Some clang-tidy -use-modernize-nullptr

Change-Id: I1bed5e85a5b7948d08502a72a10f80baa075c204
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/libs/tracing/timelineabstractrenderer.cpp

@@ -28,7 +28,7 @@
 namespace Timeline {
 
 TimelineAbstractRenderer::TimelineAbstractRendererPrivate::TimelineAbstractRendererPrivate() :
-    selectedItem(-1), selectionLocked(true), model(0), notes(0), zoomer(0), modelDirty(false),
+    selectedItem(-1), selectionLocked(true), model(nullptr), notes(nullptr), zoomer(nullptr), modelDirty(false),
     rowHeightsDirty(false), notesDirty(false)
 {
 }

src/libs/tracing/timelineitemsrenderpass.cpp

@@ -273,7 +273,7 @@ OpaqueColoredPoint2DWithSize *OpaqueColoredPoint2DWithSize::fromVertexData(QSGGe
     return static_cast<OpaqueColoredPoint2DWithSize *>(geometry->vertexData());
 }
 
-TimelineItemsGeometry::TimelineItemsGeometry() : usedVertices(0), node(0)
+TimelineItemsGeometry::TimelineItemsGeometry() : usedVertices(0), node(nullptr)
 {
     initNodes();
 }
@@ -392,7 +392,7 @@ TimelineRenderPass::State *TimelineItemsRenderPass::update(const TimelineAbstrac
                                                            QColor(Qt::blue)).lighter(130);
 
     TimelineItemsRenderPassState *state;
-    if (oldState == 0)
+    if (oldState == nullptr)
         state = new TimelineItemsRenderPassState(model);
     else
         state = static_cast<TimelineItemsRenderPassState *>(oldState);
@@ -472,7 +472,7 @@ void TimelineItemsMaterialShader::updateState(const RenderState &state, QSGMater
 
 char const *const *TimelineItemsMaterialShader::attributeNames() const
 {
-    static const char *const attr[] = {"vertexCoord", "rectSize", "selectionId", "vertexColor", 0};
+    static const char *const attr[] = {"vertexCoord", "rectSize", "selectionId", "vertexColor", nullptr};
     return attr;
 }
 

src/libs/tracing/timelinenotesrenderpass.cpp

@@ -117,7 +117,7 @@ TimelineRenderPass::State *TimelineNotesRenderPass::update(const TimelineAbstrac
         return oldState;
 
     TimelineNotesRenderPassState *state;
-    if (oldState == 0) {
+    if (oldState == nullptr) {
         state = new TimelineNotesRenderPassState(model->expandedRowCount());
     } else {
         if (!stateChanged && !renderer->notesDirty())
@@ -253,7 +253,7 @@ void NotesMaterialShader::updateState(const RenderState &state, QSGMaterial *, Q
 
 char const *const *NotesMaterialShader::attributeNames() const
 {
-    static const char *const attr[] = {"vertexCoord", "distanceFromTop", 0};
+    static const char *const attr[] = {"vertexCoord", "distanceFromTop", nullptr};
     return attr;
 }
 

src/libs/tracing/timelineoverviewrenderer.cpp

@@ -34,7 +34,7 @@ TimelineOverviewRenderer::TimelineOverviewRenderer(QQuickItem *parent) :
 }
 
 TimelineOverviewRenderer::TimelineOverviewRendererPrivate::TimelineOverviewRendererPrivate() :
-    renderState(0)
+    renderState(nullptr)
 {
 }
 
@@ -50,15 +50,15 @@ QSGNode *TimelineOverviewRenderer::updatePaintNode(QSGNode *oldNode,
 
     if (!d->model || d->model->isEmpty() || !d->zoomer || d->zoomer->traceDuration() <= 0) {
         delete oldNode;
-        return 0;
+        return nullptr;
     }
 
     if (d->modelDirty) {
         delete d->renderState;
-        d->renderState = 0;
+        d->renderState = nullptr;
     }
 
-    if (d->renderState == 0) {
+    if (d->renderState == nullptr) {
         d->renderState = new TimelineRenderState(d->zoomer->traceStart(), d->zoomer->traceEnd(),
                                                  1.0, d->renderPasses.size());
     }
@@ -77,7 +77,7 @@ QSGNode *TimelineOverviewRenderer::updatePaintNode(QSGNode *oldNode,
     if (d->renderState->isEmpty())
         d->renderState->assembleNodeTree(d->model, d->model->height(), 0);
 
-    TimelineAbstractRenderer::updatePaintNode(0, updatePaintNodeData);
+    TimelineAbstractRenderer::updatePaintNode(nullptr, updatePaintNodeData);
 
     QMatrix4x4 matrix;
     matrix.scale(xSpacing, ySpacing, 1);

src/libs/tracing/timelinerenderer.cpp

@@ -43,7 +43,7 @@
 
 namespace Timeline {
 
-TimelineRenderer::TimelineRendererPrivate::TimelineRendererPrivate() : lastState(0)
+TimelineRenderer::TimelineRendererPrivate::TimelineRendererPrivate() : lastState(nullptr)
 {
     resetCurrentSelection();
 }
@@ -58,7 +58,7 @@ void TimelineRenderer::TimelineRendererPrivate::clear()
     for (auto i = renderStates.begin(); i != renderStates.end(); ++i)
         qDeleteAll(*i);
     renderStates.clear();
-    lastState = 0;
+    lastState = nullptr;
 }
 
 TimelineRenderer::TimelineRenderer(QQuickItem *parent) :
@@ -102,7 +102,7 @@ TimelineRenderState *TimelineRenderer::TimelineRendererPrivate::findRenderState(
     if (renderStates.length() <= level)
         renderStates.resize(level + 1);
     TimelineRenderState *state = renderStates[level][offset];
-    if (state == 0) {
+    if (state == nullptr) {
         state = new TimelineRenderState(start, end, 1.0 / static_cast<qreal>(SafeFloatMax),
                                         renderPasses.size());
         renderStates[level][offset] = state;
@@ -117,7 +117,7 @@ QSGNode *TimelineRenderer::updatePaintNode(QSGNode *node, UpdatePaintNodeData *u
     if (!d->model || d->model->hidden() || d->model->isEmpty() || !d->zoomer ||
             d->zoomer->windowDuration() <= 0) {
         delete node;
-        return 0;
+        return nullptr;
     }
 
     float spacing = static_cast<float>(width() / d->zoomer->windowDuration());
@@ -146,7 +146,7 @@ QSGNode *TimelineRenderer::updatePaintNode(QSGNode *node, UpdatePaintNodeData *u
                                         TimelineModel::defaultRowHeight());
     }
 
-    TimelineAbstractRenderer::updatePaintNode(0, updatePaintNodeData);
+    TimelineAbstractRenderer::updatePaintNode(nullptr, updatePaintNodeData);
     d->lastState = state;
 
     QMatrix4x4 matrix;

src/libs/tracing/timelinerenderpass.cpp

@@ -41,12 +41,12 @@ const QVector<QSGNode *> &TimelineRenderPass::State::collapsedRows() const
 
 QSGNode *TimelineRenderPass::State::expandedOverlay() const
 {
-    return 0;
+    return nullptr;
 }
 
 QSGNode *TimelineRenderPass::State::collapsedOverlay() const
 {
-    return 0;
+    return nullptr;
 }
 
 TimelineRenderPass::State::~State()

src/libs/tracing/timelinerenderstate.cpp

@@ -195,7 +195,7 @@ void TimelineRenderState::updateExpandedRowHeights(const TimelineModel *model, i
     Q_D(TimelineRenderState);
     int row = 0;
     qreal offset = 0;
-    for (QSGNode *rowNode = d->expandedRowRoot->firstChild(); rowNode != 0;
+    for (QSGNode *rowNode = d->expandedRowRoot->firstChild(); rowNode != nullptr;
          rowNode = rowNode->nextSibling()) {
         qreal rowHeight = model->expandedRowHeight(row++);
         QMatrix4x4 matrix;

src/libs/tracing/timelineselectionrenderpass.cpp

@@ -74,7 +74,7 @@ TimelineRenderPass::State *TimelineSelectionRenderPass::update(
 
     TimelineSelectionRenderPassState *state;
 
-    if (oldState == 0)
+    if (oldState == nullptr)
         state = new TimelineSelectionRenderPassState;
     else
         state = static_cast<TimelineSelectionRenderPassState *>(oldState);
@@ -153,7 +153,7 @@ TimelineSelectionRenderPass::TimelineSelectionRenderPass()
 }
 
 TimelineSelectionRenderPassState::TimelineSelectionRenderPassState() :
-    m_expandedOverlay(0), m_collapsedOverlay(0)
+    m_expandedOverlay(nullptr), m_collapsedOverlay(nullptr)
 {
     m_expandedOverlay = createSelectionNode(&m_material);
     m_collapsedOverlay = createSelectionNode(&m_material);