QmlProfiler: fix progress bar visibilty for loading traces

Move the main part of the loading work into a background thread
and show the standard progress indicator for the "reading file"
part of the load operation.
The load operation can be canceled now.

Change-Id: I4cb3b762072ab4a0665dcf9d4a39d6d6630d22e8
Task-number: QTCREATORBUG-11822
Reviewed-by: Ulf Hermann <ulf.hermann@theqtcompany.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/plugins/qmlprofiler/qmlprofilertracefile.h b/src/plugins/qmlprofiler/qmlprofilertracefile.h
index 992b2632785..e87cd15c47f 100644
--- a/src/plugins/qmlprofiler/qmlprofilertracefile.h
+++ b/src/plugins/qmlprofiler/qmlprofilertracefile.h
@@ -58,6 +58,7 @@ public:
 
     void setV8DataModel(QV8ProfilerDataModel *dataModel);
     void setQmlDataModel(QmlProfilerDataModel *dataModel);
+    void setFuture(QFutureInterface<void> *future);
 
     bool load(QIODevice *device);
 
@@ -68,9 +69,12 @@ private:
     void loadEventData(QXmlStreamReader &reader);
     void loadProfilerDataModel(QXmlStreamReader &reader);
     void loadNoteData(QXmlStreamReader &reader);
+    void progress(QIODevice *device);
+    bool isCanceled() const;
 
     QV8ProfilerDataModel *m_v8Model;
     QmlProfilerDataModel *m_qmlModel;
+    QFutureInterface<void> *m_future;
     QVector<QmlProfilerDataModel::QmlEventTypeData> m_qmlEvents;
     QVector<QmlProfilerDataModel::QmlEventData> m_ranges;
     QVector<QmlProfilerDataModel::QmlEventNoteData> m_notes;