Improve Example document

@@ -75,7 +75,7 @@ test-pdf: $(FONTS) get-pdf .coverage
 	cd pdf; for EXAMPLE in $(shell cd pdf; find example -name '*.dart'); do dart $$EXAMPLE; done
 
 test-printing: $(FONTS) get-printing .coverage
-	cd printing; flutter test --coverage --coverage-path lcov.info
+	cd printing/example; flutter test --coverage --coverage-path ../lcov.info
 
 test-readme: $(FONTS) get-readme
 	cd test; dart extract_readme.dart

@@ -16,5 +16,6 @@ dependencies:
   crypto: "^2.0.6"
   archive: "^2.0.10"
   
+
 dev_dependencies:
   test: any

 # Changelog
 
+## 2.1.6
+
+- Add qrcode to example
+
 ## 2.1.5
 
 - Add printing completion

 import 'dart:async';
 
 import 'package:flutter/widgets.dart' as fw;
-
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart';
 import 'package:printing/printing.dart';
 
-const PdfColor green = PdfColor.fromInt(0xff9ce5d0);
-const PdfColor lightGreen = PdfColor.fromInt(0xffcdf1e7);
-
-class MyPage extends Page {
-  MyPage(
-      {PdfPageFormat pageFormat = PdfPageFormat.a4,
-      BuildCallback build,
-      EdgeInsets margin})
-      : super(pageFormat: pageFormat, margin: margin, build: build);
-
-  @override
-  void paint(Widget child, Context context) {
-    context.canvas
-      ..setColor(lightGreen)
-      ..moveTo(0, pageFormat.height)
-      ..lineTo(0, pageFormat.height - 230)
-      ..lineTo(60, pageFormat.height)
-      ..fillPath()
-      ..setColor(green)
-      ..moveTo(0, pageFormat.height)
-      ..lineTo(0, pageFormat.height - 100)
-      ..lineTo(100, pageFormat.height)
-      ..fillPath()
-      ..setColor(lightGreen)
-      ..moveTo(30, pageFormat.height)
-      ..lineTo(110, pageFormat.height - 50)
-      ..lineTo(150, pageFormat.height)
-      ..fillPath()
-      ..moveTo(pageFormat.width, 0)
-      ..lineTo(pageFormat.width, 230)
-      ..lineTo(pageFormat.width - 60, 0)
-      ..fillPath()
-      ..setColor(green)
-      ..moveTo(pageFormat.width, 0)
-      ..lineTo(pageFormat.width, 100)
-      ..lineTo(pageFormat.width - 100, 0)
-      ..fillPath()
-      ..setColor(lightGreen)
-      ..moveTo(pageFormat.width - 30, 0)
-      ..lineTo(pageFormat.width - 110, 50)
-      ..lineTo(pageFormat.width - 150, 0)
-      ..fillPath();
-
-    super.paint(child, context);
-  }
-}
-
-class Block extends StatelessWidget {
-  Block({this.title});
-
-  final String title;
-
-  @override
-  Widget build(Context context) {
-    return Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: <Widget>[
-          Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[
-            Container(
-              width: 6,
-              height: 6,
-              margin: const EdgeInsets.only(top: 2.5, left: 2, right: 5),
-              decoration:
-                  const BoxDecoration(color: green, shape: BoxShape.circle),
-            ),
-            Text(title,
-                style: Theme.of(context)
-                    .defaultTextStyle
-                    .copyWith(fontWeight: FontWeight.bold)),
-          ]),
-          Container(
-            decoration: const BoxDecoration(
-                border: BoxBorder(left: true, color: green, width: 2)),
-            padding: const EdgeInsets.only(left: 10, top: 5, bottom: 5),
-            margin: const EdgeInsets.only(left: 5),
-            child: Column(
-                crossAxisAlignment: CrossAxisAlignment.start,
-                children: <Widget>[
-                  Lorem(length: 20),
-                ]),
-          ),
-        ]);
-  }
-}
-
-class Category extends StatelessWidget {
-  Category({this.title});
-
-  final String title;
-
-  @override
-  Widget build(Context context) {
-    return Container(
-        decoration: const BoxDecoration(color: lightGreen, borderRadius: 6),
-        margin: const EdgeInsets.only(bottom: 10, top: 20),
-        padding: const EdgeInsets.fromLTRB(10, 7, 10, 4),
-        child: Text(title, textScaleFactor: 1.5));
-  }
-}
+import 'example_widgets.dart';
 
 Future<Document> generateDocument(PdfPageFormat format) async {
   final Document pdf = Document(title: 'My Résumé', author: 'David PHAM-VAN');
@@ -159,8 +60,10 @@ Future<Document> generateDocument(PdfPageFormat format) async {
                                 crossAxisAlignment: CrossAxisAlignment.start,
                                 children: <Widget>[
                                   Text('+1 403-721-6898'),
-                                  Text('p.charlesbois@yahoo.com'),
-                                  Text('wholeprices.ca')
+                                  UrlText('p.charlesbois@yahoo.com',
+                                      'mailto:p.charlesbois@yahoo.com'),
+                                  UrlText('wholeprices.ca',
+                                      'https://wholeprices.ca'),
                                 ]),
                             Padding(padding: EdgeInsets.zero)
                           ]),
@@ -175,19 +78,29 @@ Future<Document> generateDocument(PdfPageFormat format) async {
           ])),
       Container(
         height: double.infinity,
-        width: 10,
-        decoration: const BoxDecoration(
-            border: BoxBorder(left: true, color: green, width: 2)),
+        width: 2,
+        margin: const EdgeInsets.symmetric(horizontal: 5),
+        color: green,
       ),
-      Column(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[
+      Column(
+        crossAxisAlignment: CrossAxisAlignment.center,
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: <Widget>[
           ClipOval(
               child: Container(
                   width: 100,
                   height: 100,
                   color: lightGreen,
-                child:
-                    profileImage == null ? Container() : Image(profileImage)))
-      ])
+                  child: profileImage == null
+                      ? Container()
+                      : Image(profileImage))),
+          Column(children: <Widget>[
+            Percent(size: 60, value: .7, title: Text('Word')),
+            Percent(size: 60, value: .4, title: Text('Excel')),
+          ]),
+          QrCodeWidget(data: 'Parnella Charlesbois', size: 60),
+        ],
+      )
     ]),
   ));
   return pdf;

+import 'package:meta/meta.dart';
+import 'package:pdf/pdf.dart';
+import 'package:pdf/widgets.dart';
+import 'package:qr/qr.dart';
+
+const PdfColor green = PdfColor.fromInt(0xff9ce5d0);
+const PdfColor lightGreen = PdfColor.fromInt(0xffcdf1e7);
+
+class MyPage extends Page {
+  MyPage(
+      {PdfPageFormat pageFormat = PdfPageFormat.a4,
+      BuildCallback build,
+      EdgeInsets margin})
+      : super(pageFormat: pageFormat, margin: margin, build: build);
+
+  @override
+  void paint(Widget child, Context context) {
+    context.canvas
+      ..setColor(lightGreen)
+      ..moveTo(0, pageFormat.height)
+      ..lineTo(0, pageFormat.height - 230)
+      ..lineTo(60, pageFormat.height)
+      ..fillPath()
+      ..setColor(green)
+      ..moveTo(0, pageFormat.height)
+      ..lineTo(0, pageFormat.height - 100)
+      ..lineTo(100, pageFormat.height)
+      ..fillPath()
+      ..setColor(lightGreen)
+      ..moveTo(30, pageFormat.height)
+      ..lineTo(110, pageFormat.height - 50)
+      ..lineTo(150, pageFormat.height)
+      ..fillPath()
+      ..moveTo(pageFormat.width, 0)
+      ..lineTo(pageFormat.width, 230)
+      ..lineTo(pageFormat.width - 60, 0)
+      ..fillPath()
+      ..setColor(green)
+      ..moveTo(pageFormat.width, 0)
+      ..lineTo(pageFormat.width, 100)
+      ..lineTo(pageFormat.width - 100, 0)
+      ..fillPath()
+      ..setColor(lightGreen)
+      ..moveTo(pageFormat.width - 30, 0)
+      ..lineTo(pageFormat.width - 110, 50)
+      ..lineTo(pageFormat.width - 150, 0)
+      ..fillPath();
+
+    super.paint(child, context);
+  }
+}
+
+class Block extends StatelessWidget {
+  Block({this.title});
+
+  final String title;
+
+  @override
+  Widget build(Context context) {
+    return Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: <Widget>[
+          Row(crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[
+            Container(
+              width: 6,
+              height: 6,
+              margin: const EdgeInsets.only(top: 2.5, left: 2, right: 5),
+              decoration:
+                  const BoxDecoration(color: green, shape: BoxShape.circle),
+            ),
+            Text(title,
+                style: Theme.of(context)
+                    .defaultTextStyle
+                    .copyWith(fontWeight: FontWeight.bold)),
+          ]),
+          Container(
+            decoration: const BoxDecoration(
+                border: BoxBorder(left: true, color: green, width: 2)),
+            padding: const EdgeInsets.only(left: 10, top: 5, bottom: 5),
+            margin: const EdgeInsets.only(left: 5),
+            child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: <Widget>[
+                  Lorem(length: 20),
+                ]),
+          ),
+        ]);
+  }
+}
+
+class Category extends StatelessWidget {
+  Category({this.title});
+
+  final String title;
+
+  @override
+  Widget build(Context context) {
+    return Container(
+        decoration: const BoxDecoration(color: lightGreen, borderRadius: 6),
+        margin: const EdgeInsets.only(bottom: 10, top: 20),
+        padding: const EdgeInsets.fromLTRB(10, 7, 10, 4),
+        child: Text(title, textScaleFactor: 1.5));
+  }
+}
+
+typedef QrError = void Function(dynamic error);
+
+class _QrCodeWidget extends Widget {
+  _QrCodeWidget({
+    @required String data,
+    this.version,
+    this.errorCorrectionLevel,
+    this.color,
+    this.onError,
+    this.gapless = false,
+  })  : assert(data != null),
+        _qr = version == null
+            ? QrCode.fromData(
+                data: data,
+                errorCorrectLevel: errorCorrectionLevel,
+              )
+            : QrCode(
+                version,
+                errorCorrectionLevel,
+              ) {
+    // configure and make the QR code data
+    try {
+      if (version != null) {
+        _qr.addData(data);
+      }
+      _qr.make();
+    } catch (ex) {
+      if (onError != null) {
+        _hasError = true;
+        this.onError(ex);
+      }
+    }
+  }
+
+  @override
+  void layout(Context context, BoxConstraints constraints,
+      {bool parentUsesSize = false}) {
+    box = PdfRect.fromPoints(PdfPoint.zero, constraints.biggest);
+  }
+
+  /// the qr code version
+  final int version;
+
+  /// the qr code error correction level
+  final int errorCorrectionLevel;
+
+  /// the color of the dark squares
+  final PdfColor color;
+
+  final QrError onError;
+
+  final bool gapless;
+
+  // our qr code data
+  final QrCode _qr;
+
+  bool _hasError = false;
+
+  @override
+  void paint(Context context) {
+    super.paint(context);
+
+    if (_hasError) {
+      return;
+    }
+
+    final double shortestSide = box.width < box.height ? box.width : box.height;
+    assert(shortestSide > 0);
+
+    context.canvas.setFillColor(color);
+    final double squareSize = shortestSide / _qr.moduleCount.toDouble();
+    final int pxAdjustValue = gapless ? 1 : 0;
+    for (int x = 0; x < _qr.moduleCount; x++) {
+      for (int y = 0; y < _qr.moduleCount; y++) {
+        if (_qr.isDark(y, x)) {
+          context.canvas.drawRect(
+            box.left + x * squareSize,
+            box.top - (y + 1) * squareSize,
+            squareSize + pxAdjustValue,
+            squareSize + pxAdjustValue,
+          );
+        }
+      }
+    }
+
+    context.canvas.fillPath();
+  }
+}
+
+class QrCodeWidget extends StatelessWidget {
+  QrCodeWidget({
+    @required this.data,
+    this.version,
+    this.errorCorrectionLevel = QrErrorCorrectLevel.L,
+    this.color = PdfColors.black,
+    this.onError,
+    this.gapless = false,
+    this.size,
+    this.padding,
+  });
+
+  /// the qr code data
+  final String data;
+
+  /// the qr code version
+  final int version;
+
+  /// the qr code error correction level
+  final int errorCorrectionLevel;
+
+  /// the color of the dark squares
+  final PdfColor color;
+
+  final QrError onError;
+
+  final bool gapless;
+
+  final double size;
+
+  final EdgeInsets padding;
+
+  @override
+  Widget build(Context context) {
+    Widget qrcode = AspectRatio(
+        aspectRatio: 1.0,
+        child: _QrCodeWidget(
+          data: data,
+          version: version,
+          errorCorrectionLevel: errorCorrectionLevel,
+          color: color,
+          onError: onError,
+          gapless: gapless,
+        ));
+
+    if (padding != null) {
+      qrcode = Padding(padding: padding, child: qrcode);
+    }
+
+    if (size != null) {
+      qrcode = SizedBox(width: size, height: size, child: qrcode);
+    }
+
+    return qrcode;
+  }
+}
+
+class Percent extends StatelessWidget {
+  Percent({
+    @required this.size,
+    @required this.value,
+    this.title,
+    this.fontSize = 1.2,
+    this.color = green,
+    this.backgroundColor = PdfColors.grey300,
+    this.strokeWidth = 5,
+  }) : assert(size != null);
+
+  final double size;
+
+  final double value;
+
+  final Widget title;
+
+  final double fontSize;
+
+  final PdfColor color;
+
+  final PdfColor backgroundColor;
+
+  final double strokeWidth;
+
+  @override
+  Widget build(Context context) {
+    final List<Widget> widgets = <Widget>[
+      Container(
+        width: size,
+        height: size,
+        child: Stack(
+          alignment: Alignment.center,
+          fit: StackFit.expand,
+          children: <Widget>[
+            Center(
+              child: Text(
+                '${(value * 100).round().toInt()}%',
+                textScaleFactor: fontSize,
+              ),
+            ),
+            CircularProgressIndicator(
+              value: value,
+              backgroundColor: backgroundColor,
+              color: color,
+              strokeWidth: strokeWidth,
+            ),
+          ],
+        ),
+      )
+    ];
+
+    if (title != null) {
+      widgets.add(title);
+    }
+
+    return Column(children: widgets);
+  }
+}
+
+class UrlText extends StatelessWidget {
+  UrlText(this.text, this.url);
+
+  final String text;
+  final String url;
+
+  @override
+  Widget build(Context context) {
+    return UrlLink(
+      destination: url,
+      child: Text(text,
+          style: TextStyle(
+            decoration: TextDecoration.underline,
+            color: PdfColors.blue,
+          )),
+    );
+  }
+}

@@ -107,6 +107,11 @@ class MyAppState extends State<MyApp> {
 
   @override
   Widget build(BuildContext context) {
+    bool canDebug = false;
+    assert(() {
+      canDebug = true;
+      return true;
+    }());
     return RepaintBoundary(
         key: previewContainer,
         child: Scaffold(
@@ -130,6 +135,22 @@ class MyAppState extends State<MyApp> {
                     child: const Text('Save to file'), onPressed: _saveAsFile),
                 RaisedButton(
                     child: const Text('Print Html'), onPressed: _printHtml),
+                canDebug
+                    ? Row(
+                        mainAxisSize: MainAxisSize.min,
+                        children: <Widget>[
+                          const Text('Debug'),
+                          Switch.adaptive(
+                            onChanged: (bool value) {
+                              setState(() {
+                                pdf.Document.debug = value;
+                              });
+                            },
+                            value: pdf.Document.debug,
+                          ),
+                        ],
+                      )
+                    : const SizedBox(),
               ],
             ),
           ),

@@ -13,6 +13,7 @@ dependencies:
   path_provider:
   flutter_full_pdf_viewer:
   cupertino_icons:
+  qr:
 
 dev_dependencies:
   flutter_test:

 import 'dart:io';
 
 import 'package:flutter_test/flutter_test.dart';
-
 import 'package:pdf/pdf.dart';
-import 'package:pdf/widgets.dart' as pdf;
-
-import 'document.dart';
+import 'package:pdf/widgets.dart';
+import 'package:printing_example/document.dart';
 
 void main() {
   testWidgets('Pdf Generate the document', (WidgetTester tester) async {
-    final pdf.Document document = await generateDocument(PdfPageFormat.a4);
+    final Document document = await generateDocument(PdfPageFormat.a4);
+
     final File file = File('document.pdf');
     file.writeAsBytesSync(document.save());
   });

@@ -4,7 +4,7 @@ description: Plugin that allows Flutter apps to generate and print documents to
 homepage: https://github.com/DavBfr/dart_pdf/tree/master/printing
 repository: https://github.com/DavBfr/dart_pdf
 issue_tracker: https://github.com/DavBfr/dart_pdf/issues
-version: 2.1.5
+version: 2.1.6
 
 environment:
   sdk: ">=2.1.0 <3.0.0"

-../example/lib/document.dart
\ No newline at end of file