1 files changed, 59 insertions, 0 deletions
diff --git a/Source/WebKit2/WebProcess/WebPage/qt/TiledDrawingAreaQt.cpp b/Source/WebKit2/WebProcess/WebPage/qt/TiledDrawingAreaQt.cpp
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index 0000000..b7ad782
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+++ b/Source/WebKit2/WebProcess/WebPage/qt/TiledDrawingAreaQt.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if ENABLE(TILED_BACKING_STORE)
+
+#include "TiledDrawingArea.h"
+
+#include "UpdateChunk.h"
+#include "WebPage.h"
+#include <WebCore/GraphicsContext.h>
+
+#include <QImage>
+#include <QPainter>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+void TiledDrawingArea::paintIntoUpdateChunk(UpdateChunk* updateChunk, float scale)
+{
+    IntRect tileRect = updateChunk->rect();
+    QImage image(updateChunk->createImage());
+    QPainter painter(&image);
+    // Now paint into the backing store.
+    GraphicsContext graphicsContext(&painter);
+    graphicsContext.translate(-tileRect.x(), -tileRect.y());
+    graphicsContext.scale(FloatSize(scale, scale));
+    IntRect contentRect = enclosingIntRect(FloatRect(tileRect.x() / scale,
+                                                     tileRect.y() / scale,
+                                                     tileRect.width() / scale,
+                                                     tileRect.height() / scale));
+    m_webPage->drawRect(graphicsContext, contentRect);
+}
+
+} // namespace WebKit
+
+#endif // TILED_BACKING_STORE