Remove MathML (part 3 of many)

Source/core/rendering/mathml/RenderMathMLFraction.cpp

Index: Source/core/rendering/mathml/RenderMathMLFraction.cpp
diff --git a/Source/core/rendering/mathml/RenderMathMLFraction.cpp b/Source/core/rendering/mathml/RenderMathMLFraction.cpp
deleted file mode 100644
index 7c72ef187e152d48610c05af053b39368de1f58f..0000000000000000000000000000000000000000
--- a/Source/core/rendering/mathml/RenderMathMLFraction.cpp
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
- * Copyright (C) 2010 François Sausset (sausset@gmail.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.
- */
-
-#include "config.h"
-
-#if ENABLE(MATHML)
-
-#include "core/rendering/mathml/RenderMathMLFraction.h"
-
-#include "MathMLNames.h"
-#include "core/platform/graphics/GraphicsContext.h"
-#include "core/rendering/PaintInfo.h"
-
-namespace WebCore {
-    
-using namespace MathMLNames;
-
-static const float gLineThin = 0.33f;
-static const float gLineMedium = 1.f;
-static const float gLineThick = 3.f;
-static const float gFractionBarWidth = 0.05f;
-
-RenderMathMLFraction::RenderMathMLFraction(Element* element)
-    : RenderMathMLBlock(element)
-    , m_lineThickness(gLineMedium)
-{
-}
-
-void RenderMathMLFraction::fixChildStyle(RenderObject* child)
-{
-    ASSERT(child->isAnonymous() && child->style()->refCount() == 1);
-    child->style()->setFlexDirection(FlowColumn);
-}
-
-// FIXME: It's cleaner to only call updateFromElement when an attribute has changed. Move parts
-// of this to fixChildStyle or other methods, and call them when needed.
-void RenderMathMLFraction::updateFromElement()
-{
-    // FIXME: mfrac where bevelled=true will need to reorganize the descendants
-    if (isEmpty()) 
-        return;
-    
-    Element* fraction = toElement(node());
-    
-    RenderObject* numeratorWrapper = firstChild();
-    RenderObject* denominatorWrapper = numeratorWrapper->nextSibling();
-    if (!denominatorWrapper)
-        return;
-    
-    // FIXME: parse units
-    String thickness = fraction->getAttribute(MathMLNames::linethicknessAttr);
-    m_lineThickness = gLineMedium;
-    if (equalIgnoringCase(thickness, "thin"))
-        m_lineThickness = gLineThin;
-    else if (equalIgnoringCase(thickness, "medium"))
-        m_lineThickness = gLineMedium;
-    else if (equalIgnoringCase(thickness, "thick"))
-        m_lineThickness = gLineThick;
-    else if (equalIgnoringCase(thickness, "0"))
-        m_lineThickness = 0;
-
-    // Update the style for the padding of the denominator for the line thickness
-    lastChild()->style()->setPaddingTop(Length(static_cast<int>(m_lineThickness), Fixed));
-}
-
-void RenderMathMLFraction::addChild(RenderObject* child, RenderObject* /* beforeChild */)
-{
-    if (isEmpty()) {
-        RenderMathMLBlock* numeratorWrapper = createAnonymousMathMLBlock();
-        RenderMathMLBlock::addChild(numeratorWrapper);
-        fixChildStyle(numeratorWrapper);
-        
-        RenderMathMLBlock* denominatorWrapper = createAnonymousMathMLBlock();
-        RenderMathMLBlock::addChild(denominatorWrapper);
-        fixChildStyle(denominatorWrapper);
-    }
-    
-    if (firstChild()->isEmpty())
-        firstChild()->addChild(child);
-    else
-        lastChild()->addChild(child);
-    
-    updateFromElement();
-}
-
-void RenderMathMLFraction::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
-{
-    RenderMathMLBlock::styleDidChange(diff, oldStyle);
-    
-    for (RenderObject* child = firstChild(); child; child = child->nextSibling())
-        fixChildStyle(child);
-    updateFromElement();
-}
-
-RenderMathMLOperator* RenderMathMLFraction::unembellishedOperator()
-{
-    RenderObject* numeratorWrapper = firstChild();
-    if (!numeratorWrapper)
-        return 0;
-    RenderObject* numerator = numeratorWrapper->firstChild();
-    if (!numerator || !numerator->isRenderMathMLBlock())
-        return 0;
-    return toRenderMathMLBlock(numerator)->unembellishedOperator();
-}
-
-void RenderMathMLFraction::layout()
-{
-    updateFromElement();
-
-    // Adjust the fraction line thickness for the zoom
-    if (lastChild() && lastChild()->isRenderBlock())
-        m_lineThickness *= ceilf(gFractionBarWidth * style()->fontSize());
-
-    RenderMathMLBlock::layout();
-}
-
-void RenderMathMLFraction::paint(PaintInfo& info, const LayoutPoint& paintOffset)
-{
-    RenderMathMLBlock::paint(info, paintOffset);
-    if (info.context->paintingDisabled() || info.phase != PaintPhaseForeground)
-        return;
-    
-    RenderBox* denominatorWrapper = lastChildBox();
-    if (!denominatorWrapper || !m_lineThickness)
-        return;
-
-    IntPoint adjustedPaintOffset = roundedIntPoint(paintOffset + location() + denominatorWrapper->location() + LayoutPoint(0, m_lineThickness / 2));
-    
-    GraphicsContextStateSaver stateSaver(*info.context);
-    
-    info.context->setStrokeThickness(m_lineThickness);
-    info.context->setStrokeStyle(SolidStroke);
-    info.context->setStrokeColor(style()->visitedDependentColor(CSSPropertyColor), ColorSpaceSRGB);
-    
-    info.context->drawLine(adjustedPaintOffset, IntPoint(adjustedPaintOffset.x() + denominatorWrapper->pixelSnappedOffsetWidth(), adjustedPaintOffset.y()));
-}
-
-int RenderMathMLFraction::firstLineBoxBaseline() const
-{
-    if (RenderBox* denominatorWrapper = lastChildBox())
-        return denominatorWrapper->logicalTop() + static_cast<int>(lroundf((m_lineThickness + style()->fontMetrics().xHeight()) / 2));
-    return RenderMathMLBlock::firstLineBoxBaseline();
-}
-
-}
-
-#endif // ENABLE(MATHML)