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>

8 files changed, 31 insertions, 31 deletions

diff --git a/src/gui/image/qbitmap.h b/src/gui/image/qbitmap.h
index f3ad90be20..be693af1cf 100644
--- a/src/gui/image/qbitmap.h
+++ b/src/gui/image/qbitmap.h
@@ -48,7 +48,7 @@ public:
     QBitmap(const QPixmap &);
     QBitmap(int w, int h);
     explicit QBitmap(const QSize &);
-    explicit QBitmap(const QString &fileName, const char *format=0);
+    explicit QBitmap(const QString &fileName, const char *format = Q_NULLPTR);
     ~QBitmap();
 
     QBitmap &operator=(const QPixmap &);
diff --git a/src/gui/image/qiconengineplugin.h b/src/gui/image/qiconengineplugin.h
index 66684c871d..b05969f283 100644
--- a/src/gui/image/qiconengineplugin.h
+++ b/src/gui/image/qiconengineplugin.h
@@ -48,7 +48,7 @@ class Q_GUI_EXPORT QIconEnginePlugin : public QObject
 {
     Q_OBJECT
 public:
-    QIconEnginePlugin(QObject *parent = 0);
+    QIconEnginePlugin(QObject *parent = Q_NULLPTR);
     ~QIconEnginePlugin();
 
     virtual QIconEngine *create(const QString &filename = QString()) = 0;
diff --git a/src/gui/image/qimage.h b/src/gui/image/qimage.h
index 26707021ea..888c7beb32 100644
--- a/src/gui/image/qimage.h
+++ b/src/gui/image/qimage.h
@@ -125,15 +125,15 @@ public:
     QImage() Q_DECL_NOEXCEPT;
     QImage(const QSize &size, Format format);
     QImage(int width, int height, Format format);
-    QImage(uchar *data, int width, int height, Format format, QImageCleanupFunction cleanupFunction = 0, void *cleanupInfo = 0);
-    QImage(const uchar *data, int width, int height, Format format, QImageCleanupFunction cleanupFunction = 0, void *cleanupInfo = 0);
-    QImage(uchar *data, int width, int height, int bytesPerLine, Format format, QImageCleanupFunction cleanupFunction = 0, void *cleanupInfo = 0);
-    QImage(const uchar *data, int width, int height, int bytesPerLine, Format format, QImageCleanupFunction cleanupFunction = 0, void *cleanupInfo = 0);
+    QImage(uchar *data, int width, int height, Format format, QImageCleanupFunction cleanupFunction = Q_NULLPTR, void *cleanupInfo = Q_NULLPTR);
+    QImage(const uchar *data, int width, int height, Format format, QImageCleanupFunction cleanupFunction = Q_NULLPTR, void *cleanupInfo = Q_NULLPTR);
+    QImage(uchar *data, int width, int height, int bytesPerLine, Format format, QImageCleanupFunction cleanupFunction = Q_NULLPTR, void *cleanupInfo = Q_NULLPTR);
+    QImage(const uchar *data, int width, int height, int bytesPerLine, Format format, QImageCleanupFunction cleanupFunction = Q_NULLPTR, void *cleanupInfo = Q_NULLPTR);
 
 #ifndef QT_NO_IMAGEFORMAT_XPM
     explicit QImage(const char * const xpm[]);
 #endif
-    explicit QImage(const QString &fileName, const char *format = 0);
+    explicit QImage(const QString &fileName, const char *format = Q_NULLPTR);
 
     QImage(const QImage &);
 #ifdef Q_COMPILER_RVALUE_REFS
@@ -279,16 +279,16 @@ public:
 
 
     bool load(QIODevice *device, const char* format);
-    bool load(const QString &fileName, const char* format=0);
-    bool loadFromData(const uchar *buf, int len, const char *format = 0);
-    inline bool loadFromData(const QByteArray &data, const char* aformat=0)
+    bool load(const QString &fileName, const char *format = Q_NULLPTR);
+    bool loadFromData(const uchar *buf, int len, const char *format = Q_NULLPTR);
+    inline bool loadFromData(const QByteArray &data, const char *aformat = Q_NULLPTR)
         { return loadFromData(reinterpret_cast<const uchar *>(data.constData()), data.size(), aformat); }
 
-    bool save(const QString &fileName, const char* format=0, int quality=-1) const;
-    bool save(QIODevice *device, const char* format=0, int quality=-1) const;
+    bool save(const QString &fileName, const char *format = Q_NULLPTR, int quality = -1) const;
+    bool save(QIODevice *device, const char *format = Q_NULLPTR, int quality = -1) const;
 
-    static QImage fromData(const uchar *data, int size, const char *format = 0);
-    inline static QImage fromData(const QByteArray &data, const char *format = 0)
+    static QImage fromData(const uchar *data, int size, const char *format = Q_NULLPTR);
+    inline static QImage fromData(const QByteArray &data, const char *format = Q_NULLPTR)
         { return fromData(reinterpret_cast<const uchar *>(data.constData()), data.size(), format); }
 
 #if QT_DEPRECATED_SINCE(5, 0)
diff --git a/src/gui/image/qimageiohandler.h b/src/gui/image/qimageiohandler.h
index 80cd87c4c3..47a8a2b7c6 100644
--- a/src/gui/image/qimageiohandler.h
+++ b/src/gui/image/qimageiohandler.h
@@ -133,7 +133,7 @@ class Q_GUI_EXPORT QImageIOPlugin : public QObject
 {
     Q_OBJECT
 public:
-    explicit QImageIOPlugin(QObject *parent = 0);
+    explicit QImageIOPlugin(QObject *parent = Q_NULLPTR);
     virtual ~QImageIOPlugin();
 
     enum Capability {
diff --git a/src/gui/image/qmovie.h b/src/gui/image/qmovie.h
index 13bc381f8e..a750e4a9fc 100644
--- a/src/gui/image/qmovie.h
+++ b/src/gui/image/qmovie.h
@@ -73,9 +73,9 @@ public:
     };
     Q_ENUM(CacheMode)
 
-    explicit QMovie(QObject *parent = 0);
-    explicit QMovie(QIODevice *device, const QByteArray &format = QByteArray(), QObject *parent = 0);
-    explicit QMovie(const QString &fileName, const QByteArray &format = QByteArray(), QObject *parent = 0);
+    explicit QMovie(QObject *parent = Q_NULLPTR);
+    explicit QMovie(QIODevice *device, const QByteArray &format = QByteArray(), QObject *parent = Q_NULLPTR);
+    explicit QMovie(const QString &fileName, const QByteArray &format = QByteArray(), QObject *parent = Q_NULLPTR);
     ~QMovie();
 
     static QList<QByteArray> supportedFormats();
diff --git a/src/gui/image/qpicture.h b/src/gui/image/qpicture.h
index c3897a1935..a71d1deb02 100644
--- a/src/gui/image/qpicture.h
+++ b/src/gui/image/qpicture.h
@@ -62,10 +62,10 @@ public:
 
     bool play(QPainter *p);
 
-    bool load(QIODevice *dev, const char *format = 0);
-    bool load(const QString &fileName, const char *format = 0);
-    bool save(QIODevice *dev, const char *format = 0);
-    bool save(const QString &fileName, const char *format = 0);
+    bool load(QIODevice *dev, const char *format = Q_NULLPTR);
+    bool load(const QString &fileName, const char *format = Q_NULLPTR);
+    bool save(QIODevice *dev, const char *format = Q_NULLPTR);
+    bool save(const QString &fileName, const char *format = Q_NULLPTR);
 
     QRect boundingRect() const;
     void setBoundingRect(const QRect &r);
diff --git a/src/gui/image/qpictureformatplugin.h b/src/gui/image/qpictureformatplugin.h
index 773c0180d3..9ad938fa79 100644
--- a/src/gui/image/qpictureformatplugin.h
+++ b/src/gui/image/qpictureformatplugin.h
@@ -53,7 +53,7 @@ class Q_GUI_EXPORT QPictureFormatPlugin : public QObject
 {
     Q_OBJECT
 public:
-    explicit QPictureFormatPlugin(QObject *parent = 0);
+    explicit QPictureFormatPlugin(QObject *parent = Q_NULLPTR);
     ~QPictureFormatPlugin();
 
     virtual bool loadPicture(const QString &format, const QString &filename, QPicture *pic);
diff --git a/src/gui/image/qpixmap.h b/src/gui/image/qpixmap.h
index 51b02acfcf..48db7a3840 100644
--- a/src/gui/image/qpixmap.h
+++ b/src/gui/image/qpixmap.h
@@ -58,7 +58,7 @@ public:
     explicit QPixmap(QPlatformPixmap *data);
     QPixmap(int w, int h);
     explicit QPixmap(const QSize &);
-    QPixmap(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
+    QPixmap(const QString& fileName, const char *format = Q_NULLPTR, Qt::ImageConversionFlags flags = Qt::AutoColor);
 #ifndef QT_NO_IMAGEFORMAT_XPM
     explicit QPixmap(const char * const xpm[]);
 #endif
@@ -131,19 +131,19 @@ public:
     }
 #endif
 
-    bool load(const QString& fileName, const char *format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
-    bool loadFromData(const uchar *buf, uint len, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
-    inline bool loadFromData(const QByteArray &data, const char* format = 0, Qt::ImageConversionFlags flags = Qt::AutoColor);
-    bool save(const QString& fileName, const char* format = 0, int quality = -1) const;
-    bool save(QIODevice* device, const char* format = 0, int quality = -1) const;
+    bool load(const QString& fileName, const char *format = Q_NULLPTR, Qt::ImageConversionFlags flags = Qt::AutoColor);
+    bool loadFromData(const uchar *buf, uint len, const char* format = Q_NULLPTR, Qt::ImageConversionFlags flags = Qt::AutoColor);
+    inline bool loadFromData(const QByteArray &data, const char* format = Q_NULLPTR, Qt::ImageConversionFlags flags = Qt::AutoColor);
+    bool save(const QString& fileName, const char* format = Q_NULLPTR, int quality = -1) const;
+    bool save(QIODevice* device, const char* format = Q_NULLPTR, int quality = -1) const;
 
     bool convertFromImage(const QImage &img, Qt::ImageConversionFlags flags = Qt::AutoColor);
 
     inline QPixmap copy(int x, int y, int width, int height) const;
     QPixmap copy(const QRect &rect = QRect()) const;
 
-    inline void scroll(int dx, int dy, int x, int y, int width, int height, QRegion *exposed = 0);
-    void scroll(int dx, int dy, const QRect &rect, QRegion *exposed = 0);
+    inline void scroll(int dx, int dy, int x, int y, int width, int height, QRegion *exposed = Q_NULLPTR);
+    void scroll(int dx, int dy, const QRect &rect, QRegion *exposed = Q_NULLPTR);
 
 #if QT_DEPRECATED_SINCE(5, 0)
     QT_DEPRECATED inline int serialNumber() const { return cacheKey() >> 32; }