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diff --git a/src/electronics/components/demultiplexer.h b/src/electronics/components/demultiplexer.h
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+++ b/src/electronics/components/demultiplexer.h
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+/***************************************************************************
+ *   Copyright (C) 2004-2005 by David Saxton                               *
+ *   [email protected]                                                    *
+ *                                                                         *
+ *   This program 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.                                   *
+ ***************************************************************************/
+
+#ifndef DEMULTIPLEXER_H
+#define DEMULTIPLEXER_H
+
+#include "component.h"
+#include "logic.h"
+
+#include <qptrvector.h>
+
+/**
+@author David Saxton
+*/
+class Demultiplexer : public CallbackClass,  public Component
+{
+public:
+	Demultiplexer( ICNDocument *icnDocument, bool newItem, const char *id = 0L );
+	~Demultiplexer();
+	
+	virtual bool canFlip() const { return true; }
+	static Item* construct( ItemDocument *itemDocument, bool newItem, const char *id );
+	static LibraryItem *libraryItem();
+	
+protected:
+	void dataChanged();
+	/**
+	 * Add / remove pins according to the number of inputs the user has requested
+	 */
+	void initPins( unsigned addressSize );
+	
+	void inStateChanged( bool newState );
+	
+	QPtrVector<LogicIn> m_aLogic;
+	QPtrVector<LogicOut> m_xLogic;
+	LogicIn * m_input;
+};
+
+#endif