public XElement Visit(StraightEdgeShapeRecord record, object arg)
{
return(new XElement("LineTo",
new XAttribute("x", record.DeltaX),
new XAttribute("y", record.DeltaY)
));
}
private StraightEdgeShapeRecord ReadStraigtEdgeShapeRecord(ISwfStreamReader reader)
{
var record = new StraightEdgeShapeRecord();
var numBits = reader.ReadUnsignedBits(4) + 2;
var generalLineFlag = reader.ReadBit();
bool vertLineFlag = false;
if (!generalLineFlag)
{
vertLineFlag = reader.ReadBit();
}
if (generalLineFlag || !vertLineFlag)
{
record.DeltaX = reader.ReadSignedBits(numBits);
}
if (generalLineFlag || vertLineFlag)
{
record.DeltaY = reader.ReadSignedBits(numBits);
}
return(record);
}
protected override IShapeRecordEx Adapt(StraightEdgeShapeRecord record)
{
return(record);
}
protected abstract T Adapt(StraightEdgeShapeRecord record);
public IShapeRecord Visit(StraightEdgeShapeRecord record, XElement xShape)
{
record.DeltaX = xShape.RequiredIntAttribute("x");
record.DeltaY = xShape.RequiredIntAttribute("y");
return(record);
}
ShapeRecordWriteContext IShapeRecordVisitor <ShapeRecordWriteContext, ShapeRecordWriteContext> .Visit(StraightEdgeShapeRecord record, ShapeRecordWriteContext ctx)
{
var writer = ctx.Writer;
writer.WriteBit(true);
writer.WriteBit(true);
var actualBits = new SignedBitsCount(record.DeltaX, record.DeltaY).GetBits();
if (actualBits < 2)
{
actualBits = 2;
}
writer.WriteUnsignedBits(actualBits - 2u, 4);
bool genLineFlags = record.DeltaX != 0 && record.DeltaY != 0;
writer.WriteBit(genLineFlags);
bool vertFlag = record.DeltaX == 0;
if (!genLineFlags)
{
writer.WriteBit(vertFlag);
}
if (genLineFlags || !vertFlag)
{
writer.WriteSignedBits(record.DeltaX, actualBits);
}
if (genLineFlags || vertFlag)
{
writer.WriteSignedBits(record.DeltaY, actualBits);
}
return(ctx);
}
public static void AreEqual(StraightEdgeShapeRecord expected, StraightEdgeShapeRecord actual, string message)
{
Assert.AreEqual(expected.DeltaX, actual.DeltaX, "{0}: DeltaX", message);
Assert.AreEqual(expected.DeltaY, actual.DeltaY, "{0}: DeltaY", message);
}
