Use brace-initializer instead of nullptr in returning 0-QFlags

Differential Revision: https://phabricator.kde.org/D9182

src/imageformats/eps.cpp

@@ -337,10 +337,10 @@ QImageIOPlugin::Capabilities EPSPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead | CanWrite);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/exr.cpp

@@ -218,10 +218,10 @@ QImageIOPlugin::Capabilities EXRPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/kra.cpp

@@ -66,10 +66,10 @@ QImageIOPlugin::Capabilities KraPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/ora.cpp

@@ -65,10 +65,10 @@ QImageIOPlugin::Capabilities OraPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/pcx.cpp

@@ -667,10 +667,10 @@ QImageIOPlugin::Capabilities PCXPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead | CanWrite);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/pic.cpp

@@ -449,10 +449,10 @@ QImageIOPlugin::Capabilities SoftimagePICPlugin::capabilities(QIODevice *device,
         return Capabilities(CanRead | CanWrite);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/psd.cpp

@@ -300,10 +300,10 @@ QImageIOPlugin::Capabilities PSDPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/ras.cpp

@@ -282,10 +282,10 @@ QImageIOPlugin::Capabilities RASPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/rgb.cpp

@@ -714,10 +714,10 @@ QImageIOPlugin::Capabilities RGBPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead | CanWrite);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/tga.cpp

@@ -423,10 +423,10 @@ QImageIOPlugin::Capabilities TGAPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead | CanWrite);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;

src/imageformats/xcf.cpp

@@ -2690,10 +2690,10 @@ QImageIOPlugin::Capabilities XCFPlugin::capabilities(QIODevice *device, const QB
         return Capabilities(CanRead);
     }
     if (!format.isEmpty()) {
-        return nullptr;
+        return {};
     }
     if (!device->isOpen()) {
-        return nullptr;
+        return {};
     }
 
     Capabilities cap;