--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/html/HTMLCanvasElement.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2007 Alp Toker <alp@atoker.com>
+ *
+ * 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 HTMLCanvasElement_h
+#define HTMLCanvasElement_h
+
+#include "HTMLElement.h"
+#include "IntSize.h"
+
+#if PLATFORM(CG)
+// FIXME: CG-specific parts need to move to the platform directory.
+typedef struct CGContext* CGContextRef;
+typedef struct CGImage* CGImageRef;
+#elif PLATFORM(QT)
+class QImage;
+class QPainter;
+#elif PLATFORM(CAIRO)
+typedef struct _cairo_surface cairo_surface_t;
+#endif
+
+namespace WebCore {
+
+class CanvasRenderingContext2D;
+typedef CanvasRenderingContext2D CanvasRenderingContext;
+class FloatRect;
+class GraphicsContext;
+
+class HTMLCanvasElement : public HTMLElement {
+public:
+    HTMLCanvasElement(Document*);
+    virtual ~HTMLCanvasElement();
+
+    virtual HTMLTagStatus endTagRequirement() const;
+    virtual int tagPriority() const;
+
+    int width() const { return m_size.width(); }
+    int height() const { return m_size.height(); }
+    void setWidth(int);
+    void setHeight(int);
+
+    CanvasRenderingContext* getContext(const String&);
+    // FIXME: Web Applications 1.0 describes a toDataURL function.
+
+    virtual void parseMappedAttribute(MappedAttribute*);
+    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
+
+    IntSize size() const { return m_size; }
+    void willDraw(const FloatRect&);
+
+    void paint(GraphicsContext*, const IntRect&);
+
+    GraphicsContext* drawingContext() const;
+
+#if PLATFORM(CG)
+    CGImageRef createPlatformImage() const;
+#elif PLATFORM(QT)
+    QImage createPlatformImage() const;
+#elif PLATFORM(CAIRO)
+    cairo_surface_t* createPlatformImage() const;
+#endif
+
+private:
+    void createDrawingContext() const;
+    void reset();
+
+    bool m_rendererIsCanvas;
+
+    RefPtr<CanvasRenderingContext2D> m_2DContext;
+    IntSize m_size;
+
+    // FIXME: Web Applications 1.0 describes a security feature where we track
+    // if we ever drew any images outside the domain, so we can disable toDataURL.
+
+    mutable bool m_createdDrawingContext;
+#if PLATFORM(CG)
+    mutable void* m_data;
+#elif PLATFORM(QT)
+    mutable QImage* m_data;
+    mutable QPainter* m_painter;
+#elif PLATFORM(CAIRO)
+    mutable void* m_data;
+    mutable cairo_surface_t* m_surface;
+#else
+    mutable void* m_data;
+#endif
+    mutable GraphicsContext* m_drawingContext;
+};
+
+} //namespace
+
+#endif