1 files changed, 15 insertions, 15 deletions

diff --git a/src/widgets/widgets/qlabel.cpp b/src/widgets/widgets/qlabel.cpp
index 5d09e14073..60f88df9af 100644
--- a/src/widgets/widgets/qlabel.cpp
+++ b/src/widgets/widgets/qlabel.cpp
@@ -288,7 +288,7 @@ void QLabel::setText(const QString &text)
         return;
 
     QWidgetTextControl *oldControl = d->control;
-    d->control = 0;
+    d->control = nullptr;
 
     d->clearContents();
     d->text = text;
@@ -303,7 +303,7 @@ void QLabel::setText(const QString &text)
         d->ensureTextControl();
     } else {
         delete d->control;
-        d->control = 0;
+        d->control = nullptr;
     }
 
     if (d->isRichText) {
@@ -714,7 +714,7 @@ void QLabel::setTextInteractionFlags(Qt::TextInteractionFlags flags)
         d->ensureTextControl();
     } else {
         delete d->control;
-        d->control = 0;
+        d->control = nullptr;
     }
 
     if (d->control)
@@ -1021,13 +1021,13 @@ void QLabel::paintEvent(QPaintEvent *)
         QStyleOption opt;
         opt.initFrom(this);
 #ifndef QT_NO_STYLE_STYLESHEET
-        if (QStyleSheetStyle* cssStyle = qobject_cast<QStyleSheetStyle*>(style)) {
+        if (QStyleSheetStyle* cssStyle = qt_styleSheet(style))
             cssStyle->styleSheetPalette(this, &opt, &opt.palette);
-        }
 #endif
         if (d->control) {
 #ifndef QT_NO_SHORTCUT
-            const bool underline = (bool)style->styleHint(QStyle::SH_UnderlineShortcut, 0, this, 0);
+            const bool underline = static_cast<bool>(style->styleHint(QStyle::SH_UnderlineShortcut,
+                                                                      nullptr, this, nullptr));
             if (d->shortcutId != 0
                 && underline != d->shortcutCursor.charFormat().fontUnderline()) {
                 QTextCharFormat fmt;
@@ -1294,20 +1294,20 @@ void QLabel::setMovie(QMovie *movie)
 void QLabelPrivate::clearContents()
 {
     delete control;
-    control = 0;
+    control = nullptr;
     isTextLabel = false;
     hasShortcut = false;
 
 #ifndef QT_NO_PICTURE
     delete picture;
-    picture = 0;
+    picture = nullptr;
 #endif
     delete scaledpixmap;
-    scaledpixmap = 0;
+    scaledpixmap = nullptr;
     delete cachedimage;
-    cachedimage = 0;
+    cachedimage = nullptr;
     delete pixmap;
-    pixmap = 0;
+    pixmap = nullptr;
 
     text.clear();
     Q_Q(QLabel);
@@ -1321,7 +1321,7 @@ void QLabelPrivate::clearContents()
         QObject::disconnect(movie, SIGNAL(resized(QSize)), q, SLOT(_q_movieResized(QSize)));
         QObject::disconnect(movie, SIGNAL(updated(QRect)), q, SLOT(_q_movieUpdated(QRect)));
     }
-    movie = 0;
+    movie = nullptr;
 #endif
 #ifndef QT_NO_CURSOR
     if (onAnchor) {
@@ -1428,9 +1428,9 @@ void QLabel::setScaledContents(bool enable)
     d->scaledcontents = enable;
     if (!enable) {
         delete d->scaledpixmap;
-        d->scaledpixmap = 0;
+        d->scaledpixmap = nullptr;
         delete d->cachedimage;
-        d->cachedimage = 0;
+        d->cachedimage = nullptr;
     }
     update(contentsRect());
 }
@@ -1629,7 +1629,7 @@ QMenu *QLabelPrivate::createStandardContextMenu(const QPoint &pos)
     }
 
     if (linkToCopy.isEmpty() && !control)
-        return 0;
+        return nullptr;
 
     return control->createStandardContextMenu(p, q_func());
 }