public static void WriteTextRecordRGBA(this ISwfStreamWriter writer, TextRecordRGBA record, uint glyphBits, uint advanceBits)
{
if (record == null)
{
throw new ArgumentNullException("record");
}
writer.WriteBit(record.Type);
writer.WriteUnsignedBits(record.Reserved, 3);
writer.WriteBit(record.FontID.HasValue);
writer.WriteBit(record.TextColor.HasValue);
writer.WriteBit(record.YOffset.HasValue);
writer.WriteBit(record.XOffset.HasValue);
var isEnd = !record.Type && record.Reserved == 0 && !record.FontID.HasValue && !record.TextColor.HasValue && !record.YOffset.HasValue && !record.XOffset.HasValue;
if (!isEnd)
{
if (record.FontID.HasValue)
{
writer.WriteUInt16(record.FontID.Value);
}
if (record.TextColor.HasValue)
{
var color = record.TextColor.Value;
writer.WriteRGBA(ref color);
}
if (record.XOffset.HasValue)
{
writer.WriteSInt16(record.XOffset.Value);
}
if (record.YOffset.HasValue)
{
writer.WriteSInt16(record.YOffset.Value);
}
if (record.FontID.HasValue)
{
if (!record.TextHeight.HasValue)
{
throw new InvalidOperationException("Font height must be specified when font is specified");
}
writer.WriteUInt16(record.TextHeight.Value);
}
if (record.Glyphs.Count > 255)
{
throw new InvalidOperationException("Text record has too much glyphs specified");
}
writer.WriteByte((byte)record.Glyphs.Count);
foreach (var glyph in record.Glyphs)
{
writer.WriteGlyphEntry(glyph, glyphBits, advanceBits);
}
}
writer.FlushBits();
}
public static IList <TextRecordRGBA> ReadTextRecordsRGBA(this ISwfStreamReader reader, uint glyphBits, uint advanceBits)
{
var res = new List <TextRecordRGBA>();
bool isEnd;
do
{
var record = new TextRecordRGBA();
record.Type = reader.ReadBit();
record.Reserved = (byte)reader.ReadUnsignedBits(3);
var hasFont = reader.ReadBit();
var hasColor = reader.ReadBit();
var hasYOffset = reader.ReadBit();
var hasXOffset = reader.ReadBit();
isEnd = !record.Type && record.Reserved == 0 && !hasFont && !hasColor && !hasYOffset && !hasXOffset;
if (!isEnd)
{
record.FontID = hasFont ? (ushort?)reader.ReadUInt16() : null;
if (hasColor)
{
record.TextColor = reader.ReadRGBA();
}
if (hasXOffset)
{
record.XOffset = reader.ReadSInt16();
}
if (hasYOffset)
{
record.YOffset = reader.ReadSInt16();
}
if (hasFont)
{
record.TextHeight = reader.ReadUInt16();
}
var count = reader.ReadByte();
for (var i = 0; i < count; i++)
{
var entry = reader.ReadGlyphEntry(glyphBits, advanceBits);
record.Glyphs.Add(entry);
}
reader.AlignToByte();
}
res.Add(record);
} while (!isEnd);
return(res);
}
