Robert Nystrom
4cc31f8f4f
There are no behavioral changes here, I just ran `dart format` on the `tests/lib/html/` directory. Change-Id: I221b2a370adc393e49621db1d37aa6eeb09b3015 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425329 Reviewed-by: Srujan Gaddam <srujzs@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
112 lines
2.9 KiB
Dart
112 lines
2.9 KiB
Dart
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library canvas_rendering_context_2d_test;
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import 'dart:async';
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import 'dart:html';
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import 'dart:math';
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import 'canvas_rendering_util.dart';
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import 'package:expect/async_helper.dart';
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Future testWithThreeParams() async {
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setupFunc();
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// Draw an image to the canvas from an image element.
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var dataUrl = otherCanvas.toDataUrl('image/gif');
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var img = new ImageElement();
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var loadedFuture = img.onLoad.first;
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img.onError.listen((_) {
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throw ('URL failed to load.');
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});
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img.src = dataUrl;
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await loadedFuture;
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context.drawImage(img, 50, 50);
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expectPixelFilled(50, 50);
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expectPixelFilled(55, 55);
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expectPixelFilled(59, 59);
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expectPixelUnfilled(60, 60);
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expectPixelUnfilled(0, 0);
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expectPixelUnfilled(70, 70);
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tearDownFunc();
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}
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Future testWithFiveParams() async {
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setupFunc();
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// Draw an image to the canvas from an image element and scale it.
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var dataUrl = otherCanvas.toDataUrl('image/gif');
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var img = new ImageElement();
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var loadedFuture = img.onLoad.first;
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img.onError.listen((_) {
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throw ('URL failed to load.');
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});
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img.src = dataUrl;
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await loadedFuture;
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context.drawImageToRect(img, new Rectangle(50, 50, 20, 20));
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expectPixelFilled(50, 50);
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expectPixelFilled(55, 55);
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expectPixelFilled(59, 59);
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expectPixelFilled(60, 60);
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expectPixelFilled(69, 69);
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expectPixelUnfilled(70, 70);
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expectPixelUnfilled(0, 0);
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expectPixelUnfilled(80, 80);
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tearDownFunc();
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}
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Future testWithNineParams() async {
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setupFunc();
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// Draw an image to the canvas from an image element and scale it.
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otherContext.fillStyle = "blue";
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otherContext.fillRect(5, 5, 5, 5);
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var dataUrl = otherCanvas.toDataUrl('image/gif');
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var img = new ImageElement();
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var loadedFuture = img.onLoad.first;
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img.onError.listen((_) {
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throw ('URL failed to load.');
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});
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img.src = dataUrl;
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await loadedFuture;
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// This will take a 6x6 square from the first canvas from position 2,2
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// and then scale it to a 20x20 square and place it to the second
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// canvas at 50,50.
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context.drawImageToRect(
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img,
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new Rectangle(50, 50, 20, 20),
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sourceRect: new Rectangle(2, 2, 6, 6),
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);
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checkPixel(readPixel(50, 50), [255, 0, 0, 255]);
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checkPixel(readPixel(55, 55), [255, 0, 0, 255]);
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checkPixel(readPixel(60, 50), [255, 0, 0, 255]);
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checkPixel(readPixel(65, 65), [0, 0, 255, 255]);
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checkPixel(readPixel(69, 69), [0, 0, 255, 255]);
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expectPixelFilled(50, 50);
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expectPixelFilled(55, 55);
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expectPixelFilled(59, 59);
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expectPixelFilled(60, 60);
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expectPixelFilled(69, 69);
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expectPixelUnfilled(70, 70);
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expectPixelUnfilled(0, 0);
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expectPixelUnfilled(80, 80);
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tearDownFunc();
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}
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main() {
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asyncTest(() async {
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await testWithThreeParams();
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await testWithFiveParams();
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await testWithNineParams();
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});
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}
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