Perf: Move closer to now-standard option page setup

The aspect widgets need to serve two purposes (global settings,
and in run configurations), but that's still possible with
an IOptionPageWidget base, the in-project use simply never
triggers the apply().

Change-Id: I1344a37b6dba558b950904378443682b5a068214
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/perfprofiler/perfconfigwidget.cpp

@@ -62,9 +62,11 @@ public:
                               const QModelIndex &index) const override;
 };
 
-PerfConfigWidget::PerfConfigWidget(PerfSettings *settings, QWidget *parent) :
-    QWidget(parent), m_settings(settings), m_ui(new Ui::PerfConfigWidget)
+PerfConfigWidget::PerfConfigWidget(PerfSettings *settings, QWidget *parent)
+    : m_settings(settings), m_ui(new Ui::PerfConfigWidget)
 {
+    setParent(parent);
+
     m_ui->setupUi(this);
     m_ui->useTracePointsButton->setVisible(false);
 
@@ -178,6 +180,11 @@ void PerfConfigWidget::setTracePointsButtonVisible(bool visible)
     m_ui->useTracePointsButton->setVisible(visible);
 }
 
+void PerfConfigWidget::apply()
+{
+    m_settings->writeGlobalSettings();
+}
+
 void PerfConfigWidget::readTracePoints()
 {
     QMessageBox messageBox;

src/plugins/perfprofiler/perfconfigwidget.h

@@ -27,24 +27,27 @@
 
 #include "perfsettings.h"
 
-#include <QWidget>
+#include <coreplugin/dialogs/ioptionspage.h>
 
 namespace PerfProfiler {
 namespace Internal {
 
 namespace Ui { class PerfConfigWidget; }
 
-class PerfConfigWidget : public QWidget
+class PerfConfigWidget : public Core::IOptionsPageWidget
 {
     Q_OBJECT
 public:
     explicit PerfConfigWidget(PerfSettings *settings, QWidget *parent = nullptr);
     ~PerfConfigWidget();
+
     void updateUi();
     void setTarget(ProjectExplorer::Target *target);
     void setTracePointsButtonVisible(bool visible);
 
 private:
+    void apply() final;
+
     void readTracePoints();
     void handleProcessFinished();
     void handleProcessError(QProcess::ProcessError error);

src/plugins/perfprofiler/perfoptionspage.cpp

@@ -23,40 +23,24 @@
 **
 ****************************************************************************/
 
-#include "perfconfigwidget.h"
 #include "perfoptionspage.h"
+
+#include "perfconfigwidget.h"
 #include "perfprofilerconstants.h"
-#include "perfprofilerplugin.h"
 
 #include <debugger/analyzer/analyzericons.h>
 
 namespace PerfProfiler {
 namespace Internal {
 
-PerfOptionsPage::PerfOptionsPage()
+PerfOptionsPage::PerfOptionsPage(PerfSettings *settings)
 {
     setId(Constants::PerfSettingsId);
     setDisplayName(QCoreApplication::translate("PerfProfiler::PerfOptionsPage", "CPU Usage"));
     setCategory("T.Analyzer");
     setDisplayCategory(QCoreApplication::translate("Analyzer", "Analyzer"));
     setCategoryIconPath(Analyzer::Icons::SETTINGSCATEGORY_ANALYZER);
-}
-
-QWidget *PerfOptionsPage::widget()
-{
-    if (!m_widget)
-        m_widget = new PerfConfigWidget(PerfProfilerPlugin::globalSettings());
-    return m_widget;
-}
-
-void PerfOptionsPage::apply()
-{
-    PerfProfilerPlugin::globalSettings()->writeGlobalSettings();
-}
-
-void PerfOptionsPage::finish()
-{
-    delete m_widget;
+    setWidgetCreator([settings] { return new PerfConfigWidget(settings); });
 }
 
 } // namespace Internal

src/plugins/perfprofiler/perfoptionspage.h

@@ -27,23 +27,17 @@
 
 #include <coreplugin/dialogs/ioptionspage.h>
 
-#include <QPointer>
-
 namespace PerfProfiler {
+
+class PerfSettings;
+
 namespace Internal {
 
 class PerfOptionsPage : public Core::IOptionsPage
 {
     Q_OBJECT
 public:
-    PerfOptionsPage();
-
-    QWidget *widget();
-    void apply();
-    void finish();
-
-private:
-    QPointer<QWidget> m_widget;
+    explicit PerfOptionsPage(PerfSettings *settings);
 };
 
 } // namespace Internal

src/plugins/perfprofiler/perfprofilerplugin.cpp

@@ -73,7 +73,7 @@ public:
         {ProjectExplorer::Constants::PERFPROFILER_RUN_MODE}
     };
 
-    PerfOptionsPage optionsPage;
+    PerfOptionsPage optionsPage{perfGlobalSettings()};
     PerfProfilerTool profilerTool;
 };