UPCEReader class
Implements decoding of the UPC-E format.
This is a great reference for UPC-E information.
@author Sean Owen
- Inheritance
-
- Object
- OneDReader
- UPCEANReader
- UPCEReader
Constructors
Properties
- barcodeFormat → BarcodeFormat
-
Get the format of this decoder.
no setteroverride
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
checkChecksum(
String s) → bool -
@param s string of digits to check
@return {@link #checkStandardUPCEANChecksum(CharSequence)}
@throws FormatException if the string does not contain only digits
override
-
decode(
BinaryBitmap image, [Map< DecodeHintType, Object> ? hints]) → Result -
Locates and decodes a barcode in some format within an
image. This method also acceptshints, each possibly associated to some data, which may help the implementation decode.inherited -
decodeEnd(
BitArray row, int endStart) → List< int> -
override
-
decodeMiddle(
BitArray row, List< int> startRange, StringBuilder result) → int -
Subclasses override this to decode the portion of a barcode between the start
and end guard patterns.
override
-
decodeRow(
int rowNumber, BitArray row, Map< DecodeHintType, Object> ? hints, [List<int> ? startGuardRange]) → Result -
Like {@link #decodeRow(int, BitArray, Map)}, but
allows caller to inform method about where the UPC/EAN start pattern is
found. This allows this to be computed once and reused across many implementations.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reset(
) → void -
Resets any internal state the implementation has after a decode, to prepare it
for reuse.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
convertUPCEtoUPCA(
String upce) → String - Expands a UPC-E value back into its full, equivalent UPC-A code value.
Constants
-
NUMSYS_AND_CHECK_DIGIT_PATTERNS
→ const List<
List< int> > - See {@link #L_AND_G_PATTERNS}; these values similarly represent patterns of even-odd parity encodings of digits that imply both the number system (0 or 1) used, and the check digit.