a BBj wrapper for converting Vantiv signature hardware input to PNG files in BBj

Installation:

1. copy the files from the "dist" folder into your application
2. add SignaturePad.jar to your BBj Classpath
3. add SignaturePad.bbj to your PREFIX
4. look at Sample.bbj to learn about

Usage

use ::SignaturePad.bbj::SignaturePad

path$="d:/github/signaturepad/dist/"
file$=path$+"sample.json"

png$ = SignaturePad.getSignatureAsPng(file$)
ch=unt
OPEN (CH,mode="O_TRUNC,O_CREATE")path$+"sig_thin.png"
print(ch) png$
close (ch)

png$ = SignaturePad.getSignatureAsPng(file$,3)
ch=unt
OPEN (CH,mode="O_TRUNC,O_CREATE")path$+"sig_thick.png"
print(ch) png$
close (ch)

release

Make sure to add the license credits with your BBj app.

Credits belong to:

john-hancock

Builds images from common customer signature serialization formats

Supported formats

Vantiv

1. Points, big-endian
2. Points, little-endian
3. 3-byte ASCII

Cayan

1. Vector text

Requirements

Requires JDK 1.7 or greater

Installation

john-hancock is available as a Maven artifact from Maven Central.

Gradle

compile 'net.seabears:john-hancock:1.0.1'

Maven

<dependency>
  <groupId>net.seabears</groupId>
  <artifactId>john-hancock</artifactId>
  <version>1.0.1</version>
</dependency>

Example usage

import java.awt.image.RenderedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

import com.fasterxml.jackson.databind.ObjectMapper;
import net.seabears.signature.Converter;
import net.seabears.signature.Format;

public class Main {
    static class Signature {
        public byte[] data;
    }

    public static void main(final String[] args) throws IOException {
        final String json = "{\"data\":\"/////wAAAAAAAAAUAAoAFP////8AAAAAAAoAAP////8AAAAKAAcACv//" +
                "//8AFAAAABQAFP////8AFAAAAB4AAAAeAAoAFAAK/////wAyAAAAKAAAACgACgAyAAoAMgAUACgAFP//" +
                "//8AUAAAAFAAFP////8AWgAAAFoAFP////8AUAACAFoAEv////8AZAAAAGQAFABuABQAbgAA/////wB4" +
                "AAAAeAAUAIIAFP////8AjAAAAIwAFACWABT/////\"}";
        final Signature signature = new ObjectMapper().readValue(json, Signature.class);
        final Converter converter = new Converter();
        final RenderedImage image = converter.convert(signature.data, Format.POINTS_BIG_ENDIAN);
        ImageIO.write(image, "png", new File("example.png"));
    }
}

Configuration

Converter accepts a Config instance. This allows you to configure

1. background color
2. foreground color
3. padding

More information

• 3-byte ASCII
• Vantiv points format

License

Copyright © 2017 Corey Beres

Distributed under the MIT license