Changeset 962:1a770e9f80b2 in lemon-0.x for src/lemon/alteration_observer_registry.h

Timestamp:

11/05/04 01:31:49 (20 years ago)

Author:

Mihaly Barasz

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@1345

Message:

Undirect graph implementation.
Not yet done, untested.

File:

• src/lemon/alteration_observer_registry.h (modified) (4 diffs)

src/lemon/alteration_observer_registry.h

@@ -279 +279 @@
 
 
-  /// Class to extend a graph functionality with the possibility of alteration observing.
-
-  /// AlterableGraphExtender extends the _Base graphs functionality with the possibility of 
-  /// alteration observing. It defines two observer registrys for the nodes and mapes.
+  /// \brief Class to extend a graph with the functionality of alteration
+  /// observing.
+  ///
+  /// AlterableGraphExtender extends the _Base graphs functionality with
+  /// the possibility of alteration observing. It defines two observer
+  /// registrys for the nodes and mapes.
+  /// 
+  /// \todo Document what "alteration observing" is. And probably find a
+  /// better (shorter) name.
   ///
   /// \param _Base is the base class to extend.
@@ -288 +293 @@
   /// \pre _Base is conform to the BaseGraphComponent concept.
   ///
-  /// \post AlterableGraphExtender<_Base> is conform to the AlterableGraphComponent concept.
+  /// \post AlterableGraphExtender<_Base> is conform to the
+  /// AlterableGraphComponent concept.
   ///
   /// \author Balazs Dezso
@@ -302 +308 @@
     typedef typename Parent::Edge Edge;
 
+    /// The edge observer registry.
+    typedef AlterationObserverRegistry<Edge> EdgeObserverRegistry;
     /// The node observer registry.
-    typedef AlterationObserverRegistry<Edge> EdgeObserverRegistry;
-    /// The edge observer registry.
     typedef AlterationObserverRegistry<Node> NodeObserverRegistry;
 
@@ -331 +337 @@
   };
 
+  /// \brief Class to extend an undirected graph with the functionality of
+  /// alteration observing.
+  ///
+  /// \todo Document.
+  ///
+  /// \sa AlterableGraphExtender
+  ///
+  /// \bug This should be done some other way. Possibilities: template
+  /// specialization (not very easy, if at all possible); some kind of
+  /// enable_if boost technique?
+
+  template <typename _Base> 
+  class AlterableUndirGraphExtender
+    : public AlterableGraphExtender<_Base> {
+  public:
+
+    typedef AlterableUndirGraphExtender Graph;
+    typedef AlterableGraphExtender<_Base> Parent;
+
+    typedef typename Parent::UndirEdge UndirEdge;
+
+    /// The edge observer registry.
+    typedef AlterationObserverRegistry<UndirEdge> UndirEdgeObserverRegistry;
+
+  protected:
+
+    mutable UndirEdgeObserverRegistry undir_edge_observers;
+
+    UndirEdgeObserverRegistry& getUndirEdgeObserverRegistry() const {
+      return undir_edge_observers;
+    }
+
+    ~AlterableUndirGraphExtender() {
+      undir_edge_observers.clear();
+    }
+  };
   
 /// @}