QmlProfiler: display warning when app killed

Change-Id: I2183e02a5ce4b266702d0771933bda61efa66e95
Reviewed-on: http://codereview.qt.nokia.com/1603
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Aurindam Jana <aurindam.jana@nokia.com>

src/plugins/qmlprofiler/qmlprofilerengine.cpp

@@ -173,6 +173,19 @@ void QmlProfilerEngine::stop()
 
 void QmlProfilerEngine::stopped()
 {
+    // user feedback
+    if (d->m_running && d->m_fetchingData) {
+        Core::ICore * const core = Core::ICore::instance();
+        QMessageBox *killedWarning = new QMessageBox(core->mainWindow());
+        killedWarning->setIcon(QMessageBox::Warning);
+        killedWarning->setWindowTitle(tr("QML Profiler"));
+        killedWarning->setText(tr("Application finished before loading profiled data.\n Please use the stop button instead."));
+        killedWarning->setStandardButtons(QMessageBox::Ok);
+        killedWarning->setDefaultButton(QMessageBox::Ok);
+        killedWarning->setModal(false);
+        killedWarning->show();
+    }
+
     d->m_running = false;
     AnalyzerManager::stopTool(); // FIXME: Needed?
     emit finished();

src/plugins/qmlprofiler/qmlprofilereventview.cpp

@@ -125,11 +125,16 @@ void QmlProfilerEventStatistics::clear()
     d->m_rootHash.clear();
 }
 
-QList <QmlEventData *> QmlProfilerEventStatistics::getEventList()
+QList <QmlEventData *> QmlProfilerEventStatistics::getEventList() const
 {
     return d->m_rootHash.values();
 }
 
+int QmlProfilerEventStatistics::eventCount() const
+{
+    return d->m_rootHash.size();
+}
+
 void QmlProfilerEventStatistics::addRangedEvent(int type, int nestingLevel, int nestingInType, qint64 startTime, qint64 length,
                                                 const QStringList &data, const QString &fileName, int line)
 {

src/plugins/qmlprofiler/qmlprofilereventview.h

@@ -85,7 +85,8 @@ public:
     explicit QmlProfilerEventStatistics(QObject *parent = 0);
     ~QmlProfilerEventStatistics();
 
-    QmlEventList getEventList();
+    QmlEventList getEventList() const;
+    int eventCount() const;
 
 signals:
     void dataReady();

src/plugins/qmlprofiler/qmlprofilertool.cpp

@@ -217,6 +217,7 @@ IAnalyzerEngine *QmlProfilerTool::createEngine(const AnalyzerStartParameters &sp
 
     connect(engine, SIGNAL(processRunning(int)), this, SLOT(connectClient(int)));
     connect(engine, SIGNAL(finished()), this, SLOT(disconnectClient()));
+    connect(engine, SIGNAL(finished()), this, SLOT(correctTimer()));
     connect(engine, SIGNAL(stopRecording()), this, SLOT(stopRecording()));
     connect(d->m_traceWindow, SIGNAL(viewUpdated()), engine, SLOT(dataReceived()));
     connect(this, SIGNAL(connectionFailed()), engine, SLOT(finishProcess()));
@@ -335,8 +336,9 @@ QWidget *QmlProfilerTool::createWidgets()
     palette.setColor(QPalette::WindowText, Qt::white);
     timeLabel->setPalette(palette);
     timeLabel->setIndent(10);
-
+    connect(d->m_traceWindow, SIGNAL(viewUpdated()), this, SLOT(correctTimer()));
     connect(this, SIGNAL(setTimeLabel(QString)), timeLabel, SLOT(setText(QString)));
+    correctTimer();
     layout->addWidget(timeLabel);
 
     toolbarWidget->setLayout(layout);
@@ -432,6 +434,11 @@ void QmlProfilerTool::gotoSourceLocation(const QString &fileUrl, int lineNumber)
     }
 }
 
+void QmlProfilerTool::correctTimer() {
+    if (d->m_statistics->eventCount() == 0)
+        updateTimer(0);
+}
+
 void QmlProfilerTool::updateTimer(qreal elapsedSeconds)
 {
     QString timeString = QString::number(elapsedSeconds,'f',1);

src/plugins/qmlprofiler/qmlprofilertool.h

@@ -72,6 +72,7 @@ public slots:
 
     void gotoSourceLocation(const QString &fileUrl, int lineNumber);
     void updateTimer(qreal elapsedSeconds);
+    void correctTimer();
 
     void clearDisplay();