Invalid array indices are not cool

[ipdf/code.git] / src / quadtree.h

diff --git a/src/quadtree.h b/src/quadtree.h
index 1c1c025..15fd8a9 100644 (file)
--- a/src/quadtree.h
+++ b/src/quadtree.h
@@ -13,6 +13,7 @@ namespace IPDF
 
        typedef int QuadTreeIndex;
        static const QuadTreeIndex QUADTREE_EMPTY = -1;
+       class Document;
 
        enum QuadTreeNodeChildren
        {
@@ -41,6 +42,8 @@ namespace IPDF
                unsigned object_end;
                // Linked list of "extra" nodes
                QuadTreeIndex next_overlay;
+               // First object which has not yet been propagated to extant children/parent.
+               unsigned object_dirty;
        };
 
        struct QuadTree
@@ -49,7 +52,7 @@ namespace IPDF
                QuadTreeIndex root_id;
                std::vector<QuadTreeNode> nodes;
 
-               QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir) const;
+               QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir, Document *doc) const;
 
        };