Merge remote branch 'qt/4.7' into lighthouse-4.7

Conflicts:
	configure
	src/gui/egl/qegl.cpp
	src/gui/kernel/qdnd_p.h

1 files changed, 29 insertions, 8 deletions

diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 2e2e9e4..985380a 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -1078,6 +1078,9 @@ QPixmap QPixmap::grabWidget(QWidget * widget, const QRect &rect)
     if (widget->testAttribute(Qt::WA_PendingResizeEvent) || !widget->testAttribute(Qt::WA_WState_Created))
         sendResizeEvents(widget);
 
+    widget->d_func()->prepareToRender(QRegion(),
+        QWidget::DrawWindowBackground | QWidget::DrawChildren | QWidget::IgnoreMask);
+
     QRect r(rect);
     if (r.width() < 0)
         r.setWidth(widget->width() - rect.x());
@@ -1088,8 +1091,8 @@ QPixmap QPixmap::grabWidget(QWidget * widget, const QRect &rect)
         return QPixmap();
 
     QPixmap res(r.size());
-    widget->render(&res, QPoint(), r,
-                   QWidget::DrawWindowBackground | QWidget::DrawChildren | QWidget::IgnoreMask);
+    widget->d_func()->render(&res, QPoint(), r, QWidget::DrawWindowBackground
+                             | QWidget::DrawChildren | QWidget::IgnoreMask, true);
     return res;
 }
 
@@ -1370,10 +1373,27 @@ void QPixmap::deref()
 */
 
 /*!
-    \fn bool QPixmap::convertFromImage(const QImage &image, Qt::ImageConversionFlags flags)
+    Replaces this pixmap's data with the given \a image using the
+    specified \a flags to control the conversion.  The \a flags
+    argument is a bitwise-OR of the \l{Qt::ImageConversionFlags}.
+    Passing 0 for \a flags sets all the default options. Returns true
+    if the result is that this pixmap is not null.
 
-    Use the static fromImage() function instead.
+    Note: this function was part of Qt 3 support in Qt 4.6 and earlier.
+    It has been promoted to official API status in 4.7 to support updating
+    the pixmap's image without creating a new QPixmap as fromImage() would.
+
+    \sa fromImage()
+    \since 4.7
 */
+bool QPixmap::convertFromImage(const QImage &image, Qt::ImageConversionFlags flags)
+{
+    if (image.isNull() || !data)
+        *this = QPixmap::fromImage(image, flags);
+    else
+        data->fromImage(image, flags);
+    return !isNull();
+}
 
 /*!
     \fn QPixmap QPixmap::xForm(const QMatrix &matrix) const
@@ -1670,10 +1690,9 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     \o
 
     The hasAlphaChannel() returns true if the pixmap has a format that
-    respects the alpha channel, otherwise returns false, while the
-    hasAlpha() function returns true if the pixmap has an alpha
-    channel \e or a mask (otherwise false). The mask() function returns
-    the mask as a QBitmap object, which can be set using setMask().
+    respects the alpha channel, otherwise returns false. The hasAlpha(),
+    setMask() and mask() functions are legacy and should not be used.
+    They are potentially very slow.
 
     The createHeuristicMask() function creates and returns a 1-bpp
     heuristic mask (i.e. a QBitmap) for this pixmap. It works by
@@ -1760,6 +1779,8 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
     Returns true if this pixmap has an alpha channel, \e or has a
     mask, otherwise returns false.
 
+    \warning This is potentially an expensive operation.
+
     \sa hasAlphaChannel(), mask()
 */
 bool QPixmap::hasAlpha() const