1 files changed, 72 insertions, 0 deletions
diff --git a/tests/manual/xembed/qt-client-raster/rasterwindow.cpp b/tests/manual/xembed/qt-client-raster/rasterwindow.cpp
new file mode 100644
index 0000000000..89d765f707
--- /dev/null
+++ b/tests/manual/xembed/qt-client-raster/rasterwindow.cpp
@@ -0,0 +1,72 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "rasterwindow.h"
+
+RasterWindow::RasterWindow(QWindow *parent)
+    : QWindow(parent)
+    , m_update_pending(false)
+{
+    winId();
+
+    m_backingStore = new QBackingStore(this);
+    create();
+
+    setGeometry(100, 100, 300, 200);
+}
+
+
+bool RasterWindow::event(QEvent *event)
+{
+    if (event->type() == QEvent::UpdateRequest) {
+        m_update_pending = false;
+        renderNow();
+        return true;
+    }
+    return QWindow::event(event);
+}
+
+void RasterWindow::renderLater()
+{
+    if (!m_update_pending) {
+        m_update_pending = true;
+        QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest));
+    }
+}
+
+void RasterWindow::resizeEvent(QResizeEvent *resizeEvent)
+{
+    m_backingStore->resize(resizeEvent->size());
+    if (isExposed())
+        renderNow();
+}
+
+void RasterWindow::exposeEvent(QExposeEvent *)
+{
+    if (isExposed()) {
+        renderNow();
+    }
+}
+
+void RasterWindow::renderNow()
+{
+    if (!isExposed())
+        return;
+
+    QRect rect(0, 0, width(), height());
+    m_backingStore->beginPaint(rect);
+
+    QPaintDevice *device = m_backingStore->paintDevice();
+    QPainter painter(device);
+
+    painter.fillRect(0, 0, width(), height(), Qt::white);
+    render(&painter);
+
+    m_backingStore->endPaint();
+    m_backingStore->flush(rect);
+}
+
+void RasterWindow::render(QPainter *painter)
+{
+    painter->drawText(QRectF(0, 0, width(), height()), Qt::AlignCenter, QStringLiteral("QWindow"));
+}