view_rtree: Map maximum BBOX2I onto maximum rtree

When re-drawing or re-caching all items, we need to search the full
rtree, including for those items that live outside of the limits of
BBOX2I.  This forces the maximum BBOX2I to the full RTree limits

include/view/view_rtree.h

@@ -79,8 +79,21 @@ public:
     template <class Visitor>
     void Query( const BOX2I& aBounds, Visitor& aVisitor )    // const
     {
-        const int   mmin[2] = { aBounds.GetX(), aBounds.GetY() };
-        const int   mmax[2] = { aBounds.GetRight(), aBounds.GetBottom() };
+        int   mmin[2] = { aBounds.GetX(), aBounds.GetY() };
+        int   mmax[2] = { aBounds.GetRight(), aBounds.GetBottom() };
+
+        // We frequently use the maximum bounding box to recache all items
+        // or for any item that overflows the integer width limits of BBOX2I
+        // in this case, we search the full rtree whose bounds are absolute
+        // coordinates rather than relative
+        BOX2I max_box;
+        max_box.SetMaximum();
+
+        if( aBounds == max_box )
+        {
+            mmin[0] = mmin[1] = INT_MIN;
+            mmax[0] = mmax[1] = INT_MAX;
+        }
 
         VIEW_RTREE_BASE::Search( mmin, mmax, aVisitor );
     }