[Pharo-dev] [ANN] Barcode project with initial EAN13

[Torsten Bergmann]

Hi,

didnt know Barcodes are so easy to implement in Smalltalk. So I started with 
EAN13 barcode
together with unit tests. Project lives on:

  http://smalltalkhub.com/#!/~TorstenBergmann/Barcode

You can also load it using the config browser in Pharo 2.0 now.

It is already usable - thanks to the power of Pharo. Short Guide:

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To instantiate: 
        
        BarcodeEAN13 value: '2109876543210'

You can get the binarySequence of a barcode:

        (BarcodeEAN13 value: '2109876543210') binarySequence

calcuate the checksum (last digit:

        (BarcodeEAN13 value: '2109876543210') computeChecksum

or visualize the barcode:

        BarcodeEAN13 example asForm asMorph openInWorld
        
or to write to a file:

        PNGReadWriter putForm: BarcodeEAN13 example asForm onFileNamed: 
'sample.png'

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Feel free to extent with other barcode types.

Have fun
T. 

<<attachment: sample.png>>