/* public byte[] decode(QRCodeImage qrCodeImage) throws DecodingFailedException{
* canvas.println("Decoding started.");
* int[][] intImage = imageToIntArray(qrCodeImage);
* try {
* QRCodeImageReader reader = new QRCodeImageReader();
* qrCodeSymbol = reader.getQRCodeSymbol(intImage);
* } catch (SymbolNotFoundException e) {
* throw new DecodingFailedException(e.getMessage());
* }
* canvas.println("Created QRCode symbol.");
* canvas.println("Reading symbol.");
* canvas.println("Version: " + qrCodeSymbol.getVersionReference());
* canvas.println("Mask pattern: " + qrCodeSymbol.getMaskPatternRefererAsString());
* int[] blocks = qrCodeSymbol.getBlocks();
* canvas.println("Correcting data errors.");
* int[] dataBlocks = correctDataBlocks(blocks);
* try {
* byte[] decodedByteArray =
* getDecodedByteArray(dataBlocks, qrCodeSymbol.getVersion());
* canvas.println("Decoding finished.");
* return decodedByteArray;
* } catch (InvalidDataBlockException e) {
* throw new DecodingFailedException(e.getMessage());
* }
* }*/
public virtual sbyte[] decodeBytes(QRCodeImage qrCodeImage)
{
Point[] adjusts = AdjustPoints;
System.Collections.ArrayList results = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
while (numTryDecode < adjusts.Length)
{
try
{
DecodeResult result = decode(qrCodeImage, adjusts[numTryDecode]);
if (result.CorrectionSucceeded)
{
return(result.DecodedBytes);
}
else
{
results.Add(result);
canvas.println("Decoding succeeded but could not correct");
canvas.println("all errors. Retrying..");
}
}
catch (DecodingFailedException dfe)
{
if (dfe.Message.IndexOf("Finder Pattern") >= 0)
{
throw dfe;
}
}
finally
{
numTryDecode += 1;
}
}
if (results.Count == 0)
{
throw new DecodingFailedException("Give up decoding");
}
int lowestErrorIndex = -1;
int lowestError = System.Int32.MaxValue;
for (int i = 0; i < results.Count; i++)
{
DecodeResult result = (DecodeResult)results[i];
if (result.NumErrors < lowestError)
{
lowestError = result.NumErrors;
lowestErrorIndex = i;
}
}
canvas.println("All trials need for correct error");
canvas.println("Reporting #" + (lowestErrorIndex) + " that,");
canvas.println("corrected minimum errors (" + lowestError + ")");
canvas.println("Decoding finished.");
return(((DecodeResult)results[lowestErrorIndex]).DecodedBytes);
}
internal virtual int[][] imageToIntArray(QRCodeImage image)
{
int width = image.Width;
int height = image.Height;
int[][] intImage = new int[width][];
for (int i = 0; i < width; i++)
{
intImage[i] = new int[height];
}
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
intImage[x][y] = image.getPixel(x, y);
}
}
return(intImage);
}
internal virtual DecodeResult decode(QRCodeImage qrCodeImage, Point adjust)
{
try
{
if (numTryDecode == 0)
{
canvas.println("Decoding started");
int[][] intImage = imageToIntArray(qrCodeImage);
imageReader = new QRCodeImageReader();
qrCodeSymbol = imageReader.getQRCodeSymbol(intImage);
}
else
{
canvas.println("--");
canvas.println("Decoding restarted #" + (numTryDecode));
qrCodeSymbol = imageReader.getQRCodeSymbolWithAdjustedGrid(adjust);
}
}
catch (SymbolNotFoundException e)
{
throw new DecodingFailedException(e.Message);
}
canvas.println("Created QRCode symbol.");
canvas.println("Reading symbol.");
canvas.println("Version: " + qrCodeSymbol.VersionReference);
canvas.println("Mask pattern: " + qrCodeSymbol.MaskPatternRefererAsString);
// blocks contains all (data and RS) blocks in QR Code symbol
int[] blocks = qrCodeSymbol.Blocks;
canvas.println("Correcting data errors.");
// now blocks turn to data blocks (corrected and extracted from original blocks)
blocks = correctDataBlocks(blocks);
try
{
sbyte[] decodedByteArray = getDecodedByteArray(blocks, qrCodeSymbol.Version, qrCodeSymbol.NumErrorCollectionCode);
return(new DecodeResult(this, decodedByteArray, numLastCorrections, correctionSucceeded));
}
catch (InvalidDataBlockException e)
{
canvas.println(e.Message);
throw new DecodingFailedException(e.Message);
}
}
public virtual String decode(QRCodeImage qrCodeImage)
{
sbyte[] data = decodeBytes(qrCodeImage);
byte[] byteData = new byte[data.Length];
Buffer.BlockCopy(data, 0, byteData, 0, byteData.Length);
Encoding encoding;
if (QRCodeUtility.IsUnicode(byteData))
{
encoding = Encoding.Unicode;
}
else
{
encoding = Encoding.ASCII;
}
String decodedData;
decodedData = encoding.GetString(byteData);
return(decodedData);
}
public virtual String decode(QRCodeImage qrCodeImage, Encoding encoding)
{
sbyte[] data = decodeBytes(qrCodeImage);
byte[] byteData = new byte[data.Length];
Buffer.BlockCopy(data, 0, byteData, 0, byteData.Length);
/*
* char[] decodedData = new char[data.Length];
* for (int i = 0; i < data.Length; i++)
* {
* decodedData[i] = Convert.to(data[i]);
*
* }
* return new String(decodedData);
*/
String decodedData;
decodedData = encoding.GetString(byteData);
return(decodedData);
}
internal virtual int[][] imageToIntArray(QRCodeImage image)
{
int width = image.Width;
int height = image.Height;
int[][] intImage = new int[width][];
for (int i = 0; i < width; i++)
{
intImage[i] = new int[height];
}
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
intImage[x][y] = image.GetPixel(x, y);
}
}
return intImage;
}
internal virtual DecodeResult Decode(QRCodeImage qrCodeImage, Point adjust)
{
try
{
if (numTryDecode == 0)
{
canvas.Print("Decoding started");
int[][] intImage = imageToIntArray(qrCodeImage);
imageReader = new QRCodeImageReader();
qrCodeSymbol = imageReader.GetQRCodeSymbol(intImage);
}
else
{
canvas.Print("--");
canvas.Print("Decoding restarted #" + (numTryDecode));
qrCodeSymbol = imageReader.GetQRCodeSymbolWithAdjustedGrid(adjust);
}
}
catch (SymbolNotFoundException e)
{
throw new DecodingFailedException(e.Message);
}
canvas.Print("Created QRCode symbol.");
canvas.Print("Reading symbol.");
canvas.Print("Version: " + qrCodeSymbol.VersionReference);
canvas.Print("Mask pattern: " + qrCodeSymbol.MaskPatternRefererAsString);
// blocks contains all (data and RS) blocks in QR Code symbol
int[] blocks = qrCodeSymbol.Blocks;
canvas.Print("Correcting data errors.");
// now blocks turn to data blocks (corrected and extracted from original blocks)
blocks = CorrectDataBlocks(blocks);
try
{
sbyte[] decodedByteArray = GetDecodedByteArray(blocks, qrCodeSymbol.Version, qrCodeSymbol.NumErrorCollectionCode);
return new DecodeResult(this, decodedByteArray, numLastCorrectionFailures);
}
catch (InvalidDataBlockException e)
{
canvas.Print(e.Message);
throw new DecodingFailedException(e.Message);
}
}
/* public byte[] decode(QRCodeImage qrCodeImage) throws DecodingFailedException{
canvas.println("Decoding started.");
int[][] intImage = imageToIntArray(qrCodeImage);
try {
QRCodeImageReader reader = new QRCodeImageReader();
qrCodeSymbol = reader.getQRCodeSymbol(intImage);
} catch (SymbolNotFoundException e) {
throw new DecodingFailedException(e.getMessage());
}
canvas.println("Created QRCode symbol.");
canvas.println("Reading symbol.");
canvas.println("Version: " + qrCodeSymbol.getVersionReference());
canvas.println("Mask pattern: " + qrCodeSymbol.getMaskPatternRefererAsString());
int[] blocks = qrCodeSymbol.getBlocks();
canvas.println("Correcting data errors.");
int[] dataBlocks = correctDataBlocks(blocks);
try {
byte[] decodedByteArray =
getDecodedByteArray(dataBlocks, qrCodeSymbol.getVersion());
canvas.println("Decoding finished.");
return decodedByteArray;
} catch (InvalidDataBlockException e) {
throw new DecodingFailedException(e.getMessage());
}
}*/
public virtual sbyte[] DecodeBytes(QRCodeImage qrCodeImage)
{
Point[] adjusts = AdjustPoints;
ArrayList results = ArrayList.Synchronized(new ArrayList(10));
numTryDecode = 0;
while (numTryDecode < adjusts.Length)
{
try
{
DecodeResult result = Decode(qrCodeImage, adjusts[numTryDecode]);
if (result.IsCorrectionSucceeded)
{
return result.DecodedBytes;
}
else
{
results.Add(result);
canvas.Print("Decoding succeeded but could not correct");
canvas.Print("all errors. Retrying..");
}
}
catch (DecodingFailedException dfe)
{
if (dfe.Message.IndexOf("Finder Pattern") >= 0)
throw dfe;
}
finally
{
numTryDecode += 1;
}
}
if (results.Count == 0)
throw new DecodingFailedException("Give up decoding");
int minErrorIndex = -1;
int minError = Int32.MaxValue;
for (int i = 0; i < results.Count; i++)
{
DecodeResult result = (DecodeResult) results[i];
if (result.NumCorrectionFailures < minError) {
minError = result.NumCorrectionFailures;
minErrorIndex = i;
}
}
canvas.Print("All trials need for correct error");
canvas.Print("Reporting #" + (minErrorIndex)+" that,");
canvas.Print("corrected minimum errors (" +minError + ")");
canvas.Print("Decoding finished.");
return ((DecodeResult)results[minErrorIndex]).DecodedBytes;
}
public virtual String Decode(QRCodeImage qrCodeImage)
{
sbyte[] data = DecodeBytes(qrCodeImage);
byte[] byteData = new byte[data.Length];
Buffer.BlockCopy(data, 0, byteData, 0, byteData.Length);
Encoding encoding = Encoding.GetEncoding(StringHelper.GuessEncoding(byteData));
/*
if (QRCodeHelper.IsUnicode(byteData))
{
encoding = Encoding.Unicode;
}
else
{
encoding = Encoding.UTF8;
}
*/
String decodedData;
decodedData = encoding.GetString(byteData);
return decodedData;
}
public virtual string Decode(QRCodeImage qrCodeImage, Encoding encoding)
{
sbyte[] data = DecodeBytes(qrCodeImage);
byte[] byteData = new byte[data.Length];
Buffer.BlockCopy(data, 0, byteData, 0, byteData.Length);
/*
char[] decodedData = new char[data.Length];
for (int i = 0; i < data.Length; i++)
{
decodedData[i] = Convert.to(data[i]);
}
return new String(decodedData);
*/
String decodedData;
decodedData = encoding.GetString(byteData);
return decodedData;
}
public virtual String decode(QRCodeImage qrCodeImage)
{
sbyte[] data = decodeBytes(qrCodeImage);
byte[] byteData = new byte[data.Length];
Buffer.BlockCopy(data, 0, byteData, 0, byteData.Length);
Encoding encoding;
if (QRCodeUtility.IsUnicode(byteData))
{
encoding = Encoding.Unicode;
}
else
{
encoding = Encoding.ASCII;
}
String decodedData;
decodedData = encoding.GetString(byteData);
return decodedData;
}
