Cleanup Widgets examples - nullptr

Cleanup the widgets examples - replace 0 with nullptr

Change-Id: Id4bf119b9a41f6d10117f3a613a6e604128fa196
Reviewed-by: Konstantin Shegunov <kshegunov@gmail.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

2 files changed, 7 insertions, 7 deletions

diff --git a/examples/widgets/mainwindows/mainwindow/colorswatch.cpp b/examples/widgets/mainwindows/mainwindow/colorswatch.cpp
index 720f9a2085..240a04c897 100644
--- a/examples/widgets/mainwindows/mainwindow/colorswatch.cpp
+++ b/examples/widgets/mainwindows/mainwindow/colorswatch.cpp
@@ -584,7 +584,7 @@ void ColorSwatch::changeVerticalTitleBar(bool on)
 QSize BlueTitleBar::minimumSizeHint() const
 {
     QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
-    Q_ASSERT(dw != 0);
+    Q_ASSERT(dw);
     QSize result(leftPm.width() + rightPm.width(), centerPm.height());
     if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar)
         result.transpose();
@@ -605,7 +605,7 @@ void BlueTitleBar::paintEvent(QPaintEvent*)
     QRect rect = this->rect();
 
     QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
-    Q_ASSERT(dw != 0);
+    Q_ASSERT(dw);
 
     if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
         QSize s = rect.size();
@@ -632,7 +632,7 @@ void BlueTitleBar::mouseReleaseEvent(QMouseEvent *event)
     QRect rect = this->rect();
 
     QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
-    Q_ASSERT(dw != 0);
+    Q_ASSERT(dw);
 
     if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
         QPoint p = pos;
@@ -676,7 +676,7 @@ void BlueTitleBar::mouseReleaseEvent(QMouseEvent *event)
 void BlueTitleBar::updateMask()
 {
     QDockWidget *dw = qobject_cast<QDockWidget*>(parent());
-    Q_ASSERT(dw != 0);
+    Q_ASSERT(dw);
 
     QRect rect = dw->rect();
     QPixmap bitmap(dw->size());
diff --git a/examples/widgets/mainwindows/mainwindow/toolbar.cpp b/examples/widgets/mainwindows/mainwindow/toolbar.cpp
index 7c96f5b1be..096d3df5a8 100644
--- a/examples/widgets/mainwindows/mainwindow/toolbar.cpp
+++ b/examples/widgets/mainwindows/mainwindow/toolbar.cpp
@@ -208,7 +208,7 @@ ToolBar::ToolBar(const QString &title, QWidget *parent)
 void ToolBar::updateMenu()
 {
     QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());
-    Q_ASSERT(mainWindow != 0);
+    Q_ASSERT(mainWindow);
 
     const Qt::ToolBarArea area = mainWindow->toolBarArea(this);
     const Qt::ToolBarAreas areas = allowedAreas();
@@ -313,7 +313,7 @@ void ToolBar::place(Qt::ToolBarArea area, bool p)
         return;
 
     QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());
-    Q_ASSERT(mainWindow != 0);
+    Q_ASSERT(mainWindow);
 
     mainWindow->addToolBar(area, this);
 
@@ -355,7 +355,7 @@ void ToolBar::placeBottom(bool p)
 void ToolBar::insertToolBarBreak()
 {
     QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());
-    Q_ASSERT(mainWindow != 0);
+    Q_ASSERT(mainWindow);
 
     mainWindow->insertToolBarBreak(this);
 }