public static QrCode EncodeSegments(List <QrSegment> segs, Ecc ecl, int minVersion, int maxVersion, int mask, bool boostEcl)
{
Utils.CheckNull(segs, nameof(segs));
if (!(MIN_VERSION <= minVersion && minVersion <= maxVersion && maxVersion <= MAX_VERSION) || mask < -1 || mask > 7)
{
throw new ArgumentException("Invalid value");
}
int version, dataUsedBits;
for (version = minVersion; ; version++)
{
var capacityBits = GetNumDataCodewords(version, ecl) * 8;
dataUsedBits = QrSegment.GetTotalBits(segs, version);
if (dataUsedBits != -1 && dataUsedBits <= capacityBits)
{
break;
}
if (version >= maxVersion)
{
var msg = "Segment too long";
if (dataUsedBits != -1)
{
msg = string.Format("Data length = {0} bits, Max capacity = {1} bits", dataUsedBits, capacityBits);
}
throw new DataTooLongException(msg);
}
}
foreach (var newEcl in new Ecc[] { Ecc.Low, Ecc.Medium, Ecc.Quartitle, Ecc.High })
{
if (boostEcl && dataUsedBits <= GetNumDataCodewords(version, newEcl) * 8)
{
ecl = newEcl;
}
}
var bb = new BitBuffer();
foreach (var seg in segs)
{
bb.AppendBits(seg.Mode.ModeBits, 4);
bb.AppendBits(seg.NumChars, seg.Mode.NumCharCountBits(version));
bb.AppendData(seg.Data);
}
var dataCapacityBits = GetNumDataCodewords(version, ecl) * 8;
bb.AppendBits(0, Math.Min(4, dataCapacityBits - bb.Length));
bb.AppendBits(0, (8 - bb.Length % 8) % 8);
for (var padByte = 0xEC; bb.Length < dataCapacityBits; padByte ^= 0xEC ^ 0x11)
{
bb.AppendBits(padByte, 8);
}
var dataCodewords = new byte[bb.Length / 8];
for (var i = 0; i < bb.Length; i++)
{
dataCodewords[i >> 3] = (byte)(dataCodewords[i >> 3] | bb.GetBit(i) << (7 - (i & 7)));
}
// Create the QR Code object
return(new QrCode(version, ecl, dataCodewords, mask));
}
