void SVGTextLayoutAttributesBuilder::buildCharacterDataMap(RenderSVGText& textRoot)
{
SVGTextPositioningElement* outermostTextElement = SVGTextPositioningElement::elementFromRenderer(textRoot);
ASSERT(outermostTextElement);
// Grab outermost <text> element value lists and insert them in the character data map.
TextPosition wholeTextPosition(outermostTextElement, 0, m_textLength);
fillCharacterDataMap(wholeTextPosition);
// Handle x/y default attributes.
SVGCharacterDataMap::iterator it = m_characterDataMap.find(1);
if (it == m_characterDataMap.end()) {
SVGCharacterData data;
data.x = 0;
data.y = 0;
m_characterDataMap.set(1, data);
} else {
SVGCharacterData& data = it->value;
if (data.x == SVGTextLayoutAttributes::emptyValue())
data.x = 0;
if (data.y == SVGTextLayoutAttributes::emptyValue())
data.y = 0;
}
// Fill character data map using child text positioning elements in top-down order.
unsigned size = m_textPositions.size();
for (unsigned i = 0; i < size; ++i)
fillCharacterDataMap(m_textPositions[i]);
}
void SVGTextLayoutAttributesBuilder::buildLayoutAttributesForAllCharacters(RenderSVGText* textRoot, unsigned textLength)
{
ASSERT(textLength);
SVGTextPositioningElement* outermostTextElement = SVGTextPositioningElement::elementFromRenderer(textRoot);
ASSERT(outermostTextElement);
// Fill the lists with the special emptyValue marker.
m_positioningLists.fillWithEmptyValues(textLength);
// Grab outermost <text> element value lists and insert them in the m_positioningLists.
TextPosition wholeTextPosition(outermostTextElement, 0, textLength);
fillAttributesAtPosition(wholeTextPosition);
// Handle x/y default attributes.
float& xFirst = m_positioningLists.xValues.first();
if (xFirst == SVGTextLayoutAttributes::emptyValue())
xFirst = 0;
float& yFirst = m_positioningLists.yValues.first();
if (yFirst == SVGTextLayoutAttributes::emptyValue())
yFirst = 0;
// Fill m_positioningLists using child text positioning elements in top-down order.
unsigned size = m_textPositions.size();
for (unsigned i = 0; i < size; ++i)
fillAttributesAtPosition(m_textPositions[i]);
// Now m_positioningLists.contains a x/y/dx/dy/rotate value for each character in the <text> subtree.
}