1 files changed, 26 insertions, 0 deletions
diff --git a/src/gui/painting/qwindowsurface_rasterblittable.cpp b/src/gui/painting/qwindowsurface_rasterblittable.cpp
new file mode 100644
index 0000000..56a79ba
--- /dev/null
+++ b/src/gui/painting/qwindowsurface_rasterblittable.cpp
@@ -0,0 +1,26 @@
+#include "qwindowsurface_rasterblittable_p.h"
+
+#include <private/qpaintengine_blitter_p.h>
+#include <private/qpixmap_blitter_p.h>
+
+QRasterBlittableWindowSurface::QRasterBlittableWindowSurface(QWidget *widget)
+    : QRasterWindowSurface(widget),
+        m_currentImage(0),
+        m_blittable(0),
+        m_pmData(new QBlittablePixmapData(QPixmapData::PixmapType)),
+        m_pixmap(new QPixmap(m_pmData))
+{
+}
+
+QPaintDevice *QRasterBlittableWindowSurface::paintDevice()
+{
+    QPaintDevice *device = QRasterWindowSurface::paintDevice();
+    if (m_currentImage != device) {
+        if (device->devType() == QInternal::Image) {
+            m_currentImage = static_cast<QImage *>(device);
+            m_blittable = createBlittable(m_currentImage);
+            m_pmData->setBlittable(m_blittable);
+        }
+    }
+    return m_pixmap;
+}