Add a qDebug operator overload to handle registered enum

So if you stream enum type into qDebug, it will show the name
of the enum value instead of the int

Change-Id: Iec5e826623353560319890d3e7c4ab97d0645f4a
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index be6441933f..0a8369acbf 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -4105,6 +4105,20 @@ QDebug operator<<(QDebug dbg, const QObject *o)
     dbg << ')';
     return dbg;
 }
+
+QDebug qt_QMetaEnum_debugOperator(QDebug &dbg, int value, const QMetaObject *meta, const char *name)
+{
+    QDebugStateSaver saver(dbg);
+    QMetaEnum me = meta->enumerator(meta->indexOfEnumerator(name));
+    const char *key = me.valueToKey(value);
+    dbg.nospace() << meta->className() << "::" << name << '(';
+    if (key)
+        dbg << key;
+    else
+        dbg << value;
+    dbg << ')';
+    return dbg;
+}
 #endif
 
 /*!