Add Code One support

backend_qt4/backend_qt4.pro

@@ -94,6 +94,7 @@ SOURCES += ../backend/2of5.c \
            ../backend/upcean.c \
            ../backend/qr.c \
            ../backend/dllversion.c \
+           ../backend/code1.c \
            qzint.cpp
 
 VERSION = 2.1.3

backend_qt4/qzint.cpp

@@ -291,6 +291,7 @@ void QZint::render(QPainter & painter, const QRectF & paintRect, AspectRatioMode
 
 	painter.save();
 	painter.setClipRect(paintRect,Qt::IntersectClip);
+	painter.setRenderHint(QPainter::Antialiasing);
 	qreal xtr=paintRect.x();
 	qreal ytr=paintRect.y();