1 files changed, 113 insertions, 0 deletions
diff --git a/src/Skeleton_blocker/include/gudhi/Skeleton_blocker/Skeleton_blocker_complex_visitor.h b/src/Skeleton_blocker/include/gudhi/Skeleton_blocker/Skeleton_blocker_complex_visitor.h
new file mode 100644
index 00000000..4475afcc
--- /dev/null
+++ b/src/Skeleton_blocker/include/gudhi/Skeleton_blocker/Skeleton_blocker_complex_visitor.h
@@ -0,0 +1,113 @@
+/*
+ * ComplexVisitor.h
+ *
+ *  Created on: Dec 11, 2013
+ *      Author: dsalinas
+ */
+
+#ifndef GUDHI_COMPLEXVISITOR_H_
+#define GUDHI_COMPLEXVISITOR_H_
+
+
+#include "gudhi/Skeleton_blocker/Skeleton_blocker_simplex.h"
+
+namespace Gudhi{
+
+namespace skbl {
+// todo rajouter les const
+
+/**
+ *@class Skeleton_blocker_complex_visitor
+ *@brief Interface for a visitor of a simplicial complex.
+ */
+template <typename Vertex_handle>
+class Skeleton_blocker_complex_visitor {
+public:
+	virtual ~Skeleton_blocker_complex_visitor(){};
+
+	virtual void on_add_vertex(Vertex_handle) = 0;
+	virtual void on_remove_vertex(Vertex_handle) = 0;
+
+	virtual void on_add_edge(Vertex_handle a,Vertex_handle b) = 0;
+	virtual void on_remove_edge(Vertex_handle a,Vertex_handle b) = 0;
+
+	/**
+	 * @brief Called when an edge changes, during the contraction of
+	 * an edge
+	 */
+	virtual void on_changed_edge(Vertex_handle a,Vertex_handle b) = 0;
+
+	/**
+	 * @brief Called when performing an edge contraction when
+	 * an edge bx is replaced by an edge ax (not already present).
+	 * Precisely, this methods is called this way in contract_edge :
+	 * add_edge(a,x)
+	 * on_swaped_edge(a,b,x)
+	 * remove_edge(b,x)
+	 */
+	virtual void on_swaped_edge(Vertex_handle a,Vertex_handle b,Vertex_handle x)=0;
+	virtual void on_add_blocker(const Skeleton_blocker_simplex<Vertex_handle>&) = 0;
+	virtual void on_delete_blocker(const Skeleton_blocker_simplex<Vertex_handle>*) = 0;
+};
+
+
+/**
+ *@class Dummy_complex_visitor
+ *@brief A dummy visitor of a simplicial complex that does nothing
+ *
+ */
+template <typename Vertex_handle>
+class Dummy_complex_visitor  : public Skeleton_blocker_complex_visitor<Vertex_handle>{
+public:
+	void on_add_vertex(Vertex_handle) {}
+	void on_remove_vertex(Vertex_handle){}
+	void on_add_edge(Vertex_handle a,Vertex_handle b){}
+	void on_remove_edge(Vertex_handle a,Vertex_handle b){}
+	void on_changed_edge(Vertex_handle a,Vertex_handle b){}
+	void on_swaped_edge(Vertex_handle a,Vertex_handle b,Vertex_handle x){}
+	void on_add_blocker(const Skeleton_blocker_simplex<Vertex_handle>&){}
+	void on_delete_blocker(const Skeleton_blocker_simplex<Vertex_handle>*){}
+
+};
+
+
+
+/**
+ *@class Print_complex_visitor
+ *@brief A visitor that prints the visit information.
+ *
+ */
+template <typename Vertex_handle>
+class Print_complex_visitor  : public  Skeleton_blocker_complex_visitor<Vertex_handle>{
+public:
+	void on_add_vertex(Vertex_handle v) {
+		std::cerr << "on_add_vertex:"<<v<<std::endl;
+	}
+	void on_remove_vertex(Vertex_handle v){
+		std::cerr << "on_remove_vertex:"<<v<<std::endl;
+	}
+	void on_add_edge(Vertex_handle a,Vertex_handle b){
+		std::cerr << "on_add_edge:"<<a<<","<<b<<std::endl;
+	}
+	void on_remove_edge(Vertex_handle a,Vertex_handle b){
+		std::cerr << "on_remove_edge:"<<a<<","<<b<<std::endl;
+	}
+	void on_changed_edge(Vertex_handle a,Vertex_handle b){
+		std::cerr << "on_changed_edge:"<<a<<","<<b<<std::endl;
+	}
+	void on_swaped_edge(Vertex_handle a,Vertex_handle b,Vertex_handle x){
+			std::cerr << "on_swaped_edge:"<<a<<","<<b<<","<<x<<std::endl;
+	}
+	void on_add_blocker(const Skeleton_blocker_simplex<Vertex_handle>& b){
+		std::cerr << "on_add_blocker:"<<b<<std::endl;
+	}
+	void on_delete_blocker(const Skeleton_blocker_simplex<Vertex_handle>* b){
+		std::cerr << "on_delete_blocker:"<<b<<std::endl;
+	}
+};
+
+}
+
+}  // namespace GUDHI
+
+#endif /* GUDHI_COMPLEXVISITOR_H_ */