Very rough first start, not even everything added

PlaylistBroadcaster.tproj/NoRepeat.cpp

@@ -0,0 +1,118 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+
+
+#include <stdlib.h>
+#include "SafeStdLib.h"
+#include <string.h>
+
+
+#include "NoRepeat.h"
+
+
+
+NoRepeat::NoRepeat ( UInt32 numNoRepeats )
+    : PLDoubleLinkedList<SimplePlayListElement>()
+{
+    mMaxElements = numNoRepeats;
+}
+
+NoRepeat::~NoRepeat()
+{
+    // we have nothing to do, just let the PLDoubleLinkedList clear itself
+}
+
+bool NoRepeat::CompareNameToElement( PLDoubleLinkedListNode<SimplePlayListElement>* node, void* name )
+{
+    if ( !::strcmp( node->fElement->mElementName, (const char*)name ) )
+        return true;
+    
+    return false;
+}
+
+
+bool NoRepeat::IsInList( char* name )
+{
+    PLDoubleLinkedListNode<SimplePlayListElement>* whichElement;
+    
+    whichElement = ForEachUntil( CompareNameToElement, (void*)name );
+    
+    if ( whichElement )
+        return true;
+    
+    return false;
+    
+}
+
+
+PLDoubleLinkedListNode<SimplePlayListElement>* NoRepeat::AddToList( PLDoubleLinkedListNode<SimplePlayListElement>* node )
+{
+    AddNode(node);
+    PLDoubleLinkedListNode<SimplePlayListElement>* oldTail = NULL;
+    
+    if ( fNumNodes > mMaxElements )
+    {   oldTail = fTail;
+        this->RemoveNode( fTail );
+    }
+    
+    return oldTail;
+}
+
+bool NoRepeat::AddToList( char* name )
+{
+    Assert( false );
+    
+    bool addedSuccesfully = false;
+
+    if ( !this->IsInList( name ) )
+    {
+        SimplePlayListElement*                          element;
+        PLDoubleLinkedListNode<SimplePlayListElement>*  node = NULL;
+
+        element = new SimplePlayListElement(name);
+        
+        Assert( element );
+        
+        if ( element )
+            node = new PLDoubleLinkedListNode<SimplePlayListElement>(element);
+    
+        Assert( node );
+        
+        if ( node )
+        {   
+            PLDoubleLinkedListNode<SimplePlayListElement>* deadNode;
+            
+            deadNode = this->AddToList(node);
+            
+            delete deadNode;
+            addedSuccesfully = true;
+        
+        }
+        
+    }
+    
+    return addedSuccesfully;
+}
+