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/cppcodestylepreferences.h

@@ -0,0 +1,48 @@
+#ifndef CPPCODESTYLEPREFERENCES_H
+#define CPPCODESTYLEPREFERENCES_H
+
+#include "cpptools_global.h"
+#include "cppcodestylesettings.h"
+#include <texteditor/ifallbackpreferences.h>
+
+namespace CppTools {
+
+class CPPTOOLS_EXPORT CppCodeStylePreferences : public TextEditor::IFallbackPreferences
+{
+    Q_OBJECT
+public:
+    explicit CppCodeStylePreferences(
+        const QList<TextEditor::IFallbackPreferences *> &fallbacks,
+        QObject *parent = 0);
+
+    virtual QVariant value() const;
+    virtual void setValue(const QVariant &);
+
+    CppCodeStyleSettings settings() const;
+
+    // tracks parent hierarchy until currentParentSettings is null
+    CppCodeStyleSettings currentSettings() const;
+
+    virtual void toMap(const QString &prefix, QVariantMap *map) const;
+    virtual void fromMap(const QString &prefix, const QVariantMap &map);
+
+public slots:
+    void setSettings(const CppTools::CppCodeStyleSettings &data);
+
+signals:
+    void settingsChanged(const CppTools::CppCodeStyleSettings &);
+    void currentSettingsChanged(const CppTools::CppCodeStyleSettings &);
+
+protected:
+    virtual QString settingsSuffix() const;
+
+private slots:
+    void slotCurrentValueChanged(const QVariant &);
+
+private:
+    CppCodeStyleSettings m_data;
+};
+
+} // namespace CppTools
+
+#endif // CPPCODESTYLEPREFERENCES_H