--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/style/StyleImage.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
+ *           (C) 2000 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef StyleImage_h
+#define StyleImage_h
+
+#include "IntSize.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+class CSSValue;
+class Image;
+class RenderObject;
+
+typedef void* WrappedImagePtr;
+
+class StyleImage : public RefCounted<StyleImage> {
+public:
+    virtual ~StyleImage() { }
+
+    bool operator==(const StyleImage& other)
+    {
+        return data() == other.data();
+    }
+    
+    virtual PassRefPtr<CSSValue> cssValue() = 0;
+
+    virtual bool canRender(float /*multiplier*/) const { return true; }
+    virtual bool isLoaded() const { return true; }
+    virtual bool errorOccurred() const { return false; }
+    virtual IntSize imageSize(const RenderObject*, float multiplier) const = 0;
+    virtual bool imageHasRelativeWidth() const = 0;
+    virtual bool imageHasRelativeHeight() const = 0;
+    virtual bool usesImageContainerSize() const = 0;
+    virtual void setImageContainerSize(const IntSize&) = 0;
+    virtual void addClient(RenderObject*) = 0;
+    virtual void removeClient(RenderObject*) = 0;
+    virtual Image* image(RenderObject*, const IntSize&) const = 0;
+    virtual WrappedImagePtr data() const = 0;
+    virtual bool isCachedImage() const { return false; }
+    virtual bool isGeneratedImage() const { return false; }
+    
+    static  bool imagesEquivalent(StyleImage* image1, StyleImage* image2)
+    {
+        if (image1 != image2) {
+            if (!image1 || !image2)
+                return false;
+            return *image1 == *image2;
+        }
+        return true;
+    }
+
+protected:
+    StyleImage() { }
+};
+
+}
+#endif