CppEditor: Use IOptionPage::setWidgetCreator() for cppquickfix settings

Change-Id: I33455f2ea98b1cafbb56ab8267b4d0afca106f33
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/cppeditor/cppquickfixprojectsettingswidget.cpp

@@ -28,7 +28,7 @@ CppQuickFixProjectSettingsWidget::CppQuickFixProjectSettingsWidget(ProjectExplor
     auto layout = new QVBoxLayout();
     gridLayout->addLayout(layout, 2, 0, 1, 2);
 
-    m_settingsWidget = new CppQuickFixSettingsWidget(this);
+    m_settingsWidget = new CppQuickFixSettingsWidget;
     m_settingsWidget->loadSettings(m_projectSettings->getSettings());
 
     if (QLayout *layout = m_settingsWidget->layout())

src/plugins/cppeditor/cppquickfixsettingspage.cpp

@@ -5,12 +5,8 @@
 
 #include "cppeditorconstants.h"
 #include "cppeditortr.h"
-#include "cppquickfixsettings.h"
 #include "cppquickfixsettingswidget.h"
 
-#include <QCoreApplication>
-#include <QtDebug>
-
 namespace CppEditor::Internal {
 
 CppQuickFixSettingsPage::CppQuickFixSettingsPage()
@@ -18,27 +14,7 @@ CppQuickFixSettingsPage::CppQuickFixSettingsPage()
     setId(Constants::QUICK_FIX_SETTINGS_ID);
     setDisplayName(Tr::tr(Constants::QUICK_FIX_SETTINGS_DISPLAY_NAME));
     setCategory(Constants::CPP_SETTINGS_CATEGORY);
-}
-
-QWidget *CppQuickFixSettingsPage::widget()
-{
-    if (!m_widget) {
-        m_widget = new CppQuickFixSettingsWidget;
-        m_widget->loadSettings(CppQuickFixSettings::instance());
-    }
-    return m_widget;
-}
-
-void CppQuickFixSettingsPage::apply()
-{
-    const auto s = CppQuickFixSettings::instance();
-    m_widget->saveSettings(s);
-    s->saveAsGlobalSettings();
-}
-
-void CppQuickFixSettingsPage::finish()
-{
-    delete m_widget;
+    setWidgetCreator([] { return new CppQuickFixSettingsWidget; });
 }
 
 } // CppEditor::Internal

src/plugins/cppeditor/cppquickfixsettingspage.h

@@ -5,24 +5,12 @@
 
 #include <coreplugin/dialogs/ioptionspage.h>
 
-#include <QPointer>
-
-namespace CppEditor {
-namespace Internal {
-class CppQuickFixSettingsWidget;
+namespace CppEditor::Internal {
 
 class CppQuickFixSettingsPage : public Core::IOptionsPage
 {
 public:
     CppQuickFixSettingsPage();
-
-    QWidget *widget() override;
-    void apply() override;
-    void finish() override;
-
-private:
-    QPointer<CppQuickFixSettingsWidget> m_widget;
 };
 
-} // namespace Internal
-} // namespace CppEditor
+} // CppEditor::Internal

src/plugins/cppeditor/cppquickfixsettingswidget.cpp

@@ -88,9 +88,8 @@ void LineCountSpinBox::updateFields()
     m_unitLabel->setEnabled(enabled);
 }
 
-CppQuickFixSettingsWidget::CppQuickFixSettingsWidget(QWidget *parent)
-    : QWidget(parent)
-    , m_typeSplitter("\\s*,\\s*")
+CppQuickFixSettingsWidget::CppQuickFixSettingsWidget()
+    : m_typeSplitter("\\s*,\\s*")
 {
     m_lines_getterOutsideClass = new LineCountSpinBox;
     m_lines_getterInCppFile = new LineCountSpinBox;
@@ -319,6 +318,8 @@ e.g. name = "m_test_foo_":
     connect(m_radioButton_addUsingnamespace, &QRadioButton::clicked, then);
     connect(m_radioButton_generateMissingNamespace, &QRadioButton::clicked, then);
     connect(m_radioButton_rewriteTypes, &QRadioButton::clicked, then);
+
+    loadSettings(CppQuickFixSettings::instance());
 }
 
 void CppQuickFixSettingsWidget::loadSettings(CppQuickFixSettings *settings)
@@ -426,6 +427,13 @@ void CppQuickFixSettingsWidget::saveSettings(CppQuickFixSettings *settings)
     }
 }
 
+void CppQuickFixSettingsWidget::apply()
+{
+    const auto s = CppQuickFixSettings::instance();
+    saveSettings(s);
+    s->saveAsGlobalSettings();
+}
+
 void CppQuickFixSettingsWidget::currentCustomItemChanged(QListWidgetItem *newItem,
                                                          QListWidgetItem *oldItem)
 {

src/plugins/cppeditor/cppquickfixsettingswidget.h

@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include <coreplugin/dialogs/ioptionspage.h>
+
 #include <QApplication>
 #include <QRegularExpression>
 #include <QWidget>
@@ -23,7 +25,7 @@ namespace CppEditor::Internal {
 
 class LineCountSpinBox;
 
-class CppQuickFixSettingsWidget : public QWidget
+class CppQuickFixSettingsWidget : public Core::IOptionsPageWidget
 {
     Q_OBJECT
 
@@ -36,7 +38,7 @@ class CppQuickFixSettingsWidget : public QWidget
     };
 
 public:
-    explicit CppQuickFixSettingsWidget(QWidget *parent = nullptr);
+    CppQuickFixSettingsWidget();
 
     void loadSettings(CppQuickFixSettings *settings);
     void saveSettings(CppQuickFixSettings *settings);
@@ -45,6 +47,7 @@ signals:
     void settingsChanged();
 
 private:
+    void apply() final;
     void currentCustomItemChanged(QListWidgetItem *newItem, QListWidgetItem *oldItem);
 
     bool m_isLoadingSettings = false;