QtGui: 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: I72ab40b21a9499b53a639564fa45884de17b6c98
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

5 files changed, 15 insertions, 15 deletions

diff --git a/src/gui/painting/qbackingstore.h b/src/gui/painting/qbackingstore.h
index ee3c05f7a9..331fa8c534 100644
--- a/src/gui/painting/qbackingstore.h
+++ b/src/gui/painting/qbackingstore.h
@@ -61,7 +61,7 @@ public:
 
     // 'window' can be a child window, in which case 'region' is in child window coordinates and
     // offset is the (child) window's offset in relation to the window surface.
-    void flush(const QRegion &region, QWindow *window = 0, const QPoint &offset = QPoint());
+    void flush(const QRegion &region, QWindow *window = Q_NULLPTR, const QPoint &offset = QPoint());
 
     void resize(const QSize &size);
     QSize size() const;
diff --git a/src/gui/painting/qcolor.h b/src/gui/painting/qcolor.h
index 9175875310..8af87a49af 100644
--- a/src/gui/painting/qcolor.h
+++ b/src/gui/painting/qcolor.h
@@ -102,10 +102,10 @@ public:
     void setGreenF(qreal green);
     void setBlueF(qreal blue);
 
-    void getRgb(int *r, int *g, int *b, int *a = 0) const;
+    void getRgb(int *r, int *g, int *b, int *a = Q_NULLPTR) const;
     void setRgb(int r, int g, int b, int a = 255);
 
-    void getRgbF(qreal *r, qreal *g, qreal *b, qreal *a = 0) const;
+    void getRgbF(qreal *r, qreal *g, qreal *b, qreal *a = Q_NULLPTR) const;
     void setRgbF(qreal r, qreal g, qreal b, qreal a = 1.0);
 
     QRgb rgba() const;
@@ -129,10 +129,10 @@ public:
     qreal hsvSaturationF() const;
     qreal valueF() const;
 
-    void getHsv(int *h, int *s, int *v, int *a = 0) const;
+    void getHsv(int *h, int *s, int *v, int *a = Q_NULLPTR) const;
     void setHsv(int h, int s, int v, int a = 255);
 
-    void getHsvF(qreal *h, qreal *s, qreal *v, qreal *a = 0) const;
+    void getHsvF(qreal *h, qreal *s, qreal *v, qreal *a = Q_NULLPTR) const;
     void setHsvF(qreal h, qreal s, qreal v, qreal a = 1.0);
 
     int cyan() const;
@@ -145,10 +145,10 @@ public:
     qreal yellowF() const;
     qreal blackF() const;
 
-    void getCmyk(int *c, int *m, int *y, int *k, int *a = 0);
+    void getCmyk(int *c, int *m, int *y, int *k, int *a = Q_NULLPTR);
     void setCmyk(int c, int m, int y, int k, int a = 255);
 
-    void getCmykF(qreal *c, qreal *m, qreal *y, qreal *k, qreal *a = 0);
+    void getCmykF(qreal *c, qreal *m, qreal *y, qreal *k, qreal *a = Q_NULLPTR);
     void setCmykF(qreal c, qreal m, qreal y, qreal k, qreal a = 1.0);
 
     int hslHue() const; // 0 <= hue < 360
@@ -159,10 +159,10 @@ public:
     qreal hslSaturationF() const;
     qreal lightnessF() const;
 
-    void getHsl(int *h, int *s, int *l, int *a = 0) const;
+    void getHsl(int *h, int *s, int *l, int *a = Q_NULLPTR) const;
     void setHsl(int h, int s, int l, int a = 255);
 
-    void getHslF(qreal *h, qreal *s, qreal *l, qreal *a = 0) const;
+    void getHslF(qreal *h, qreal *s, qreal *l, qreal *a = Q_NULLPTR) const;
     void setHslF(qreal h, qreal s, qreal l, qreal a = 1.0);
 
     QColor toRgb() const;
diff --git a/src/gui/painting/qmatrix.h b/src/gui/painting/qmatrix.h
index c036e4df93..809a19a0b8 100644
--- a/src/gui/painting/qmatrix.h
+++ b/src/gui/painting/qmatrix.h
@@ -92,7 +92,7 @@ public:
     bool isInvertible() const { return !qFuzzyIsNull(_m11*_m22 - _m12*_m21); }
     qreal determinant() const { return _m11*_m22 - _m12*_m21; }
 
-    QMatrix inverted(bool *invertible = 0) const Q_REQUIRED_RESULT;
+    QMatrix inverted(bool *invertible = Q_NULLPTR) const Q_REQUIRED_RESULT;
 
     bool operator==(const QMatrix &) const;
     bool operator!=(const QMatrix &) const;
diff --git a/src/gui/painting/qpainter.h b/src/gui/painting/qpainter.h
index 51776a9642..e0c124ea66 100644
--- a/src/gui/painting/qpainter.h
+++ b/src/gui/painting/qpainter.h
@@ -408,9 +408,9 @@ public:
 
     void drawText(const QPointF &p, const QString &str, int tf, int justificationPadding);
 
-    void drawText(const QRectF &r, int flags, const QString &text, QRectF *br=0);
-    void drawText(const QRect &r, int flags, const QString &text, QRect *br=0);
-    inline void drawText(int x, int y, int w, int h, int flags, const QString &text, QRect *br=0);
+    void drawText(const QRectF &r, int flags, const QString &text, QRectF *br = Q_NULLPTR);
+    void drawText(const QRect &r, int flags, const QString &text, QRect *br = Q_NULLPTR);
+    inline void drawText(int x, int y, int w, int h, int flags, const QString &text, QRect *br = Q_NULLPTR);
 
     void drawText(const QRectF &r, const QString &text, const QTextOption &o = QTextOption());
 
@@ -453,7 +453,7 @@ public:
 
     static void setRedirected(const QPaintDevice *device, QPaintDevice *replacement,
                               const QPoint& offset = QPoint());
-    static QPaintDevice *redirected(const QPaintDevice *device, QPoint *offset = 0);
+    static QPaintDevice *redirected(const QPaintDevice *device, QPoint *offset = Q_NULLPTR);
     static void restoreRedirected(const QPaintDevice *device);
 
     void beginNativePainting();
diff --git a/src/gui/painting/qtransform.h b/src/gui/painting/qtransform.h
index 65f543144d..8874996e19 100644
--- a/src/gui/painting/qtransform.h
+++ b/src/gui/painting/qtransform.h
@@ -96,7 +96,7 @@ public:
                    qreal m21, qreal m22, qreal m23,
                    qreal m31, qreal m32, qreal m33);
 
-    QTransform inverted(bool *invertible = 0) const Q_REQUIRED_RESULT;
+    QTransform inverted(bool *invertible = Q_NULLPTR) const Q_REQUIRED_RESULT;
     QTransform adjoint() const Q_REQUIRED_RESULT;
     QTransform transposed() const Q_REQUIRED_RESULT;