ok

git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant@1 8a3a26a2-13c4-0310-b231-cf6edde360e5

libs/generic/callback.cpp

@@ -0,0 +1,109 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "callback.h"
+
+#if defined(_DEBUG) || defined(DOXYGEN)
+
+namespace ExampleMemberCaller
+{
+  // MemberCaller example
+  class Integer
+  {
+  public:
+    int value;
+
+    void printValue() const
+    {
+      // print this->value here;
+    }
+
+    void setValue()
+    {
+      value = 3;
+    }
+    // a typedef to make things more readable
+    typedef MemberCaller<Integer, &Integer::setValue> SetValueCaller;
+  };
+
+  void example()
+  {
+    Integer foo = { 0 };
+
+    {
+      Callback bar = ConstMemberCaller<Integer, &Integer::printValue>(foo);
+
+      // invoke the callback
+      bar(); // foo.printValue()
+    }
+
+
+    {
+      // use the typedef to improve readability
+      Callback bar = Integer::SetValueCaller(foo);
+
+      // invoke the callback
+      bar(); // foo.setValue()
+    }
+  }
+  // end example
+}
+
+namespace ExampleReferenceCaller
+{
+  // ReferenceCaller example
+  void Int_printValue(const int& value)
+  {
+    // print value here;
+  }
+
+  void Int_setValue(int& value)
+  {
+    value = 3;
+  }
+
+  // a typedef to make things more readable
+  typedef ReferenceCaller<int, Int_setValue> IntSetValueCaller;
+
+  void example()
+  {
+    int foo = 0;
+
+    {
+      Callback bar = ConstReferenceCaller<int, Int_printValue>(foo);
+
+      // invoke the callback
+      bar(); // Int_printValue(foo)
+    }
+
+
+    {
+      // use the typedef to improve readability
+      Callback bar = IntSetValueCaller(foo);
+
+      // invoke the callback
+      bar(); // Int_setValue(foo)
+    }
+  }
+  // end example
+}
+
+#endif