com.google.zxing.Dimension Java Examples
The following examples show how to use
com.google.zxing.Dimension.
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Example #1
| Source File: SymbolInfo.java From ZXing-Orient with Apache License 2.0 | 5 votes |
|
public static SymbolInfo lookup(int dataCodewords,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize,
boolean fail) {
for (SymbolInfo symbol : symbols) {
if (shape == SymbolShapeHint.FORCE_SQUARE && symbol.rectangular) {
continue;
}
if (shape == SymbolShapeHint.FORCE_RECTANGLE && !symbol.rectangular) {
continue;
}
if (minSize != null
&& (symbol.getSymbolWidth() < minSize.getWidth()
|| symbol.getSymbolHeight() < minSize.getHeight())) {
continue;
}
if (maxSize != null
&& (symbol.getSymbolWidth() > maxSize.getWidth()
|| symbol.getSymbolHeight() > maxSize.getHeight())) {
continue;
}
if (dataCodewords <= symbol.dataCapacity) {
return symbol;
}
}
if (fail) {
throw new IllegalArgumentException(
"Can't find a symbol arrangement that matches the message. Data codewords: "
+ dataCodewords);
}
return null;
}
Example #2
| Source File: SymbolInfo.java From RipplePower with Apache License 2.0 | 5 votes |
|
public static SymbolInfo lookup(int dataCodewords, SymbolShapeHint shape, Dimension minSize, Dimension maxSize,
boolean fail) {
for (SymbolInfo symbol : symbols) {
if (shape == SymbolShapeHint.FORCE_SQUARE && symbol.rectangular) {
continue;
}
if (shape == SymbolShapeHint.FORCE_RECTANGLE && !symbol.rectangular) {
continue;
}
if (minSize != null && (symbol.getSymbolWidth() < minSize.getWidth()
|| symbol.getSymbolHeight() < minSize.getHeight())) {
continue;
}
if (maxSize != null && (symbol.getSymbolWidth() > maxSize.getWidth()
|| symbol.getSymbolHeight() > maxSize.getHeight())) {
continue;
}
if (dataCodewords <= symbol.dataCapacity) {
return symbol;
}
}
if (fail) {
throw new IllegalArgumentException(
"Can't find a symbol arrangement that matches the message. Data codewords: " + dataCodewords);
}
return null;
}
Example #3
| Source File: SymbolInfo.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0 | 5 votes |
|
public static SymbolInfo lookup(int dataCodewords,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize,
boolean fail) {
for (SymbolInfo symbol : symbols) {
if (shape == SymbolShapeHint.FORCE_SQUARE && symbol.rectangular) {
continue;
}
if (shape == SymbolShapeHint.FORCE_RECTANGLE && !symbol.rectangular) {
continue;
}
if (minSize != null
&& (symbol.getSymbolWidth() < minSize.getWidth()
|| symbol.getSymbolHeight() < minSize.getHeight())) {
continue;
}
if (maxSize != null
&& (symbol.getSymbolWidth() > maxSize.getWidth()
|| symbol.getSymbolHeight() > maxSize.getHeight())) {
continue;
}
if (dataCodewords <= symbol.dataCapacity) {
return symbol;
}
}
if (fail) {
throw new IllegalArgumentException(
"Can't find a symbol arrangement that matches the message. Data codewords: "
+ dataCodewords);
}
return null;
}
Example #4
| Source File: SymbolInfo.java From barcodescanner-lib-aar with MIT License | 5 votes |
|
public static SymbolInfo lookup(int dataCodewords,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize,
boolean fail) {
for (SymbolInfo symbol : symbols) {
if (shape == SymbolShapeHint.FORCE_SQUARE && symbol.rectangular) {
continue;
}
if (shape == SymbolShapeHint.FORCE_RECTANGLE && !symbol.rectangular) {
continue;
}
if (minSize != null
&& (symbol.getSymbolWidth() < minSize.getWidth()
|| symbol.getSymbolHeight() < minSize.getHeight())) {
continue;
}
if (maxSize != null
&& (symbol.getSymbolWidth() > maxSize.getWidth()
|| symbol.getSymbolHeight() > maxSize.getHeight())) {
continue;
}
if (dataCodewords <= symbol.dataCapacity) {
return symbol;
}
}
if (fail) {
throw new IllegalArgumentException(
"Can't find a symbol arrangement that matches the message. Data codewords: "
+ dataCodewords);
}
return null;
}
Example #5
| Source File: SymbolInfo.java From weex with Apache License 2.0 | 5 votes |
|
public static SymbolInfo lookup(int dataCodewords,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize,
boolean fail) {
for (SymbolInfo symbol : symbols) {
if (shape == SymbolShapeHint.FORCE_SQUARE && symbol.rectangular) {
continue;
}
if (shape == SymbolShapeHint.FORCE_RECTANGLE && !symbol.rectangular) {
continue;
}
if (minSize != null
&& (symbol.getSymbolWidth() < minSize.getWidth()
|| symbol.getSymbolHeight() < minSize.getHeight())) {
continue;
}
if (maxSize != null
&& (symbol.getSymbolWidth() > maxSize.getWidth()
|| symbol.getSymbolHeight() > maxSize.getHeight())) {
continue;
}
if (dataCodewords <= symbol.dataCapacity) {
return symbol;
}
}
if (fail) {
throw new IllegalArgumentException(
"Can't find a symbol arrangement that matches the message. Data codewords: "
+ dataCodewords);
}
return null;
}
Example #6
| Source File: DataMatrixWriter.java From RipplePower with Apache License 2.0 | 4 votes |
|
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height,
Map<EncodeHintType, ?> hints) {
if (contents.isEmpty()) {
throw new IllegalArgumentException("Found empty contents");
}
if (format != BarcodeFormat.DATA_MATRIX) {
throw new IllegalArgumentException("Can only encode DATA_MATRIX, but got " + format);
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
// Try to get force shape & min / max size
SymbolShapeHint shape = SymbolShapeHint.FORCE_NONE;
Dimension minSize = null;
Dimension maxSize = null;
if (hints != null) {
SymbolShapeHint requestedShape = (SymbolShapeHint) hints.get(EncodeHintType.DATA_MATRIX_SHAPE);
if (requestedShape != null) {
shape = requestedShape;
}
Dimension requestedMinSize = (Dimension) hints.get(EncodeHintType.MIN_SIZE);
if (requestedMinSize != null) {
minSize = requestedMinSize;
}
Dimension requestedMaxSize = (Dimension) hints.get(EncodeHintType.MAX_SIZE);
if (requestedMaxSize != null) {
maxSize = requestedMaxSize;
}
}
// 1. step: Data encodation
String encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize);
SymbolInfo symbolInfo = SymbolInfo.lookup(encoded.length(), shape, minSize, maxSize, true);
// 2. step: ECC generation
String codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo);
// 3. step: Module placement in Matrix
DefaultPlacement placement = new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(),
symbolInfo.getSymbolDataHeight());
placement.place();
// 4. step: low-level encoding
return encodeLowLevel(placement, symbolInfo);
}
Example #7
| Source File: HighLevelEncoder.java From ZXing-Orient with Apache License 2.0 | 4 votes |
|
/**
* Performs message encoding of a DataMatrix message using the algorithm described in annex P
* of ISO/IEC 16022:2000(E).
*
* @param msg the message
* @param shape requested shape. May be {@code SymbolShapeHint.FORCE_NONE},
* {@code SymbolShapeHint.FORCE_SQUARE} or {@code SymbolShapeHint.FORCE_RECTANGLE}.
* @param minSize the minimum symbol size constraint or null for no constraint
* @param maxSize the maximum symbol size constraint or null for no constraint
* @return the encoded message (the char values range from 0 to 255)
*/
public static String encodeHighLevel(String msg,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize) {
//the codewords 0..255 are encoded as Unicode characters
Encoder[] encoders = {
new ASCIIEncoder(), new C40Encoder(), new TextEncoder(),
new X12Encoder(), new EdifactEncoder(), new Base256Encoder()
};
EncoderContext context = new EncoderContext(msg);
context.setSymbolShape(shape);
context.setSizeConstraints(minSize, maxSize);
if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_05);
context.setSkipAtEnd(2);
context.pos += MACRO_05_HEADER.length();
} else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_06);
context.setSkipAtEnd(2);
context.pos += MACRO_06_HEADER.length();
}
int encodingMode = ASCII_ENCODATION; //Default mode
while (context.hasMoreCharacters()) {
encoders[encodingMode].encode(context);
if (context.getNewEncoding() >= 0) {
encodingMode = context.getNewEncoding();
context.resetEncoderSignal();
}
}
int len = context.getCodewordCount();
context.updateSymbolInfo();
int capacity = context.getSymbolInfo().getDataCapacity();
if (len < capacity) {
if (encodingMode != ASCII_ENCODATION && encodingMode != BASE256_ENCODATION) {
context.writeCodeword('\u00fe'); //Unlatch (254)
}
}
//Padding
StringBuilder codewords = context.getCodewords();
if (codewords.length() < capacity) {
codewords.append(PAD);
}
while (codewords.length() < capacity) {
codewords.append(randomize253State(PAD, codewords.length() + 1));
}
return context.getCodewords().toString();
}
Example #8
| Source File: EncoderContext.java From RipplePower with Apache License 2.0 | 4 votes |
|
public void setSizeConstraints(Dimension minSize, Dimension maxSize) {
this.minSize = minSize;
this.maxSize = maxSize;
}
Example #9
| Source File: HighLevelEncoder.java From RipplePower with Apache License 2.0 | 4 votes |
|
/**
* Performs message encoding of a DataMatrix message using the algorithm
* described in annex P of ISO/IEC 16022:2000(E).
*
* @param msg
* the message
* @param shape
* requested shape. May be {@code SymbolShapeHint.FORCE_NONE},
* {@code SymbolShapeHint.FORCE_SQUARE} or
* {@code SymbolShapeHint.FORCE_RECTANGLE}.
* @param minSize
* the minimum symbol size constraint or null for no constraint
* @param maxSize
* the maximum symbol size constraint or null for no constraint
* @return the encoded message (the char values range from 0 to 255)
*/
public static String encodeHighLevel(String msg, SymbolShapeHint shape, Dimension minSize, Dimension maxSize) {
// the codewords 0..255 are encoded as Unicode characters
Encoder[] encoders = { new ASCIIEncoder(), new C40Encoder(), new TextEncoder(), new X12Encoder(),
new EdifactEncoder(), new Base256Encoder() };
EncoderContext context = new EncoderContext(msg);
context.setSymbolShape(shape);
context.setSizeConstraints(minSize, maxSize);
if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_05);
context.setSkipAtEnd(2);
context.pos += MACRO_05_HEADER.length();
} else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_06);
context.setSkipAtEnd(2);
context.pos += MACRO_06_HEADER.length();
}
int encodingMode = ASCII_ENCODATION; // Default mode
while (context.hasMoreCharacters()) {
encoders[encodingMode].encode(context);
if (context.getNewEncoding() >= 0) {
encodingMode = context.getNewEncoding();
context.resetEncoderSignal();
}
}
int len = context.getCodewordCount();
context.updateSymbolInfo();
int capacity = context.getSymbolInfo().getDataCapacity();
if (len < capacity) {
if (encodingMode != ASCII_ENCODATION && encodingMode != BASE256_ENCODATION) {
context.writeCodeword('\u00fe'); // Unlatch (254)
}
}
// Padding
StringBuilder codewords = context.getCodewords();
if (codewords.length() < capacity) {
codewords.append(PAD);
}
while (codewords.length() < capacity) {
codewords.append(randomize253State(PAD, codewords.length() + 1));
}
return context.getCodewords().toString();
}
Example #10
| Source File: DataMatrixWriter.java From barcodescanner-lib-aar with MIT License | 4 votes |
|
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType,?> hints) {
if (contents.isEmpty()) {
throw new IllegalArgumentException("Found empty contents");
}
if (format != BarcodeFormat.DATA_MATRIX) {
throw new IllegalArgumentException("Can only encode DATA_MATRIX, but got " + format);
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
// Try to get force shape & min / max size
SymbolShapeHint shape = SymbolShapeHint.FORCE_NONE;
Dimension minSize = null;
Dimension maxSize = null;
if (hints != null) {
SymbolShapeHint requestedShape = (SymbolShapeHint) hints.get(EncodeHintType.DATA_MATRIX_SHAPE);
if (requestedShape != null) {
shape = requestedShape;
}
@SuppressWarnings("deprecation")
Dimension requestedMinSize = (Dimension) hints.get(EncodeHintType.MIN_SIZE);
if (requestedMinSize != null) {
minSize = requestedMinSize;
}
@SuppressWarnings("deprecation")
Dimension requestedMaxSize = (Dimension) hints.get(EncodeHintType.MAX_SIZE);
if (requestedMaxSize != null) {
maxSize = requestedMaxSize;
}
}
//1. step: Data encodation
String encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize);
SymbolInfo symbolInfo = SymbolInfo.lookup(encoded.length(), shape, minSize, maxSize, true);
//2. step: ECC generation
String codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo);
//3. step: Module placement in Matrix
DefaultPlacement placement =
new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(), symbolInfo.getSymbolDataHeight());
placement.place();
//4. step: low-level encoding
return encodeLowLevel(placement, symbolInfo);
}
Example #11
| Source File: EncoderContext.java From barcodescanner-lib-aar with MIT License | 4 votes |
|
public void setSizeConstraints(Dimension minSize, Dimension maxSize) {
this.minSize = minSize;
this.maxSize = maxSize;
}
Example #12
| Source File: HighLevelEncoder.java From barcodescanner-lib-aar with MIT License | 4 votes |
|
/**
* Performs message encoding of a DataMatrix message using the algorithm described in annex P
* of ISO/IEC 16022:2000(E).
*
* @param msg the message
* @param shape requested shape. May be {@code SymbolShapeHint.FORCE_NONE},
* {@code SymbolShapeHint.FORCE_SQUARE} or {@code SymbolShapeHint.FORCE_RECTANGLE}.
* @param minSize the minimum symbol size constraint or null for no constraint
* @param maxSize the maximum symbol size constraint or null for no constraint
* @return the encoded message (the char values range from 0 to 255)
*/
public static String encodeHighLevel(String msg,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize) {
//the codewords 0..255 are encoded as Unicode characters
Encoder[] encoders = {
new ASCIIEncoder(), new C40Encoder(), new TextEncoder(),
new X12Encoder(), new EdifactEncoder(), new Base256Encoder()
};
EncoderContext context = new EncoderContext(msg);
context.setSymbolShape(shape);
context.setSizeConstraints(minSize, maxSize);
if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_05);
context.setSkipAtEnd(2);
context.pos += MACRO_05_HEADER.length();
} else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_06);
context.setSkipAtEnd(2);
context.pos += MACRO_06_HEADER.length();
}
int encodingMode = ASCII_ENCODATION; //Default mode
while (context.hasMoreCharacters()) {
encoders[encodingMode].encode(context);
if (context.getNewEncoding() >= 0) {
encodingMode = context.getNewEncoding();
context.resetEncoderSignal();
}
}
int len = context.getCodewordCount();
context.updateSymbolInfo();
int capacity = context.getSymbolInfo().getDataCapacity();
if (len < capacity) {
if (encodingMode != ASCII_ENCODATION && encodingMode != BASE256_ENCODATION) {
context.writeCodeword('\u00fe'); //Unlatch (254)
}
}
//Padding
StringBuilder codewords = context.getCodewords();
if (codewords.length() < capacity) {
codewords.append(PAD);
}
while (codewords.length() < capacity) {
codewords.append(randomize253State(PAD, codewords.length() + 1));
}
return context.getCodewords().toString();
}
Example #13
| Source File: DataMatrixWriter.java From weex with Apache License 2.0 | 4 votes |
|
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType,?> hints) {
if (contents.isEmpty()) {
throw new IllegalArgumentException("Found empty contents");
}
if (format != BarcodeFormat.DATA_MATRIX) {
throw new IllegalArgumentException("Can only encode DATA_MATRIX, but got " + format);
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
// Try to get force shape & min / max size
SymbolShapeHint shape = SymbolShapeHint.FORCE_NONE;
Dimension minSize = null;
Dimension maxSize = null;
if (hints != null) {
SymbolShapeHint requestedShape = (SymbolShapeHint) hints.get(EncodeHintType.DATA_MATRIX_SHAPE);
if (requestedShape != null) {
shape = requestedShape;
}
@SuppressWarnings("deprecation")
Dimension requestedMinSize = (Dimension) hints.get(EncodeHintType.MIN_SIZE);
if (requestedMinSize != null) {
minSize = requestedMinSize;
}
@SuppressWarnings("deprecation")
Dimension requestedMaxSize = (Dimension) hints.get(EncodeHintType.MAX_SIZE);
if (requestedMaxSize != null) {
maxSize = requestedMaxSize;
}
}
//1. step: Data encodation
String encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize);
SymbolInfo symbolInfo = SymbolInfo.lookup(encoded.length(), shape, minSize, maxSize, true);
//2. step: ECC generation
String codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo);
//3. step: Module placement in Matrix
DefaultPlacement placement =
new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(), symbolInfo.getSymbolDataHeight());
placement.place();
//4. step: low-level encoding
return encodeLowLevel(placement, symbolInfo);
}
Example #14
| Source File: EncoderContext.java From weex with Apache License 2.0 | 4 votes |
|
public void setSizeConstraints(Dimension minSize, Dimension maxSize) {
this.minSize = minSize;
this.maxSize = maxSize;
}
Example #15
| Source File: HighLevelEncoder.java From weex with Apache License 2.0 | 4 votes |
|
/**
* Performs message encoding of a DataMatrix message using the algorithm described in annex P
* of ISO/IEC 16022:2000(E).
*
* @param msg the message
* @param shape requested shape. May be {@code SymbolShapeHint.FORCE_NONE},
* {@code SymbolShapeHint.FORCE_SQUARE} or {@code SymbolShapeHint.FORCE_RECTANGLE}.
* @param minSize the minimum symbol size constraint or null for no constraint
* @param maxSize the maximum symbol size constraint or null for no constraint
* @return the encoded message (the char values range from 0 to 255)
*/
public static String encodeHighLevel(String msg,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize) {
//the codewords 0..255 are encoded as Unicode characters
Encoder[] encoders = {
new ASCIIEncoder(), new C40Encoder(), new TextEncoder(),
new X12Encoder(), new EdifactEncoder(), new Base256Encoder()
};
EncoderContext context = new EncoderContext(msg);
context.setSymbolShape(shape);
context.setSizeConstraints(minSize, maxSize);
if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_05);
context.setSkipAtEnd(2);
context.pos += MACRO_05_HEADER.length();
} else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_06);
context.setSkipAtEnd(2);
context.pos += MACRO_06_HEADER.length();
}
int encodingMode = ASCII_ENCODATION; //Default mode
while (context.hasMoreCharacters()) {
encoders[encodingMode].encode(context);
if (context.getNewEncoding() >= 0) {
encodingMode = context.getNewEncoding();
context.resetEncoderSignal();
}
}
int len = context.getCodewordCount();
context.updateSymbolInfo();
int capacity = context.getSymbolInfo().getDataCapacity();
if (len < capacity) {
if (encodingMode != ASCII_ENCODATION && encodingMode != BASE256_ENCODATION) {
context.writeCodeword('\u00fe'); //Unlatch (254)
}
}
//Padding
StringBuilder codewords = context.getCodewords();
if (codewords.length() < capacity) {
codewords.append(PAD);
}
while (codewords.length() < capacity) {
codewords.append(randomize253State(PAD, codewords.length() + 1));
}
return context.getCodewords().toString();
}
Example #16
| Source File: DataMatrixWriter.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0 | 4 votes |
|
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType,?> hints) {
if (contents.isEmpty()) {
throw new IllegalArgumentException("Found empty contents");
}
if (format != BarcodeFormat.DATA_MATRIX) {
throw new IllegalArgumentException("Can only encode DATA_MATRIX, but got " + format);
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
// Try to get force shape & min / max size
SymbolShapeHint shape = SymbolShapeHint.FORCE_NONE;
Dimension minSize = null;
Dimension maxSize = null;
if (hints != null) {
SymbolShapeHint requestedShape = (SymbolShapeHint) hints.get(EncodeHintType.DATA_MATRIX_SHAPE);
if (requestedShape != null) {
shape = requestedShape;
}
@SuppressWarnings("deprecation")
Dimension requestedMinSize = (Dimension) hints.get(EncodeHintType.MIN_SIZE);
if (requestedMinSize != null) {
minSize = requestedMinSize;
}
@SuppressWarnings("deprecation")
Dimension requestedMaxSize = (Dimension) hints.get(EncodeHintType.MAX_SIZE);
if (requestedMaxSize != null) {
maxSize = requestedMaxSize;
}
}
//1. step: Data encodation
String encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize);
SymbolInfo symbolInfo = SymbolInfo.lookup(encoded.length(), shape, minSize, maxSize, true);
//2. step: ECC generation
String codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo);
//3. step: Module placement in Matrix
DefaultPlacement placement =
new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(), symbolInfo.getSymbolDataHeight());
placement.place();
//4. step: low-level encoding
return encodeLowLevel(placement, symbolInfo);
}
Example #17
| Source File: EncoderContext.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0 | 4 votes |
|
public void setSizeConstraints(Dimension minSize, Dimension maxSize) {
this.minSize = minSize;
this.maxSize = maxSize;
}
Example #18
| Source File: HighLevelEncoder.java From analyzer-of-android-for-Apache-Weex with Apache License 2.0 | 4 votes |
|
/**
* Performs message encoding of a DataMatrix message using the algorithm described in annex P
* of ISO/IEC 16022:2000(E).
*
* @param msg the message
* @param shape requested shape. May be {@code SymbolShapeHint.FORCE_NONE},
* {@code SymbolShapeHint.FORCE_SQUARE} or {@code SymbolShapeHint.FORCE_RECTANGLE}.
* @param minSize the minimum symbol size constraint or null for no constraint
* @param maxSize the maximum symbol size constraint or null for no constraint
* @return the encoded message (the char values range from 0 to 255)
*/
public static String encodeHighLevel(String msg,
SymbolShapeHint shape,
Dimension minSize,
Dimension maxSize) {
//the codewords 0..255 are encoded as Unicode characters
Encoder[] encoders = {
new ASCIIEncoder(), new C40Encoder(), new TextEncoder(),
new X12Encoder(), new EdifactEncoder(), new Base256Encoder()
};
EncoderContext context = new EncoderContext(msg);
context.setSymbolShape(shape);
context.setSizeConstraints(minSize, maxSize);
if (msg.startsWith(MACRO_05_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_05);
context.setSkipAtEnd(2);
context.pos += MACRO_05_HEADER.length();
} else if (msg.startsWith(MACRO_06_HEADER) && msg.endsWith(MACRO_TRAILER)) {
context.writeCodeword(MACRO_06);
context.setSkipAtEnd(2);
context.pos += MACRO_06_HEADER.length();
}
int encodingMode = ASCII_ENCODATION; //Default mode
while (context.hasMoreCharacters()) {
encoders[encodingMode].encode(context);
if (context.getNewEncoding() >= 0) {
encodingMode = context.getNewEncoding();
context.resetEncoderSignal();
}
}
int len = context.getCodewordCount();
context.updateSymbolInfo();
int capacity = context.getSymbolInfo().getDataCapacity();
if (len < capacity) {
if (encodingMode != ASCII_ENCODATION && encodingMode != BASE256_ENCODATION) {
context.writeCodeword('\u00fe'); //Unlatch (254)
}
}
//Padding
StringBuilder codewords = context.getCodewords();
if (codewords.length() < capacity) {
codewords.append(PAD);
}
while (codewords.length() < capacity) {
codewords.append(randomize253State(PAD, codewords.length() + 1));
}
return context.getCodewords().toString();
}
Example #19
| Source File: DataMatrixWriter.java From ZXing-Orient with Apache License 2.0 | 4 votes |
|
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height, Map<EncodeHintType,?> hints) {
if (contents.isEmpty()) {
throw new IllegalArgumentException("Found empty contents");
}
if (format != BarcodeFormat.DATA_MATRIX) {
throw new IllegalArgumentException("Can only encode DATA_MATRIX, but got " + format);
}
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Requested dimensions are too small: " + width + 'x' + height);
}
// Try to get force shape & min / max size
SymbolShapeHint shape = SymbolShapeHint.FORCE_NONE;
Dimension minSize = null;
Dimension maxSize = null;
if (hints != null) {
SymbolShapeHint requestedShape = (SymbolShapeHint) hints.get(EncodeHintType.DATA_MATRIX_SHAPE);
if (requestedShape != null) {
shape = requestedShape;
}
Dimension requestedMinSize = (Dimension) hints.get(EncodeHintType.MIN_SIZE);
if (requestedMinSize != null) {
minSize = requestedMinSize;
}
Dimension requestedMaxSize = (Dimension) hints.get(EncodeHintType.MAX_SIZE);
if (requestedMaxSize != null) {
maxSize = requestedMaxSize;
}
}
//1. step: Data encodation
String encoded = HighLevelEncoder.encodeHighLevel(contents, shape, minSize, maxSize);
SymbolInfo symbolInfo = SymbolInfo.lookup(encoded.length(), shape, minSize, maxSize, true);
//2. step: ECC generation
String codewords = ErrorCorrection.encodeECC200(encoded, symbolInfo);
//3. step: Module placement in Matrix
DefaultPlacement placement =
new DefaultPlacement(codewords, symbolInfo.getSymbolDataWidth(), symbolInfo.getSymbolDataHeight());
placement.place();
//4. step: low-level encoding
return encodeLowLevel(placement, symbolInfo);
}
Example #20
| Source File: EncoderContext.java From ZXing-Orient with Apache License 2.0 | 4 votes |
|
public void setSizeConstraints(Dimension minSize, Dimension maxSize) {
this.minSize = minSize;
this.maxSize = maxSize;
}
