1fb726d48Sopenharmony_ci/*
2fb726d48Sopenharmony_ci * Copyright (C) 2022 Huawei Device Co., Ltd.
3fb726d48Sopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
4fb726d48Sopenharmony_ci * you may not use this file except in compliance with the License.
5fb726d48Sopenharmony_ci * You may obtain a copy of the License at
6fb726d48Sopenharmony_ci *
7fb726d48Sopenharmony_ci *     http://www.apache.org/licenses/LICENSE-2.0
8fb726d48Sopenharmony_ci *
9fb726d48Sopenharmony_ci * Unless required by applicable law or agreed to in writing, software
10fb726d48Sopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
11fb726d48Sopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12fb726d48Sopenharmony_ci * See the License for the specific language governing permissions and
13fb726d48Sopenharmony_ci * limitations under the License.
14fb726d48Sopenharmony_ci */
15fb726d48Sopenharmony_ci
16fb726d48Sopenharmony_ciexport const resizeCanvas = (c: HTMLCanvasElement): void => {
17fb726d48Sopenharmony_ci  let el: Element = (c.getRootNode({ composed: false }) as ShadowRoot).host;
18fb726d48Sopenharmony_ci  let dpr = window.devicePixelRatio || 1;
19fb726d48Sopenharmony_ci  c.width = Math.ceil(el.clientWidth * dpr);
20fb726d48Sopenharmony_ci  c.height = Math.ceil(el.clientHeight * dpr);
21fb726d48Sopenharmony_ci  c.style.width = `${el.clientWidth}px`;
22fb726d48Sopenharmony_ci  c.style.height = `${el.clientHeight}px`;
23fb726d48Sopenharmony_ci  c.getContext('2d', { alpha: true })?.scale(dpr, dpr);
24fb726d48Sopenharmony_ci};
25