X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fquadtree.h;h=1c1c0254c6441d289cbdde2daba561ec21057973;hp=29d60ba9553dbdf9edbae085f67f08631f3aa3aa;hb=58a6719da2337b3e6e20b581885f170bbe5fc480;hpb=836513d7874d20bec7247c6dfa8b3d2c426a71d4;ds=sidebyside

diff --git a/src/quadtree.h b/src/quadtree.h
index 29d60ba..1c1c025 100644
--- a/src/quadtree.h
+++ b/src/quadtree.h
@@ -39,6 +39,8 @@ namespace IPDF
 		unsigned object_begin;
 		// Last object in the node.
 		unsigned object_end;
+		// Linked list of "extra" nodes
+		QuadTreeIndex next_overlay;
 	};
 
 	struct QuadTree
@@ -46,10 +48,15 @@ namespace IPDF
 		QuadTree() : root_id(QUADTREE_EMPTY) {}
 		QuadTreeIndex root_id;
 		std::vector<QuadTreeNode> nodes;
+
+		QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir) const;
+
 	};
 
 	Rect TransformToQuadChild(const Rect& src, QuadTreeNodeChildren child_type);
 	Rect TransformFromQuadChild(const Rect& src, QuadTreeNodeChildren child_type);
+	bool IntersectsQuadChild(const Rect& src, QuadTreeNodeChildren child_type);
+	bool ContainedInQuadChild(const Rect& src, QuadTreeNodeChildren child_type);
 }
 
 #else