QmlProfiler: tooltips for the labels column

Due to space restrictions, the descriptive text of events
in the labels column of the timeline view are elided.  This
patch adds tooltips on mouseover with location and details.

Change-Id: I229988e114f21e4d9575dff137aa91918ad1afa3
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/libs/qmljsdebugclient/qmlprofilereventlist.cpp

@@ -1672,6 +1672,12 @@ QString QmlProfilerEventList::eventTextForType(int type, int index) const {
     return d->m_eventDescriptions.values().at(d->m_typeCounts[type]->eventIds[index])->details;
 }
 
+QString QmlProfilerEventList::eventDisplayNameForType(int type, int index) const {
+    if (!d->m_typeCounts.contains(type))
+        return QString();
+    return d->m_eventDescriptions.values().at(d->m_typeCounts[type]->eventIds[index])->displayname;
+}
+
 int QmlProfilerEventList::eventIdForType(int type, int index) const {
     if (!d->m_typeCounts.contains(type))
         return -1;

src/libs/qmljsdebugclient/qmlprofilereventlist.h

@@ -150,6 +150,7 @@ public:
     Q_INVOKABLE int uniqueEventsOfType(int type) const;
     Q_INVOKABLE int maxNestingForType(int type) const;
     Q_INVOKABLE QString eventTextForType(int type, int index) const;
+    Q_INVOKABLE QString eventDisplayNameForType(int type, int index) const;
     Q_INVOKABLE int eventIdForType(int type, int index) const;
     Q_INVOKABLE int eventPosInType(int index) const;
 

src/plugins/qmlprofiler/qml/Label.qml

@@ -39,6 +39,7 @@ Item {
     property int typeIndex: index
 
     property variant descriptions: []
+    property variant extdescriptions: []
     property variant eventIds: []
 
     height: root.singleRowHeight
@@ -67,17 +68,21 @@ Item {
         onDataReady: {
             var desc=[];
             var ids=[];
+            var extdesc=[];
             for (var i=0; i<qmlEventList.uniqueEventsOfType(typeIndex); i++) {
                 desc[i] = qmlEventList.eventTextForType(typeIndex, i);
                 ids[i] = qmlEventList.eventIdForType(typeIndex, i);
+                extdesc[i] = qmlEventList.eventDisplayNameForType(typeIndex, i) + " : " + desc[i];
             }
             descriptions = desc;
             eventIds = ids;
+            extdescriptions = extdesc;
             updateHeight();
         }
         onDataClear: {
             descriptions = [];
             eventIds = [];
+            extdescriptions = [];
             updateHeight();
         }
     }
@@ -121,6 +126,9 @@ Item {
                 }
                 MouseArea {
                     anchors.fill: parent
+                    hoverEnabled: true
+                    onEntered: changeToolTip(extdescriptions[index]);
+                    onExited: changeToolTip("");
                     onClicked: {
                         if (mouse.modifiers & Qt.ShiftModifier)
                             view.selectPrevFromId(eventIds[index]);

src/plugins/qmlprofiler/qml/MainView.qml

@@ -73,6 +73,8 @@ Rectangle {
     property variant selectionRangeStart: selectionRange.startTime
     property variant selectionRangeEnd: selectionRange.startTime + selectionRange.duration
 
+    signal changeToolTip(string text)
+
     // ***** connections with external objects
     Connections {
         target: zoomControl

src/plugins/qmlprofiler/tracewindow.cpp

@@ -296,6 +296,7 @@ void TraceWindow::reset(QDeclarativeDebugConnection *conn)
     connect(this, SIGNAL(globalZoom()), m_mainView->rootObject(), SLOT(globalZoom()));
     connect(this, SIGNAL(selectNextEventInDisplay(QVariant)), m_mainView->rootObject(), SLOT(selectNextWithId(QVariant)));
     connect(m_mainView->rootObject(), SIGNAL(selectedEventIdChanged(int)), this, SIGNAL(selectedEventIdChanged(int)));
+    connect(m_mainView->rootObject(), SIGNAL(changeToolTip(QString)), this, SLOT(updateToolTip(QString)));
 
     connect(this, SIGNAL(internalClearDisplay()), m_mainView->rootObject(), SLOT(clearAll()));
     connect(this,SIGNAL(internalClearDisplay()), m_overview->rootObject(), SLOT(clearDisplay()));
@@ -563,5 +564,10 @@ void TraceWindow::updateProfilerState()
     emit profilerStateChanged(qmlActive, v8Active);
 }
 
+void TraceWindow::updateToolTip(QString text)
+{
+    setToolTip(text);
+}
+
 } // namespace Internal
 } // namespace QmlProfiler

src/plugins/qmlprofiler/tracewindow.h

@@ -126,6 +126,7 @@ public slots:
     void v8Complete();
     void selectNextEvent(int eventId);
     void updateProfilerState();
+    void updateToolTip(QString text);
 
 signals:
     void viewUpdated();