CppTools: modernize

Change-Id: Iaf02e4d026f1ac8b216833d83cd7a735e21ff60a
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cpptools/cppcodestylesettingspage.h

@@ -54,8 +54,8 @@ class CppCodeStylePreferencesWidget : public QWidget
 {
     Q_OBJECT
 public:
-    explicit CppCodeStylePreferencesWidget(QWidget *parent = 0);
-    virtual ~CppCodeStylePreferencesWidget();
+    explicit CppCodeStylePreferencesWidget(QWidget *parent = nullptr);
+    ~CppCodeStylePreferencesWidget() override;
 
     void setCodeStyle(CppTools::CppCodeStylePreferences *codeStylePreferences);
 
@@ -71,10 +71,10 @@ private:
 
     CppCodeStyleSettings cppCodeStyleSettings() const;
 
-    CppCodeStylePreferences *m_preferences;
+    CppCodeStylePreferences *m_preferences = nullptr;
     Ui::CppCodeStyleSettingsPage *m_ui;
     QList<TextEditor::SnippetEditorWidget *> m_previews;
-    bool m_blockUpdates;
+    bool m_blockUpdates = false;
 };
 
 
@@ -83,14 +83,14 @@ class CppCodeStyleSettingsPage : public Core::IOptionsPage
     Q_OBJECT
 
 public:
-    explicit CppCodeStyleSettingsPage(QWidget *parent = 0);
+    explicit CppCodeStyleSettingsPage(QWidget *parent = nullptr);
 
-    QWidget *widget();
-    void apply();
-    void finish();
+    QWidget *widget() override;
+    void apply() override;
+    void finish() override;
 
 private:
-    CppCodeStylePreferences *m_pageCppCodeStylePreferences;
+    CppCodeStylePreferences *m_pageCppCodeStylePreferences = nullptr;
     QPointer<QWidget> m_widget;
 };