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diff --git a/src/plugins/designer/editorwidget.h b/src/plugins/designer/editorwidget.h
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+/***************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact:  Qt Software Information (qt-info@nokia.com)
+**
+** 
+** Non-Open Source Usage  
+** 
+** Licensees may use this file in accordance with the Qt Beta Version
+** License Agreement, Agreement version 2.2 provided with the Software or,
+** alternatively, in accordance with the terms contained in a written
+** agreement between you and Nokia.  
+** 
+** GNU General Public License Usage 
+** 
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the packaging
+** of this file.  Please review the following information to ensure GNU
+** General Public Licensing requirements will be met:
+**
+** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt GPL Exception version
+** 1.2, included in the file GPL_EXCEPTION.txt in this package.  
+** 
+***************************************************************************/
+#ifndef DESIGNER_EDITORWIDGET_H
+#define DESIGNER_EDITORWIDGET_H
+
+#include "designerconstants.h"
+
+#include <coreplugin/minisplitter.h>
+
+#include <QtCore/QPointer>
+#include <QtCore/QList>
+#include <QtCore/QVariant>
+#include <QtGui/QWidget>
+
+QT_BEGIN_NAMESPACE
+class QTabWidget;
+class QVBoxLayout;
+QT_END_NAMESPACE
+
+namespace Designer {
+namespace Internal {
+
+    /* A widget that shares its embedded sub window with others. For example,
+     * the designer editors need to share the widget box, etc. */
+    class SharedSubWindow : public QWidget {
+        Q_OBJECT
+        Q_DISABLE_COPY(SharedSubWindow)
+
+    public:
+        SharedSubWindow(QWidget *shared, QWidget *parent = 0);
+        virtual ~SharedSubWindow();
+
+    public slots:
+        // Takes the shared widget off the current parent and adds it to its
+        // layout
+        void activate();
+
+    private:
+        QPointer <QWidget> m_shared;
+        QVBoxLayout *m_layout;
+    };
+
+    /** State of the editor window (splitter sizes)
+      * Shared as a global struct between the instances and stored
+      * in QSettings. */
+    struct EditorWidgetState {
+        QVariant toVariant() const; // API to conveniently store in QSettings
+        bool fromVariant(const QVariant &v);
+
+        QList<int> horizontalSizes;
+        QList<int> centerVerticalSizes;
+        QList<int> rightVerticalSizes;
+    };
+
+    /* Form editor splitter used as editor window. Contains the shared designer
+     * windows. */
+    class EditorWidget : public Core::MiniSplitter {
+        Q_OBJECT
+        Q_DISABLE_COPY(EditorWidget)
+    public:
+        explicit EditorWidget(QWidget *formWindow);
+
+        virtual bool event(QEvent * e);
+
+        EditorWidgetState save() const;
+        bool restore(const EditorWidgetState &s);
+
+        // Get/Set the shared splitter state of all editors of that type for
+        // settings
+        static EditorWidgetState state();
+        static void setState(const EditorWidgetState&st);
+
+    public slots:
+        void activate();
+        void toolChanged(int);
+
+    private:
+        void setInitialSizes();
+
+        SharedSubWindow* m_designerSubWindows[Designer::Constants::DesignerSubWindowCount];
+        QSplitter *m_centerVertSplitter;
+        QTabWidget *m_bottomTab;
+        QSplitter *m_rightVertSplitter;
+    };
+}
+}
+
+#endif