laya-coreui-es
Version:
laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改
144 lines (143 loc) • 4.82 kB
JavaScript
import { Pool } from "../utils/Pool";
import { Point } from "./Point";
export class Rectangle {
constructor(x = 0, y = 0, width = 0, height = 0) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
get right() {
return this.x + this.width;
}
get bottom() {
return this.y + this.height;
}
setTo(x, y, width, height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
return this;
}
reset() {
this.x = this.y = this.width = this.height = 0;
return this;
}
recover() {
if (this == Rectangle.TEMP || this == Rectangle.EMPTY) {
console.log("recover Temp or Empty:", this);
return;
}
Pool.recover("Rectangle", this.reset());
}
static create() {
return Pool.getItemByClass("Rectangle", Rectangle);
}
copyFrom(source) {
this.x = source.x;
this.y = source.y;
this.width = source.width;
this.height = source.height;
return this;
}
contains(x, y) {
if (this.width <= 0 || this.height <= 0)
return false;
if (x >= this.x && x < this.right) {
if (y >= this.y && y < this.bottom) {
return true;
}
}
return false;
}
intersects(rect) {
return !(rect.x > (this.x + this.width) || (rect.x + rect.width) < this.x || rect.y > (this.y + this.height) || (rect.y + rect.height) < this.y);
}
intersection(rect, out = null) {
if (!this.intersects(rect))
return null;
out || (out = new Rectangle());
out.x = Math.max(this.x, rect.x);
out.y = Math.max(this.y, rect.y);
out.width = Math.min(this.right, rect.right) - out.x;
out.height = Math.min(this.bottom, rect.bottom) - out.y;
return out;
}
union(source, out = null) {
out || (out = new Rectangle());
this.clone(out);
if (source.width <= 0 || source.height <= 0)
return out;
out.addPoint(source.x, source.y);
out.addPoint(source.right, source.bottom);
return this;
}
clone(out = null) {
out || (out = new Rectangle());
out.x = this.x;
out.y = this.y;
out.width = this.width;
out.height = this.height;
return out;
}
toString() {
return this.x + "," + this.y + "," + this.width + "," + this.height;
}
equals(rect) {
if (!rect || rect.x !== this.x || rect.y !== this.y || rect.width !== this.width || rect.height !== this.height)
return false;
return true;
}
addPoint(x, y) {
this.x > x && (this.width += this.x - x, this.x = x);
this.y > y && (this.height += this.y - y, this.y = y);
if (this.width < x - this.x)
this.width = x - this.x;
if (this.height < y - this.y)
this.height = y - this.y;
return this;
}
_getBoundPoints() {
var rst = Rectangle._temB;
rst.length = 0;
if (this.width == 0 || this.height == 0)
return rst;
rst.push(this.x, this.y, this.x + this.width, this.y, this.x, this.y + this.height, this.x + this.width, this.y + this.height);
return rst;
}
static _getBoundPointS(x, y, width, height) {
var rst = Rectangle._temA;
rst.length = 0;
if (width == 0 || height == 0)
return rst;
rst.push(x, y, x + width, y, x, y + height, x + width, y + height);
return rst;
}
static _getWrapRec(pointList, rst = null) {
if (!pointList || pointList.length < 1)
return rst ? rst.setTo(0, 0, 0, 0) : Rectangle.TEMP.setTo(0, 0, 0, 0);
rst = rst ? rst : Rectangle.create();
var i, len = pointList.length, minX, maxX, minY, maxY, tPoint = Point.TEMP;
minX = minY = 99999;
maxX = maxY = -minX;
for (i = 0; i < len; i += 2) {
tPoint.x = pointList[i];
tPoint.y = pointList[i + 1];
minX = minX < tPoint.x ? minX : tPoint.x;
minY = minY < tPoint.y ? minY : tPoint.y;
maxX = maxX > tPoint.x ? maxX : tPoint.x;
maxY = maxY > tPoint.y ? maxY : tPoint.y;
}
return rst.setTo(minX, minY, maxX - minX, maxY - minY);
}
isEmpty() {
if (this.width <= 0 || this.height <= 0)
return true;
return false;
}
}
Rectangle.EMPTY = new Rectangle();
Rectangle.TEMP = new Rectangle();
Rectangle._temB = [];
Rectangle._temA = [];