Method leftKeepRatio

js/selecter.js:436–442

()

  }

  leftKeepRatio() {
    const newW = this.area.rect.clientHeight * this.placedRatio;
    const suggLeft = this.main.elLeft() +
      (this.area.el.clientWidth - this.right - newW - 2);
    const absLeft = this.fixCropperLeft(suggLeft);
    this.setLeft(absLeft - this.main.elLeft());
  }

  topKeepRatio() {
    const newH = this.area.rect.clientWidth / this.placedRatio;