Merge remote-tracking branch 'origin/5.6' into 5.7

Conflicts:
	src/widgets/styles/qgtkstyle_p.cpp
	tests/auto/corelib/io/qtextstream/test/test.pro
	tests/auto/corelib/plugin/plugin.pro

Change-Id: I512bc1b36acf3933ed2b96c00f476ee3819c1f4b

5 files changed, 49 insertions, 66 deletions

diff --git a/src/gui/kernel/qshapedpixmapdndwindow.cpp b/src/gui/kernel/qshapedpixmapdndwindow.cpp
index 2cfbc4caa4..40bf15b807 100644
--- a/src/gui/kernel/qshapedpixmapdndwindow.cpp
+++ b/src/gui/kernel/qshapedpixmapdndwindow.cpp
@@ -48,52 +48,31 @@
 QT_BEGIN_NAMESPACE
 
 QShapedPixmapWindow::QShapedPixmapWindow(QScreen *screen)
-    : QWindow(screen),
-      m_backingStore(0),
-      m_useCompositing(true)
+    : m_useCompositing(true)
 {
+    setScreen(screen);
     QSurfaceFormat format;
     format.setAlphaBufferSize(8);
     setFormat(format);
-    setSurfaceType(RasterSurface);
-    setFlags(Qt::ToolTip | Qt::FramelessWindowHint |
-                   Qt::X11BypassWindowManagerHint | Qt::WindowTransparentForInput | Qt::WindowDoesNotAcceptFocus);
-    create();
-    m_backingStore = new QBackingStore(this);
+    setFlags(Qt::ToolTip | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint
+             | Qt::WindowTransparentForInput | Qt::WindowDoesNotAcceptFocus);
 }
 
 QShapedPixmapWindow::~QShapedPixmapWindow()
 {
-    delete m_backingStore;
-    m_backingStore = 0;
-}
-
-void QShapedPixmapWindow::render()
-{
-    QRect rect(QPoint(), geometry().size());
-
-    m_backingStore->beginPaint(rect);
-
-    QPaintDevice *device = m_backingStore->paintDevice();
-
-    {
-        QPainter p(device);
-        if (m_useCompositing)
-            p.setCompositionMode(QPainter::CompositionMode_Source);
-        else
-            p.fillRect(rect, QGuiApplication::palette().base());
-        p.drawPixmap(0, 0, m_pixmap);
-    }
-
-    m_backingStore->endPaint();
-    m_backingStore->flush(rect);
 }
 
 void QShapedPixmapWindow::setPixmap(const QPixmap &pixmap)
 {
     m_pixmap = pixmap;
-    if (!m_useCompositing)
-        setMask(m_pixmap.mask());
+    if (!m_useCompositing) {
+        const QBitmap mask = m_pixmap.mask();
+        if (!mask.isNull()) {
+            if (!handle())
+                create();
+            setMask(mask);
+        }
+    }
 }
 
 void QShapedPixmapWindow::setHotspot(const QPoint &hotspot)
@@ -101,19 +80,28 @@ void QShapedPixmapWindow::setHotspot(const QPoint &hotspot)
     m_hotSpot = hotspot;
 }
 
-void QShapedPixmapWindow::updateGeometry(const QPoint &pos)
+void QShapedPixmapWindow::paintEvent(QPaintEvent *)
 {
-    if (m_pixmap.isNull())
-        m_backingStore->resize(QSize(1,1));
-    else if (m_backingStore->size() != m_pixmap.size())
-        m_backingStore->resize(m_pixmap.size());
-
-    setGeometry(QRect(pos - m_hotSpot, m_backingStore->size()));
+    if (!m_pixmap.isNull()) {
+        const QRect rect(QPoint(0, 0), size());
+        QPainter painter(this);
+        if (m_useCompositing)
+            painter.setCompositionMode(QPainter::CompositionMode_Source);
+        else
+            painter.fillRect(rect, QGuiApplication::palette().base());
+        painter.drawPixmap(rect, m_pixmap);
+    }
 }
 
-void QShapedPixmapWindow::exposeEvent(QExposeEvent *)
+void QShapedPixmapWindow::updateGeometry(const QPoint &pos)
 {
-    render();
+    QSize size(1, 1);
+    if (!m_pixmap.isNull()) {
+        size = qFuzzyCompare(m_pixmap.devicePixelRatio(), 1.0)
+            ? m_pixmap.size()
+            : (QSizeF(m_pixmap.size()) / m_pixmap.devicePixelRatio()).toSize();
+    }
+    setGeometry(QRect(pos - m_hotSpot, size));
 }
 
 QT_END_NAMESPACE
diff --git a/src/gui/kernel/qshapedpixmapdndwindow_p.h b/src/gui/kernel/qshapedpixmapdndwindow_p.h
index 65a4e3cfa7..21cecba9e8 100644
--- a/src/gui/kernel/qshapedpixmapdndwindow_p.h
+++ b/src/gui/kernel/qshapedpixmapdndwindow_p.h
@@ -51,21 +51,18 @@
 // We mean it.
 //
 
-#include <QtGui/QWindow>
+#include <QtGui/QRasterWindow>
 #include <QtGui/QPixmap>
-#include <QtGui/QBackingStore>
 
 QT_BEGIN_NAMESPACE
 
-class QShapedPixmapWindow : public QWindow
+class QShapedPixmapWindow : public QRasterWindow
 {
     Q_OBJECT
 public:
     explicit QShapedPixmapWindow(QScreen *screen = 0);
     ~QShapedPixmapWindow();
 
-    void render();
-
     void setUseCompositing(bool on) { m_useCompositing = on; }
     void setPixmap(const QPixmap &pixmap);
     void setHotspot(const QPoint &hotspot);
@@ -73,10 +70,9 @@ public:
     void updateGeometry(const QPoint &pos);
 
 protected:
-    void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
 
 private:
-    QBackingStore *m_backingStore;
     QPixmap m_pixmap;
     QPoint m_hotSpot;
     bool m_useCompositing;
diff --git a/src/gui/painting/qcosmeticstroker.cpp b/src/gui/painting/qcosmeticstroker.cpp
index ba0d1871d1..4965762d74 100644
--- a/src/gui/painting/qcosmeticstroker.cpp
+++ b/src/gui/painting/qcosmeticstroker.cpp
@@ -68,8 +68,8 @@ static inline uint sourceOver(uint d, uint color)
 inline static int F16Dot16FixedDiv(int x, int y)
 {
     if (qAbs(x) > 0x7fff)
-        return (((qlonglong)x) << 16) / y;
-    return (x << 16) / y;
+        return qlonglong(x) * (1<<16) / y;
+    return x * (1<<16) / y;
 }
 
 typedef void (*DrawPixel)(QCosmeticStroker *stroker, int x, int y, int coverage);
@@ -441,14 +441,14 @@ void QCosmeticStroker::calculateLastPoint(qreal rx1, qreal ry1, qreal rx2, qreal
             qSwap(x1, x2);
         }
         int xinc = F16Dot16FixedDiv(x2 - x1, y2 - y1);
-        int x = x1 << 10;
+        int x = x1 * (1<<10);
 
         int y = (y1 + 32) >> 6;
         int ys = (y2 + 32) >> 6;
 
         int round = (xinc > 0) ? 32 : 0;
         if (y != ys) {
-            x += ( ((((y << 6) + round - y1)))  * xinc ) >> 6;
+            x += ((y * (1<<6)) + round - y1) * xinc >> 6;
 
             if (swapped) {
                 lastPixel.x = x >> 16;
@@ -480,7 +480,7 @@ void QCosmeticStroker::calculateLastPoint(qreal rx1, qreal ry1, qreal rx2, qreal
 
         int round = (yinc > 0) ? 32 : 0;
         if (x != xs) {
-            y += ( ((((x << 6) + round - x1)))  * yinc ) >> 6;
+            y += ((x * (1<<6)) + round - x1) * yinc >> 6;
 
             if (swapped) {
                 lastPixel.x = x;
@@ -759,7 +759,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
             dir = QCosmeticStroker::BottomToTop;
         }
         int xinc = F16Dot16FixedDiv(x2 - x1, y2 - y1);
-        int x = x1 << 10;
+        int x = x1 * (1<<10);
 
         if ((stroker->lastDir ^ QCosmeticStroker::VerticalMask) == dir)
             caps |= swapped ? QCosmeticStroker::CapEnd : QCosmeticStroker::CapBegin;
@@ -771,7 +771,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
         int round = (xinc > 0) ? 32 : 0;
 
         if (y != ys) {
-            x += ( ((((y << 6) + round - y1)))  * xinc ) >> 6;
+            x += ((y * (1<<6)) + round - y1) * xinc >> 6;
 
             // calculate first and last pixel and perform dropout control
             QCosmeticStroker::Point first;
@@ -810,7 +810,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
             stroker->lastDir = dir;
             stroker->lastAxisAligned = axisAligned;
 
-            Dasher dasher(stroker, swapped, y << 6, ys << 6);
+            Dasher dasher(stroker, swapped, y * (1<<6), ys * (1<<6));
 
             do {
                 if (dasher.on())
@@ -836,7 +836,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
             dir = QCosmeticStroker::RightToLeft;
         }
         int yinc = F16Dot16FixedDiv(y2 - y1, x2 - x1);
-        int y = y1 << 10;
+        int y = y1 * (1<<10);
 
         if ((stroker->lastDir ^ QCosmeticStroker::HorizontalMask) == dir)
             caps |= swapped ? QCosmeticStroker::CapEnd : QCosmeticStroker::CapBegin;
@@ -848,7 +848,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
         int round = (yinc > 0) ? 32 : 0;
 
         if (x != xs) {
-            y += ( ((((x << 6) + round - x1)))  * yinc ) >> 6;
+            y += ((x * (1<<6)) + round - x1) * yinc >> 6;
 
             // calculate first and last pixel to perform dropout control
             QCosmeticStroker::Point first;
@@ -886,7 +886,7 @@ static bool drawLine(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx2,
             stroker->lastDir = dir;
             stroker->lastAxisAligned = axisAligned;
 
-            Dasher dasher(stroker, swapped, x << 6, xs << 6);
+            Dasher dasher(stroker, swapped, x * (1<<6), xs * (1<<6));
 
             do {
                 if (dasher.on())
@@ -929,7 +929,7 @@ static bool drawLineAA(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx
             caps = swapCaps(caps);
         }
 
-        int x = (x1 - 32) << 10;
+        int x = (x1 - 32) * (1<<10);
         x -= ( ((y1 & 63) - 32)  * xinc ) >> 6;
 
         capAdjust(caps, y1, y2, x, xinc);
@@ -992,7 +992,7 @@ static bool drawLineAA(QCosmeticStroker *stroker, qreal rx1, qreal ry1, qreal rx
             caps = swapCaps(caps);
         }
 
-        int y = (y1 - 32) << 10;
+        int y = (y1 - 32) * (1<<10);
         y -= ( ((x1 & 63) - 32)  * yinc ) >> 6;
 
         capAdjust(caps, x1, x2, y, yinc);
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index 898b268070..7e18250087 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -137,7 +137,7 @@ extern bool qt_is_gui_used;
 
 Q_GUI_EXPORT int qt_defaultDpiX()
 {
-    if (qApp->testAttribute(Qt::AA_Use96Dpi))
+    if (QCoreApplication::instance()->testAttribute(Qt::AA_Use96Dpi))
         return 96;
 
     if (!qt_is_gui_used)
@@ -152,7 +152,7 @@ Q_GUI_EXPORT int qt_defaultDpiX()
 
 Q_GUI_EXPORT int qt_defaultDpiY()
 {
-    if (qApp->testAttribute(Qt::AA_Use96Dpi))
+    if (QCoreApplication::instance()->testAttribute(Qt::AA_Use96Dpi))
         return 96;
 
     if (!qt_is_gui_used)
diff --git a/src/gui/text/qrawfont.cpp b/src/gui/text/qrawfont.cpp
index ca6093227d..6065e17d9b 100644
--- a/src/gui/text/qrawfont.cpp
+++ b/src/gui/text/qrawfont.cpp
@@ -614,8 +614,7 @@ QByteArray QRawFont::fontTable(const char *tagName) const
     if (!d->isValid())
         return QByteArray();
 
-    const quint32 *tagId = reinterpret_cast<const quint32 *>(tagName);
-    return d->fontEngine->getSfntTable(qToBigEndian(*tagId));
+    return d->fontEngine->getSfntTable(MAKE_TAG(tagName[0], tagName[1], tagName[2], tagName[3]));
 }
 
 /*!