X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fquadtree.h;h=e35da2eab45182aba96509edd40f9b6cd3409b9a;hp=671ee0fdf5e987d28143574914ebf7530aaa0599;hb=64b7c42c71c35d520424cf4ca5ecaa99faef8b26;hpb=35e4687acd16a28fc923a75d254cdb4fd2fbc524

diff --git a/src/quadtree.h b/src/quadtree.h
index 671ee0f..e35da2e 100644
--- a/src/quadtree.h
+++ b/src/quadtree.h
@@ -6,12 +6,14 @@
 
 
 #include "common.h"
+#include "ipdf.h"
 
 namespace IPDF
 {
 
 	typedef int QuadTreeIndex;
 	static const QuadTreeIndex QUADTREE_EMPTY = -1;
+	class Document;
 
 	enum QuadTreeNodeChildren
 	{
@@ -38,13 +40,24 @@ namespace IPDF
 		unsigned object_begin;
 		// Last object in the node.
 		unsigned object_end;
+		// Linked list of "extra" nodes
+		QuadTreeIndex next_overlay;
 	};
 
 	struct QuadTree
 	{
+		QuadTree() : root_id(QUADTREE_EMPTY) {}
 		QuadTreeIndex root_id;
 		std::vector<QuadTreeNode> nodes;
+
+		QuadTreeIndex GetNeighbour(QuadTreeIndex start, int xdir, int ydir, Document *doc) 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