--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/mathml/RenderMathMLBlock.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2010 Alex Milowski (alex@milowski.com). 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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 RenderMathMLBlock_h
+#define RenderMathMLBlock_h
+
+#if ENABLE(MATHML)
+
+#include "RenderBlock.h"
+
+#define ENABLE_DEBUG_MATH_LAYOUT 0
+
+namespace WebCore {
+    
+class RenderMathMLBlock : public RenderBlock {
+public:
+    RenderMathMLBlock(Node* container);
+    virtual bool isChildAllowed(RenderObject*, RenderStyle*) const;
+    
+    virtual bool isRenderMathMLBlock() const { return true; }
+    virtual bool isRenderMathMLOperator() const { return false; }
+    virtual bool isRenderMathMLRow() const { return false; }
+    virtual bool isRenderMathMLMath() const { return false; }
+    virtual bool hasBase() const { return false; }
+    virtual int nonOperatorHeight() const;
+    virtual void stretchToHeight(int height);
+
+#if ENABLE(DEBUG_MATH_LAYOUT)
+    virtual void paint(PaintInfo&, int tx, int ty);
+#endif
+    
+protected:
+    int getBoxModelObjectHeight(RenderObject* object) 
+    {
+        if (object && object->isBoxModelObject()) {
+            RenderBoxModelObject* box = toRenderBoxModelObject(object);
+            return box->offsetHeight();
+        }
+        
+        return 0;
+    }
+    int getBoxModelObjectHeight(const RenderObject* object) 
+    {
+        if (object && object->isBoxModelObject()) {
+            const RenderBoxModelObject* box = toRenderBoxModelObject(object);
+            return box->offsetHeight();
+        }
+        
+        return 0;
+    }
+    int getBoxModelObjectWidth(RenderObject* object) 
+    {
+        if (object && object->isBoxModelObject()) {
+            RenderBoxModelObject* box = toRenderBoxModelObject(object);
+            return box->offsetWidth();
+        }
+        
+        return 0;
+    }
+    int getBoxModelObjectWidth(const RenderObject* object) 
+    {
+        if (object && object->isBoxModelObject()) {
+            const RenderBoxModelObject* box = toRenderBoxModelObject(object);
+            return box->offsetWidth();
+        }
+        
+        return 0;
+    }
+    virtual PassRefPtr<RenderStyle> makeBlockStyle();
+    
+};
+
+inline RenderMathMLBlock* toRenderMathMLBlock(RenderObject* object)
+{ 
+    ASSERT(!object || object->isRenderMathMLBlock());
+    return static_cast<RenderMathMLBlock*>(object);
+}
+
+inline const RenderMathMLBlock* toRenderMathMLBlock(const RenderObject* object)
+{ 
+    ASSERT(!object || object->isRenderMathMLBlock());
+    return static_cast<const RenderMathMLBlock*>(object);
+}
+
+}
+
+
+#endif // ENABLE(MATHML)
+#endif // RenderMathMLBlock_h