diff -r 000000000000 -r 1918ee327afb src/gui/painting/qpaintdevice_mac.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/painting/qpaintdevice_mac.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qpaintdevice.h"
+#include "qpainter.h"
+#include "qwidget.h"
+#include "qbitmap.h"
+#include "qapplication.h"
+#include "qprinter.h"
+#include <qdebug.h>
+#include <private/qt_mac_p.h>
+#include <private/qprintengine_mac_p.h>
+#include <private/qpixmap_mac_p.h>
+#include <private/qpixmap_raster_p.h>
+
+QT_BEGIN_NAMESPACE
+
+/*****************************************************************************
+  Internal variables and functions
+ *****************************************************************************/
+
+/*! \internal */
+float qt_mac_defaultDpi_x()
+{
+    // Mac OS X currently assumes things to be 72 dpi.
+    // (see http://developer.apple.com/releasenotes/GraphicsImaging/RN-ResolutionIndependentUI/)
+    // This may need to be re-worked as we go further in the resolution-independence stuff.
+    return 72;
+}
+
+/*! \internal */
+float qt_mac_defaultDpi_y()
+{
+    // Mac OS X currently assumes things to be 72 dpi.
+    // (see http://developer.apple.com/releasenotes/GraphicsImaging/RN-ResolutionIndependentUI/)
+    // This may need to be re-worked as we go further in the resolution-independence stuff.
+    return 72;
+}
+
+
+/*! \internal
+
+    Returns the QuickDraw CGrafPtr of the paint device. 0 is returned
+    if it can't be obtained. Do not hold the pointer around for long
+    as it can be relocated.
+
+    \warning This function is only available on Mac OS X.
+*/
+
+Q_GUI_EXPORT GrafPtr qt_mac_qd_context(const QPaintDevice *device)
+{
+    if (device->devType() == QInternal::Pixmap) {
+        return static_cast<GrafPtr>(static_cast<const QPixmap *>(device)->macQDHandle());
+    } else if(device->devType() == QInternal::Widget) {
+        return static_cast<GrafPtr>(static_cast<const QWidget *>(device)->macQDHandle());
+    } else if(device->devType() == QInternal::Printer) {
+        QPaintEngine *engine = static_cast<const QPrinter *>(device)->paintEngine();
+        return static_cast<GrafPtr>(static_cast<const QMacPrintEngine *>(engine)->handle());
+    }
+    return 0;
+}
+
+extern CGColorSpaceRef qt_mac_colorSpaceForDeviceType(const QPaintDevice *pdev);
+
+/*! \internal
+
+    Returns the CoreGraphics CGContextRef of the paint device. 0 is
+    returned if it can't be obtained. It is the caller's responsiblity to
+    CGContextRelease the context when finished using it.
+
+    \warning This function is only available on Mac OS X.
+*/
+
+Q_GUI_EXPORT CGContextRef qt_mac_cg_context(const QPaintDevice *pdev)
+{
+    if (pdev->devType() == QInternal::Pixmap) {
+        const QPixmap *pm = static_cast<const QPixmap*>(pdev);
+        CGColorSpaceRef colorspace = qt_mac_colorSpaceForDeviceType(pdev);
+        uint flags = kCGImageAlphaPremultipliedFirst;
+#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version
+        flags |= kCGBitmapByteOrder32Host;
+#endif
+        CGContextRef ret = 0;
+
+        // It would make sense to put this into a mac #ifdef'ed
+        // virtual function in the QPixmapData at some point
+        if (pm->data->classId() == QPixmapData::MacClass) {
+            const QMacPixmapData *pmData = static_cast<const QMacPixmapData*>(pm->data.data());
+            ret = CGBitmapContextCreate(pmData->pixels, pmData->w, pmData->h,
+                                                     8, pmData->bytesPerRow, colorspace,
+                                                     flags);
+            if(!ret)
+                qWarning("QPaintDevice: Unable to create context for pixmap (%d/%d/%d)",
+                         pmData->w, pmData->h, (pmData->bytesPerRow * pmData->h));
+        } else if (pm->data->classId() == QPixmapData::RasterClass) {
+            QImage *image = pm->data->buffer();
+            ret = CGBitmapContextCreate(image->bits(), image->width(), image->height(),
+                                        8, image->bytesPerLine(), colorspace, flags);
+        }
+
+        CGContextTranslateCTM(ret, 0, pm->height());
+        CGContextScaleCTM(ret, 1, -1);
+        return ret;
+    } else if (pdev->devType() == QInternal::Widget) {
+        CGContextRef ret = static_cast<CGContextRef>(static_cast<const QWidget *>(pdev)->macCGHandle());
+        CGContextRetain(ret);
+        return ret;
+    } else if (pdev->devType() == QInternal::MacQuartz) {
+        return static_cast<const QMacQuartzPaintDevice *>(pdev)->cgContext();
+    }
+    return 0;
+}
+
+QT_END_NAMESPACE