/// <summary> /// Overrides the default method to write a 4 element array /// </summary> /// <param name="writer"></param> protected override void RenderCustomColorSpace(PDFWriter writer) { writer.BeginDictionaryEntry("ColorSpace"); if (null == this.Pallette || this.Pallette.Length == 0) { throw new NullReferenceException("Palette"); } else { PDFObjectRef index = writer.BeginObject(); writer.BeginArray(); writer.BeginArrayEntry(); writer.WriteName("Indexed"); writer.EndArrayEntry(); writer.BeginArrayEntry(); ColorSpace cs = this.Pallette[0].ColorSpace; if (cs == ColorSpace.RGB) { writer.WriteName("DeviceRGB"); } else if (cs == ColorSpace.G) { writer.WriteName("DeviceG"); } else { throw new ArgumentOutOfRangeException("Palette[0].ColorSpace"); } writer.EndArrayEntry(); writer.BeginArrayEntry(); writer.WriteNumber(this.Pallette.Length - 1);//maximum value not number of entries writer.EndArrayEntry(); //check the stored instance if (null == _bytestreamdata) { _bytestreamdata = GetPaletteString(cs); } writer.BeginArrayEntry(); writer.WriteByteString(_bytestreamdata); writer.EndArrayEntry(); writer.EndArray(); writer.EndObject(); writer.WriteObjectRef(index); } writer.EndDictionaryEntry(); }