libgui|Atlas: Added OutOfSpace audience

Notified when allocation of an image fails.
skyjake · Jul 4, 2013 · 199409d · 199409d
1 parent 5c0a841
commit 199409d
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Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/doomsday/libgui/include/de/gui/atlas.h b/doomsday/libgui/include/de/gui/atlas.h
@@ -111,6 +111,12 @@ class LIBGUI_PUBLIC Atlas : public Lockable
      */
     DENG2_DEFINE_AUDIENCE(Reposition, void atlasContentRepositioned(Atlas &))
 
+    /**
+     * Audience that will be notified when an allocation fails due to the atlas
+     * being so full that there is no room for the new image.
+     */
+    DENG2_DEFINE_AUDIENCE(OutOfSpace, void atlasOutOfSpace(Atlas &))
+
 public:
     /**
      * Constructs a new atlas.

diff --git a/doomsday/libgui/src/atlas.cpp b/doomsday/libgui/src/atlas.cpp
@@ -251,6 +251,11 @@ Id Atlas::alloc(Image const &image)
     else
     {
         LOG_DEBUG("Atlas is full with %.1f%% usage") << d->usedPercentage()*100;
+
+        DENG2_FOR_AUDIENCE(OutOfSpace, i)
+        {
+            i->atlasOutOfSpace(*this);
+        }
     }
     return id;
 }