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diff --git a/src/plugins/texteditor/tabsettings.h b/src/plugins/texteditor/tabsettings.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 TABSETTINGS_H
+#define TABSETTINGS_H
+
+#include "texteditor_global.h"
+
+#include <QtGui/QTextBlock>
+
+QT_BEGIN_NAMESPACE
+class QSettings;
+QT_END_NAMESPACE
+
+namespace TextEditor {
+
+// Tab settings: Data type the GeneralSettingsPage acts on
+// with some convenience functions for formatting.
+struct TEXTEDITOR_EXPORT TabSettings
+{
+    TabSettings();
+
+    void toSettings(const QString &category, QSettings *s) const;
+    void fromSettings(const QString &category, const QSettings *s);
+
+
+    int lineIndentPosition(const QString &text) const;
+    int firstNonSpace(const QString &text) const;
+    int columnAt(const QString &text, int position) const;
+    int spacesLeftFromPosition(const QString &text, int position) const;
+    int indentedColumn(int column, bool doIndent = true) const;
+    QString indentationString(int startColumn, int targetColumn) const;
+
+    void indentLine(QTextBlock block, int newIndent) const;
+
+    int trailingWhitespaces(const QString &text) const;
+    bool isIndentationClean(const QString &text) const;
+
+
+    bool m_spacesForTabs;
+    bool m_autoIndent;
+    bool m_smartBackspace;
+    int m_tabSize;
+    int m_indentSize;
+
+    bool equals(const TabSettings &ts) const;
+};
+
+inline bool operator==(const TabSettings &t1, const TabSettings &t2) { return t1.equals(t2); }
+inline bool operator!=(const TabSettings &t1, const TabSettings &t2) { return !t1.equals(t2); }
+
+} // namespace TextEditor
+
+#endif // TABSETTINGS_H