Make C++ code style configurable.

Change-Id: Iaf08edb2361146e6b5e1cbafdb716a23c938875b
Done-with: Jarek Kobus
Task-number: QTCREATORBUG-2670
Task-number: QTCREATORBUG-4310
Task-number: QTCREATORBUG-2763
Task-number: QTCREATORBUG-3623
Task-number: QTCREATORBUG-567
Reviewed-on: http://codereview.qt.nokia.com/74
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@nokia.com>
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

src/plugins/cpptools/cpptoolssettings.h

@@ -0,0 +1,80 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** No Commercial Usage
+**
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#ifndef CPPTOOLSSETTINGS_H
+#define CPPTOOLSSETTINGS_H
+
+#include "cpptools_global.h"
+
+#include <QtCore/QObject>
+
+namespace TextEditor
+{
+class TabPreferences;
+}
+
+namespace CppTools
+{
+class CppCodeStylePreferences;
+
+
+namespace Internal
+{
+class CppToolsSettingsPrivate;
+}
+
+/**
+ * This class provides a central place for cpp tools settings.
+ */
+class CPPTOOLS_EXPORT CppToolsSettings : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit CppToolsSettings(QObject *parent);
+    ~CppToolsSettings();
+
+    static CppToolsSettings *instance();
+
+    CppCodeStylePreferences *cppCodeStylePreferences() const;
+    TextEditor::TabPreferences *tabPreferences() const;
+
+private:
+    Internal::CppToolsSettingsPrivate *m_d;
+
+    static CppToolsSettings *m_instance;
+};
+
+} // namespace CppTools
+
+#endif // CPPTOOLSSETTINGS_H