1 files changed, 39 insertions, 0 deletions
diff --git a/kmail/isubject.cpp b/kmail/isubject.cpp
new file mode 100644
index 00000000..13f8e890
--- /dev/null
+++ b/kmail/isubject.cpp
@@ -0,0 +1,39 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "isubject.h"
+#include "interfaces/observer.h"
+
+#include <qtl.h>
+
+#include <kdebug.h>
+
+namespace KMail {
+
+  ISubject::~ISubject()
+  {
+    mObserverList.clear();
+  }
+
+  void ISubject::attach( Interface::Observer * pObserver )
+  {
+    if ( qFind( mObserverList.begin(), mObserverList.end(), pObserver ) == mObserverList.end() )
+      mObserverList.push_back( pObserver );
+  }
+
+  void ISubject::detach( Interface::Observer * pObserver ) {
+    QValueVector<Interface::Observer*>::iterator it = qFind( mObserverList.begin(), mObserverList.end(), pObserver );
+    if ( it != mObserverList.end() )
+      mObserverList.erase( it );
+  }
+
+  void ISubject::notify()
+  {
+    kdDebug(5006) << "ISubject::notify " << mObserverList.size() << endl;
+    for ( QValueVector<Interface::Observer*>::iterator it = mObserverList.begin() ; it != mObserverList.end() ; ++it )
+      (*it)->update( this );
+  }
+
+}
+