export interface ISize {
    width: number;
    height: number;
}

export class Size implements ISize {
    constructor(public width: number, public height: number) { }

    static getCurrent(el: Element) {
        let size = new Size(0, 0);

        if (window) {
            const computed = window.getComputedStyle(el);
            if (computed) {
                size.width = parseInt(computed.getPropertyValue('width'), 10);
                size.height = parseInt(computed.getPropertyValue('height'), 10);
            }
            return size;
        } else {
            console.error('Not Supported!');
            return null;
        }
    }

    static copy(s: Size) {
        return new Size(0, 0).set(s);
    }

    set(s: ISize) {
        this.width = s.width;
        this.height = s.height;
        return this;
    }
}