QmlProfiler: remove useless signals

Sending a signal for every model when clearing or loading data is not
very smart.

Change-Id: Ifc81d74f6b7f93bcd6748a919dfb553050b8d725
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

src/plugins/qmlprofiler/abstracttimelinemodel.cpp

@@ -192,11 +192,6 @@ void AbstractTimelineModel::dataChanged()
     default:
         break;
     }
-
-    emit stateChanged();
-    emit dataAvailable();
-    emit emptyChanged();
-    emit expandedChanged();
 }
 
 bool AbstractTimelineModel::eventAccepted(const QmlProfilerDataModel::QmlEventTypeData &event) const

src/plugins/qmlprofiler/abstracttimelinemodel.h

@@ -90,9 +90,6 @@ public:
     Q_INVOKABLE virtual float getHeight(int index) const;
 
 signals:
-    void dataAvailable();
-    void stateChanged();
-    void emptyChanged();
     void expandedChanged();
 
 protected:

src/plugins/qmlprofiler/qml/CategoryLabel.qml

@@ -53,6 +53,8 @@ Item {
     }
 
     function getDescriptions() {
+        expanded = qmlProfilerModelProxy.expanded(modelIndex);
+        backgroundMarks.requestPaint();
         visible = qmlProfilerModelProxy.rowCount(modelIndex) > 0;
         if (!visible)
             return;
@@ -75,8 +77,6 @@ Item {
     Connections {
         target: qmlProfilerModelProxy
         onExpandedChanged: {
-            expanded = qmlProfilerModelProxy.expanded(modelIndex);
-            backgroundMarks.requestPaint();
             getDescriptions();
         }
 

src/plugins/qmlprofiler/timelinemodelaggregator.cpp

@@ -82,14 +82,15 @@ void TimelineModelAggregator::setModelManager(QmlProfilerModelManager *modelMana
         rangeModel->setModelManager(modelManager);
         addModel(rangeModel);
     }
+
+    // Connect this last so that it's executed after the models have updated their data.
+    connect(modelManager->qmlModel(),SIGNAL(changed()),this,SIGNAL(stateChanged()));
 }
 
 void TimelineModelAggregator::addModel(AbstractTimelineModel *m)
 {
     d->modelList << m;
-    connect(m,SIGNAL(emptyChanged()),this,SIGNAL(emptyChanged()));
     connect(m,SIGNAL(expandedChanged()),this,SIGNAL(expandedChanged()));
-    connect(m,SIGNAL(stateChanged()),this,SIGNAL(stateChanged()));
 }
 
 QStringList TimelineModelAggregator::categoryTitles() const

src/plugins/qmlprofiler/timelinemodelaggregator.h

@@ -92,7 +92,6 @@ public:
 signals:
     void dataAvailable();
     void stateChanged();
-    void emptyChanged();
     void expandedChanged();
 
 protected slots: