512 lines
19 KiB
JavaScript
512 lines
19 KiB
JavaScript
/* eslint-disable max-len */
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import 'pathseg';
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import $ from 'jquery';
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window.$ = $;
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import { NS } from '../../../instrumented/common/namespaces.js';
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import * as utilities from '../../../instrumented/svgcanvas/utilities.js';
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import * as transformlist from '../../../instrumented/svgcanvas/svgtransformlist.js';
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import * as math from '../../../instrumented/svgcanvas/math.js';
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import * as path from '../../../instrumented/svgcanvas/path.js';
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import setAssertionMethods from '../../support/assert-close.js';
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chai.use(setAssertionMethods);
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describe('utilities bbox', function () {
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/**
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* Create an SVG element for a mock.
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* @param {module:utilities.SVGElementJSON} jsonMap
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* @returns {SVGElement}
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*/
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function mockCreateSVGElement (jsonMap) {
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const elem = document.createElementNS(NS.SVG, jsonMap.element);
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Object.entries(jsonMap.attr).forEach(([ attr, value ]) => {
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elem.setAttribute(attr, value);
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});
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return elem;
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}
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let mockaddSVGElementFromJsonCallCount = 0;
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/**
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* Mock of {@link module:utilities.EditorContext#addSVGElementFromJson}.
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* @param {module:utilities.SVGElementJSON} json
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* @returns {SVGElement}
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*/
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function mockaddSVGElementFromJson (json) {
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const elem = mockCreateSVGElement(json);
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svgroot.append(elem);
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mockaddSVGElementFromJsonCallCount++;
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return elem;
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}
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const mockPathActions = {
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resetOrientation (pth) {
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if (utilities.isNullish(pth) || pth.nodeName !== 'path') { return false; }
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const tlist = transformlist.getTransformList(pth);
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const m = math.transformListToTransform(tlist).matrix;
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tlist.clear();
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pth.removeAttribute('transform');
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const segList = pth.pathSegList;
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const len = segList.numberOfItems;
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// let lastX, lastY;
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for (let i = 0; i < len; ++i) {
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const seg = segList.getItem(i);
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const type = seg.pathSegType;
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if (type === 1) { continue; }
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const pts = [];
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[ '', 1, 2 ].forEach(function (n) {
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const x = seg['x' + n]; const y = seg['y' + n];
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if (x !== undefined && y !== undefined) {
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const pt = math.transformPoint(x, y, m);
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pts.splice(pts.length, 0, pt.x, pt.y);
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}
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});
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path.replacePathSeg(type, i, pts, pth);
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}
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// path.reorientGrads(pth, m);
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return undefined;
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}
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};
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const EPSILON = 0.001;
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let svgroot;
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beforeEach(() => {
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document.body.textContent = '';
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// const svg = document.createElementNS(NS.SVG, 'svg');
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const sandbox = document.createElement('div');
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sandbox.id = 'sandbox';
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document.body.append(sandbox);
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svgroot = mockCreateSVGElement({
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element: 'svg',
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attr: { id: 'svgroot' }
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});
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sandbox.append(svgroot);
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// We're reusing ID's so we need to do this for transforms.
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transformlist.resetListMap();
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path.init(null);
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mockaddSVGElementFromJsonCallCount = 0;
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});
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it('Test svgedit.utilities package', function () {
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assert.ok(utilities);
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assert.ok(utilities.getBBoxWithTransform);
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assert.ok(utilities.getStrokedBBox);
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assert.ok(utilities.getRotationAngleFromTransformList);
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assert.ok(utilities.getRotationAngle);
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});
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it('Test getBBoxWithTransform and no transform', function () {
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const { getBBoxWithTransform } = utilities;
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M0,1 L2,3' }
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});
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svgroot.append(elem);
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let bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 2, height: 2 });
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10' }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'line',
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attr: { id: 'line', x1: '0', y1: '1', x2: '5', y2: '6' }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 5 });
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10' }
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});
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const g = mockCreateSVGElement({
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element: 'g',
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attr: {}
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});
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g.append(elem);
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svgroot.append(g);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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g.remove();
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});
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it.skip('Test getBBoxWithTransform and a rotation transform', function () {
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const { getBBoxWithTransform } = utilities;
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M10,10 L20,20', transform: 'rotate(45 10,10)' }
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});
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svgroot.append(elem);
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let bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, 10, EPSILON);
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assert.close(bbox.y, 10, EPSILON);
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assert.close(bbox.width, 0, EPSILON);
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assert.close(bbox.height, Math.sqrt(100 + 100), EPSILON);
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '10', y: '10', width: '10', height: '20', transform: 'rotate(90 15,20)' }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, 5, EPSILON);
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assert.close(bbox.y, 15, EPSILON);
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assert.close(bbox.width, 20, EPSILON);
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assert.close(bbox.height, 10, EPSILON);
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assert.equal(mockaddSVGElementFromJsonCallCount, 1);
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elem.remove();
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const rect = { x: 10, y: 10, width: 10, height: 20 };
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const angle = 45;
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const origin = { x: 15, y: 20 }; // eslint-disable-line no-shadow
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect2', x: rect.x, y: rect.y, width: rect.width, height: rect.height, transform: 'rotate(' + angle + ' ' + origin.x + ',' + origin.y + ')' }
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});
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svgroot.append(elem);
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mockaddSVGElementFromJsonCallCount = 0;
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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const r2 = rotateRect(rect, angle, origin);
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assert.close(bbox.x, r2.x, EPSILON, 'rect2 x is ' + r2.x);
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assert.close(bbox.y, r2.y, EPSILON, 'rect2 y is ' + r2.y);
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assert.close(bbox.width, r2.width, EPSILON, 'rect2 width is' + r2.width);
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assert.close(bbox.height, r2.height, EPSILON, 'rect2 height is ' + r2.height);
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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elem.remove();
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// Same as previous but wrapped with g and the transform is with the g.
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect3', x: rect.x, y: rect.y, width: rect.width, height: rect.height }
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});
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const g = mockCreateSVGElement({
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element: 'g',
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attr: { transform: 'rotate(' + angle + ' ' + origin.x + ',' + origin.y + ')' }
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});
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g.append(elem);
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svgroot.append(g);
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mockaddSVGElementFromJsonCallCount = 0;
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bbox = getBBoxWithTransform(g, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, r2.x, EPSILON, 'rect2 x is ' + r2.x);
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assert.close(bbox.y, r2.y, EPSILON, 'rect2 y is ' + r2.y);
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assert.close(bbox.width, r2.width, EPSILON, 'rect2 width is' + r2.width);
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assert.close(bbox.height, r2.height, EPSILON, 'rect2 height is ' + r2.height);
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assert.equal(mockaddSVGElementFromJsonCallCount, 0);
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g.remove();
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elem = mockCreateSVGElement({
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element: 'ellipse',
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attr: { id: 'ellipse1', cx: '100', cy: '100', rx: '50', ry: '50', transform: 'rotate(45 100,100)' }
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});
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svgroot.append(elem);
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mockaddSVGElementFromJsonCallCount = 0;
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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/** @todo: Review these test the BBox algorithm is using the bezier control points to calculate the bounding box. Should be 50, 50, 100, 100. */
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// assert.ok(bbox.x > 45 && bbox.x <= 50);
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assert.ok(bbox.y > 45 && bbox.y <= 50);
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// assert.ok(bbox.width >= 100 && bbox.width < 110);
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// assert.ok(bbox.height >= 100 && bbox.height < 110);
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assert.equal(mockaddSVGElementFromJsonCallCount, 1);
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elem.remove();
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});
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it.skip('Test getBBoxWithTransform with rotation and matrix transforms', function () {
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const { getBBoxWithTransform } = utilities;
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let tx = 10; // tx right
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let ty = 10; // tx down
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let txInRotatedSpace = Math.sqrt(tx * tx + ty * ty); // translate in rotated 45 space.
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let tyInRotatedSpace = 0;
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let matrix = 'matrix(1,0,0,1,' + txInRotatedSpace + ',' + tyInRotatedSpace + ')';
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M10,10 L20,20', transform: 'rotate(45 10,10) ' + matrix }
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});
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svgroot.append(elem);
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let bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, 10 + tx, EPSILON);
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assert.close(bbox.y, 10 + ty, EPSILON);
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assert.close(bbox.width, 0, EPSILON);
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assert.close(bbox.height, Math.sqrt(100 + 100), EPSILON);
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elem.remove();
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txInRotatedSpace = tx; // translate in rotated 90 space.
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tyInRotatedSpace = -ty;
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matrix = 'matrix(1,0,0,1,' + txInRotatedSpace + ',' + tyInRotatedSpace + ')';
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '10', y: '10', width: '10', height: '20', transform: 'rotate(90 15,20) ' + matrix }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, 5 + tx, EPSILON);
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assert.close(bbox.y, 15 + ty, EPSILON);
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assert.close(bbox.width, 20, EPSILON);
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assert.close(bbox.height, 10, EPSILON);
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elem.remove();
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const rect = { x: 10, y: 10, width: 10, height: 20 };
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const angle = 45;
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const origin = { x: 15, y: 20 }; // eslint-disable-line no-shadow
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tx = 10; // tx right
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ty = 10; // tx down
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txInRotatedSpace = Math.sqrt(tx * tx + ty * ty); // translate in rotated 45 space.
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tyInRotatedSpace = 0;
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matrix = 'matrix(1,0,0,1,' + txInRotatedSpace + ',' + tyInRotatedSpace + ')';
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect2', x: rect.x, y: rect.y, width: rect.width, height: rect.height, transform: 'rotate(' + angle + ' ' + origin.x + ',' + origin.y + ') ' + matrix }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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const r2 = rotateRect(rect, angle, origin);
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assert.close(bbox.x, r2.x + tx, EPSILON, 'rect2 x is ' + r2.x);
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assert.close(bbox.y, r2.y + ty, EPSILON, 'rect2 y is ' + r2.y);
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assert.close(bbox.width, r2.width, EPSILON, 'rect2 width is' + r2.width);
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assert.close(bbox.height, r2.height, EPSILON, 'rect2 height is ' + r2.height);
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elem.remove();
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// Same as previous but wrapped with g and the transform is with the g.
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect3', x: rect.x, y: rect.y, width: rect.width, height: rect.height }
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});
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const g = mockCreateSVGElement({
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element: 'g',
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attr: { transform: 'rotate(' + angle + ' ' + origin.x + ',' + origin.y + ') ' + matrix }
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});
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g.append(elem);
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svgroot.append(g);
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bbox = getBBoxWithTransform(g, mockaddSVGElementFromJson, mockPathActions);
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assert.close(bbox.x, r2.x + tx, EPSILON, 'rect2 x is ' + r2.x);
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assert.close(bbox.y, r2.y + ty, EPSILON, 'rect2 y is ' + r2.y);
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assert.close(bbox.width, r2.width, EPSILON, 'rect2 width is' + r2.width);
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assert.close(bbox.height, r2.height, EPSILON, 'rect2 height is ' + r2.height);
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g.remove();
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elem = mockCreateSVGElement({
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element: 'ellipse',
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attr: { id: 'ellipse1', cx: '100', cy: '100', rx: '50', ry: '50', transform: 'rotate(45 100,100) ' + matrix }
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});
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svgroot.append(elem);
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bbox = getBBoxWithTransform(elem, mockaddSVGElementFromJson, mockPathActions);
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/** @todo: the BBox algorithm is using the bezier control points to calculate the bounding box. Should be 50, 50, 100, 100. */
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// assert.ok(bbox.x > 45 + tx && bbox.x <= 50 + tx);
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assert.ok(bbox.y > 45 + ty && bbox.y <= 50 + ty);
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// assert.ok(bbox.width >= 100 && bbox.width < 110);
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// assert.ok(bbox.height >= 100 && bbox.height < 110);
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elem.remove();
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});
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it('Test getStrokedBBox with stroke-width 10', function () {
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const { getStrokedBBox } = utilities;
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const strokeWidth = 10;
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M0,1 L2,3', 'stroke-width': strokeWidth }
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});
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svgroot.append(elem);
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let bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0 - strokeWidth / 2, y: 1 - strokeWidth / 2, width: 2 + strokeWidth, height: 2 + strokeWidth });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10', 'stroke-width': strokeWidth }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0 - strokeWidth / 2, y: 1 - strokeWidth / 2, width: 5 + strokeWidth, height: 10 + strokeWidth });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'line',
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attr: { id: 'line', x1: '0', y1: '1', x2: '5', y2: '6', 'stroke-width': strokeWidth }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0 - strokeWidth / 2, y: 1 - strokeWidth / 2, width: 5 + strokeWidth, height: 5 + strokeWidth });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10', 'stroke-width': strokeWidth }
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});
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const g = mockCreateSVGElement({
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element: 'g',
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attr: {}
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});
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g.append(elem);
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svgroot.append(g);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0 - strokeWidth / 2, y: 1 - strokeWidth / 2, width: 5 + strokeWidth, height: 10 + strokeWidth });
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g.remove();
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});
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it("Test getStrokedBBox with stroke-width 'none'", function () {
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const { getStrokedBBox } = utilities;
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M0,1 L2,3', 'stroke-width': 'none' }
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});
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svgroot.append(elem);
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let bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 2, height: 2 });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10', 'stroke-width': 'none' }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'line',
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attr: { id: 'line', x1: '0', y1: '1', x2: '5', y2: '6', 'stroke-width': 'none' }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 5 });
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elem.remove();
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10', 'stroke-width': 'none' }
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});
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const g = mockCreateSVGElement({
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element: 'g',
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attr: {}
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});
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g.append(elem);
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svgroot.append(g);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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g.remove();
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});
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it('Test getStrokedBBox with no stroke-width attribute', function () {
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const { getStrokedBBox } = utilities;
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let elem = mockCreateSVGElement({
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element: 'path',
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attr: { id: 'path', d: 'M0,1 L2,3' }
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});
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svgroot.append(elem);
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let bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 2, height: 2 });
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elem.remove();
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|
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10' }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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elem.remove();
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|
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elem = mockCreateSVGElement({
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element: 'line',
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attr: { id: 'line', x1: '0', y1: '1', x2: '5', y2: '6' }
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});
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svgroot.append(elem);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 5 });
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elem.remove();
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|
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elem = mockCreateSVGElement({
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element: 'rect',
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attr: { id: 'rect', x: '0', y: '1', width: '5', height: '10' }
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|
});
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const g = mockCreateSVGElement({
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element: 'g',
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|
attr: {}
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});
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g.append(elem);
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svgroot.append(g);
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bbox = getStrokedBBox([ elem ], mockaddSVGElementFromJson, mockPathActions);
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assert.deepEqual(bbox, { x: 0, y: 1, width: 5, height: 10 });
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g.remove();
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});
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|
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|
/**
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|
* Returns radians for degrees.
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|
* @param {Float} degrees
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|
* @returns {Float}
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|
*/
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|
function radians (degrees) {
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|
return degrees * Math.PI / 180;
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|
}
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|
|
|
/**
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|
*
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|
* @param {module:utilities.BBoxObject} point
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|
* @param {Float} angle
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|
* @param {module:math.XYObject} origin
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|
* @returns {module:math.XYObject}
|
|
*/
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|
function rotatePoint (point, angle, origin) { // eslint-disable-line no-shadow
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|
if (!origin) {
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|
origin = { x: 0, y: 0 };
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|
}
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|
const x = point.x - origin.x;
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|
const y = point.y - origin.y;
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|
const theta = radians(angle);
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return {
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|
x: x * Math.cos(theta) + y * Math.sin(theta) + origin.x,
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|
y: x * Math.sin(theta) + y * Math.cos(theta) + origin.y
|
|
};
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|
}
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|
/**
|
|
*
|
|
* @param {module:utilities.BBoxObject} rect
|
|
* @param {Float} angle
|
|
* @param {module:math.XYObject} origin
|
|
* @returns {module:utilities.BBoxObject}
|
|
*/
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|
function rotateRect (rect, angle, origin) { // eslint-disable-line no-shadow
|
|
const tl = rotatePoint({ x: rect.x, y: rect.y }, angle, origin);
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|
const tr = rotatePoint({ x: rect.x + rect.width, y: rect.y }, angle, origin);
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|
const br = rotatePoint({ x: rect.x + rect.width, y: rect.y + rect.height }, angle, origin);
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|
const bl = rotatePoint({ x: rect.x, y: rect.y + rect.height }, angle, origin);
|
|
|
|
const minx = Math.min(tl.x, tr.x, bl.x, br.x);
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|
const maxx = Math.max(tl.x, tr.x, bl.x, br.x);
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|
const miny = Math.min(tl.y, tr.y, bl.y, br.y);
|
|
const maxy = Math.max(tl.y, tr.y, bl.y, br.y);
|
|
|
|
return {
|
|
x: minx,
|
|
y: miny,
|
|
width: (maxx - minx),
|
|
height: (maxy - miny)
|
|
};
|
|
}
|
|
});
|