jpeg_test.dart
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/*
* Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// ignore_for_file: omit_local_variable_types
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';
import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart';
import 'package:test/test.dart';
Document pdf;
void main() {
setUpAll(() {
Document.debug = true;
pdf = Document();
});
test('Pdf Jpeg Download', () async {
final PdfImage image = PdfImage.jpeg(
pdf.document,
image: await download('https://www.nfet.net/nfet.jpg'),
);
pdf.addPage(Page(
build: (Context context) => Center(child: Image(image)),
));
});
test('Pdf Jpeg Orientations', () {
pdf.addPage(
Page(
build: (Context context) => GridView(
crossAxisCount: 4,
crossAxisSpacing: 10,
children: List<Widget>.generate(
images.length,
(int index) => Image(
PdfImage.jpeg(
pdf.document,
image: base64.decode(images[index]),
),
),
),
),
),
);
});
tearDownAll(() {
final File file = File('jpeg.pdf');
file.writeAsBytesSync(pdf.save());
});
}
Future<Uint8List> download(String url) async {
final HttpClient client = HttpClient();
final HttpClientRequest request = await client.getUrl(Uri.parse(url));
final HttpClientResponse response = await request.close();
final BytesBuilder builder = await response.fold(
BytesBuilder(), (BytesBuilder b, List<int> d) => b..add(d));
final List<int> data = builder.takeBytes();
return Uint8List.fromList(data);
}
const List<String> images = <String>[
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAAAQAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCABQADADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAAAAAAAKqAAAAlWAAACqgAJVgAqoAAACVYAKqAAAA//2Q==',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAAAgAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCABQADADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAAAAAKqAAAAlWACqgAJVgAAAqoAAACVYAKqAAAAlWAD/9k=',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAAAwAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCABQADADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDVIAAAJVgAqoAAACVYAKqAAlWAAACqgAAAJVgAAAAAAA//2Q==',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAABAAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCABQADADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAKqAAAAlWACqgAAAJVgAAAqoACVYAKqAAAAlWAAAAAD/9k=',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAABQAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAwAFADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAAAAAAAAAAAKqAAlWACqgAAAJVgAqoAAAAAAAD/2Q==',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAABgAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAwAFADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAKqAAAAAAAAlWACqgAJVgAqoAAACVYAAAAAAAAAP//Z',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAABwAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAwAFADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDVIAAAAAAAJVgAqoAAACVYAKqAAlWAAAAAAAAAAAD/2Q==',
'/9j/4AAQSkZJRgABAQEA3ADcAAD/4QAiRXhpZgAASUkqAAgAAAABABIBAwABAAAACAAAAAAAAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAwAFADASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAkI/8QAFBABAAAAAAAAAAAAAAAAAAAAAP/EABQBAQAAAAAAAAAAAAAAAAAAAAD/xAAUEQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIRAxEAPwDKgAAAAAAAAAKqAAAAlWACqgAJVgAqoAAAAAAACVYAP//Z',
];