void RenderRubyRun::layout()
{
RenderBlock::layout();
RenderRubyText* rt = rubyText();
if (!rt)
return;
rt->setLogicalLeft(0);
// Place the RenderRubyText such that its bottom is flush with the lineTop of the first line of the RenderRubyBase.
LayoutUnit lastLineRubyTextBottom = rt->logicalHeight();
LayoutUnit firstLineRubyTextTop = 0;
RootInlineBox* rootBox = rt->lastRootBox();
if (rootBox) {
// In order to align, we have to ignore negative leading.
firstLineRubyTextTop = rt->firstRootBox()->logicalTopLayoutOverflow();
lastLineRubyTextBottom = rootBox->logicalBottomLayoutOverflow();
}
if (style()->isFlippedLinesWritingMode() == (style()->rubyPosition() == RubyPositionAfter)) {
LayoutUnit firstLineTop = 0;
if (RenderRubyBase* rb = rubyBase()) {
RootInlineBox* rootBox = rb->firstRootBox();
if (rootBox)
firstLineTop = rootBox->logicalTopLayoutOverflow();
firstLineTop += rb->logicalTop();
}
rt->setLogicalTop(-lastLineRubyTextBottom + firstLineTop);
} else {
LayoutUnit lastLineBottom = logicalHeight();
if (RenderRubyBase* rb = rubyBase()) {
RootInlineBox* rootBox = rb->lastRootBox();
if (rootBox)
lastLineBottom = rootBox->logicalBottomLayoutOverflow();
lastLineBottom += rb->logicalTop();
}
rt->setLogicalTop(-firstLineRubyTextTop + lastLineBottom);
}
// Update our overflow to account for the new RenderRubyText position.
computeOverflow(clientLogicalBottom());
}
void RenderRubyRun::layout()
{
RenderBlockFlow::layout();
RenderRubyText* rt = rubyText();
if (!rt)
return;
rt->setLogicalLeft(0);
// Place the RenderRubyText such that its bottom is flush with the lineTop of the first line of the RenderRubyBase.
LayoutUnit lastLineRubyTextBottom = rt->logicalHeight();
LayoutUnit firstLineRubyTextTop = 0;
RootInlineBox* rootBox = rt->lastRootBox();
if (rootBox) {
// In order to align, we have to ignore negative leading.
firstLineRubyTextTop = rt->firstRootBox()->logicalTopLayoutOverflow();
lastLineRubyTextBottom = rootBox->logicalBottomLayoutOverflow();
}
if (isHorizontalWritingMode() && rt->style().rubyPosition() == RubyPositionInterCharacter) {
// Bopomofo. We need to move the RenderRubyText over to the right side and center it
// vertically relative to the base.
const Font& font = style().font();
float distanceBetweenBase = max(font.letterSpacing(), 2.0f * rt->style().font().fontMetrics().height());
setWidth(width() + distanceBetweenBase - font.letterSpacing());
if (RenderRubyBase* rb = rubyBase()) {
LayoutUnit firstLineTop = 0;
LayoutUnit lastLineBottom = logicalHeight();
RootInlineBox* rootBox = rb->firstRootBox();
if (rootBox)
firstLineTop = rootBox->logicalTopLayoutOverflow();
firstLineTop += rb->logicalTop();
if (rootBox)
lastLineBottom = rootBox->logicalBottomLayoutOverflow();
lastLineBottom += rb->logicalTop();
rt->setX(rb->x() + rb->width() - font.letterSpacing());
LayoutUnit extent = lastLineBottom - firstLineTop;
rt->setY(firstLineTop + (extent - rt->height()) / 2);
}
} else if (style().isFlippedLinesWritingMode() == (style().rubyPosition() == RubyPositionAfter)) {
LayoutUnit firstLineTop = 0;
if (RenderRubyBase* rb = rubyBase()) {
RootInlineBox* rootBox = rb->firstRootBox();
if (rootBox)
firstLineTop = rootBox->logicalTopLayoutOverflow();
firstLineTop += rb->logicalTop();
}
rt->setLogicalTop(-lastLineRubyTextBottom + firstLineTop);
} else {
LayoutUnit lastLineBottom = logicalHeight();
if (RenderRubyBase* rb = rubyBase()) {
RootInlineBox* rootBox = rb->lastRootBox();
if (rootBox)
lastLineBottom = rootBox->logicalBottomLayoutOverflow();
lastLineBottom += rb->logicalTop();
}
rt->setLogicalTop(-firstLineRubyTextTop + lastLineBottom);
}
// Update our overflow to account for the new RenderRubyText position.
computeOverflow(clientLogicalBottom());
}