Update Demo project

@@ -18,7 +18,7 @@ DART_BIN=$(FLUTTER)/bin/dart
 DART_SRC=$(shell find . -name '*.dart')
 CLNG_SRC=$(shell find printing/ios printing/macos printing/windows printing/linux printing/android -name '*.cpp' -o -name '*.cc' -o -name '*.m' -o -name '*.h' -o -name '*.java')
 SWFT_SRC=$(shell find printing/ios printing/macos -name '*.swift')
-FONTS=pdf/open-sans.ttf pdf/open-sans-bold.ttf pdf/roboto.ttf pdf/noto-sans.ttf pdf/genyomintw.ttf demo/assets/roboto1.ttf demo/assets/roboto2.ttf demo/assets/roboto3.ttf demo/assets/open-sans.ttf demo/assets/open-sans-bold.ttf pdf/hacen-tunisia.ttf pdf/material.ttf demo/assets/material.ttf
+FONTS=pdf/open-sans.ttf pdf/open-sans-bold.ttf pdf/roboto.ttf pdf/noto-sans.ttf pdf/genyomintw.ttf pdf/hacen-tunisia.ttf pdf/material.ttf
 COV_PORT=9292
 SVG=blend_and_mask blend_mode_devil clip_path clip_path_2 clip_path_2 clip_path_3  clip_path_3  dash_path ellipse empty_defs equation fill-rule-inherit group_composite_opacity group_fill_opacity group_mask group_opacity group_opacity_transform hidden href-fill image image_def implicit_fill_with_opacity linear_gradient linear_gradient_2 linear_gradient_absolute_user_space_translate linear_gradient_percentage_bounding_translate linear_gradient_percentage_user_space_translate linear_gradient_xlink male mask mask_with_gradient mask_with_use mask_with_use2 nested_group opacity_on_path radial_gradient radial_gradient_absolute_user_space_translate radial_gradient_focal radial_gradient_percentage_bounding_translate radial_gradient_percentage_user_space_translate radial_gradient_xlink radial_ref_linear_gradient rect_rrect rect_rrect_no_ry stroke_inherit_circles style_attr text text_2 text_3 use_circles use_circles_def use_emc2 use_fill use_opacity_grid width_height_viewbox flutter_logo emoji_u1f600 text_transform dart new-pause-button new-send-circle new-gif new-camera new-image numeric_25 new-mention new-gif-button new-action-expander new-play-button aa alphachannel Ghostscript_Tiger Firefox_Logo_2017 chess_knight Flag_of_the_United_States
 
@@ -27,16 +27,6 @@ all: $(FONTS) demo/assets/logo.svg demo/assets/profile.jpg format printing/examp
 pdf/open-sans.ttf:
 	curl -L "https://fonts.gstatic.com/s/opensans/v17/mem8YaGs126MiZpBA-U1Ug.ttf" > $@
 
-demo/assets/open-sans.ttf: pdf/open-sans.ttf
-	cp $^ $@
-
-pdf/open-sans-bold.ttf:
-	curl -L "https://fonts.gstatic.com/s/opensans/v17/mem5YaGs126MiZpBA-UN7rg-VQ.ttf" > $@
-	cp $@ demo/assets/
-
-demo/assets/open-sans-bold.ttf: pdf/open-sans-bold.ttf
-	cp $^ $@
-
 pdf/roboto.ttf:
 	curl -L "https://fonts.gstatic.com/s/robotomono/v7/L0x5DF4xlVMF-BfR8bXMIghM.ttf" > $@
 
@@ -49,21 +39,9 @@ pdf/genyomintw.ttf:
 pdf/material.ttf:
 	curl -L "https://github.com/google/material-design-icons/raw/master/font/MaterialIcons-Regular.ttf" > $@
 
-demo/assets/roboto1.ttf:
-	curl -L "https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmSU5vAw.ttf" > $@
-
-demo/assets/roboto2.ttf:
-	curl -L "https://fonts.gstatic.com/s/roboto/v20/KFOlCnqEu92Fr1MmWUlvAw.ttf" > $@
-
-demo/assets/roboto3.ttf:
-	curl -L "https://fonts.gstatic.com/s/roboto/v20/KFOkCnqEu92Fr1MmgWxP.ttf" > $@
-
 demo/assets/logo.svg:
 	curl -L "http://pigment.github.io/fake-logos/logos/vector/color/auto-speed.svg" > $@
 
-demo/assets/material.ttf: pdf/material.ttf
-	cp $< $@
-
 demo/assets/profile.jpg:
 	curl -L "https://www.fakepersongenerator.com/Face/female/female20151024334209870.jpg" > $@
 

@@ -20,6 +20,7 @@ import 'package:flutter/services.dart';
 import 'package:intl/intl.dart';
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart';
+import 'package:printing/printing.dart';
 
 import '../data.dart';
 
@@ -197,8 +198,8 @@ Future<Uint8List> generateCalendar(
         pageFormat: pageFormat,
         orientation: PageOrientation.landscape,
         theme: ThemeData.withFont(
-          base: Font.ttf(await rootBundle.load('assets/open-sans.ttf')),
-          bold: Font.ttf(await rootBundle.load('assets/open-sans-bold.ttf')),
+          base: await PdfGoogleFonts.openSansRegular(),
+          bold: await PdfGoogleFonts.openSansBold(),
         ),
         buildForeground: bg == null
             ? null

@@ -18,43 +18,22 @@ import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:http/http.dart' as http;
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:printing/printing.dart';
 import 'package:vector_math/vector_math_64.dart';
 
 import '../data.dart';
 
-final _cache = <String, Uint8List>{};
-
-Future<Uint8List> _download(String url) async {
-  if (!_cache.containsKey(url)) {
-    print('Downloading $url');
-    final response = await http.get(Uri.parse(url));
-    final data = response.bodyBytes;
-    _cache[url] = Uint8List.fromList(data);
-  }
-
-  return _cache[url]!;
-}
-
-Future<pw.Font> _downloadFont(String url) async {
-  final data = await _download(url);
-  return pw.Font.ttf(data.buffer.asByteData());
-}
-
 Future<Uint8List> generateCertificate(
     PdfPageFormat pageFormat, CustomData data) async {
   final lorem = pw.LoremText();
   final pdf = pw.Document();
 
-  final libreBaskerville = await _downloadFont(
-      'https://fonts.gstatic.com/s/librebaskerville/v9/kmKnZrc3Hgbbcjq75U4uslyuy4kn0pNe.ttf');
-  final libreBaskervilleItalic = await _downloadFont(
-      'https://fonts.gstatic.com/s/librebaskerville/v9/kmKhZrc3Hgbbcjq75U4uslyuy4kn0qNcaxY.ttf');
-  final libreBaskervilleBold = await _downloadFont(
-      'https://fonts.gstatic.com/s/librebaskerville/v9/kmKiZrc3Hgbbcjq75U4uslyuy4kn0qviTjYw.ttf');
-  final robotoLight = pw.Font.ttf(await rootBundle.load('assets/roboto3.ttf'));
+  final libreBaskerville = await PdfGoogleFonts.libreBaskervilleRegular();
+  final libreBaskervilleItalic = await PdfGoogleFonts.libreBaskervilleItalic();
+  final libreBaskervilleBold = await PdfGoogleFonts.libreBaskervilleBold();
+  final robotoLight = await PdfGoogleFonts.robotoLight();
   final medail = await rootBundle.loadString('assets/medail.svg');
   final swirls = await rootBundle.loadString('assets/swirls.svg');
   final swirls1 = await rootBundle.loadString('assets/swirls1.svg');

@@ -19,6 +19,7 @@ import 'dart:typed_data';
 import 'package:flutter/services.dart';
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:printing/printing.dart';
 
 import '../data.dart';
 
@@ -26,8 +27,8 @@ Future<Uint8List> generateDocument(
     PdfPageFormat format, CustomData data) async {
   final doc = pw.Document(pageMode: PdfPageMode.outlines);
 
-  final font1 = await rootBundle.load('assets/open-sans.ttf');
-  final font2 = await rootBundle.load('assets/open-sans-bold.ttf');
+  final font1 = await PdfGoogleFonts.openSansRegular();
+  final font2 = await PdfGoogleFonts.openSansBold();
   final shape = await rootBundle.loadString('assets/document.svg');
   final swirls = await rootBundle.loadString('assets/swirls2.svg');
 
@@ -43,6 +44,10 @@ Future<Uint8List> generateDocument(
         orientation: pw.PageOrientation.portrait,
         buildBackground: (context) =>
             pw.SvgImage(svg: shape, fit: pw.BoxFit.fill),
+        theme: pw.ThemeData.withFont(
+          base: font1,
+          bold: font2,
+        ),
       ),
       build: (context) {
         return pw.Padding(
@@ -100,6 +105,10 @@ Future<Uint8List> generateDocument(
 
   doc.addPage(
     pw.Page(
+      theme: pw.ThemeData.withFont(
+        base: font1,
+        bold: font2,
+      ),
       pageFormat: format.copyWith(marginBottom: 1.5 * PdfPageFormat.cm),
       orientation: pw.PageOrientation.portrait,
       build: (context) {
@@ -124,8 +133,8 @@ Future<Uint8List> generateDocument(
 
   doc.addPage(pw.MultiPage(
       theme: pw.ThemeData.withFont(
-        base: pw.Font.ttf(font1),
-        bold: pw.Font.ttf(font2),
+        base: font1,
+        bold: font2,
       ),
       pageFormat: format.copyWith(marginBottom: 1.5 * PdfPageFormat.cm),
       orientation: pw.PageOrientation.portrait,

@@ -20,6 +20,7 @@ import 'package:flutter/services.dart';
 import 'package:intl/intl.dart';
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:printing/printing.dart';
 
 import '../data.dart';
 
@@ -100,10 +101,6 @@ class Invoice {
     // Create a PDF document.
     final doc = pw.Document();
 
-    final font1 = await rootBundle.load('assets/roboto1.ttf');
-    final font2 = await rootBundle.load('assets/roboto2.ttf');
-    final font3 = await rootBundle.load('assets/roboto3.ttf');
-
     _logo = await rootBundle.loadString('assets/logo.svg');
     _bgShape = await rootBundle.loadString('assets/invoice.svg');
 
@@ -112,9 +109,9 @@ class Invoice {
       pw.MultiPage(
         pageTheme: _buildTheme(
           pageFormat,
-          pw.Font.ttf(font1),
-          pw.Font.ttf(font2),
-          pw.Font.ttf(font3),
+          await PdfGoogleFonts.robotoRegular(),
+          await PdfGoogleFonts.robotoBold(),
+          await PdfGoogleFonts.robotoItalic(),
         ),
         header: _buildHeader,
         footer: _buildFooter,

@@ -17,9 +17,9 @@
 import 'dart:math';
 import 'dart:typed_data';
 
-import 'package:flutter/services.dart';
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:printing/printing.dart';
 
 import '../data.dart';
 
@@ -51,8 +51,8 @@ Future<Uint8List> generateReport(
   final document = pw.Document();
 
   final theme = pw.ThemeData.withFont(
-    base: pw.Font.ttf(await rootBundle.load('assets/open-sans.ttf')),
-    bold: pw.Font.ttf(await rootBundle.load('assets/open-sans-bold.ttf')),
+    base: await PdfGoogleFonts.openSansRegular(),
+    bold: await PdfGoogleFonts.openSansBold(),
   );
 
   // Top bar chart

@@ -21,6 +21,7 @@ import 'dart:typed_data';
 import 'package:flutter/services.dart';
 import 'package:pdf/pdf.dart';
 import 'package:pdf/widgets.dart' as pw;
+import 'package:printing/printing.dart';
 import 'package:printing_demo/data.dart';
 
 const PdfColor green = PdfColor.fromInt(0xff9ce5d0);
@@ -168,9 +169,9 @@ Future<pw.PageTheme> _myPageTheme(PdfPageFormat format) async {
   return pw.PageTheme(
     pageFormat: format,
     theme: pw.ThemeData.withFont(
-      base: pw.Font.ttf(await rootBundle.load('assets/open-sans.ttf')),
-      bold: pw.Font.ttf(await rootBundle.load('assets/open-sans-bold.ttf')),
-      icons: pw.Font.ttf(await rootBundle.load('assets/material.ttf')),
+      base: await PdfGoogleFonts.openSansRegular(),
+      bold: await PdfGoogleFonts.openSansBold(),
+      icons: await PdfGoogleFonts.materialIcons(),
     ),
     buildBackground: (pw.Context context) {
       return pw.FullPage(

@@ -4,18 +4,17 @@ publish_to: "none"
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.12.0-0 <3.0.0"
+  sdk: ">=2.12.0 <3.0.0"
   flutter: ">=1.16.0"
 
 dependencies:
   flutter:
     sdk: flutter
-  http: ^0.13.1
   intl: ^0.17.0
-  open_file: ^3.1.0
-  path_provider: ^2.0.1
-  printing: ^5.0.4
-  url_launcher: ^6.0.3
+  open_file: ^3.2.1
+  path_provider: ^2.0.2
+  printing: ^5.3.0
+  url_launcher: ^6.0.6
 
 dev_dependencies:
   flutter_test: