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diff --git a/source/blender/compositor/intern/COM_SocketConnection.h b/source/blender/compositor/intern/COM_SocketConnection.h
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+++ b/source/blender/compositor/intern/COM_SocketConnection.h
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+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * 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.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#ifndef _COM_SocketConnection_h
+#define _COM_SocketConnection_h
+
+#include "DNA_node_types.h"
+#include "COM_Node.h"
+#include "COM_Socket.h"
+#include "COM_ChannelInfo.h"
+
+/**
+  * @brief An SocketConnection is an connection between an InputSocket and an OutputSocket.
+  *
+  * <pre>
+  * +----------+     To InputSocket +----------+
+  * | From     |  SocketConnection \| To Node  |
+  * | Node     *====================*          |
+  * |          |\                   |          |
+  * |          | From OutputSocket  +----------+
+  * +----------+
+  * </pre>
+  * @ingroup Model
+  * @see InputSocket
+  * @see OutputSocket
+  */
+class SocketConnection {
+private:
+	/**
+	  * @brief Startpoint of the connection
+	  */
+	OutputSocket *fromSocket;
+	
+	/**
+	  * @brief Endpoint of the connection
+	  */
+	InputSocket *toSocket;
+	
+	/**
+	  * @brief has the resize already been done for this connection
+	  */
+	bool ignoreResizeCheck;
+public:
+	SocketConnection();
+	
+	/**
+	  * @brief set the startpoint of the connection
+	  * @param fromsocket
+	  */
+	void setFromSocket(OutputSocket* fromsocket);
+	
+	/**
+	  * @brief get the startpoint of the connection
+	  * @return from OutputSocket
+	  */
+	OutputSocket* getFromSocket() const;
+	
+	/**
+	  * @brief set the endpoint of the connection
+	  * @param tosocket
+	  */
+	void setToSocket(InputSocket* tosocket);
+	
+	/**
+	  * @brief get the endpoint of the connection
+	  * @return to InputSocket
+	  */
+	InputSocket* getToSocket() const;
+	
+	/**
+	  * @brief check if this connection is valid
+	  */
+	bool isValid() const;
+	
+	/**
+	  * @brief return the Node where this connection is connected from
+	  */
+	NodeBase * getFromNode() const;
+	
+	/**
+	  * @brief return the Node where this connection is connected to
+	  */
+	NodeBase * getToNode() const;
+	
+	/**
+	  * @brief set, whether the resize has already been done for this SocketConnection
+	  */
+	void setIgnoreResizeCheck(bool check) {this->ignoreResizeCheck = check;}
+	
+	/**
+	  * @brief has the resize already been done for this SocketConnection
+	  */
+	bool isIgnoreResizeCheck() const { return this->ignoreResizeCheck;}
+	
+	/**
+	  * @brief does this SocketConnection need resolution conversion
+	  * @note PreviewOperation's will be ignored
+	  * @note Already converted SocketConnection's will be ignored
+	  * @return needs conversion [true:false]
+	  */
+	bool needsResolutionConversion() const;
+};
+
+#endif