101 lines
2.5 KiB
Plaintext
101 lines
2.5 KiB
Plaintext
import {
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createSizedArray,
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} from '../helpers/arrays';
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import pointPool from '../pooling/point_pool';
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function ShapePath() {
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this.c = false;
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this._length = 0;
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this._maxLength = 8;
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this.v = createSizedArray(this._maxLength);
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this.o = createSizedArray(this._maxLength);
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this.i = createSizedArray(this._maxLength);
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}
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ShapePath.prototype.setPathData = function (closed, len) {
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this.c = closed;
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this.setLength(len);
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var i = 0;
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while (i < len) {
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this.v[i] = pointPool.newElement();
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this.o[i] = pointPool.newElement();
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this.i[i] = pointPool.newElement();
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i += 1;
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}
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};
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ShapePath.prototype.setLength = function (len) {
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while (this._maxLength < len) {
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this.doubleArrayLength();
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}
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this._length = len;
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};
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ShapePath.prototype.doubleArrayLength = function () {
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this.v = this.v.concat(createSizedArray(this._maxLength));
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this.i = this.i.concat(createSizedArray(this._maxLength));
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this.o = this.o.concat(createSizedArray(this._maxLength));
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this._maxLength *= 2;
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};
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ShapePath.prototype.setXYAt = function (x, y, type, pos, replace) {
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var arr;
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this._length = Math.max(this._length, pos + 1);
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if (this._length >= this._maxLength) {
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this.doubleArrayLength();
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}
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switch (type) {
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case 'v':
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arr = this.v;
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break;
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case 'i':
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arr = this.i;
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break;
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case 'o':
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arr = this.o;
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break;
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default:
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arr = [];
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break;
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}
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if (!arr[pos] || (arr[pos] && !replace)) {
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arr[pos] = pointPool.newElement();
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}
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arr[pos][0] = x;
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arr[pos][1] = y;
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};
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ShapePath.prototype.setTripleAt = function (vX, vY, oX, oY, iX, iY, pos, replace) {
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this.setXYAt(vX, vY, 'v', pos, replace);
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this.setXYAt(oX, oY, 'o', pos, replace);
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this.setXYAt(iX, iY, 'i', pos, replace);
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};
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ShapePath.prototype.reverse = function () {
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var newPath = new ShapePath();
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newPath.setPathData(this.c, this._length);
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var vertices = this.v;
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var outPoints = this.o;
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var inPoints = this.i;
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var init = 0;
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if (this.c) {
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newPath.setTripleAt(vertices[0][0], vertices[0][1], inPoints[0][0], inPoints[0][1], outPoints[0][0], outPoints[0][1], 0, false);
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init = 1;
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}
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var cnt = this._length - 1;
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var len = this._length;
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var i;
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for (i = init; i < len; i += 1) {
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newPath.setTripleAt(vertices[cnt][0], vertices[cnt][1], inPoints[cnt][0], inPoints[cnt][1], outPoints[cnt][0], outPoints[cnt][1], i, false);
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cnt -= 1;
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}
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return newPath;
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};
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ShapePath.prototype.length = function () {
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return this._length;
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};
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export default ShapePath;
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