Imported Upstream version 20090110

[ion3.git] / ioncore / stacking.c

diff --git a/ioncore/stacking.c b/ioncore/stacking.c
index c96c5387c1a914980754302389f66d95cd6259b6..0c6480d7b5331ecc7479ca59b16dd6a22f1a6360 100644 (file)
--- a/ioncore/stacking.c
+++ b/ioncore/stacking.c
@@ -1,7 +1,7 @@
 /*
  * ion/ioncore/stacking.c
  *
- * Copyright (c) Tuomo Valkonen 1999-2007.
+ * Copyright (c) Tuomo Valkonen 1999-2009.
  *
  * See the included file LICENSE for details.
  */
@@ -596,6 +596,12 @@ static bool mapped_filt(WStacking *st, void *unused)
 }
 
 
+static bool mapped_filt_neq(WStacking *st, void *st_neq)
+{
+    return (st!=(WStacking*)st_neq && mapped_filt(st, NULL));
+}
+
+
 static bool mgr_filt(WStacking *st, void *mgr_)
 {
     return (st->reg!=NULL && REGION_MANAGER(st->reg)==(WRegion*)mgr_);
@@ -622,5 +628,16 @@ uint stacking_min_level_mapped(WStacking *stacking)
 }
 
 
+bool stacking_must_focus(WStacking *stacking, WStacking *st)
+{
+    WStacking *stf=stacking_find_to_focus(stacking, NULL, 
+                                          mapped_filt_neq, NULL, st);
+    
+    return (stf==NULL || 
+            (st->level>stf->level &&
+             st->level>=STACKING_LEVEL_MODAL1));
+}
+
+
 /*}}}*/