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diff --git a/src/plugins/coreplugin/editormanager/editorsplitter.h b/src/plugins/coreplugin/editormanager/editorsplitter.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 EDITORSPLITTER_H
+#define EDITORSPLITTER_H
+
+#include <QtCore/QMap>
+#include <QtCore/QList>
+#include <QtCore/QString>
+#include <QtCore/QSettings>
+#include <QtGui/QWidget>
+#include <QtGui/QAction>
+#include <QtGui/QSplitter>
+
+namespace Core {
+
+class EditorGroup;
+class ICore;
+class IEditor;
+
+namespace Internal {
+
+class EditorSplitter : public QWidget
+{
+    Q_OBJECT
+
+public:
+    EditorSplitter(ICore *core, QWidget *parent = 0);
+    ~EditorSplitter();
+
+    void setCurrentGroup(Core::EditorGroup *group);
+    EditorGroup *currentGroup() const;
+    QList<EditorGroup*> groups() const;
+
+    void split(Qt::Orientation orientation);
+
+    void saveSettings(QSettings *settings) const;
+    void readSettings(QSettings *settings);
+    QByteArray saveState() const;
+    bool restoreState(const QByteArray &state);
+
+    QMap<QString,EditorGroup *> pathGroupMap();
+
+public slots:
+    void unsplit();
+
+signals:
+    void closeRequested(Core::IEditor *editor);
+    void editorGroupsChanged();
+
+private slots:
+    void splitHorizontal();
+    void splitVertical();
+    void gotoNextEditor();
+    void gotoPreviousEditor();
+    void updateActions();
+    void selectNextGroup();
+    void selectPreviousGroup();
+    void moveDocToNextGroup();
+    void moveDocToPreviousGroup();
+    void saveCurrentLayout();
+    void restoreDefaultLayout();
+
+private:
+    enum Side {LEFT = 0, RIGHT = 1};
+
+    void registerActions();
+    void createRootGroup();
+    EditorGroup *createGroup();
+    void deleteGroup(EditorGroup *group);
+    void collectGroups(QWidget *widget, QList<EditorGroup*> &groups) const;
+    EditorGroup *groupFarthestOnSide(QWidget *node, Side side) const;
+    EditorGroup *nextGroup(EditorGroup *curGroup, Side side) const;
+    void moveDocToAdjacentGroup(Side side);
+    void saveState(QWidget *current, QDataStream &stream) const;
+    EditorGroup *restoreState(EditorGroup *current, QDataStream &stream);
+    QSplitter *split(Qt::Orientation orientation, EditorGroup *group);
+    void fillPathGroupMap(QWidget *current, QString currentPath,
+                          QMap<QString,EditorGroup *> &map);
+    void unsplitAll();
+    void unsplitAll(QWidget *node, QList<IEditor *> &editors);
+    QWidget *recreateGroupTree(QWidget *node);
+    int editorCount() const;
+
+    QWidget *m_root;
+    EditorGroup *m_curGroup;
+    ICore *m_core;
+
+    QAction *m_horizontalSplitAction;
+    QAction *m_verticalSplitAction;
+    QAction *m_unsplitAction;
+#if 0
+    QAction *m_gotoNextEditorAction;
+    QAction *m_gotoPreviousEditorAction;
+#endif
+    QAction *m_gotoNextGroupAction;
+    QAction *m_gotoPreviousGroupAction;
+    QAction *m_moveDocToNextGroupAction;
+    QAction *m_moveDocToPreviousGroupAction;
+    QAction *m_currentAsDefault;
+    QAction *m_restoreDefault;
+};
+
+} // namespace Internal
+} // namespace Core
+
+#endif // EDITORSPLITTER_H