp_group *g, char *name);
 
-- 
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