bool addToSVGPathByteStream(SVGPathByteStream& fromStream, const SVGPathByteStream& byStream, unsigned repeatCount)
{
if (fromStream.isEmpty() || byStream.isEmpty())
return true;
OwnPtr<SVGPathByteStream> fromStreamCopy = fromStream.copy();
fromStream.clear();
SVGPathByteStreamBuilder builder(fromStream);
SVGPathByteStreamSource fromSource(*fromStreamCopy);
SVGPathByteStreamSource bySource(byStream);
SVGPathBlender blender(&fromSource, &bySource, &builder);
return blender.addAnimatedPath(repeatCount);
}
bool addToSVGPathByteStream(SVGPathByteStream& streamToAppendTo, const SVGPathByteStream& byStream, unsigned repeatCount)
{
// Why return when streamToAppendTo is empty? Don't we still need to append?
if (streamToAppendTo.isEmpty() || byStream.isEmpty())
return true;
// Is it OK to make the SVGPathByteStreamBuilder from a stream, and then clear that stream?
SVGPathByteStreamBuilder builder(streamToAppendTo);
SVGPathByteStream fromStreamCopy = streamToAppendTo;
streamToAppendTo.clear();
SVGPathByteStreamSource fromSource(fromStreamCopy);
SVGPathByteStreamSource bySource(byStream);
return SVGPathBlender::addAnimatedPath(fromSource, bySource, builder, repeatCount);
}
bool buildStringFromByteStream(const SVGPathByteStream& stream, String& result, PathParsingMode parsingMode)
{
if (stream.isEmpty())
return true;
SVGPathByteStreamSource source(stream);
return SVGPathParser::parseToString(source, result, parsingMode);
}
bool buildSVGPathSegListFromByteStream(const SVGPathByteStream& stream, SVGPathElement& element, SVGPathSegList& result, PathParsingMode parsingMode)
{
if (stream.isEmpty())
return true;
SVGPathSegListBuilder builder(element, result, parsingMode == NormalizedParsing ? PathSegNormalizedRole : PathSegUnalteredRole);
SVGPathByteStreamSource source(stream);
return SVGPathParser::parse(source, builder, parsingMode);
}
bool buildPathFromByteStream(const SVGPathByteStream& stream, Path& result)
{
if (stream.isEmpty())
return true;
SVGPathBuilder builder(result);
SVGPathByteStreamSource source(stream);
return SVGPathParser::parse(source, builder);
}
bool buildPathFromByteStream(const SVGPathByteStream& stream, Path& result)
{
if (stream.isEmpty())
return true;
SVGPathBuilder builder(result);
SVGPathByteStreamSource source(stream);
SVGPathParser parser(&source, &builder);
return parser.parsePathDataFromSource(NormalizedParsing);
}
FloatPoint getPointAtLengthOfSVGPathByteStream(const SVGPathByteStream& stream, float length)
{
if (stream.isEmpty())
return FloatPoint();
SVGPathTraversalStateBuilder builder(PathTraversalState::TraversalPointAtLength, length);
SVGPathByteStreamSource source(stream);
SVGPathParser parser(&source, &builder);
parser.parsePathDataFromSource(NormalizedParsing);
return builder.currentPoint();
}
float getTotalLengthOfSVGPathByteStream(const SVGPathByteStream& stream)
{
if (stream.isEmpty())
return 0;
SVGPathTraversalStateBuilder builder(PathTraversalState::TraversalTotalLength);
SVGPathByteStreamSource source(stream);
SVGPathParser parser(&source, &builder);
parser.parsePathDataFromSource(NormalizedParsing);
return builder.totalLength();
}
unsigned getSVGPathSegAtLengthFromSVGPathByteStream(const SVGPathByteStream& stream, float length)
{
if (stream.isEmpty())
return 0;
SVGPathTraversalStateBuilder builder(PathTraversalState::TraversalSegmentAtLength, length);
SVGPathByteStreamSource source(stream);
SVGPathParser parser(&source, &builder);
parser.parsePathDataFromSource(NormalizedParsing);
return builder.pathSegmentIndex();
}
bool buildStringFromByteStream(const SVGPathByteStream& stream, String& result, PathParsingMode parsingMode)
{
if (stream.isEmpty())
return true;
SVGPathStringBuilder builder;
SVGPathByteStreamSource source(stream);
SVGPathParser parser(&source, &builder);
bool ok = parser.parsePathDataFromSource(parsingMode);
result = builder.result();
return ok;
}
bool getSVGPathSegAtLengthFromSVGPathByteStream(const SVGPathByteStream& stream, float length, unsigned& pathSeg)
{
if (stream.isEmpty())
return false;
PathTraversalState traversalState(PathTraversalState::Action::SegmentAtLength);
SVGPathTraversalStateBuilder builder(traversalState, length);
SVGPathByteStreamSource source(stream);
bool ok = SVGPathParser::parse(source, builder);
pathSeg = builder.pathSegmentIndex();
return ok;
}
bool buildAnimatedSVGPathByteStream(const SVGPathByteStream& fromStream, const SVGPathByteStream& toStream, SVGPathByteStream& result, float progress)
{
ASSERT(&toStream != &result);
result.clear();
if (toStream.isEmpty())
return true;
SVGPathByteStreamBuilder builder(result);
SVGPathByteStreamSource fromSource(fromStream);
SVGPathByteStreamSource toSource(toStream);
return SVGPathBlender::blendAnimatedPath(fromSource, toSource, builder, progress);
}
bool getPointAtLengthOfSVGPathByteStream(const SVGPathByteStream& stream, float length, SVGPoint& point)
{
if (stream.isEmpty())
return false;
PathTraversalState traversalState(PathTraversalState::Action::VectorAtLength);
SVGPathTraversalStateBuilder builder(traversalState, length);
SVGPathByteStreamSource source(stream);
bool ok = SVGPathParser::parse(source, builder);
point = builder.currentPoint();
return ok;
}
bool getTotalLengthOfSVGPathByteStream(const SVGPathByteStream& stream, float& totalLength)
{
if (stream.isEmpty())
return false;
PathTraversalState traversalState(PathTraversalState::Action::TotalLength);
SVGPathTraversalStateBuilder builder(traversalState);
SVGPathByteStreamSource source(stream);
bool ok = SVGPathParser::parse(source, builder);
totalLength = builder.totalLength();
return ok;
}