X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fquadtree.h;h=e35da2eab45182aba96509edd40f9b6cd3409b9a;hp=ac0214685a2a44e888976fdc5f87395c64ba1353;hb=64b7c42c71c35d520424cf4ca5ecaa99faef8b26;hpb=0b655cc25b8ed09752296e4df67e7adcec5a5003

diff --git a/src/quadtree.h b/src/quadtree.h
index ac02146..e35da2e 100644
--- 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
 	{
@@ -39,6 +40,8 @@ namespace IPDF
 		unsigned object_begin;
 		// Last object in the node.
 		unsigned object_end;
+		// Linked list of "extra" nodes
+		QuadTreeIndex next_overlay;
 	};
 
 	struct QuadTree
@@ -47,7 +50,7 @@ namespace IPDF
 		QuadTreeIndex root_id;
 		std::vector<QuadTreeNode> nodes;
 
-		QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir);
+		QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir, Document *doc) const;
 
 	};