Another round of replacing 0 with nullptr

This time based on grepping to also include documentation, tests and
examples previously missed by the automatic tool.

Change-Id: Ied1703f4bcc470fbc275f759ed5b7c588a5c4e9f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

4 files changed, 19 insertions, 19 deletions

diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index a03de6e7f2..7f7bcefb7a 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -2516,7 +2516,7 @@ bool QComboBoxPrivate::showNativePopup()
     int itemsCount = q->count();
     m_platformMenu->setTag(quintptr(itemsCount));
 
-    QPlatformMenuItem *currentItem = 0;
+    QPlatformMenuItem *currentItem = nullptr;
     int currentIndex = q->currentIndex();
 
     for (int i = 0; i < itemsCount; ++i) {
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index 6f5f345a40..548078098c 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -295,7 +295,7 @@ bool QDockWidgetLayout::wmSupportsNativeWindowDeco()
  */
 bool QDockWidgetLayout::nativeWindowDeco(bool floating) const
 {
-    return wmSupportsNativeWindowDeco() && floating && item_list.at(QDockWidgetLayout::TitleBar) == 0;
+    return wmSupportsNativeWindowDeco() && floating && item_list.at(QDockWidgetLayout::TitleBar) == nullptr;
 }
 
 
@@ -919,7 +919,7 @@ bool QDockWidgetPrivate::mousePressEvent(QMouseEvent *event)
             // check if the tool window is movable... do nothing if it
             // is not (but allow moving if the window is floating)
             (!hasFeature(this, QDockWidget::DockWidgetMovable) && !q->isFloating()) ||
-            (qobject_cast<QMainWindow*>(parent) == 0 && !floatingTab) ||
+            (qobject_cast<QMainWindow*>(parent) == nullptr && !floatingTab) ||
             isAnimating() || state != nullptr) {
             return false;
         }
@@ -1032,7 +1032,7 @@ void QDockWidgetPrivate::nonClientAreaMouseEvent(QMouseEvent *event)
                 break;
             if (state != nullptr)
                 break;
-            if (qobject_cast<QMainWindow*>(parent) == 0 && qobject_cast<QDockWidgetGroupWindow*>(parent) == 0)
+            if (qobject_cast<QMainWindow*>(parent) == nullptr && qobject_cast<QDockWidgetGroupWindow*>(parent) == nullptr)
                 break;
             if (isAnimating())
                 break;
@@ -1083,7 +1083,7 @@ void QDockWidgetPrivate::moveEvent(QMoveEvent *event)
     if (state == nullptr || !state->dragging || !state->nca)
         return;
 
-    if (!q->isWindow() && qobject_cast<QDockWidgetGroupWindow*>(parent) == 0)
+    if (!q->isWindow() && qobject_cast<QDockWidgetGroupWindow*>(parent) == nullptr)
         return;
 
     // When the native window frame is being dragged, all we get is these mouse
diff --git a/src/widgets/widgets/qlcdnumber.cpp b/src/widgets/widgets/qlcdnumber.cpp
index 4d299d8739..929b57a1e1 100644
--- a/src/widgets/widgets/qlcdnumber.cpp
+++ b/src/widgets/widgets/qlcdnumber.cpp
@@ -52,7 +52,7 @@ public:
     void init();
     void internalSetString(const QString& s);
     void drawString(const QString& s, QPainter &, QBitArray * = nullptr, bool = true);
-    //void drawString(const QString &, QPainter &, QBitArray * = 0) const;
+    //void drawString(const QString &, QPainter &, QBitArray * = nullptr) const;
     void drawDigit(const QPoint &, QPainter &, int, char, char = ' ');
     void drawSegment(const QPoint &, char, QPainter &, int, bool = false);
 
diff --git a/src/widgets/widgets/qmainwindowlayout.cpp b/src/widgets/widgets/qmainwindowlayout.cpp
index 76d9a33e06..95ee90eb31 100644
--- a/src/widgets/widgets/qmainwindowlayout.cpp
+++ b/src/widgets/widgets/qmainwindowlayout.cpp
@@ -646,7 +646,7 @@ QSize QMainWindowLayoutState::sizeHint() const
 #if QT_CONFIG(dockwidget)
     result = dockAreaLayout.sizeHint();
 #else
-    if (centralWidgetItem != 0)
+    if (centralWidgetItem)
         result = centralWidgetItem->sizeHint();
 #endif
 
@@ -664,7 +664,7 @@ QSize QMainWindowLayoutState::minimumSize() const
 #if QT_CONFIG(dockwidget)
     result = dockAreaLayout.minimumSize();
 #else
-    if (centralWidgetItem != 0)
+    if (centralWidgetItem)
         result = centralWidgetItem->minimumSize();
 #endif
 
@@ -685,9 +685,9 @@ void QMainWindowLayoutState::apply(bool animated)
 //    dumpLayout(dockAreaLayout, QString());
     dockAreaLayout.apply(animated);
 #else
-    if (centralWidgetItem != 0) {
+    if (centralWidgetItem) {
         QMainWindowLayout *layout = qt_mainwindow_layout(mainWindow);
-        Q_ASSERT(layout != 0);
+        Q_ASSERT(layout);
         layout->widgetAnimator.animate(centralWidgetItem->widget(), centralWidgetRect, animated);
     }
 #endif
@@ -744,7 +744,7 @@ QLayoutItem *QMainWindowLayoutState::itemAt(int index, int *x) const
     if (QLayoutItem *ret = dockAreaLayout.itemAt(x, index))
         return ret;
 #else
-    if (centralWidgetItem != 0 && (*x)++ == index)
+    if (centralWidgetItem  && (*x)++ == index)
         return centralWidgetItem;
 #endif
 
@@ -762,9 +762,9 @@ QLayoutItem *QMainWindowLayoutState::takeAt(int index, int *x)
     if (QLayoutItem *ret = dockAreaLayout.takeAt(x, index))
         return ret;
 #else
-    if (centralWidgetItem != 0 && (*x)++ == index) {
+    if (centralWidgetItem && (*x)++ == index) {
         QLayoutItem *ret = centralWidgetItem;
-        centralWidgetItem = 0;
+        centralWidgetItem = nullptr;
         return ret;
     }
 #endif
@@ -807,7 +807,7 @@ bool QMainWindowLayoutState::contains(QWidget *widget) const
     if (!dockAreaLayout.indexOf(widget).isEmpty())
         return true;
 #else
-    if (centralWidgetItem != 0 && centralWidgetItem->widget() == widget)
+    if (centralWidgetItem && centralWidgetItem->widget() == widget)
         return true;
 #endif
 
@@ -856,7 +856,7 @@ QList<int> QMainWindowLayoutState::gapIndex(QWidget *widget,
 
 #if QT_CONFIG(toolbar)
     // is it a toolbar?
-    if (qobject_cast<QToolBar*>(widget) != 0) {
+    if (qobject_cast<QToolBar*>(widget) != nullptr) {
         result = toolBarAreaLayout.gapIndex(pos);
         if (!result.isEmpty())
             result.prepend(0);
@@ -866,7 +866,7 @@ QList<int> QMainWindowLayoutState::gapIndex(QWidget *widget,
 
 #if QT_CONFIG(dockwidget)
     // is it a dock widget?
-    if (qobject_cast<QDockWidget *>(widget) != 0
+    if (qobject_cast<QDockWidget *>(widget) != nullptr
             || qobject_cast<QDockWidgetGroupWindow *>(widget)) {
         bool disallowTabs = false;
 #if QT_CONFIG(tabbar)
@@ -894,7 +894,7 @@ bool QMainWindowLayoutState::insertGap(const QList<int> &path, QLayoutItem *item
 
 #if QT_CONFIG(toolbar)
     if (i == 0) {
-        Q_ASSERT(qobject_cast<QToolBar*>(item->widget()) != 0);
+        Q_ASSERT(qobject_cast<QToolBar*>(item->widget()) != nullptr);
         return toolBarAreaLayout.insertGap(path.mid(1), item);
     }
 #endif
@@ -2155,7 +2155,7 @@ bool QMainWindowLayout::plug(QLayoutItem *widgetItem)
     QRect globalRect = currentGapRect;
     globalRect.moveTopLeft(parentWidget()->mapToGlobal(globalRect.topLeft()));
 #if QT_CONFIG(dockwidget)
-    if (qobject_cast<QDockWidget*>(widget) != 0) {
+    if (qobject_cast<QDockWidget*>(widget) != nullptr) {
         QDockWidgetLayout *layout = qobject_cast<QDockWidgetLayout*>(widget->layout());
         if (layout->nativeWindowDeco()) {
             globalRect.adjust(0, layout->titleHeight(), 0, 0);
@@ -2262,7 +2262,7 @@ void QMainWindowLayout::animationFinished(QWidget *widget)
 
 #if QT_CONFIG(dockwidget)
 #if QT_CONFIG(tabbar)
-        if (qobject_cast<QDockWidget*>(widget) != 0) {
+        if (qobject_cast<QDockWidget*>(widget) != nullptr) {
             // info() might return null if the widget is destroyed while
             // animating but before the animationFinished signal is received.
             if (QDockAreaLayoutInfo *info = dockInfo(widget))