QmlProfiler: Track requested, recorded, and displayed features

This way we can have a central filter menu to hide and show features
in any connected views.

Change-Id: I8142da0062a23f8166555016de6c7cb38060f725
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilerclientmanager.cpp

@@ -151,8 +151,9 @@ void QmlProfilerClientManager::enableServices()
     disconnectClientSignals();
     d->profilerState->setServerRecording(false); // false by default (will be set to true when connected)
     delete d->qmlclientplugin.data();
+    d->profilerState->setRecordedFeatures(0);
     d->qmlclientplugin = new QmlProfilerTraceClient(d->connection,
-                                                    d->profilerState->recordingFeatures());
+                                                    d->profilerState->requestedFeatures());
     connectClientSignals();
 }
 
@@ -178,8 +179,10 @@ void QmlProfilerClientManager::connectClientSignals()
                 d->qmlclientplugin.data(), SLOT(sendRecordingStatus()));
         connect(d->qmlclientplugin.data(), SIGNAL(recordingChanged(bool)),
                 d->profilerState, SLOT(setServerRecording(bool)));
-        connect(d->profilerState, SIGNAL(recordingFeaturesChanged(quint64)),
-                d->qmlclientplugin.data(), SLOT(setFeatures(quint64)));
+        connect(d->profilerState, &QmlProfilerStateManager::requestedFeaturesChanged,
+                d->qmlclientplugin.data(), &QmlProfilerTraceClient::setRequestedFeatures);
+        connect(d->qmlclientplugin.data(), &QmlProfilerTraceClient::recordedFeaturesChanged,
+                d->profilerState, &QmlProfilerStateManager::setRecordedFeatures);
     }
 }
 
@@ -203,8 +206,10 @@ void QmlProfilerClientManager::disconnectClientSignals()
         // fixme: this should be unified for both clients
         disconnect(d->qmlclientplugin.data(), SIGNAL(recordingChanged(bool)),
                    d->profilerState, SLOT(setServerRecording(bool)));
-        disconnect(d->profilerState, SIGNAL(recordingFeaturesChanged(quint64)),
-                   d->qmlclientplugin.data(), SLOT(setFeatures(quint64)));
+        disconnect(d->profilerState, &QmlProfilerStateManager::requestedFeaturesChanged,
+                   d->qmlclientplugin.data(), &QmlProfilerTraceClient::setRequestedFeatures);
+        disconnect(d->qmlclientplugin.data(), &QmlProfilerTraceClient::recordedFeaturesChanged,
+                   d->profilerState, &QmlProfilerStateManager::setRecordedFeatures);
     }
 }
 

src/plugins/qmlprofiler/qmlprofilermodelmanager.cpp

@@ -178,7 +178,9 @@ public:
 
     QVector <double> partialCounts;
     QVector <int> partialCountWeights;
-    quint64 features;
+    quint64 availableFeatures;
+    quint64 visibleFeatures;
+    quint64 recordedFeatures;
 
     int totalWeight;
     double progress;
@@ -193,7 +195,9 @@ QmlProfilerModelManager::QmlProfilerModelManager(Utils::FileInProjectFinder *fin
     QObject(parent), d(new QmlProfilerModelManagerPrivate(this))
 {
     d->totalWeight = 0;
-    d->features = 0;
+    d->availableFeatures = 0;
+    d->visibleFeatures = 0;
+    d->recordedFeatures = 0;
     d->model = new QmlProfilerDataModel(finder, this);
     d->dataState = new QmlProfilerDataState(this, this);
     d->traceTime = new QmlProfilerTraceTime(this);
@@ -272,15 +276,45 @@ void QmlProfilerModelManager::modelProxyCountUpdated(int proxyId, qint64 count,
 void QmlProfilerModelManager::announceFeatures(int proxyId, quint64 features)
 {
     Q_UNUSED(proxyId); // Will use that later to optimize the event dispatching on loading.
-    if ((features & d->features) != features) {
-        d->features |= features;
-        emit availableFeaturesChanged(d->features);
+    if ((features & d->availableFeatures) != features) {
+        d->availableFeatures |= features;
+        emit availableFeaturesChanged(d->availableFeatures);
+    }
+    if ((features & d->visibleFeatures) != features) {
+        d->visibleFeatures |= features;
+        emit visibleFeaturesChanged(d->visibleFeatures);
     }
 }
 
-quint64 QmlProfilerModelManager::availableFeatures()
+quint64 QmlProfilerModelManager::availableFeatures() const
 {
-    return d->features;
+    return d->availableFeatures;
+}
+
+quint64 QmlProfilerModelManager::visibleFeatures() const
+{
+    return d->visibleFeatures;
+}
+
+void QmlProfilerModelManager::setVisibleFeatures(quint64 features)
+{
+    if (d->visibleFeatures != features) {
+        d->visibleFeatures = features;
+        emit visibleFeaturesChanged(d->visibleFeatures);
+    }
+}
+
+quint64 QmlProfilerModelManager::recordedFeatures() const
+{
+    return d->recordedFeatures;
+}
+
+void QmlProfilerModelManager::setRecordedFeatures(quint64 features)
+{
+    if (d->recordedFeatures != features) {
+        d->recordedFeatures = features;
+        emit recordedFeaturesChanged(d->recordedFeatures);
+    }
 }
 
 const char *QmlProfilerModelManager::featureName(QmlDebug::ProfileFeature feature)
@@ -398,6 +432,7 @@ void QmlProfilerModelManager::load()
         connect(&reader, &QmlProfilerFileReader::error, this, &QmlProfilerModelManager::error);
         reader.setQmlDataModel(d->model);
         reader.load(file);
+        setRecordedFeatures(reader.loadedFeatures());
         file->close();
         file->deleteLater();
 
@@ -430,6 +465,8 @@ void QmlProfilerModelManager::clear()
     d->model->clear();
     d->traceTime->clear();
     d->notesModel->clear();
+    setVisibleFeatures(0);
+    setRecordedFeatures(0);
 
     setState(QmlProfilerDataState::Empty);
 }

src/plugins/qmlprofiler/qmlprofilermodelmanager.h

@@ -127,7 +127,12 @@ public:
     void setProxyCountWeight(int proxyId, int weight);
     void modelProxyCountUpdated(int proxyId, qint64 count, qint64 max);
     void announceFeatures(int proxyId, quint64 features);
-    quint64 availableFeatures();
+    quint64 availableFeatures() const;
+    quint64 visibleFeatures() const;
+    void setVisibleFeatures(quint64 features);
+    quint64 recordedFeatures() const;
+    void setRecordedFeatures(quint64 features);
+
     static const char *featureName(QmlDebug::ProfileFeature feature);
 
 signals:
@@ -139,6 +144,8 @@ signals:
 
     void requestDetailsForLocation(int eventType, const QmlDebug::QmlEventLocation &location);
     void availableFeaturesChanged(quint64 features);
+    void visibleFeaturesChanged(quint64 features);
+    void recordedFeaturesChanged(quint64 features);
 
 public slots:
     void clear();

src/plugins/qmlprofiler/qmlprofilerstatemanager.cpp

@@ -64,7 +64,8 @@ public:
     QmlProfilerStateManager::QmlProfilerState m_currentState;
     bool m_clientRecording;
     bool m_serverRecording;
-    quint64 m_recordingFeatures;
+    quint64 m_requestedFeatures;
+    quint64 m_recordedFeatures;
 };
 QmlProfilerStateManager::QmlProfilerStateManager(QObject *parent) :
     QObject(parent),d(new QmlProfilerStateManagerPrivate(this))
@@ -72,7 +73,8 @@ QmlProfilerStateManager::QmlProfilerStateManager(QObject *parent) :
     d->m_currentState = Idle;
     d->m_clientRecording = true;
     d->m_serverRecording = false;
-    d->m_recordingFeatures = 0;
+    d->m_requestedFeatures = 0;
+    d->m_recordedFeatures = 0;
 }
 
 QmlProfilerStateManager::~QmlProfilerStateManager()
@@ -95,9 +97,14 @@ bool QmlProfilerStateManager::serverRecording()
     return d->m_serverRecording;
 }
 
-quint64 QmlProfilerStateManager::recordingFeatures() const
+quint64 QmlProfilerStateManager::requestedFeatures() const
 {
-    return d->m_recordingFeatures;
+    return d->m_requestedFeatures;
+}
+
+quint64 QmlProfilerStateManager::recordedFeatures() const
+{
+    return d->m_recordedFeatures;
 }
 
 QString QmlProfilerStateManager::currentStateAsString()
@@ -180,11 +187,19 @@ void QmlProfilerStateManager::setServerRecording(bool recording)
     }
 }
 
-void QmlProfilerStateManager::setRecordingFeatures(quint64 features)
+void QmlProfilerStateManager::setRequestedFeatures(quint64 features)
 {
-    if (d->m_recordingFeatures != features) {
-        d->m_recordingFeatures = features;
-        emit recordingFeaturesChanged(features);
+    if (d->m_requestedFeatures != features) {
+        d->m_requestedFeatures = features;
+        emit requestedFeaturesChanged(features);
+    }
+}
+
+void QmlProfilerStateManager::setRecordedFeatures(quint64 features)
+{
+    if (d->m_recordedFeatures != features) {
+        d->m_recordedFeatures = features;
+        emit recordedFeaturesChanged(features);
     }
 }
 

src/plugins/qmlprofiler/qmlprofilerstatemanager.h

@@ -56,7 +56,8 @@ public:
     QmlProfilerState currentState();
     bool clientRecording();
     bool serverRecording();
-    quint64 recordingFeatures() const;
+    quint64 requestedFeatures() const;
+    quint64 recordedFeatures() const;
 
     QString currentStateAsString();
 
@@ -64,13 +65,15 @@ signals:
     void stateChanged();
     void clientRecordingChanged();
     void serverRecordingChanged();
-    void recordingFeaturesChanged(quint64);
+    void requestedFeaturesChanged(quint64);
+    void recordedFeaturesChanged(quint64);
 
 public slots:
     void setCurrentState(QmlProfilerState newState);
     void setClientRecording(bool recording);
     void setServerRecording(bool recording);
-    void setRecordingFeatures(quint64 features);
+    void setRequestedFeatures(quint64 features);
+    void setRecordedFeatures(quint64 features);
 
 private:
     class QmlProfilerStateManagerPrivate;

src/plugins/qmlprofiler/qmlprofilertimelinemodel.cpp

@@ -44,6 +44,8 @@ QmlProfilerTimelineModel::QmlProfilerTimelineModel(QmlProfilerModelManager *mode
 {
     connect(modelManager, &QmlProfilerModelManager::stateChanged,
             this, &QmlProfilerTimelineModel::dataChanged);
+    connect(modelManager, &QmlProfilerModelManager::visibleFeaturesChanged,
+            this, &QmlProfilerTimelineModel::onVisibleFeaturesChanged);
     announceFeatures(1ULL << m_mainFeature);
 }
 

src/plugins/qmlprofiler/qmlprofilertool.cpp

@@ -101,7 +101,7 @@ public:
     QmlProfilerViewManager *m_viewContainer;
     Utils::FileInProjectFinder m_projectFinder;
     QToolButton *m_recordButton;
-    QMenu *m_featuresMenu;
+    QMenu *m_recordFeaturesMenu;
 
     QToolButton *m_clearButton;
 
@@ -113,6 +113,10 @@ public:
     // open search
     QToolButton *m_searchButton;
 
+    // hide and show categories
+    QToolButton *m_displayFeaturesButton;
+    QMenu *m_displayFeaturesMenu;
+
     // save and load actions
     QAction *m_saveQmlTrace;
     QAction *m_loadQmlTrace;
@@ -126,15 +130,19 @@ QmlProfilerTool::QmlProfilerTool(QObject *parent)
     d->m_profilerState = 0;
     d->m_viewContainer = 0;
     d->m_recordButton = 0;
-    d->m_featuresMenu = 0;
+    d->m_recordFeaturesMenu = 0;
     d->m_clearButton = 0;
     d->m_timeLabel = 0;
     d->m_searchButton = 0;
+    d->m_displayFeaturesButton = 0;
+    d->m_displayFeaturesMenu = 0;
 
     d->m_profilerState = new QmlProfilerStateManager(this);
     connect(d->m_profilerState, SIGNAL(stateChanged()), this, SLOT(profilerStateChanged()));
     connect(d->m_profilerState, SIGNAL(clientRecordingChanged()), this, SLOT(clientRecordingChanged()));
     connect(d->m_profilerState, SIGNAL(serverRecordingChanged()), this, SLOT(serverRecordingChanged()));
+    connect(d->m_profilerState, &QmlProfilerStateManager::recordedFeaturesChanged,
+            this, &QmlProfilerTool::setRecordedFeatures);
 
     d->m_profilerConnections = new QmlProfilerClientManager(this);
     d->m_profilerConnections->registerProfilerStateManager(d->m_profilerState);
@@ -143,8 +151,8 @@ QmlProfilerTool::QmlProfilerTool(QObject *parent)
     d->m_profilerModelManager = new QmlProfilerModelManager(&d->m_projectFinder, this);
     connect(d->m_profilerModelManager, SIGNAL(stateChanged()), this, SLOT(profilerDataModelStateChanged()));
     connect(d->m_profilerModelManager, SIGNAL(error(QString)), this, SLOT(showErrorDialog(QString)));
-    connect(d->m_profilerModelManager, SIGNAL(availableFeaturesChanged(quint64)),
-            this, SLOT(setAvailableFeatures(quint64)));
+    connect(d->m_profilerModelManager, &QmlProfilerModelManager::availableFeaturesChanged,
+            this, &QmlProfilerTool::setAvailableFeatures);
     connect(d->m_profilerModelManager, &QmlProfilerModelManager::saveFinished,
             this, &QmlProfilerTool::onLoadSaveFinished);
     connect(d->m_profilerModelManager, &QmlProfilerModelManager::loadFinished,
@@ -246,12 +254,11 @@ QWidget *QmlProfilerTool::createWidgets()
 
     connect(d->m_recordButton,SIGNAL(clicked(bool)), this, SLOT(recordingButtonChanged(bool)));
     d->m_recordButton->setChecked(true);
-    d->m_featuresMenu = new QMenu(d->m_recordButton);
-    d->m_recordButton->setMenu(d->m_featuresMenu);
+    d->m_recordFeaturesMenu = new QMenu(d->m_recordButton);
+    d->m_recordButton->setMenu(d->m_recordFeaturesMenu);
     d->m_recordButton->setPopupMode(QToolButton::MenuButtonPopup);
-    setAvailableFeatures(d->m_profilerModelManager->availableFeatures());
-    connect(d->m_featuresMenu, SIGNAL(triggered(QAction*)),
-            this, SLOT(toggleRecordingFeature(QAction*)));
+    connect(d->m_recordFeaturesMenu, SIGNAL(triggered(QAction*)),
+            this, SLOT(toggleRequestedFeature(QAction*)));
 
     setRecording(d->m_profilerState->clientRecording());
     layout->addWidget(d->m_recordButton);
@@ -282,8 +289,21 @@ QWidget *QmlProfilerTool::createWidgets()
 
     connect(d->m_searchButton, &QToolButton::clicked, this, &QmlProfilerTool::showTimeLineSearch);
 
+    d->m_displayFeaturesButton = new QToolButton;
+    d->m_displayFeaturesButton->setIcon(QIcon(QLatin1String(ICON_FILTER)));
+    d->m_displayFeaturesButton->setToolTip(tr("Hide or show event categories."));
+    d->m_displayFeaturesButton->setPopupMode(QToolButton::InstantPopup);
+    d->m_displayFeaturesMenu = new QMenu(d->m_displayFeaturesButton);
+    d->m_displayFeaturesButton->setMenu(d->m_displayFeaturesMenu);
+    connect(d->m_displayFeaturesMenu, &QMenu::triggered,
+            this, &QmlProfilerTool::toggleVisibleFeature);
+    layout->addWidget(d->m_displayFeaturesButton);
+
     layout->addStretch();
+
     toolbarWidget->setLayout(layout);
+    setAvailableFeatures(d->m_profilerModelManager->availableFeatures());
+    setRecordedFeatures(0);
 
     // When the widgets are requested we assume that the session data
     // is available, then we can populate the file finder
@@ -407,6 +427,7 @@ void QmlProfilerTool::clearData()
 {
     d->m_profilerModelManager->clear();
     d->m_profilerConnections->discardPendingData();
+    setRecordedFeatures(0);
 }
 
 void QmlProfilerTool::clearDisplay()
@@ -531,12 +552,16 @@ void QmlProfilerTool::showLoadDialog()
 
     if (!filename.isEmpty()) {
         AnalyzerManager::mainWindow()->setEnabled(false);
+        connect(d->m_profilerModelManager, &QmlProfilerModelManager::recordedFeaturesChanged,
+                this, &QmlProfilerTool::setRecordedFeatures);
         d->m_profilerModelManager->load(filename);
     }
 }
 
 void QmlProfilerTool::onLoadSaveFinished()
 {
+    disconnect(d->m_profilerModelManager, &QmlProfilerModelManager::recordedFeaturesChanged,
+               this, &QmlProfilerTool::setRecordedFeatures);
     AnalyzerManager::mainWindow()->setEnabled(true);
 }
 
@@ -556,6 +581,18 @@ bool QmlProfilerTool::checkForUnsavedNotes()
                                 QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes;
 }
 
+void QmlProfilerTool::restoreFeatureVisibility()
+{
+    // Restore the shown/hidden state of features to what the user selected. When clearing data the
+    // the model manager sets its features to 0, and models get automatically shown, for the mockup.
+    quint64 features = 0;
+    foreach (const QAction *action, d->m_displayFeaturesMenu->actions()) {
+        if (action->isChecked())
+            features |= (1ULL << action->data().toUInt());
+    }
+    d->m_profilerModelManager->setVisibleFeatures(features);
+}
+
 void QmlProfilerTool::clientsDisconnected()
 {
     // If the application stopped by itself, check if we have all the data
@@ -571,21 +608,29 @@ void QmlProfilerTool::clientsDisconnected()
     // If the connection is closed while the app is still running, no special action is needed
 }
 
+void addFeatureToMenu(QMenu *menu, ProfileFeature feature, quint64 enabledFeatures)
+{
+    QAction *action =
+            menu->addAction(QmlProfilerTool::tr(QmlProfilerModelManager::featureName(feature)));
+    action->setCheckable(true);
+    action->setData(static_cast<uint>(feature));
+    action->setChecked(enabledFeatures & (1ULL << (feature)));
+}
+
 template<ProfileFeature feature>
-void QmlProfilerTool::updateFeaturesMenu(quint64 features)
+void QmlProfilerTool::updateFeatures(quint64 features)
 {
     if (features & (1ULL << (feature))) {
-        QAction *action = d->m_featuresMenu->addAction(tr(QmlProfilerModelManager::featureName(
-                                               static_cast<ProfileFeature>(feature))));
-        action->setCheckable(true);
-        action->setData(static_cast<uint>(feature));
-        action->setChecked(d->m_profilerState->recordingFeatures() & (1ULL << (feature)));
+        addFeatureToMenu(d->m_recordFeaturesMenu, feature,
+                         d->m_profilerState->requestedFeatures());
+        addFeatureToMenu(d->m_displayFeaturesMenu, feature,
+                         d->m_profilerModelManager->visibleFeatures());
     }
-    updateFeaturesMenu<static_cast<ProfileFeature>(feature + 1)>(features);
+    updateFeatures<static_cast<ProfileFeature>(feature + 1)>(features);
 }
 
 template<>
-void QmlProfilerTool::updateFeaturesMenu<MaximumProfileFeature>(quint64 features)
+void QmlProfilerTool::updateFeatures<MaximumProfileFeature>(quint64 features)
 {
     Q_UNUSED(features);
     return;
@@ -593,14 +638,21 @@ void QmlProfilerTool::updateFeaturesMenu<MaximumProfileFeature>(quint64 features
 
 void QmlProfilerTool::setAvailableFeatures(quint64 features)
 {
-    if (features != d->m_profilerState->recordingFeatures())
-        d->m_profilerState->setRecordingFeatures(features); // by default, enable them all.
-    if (d->m_featuresMenu) {
-        d->m_featuresMenu->clear();
-        updateFeaturesMenu<static_cast<ProfileFeature>(0)>(features);
+    if (features != d->m_profilerState->requestedFeatures())
+        d->m_profilerState->setRequestedFeatures(features); // by default, enable them all.
+    if (d->m_recordFeaturesMenu && d->m_displayFeaturesMenu) {
+        d->m_recordFeaturesMenu->clear();
+        d->m_displayFeaturesMenu->clear();
+        updateFeatures<static_cast<ProfileFeature>(0)>(features);
     }
 }
 
+void QmlProfilerTool::setRecordedFeatures(quint64 features)
+{
+    foreach (QAction *action, d->m_displayFeaturesMenu->actions())
+        action->setEnabled(features & (1ULL << action->data().toUInt()));
+}
+
 void QmlProfilerTool::profilerDataModelStateChanged()
 {
     switch (d->m_profilerModelManager->state()) {
@@ -618,6 +670,7 @@ void QmlProfilerTool::profilerDataModelStateChanged()
             d->m_profilerState->setCurrentState(QmlProfilerStateManager::AppReadyToStop);
         showSaveOption();
         updateTimeDisplay();
+        restoreFeatureVisibility();
     break;
     default:
         break;
@@ -715,19 +768,33 @@ void QmlProfilerTool::serverRecordingChanged()
     }
 }
 
-void QmlProfilerTool::toggleRecordingFeature(QAction *action)
+void QmlProfilerTool::toggleRequestedFeature(QAction *action)
 {
     uint feature = action->data().toUInt();
     if (action->isChecked())
-        d->m_profilerState->setRecordingFeatures(
-                    d->m_profilerState->recordingFeatures() | (1ULL << feature));
+        d->m_profilerState->setRequestedFeatures(
+                    d->m_profilerState->requestedFeatures() | (1ULL << feature));
     else
-        d->m_profilerState->setRecordingFeatures(
-                    d->m_profilerState->recordingFeatures() & (~(1ULL << feature)));
+        d->m_profilerState->setRequestedFeatures(
+                    d->m_profilerState->requestedFeatures() & (~(1ULL << feature)));
 
     // Keep the menu open to allow for more features to be toggled
     d->m_recordButton->showMenu();
 }
 
+void QmlProfilerTool::toggleVisibleFeature(QAction *action)
+{
+    uint feature = action->data().toUInt();
+    if (action->isChecked())
+        d->m_profilerModelManager->setVisibleFeatures(
+                    d->m_profilerModelManager->visibleFeatures() | (1ULL << feature));
+    else
+        d->m_profilerModelManager->setVisibleFeatures(
+                    d->m_profilerModelManager->visibleFeatures() & (~(1ULL << feature)));
+
+    // Keep the menu open to allow for more features to be toggled
+    d->m_displayFeaturesButton->showMenu();
+}
+
 }
 }

src/plugins/qmlprofiler/qmlprofilertool.h

@@ -76,6 +76,7 @@ public slots:
     void serverRecordingChanged();
     void clientsDisconnected();
     void setAvailableFeatures(quint64 features);
+    void setRecordedFeatures(quint64 features);
 
     void recordingButtonChanged(bool recording);
     void setRecording(bool recording);
@@ -95,14 +96,16 @@ private slots:
     void showLoadDialog();
     void onLoadSaveFinished();
 
-    void toggleRecordingFeature(QAction *action);
+    void toggleRequestedFeature(QAction *action);
+    void toggleVisibleFeature(QAction *action);
 
 private:
     void clearDisplay();
     void populateFileFinder(QString projectDirectory = QString(), QString activeSysroot = QString());
     template<QmlDebug::ProfileFeature feature>
-    void updateFeaturesMenu(quint64 features);
+    void updateFeatures(quint64 features);
     bool checkForUnsavedNotes();
+    void restoreFeatureVisibility();
 
     class QmlProfilerToolPrivate;
     QmlProfilerToolPrivate *d;

src/plugins/qmlprofiler/qmlprofilertracefile.cpp

@@ -121,7 +121,8 @@ static QString qmlTypeAsString(Message message, RangeType rangeType)
 
 QmlProfilerFileReader::QmlProfilerFileReader(QObject *parent) :
     QObject(parent),
-    m_future(0)
+    m_future(0),
+    m_loadedFeatures(0)
 {
 }
 
@@ -199,6 +200,37 @@ bool QmlProfilerFileReader::load(QIODevice *device)
     }
 }
 
+quint64 QmlProfilerFileReader::loadedFeatures() const
+{
+    return m_loadedFeatures;
+}
+
+QmlDebug::ProfileFeature featureFromEvent(const QmlProfilerDataModel::QmlEventTypeData &event) {
+    if (event.rangeType < MaximumRangeType)
+        return featureFromRangeType(event.rangeType);
+
+    switch (event.message) {
+    case Event:
+        switch (event.detailType) {
+        case AnimationFrame:
+            return ProfileAnimations;
+        case Key:
+        case Mouse:
+            return ProfileInputEvents;
+        default:
+            return MaximumProfileFeature;
+        }
+    case PixmapCacheEvent:
+        return ProfilePixmapCache;
+    case SceneGraphFrame:
+        return ProfileSceneGraph;
+    case MemoryAllocation:
+        return ProfileMemory;
+    default:
+        return MaximumProfileFeature;
+    }
+}
+
 void QmlProfilerFileReader::loadEventData(QXmlStreamReader &stream)
 {
     QTC_ASSERT(stream.name() == _("eventData"), return);
@@ -308,6 +340,9 @@ void QmlProfilerFileReader::loadEventData(QXmlStreamReader &stream)
                     if (eventIndex >= m_qmlEvents.size())
                         m_qmlEvents.resize(eventIndex + 1);
                     m_qmlEvents[eventIndex] = event;
+                    ProfileFeature feature = featureFromEvent(event);
+                    if (feature != MaximumProfileFeature)
+                        m_loadedFeatures |= (1ULL << static_cast<uint>(feature));
                 }
                 break;
             }

src/plugins/qmlprofiler/qmlprofilertracefile.h

@@ -59,6 +59,7 @@ public:
     void setFuture(QFutureInterface<void> *future);
 
     bool load(QIODevice *device);
+    quint64 loadedFeatures() const;
 
 signals:
     void error(const QString &error);
@@ -75,6 +76,7 @@ private:
     QVector<QmlProfilerDataModel::QmlEventTypeData> m_qmlEvents;
     QVector<QmlProfilerDataModel::QmlEventData> m_ranges;
     QVector<QmlProfilerDataModel::QmlEventNoteData> m_notes;
+    quint64 m_loadedFeatures;
 };