17 files changed, 140 insertions, 40 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoacursor.mm b/src/plugins/platforms/cocoa/qcocoacursor.mm
index 9b30351d70..85ac083d3c 100644
--- a/src/plugins/platforms/cocoa/qcocoacursor.mm
+++ b/src/plugins/platforms/cocoa/qcocoacursor.mm
@@ -61,8 +61,9 @@ void QCocoaCursor::changeCursor(QCursor *cursor, QWindow *window)
 {
     Q_UNUSED(window);
 
+    const Qt::CursorShape newShape = cursor ? cursor->shape() : Qt::ArrowCursor;
     // Check for a suitable built-in NSCursor first:
-    switch (cursor->shape()) {
+    switch (newShape) {
     case Qt::ArrowCursor:
         [[NSCursor arrowCursor] set];
         break;
@@ -99,14 +100,14 @@ void QCocoaCursor::changeCursor(QCursor *cursor, QWindow *window)
     default : {
         // No suitable OS cursor exist, use cursors provided
         // by Qt for the rest. Check for a cached cursor:
-        NSCursor *cocoaCursor = m_cursors.value(cursor->shape());
+        NSCursor *cocoaCursor = m_cursors.value(newShape);
         if (cocoaCursor == 0) {
             cocoaCursor = createCursorData(cursor);
             if (cocoaCursor == 0) {
                 [[NSCursor arrowCursor] set];
                 return;
             }
-            m_cursors.insert(cursor->shape(), cocoaCursor);
+            m_cursors.insert(newShape, cocoaCursor);
         }
 
         [cocoaCursor set];
diff --git a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
index a0734530c5..bb907674dc 100644
--- a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
+++ b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm
@@ -149,10 +149,10 @@ void QCocoaEventDispatcherPrivate::maybeStartCFRunLoopTimer()
         CFTimeInterval oneyear = CFTimeInterval(3600. * 24. * 365.);
 
         // Q: when should the CFRunLoopTimer fire for the first time?
-        struct timeval tv;
+        struct timespec tv;
         if (timerInfoList.timerWait(tv)) {
             // A: when we have timers to fire, of course
-            interval = qMax(tv.tv_sec + tv.tv_usec / 1000000., 0.0000001);
+            interval = qMax(tv.tv_sec + tv.tv_nsec / 1000000000., 0.0000001);
         } else {
             // this shouldn't really happen, but in case it does, set the timer to fire a some point in the distant future
             interval = oneyear;
@@ -172,10 +172,10 @@ void QCocoaEventDispatcherPrivate::maybeStartCFRunLoopTimer()
         CFTimeInterval interval;
 
         // Q: when should the timer first next?
-        struct timeval tv;
+        struct timespec tv;
         if (timerInfoList.timerWait(tv)) {
             // A: when we have timers to fire, of course
-            interval = qMax(tv.tv_sec + tv.tv_usec / 1000000., 0.0000001);
+            interval = qMax(tv.tv_sec + tv.tv_nsec / 1000000000., 0.0000001);
         } else {
             // no timers can fire, but we cannot stop the CFRunLoopTimer, set the timer to fire at some
             // point in the distant future (the timer interval is one year)
diff --git a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
index 61646041fb..faea417f0f 100644
--- a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
@@ -216,7 +216,7 @@ static QString strippedText(QString s)
 - (void)closePanel
 {
     *mCurrentSelection = QT_PREPEND_NAMESPACE(QCFString::toQString)([[mSavePanel URL] path]);
-    if ([mSavePanel respondsToSelector:@selector(closePanel:)])
+    if ([mSavePanel respondsToSelector:@selector(close)])
         [mSavePanel close];
     if ([mSavePanel isSheet])
         [NSApp endSheet: mSavePanel];
@@ -230,6 +230,7 @@ static QString strippedText(QString s)
         bool selectable = (mOptions->acceptMode() == QFileDialogOptions::AcceptSave)
             || [self panel:nil shouldShowFilename:filepath];
 
+        [self updateProperties];
         [mOpenPanel setAllowedFileTypes:nil];
         [mOpenPanel setDirectoryURL:selectable ? [NSURL fileURLWithPath:QT_PREPEND_NAMESPACE(QCFString::toNSString)(info.filePath())]
                                                : [NSURL fileURLWithPath:QT_PREPEND_NAMESPACE(QCFString::toNSString)(info.path())]];
@@ -274,6 +275,7 @@ static QString strippedText(QString s)
     bool selectable = (mOptions->acceptMode() == QFileDialogOptions::AcceptSave)
         || [self panel:nil shouldShowFilename:filepath];
 
+    [self updateProperties];
     [mSavePanel setDirectoryURL:selectable ? [NSURL fileURLWithPath:QT_PREPEND_NAMESPACE(QCFString::toNSString)(info.filePath())]
                                            : [NSURL fileURLWithPath:QT_PREPEND_NAMESPACE(QCFString::toNSString)(info.path())]];
     [mSavePanel setNameFieldStringValue:selectable ? QT_PREPEND_NAMESPACE(QCFString::toNSString)(info.fileName()) : nil];
@@ -405,6 +407,9 @@ static QString strippedText(QString s)
     [mSavePanel setCanCreateDirectories:!(mOptions->testOption(QT_PREPEND_NAMESPACE(QFileDialogOptions::ReadOnly)))];
     [mOpenPanel setAllowsMultipleSelection:(fileMode == QT_PREPEND_NAMESPACE(QFileDialogOptions::ExistingFiles))];
     [mOpenPanel setResolvesAliases:!(mOptions->testOption(QT_PREPEND_NAMESPACE(QFileDialogOptions::DontResolveSymlinks)))];
+    [mOpenPanel setTitle:QCFString::toNSString(mOptions->windowTitle())];
+    [mSavePanel setTitle:QCFString::toNSString(mOptions->windowTitle())];
+    [mPopUpButton setHidden:chooseDirsOnly];    // TODO hide the whole sunken pane instead?
 
     QStringList ext = [self acceptableExtensionsForSave];
     const QString defaultSuffix = mOptions->defaultSuffix();
@@ -577,13 +582,16 @@ extern void qt_mac_to_pascal_string(QString s, Str255 str, TextEncoding encoding
 void QCocoaFileDialogHelper::setDirectory(const QString &directory)
 {
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
-    [delegate->mSavePanel setDirectoryURL:[NSURL fileURLWithPath:QCFString::toNSString(directory)]];
+    if (delegate)
+        [delegate->mSavePanel setDirectoryURL:[NSURL fileURLWithPath:QCFString::toNSString(directory)]];
 }
 
 QString QCocoaFileDialogHelper::directory() const
 {
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
-    return QCFString::toQString([delegate->mSavePanel directory]);
+    if (delegate)
+        return QCFString::toQString([delegate->mSavePanel directory]);
+    return QString();
 }
 
 void QCocoaFileDialogHelper::selectFile(const QString &filename)
@@ -600,12 +608,16 @@ void QCocoaFileDialogHelper::selectFile(const QString &filename)
 QStringList QCocoaFileDialogHelper::selectedFiles() const
 {
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
-    return [delegate selectedFiles];
+    if (delegate)
+        return [delegate selectedFiles];
+    return QStringList();
 }
 
 void QCocoaFileDialogHelper::setFilter()
 {
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
+    if (!delegate)
+        return;
     const SharedPointerFileDialogOptions &opts = options();
     [delegate->mSavePanel setTitle:QCFString::toNSString(opts->windowTitle())];
     if (opts->isLabelExplicitlySet(QFileDialogOptions::Accept))
@@ -618,9 +630,13 @@ void QCocoaFileDialogHelper::setFilter()
 
 void QCocoaFileDialogHelper::selectNameFilter(const QString &filter)
 {
+    if (!options())
+        return;
     const int index = options()->nameFilters().indexOf(filter);
     if (index != -1) {
         QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
+        if (!delegate)
+            return;
         [delegate->mPopUpButton selectItemAtIndex:index];
         [delegate filterChanged:nil];
     }
@@ -629,7 +645,11 @@ void QCocoaFileDialogHelper::selectNameFilter(const QString &filter)
 QString QCocoaFileDialogHelper::selectedNameFilter() const
 {
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
+    if (!delegate)
+        return QString();
     int index = [delegate->mPopUpButton indexOfSelectedItem];
+    if (index >= options()->nameFilters().count())
+        return QString();
     return index != -1 ? options()->nameFilters().at(index) : QString();
 }
 
@@ -675,6 +695,8 @@ bool QCocoaFileDialogHelper::showCocoaFilePanel(Qt::WindowModality windowModalit
 {
     createNSOpenSavePanelDelegate();
     QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *delegate = static_cast<QT_MANGLE_NAMESPACE(QNSOpenSavePanelDelegate) *>(mDelegate);
+    if (!delegate)
+        return false;
     if (windowModality == Qt::NonModal)
         [delegate showModelessPanel];
     else if (windowModality == Qt::WindowModal && parent)
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.h b/src/plugins/platforms/cocoa/qcocoahelpers.h
index 831ab579f5..c801d9d926 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.h
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.h
@@ -84,8 +84,6 @@ HIMutableShapeRef qt_mac_QRegionToHIMutableShape(const QRegion &region);
 
 OSStatus qt_mac_drawCGImage(CGContextRef inContext, const CGRect *inBounds, CGImageRef inImage);
 
-CGFloat qt_mac_get_scalefactor();
-
 QChar qt_mac_qtKey2CocoaKey(Qt::Key key);
 Qt::Key qt_mac_cocoaKey2QtKey(QChar keyCode);
 
diff --git a/src/plugins/platforms/cocoa/qcocoahelpers.mm b/src/plugins/platforms/cocoa/qcocoahelpers.mm
index 91a6f5a4c7..dc43666bb6 100644
--- a/src/plugins/platforms/cocoa/qcocoahelpers.mm
+++ b/src/plugins/platforms/cocoa/qcocoahelpers.mm
@@ -616,11 +616,6 @@ InvalidContext:
         return err;
 }
 
-CGFloat qt_mac_get_scalefactor()
-{
-    return [[NSScreen mainScreen] userSpaceScaleFactor];
-}
-
 Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum)
 {
     if (buttonNum == 0)
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.h b/src/plugins/platforms/cocoa/qcocoamenu.h
index 09b62a9bcd..439b7f1a75 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.h
+++ b/src/plugins/platforms/cocoa/qcocoamenu.h
@@ -51,8 +51,6 @@
 @class NSMenu;
 @class NSObject;
 
-QT_BEGIN_HEADER
-
 QT_BEGIN_NAMESPACE
 
 class QCocoaMenu : public QPlatformMenu
@@ -71,11 +69,17 @@ public:
     void syncMenuItem(QPlatformMenuItem *menuItem);
     void setEnabled(bool enabled);
     void setVisible(bool visible);
+    void showPopup(const QWindow *parentWindow, QPoint pos, const QPlatformMenuItem *item);
+
     void syncSeparatorsCollapsible(bool enable);
 
     void syncModalState(bool modal);
 
-    virtual void setText(const QString &text);
+    virtual void setIcon(const QIcon &icon) { Q_UNUSED(icon) }
+
+    void setText(const QString &text);
+    void setMinimumWidth(int width);
+    void setFont(const QFont &font);
 
     void setParentItem(QCocoaMenuItem* item);
 
@@ -102,6 +106,4 @@ private:
 
 QT_END_NAMESPACE
 
-QT_END_HEADER
-
 #endif
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.mm b/src/plugins/platforms/cocoa/qcocoamenu.mm
index 676f0683fa..a92f4e875c 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenu.mm
@@ -47,6 +47,8 @@
 #include <QtCore/QtDebug>
 #include "qcocoaapplication.h"
 #include "qcocoamenuloader.h"
+#include "qcocoawindow.h"
+#import "qnsview.h"
 
 static inline QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *getMenuLoader()
 {
@@ -133,6 +135,20 @@ void QCocoaMenu::setText(const QString &text)
     [m_nativeItem setTitle:QCFString::toNSString(stripped)];
 }
 
+void QCocoaMenu::setMinimumWidth(int width)
+{
+    m_nativeMenu.minimumWidth = width;
+}
+
+void QCocoaMenu::setFont(const QFont &font)
+{
+    if (font.resolve()) {
+        NSFont *customMenuFont = [NSFont fontWithName:QCFString::toNSString(font.family())
+                                  size:font.pointSize()];
+        m_nativeMenu.font = customMenuFont;
+    }
+}
+
 void QCocoaMenu::insertMenuItem(QPlatformMenuItem *menuItem, QPlatformMenuItem *before)
 {
     QCocoaAutoReleasePool pool;
@@ -290,6 +306,20 @@ void QCocoaMenu::setVisible(bool visible)
     [m_nativeItem setSubmenu:(visible ? m_nativeMenu : nil)];
 }
 
+void QCocoaMenu::showPopup(const QWindow *parentWindow, QPoint pos, const QPlatformMenuItem *item)
+{
+    QCocoaWindow *cocoaWindow = parentWindow ? static_cast<QCocoaWindow *>(parentWindow->handle()) : 0;
+    NSView *view = cocoaWindow ? cocoaWindow->contentView() : nil;
+    NSMenuItem *nsItem = item ? ((QCocoaMenuItem *)item)->nsItem() : nil;
+    NSPoint nsPos = NSMakePoint(pos.x(), pos.y());
+    [m_nativeMenu popUpMenuPositioningItem:nsItem atLocation:nsPos inView:view];
+
+    // The call above blocks, and also swallows any mouse release event,
+    // so we need to clear any mouse button that triggered the menu popup.
+    if ([view isKindOfClass:[QNSView class]])
+        [(QNSView *)view resetMouseButtons];
+}
+
 QPlatformMenuItem *QCocoaMenu::menuItemAt(int position) const
 {
     return m_menuItems.at(position);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.h b/src/plugins/platforms/cocoa/qcocoamenuitem.h
index fe5193a50c..0e6d17343d 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.h
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.h
@@ -51,8 +51,6 @@
 @class NSMenuItem;
 @class NSMenu;
 
-QT_BEGIN_HEADER
-
 QT_BEGIN_NAMESPACE
 
 class QCocoaMenu;
@@ -76,6 +74,7 @@ public:
     void setFont(const QFont &font);
     void setRole(MenuRole role);
     void setShortcut(const QKeySequence& shortcut);
+    void setCheckable(bool checkable) { Q_UNUSED(checkable) }
     void setChecked(bool isChecked);
     void setEnabled(bool isEnabled);
 
@@ -110,8 +109,6 @@ private:
     quintptr m_tag;
 };
 
-QT_END_HEADER
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/plugins/platforms/cocoa/qcocoaprintersupport.h b/src/plugins/platforms/cocoa/qcocoaprintersupport.h
index 040b687c4e..83cf1ffada 100644
--- a/src/plugins/platforms/cocoa/qcocoaprintersupport.h
+++ b/src/plugins/platforms/cocoa/qcocoaprintersupport.h
@@ -55,6 +55,7 @@ public:
     QPrintEngine *createNativePrintEngine(QPrinter::PrinterMode printerMode) Q_DECL_OVERRIDE;
     QPaintEngine *createPaintEngine(QPrintEngine *, QPrinter::PrinterMode printerMode) Q_DECL_OVERRIDE;
     QList<QPrinter::PaperSize> supportedPaperSizes(const QPrinterInfo &) const Q_DECL_OVERRIDE;
+    QList<QPair<QString, QSizeF> > supportedSizesWithNames(const QPrinterInfo &) const Q_DECL_OVERRIDE;
 
     QList<QPrinterInfo> availablePrinters() Q_DECL_OVERRIDE;
     QPrinterInfo printerInfo(const QString &printerName) Q_DECL_OVERRIDE;
diff --git a/src/plugins/platforms/cocoa/qcocoaprintersupport.mm b/src/plugins/platforms/cocoa/qcocoaprintersupport.mm
index a48db02949..cfa23b7a30 100644
--- a/src/plugins/platforms/cocoa/qcocoaprintersupport.mm
+++ b/src/plugins/platforms/cocoa/qcocoaprintersupport.mm
@@ -138,3 +138,34 @@ QPrinterInfo QCocoaPrinterSupport::printerInfoFromPMPrinter(const PMPrinter &pri
 
     return createPrinterInfo(name, description, location, makeAndModel, isDefault, 0);
 }
+
+QList<QPair<QString, QSizeF> > QCocoaPrinterSupport::supportedSizesWithNames(const QPrinterInfo &printerInfo) const
+{
+    QList<QPair<QString, QSizeF> > returnValue;
+    if (printerInfo.isNull())
+        return returnValue;
+
+    PMPrinter printer = PMPrinterCreateFromPrinterID(QCFString::toCFStringRef(printerInfo.printerName()));
+    if (!printer)
+        return returnValue;
+
+    CFArrayRef array;
+    if (PMPrinterGetPaperList(printer, &array) != noErr) {
+        PMRelease(printer);
+        return returnValue;
+    }
+
+    int count = CFArrayGetCount(array);
+    for (int i = 0; i < count; ++i) {
+        PMPaper paper = static_cast<PMPaper>(const_cast<void *>(CFArrayGetValueAtIndex(array, i)));
+        double width, height;
+        if (PMPaperGetWidth(paper, &width) == noErr && PMPaperGetHeight(paper, &height) == noErr) {
+            static const double OnePointInMillimeters = 1.0 / 72.0 * 25.4;
+            QCFString paperName;
+            if (PMPaperCreateLocalizedName(paper, printer, &paperName) == noErr)
+                returnValue.append(qMakePair(QString(paperName), QSizeF(width * OnePointInMillimeters, height * OnePointInMillimeters)));
+        }
+    }
+    PMRelease(printer);
+    return returnValue;
+}
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.h b/src/plugins/platforms/cocoa/qcocoawindow.h
index 324a43c8ae..291c688915 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.h
+++ b/src/plugins/platforms/cocoa/qcocoawindow.h
@@ -115,6 +115,8 @@ public:
     bool setMouseGrabEnabled(bool grab);
     QMargins frameMargins() const;
 
+    void requestActivateWindow();
+
     WId winId() const;
     void setParent(const QPlatformWindow *window);
 
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index 45100f9906..56ca2e0b14 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -658,6 +658,13 @@ void QCocoaWindow::recreateWindow(const QPlatformWindow *parentWindow)
         setOpacity(opacity);
 }
 
+void QCocoaWindow::requestActivateWindow()
+{
+    NSWindow *window = [m_contentView window];
+    [ window makeFirstResponder : m_contentView ];
+    [ window makeKeyWindow ];
+}
+
 NSWindow * QCocoaWindow::createNSWindow()
 {
     QCocoaAutoReleasePool pool;
diff --git a/src/plugins/platforms/cocoa/qmacdefines_mac.h b/src/plugins/platforms/cocoa/qmacdefines_mac.h
index 18c1ac84de..c03b398836 100644
--- a/src/plugins/platforms/cocoa/qmacdefines_mac.h
+++ b/src/plugins/platforms/cocoa/qmacdefines_mac.h
@@ -79,15 +79,11 @@
  */
 
 /* This is just many defines. Therefore it doesn't need things like:
-QT_BEGIN_HEADER
-
 QT_BEGIN_NAMESPACE
 
 
 QT_END_NAMESPACE
 
-QT_END_HEADER
-
 Yes, it is an informative comment ;-)
 */
 
diff --git a/src/plugins/platforms/cocoa/qnsview.h b/src/plugins/platforms/cocoa/qnsview.h
index b4b3379a82..eec0cfe5f6 100644
--- a/src/plugins/platforms/cocoa/qnsview.h
+++ b/src/plugins/platforms/cocoa/qnsview.h
@@ -82,6 +82,9 @@ QT_END_NAMESPACE
 
 - (BOOL)isFlipped;
 - (BOOL)acceptsFirstResponder;
+- (BOOL)becomeFirstResponder;
+
+- (void)resetMouseButtons;
 
 - (void)handleMouseEvent:(NSEvent *)theEvent;
 - (void)mouseDown:(NSEvent *)theEvent;
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index da3e6277c6..c23d924993 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -331,8 +331,25 @@ static QTouchDevice *touchDevice = 0;
     return YES;
 }
 
+- (BOOL)becomeFirstResponder
+{
+    QWindow *focusWindow = m_window;
+
+    // For widgets we need to do a bit of trickery as the window
+    // to activate is the window of the top-level widget.
+    if (m_window->metaObject()->className() == QStringLiteral("QWidgetWindow")) {
+        while (focusWindow->parent()) {
+            focusWindow = focusWindow->parent();
+        }
+    }
+    QWindowSystemInterface::handleWindowActivated(focusWindow);
+    return YES;
+}
+
 - (BOOL)acceptsFirstResponder
 {
+    if ((m_window->flags() & Qt::ToolTip) == Qt::ToolTip)
+        return NO;
     return YES;
 }
 
@@ -381,6 +398,11 @@ static QTouchDevice *touchDevice = 0;
     }
 }
 
+- (void)resetMouseButtons
+{
+    m_buttons = Qt::NoButton;
+}
+
 - (void)handleMouseEvent:(NSEvent *)theEvent
 {
     QPoint qtWindowPoint, qtScreenPoint;
diff --git a/src/plugins/platforms/cocoa/qpaintengine_mac.mm b/src/plugins/platforms/cocoa/qpaintengine_mac.mm
index 0b6392fb65..3163ae947b 100644
--- a/src/plugins/platforms/cocoa/qpaintengine_mac.mm
+++ b/src/plugins/platforms/cocoa/qpaintengine_mac.mm
@@ -1376,13 +1376,8 @@ QCoreGraphicsPaintEngine::updateRenderHints(QPainter::RenderHints hints)
 {
     Q_D(QCoreGraphicsPaintEngine);
     CGContextSetShouldAntialias(d->hd, hints & QPainter::Antialiasing);
-    static const CGFloat ScaleFactor = qt_mac_get_scalefactor();
-    if (ScaleFactor > 1.) {
-        CGContextSetInterpolationQuality(d->hd, kCGInterpolationHigh);
-    } else {
-        CGContextSetInterpolationQuality(d->hd, (hints & QPainter::SmoothPixmapTransform) ?
-                                         kCGInterpolationHigh : kCGInterpolationNone);
-    }
+    CGContextSetInterpolationQuality(d->hd, (hints & QPainter::SmoothPixmapTransform) ?
+                                     kCGInterpolationHigh : kCGInterpolationNone);
     bool textAntialiasing = (hints & QPainter::TextAntialiasing) == QPainter::TextAntialiasing;
     if (!textAntialiasing || d->disabledSmoothFonts) {
         d->disabledSmoothFonts = !textAntialiasing;
diff --git a/src/plugins/platforms/cocoa/qpaintengine_mac_p.h b/src/plugins/platforms/cocoa/qpaintengine_mac_p.h
index 2763a14690..fa000b9f92 100644
--- a/src/plugins/platforms/cocoa/qpaintengine_mac_p.h
+++ b/src/plugins/platforms/cocoa/qpaintengine_mac_p.h
@@ -122,8 +122,6 @@ public:
     void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode)
     { QPaintEngine::drawPolygon(points, pointCount, mode); }
 
-    bool supportsTransformations(qreal, const QTransform &) const { return true; };
-
 protected:
     friend class QMacPrintEngine;
     friend class QMacPrintEnginePrivate;