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diff --git a/src/gui/windowlistener.h b/src/gui/windowlistener.h
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+/*
+ *  The Mana World
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World 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
+ *  any later version.
+ *
+ *  The Mana World 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 The Mana World; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  $Id$
+ */
+
+#ifndef _TMW_WINDOW_LISTENER_H_
+#define _TMW_WINDOW_LISTENER_H_
+
+#include <guichan/widgets/window.hpp>
+#include <guichan/event.hpp>
+
+/**
+ * An event that characterizes a window move or resize.
+ *
+ * \ingroup GUI
+ */
+class WindowEvent : public gcn::Event
+{
+    public:
+        /**
+         * Constructor.
+         */
+        WindowEvent(gcn::Window *source, int type):
+            gcn::Event(source)
+        {
+            mType = type;
+        }
+
+        /**
+         * Returns the event type.
+         */
+        int getType() const
+        { return mType; }
+
+        enum WindowEventType
+        {
+            WINDOW_MOVED,
+            WINDOW_RESIZED
+        };
+};
+
+/**
+ * The listener that's notified when a window is moved or resized.
+ *
+ * \ingroup GUI
+ */
+class WindowListener
+{
+    public:
+        /**
+         * Virtual destructor.
+         */
+        virtual ~WindowListener() {}
+
+        /**
+         * Called whenever the window is moved.
+         */
+        virtual void windowMoved(const WindowEvent &event) {}
+
+        /**
+         * Called whenever the window is resized.
+         */
+        virtual void windowResized(const WindowEvent &event) {}
+};
+
+typedef std::list<WindowListener*> WindowListeners;
+
+#endif