From 115bb8a70190a430360bd48cd09f2936e7229acc Mon Sep 17 00:00:00 2001
From: cnr-isti-vclab <paolo.cignoni@isti.cnr.it>
Date: Mon, 28 Apr 2014 13:30:27 +0000
Subject: [PATCH] added QTDeviceToLogical for QWidgets

---
 wrap/qt/device_to_logical.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/wrap/qt/device_to_logical.h b/wrap/qt/device_to_logical.h
index 64a532d7..2497e43a 100644
--- a/wrap/qt/device_to_logical.h
+++ b/wrap/qt/device_to_logical.h
@@ -26,6 +26,17 @@ inline ValueType QTLogicalToDevice( QPainter *qp, const ValueType &value)
 #endif
 }
 
+template < class ValueType>
+inline ValueType QTDeviceToLogical( QWidget *qw, const ValueType &value)
+{
+#if QT_VERSION >= 0x050000
+  return value/qw->devicePixelRatio() ;
+#else
+  Q_UNUSED(qw);
+  return value;
+#endif
+}
+
 template < class ValueType>
 inline ValueType QTDeviceToLogical( QPainter *qp, const ValueType &value)
 {