package tv.porst.swfretools.parser.structures;
import static tv.porst.swfretools.parser.SWFParserHelpers.parseUBits;
import java.util.ArrayList;
import java.util.List;
import tv.porst.splib.binaryparser.UBits;
import tv.porst.swfretools.parser.SWFBinaryParser;
import tv.porst.swfretools.parser.SWFParserException;
/**
* Parses Shape structures.
*
* @author sp
*
*/
public final class ShapeParser {
/**
* Parses a ShapeRecord structure.
*
* @param parser The parser that parses the structure.
* @param fieldName The name of the structure in the parent structure.
*
* @return The parsed structure.
*
* @throws SWFParserException Thrown if the structure could not be parsed.
*/
public static Shape parse(final SWFBinaryParser parser, final String fieldName) throws SWFParserException {
final UBits numFillBits = parseUBits(parser, 4, 0x00006, fieldName + "::NumFillBits");
final UBits numLineBits = parseUBits(parser, 4, 0x00006, fieldName + "::NumLineBits");
final List<ShapeRecord> shapeRecords = new ArrayList<ShapeRecord>();
ShapeRecord shapeRecord = null;
UBits currentNumFillBits = numFillBits;
UBits currentNumLineBits = numLineBits;
do {
shapeRecord = ShapeRecordParser.parse(parser, currentNumFillBits, currentNumLineBits, fieldName + "::ShapeRecord");
shapeRecords.add(shapeRecord);
if (shapeRecord instanceof StyleChangeRecord) {
if (((StyleChangeRecord) shapeRecord).getNumFillBits() != null) {
currentNumFillBits = ((StyleChangeRecord) shapeRecord).getNumFillBits();
}
if (((StyleChangeRecord) shapeRecord).getNumLineBits() != null) {
currentNumLineBits = ((StyleChangeRecord) shapeRecord).getNumLineBits();
}
}
} while (!(shapeRecord instanceof EndShapeRecord));
parser.align();
return new Shape(numFillBits, numLineBits, new ShapeRecordList(shapeRecords));
}
}