Remove non-functional tracking of profiler root's vertical scroll

Vertical scrolling doesn't work at the moment and has to be implemented
in a different way. Besides, the code tracking the root's vertical
scroll hasn't done anything useful in a long time.

Change-Id: If2add3874cba971bbaace2c22fbf1b2bf0b463b7
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Ulf Hermann <ulf.hermann@digia.com>

src/plugins/qmlprofiler/qml/MainView.qml

@@ -35,8 +35,6 @@ Rectangle {
 
     // ***** properties
 
-    property int scrollY: 0
-
     property int singleRowHeight: 30
 
     property bool dataAvailable: true
@@ -64,7 +62,6 @@ Rectangle {
     property real selectionRangeEnd: selectionRange.startTime + selectionRange.duration
 
     signal changeToolTip(string text)
-    signal updateVerticalScroll(int newPosition)
 
     property bool recordingEnabled: false
     property bool appKilled : false
@@ -458,18 +455,6 @@ Rectangle {
                         zoomControl.setRange(from, from + windowLength);
 
                     }
-
-                    // center view (vertically)
-                    var itemY = view.getYPosition(selectedModel, selectedItem);
-                    if (itemY < root.scrollY) {
-                        root.updateVerticalScroll(itemY);
-                    } else
-                        if (itemY + root.singleRowHeight >
-                                root.scrollY + root.height) {
-                            root.updateVerticalScroll(itemY + root.singleRowHeight -
-                                                      root.height);
-                    }
-
                 } else {
                     root.hideRangeDetails();
                 }
@@ -585,7 +570,7 @@ Rectangle {
     }
 
     Rectangle {
-        y: root.scrollY + root.height - height
+        y: root.height - height
         height: 6
         width: root.width
         x: 0

src/plugins/qmlprofiler/qml/RangeDetails.qml

@@ -50,14 +50,6 @@ Item {
     x: 200
     y: 25
 
-    property int yoffset: root.scrollY
-    onYoffsetChanged: {
-        y = relativey + yoffset
-        fitInView();
-    }
-    property int relativey : y - yoffset
-    onYChanged: relativey = y - yoffset
-
     // keep inside view
     Connections {
         target: root
@@ -104,10 +96,10 @@ Item {
             x = root.width - width;
         if (x < 0)
             x = 0;
-        if (y - yoffset + height > root.height)
+        if (y + height > root.height)
-            y = root.height - height + yoffset;
+            y = root.height - height;
-        if (y < yoffset)
+        if (y < 0)
-            y = yoffset;
+            y = 0;
     }
 
     // shadow
@@ -192,8 +184,8 @@ Item {
         drag.target: parent
         drag.minimumX: 0
         drag.maximumX: root.width - parent.width
-        drag.minimumY: yoffset
+        drag.minimumY: 0
-        drag.maximumY: root.height - parent.height + yoffset
+        drag.maximumY: root.height - parent.height
         onClicked: {
             root.gotoSourceLocation(file, line, column);
             root.recenterOnItem(view.selectedModel, view.selectedItem);

src/plugins/qmlprofiler/qml/SelectionRangeDetails.qml

@@ -45,14 +45,6 @@ Item {
     x: 200
     y: 125
 
-    property int yoffset: root.scrollY
-    onYoffsetChanged: {
-        y = relativey + yoffset
-        fitInView();
-    }
-    property int relativey : y - yoffset
-    onYChanged: relativey = y - yoffset
-
     // keep inside view
     Connections {
         target: root
@@ -69,10 +61,10 @@ Item {
             x = root.width - width;
         if (x < 0)
             x = 0;
-        if (y + height - yoffset > root.height)
+        if (y + height > root.height)
-            y = root.height - height + yoffset;
+            y = root.height - height;
-        if (y < yoffset)
+        if (y < 0)
-            y = yoffset;
+            y = 0;
     }
 
     // shadow
@@ -161,8 +153,8 @@ Item {
         drag.target: parent
         drag.minimumX: 0
         drag.maximumX: root.width - parent.width
-        drag.minimumY: yoffset
+        drag.minimumY: 0
-        drag.maximumY: root.height - parent.height + yoffset
+        drag.maximumY: root.height - parent.height + 0
         onClicked: {
             if ((selectionRange.x < flick.contentX) ^ (selectionRange.x+selectionRange.width > flick.contentX + flick.width)) {
                 root.recenter(selectionRange.startTime + selectionRange.duration/2);

src/plugins/qmlprofiler/qmlprofilertraceview.cpp

@@ -238,7 +238,6 @@ void QmlProfilerTraceView::reset()
     connect(this, SIGNAL(jumpToNext()), rootObject, SLOT(nextEvent()));
     connect(rootObject, SIGNAL(selectedEventChanged(int)), this, SIGNAL(selectedEventChanged(int)));
     connect(rootObject, SIGNAL(changeToolTip(QString)), this, SLOT(updateToolTip(QString)));
-    connect(rootObject, SIGNAL(updateVerticalScroll(int)), this, SLOT(updateVerticalScroll(int)));
 }
 
 QWidget *QmlProfilerTraceView::createToolbar()
@@ -373,8 +372,6 @@ qint64 QmlProfilerTraceView::selectionEnd() const
 void QmlProfilerTraceView::clearDisplay()
 {
     d->m_zoomControl->setRange(0,0);
-
-    updateVerticalScroll(0);
     d->m_mainView->rootObject()->setProperty("scrollY", QVariant(0));
 
     QMetaObject::invokeMethod(d->m_mainView->rootObject(), "clearAll");
@@ -496,10 +493,6 @@ void QmlProfilerTraceView::updateToolTip(const QString &text)
     setToolTip(text);
 }
 
-void QmlProfilerTraceView::updateVerticalScroll(int /*newPosition*/)
-{
-}
-
 void QmlProfilerTraceView::resizeEvent(QResizeEvent *event)
 {
     QWidget::resizeEvent(event);

src/plugins/qmlprofiler/qmlprofilertraceview.h

@@ -117,7 +117,6 @@ private slots:
     void mouseWheelMoved(int mouseX, int mouseY, int wheelDelta);
 
     void updateToolTip(const QString &text);
-    void updateVerticalScroll(int newPosition);
     void profilerDataModelStateChanged();
 
 protected: