private void Write(ISwfStreamWriter writer, IShapeRecord record, bool allowBigArray, ref uint fillBitsCount, ref uint lineBitsCount)
{
var ctx = new ShapeRecordWriteContext {
FillStyleBits = fillBitsCount,
LineStyleBits = lineBitsCount,
AllowBigArray = allowBigArray,
Writer = writer
};
ctx = record.AcceptVisitor(this, ctx);
fillBitsCount = ctx.FillStyleBits;
lineBitsCount = ctx.LineStyleBits;
}
ShapeRecordWriteContext IShapeRecordVisitor <ShapeRecordWriteContext, ShapeRecordWriteContext> .Visit(StyleChangeShapeRecordRGB record, ShapeRecordWriteContext ctx)
{
var writer = ctx.Writer;
WriteStyleChangeShapeRecord(writer, record, ref ctx.FillStyleBits, ref ctx.LineStyleBits);
if (record.StateNewStyles)
{
writer.WriteFillStylesRGB(record.FillStyles, ctx.AllowBigArray);
writer.WriteLineStylesRGB(record.LineStyles, ctx.AllowBigArray);
ctx.FillStyleBits = new UnsignedBitsCount((uint)record.FillStyles.Count).GetBits();
ctx.LineStyleBits = new UnsignedBitsCount((uint)record.LineStyles.Count).GetBits();
if (ctx.FillStyleBits < 1)
{
ctx.FillStyleBits = 1; //TODO: adobe?
}
writer.WriteUnsignedBits(ctx.FillStyleBits, 4);
writer.WriteUnsignedBits(ctx.LineStyleBits, 4);
}
return(ctx);
}
ShapeRecordWriteContext IShapeRecordVisitor <ShapeRecordWriteContext, ShapeRecordWriteContext> .Visit(EndShapeRecord record, ShapeRecordWriteContext ctx)
{
var writer = ctx.Writer;
writer.WriteUnsignedBits(0, 6);
return(ctx);
}
ShapeRecordWriteContext IShapeRecordVisitor <ShapeRecordWriteContext, ShapeRecordWriteContext> .Visit(CurvedEdgeShapeRecord record, ShapeRecordWriteContext ctx)
{
var writer = ctx.Writer;
writer.WriteBit(true);
writer.WriteBit(false);
var actualBits = new SignedBitsCount(record.ControlDeltaX, record.ControlDeltaY, record.AnchorDeltaX, record.AnchorDeltaY).GetBits();
if (actualBits < 2)
{
actualBits = 2;
}
writer.WriteUnsignedBits(actualBits - 2u, 4);
writer.WriteSignedBits(record.ControlDeltaX, actualBits);
writer.WriteSignedBits(record.ControlDeltaY, actualBits);
writer.WriteSignedBits(record.AnchorDeltaX, actualBits);
writer.WriteSignedBits(record.AnchorDeltaY, actualBits);
return(ctx);
}
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);
}
