@foblex/core
Version:
A core library providing a set of utilities and interfaces for various projects.
24 lines • 5.96 kB
JavaScript
import { PointExtensions } from '../../types';
export function mixinOneToOneCentering(base) {
return class extends base {
oneToOneCentering(rect, parentRect, points) {
this.transform.scaledPosition = PointExtensions.initialize();
this.transform.position = this.getZeroPositionWithoutScale(points);
const itemsContainerWidth = rect.width / this.transform.scale;
const itemsContainerHeight = rect.height / this.transform.scale;
this.transform.scale = 1;
const newX = (parentRect.width - itemsContainerWidth * this.transform.scale) / 2 - this.transform.position.x * this.transform.scale;
const newY = (parentRect.height - itemsContainerHeight * this.transform.scale) / 2 - this.transform.position.y * this.transform.scale;
this.transform.position = PointExtensions.initialize(newX, newY);
}
getZeroPositionWithoutScale(points) {
const xPoint = points.length ? Math.min(...points.map((point) => point.x)) : 0;
const yPoint = points.length ? Math.min(...points.map((point) => point.y)) : 0;
return PointExtensions.initialize(xPoint, yPoint);
}
constructor(...args) {
super(...args);
}
};
}
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