void RenderCounter::computePreferredLogicalWidths(float lead)
{
#ifndef NDEBUG
// FIXME: We shouldn't be modifying the tree in computePreferredLogicalWidths.
// Instead, we should properly hook the appropriate changes in the DOM and modify
// the render tree then. When that's done, we also won't need to override
// computePreferredLogicalWidths at all.
// https://bugs.webkit.org/show_bug.cgi?id=104829
SetLayoutNeededForbiddenScope layoutForbiddenScope(this, false);
#endif
setTextInternal(originalText());
RenderText::computePreferredLogicalWidths(lead);
}
void RenderMathMLRoot::computePreferredLogicalWidths()
{
ASSERT(preferredLogicalWidthsDirty() && needsLayout());
#ifndef NDEBUG
// FIXME: Remove this once mathml stops modifying the render tree here.
SetLayoutNeededForbiddenScope layoutForbiddenScope(this, false);
#endif
computeChildrenPreferredLogicalHeights();
int baseHeight = firstChild() ? roundToInt(preferredLogicalHeightAfterSizing(firstChild())) : style()->fontSize();
int frontWidth = lroundf(gFrontWidthEms * style()->fontSize());
// Base height above which the shape of the root changes
float thresholdHeight = gThresholdBaseHeightEms * style()->fontSize();
if (baseHeight > thresholdHeight && thresholdHeight) {
float shift = min<float>((baseHeight - thresholdHeight) / thresholdHeight, 1.0f);
m_overbarLeftPointShift = static_cast<int>(shift * gRadicalBottomPointXFront * frontWidth);
m_intrinsicPaddingAfter = lroundf(gBigRootBottomPaddingEms * style()->fontSize());
} else {
m_overbarLeftPointShift = 0;
m_intrinsicPaddingAfter = 0;
}
int rootPad = lroundf(gSpaceAboveEms * style()->fontSize());
m_intrinsicPaddingBefore = rootPad;
m_indexTop = 0;
if (RenderBoxModelObject* index = this->index()) {
m_intrinsicPaddingStart = roundToInt(index->maxPreferredLogicalWidth()) + m_overbarLeftPointShift;
int indexHeight = roundToInt(preferredLogicalHeightAfterSizing(index));
int partDipHeight = lroundf((1 - gRootRadicalDipLeftPointYPos) * baseHeight);
int rootExtraTop = partDipHeight + indexHeight - (baseHeight + rootPad);
if (rootExtraTop > 0)
m_intrinsicPaddingBefore += rootExtraTop;
else
m_indexTop = - rootExtraTop;
} else
m_intrinsicPaddingStart = frontWidth;
RenderMathMLBlock::computePreferredLogicalWidths();
// Shrink our logical width to its probable value now without triggering unnecessary relayout of our children.
ASSERT(needsLayout() && logicalWidth() >= maxPreferredLogicalWidth());
setLogicalWidth(maxPreferredLogicalWidth());
}
