Changeset 1718:6a958ab38386 in lemon-0.x for lemon/bits/alteration_notifier.h

Timestamp:

10/14/05 12:44:49 (19 years ago)

Author:

Balazs Dezso

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@2245

Message:

Extending observer interface
It will be used in the indegmap, outdegmap types

File:

• lemon/bits/alteration_notifier.h (modified) (4 diffs)

lemon/bits/alteration_notifier.h

@@ -140 +140 @@
 
       /// \brief The member function to notificate the observer about 
-      /// simulitem is added to the container.
-      ///
-      /// The add() member function notificates the observer about an item
+      /// more item is added to the container.
+      ///
+      /// The add() member function notificates the observer about more item
       /// is added to the container. It have to be overrided in the
       /// subclasses.
@@ -161 +161 @@
       virtual void erase(const Item&) = 0;
 
+      /// \brief The member function to notificate the observer about 
+      /// more item is erased from the container.
+      ///
+      /// The erase() member function notificates the observer about more item
+      /// is erased from the container. It have to be overrided in the
+      /// subclasses.
       virtual void erase(const std::vector<Item>& items) {
         for (int i = 0; i < (int)items.size(); ++i) {
@@ -166 +172 @@
         }
       }
+
+      /// \brief Signal a property change on the given item.
+      ///
+      /// Signal a property change on the given item. It should
+      /// be used always with the commitChange() function.
+      /// This function is called always the property change.
+      /// The commitChange() is called always after the change.
+      virtual void signalChange(const Item&) {}
+
+      /// \brief Commit the property change on the given item.
+      ///
+      /// Commit the property change on the given item. It should
+      /// be used always with the signalChange() function.
+      /// This function is called always the property change.
+      /// The commitChange() is called always after the change.
+      virtual void commitChange(const Item&) {}
 
       /// \brief The member function to notificate the observer about the
@@ -304 +326 @@
     }
     
+    /// \brief Signal a property change on the given item.
+    ///
+    /// Signal a property change on the given item. It should
+    /// be used always with the commitChange() function.
+    /// This function is called always the property change.
+    /// The commitChange() is called always after the change.
+    void signalChange(const Item& item) {
+      typename Container::iterator it;
+      for (it = container.begin(); it != container.end(); ++it) {
+        (*it)->signalChange(item);
+      }
+    }
+    
+    /// \brief Commit the property change on the given item.
+    ///
+    /// Commit the property change on the given item. It should
+    /// be used always with the signalChange() function.
+    /// This function is called always the property change.
+    /// The commitChange() is called always after the change.
+    void commitChange(const Item& item) {
+      typename Container::iterator it;
+      for (it = container.begin(); it != container.end(); ++it) {
+        (*it)->commitChange(item);
+      }
+    }
 
     /// \brief Notifies all the registered observers about the container is