--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/ImageBuffer.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2007 Apple Inc. All rights reserved.
+ *
+ * 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
+ * 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. 
+ */
+
+#ifndef ImageBuffer_h
+#define ImageBuffer_h
+
+#include "IntSize.h"
+#include <wtf/OwnPtr.h>
+#include <memory>
+
+#if PLATFORM(CG)
+typedef struct CGImage* CGImageRef;
+#endif
+
+#if PLATFORM(QT)
+#include <QPixmap>
+class QPainter;
+#endif
+
+#if PLATFORM(CAIRO)
+struct _cairo_surface;
+#endif
+
+namespace WebCore {
+
+    class GraphicsContext;
+    class RenderObject;
+
+    class ImageBuffer : Noncopyable {
+    public:
+        static std::auto_ptr<ImageBuffer> create(const IntSize&, bool grayScale);
+        ~ImageBuffer();
+
+        IntSize size() const;
+        GraphicsContext* context() const;
+
+        // This offers a way to render parts of a WebKit rendering tree into this ImageBuffer class.
+        // FIXME: This doesn't belong in the platform directory.
+        // Bad layering that this knows about the render tree.
+        // We need to move it into RenderObject or somewhere in the SVG world.
+        static void renderSubtreeToImage(ImageBuffer*, RenderObject*);
+
+#if PLATFORM(CG)
+        CGImageRef cgImage() const;
+#elif PLATFORM(QT)
+        QPixmap* pixmap() const;
+#elif PLATFORM(CAIRO)
+        _cairo_surface* surface() const;
+#endif
+
+    private:
+        void* m_data;
+        IntSize m_size;
+
+        OwnPtr<GraphicsContext> m_context;
+
+#if PLATFORM(CG)
+        ImageBuffer(void* imageData, const IntSize&, std::auto_ptr<GraphicsContext>);
+        mutable CGImageRef m_cgImage;
+#elif PLATFORM(QT)
+        ImageBuffer(const QPixmap &px);
+        mutable QPixmap m_pixmap;
+        mutable QPainter* m_painter;
+#elif PLATFORM(CAIRO)
+        ImageBuffer(_cairo_surface* surface);
+        mutable _cairo_surface *m_surface;
+#endif
+    };
+}
+
+#endif