void RenderSVGResourceMasker::drawMaskForRenderer(GraphicsContext* context, const FloatRect& targetBoundingBox)
{
ASSERT(context);
AffineTransform contentTransformation;
SVGUnitTypes::SVGUnitType contentUnits = toSVGMaskElement(element())->maskContentUnits()->currentValue()->enumValue();
if (contentUnits == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
contentTransformation.translate(targetBoundingBox.x(), targetBoundingBox.y());
contentTransformation.scaleNonUniform(targetBoundingBox.width(), targetBoundingBox.height());
context->concatCTM(contentTransformation);
}
if (!m_maskContentDisplayList)
m_maskContentDisplayList = asDisplayList(context, contentTransformation);
ASSERT(m_maskContentDisplayList);
context->drawDisplayList(m_maskContentDisplayList.get());
}
PassOwnPtr<PatternData> RenderSVGResourcePattern::buildPatternData(const RenderObject& object)
{
// If we couldn't determine the pattern content element root, stop here.
if (!m_attributes.patternContentElement())
return nullptr;
// An empty viewBox disables rendering.
if (m_attributes.hasViewBox() && m_attributes.viewBox().isEmpty())
return nullptr;
ASSERT(element());
// Compute tile metrics.
FloatRect clientBoundingBox = object.objectBoundingBox();
FloatRect tileBounds = SVGLengthContext::resolveRectangle(element(),
m_attributes.patternUnits(), clientBoundingBox,
m_attributes.x(), m_attributes.y(), m_attributes.width(), m_attributes.height());
if (tileBounds.isEmpty())
return nullptr;
AffineTransform tileTransform;
if (m_attributes.hasViewBox()) {
if (m_attributes.viewBox().isEmpty())
return nullptr;
tileTransform = SVGFitToViewBox::viewBoxToViewTransform(m_attributes.viewBox(),
m_attributes.preserveAspectRatio(), tileBounds.width(), tileBounds.height());
} else {
// A viewbox overrides patternContentUnits, per spec.
if (m_attributes.patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
tileTransform.scale(clientBoundingBox.width(), clientBoundingBox.height());
}
OwnPtr<PatternData> patternData = adoptPtr(new PatternData);
patternData->pattern = Pattern::createDisplayListPattern(asDisplayList(tileBounds, tileTransform));
// Compute pattern space transformation.
patternData->transform.translate(tileBounds.x(), tileBounds.y());
AffineTransform patternTransform = m_attributes.patternTransform();
if (!patternTransform.isIdentity())
patternData->transform = patternTransform * patternData->transform;
return patternData.release();
}