// Return the mask bit for "getMaskPattern" at "x" and "y". See 8.8 of JISX0510:2004 for mask
// pattern conditions.
public static bool getDataMaskBit(int maskPattern, int x, int y)
{
if (!MicroQRCode.isValidMaskPattern(maskPattern))
{
throw new System.ArgumentException("Invalid mask pattern");
}
int intermediate, temp;
switch (maskPattern)
{
//ISO/IEC 18004:2006(E) 6.8.1 Data mask patterns / Table 10 ¡ª Data mask pattern generation conditions
case 0:
intermediate = y & 0x1;
break;
case 1:
intermediate = ((SupportClass.URShift(y, 1)) + (x / 3)) & 0x1;
break;
case 2:
temp = y * x;
intermediate = (((temp & 0x1) + (temp % 3)) & 0x1);
break;
case 3:
temp = y * x;
intermediate = (((temp % 3) + ((y + x) & 0x1)) & 0x1);
break;
default:
throw new System.ArgumentException("Invalid mask pattern: " + maskPattern);
}
return(intermediate == 0);
}
public void test()
{
var microQrCode = new MicroQRCode();
// First, test simple setters and getters.
// We use numbers of version 7-H.
microQrCode.Mode = Mode.ALPHANUMERIC;
microQrCode.ECLevel = ErrorCorrectionLevel.L;
microQrCode.Version = 15;
Assert.AreEqual(Mode.ALPHANUMERIC, microQrCode.Mode);
Assert.AreEqual(ErrorCorrectionLevel.L, microQrCode.ECLevel);
Assert.AreEqual(15, microQrCode.Version);
}
/// <summary>
///
/// </summary>
/// <param name="contents"></param>
/// <param name="format"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="hints"></param>
/// <returns></returns>
public BitMatrix encode(System.String contents, BarcodeFormat format, int width, int height, IDictionary <EncodeHintType, object> hints)
{
//contents = "12345";
//width = 17;
//height = 17;
//hints = new Dictionary<EncodeHintType, object>();
//hints.Add(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
//I should probably throw an exception here.
if (!hints.ContainsKey(EncodeHintType.MICROQRCODE_VERSION))
{
hints.Add(EncodeHintType.MICROQRCODE_VERSION, 4);
}
if (contents == null || contents.Length == 0)
{
throw new System.ArgumentException("Found empty contents");
}
if (format != BarcodeFormat.MICRO_QR_CODE)
{
throw new System.ArgumentException("Can only encode MICRO_QR_CODE, but got " + format);
}
if (width < 0 || height < 0)
{
throw new System.ArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
//hints.Add(EncodeHintType.CHARACTER_SET, "UTF-8");
var errorCorrectionLevel = ErrorCorrectionLevel.L;
int cVersionNum = -1;
if (hints != null)
{
if (hints.ContainsKey(EncodeHintType.ERROR_CORRECTION))
{
var requestedECLevel = hints[EncodeHintType.ERROR_CORRECTION];
if (requestedECLevel != null)
{
errorCorrectionLevel = requestedECLevel as ErrorCorrectionLevel;
if (errorCorrectionLevel == null)
{
switch (requestedECLevel.ToString().ToUpper())
{
case "L":
errorCorrectionLevel = ErrorCorrectionLevel.L;
break;
case "M":
errorCorrectionLevel = ErrorCorrectionLevel.M;
break;
case "Q":
errorCorrectionLevel = ErrorCorrectionLevel.Q;
break;
default:
errorCorrectionLevel = ErrorCorrectionLevel.L;
break;
}
}
}
}
if (hints.ContainsKey(EncodeHintType.MICROQRCODE_VERSION))
{
int versionNum = (int)hints[EncodeHintType.MICROQRCODE_VERSION];
if (versionNum >= 1 && versionNum <= 4)
{
cVersionNum = versionNum;
}
}
}
MicroQRCode code = new MicroQRCode();
//Step 1 Encode the Data.
Encoder.encode(contents, errorCorrectionLevel, hints, code, cVersionNum);
//Step 2 Render the ByteMatrix using the original code.
ByteMatrix microQrCodeByteMatrix = renderByteMatrix(code, width, height);
//Step 3 Convert the Byte Matrix to a QrCode.ByteMatrix (swapping 1 for 0 and 0 for 1)
ZXing.QrCode.Internal.ByteMatrix qrCodeByteMatrix = new QrCode.Internal.ByteMatrix(width, height);
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
// Get the byte value and perform byye swap (swapping 1 for 0 and 0 for 1)
byte value = (byte)microQrCodeByteMatrix.get_Renamed(x, y);
if (value == 0)
{
qrCodeByteMatrix.set(x, y, 1);
}
else
{
qrCodeByteMatrix.set(x, y, 0);
}
}
}
//Step 4 render the result and return a BitMatrix
BitMatrix bitMatrix2 = renderResult(qrCodeByteMatrix, code, width, height, QUIET_ZONE_SIZE);
return(bitMatrix2);
}
// Note that the input matrix uses 0 == white, 1 == black, while the output matrix uses
// 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
private static ByteMatrix renderByteMatrix(MicroQRCode code, int width, int height)
{
ByteMatrix input = code.Matrix;
int inputWidth = input.Width;
int inputHeight = input.Height;
int qrWidth = inputWidth + (QUIET_ZONE_SIZE << 1);
int qrHeight = inputHeight + (QUIET_ZONE_SIZE << 1);
int outputWidth = System.Math.Max(width, qrWidth);
int outputHeight = System.Math.Max(height, qrHeight);
int multiple = System.Math.Min(outputWidth / qrWidth, outputHeight / qrHeight);
// Padding includes both the quiet zone and the extra white pixels to accommodate the requested
// dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
// If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
// handle all the padding from 100x100 (the actual QR) up to 200x160.
int leftPadding = (outputWidth - (inputWidth * multiple)) / 2;
int topPadding = (outputHeight - (inputHeight * multiple)) / 2;
ByteMatrix output = new ByteMatrix(outputWidth, outputHeight);
sbyte[][] outputArray = output.Array;
// We could be tricky and use the first row in each set of multiple as the temporary storage,
// instead of allocating this separate array.
sbyte[] row = new sbyte[outputWidth];
// 1. Write the white lines at the top
for (int y = 0; y < topPadding; y++)
{
setRowColor(outputArray[y], (sbyte)SupportClass.Identity(255));
}
// 2. Expand the QR image to the multiple
sbyte[][] inputArray = input.Array;
for (int y = 0; y < inputHeight; y++)
{
// a. Write the white pixels at the left of each row
for (int x = 0; x < leftPadding; x++)
{
row[x] = (sbyte)SupportClass.Identity(255);
}
// b. Write the contents of this row of the barcode
int offset = leftPadding;
for (int x = 0; x < inputWidth; x++)
{
// Redivivus.in Java to c# Porting update - Type cased sbyte
// 30/01/2010
// sbyte value_Renamed = (inputArray[y][x] == 1)?0:(sbyte) SupportClass.Identity(255);
sbyte value_Renamed = (sbyte)((inputArray[y][x] == 1) ? 0 : SupportClass.Identity(255));
for (int z = 0; z < multiple; z++)
{
row[offset + z] = value_Renamed;
}
offset += multiple;
}
// c. Write the white pixels at the right of each row
offset = leftPadding + (inputWidth * multiple);
for (int x = offset; x < outputWidth; x++)
{
row[x] = (sbyte)SupportClass.Identity(255);
}
// d. Write the completed row multiple times
offset = topPadding + (y * multiple);
for (int z = 0; z < multiple; z++)
{
Array.Copy(row, 0, outputArray[offset + z], 0, outputWidth);
}
}
// 3. Write the white lines at the bottom
int offset2 = topPadding + (inputHeight * multiple);
for (int y = offset2; y < outputHeight; y++)
{
setRowColor(outputArray[y], (sbyte)SupportClass.Identity(255));
}
return(output);
}
// Note that the input matrix uses 0 == white, 1 == black, while the output matrix uses
// 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
private static BitMatrix renderResult(ZXing.QrCode.Internal.ByteMatrix bitMatrix, MicroQRCode code, int width, int height, int quietZone)
{
ZXing.QrCode.Internal.ByteMatrix input = bitMatrix;
if (input == null)
{
throw new InvalidOperationException();
}
int inputWidth = input.Width;
int inputHeight = input.Height;
int qrWidth = inputWidth + (quietZone << 1);
int qrHeight = inputHeight + (quietZone << 1);
int outputWidth = Math.Max(width, qrWidth);
int outputHeight = Math.Max(height, qrHeight);
int multiple = Math.Min(outputWidth / qrWidth, outputHeight / qrHeight);
// Padding includes both the quiet zone and the extra white pixels to accommodate the requested
// dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
// If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
// handle all the padding from 100x100 (the actual QR) up to 200x160.
int leftPadding = (outputWidth - (inputWidth * multiple)) / 2;
int topPadding = (outputHeight - (inputHeight * multiple)) / 2;
var output = new BitMatrix(outputWidth, outputHeight);
for (int inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple)
{
// Write the contents of this row of the barcode
for (int inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple)
{
if (input[inputX, inputY] == 1)
{
output.setRegion(outputX, outputY, multiple, multiple);
}
}
}
return(output);
}
