bool
DOMSVGTransform::IndexIsValid()
{
SVGAnimatedTransformList *alist = Element()->GetAnimatedTransformList();
return (mIsAnimValItem &&
mListIndex < alist->GetAnimValue().Length()) ||
(!mIsAnimValItem &&
mListIndex < alist->GetBaseValue().Length());
}
gfxMatrix
nsSVGPatternFrame::GetPatternTransform()
{
SVGAnimatedTransformList* animTransformList =
GetPatternTransformList(mContent);
if (!animTransformList)
return gfxMatrix();
return animTransformList->GetAnimValue().GetConsolidationMatrix();
}
gfxMatrix
nsSVGGradientFrame::GetGradientTransform(nsIFrame *aSource,
const gfxRect *aOverrideBounds)
{
gfxMatrix bboxMatrix;
PRUint16 gradientUnits = GetGradientUnits();
if (gradientUnits == nsIDOMSVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE) {
// If this gradient is applied to text, our caller
// will be the glyph, which is not a container, so we
// need to get the parent
if (aSource->GetContent()->IsNodeOfType(nsINode::eTEXT))
mSource = aSource->GetParent();
else
mSource = aSource;
} else {
NS_ASSERTION(gradientUnits == nsIDOMSVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX,
"Unknown gradientUnits type");
// objectBoundingBox is the default anyway
gfxRect bbox = aOverrideBounds ? *aOverrideBounds : nsSVGUtils::GetBBox(aSource);
bboxMatrix = gfxMatrix(bbox.Width(), 0, 0, bbox.Height(), bbox.X(), bbox.Y());
}
nsSVGGradientElement *element =
GetGradientWithAttr(nsGkAtoms::gradientTransform, mContent);
SVGAnimatedTransformList* animTransformList =
element->GetAnimatedTransformList();
if (!animTransformList)
return bboxMatrix;
gfxMatrix gradientTransform =
animTransformList->GetAnimValue().GetConsolidationMatrix();
return bboxMatrix.PreMultiply(gradientTransform);
}