More nullptr usage in headers

Diff generated by running clang-tidy's modernize-use-nullptr checker on
the CMake-based Qt version.

Skipping src/3rdparty, examples/, tests/

Change-Id: Ib182074e2e2fd52f63093f73b3e2e4c0cb7af188
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

7 files changed, 11 insertions, 11 deletions

diff --git a/src/widgets/itemviews/qcolumnview_p.h b/src/widgets/itemviews/qcolumnview_p.h
index 7b36b1f3da..c60579255e 100644
--- a/src/widgets/itemviews/qcolumnview_p.h
+++ b/src/widgets/itemviews/qcolumnview_p.h
@@ -74,7 +74,7 @@ QT_BEGIN_NAMESPACE
 class QColumnViewPreviewColumn : public QAbstractItemView {
 
 public:
-    explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(0) {
+    explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(nullptr) {
     }
 
     void setPreviewWidget(QWidget *widget) {
@@ -186,7 +186,7 @@ class QColumnViewDelegate : public QItemDelegate
 {
 
 public:
-    explicit QColumnViewDelegate(QObject *parent = 0) : QItemDelegate(parent) {}
+    explicit QColumnViewDelegate(QObject *parent = nullptr) : QItemDelegate(parent) {}
     ~QColumnViewDelegate() {}
 
     void paint(QPainter *painter,
diff --git a/src/widgets/itemviews/qcolumnviewgrip_p.h b/src/widgets/itemviews/qcolumnviewgrip_p.h
index 5eb8012204..4311edbeb4 100644
--- a/src/widgets/itemviews/qcolumnviewgrip_p.h
+++ b/src/widgets/itemviews/qcolumnviewgrip_p.h
@@ -68,12 +68,12 @@ Q_SIGNALS:
     void gripMoved(int offset);
 
 public:
-    explicit QColumnViewGrip(QWidget *parent = 0);
+    explicit QColumnViewGrip(QWidget *parent = nullptr);
     ~QColumnViewGrip();
     int moveGrip(int offset);
 
 protected:
-    QColumnViewGrip(QColumnViewGripPrivate &, QWidget *parent = 0, Qt::WindowFlags f = 0);
+    QColumnViewGrip(QColumnViewGripPrivate &, QWidget *parent = nullptr, Qt::WindowFlags f = nullptr);
     void paintEvent(QPaintEvent *event) override;
     void mouseDoubleClickEvent(QMouseEvent *event) override;
     void mouseMoveEvent(QMouseEvent *event) override;
diff --git a/src/widgets/itemviews/qheaderview_p.h b/src/widgets/itemviews/qheaderview_p.h
index d9fc1baec5..766adef36d 100644
--- a/src/widgets/itemviews/qheaderview_p.h
+++ b/src/widgets/itemviews/qheaderview_p.h
@@ -102,7 +102,7 @@ public:
           lastSectionLogicalIdx(-1), // Only trust when we stretch last section
           sectionIndicatorOffset(0),
 #if QT_CONFIG(label)
-          sectionIndicator(0),
+          sectionIndicator(nullptr),
 #endif
           globalResizeMode(QHeaderView::Interactive),
           sectionStartposRecalc(true),
diff --git a/src/widgets/itemviews/qlistview_p.h b/src/widgets/itemviews/qlistview_p.h
index c6810f8fdc..86331bb862 100644
--- a/src/widgets/itemviews/qlistview_p.h
+++ b/src/widgets/itemviews/qlistview_p.h
@@ -248,7 +248,7 @@ private:
 class QIconModeViewBase : public QCommonListViewBase
 {
 public:
-    QIconModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d), interSectingVector(0) {}
+    QIconModeViewBase(QListView *q, QListViewPrivate *d) : QCommonListViewBase(q, d), interSectingVector(nullptr) {}
 
     QBspTree tree;
     QVector<QListViewItem> items;
diff --git a/src/widgets/itemviews/qtableview_p.h b/src/widgets/itemviews/qtableview_p.h
index d55462c28b..f629dfcd09 100644
--- a/src/widgets/itemviews/qtableview_p.h
+++ b/src/widgets/itemviews/qtableview_p.h
@@ -137,7 +137,7 @@ public:
         : showGrid(true), gridStyle(Qt::SolidLine),
           rowSectionAnchor(-1), columnSectionAnchor(-1),
           columnResizeTimerID(0), rowResizeTimerID(0),
-          horizontalHeader(0), verticalHeader(0),
+          horizontalHeader(nullptr), verticalHeader(nullptr),
           sortingEnabled(false), geometryRecursionBlock(false),
           visualCursor(QPoint())
  {
diff --git a/src/widgets/itemviews/qtreeview_p.h b/src/widgets/itemviews/qtreeview_p.h
index 9666a9f8c2..836d8f0c2d 100644
--- a/src/widgets/itemviews/qtreeview_p.h
+++ b/src/widgets/itemviews/qtreeview_p.h
@@ -87,7 +87,7 @@ public:
 
     QTreeViewPrivate()
         : QAbstractItemViewPrivate(),
-          header(0), indent(20), lastViewedItem(0), defaultItemHeight(-1),
+          header(nullptr), indent(20), lastViewedItem(0), defaultItemHeight(-1),
           uniformRowHeights(false), rootDecoration(true),
           itemsExpandable(true), sortingEnabled(false),
           expandsOnDoubleClick(true),
@@ -157,7 +157,7 @@ public:
     bool checkViewItems() const;
 #endif
 
-    int firstVisibleItem(int *offset = 0) const;
+    int firstVisibleItem(int *offset = nullptr) const;
     int lastVisibleItem(int firstVisual = -1, int offset = -1) const;
     int columnAt(int x) const;
     bool hasVisibleChildren( const QModelIndex& parent) const;
diff --git a/src/widgets/itemviews/qtreewidget_p.h b/src/widgets/itemviews/qtreewidget_p.h
index ee4a633468..81e7e86203 100644
--- a/src/widgets/itemviews/qtreewidget_p.h
+++ b/src/widgets/itemviews/qtreewidget_p.h
@@ -78,7 +78,7 @@ class QTreeModel : public QAbstractItemModel
     friend class QTreeWidgetItemIteratorPrivate;
 
 public:
-    explicit QTreeModel(int columns = 0, QTreeWidget *parent = 0);
+    explicit QTreeModel(int columns = 0, QTreeWidget *parent = nullptr);
     ~QTreeModel();
 
     inline QTreeWidget *view() const
@@ -140,7 +140,7 @@ public:
     { return createIndex(row, col, item); }
 
 protected:
-    QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = 0);
+    QTreeModel(QTreeModelPrivate &, QTreeWidget *parent = nullptr);
     void emitDataChanged(QTreeWidgetItem *item, int column, const QVector<int> &roles);
     void beginInsertItems(QTreeWidgetItem *parent, int row, int count);
     void endInsertItems();