From aaeba0d02425024ad1d170e7be6afc8f82ae7025 Mon Sep 17 00:00:00 2001
From: Khoren Markosyan <khoren.markosyan@gmail.com>
Date: Sun, 8 Jan 2023 19:10:37 +0400
Subject: [PATCH] added micro qr code support

---
 example/lib/main.dart      | 37 ++++++++++++++++++++++++-------------
 lib/src/models/format.dart | 17 ++++++++++++-----
 2 files changed, 36 insertions(+), 18 deletions(-)

diff --git a/example/lib/main.dart b/example/lib/main.dart
index 5cce3da..e808d44 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -69,6 +69,7 @@ class _DemoPageState extends State<DemoPage> {
             else if (result != null)
               ScanResultWidget(
                 result: result?.text,
+                format: result?.format?.name,
                 onScanAgain: () => setState(() => result = null),
               )
             else if (result != null)
@@ -159,28 +160,38 @@ class ScanResultWidget extends StatelessWidget {
   const ScanResultWidget({
     Key? key,
     this.result,
+    this.format,
     this.onScanAgain,
   }) : super(key: key);
 
   final String? result;
+  final String? format;
   final Function()? onScanAgain;
 
   @override
   Widget build(BuildContext context) {
     return Center(
-      child: Column(
-        mainAxisAlignment: MainAxisAlignment.center,
-        children: [
-          Text(
-            result ?? '',
-            style: Theme.of(context).textTheme.headline6,
-          ),
-          const SizedBox(height: 20),
-          ElevatedButton(
-            onPressed: onScanAgain,
-            child: const Text('Scan Again'),
-          ),
-        ],
+      child: Padding(
+        padding: const EdgeInsets.all(20.0),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Text(
+              format ?? '',
+              style: Theme.of(context).textTheme.headline5,
+            ),
+            const SizedBox(height: 20),
+            Text(
+              result ?? '',
+              style: Theme.of(context).textTheme.headline6,
+            ),
+            const SizedBox(height: 30),
+            ElevatedButton(
+              onPressed: onScanAgain,
+              child: const Text('Scan Again'),
+            ),
+          ],
+        ),
       ),
     );
   }
diff --git a/lib/src/models/format.dart b/lib/src/models/format.dart
index ee948ab..361bda5 100644
--- a/lib/src/models/format.dart
+++ b/lib/src/models/format.dart
@@ -19,8 +19,9 @@ abstract class Format {
   static const int qrCode = 1 << 13; // QR Code (2D)
   static const int upca = 1 << 14; // UPC-A (1D)
   static const int upce = 1 << 15; // UPC-E (1D)
+  static const int microQRCode = 1 << 16; // Micro QR Code
 
-  static const int oneDCodes = codabar |
+  static const int linearCodes = codabar |
       code39 |
       code93 |
       code128 |
@@ -31,8 +32,9 @@ abstract class Format {
       dataBarExpanded |
       upca |
       upce;
-  static const int twoDCodes = aztec | dataMatrix | maxiCode | pdf417 | qrCode;
-  static const int any = oneDCodes | twoDCodes;
+  static const int matrixCodes =
+      aztec | dataMatrix | maxiCode | pdf417 | qrCode | microQRCode;
+  static const int any = linearCodes | matrixCodes;
 }
 
 extension CodeFormat on int {
@@ -50,6 +52,7 @@ extension CodeFormat on int {
 
   static final List<int> supportedEncodeFormats = <int>[
     Format.qrCode,
+    // Format.microQRCode,
     Format.dataMatrix,
     Format.aztec,
     // Format.pdf417,
@@ -86,8 +89,9 @@ final Map<int, String> barcodeNames = <int, String>{
   Format.qrCode: 'QR Code',
   Format.upca: 'UPCA',
   Format.upce: 'UPCE',
-  Format.oneDCodes: 'OneD',
-  Format.twoDCodes: 'TwoD',
+  Format.microQRCode: 'Micro QR Code',
+  Format.linearCodes: 'OneD',
+  Format.matrixCodes: 'TwoD',
   Format.any: 'Any',
 };
 
@@ -108,6 +112,7 @@ final Map<int, double> barcodeRatios = <int, double>{
   Format.qrCode: 3.0 / 3.0, // recommended ratio: 3:3 (square)
   Format.upca: 3.0 / 1.0, // recommended ratio: 3:1
   Format.upce: 1.0 / 1.0, // recommended ratio: 1:1 (square)
+  Format.microQRCode: 3.0 / 3.0, // recommended ratio: 3:3 (square)
 };
 
 final Map<int, String> barcodeDemoText = <int, String>{
@@ -127,6 +132,7 @@ final Map<int, String> barcodeDemoText = <int, String>{
   Format.qrCode: 'This is a QR Code',
   Format.upca: '72527273070',
   Format.upce: '0123456',
+  Format.microQRCode: 'This is a Micro QR Code',
 };
 
 final Map<int, int> barcodeMaxTextLengths = <int, int>{
@@ -146,4 +152,5 @@ final Map<int, int> barcodeMaxTextLengths = <int, int>{
   Format.qrCode: 4296,
   Format.upca: 12,
   Format.upce: 8,
+  Format.microQRCode: 4296,
 };