use nullptr consistently (clang-tidy)

From now on we prefer nullptr instead of 0 to clarify cases where
we are assigning or testing a pointer rather than a numeric zero.

Also, replaced cases where 0 was passed as Qt::KeyboardModifiers
with Qt::NoModifier (clang-tidy replaced them with nullptr, which
waas wrong, so it was just as well to make the tests more readable
rather than to revert those lines).

Change-Id: I4735d35e4d9f42db5216862ce091429eadc6e65d
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 7 insertions, 7 deletions

diff --git a/src/quick/items/qquickitemgrabresult.cpp b/src/quick/items/qquickitemgrabresult.cpp
index c3f8d4f024..003fde8c9e 100644
--- a/src/quick/items/qquickitemgrabresult.cpp
+++ b/src/quick/items/qquickitemgrabresult.cpp
@@ -62,9 +62,9 @@ class QQuickItemGrabResultPrivate : public QObjectPrivate
 {
 public:
     QQuickItemGrabResultPrivate()
-        : cacheEntry(0)
-        , qmlEngine(0)
-        , texture(0)
+        : cacheEntry(nullptr)
+        , qmlEngine(nullptr)
+        , texture(nullptr)
     {
     }
 
@@ -266,7 +266,7 @@ void QQuickItemGrabResult::render()
     d->image =  d->texture->toImage();
 
     delete d->texture;
-    d->texture = 0;
+    d->texture = nullptr;
 
     disconnect(d->window.data(), &QQuickWindow::beforeSynchronizing, this, &QQuickItemGrabResult::setup);
     disconnect(d->window.data(), &QQuickWindow::afterRendering, this, &QQuickItemGrabResult::render);
@@ -281,17 +281,17 @@ QQuickItemGrabResult *QQuickItemGrabResultPrivate::create(QQuickItem *item, cons
 
     if (size.width() < 1 || size.height() < 1) {
         qmlWarning(item) << "grabToImage: item has invalid dimensions";
-        return 0;
+        return nullptr;
     }
 
     if (!item->window()) {
         qmlWarning(item) << "grabToImage: item is not attached to a window";
-        return 0;
+        return nullptr;
     }
 
     if (!item->window()->isVisible()) {
         qmlWarning(item) << "grabToImage: item's window is not visible";
-        return 0;
+        return nullptr;
     }
 
     QQuickItemGrabResult *result = new QQuickItemGrabResult();