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/*
* Copyright (C) 2009 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.
*/
#include "config.h"
#if ENABLE(MATHML)
#include "RenderMathMLBlock.h"
#include "FontSelector.h"
#include "GraphicsContext.h"
#include "MathMLNames.h"
#include "RenderInline.h"
#include "RenderText.h"
namespace WebCore {
using namespace MathMLNames;
RenderMathMLBlock::RenderMathMLBlock(Node* container)
: RenderBlock(container)
{
}
bool RenderMathMLBlock::isChildAllowed(RenderObject* child, RenderStyle*) const
{
return child->node() && child->node()->nodeType() == Node::ELEMENT_NODE;
}
PassRefPtr<RenderStyle> RenderMathMLBlock::makeBlockStyle()
{
RefPtr<RenderStyle> newStyle = RenderStyle::create();
newStyle->inheritFrom(style());
newStyle->setDisplay(BLOCK);
return newStyle;
}
int RenderMathMLBlock::nonOperatorHeight() const
{
if (!isRenderMathMLOperator())
return offsetHeight();
return 0;
}
void RenderMathMLBlock::stretchToHeight(int height)
{
for (RenderObject* current = firstChild(); current; current = current->nextSibling())
if (current->isRenderMathMLBlock()) {
RenderMathMLBlock* block = toRenderMathMLBlock(current);
block->stretchToHeight(height);
}
}
#if ENABLE(DEBUG_MATH_LAYOUT)
void RenderMathMLBlock::paint(PaintInfo& info, int tx, int ty)
{
RenderBlock::paint(info, tx, ty);
if (info.context->paintingDisabled() || info.phase != PaintPhaseForeground)
return;
tx += x();
ty += y();
info.context->save();
info.context->setStrokeThickness(1.0f);
info.context->setStrokeStyle(SolidStroke);
info.context->setStrokeColor(Color(0, 0, 255), sRGBColorSpace);
info.context->drawLine(IntPoint(tx, ty), IntPoint(tx + offsetWidth(), ty));
info.context->drawLine(IntPoint(tx + offsetWidth(), ty), IntPoint(tx + offsetWidth(), ty + offsetHeight()));
info.context->drawLine(IntPoint(tx, ty + offsetHeight()), IntPoint(tx + offsetWidth(), ty + offsetHeight()));
info.context->drawLine(IntPoint(tx, ty), IntPoint(tx, ty + offsetHeight()));
int topStart = paddingTop();
info.context->setStrokeColor(Color(0, 255, 0), sRGBColorSpace);
info.context->drawLine(IntPoint(tx, ty + topStart), IntPoint(tx + offsetWidth(), ty + topStart));
int baseline = baselinePosition(true);
info.context->setStrokeColor(Color(255, 0, 0), sRGBColorSpace);
info.context->drawLine(IntPoint(tx, ty + baseline), IntPoint(tx + offsetWidth(), ty + baseline));
info.context->restore();
}
#endif // ENABLE(DEBUG_MATH_LAYOUT)
}
#endif
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