[Interest] Qt::Alignment and MetaObject System
Giuseppe D'Angelo
giuseppe.dangelo at kdab.com
Thu Aug 29 19:09:52 CEST 2013
Il 29/08/2013 17:11, Martin Koller ha scritto:
> However how can I do the same with this Qt::AlignmentFlag enum which is not defined inside a QObject ?
There's a trick in place in qnamespace.h:
http://code.woboq.org/qt5/qtbase/src/corelib/global/qnamespace.h.html#50
So: most(all?) enums under the Qt namespace gets actually extracted by
moc, and placed in a special metaobject, accessible in any QObject
subclass (it's protected): QObject::staticQtMetaObject.
So you can use something like
> int index = staticQtMetaObject.indexOfEnumerator("Alignment");
> QMetaEnum me = staticQtMetaObject.enumerator(index);
> ...
in a QObject subclass to get the meta information about Qt::Alignment.
Hope this helps,
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