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-rw-r--r--src/gui/styles/qstylehelper.cpp31
1 files changed, 28 insertions, 3 deletions
diff --git a/src/gui/styles/qstylehelper.cpp b/src/gui/styles/qstylehelper.cpp
index 20de892..f9010e8 100644
--- a/src/gui/styles/qstylehelper.cpp
+++ b/src/gui/styles/qstylehelper.cpp
@@ -1,7 +1,7 @@
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
@@ -34,7 +34,7 @@
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
@@ -48,6 +48,12 @@
#include <private/qstyle_p.h>
#include <qmath.h>
+#if defined(Q_WS_WIN)
+#include "qt_windows.h"
+#elif defined(Q_WS_MAC)
+#include <private/qt_cocoa_helpers_mac_p.h>
+#endif
+
QT_BEGIN_NAMESPACE
namespace QStyleHelper {
@@ -72,6 +78,26 @@ QString uniqueName(const QString &key, const QStyleOption *option, const QSize &
return tmp;
}
+qreal dpiScaled(qreal value)
+{
+ static qreal scale = -1;
+ if (scale < 0) {
+ scale = 1.0;
+#if defined(Q_WS_WIN)
+ {
+ HDC hdcScreen = GetDC(0);
+ int dpi = GetDeviceCaps(hdcScreen, LOGPIXELSX);
+ ReleaseDC(0, hdcScreen);
+ scale = dpi/96.0;
+ }
+#elif defined(Q_WS_MAC)
+ scale = qt_mac_get_scalefactor();
+#endif
+ }
+ return value * scale;
+}
+
+
#ifndef QT_NO_DIAL
int calcBigLineSize(int radius)
@@ -178,7 +204,6 @@ QPolygonF calcLines(const QStyleOptionSlider *dial)
return poly;
}
-
// This will draw a nice and shiny QDial for us. We don't want
// all the shinyness in QWindowsStyle, hence we place it here