QtWidgets: Use Q_NULLPTR instead of 0 in all public headers

This is in preparation of adding -Wzero-as-null-pointer-constant (or similar)
to the headers check.

Task-number: QTBUG-45291
Change-Id: Ie67d235151ca8d4ef5e721c9cf4a6fd32bd167a0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 17 insertions, 17 deletions

diff --git a/src/widgets/styles/qstyle.h b/src/widgets/styles/qstyle.h
index b41762795d..1e9d15c993 100644
--- a/src/widgets/styles/qstyle.h
+++ b/src/widgets/styles/qstyle.h
@@ -192,7 +192,7 @@ public:
     Q_ENUM(PrimitiveElement)
 
     virtual void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
-                               const QWidget *w = 0) const = 0;
+                               const QWidget *w = Q_NULLPTR) const = 0;
     enum ControlElement {
         CE_PushButton,
         CE_PushButtonBevel,
@@ -263,7 +263,7 @@ public:
     Q_ENUM(ControlElement)
 
     virtual void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
-                             const QWidget *w = 0) const = 0;
+                             const QWidget *w = Q_NULLPTR) const = 0;
 
     enum SubElement {
         SE_PushButtonContents,
@@ -347,7 +347,7 @@ public:
     Q_ENUM(SubElement)
 
     virtual QRect subElementRect(SubElement subElement, const QStyleOption *option,
-                                 const QWidget *widget = 0) const = 0;
+                                 const QWidget *widget = Q_NULLPTR) const = 0;
 
 
     enum ComplexControl {
@@ -426,11 +426,11 @@ public:
 
 
     virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
-                                    const QWidget *widget = 0) const = 0;
+                                    const QWidget *widget = Q_NULLPTR) const = 0;
     virtual SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
-                                             const QPoint &pt, const QWidget *widget = 0) const = 0;
+                                             const QPoint &pt, const QWidget *widget = Q_NULLPTR) const = 0;
     virtual QRect subControlRect(ComplexControl cc, const QStyleOptionComplex *opt,
-                                 SubControl sc, const QWidget *widget = 0) const = 0;
+                                 SubControl sc, const QWidget *widget = Q_NULLPTR) const = 0;
 
     enum PixelMetric {
         PM_ButtonMargin,
@@ -561,8 +561,8 @@ public:
     };
     Q_ENUM(PixelMetric)
 
-    virtual int pixelMetric(PixelMetric metric, const QStyleOption *option = 0,
-                            const QWidget *widget = 0) const = 0;
+    virtual int pixelMetric(PixelMetric metric, const QStyleOption *option = Q_NULLPTR,
+                            const QWidget *widget = Q_NULLPTR) const = 0;
 
     enum ContentsType {
         CT_PushButton,
@@ -594,7 +594,7 @@ public:
     Q_ENUM(ContentsType)
 
     virtual QSize sizeFromContents(ContentsType ct, const QStyleOption *opt,
-                                   const QSize &contentsSize, const QWidget *w = 0) const = 0;
+                                   const QSize &contentsSize, const QWidget *w = Q_NULLPTR) const = 0;
 
     enum RequestSoftwareInputPanel {
         RSIP_OnMouseClickAndAlreadyFocused,
@@ -724,8 +724,8 @@ public:
     };
     Q_ENUM(StyleHint)
 
-    virtual int styleHint(StyleHint stylehint, const QStyleOption *opt = 0,
-                          const QWidget *widget = 0, QStyleHintReturn* returnData = 0) const = 0;
+    virtual int styleHint(StyleHint stylehint, const QStyleOption *opt = Q_NULLPTR,
+                          const QWidget *widget = Q_NULLPTR, QStyleHintReturn* returnData = Q_NULLPTR) const = 0;
 
     enum StandardPixmap {
         SP_TitleBarMenuButton,
@@ -804,11 +804,11 @@ public:
     };
     Q_ENUM(StandardPixmap)
 
-    virtual QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt = 0,
-                                   const QWidget *widget = 0) const = 0;
+    virtual QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt = Q_NULLPTR,
+                                   const QWidget *widget = Q_NULLPTR) const = 0;
 
-    virtual QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = 0,
-                               const QWidget *widget = 0) const = 0;
+    virtual QIcon standardIcon(StandardPixmap standardIcon, const QStyleOption *option = Q_NULLPTR,
+                               const QWidget *widget = Q_NULLPTR) const = 0;
 
     virtual QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap,
                                         const QStyleOption *opt) const = 0;
@@ -827,10 +827,10 @@ public:
 
     virtual int layoutSpacing(QSizePolicy::ControlType control1,
                               QSizePolicy::ControlType control2, Qt::Orientation orientation,
-                              const QStyleOption *option = 0, const QWidget *widget = 0) const = 0;
+                              const QStyleOption *option = Q_NULLPTR, const QWidget *widget = Q_NULLPTR) const = 0;
     int combinedLayoutSpacing(QSizePolicy::ControlTypes controls1,
                               QSizePolicy::ControlTypes controls2, Qt::Orientation orientation,
-                              QStyleOption *option = 0, QWidget *widget = 0) const;
+                              QStyleOption *option = Q_NULLPTR, QWidget *widget = Q_NULLPTR) const;
 
     const QStyle * proxy() const;