void SVGTextLayoutAttributesBuilder::buildLayoutScope(LayoutScope& scope, RenderObject* renderer, unsigned textContentStart, unsigned textContentLength) const
{
ASSERT(renderer);
ASSERT(renderer->style());
scope.textContentStart = textContentStart;
scope.textContentLength = textContentLength;
SVGTextPositioningElement* element = SVGTextPositioningElement::elementFromRenderer(renderer);
if (!element)
return;
SVGTextLayoutAttributes& attributes = scope.attributes;
extractFloatValuesFromSVGLengthList(element, element->x(), attributes.xValues(), textContentLength);
extractFloatValuesFromSVGLengthList(element, element->y(), attributes.yValues(), textContentLength);
extractFloatValuesFromSVGLengthList(element, element->dx(), attributes.dxValues(), textContentLength);
extractFloatValuesFromSVGLengthList(element, element->dy(), attributes.dyValues(), textContentLength);
extractFloatValuesFromSVGNumberList(element->rotate(), attributes.rotateValues(), textContentLength);
// The last rotation value spans the whole scope.
Vector<float>& rotateValues = attributes.rotateValues();
if (rotateValues.isEmpty())
return;
unsigned rotateValuesSize = rotateValues.size();
if (rotateValuesSize == textContentLength)
return;
float lastRotation = rotateValues.last();
rotateValues.resize(textContentLength);
for (unsigned i = rotateValuesSize; i < textContentLength; ++i)
rotateValues.at(i) = lastRotation;
}
void SVGTextLayoutAttributesBuilder::fillAttributesAtPosition(const TextPosition& position)
{
Vector<float> values;
extractFloatValuesFromSVGLengthList(position.element, position.element->x(), values, position.length);
fillListAtPosition(m_positioningLists.xValues, values, position.start);
values.clear();
extractFloatValuesFromSVGLengthList(position.element, position.element->y(), values, position.length);
fillListAtPosition(m_positioningLists.yValues, values, position.start);
values.clear();
extractFloatValuesFromSVGLengthList(position.element, position.element->dx(), values, position.length);
fillListAtPosition(m_positioningLists.dxValues, values, position.start);
values.clear();
extractFloatValuesFromSVGLengthList(position.element, position.element->dy(), values, position.length);
fillListAtPosition(m_positioningLists.dyValues, values, position.start);
values.clear();
extractFloatValuesFromSVGNumberList(position.element->rotate(), values, position.length);
fillListAtPosition(m_positioningLists.rotateValues, values, position.start);
// The last rotation value always spans the whole scope.
if (values.isEmpty())
return;
float lastValue = values.last();
for (unsigned i = values.size(); i < position.length; ++i)
m_positioningLists.rotateValues[position.start + i] = lastValue;
}