X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=src%2Fsortaction.h;h=ec9a023710961ee0978651fe46f1520d6d18039d;hb=0ced9c229cf05fa677686df27eca9f167f11a87f;hp=b6c5df74278f85d08540678674ffb6c7d384a650;hpb=47b1f5c0294e079bc120dc8366977951aa0778bf;p=germs.git

diff --git a/src/sortaction.h b/src/sortaction.h
index b6c5df7..ec9a023 100644
--- a/src/sortaction.h
+++ b/src/sortaction.h
@@ -21,20 +21,100 @@
 #ifndef __SORTACTION_H__
 #define __SORTACTION_H__
 
+#include <tr1/memory>
+#include <string>
+class GeneOrder;
+
+
+/**
+ * Abstraction for a sort action implementation, this is the base that other
+ * actions inherits from.
+ */
+class SortActionImpl{
+	public:
+
+		virtual ~SortActionImpl(){};
+
+		/**
+		 * Applies the action on the GeneOrder and returning it.
+		 */
+		virtual GeneOrder& operator()(GeneOrder& go) const = 0;
+
+		/**
+		 * Compares sort actions.
+		 */
+		virtual bool operator==(const SortActionImpl& sa) const = 0;
+		
+		/**
+		 * Gives a string representation of the action, for output
+		 */
+		virtual std::string toString() const = 0;
+};
+
 /**
- * Abstraction of a sort action, keeping track of score
+ * Abstraction of a sort action, all SortActionImpls has to be immutable.
  *
  * \author Michael Andreen
  */
 class SortAction{
 	public:
+		typedef std::tr1::shared_ptr<SortActionImpl> ActionPointer;
 
-		virtual ~SortAction(){};
+		/**
+		 * Creates a new sort action, given a specified action.
+		 * SortAction promises to remove the given action.
+		 */
+		SortAction(SortActionImpl* sa): _action(sa){
+		}
+
+		SortAction(const SortAction& sa): _action(sa._action){
+		}
+
+		const SortAction& operator=(const SortAction& sa){
+			if (this != &sa)
+				_action = sa._action;
+			return *this;
+		}
+		
+		~SortAction(){};
+
+		/**
+		 * Applies the action on the GeneOrder and returning it.
+		 */
+		GeneOrder& operator()(GeneOrder& go) const{
+			return (*_action)(go);
+		}
+
+		/**
+		 * Compares sort actions.
+		 */
+		bool operator==(const SortAction& sa) const{
+			return (*_action) == (*sa._action);
+		}
+
+		/**
+		 * Compares sort actions.
+		 */
+		bool operator==(const SortActionImpl& sa) const{
+			return (*_action) == sa;
+		}
+		
+		/**
+		 * Gives a string representation of the action, for output
+		 */
+		std::string toString() const{
+			return _action->toString();
+		}
 
 		/**
-		 * Sort SortActions by score
+		 * Gives access to the implementation
 		 */
-		virtual operator<(const SortAction& sa) const;
+		const SortActionImpl& impl() const{
+			return *_action;
+		}
+	private:
+		ActionPointer _action;
+
 };
 
 #endif