feat(codes): add Data Matrix (ECC 200, 10x10-144x144) and PDF417 encoders as jobs

Data Matrix: ASCII with digit pairs, Base256 or Upper Shift for UTF-8,
interleaved Reed-Solomon in steps, utah placement; matches ppf.datamatrix.
PDF417: pdf417gen's compaction, automatic or fixed EC level, columns fitted
to the screen, pattern tables as generated JSON resources; matches
pdf417gen. 2D matrices gain a row height and 8-at-a-time packing.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/source/codes/Qr.mc b/source/codes/Qr.mc
index 8af0f5a..1fa69da 100644
--- a/source/codes/Qr.mc
+++ b/source/codes/Qr.mc
@@ -207,9 +207,8 @@ module Qr {
         return err != null ? new Codes.CodeError(err) : job.result as MatrixCode;
     }
 
-    class QrJob extends Jobs.Job {
+    class QrJob extends Codes.MatrixJob {
 
-        var error as String? = null;
         var result as MatrixCode? = null;
 
         private var _data as ByteArray;
@@ -237,7 +236,7 @@ module Qr {
         // ec: 0 L, 1 M, 2 Q, 3 H. forceVersion 0 = smallest that fits;
         // forceMask -1 = best by penalty.
         function initialize(text as String, ec as Number, forceVersion as Number, forceMask as Number) {
-            Job.initialize();
+            MatrixJob.initialize();
             _data = Bytes.fromUtf8(text);
             _ec = ec;
             _forceMask = forceMask;
@@ -249,6 +248,12 @@ module Qr {
             return _phase * 100 / 6;
         }
 
+        // The code as a generic matrix with QR's 4-module quiet zone.
+        function matrix() as Codes.Matrix? {
+            var r = result;
+            return r != null ? new Codes.Matrix(r.size, r.size, 4, r.modules) : null;
+        }
+
         function step(budget as Number) as Boolean {
             if (_phase == 0) {
                 buildCodewords();