1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16export class Ratio { 17 private w: number; 18 private h: number; 19 20 constructor(w: number, h: number) { 21 this.w = w; 22 this.h = h; 23 } 24 25 set(w: number, h: number) { 26 this.w = w; 27 this.h = h; 28 } 29 30 getW(): number { 31 return this.w; 32 } 33 34 getH(): number { 35 return this.h; 36 } 37 38 getRate(): number { 39 return (this.w / this.h); 40 } 41 42 isValid(): boolean { 43 return (this.w > 0 && this.h > 0); 44 } 45}