void SVGRootInlineBox::layoutCharactersInTextBoxes(InlineFlowBox* start, SVGTextLayoutEngine& characterLayout)
{
for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
if (child->isSVGInlineTextBox()) {
ASSERT(child->renderer().isSVGInlineText());
characterLayout.layoutInlineTextBox(toSVGInlineTextBox(child));
} else {
// Skip generated content.
Node* node = child->renderer().node();
if (!node)
continue;
SVGInlineFlowBox* flowBox = toSVGInlineFlowBox(child);
bool isTextPath = isSVGTextPathElement(*node);
if (isTextPath) {
// Build text chunks for all <textPath> children, using the line layout algorithm.
// This is needeed as text-anchor is just an additional startOffset for text paths.
SVGTextLayoutEngine lineLayout(characterLayout.layoutAttributes());
layoutCharactersInTextBoxes(flowBox, lineLayout);
characterLayout.beginTextPathLayout(&child->renderer(), lineLayout);
}
layoutCharactersInTextBoxes(flowBox, characterLayout);
if (isTextPath)
characterLayout.endTextPathLayout();
}
}
}
void SVGTextLayoutEngine::layoutCharactersInTextBoxes(InlineFlowBox* start)
{
bool textLengthSpacingInEffect = m_textLengthSpacingInEffect || definesTextLengthWithSpacing(start);
TemporaryChange<bool> textLengthSpacingScope(m_textLengthSpacingInEffect, textLengthSpacingInEffect);
for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
if (child->isSVGInlineTextBox()) {
ASSERT(child->layoutObject().isSVGInlineText());
layoutInlineTextBox(toSVGInlineTextBox(child));
} else {
// Skip generated content.
Node* node = child->layoutObject().node();
if (!node)
continue;
SVGInlineFlowBox* flowBox = toSVGInlineFlowBox(child);
bool isTextPath = isSVGTextPathElement(*node);
if (isTextPath)
beginTextPathLayout(flowBox);
layoutCharactersInTextBoxes(flowBox);
if (isTextPath)
endTextPathLayout();
}
}
}
bool SVGTSpanElement::rendererIsNeeded(const RenderStyle& style)
{
if (parentNode()
&& (isSVGAElement(*parentNode())
#if ENABLE(SVG_FONTS)
|| isSVGAltGlyphElement(*parentNode())
#endif
|| isSVGTextElement(*parentNode())
|| isSVGTextPathElement(*parentNode())
|| isSVGTSpanElement(*parentNode())))
return Element::rendererIsNeeded(style);
return false;
}
