92 lines
2.0 KiB
TypeScript
92 lines
2.0 KiB
TypeScript
import type { fdOutgoingPosition } from '../fd';
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export class Dimensions {
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public width : number;
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public height : number;
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constructor (width : number, height : number) {
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this.width = width;
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this.height = height;
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}
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public getRatio () : number {
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return this.width / this.height;
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}
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}
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interface Offset {
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x : number;
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y : number;
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}
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export class Display {
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private screen : Dimensions;
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private source : Dimensions;
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private display : Dimensions;
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private offset : Offset;
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constructor (width : number, height : number) {
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this.screen = new Dimensions(width, height);
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this.offset = { x: 0, y : 0 }
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}
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public setOffsetX (x : number) {
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this.offset.x = x;
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}
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public setOffsetY (y : number) {
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this.offset.y = y;
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}
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public setWidth (width : number) {
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this.display.width = width;
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}
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public setHeight (height : number) {
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this.display.height = height;
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}
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public setSource (width : number, height : number) {
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let offset : number;
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this.source = new Dimensions(width, height);
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if (this.source.getRatio() > this.screen.getRatio()) {
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this.display = new Dimensions(this.screen.width, Math.floor(this.source.width / this.source.getRatio()));
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offset = this.screen.height - this.display.height;
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this.offset = { x: 0, y : Math.round(offset / 2) };
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} else {
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this.display = new Dimensions(Math.floor(this.source.getRatio() * this.screen.height), this.screen.height);
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offset = this.screen.width - this.display.width;
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this.offset = { x: Math.round(offset / 2), y : 0 };
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}
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}
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public getOutgoingPosition () : fdOutgoingPosition {
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return {
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w : this.display.width,
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h : this.display.height,
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x : this.offset.x,
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y : this.offset.y
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}
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}
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public getDimensions () : Dimensions {
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return this.display;
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}
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public getOffset () : Offset {
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return this.offset;
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}
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public getScreen () : Dimensions {
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return this.screen;
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}
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public getSource () : Dimensions {
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return this.source;
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}
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}
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module.exports = { Display, Dimensions };
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export type { Offset }; |