X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fquadtree.h;h=9a7b8f97673dd7b3c4a45b09fd59981727236d08;hp=61f0a1be8d967e5bc8c2407eb6903f8ef4f8aab0;hb=b716ae547424e4e4bbda86781a151c31e3a64e67;hpb=b2d6929dfb8cd94c0447b350c9bafaa573a4a834

diff --git a/src/quadtree.h b/src/quadtree.h
index 61f0a1b..9a7b8f9 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 +40,11 @@ namespace IPDF
 		unsigned object_begin;
 		// Last object in the node.
 		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;
+		bool render_dirty;
 	};
 
 	struct QuadTree
@@ -46,10 +52,15 @@ namespace IPDF
 		QuadTree() : root_id(QUADTREE_EMPTY) {}
 		QuadTreeIndex root_id;
 		std::vector<QuadTreeNode> nodes;
+
+		QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir, Document *doc) const;
+		void GetCanonicalCoords(QuadTreeIndex& start, Real& x, Real& y, Document *doc);
+
 	};
 
 	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);
 }