From 8c9ad457e985b9fc4f42dcd8a3c7f46a2d4494f1 Mon Sep 17 00:00:00 2001
From: Dekel Tsur <dekelts@tau.ac.il>
Date: Mon, 14 Oct 2002 20:20:34 +0000
Subject: [PATCH] Implement getDPI

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5399 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/frontends/qt2/ChangeLog |  4 ++++
 src/frontends/qt2/lyx_gui.C | 12 ++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/frontends/qt2/ChangeLog b/src/frontends/qt2/ChangeLog
index 44125c9f3c..d75da6cbdc 100644
--- a/src/frontends/qt2/ChangeLog
+++ b/src/frontends/qt2/ChangeLog
@@ -1,3 +1,7 @@
+2002-10-14  Dekel Tsur  <dekelts@tau.ac.il>
+
+	* lyx_gui.C (getDPI): Implemented.
+
 2002-10-12  Dekel Tsur  <dekelts@tau.ac.il>
 
 	* qfont_loader.C (available): Implemented.
diff --git a/src/frontends/qt2/lyx_gui.C b/src/frontends/qt2/lyx_gui.C
index 317a371ca8..0ee6c1dc10 100644
--- a/src/frontends/qt2/lyx_gui.C
+++ b/src/frontends/qt2/lyx_gui.C
@@ -48,6 +48,8 @@
 #include "io_callback.h"
 
 #include <qapplication.h>
+#include <qwidget.h> 
+#include <qpaintdevicemetrics.h> 
 
 #ifndef CXX_GLOBAL_CSTD
 using std::exit;
@@ -60,8 +62,14 @@ using std::endl;
 extern BufferList bufferlist;
 
 namespace {
-	/// good ol' "easy to use" Qt again
-	float getDPI() { return 95; }
+
+float getDPI()
+{ 
+	QWidget w;
+	QPaintDeviceMetrics pdm(&w);
+	return pdm.logicalDpiY();
+}
+
 }
 
 // FIXME: wrong place !