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diff --git a/umbrello/umbrello/objectwidgetcontroller.h b/umbrello/umbrello/objectwidgetcontroller.h
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+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ *   copyright (C) 2006                                                    *
+ *   Umbrello UML Modeller Authors <uml-devel@uml.sf.net>                  *
+ ***************************************************************************/
+
+#ifndef OBJECTWIDGETCONTROLLER_H
+#define OBJECTWIDGETCONTROLLER_H
+
+#include "umlwidgetcontroller.h"
+
+class ObjectWidget;
+
+/**
+ * Controller for ObjectWidget.
+ *
+ * When moving an ObjectWidget, it is only moved along X axis. Y axis movement
+ * is always ignored.
+ * So, if the ObjectWidget is being moved as part of a selection and that
+ * selection is moved in X and/or Y axis, the ObjectWidget will only move in X axis.
+ * Also, when constraining the move of the selection because the receiver of
+ * mouse move events is an ObjectWidget, all the widgets are moved only in X axis.
+ *
+ * Only horizontal resize is allowed for ObjectWidget. Cursor is set to reflect this.
+ *
+ * @author Umbrello UML Modeller Authors <uml-devel@lists.sourceforge.net>
+ */
+class ObjectWidgetController : public UMLWidgetController {
+public:
+
+    /**
+     * Constructor for ObjectWidgetController.
+     *
+     * @param objectWidget The object widget which uses the controller.
+     */
+    ObjectWidgetController(ObjectWidget *objectWidget);
+
+    /**
+     * Destructor for ObjectWidgetController.
+     */
+    virtual ~ObjectWidgetController();
+
+protected:
+
+    /**
+     * Overriden from UMLWidgetController.
+     * Returns the cursor to be shown when resizing the widget.
+     * The cursor shown is KCursor::sizeHorCursor().
+     *
+     * @return The cursor to be shown when resizing the widget.
+     */
+    virtual QCursor getResizeCursor();
+
+    /**
+     * Overriden from UMLWidgetController.
+     * Resizes the width of the object widget.
+     * Object widgets can only be resized horizontally, so height isn't modified.
+     *
+     * @param newW The new width for the widget.
+     * @param newH The new height for the widget (isn't used).
+     */
+    virtual void resizeWidget(int newW, int newH);
+
+    /**
+     * Overriden from UMLWidgetController.
+     * Moves the widget to a new position using the difference between the
+     * current position and the new position.
+     * Y position is ignored, and widget is only moved along X axis.
+     *
+     * @param diffX The difference between current X position and new X position.
+     * @param diffY The difference between current Y position and new Y position
+     *                          (isn't used).
+     */
+    virtual void moveWidgetBy(int diffX, int diffY);
+
+    /**
+     * Overriden from UMLWidgetController.
+     * Modifies the value of the diffX and diffY variables used to move the widgets.
+     * All the widgets are constrained to be moved only in X axis (diffY is set to 0).
+     *
+     * @param diffX The difference between current X position and new X position.
+     * @param diffY The difference between current Y position and new Y position.
+     */
+    virtual void constrainMovementForAllWidgets(int &diffX, int &diffY);
+};
+
+#endif