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
242 lines (241 loc) • 7.49 kB
JavaScript
import { Pool } from "../utils/Pool";
export class Matrix {
constructor(a = 1, b = 0, c = 0, d = 1, tx = 0, ty = 0, nums = 0) {
this._bTransform = false;
if (Matrix._createFun != null) {
return Matrix._createFun(a, b, c, d, tx, ty, nums);
}
this.a = a;
this.b = b;
this.c = c;
this.d = d;
this.tx = tx;
this.ty = ty;
this._checkTransform();
}
identity() {
this.a = this.d = 1;
this.b = this.tx = this.ty = this.c = 0;
this._bTransform = false;
return this;
}
_checkTransform() {
return this._bTransform = (this.a !== 1 || this.b !== 0 || this.c !== 0 || this.d !== 1);
}
setTranslate(x, y) {
this.tx = x;
this.ty = y;
return this;
}
translate(x, y) {
this.tx += x;
this.ty += y;
return this;
}
scale(x, y) {
this.a *= x;
this.d *= y;
this.c *= x;
this.b *= y;
this.tx *= x;
this.ty *= y;
this._bTransform = true;
return this;
}
rotate(angle) {
var cos = Math.cos(angle);
var sin = Math.sin(angle);
var a1 = this.a;
var c1 = this.c;
var tx1 = this.tx;
this.a = a1 * cos - this.b * sin;
this.b = a1 * sin + this.b * cos;
this.c = c1 * cos - this.d * sin;
this.d = c1 * sin + this.d * cos;
this.tx = tx1 * cos - this.ty * sin;
this.ty = tx1 * sin + this.ty * cos;
this._bTransform = true;
return this;
}
skew(x, y) {
var tanX = Math.tan(x);
var tanY = Math.tan(y);
var a1 = this.a;
var b1 = this.b;
this.a += tanY * this.c;
this.b += tanY * this.d;
this.c += tanX * a1;
this.d += tanX * b1;
return this;
}
invertTransformPoint(out) {
var a1 = this.a;
var b1 = this.b;
var c1 = this.c;
var d1 = this.d;
var tx1 = this.tx;
var n = a1 * d1 - b1 * c1;
var a2 = d1 / n;
var b2 = -b1 / n;
var c2 = -c1 / n;
var d2 = a1 / n;
var tx2 = (c1 * this.ty - d1 * tx1) / n;
var ty2 = -(a1 * this.ty - b1 * tx1) / n;
return out.setTo(a2 * out.x + c2 * out.y + tx2, b2 * out.x + d2 * out.y + ty2);
}
transformPoint(out) {
return out.setTo(this.a * out.x + this.c * out.y + this.tx, this.b * out.x + this.d * out.y + this.ty);
}
transformPointN(out) {
return out.setTo(this.a * out.x + this.c * out.y , this.b * out.x + this.d * out.y );
}
getScaleX() {
return this.b === 0 ? this.a : Math.sqrt(this.a * this.a + this.b * this.b);
}
getScaleY() {
return this.c === 0 ? this.d : Math.sqrt(this.c * this.c + this.d * this.d);
}
invert() {
var a1 = this.a;
var b1 = this.b;
var c1 = this.c;
var d1 = this.d;
var tx1 = this.tx;
var n = a1 * d1 - b1 * c1;
this.a = d1 / n;
this.b = -b1 / n;
this.c = -c1 / n;
this.d = a1 / n;
this.tx = (c1 * this.ty - d1 * tx1) / n;
this.ty = -(a1 * this.ty - b1 * tx1) / n;
return this;
}
setTo(a, b, c, d, tx, ty) {
this.a = a, this.b = b, this.c = c, this.d = d, this.tx = tx, this.ty = ty;
return this;
}
concat(matrix) {
var a = this.a;
var c = this.c;
var tx = this.tx;
this.a = a * matrix.a + this.b * matrix.c;
this.b = a * matrix.b + this.b * matrix.d;
this.c = c * matrix.a + this.d * matrix.c;
this.d = c * matrix.b + this.d * matrix.d;
this.tx = tx * matrix.a + this.ty * matrix.c + matrix.tx;
this.ty = tx * matrix.b + this.ty * matrix.d + matrix.ty;
return this;
}
static mul(m1, m2, out) {
var aa = m1.a, ab = m1.b, ac = m1.c, ad = m1.d, atx = m1.tx, aty = m1.ty;
var ba = m2.a, bb = m2.b, bc = m2.c, bd = m2.d, btx = m2.tx, bty = m2.ty;
if (bb !== 0 || bc !== 0) {
out.a = aa * ba + ab * bc;
out.b = aa * bb + ab * bd;
out.c = ac * ba + ad * bc;
out.d = ac * bb + ad * bd;
out.tx = ba * atx + bc * aty + btx;
out.ty = bb * atx + bd * aty + bty;
}
else {
out.a = aa * ba;
out.b = ab * bd;
out.c = ac * ba;
out.d = ad * bd;
out.tx = ba * atx + btx;
out.ty = bd * aty + bty;
}
return out;
}
static mul16(m1, m2, out) {
var aa = m1.a, ab = m1.b, ac = m1.c, ad = m1.d, atx = m1.tx, aty = m1.ty;
var ba = m2.a, bb = m2.b, bc = m2.c, bd = m2.d, btx = m2.tx, bty = m2.ty;
if (bb !== 0 || bc !== 0) {
out[0] = aa * ba + ab * bc;
out[1] = aa * bb + ab * bd;
out[4] = ac * ba + ad * bc;
out[5] = ac * bb + ad * bd;
out[12] = ba * atx + bc * aty + btx;
out[13] = bb * atx + bd * aty + bty;
}
else {
out[0] = aa * ba;
out[1] = ab * bd;
out[4] = ac * ba;
out[5] = ad * bd;
out[12] = ba * atx + btx;
out[13] = bd * aty + bty;
}
return out;
}
scaleEx(x, y) {
var ba = this.a, bb = this.b, bc = this.c, bd = this.d;
if (bb !== 0 || bc !== 0) {
this.a = x * ba;
this.b = x * bb;
this.c = y * bc;
this.d = y * bd;
}
else {
this.a = x * ba;
this.b = 0 * bd;
this.c = 0 * ba;
this.d = y * bd;
}
this._bTransform = true;
}
rotateEx(angle) {
var cos = Math.cos(angle);
var sin = Math.sin(angle);
var ba = this.a, bb = this.b, bc = this.c, bd = this.d;
if (bb !== 0 || bc !== 0) {
this.a = cos * ba + sin * bc;
this.b = cos * bb + sin * bd;
this.c = -sin * ba + cos * bc;
this.d = -sin * bb + cos * bd;
}
else {
this.a = cos * ba;
this.b = sin * bd;
this.c = -sin * ba;
this.d = cos * bd;
}
this._bTransform = true;
}
clone() {
var dec = Matrix.create();
dec.a = this.a;
dec.b = this.b;
dec.c = this.c;
dec.d = this.d;
dec.tx = this.tx;
dec.ty = this.ty;
dec._bTransform = this._bTransform;
return dec;
}
copyTo(dec) {
dec.a = this.a;
dec.b = this.b;
dec.c = this.c;
dec.d = this.d;
dec.tx = this.tx;
dec.ty = this.ty;
dec._bTransform = this._bTransform;
return dec;
}
toString() {
return this.a + "," + this.b + "," + this.c + "," + this.d + "," + this.tx + "," + this.ty;
}
destroy() {
this.recover();
}
recover() {
Pool.recover("Matrix", this.identity());
}
static create() {
return Pool.getItemByClass("Matrix", Matrix);
}
}
Matrix.EMPTY = new Matrix();
Matrix.TEMP = new Matrix();
Matrix._createFun = null;