1256 lines
38 KiB
JavaScript
1256 lines
38 KiB
JavaScript
/* globals jQuery */
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/**
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* Path functionality.
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* @module path
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* @license MIT
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*
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* @copyright 2011 Alexis Deveria, 2011 Jeff Schiller
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*/
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import {NS} from '../common/namespaces.js';
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import {shortFloat} from '../common/units.js';
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import {getTransformList} from '../common/svgtransformlist.js';
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import {ChangeElementCommand, BatchCommand} from './history.js';
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import {
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transformPoint, snapToAngle, rectsIntersect,
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transformListToTransform
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} from '../common/math.js';
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import {
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assignAttributes, getElem, getRotationAngle, snapToGrid, isNullish,
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getBBox as utilsGetBBox
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} from '../common/utilities.js';
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import {
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isWebkit
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} from '../common/browser.js';
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const $ = jQuery;
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let pathActionsContext_ = null;
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let editorContext_ = null;
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let path = null;
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/**
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* @function module:path-actions.init
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* @param {module:path-actions.pathActionsContext_} pathActionsContext
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* @returns {void}
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*/
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export const init = function (pathActionsContext) {
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pathActionsContext_ = pathActionsContext;
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// editorContext_ = pathActionsContext_.getEditorContext();
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// path = pathActionsContext_.getPathObj();
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};
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/**
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* Convert a path to one with only absolute or relative values.
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* @todo move to pathActions.js
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* @function module:path.convertPath
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* @param {SVGPathElement} pth - the path to convert
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* @param {boolean} toRel - true of convert to relative
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* @returns {string}
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*/
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export const convertPath = function (pth, toRel) {
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const {pathSegList} = pth;
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const len = pathSegList.numberOfItems;
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let curx = 0, cury = 0;
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let d = '';
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let lastM = null;
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for (let i = 0; i < len; ++i) {
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const seg = pathSegList.getItem(i);
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// if these properties are not in the segment, set them to zero
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let x = seg.x || 0,
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y = seg.y || 0,
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x1 = seg.x1 || 0,
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y1 = seg.y1 || 0,
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x2 = seg.x2 || 0,
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y2 = seg.y2 || 0;
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const type = seg.pathSegType;
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const pathMap = pathActionsContext_.getPathMap();
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let letter = pathMap[type][toRel ? 'toLowerCase' : 'toUpperCase']();
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switch (type) {
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case 1: // z,Z closepath (Z/z)
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d += 'z';
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if (lastM && !toRel) {
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curx = lastM[0];
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cury = lastM[1];
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}
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break;
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case 12: // absolute horizontal line (H)
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x -= curx;
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// Fallthrough
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case 13: // relative horizontal line (h)
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if (toRel) {
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y = 0;
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curx += x;
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letter = 'l';
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} else {
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y = cury;
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x += curx;
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curx = x;
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letter = 'L';
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}
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// Convert to "line" for easier editing
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d += pathDSegment(letter, [[x, y]]);
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break;
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case 14: // absolute vertical line (V)
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y -= cury;
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// Fallthrough
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case 15: // relative vertical line (v)
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if (toRel) {
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x = 0;
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cury += y;
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letter = 'l';
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} else {
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x = curx;
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y += cury;
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cury = y;
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letter = 'L';
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}
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// Convert to "line" for easier editing
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d += pathDSegment(letter, [[x, y]]);
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break;
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case 2: // absolute move (M)
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case 4: // absolute line (L)
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case 18: // absolute smooth quad (T)
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x -= curx;
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y -= cury;
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// Fallthrough
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case 5: // relative line (l)
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case 3: // relative move (m)
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case 19: // relative smooth quad (t)
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if (toRel) {
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curx += x;
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cury += y;
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} else {
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x += curx;
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y += cury;
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curx = x;
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cury = y;
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}
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if (type === 2 || type === 3) { lastM = [curx, cury]; }
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d += pathDSegment(letter, [[x, y]]);
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break;
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case 6: // absolute cubic (C)
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x -= curx; x1 -= curx; x2 -= curx;
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y -= cury; y1 -= cury; y2 -= cury;
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// Fallthrough
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case 7: // relative cubic (c)
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if (toRel) {
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curx += x;
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cury += y;
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} else {
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x += curx; x1 += curx; x2 += curx;
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y += cury; y1 += cury; y2 += cury;
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curx = x;
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cury = y;
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}
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d += pathDSegment(letter, [[x1, y1], [x2, y2], [x, y]]);
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break;
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case 8: // absolute quad (Q)
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x -= curx; x1 -= curx;
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y -= cury; y1 -= cury;
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// Fallthrough
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case 9: // relative quad (q)
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if (toRel) {
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curx += x;
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cury += y;
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} else {
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x += curx; x1 += curx;
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y += cury; y1 += cury;
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curx = x;
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cury = y;
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}
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d += pathDSegment(letter, [[x1, y1], [x, y]]);
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break;
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case 10: // absolute elliptical arc (A)
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x -= curx;
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y -= cury;
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// Fallthrough
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case 11: // relative elliptical arc (a)
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if (toRel) {
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curx += x;
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cury += y;
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} else {
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x += curx;
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y += cury;
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curx = x;
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cury = y;
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}
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d += pathDSegment(letter, [[seg.r1, seg.r2]], [
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seg.angle,
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(seg.largeArcFlag ? 1 : 0),
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(seg.sweepFlag ? 1 : 0)
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], [x, y]);
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break;
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case 16: // absolute smooth cubic (S)
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x -= curx; x2 -= curx;
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y -= cury; y2 -= cury;
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// Fallthrough
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case 17: // relative smooth cubic (s)
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if (toRel) {
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curx += x;
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cury += y;
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} else {
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x += curx; x2 += curx;
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y += cury; y2 += cury;
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curx = x;
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cury = y;
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}
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d += pathDSegment(letter, [[x2, y2], [x, y]]);
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break;
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} // switch on path segment type
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} // for each segment
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return d;
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};
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/**
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* TODO: refactor callers in `convertPath` to use `getPathDFromSegments` instead of this function.
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* Legacy code refactored from `svgcanvas.pathActions.convertPath`.
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* @param {string} letter - path segment command (letter in potentially either case from {@link module:path.pathMap}; see [SVGPathSeg#pathSegTypeAsLetter]{@link https://www.w3.org/TR/SVG/single-page.html#paths-__svg__SVGPathSeg__pathSegTypeAsLetter})
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* @param {GenericArray<GenericArray<Integer>>} points - x,y points
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* @param {GenericArray<GenericArray<Integer>>} [morePoints] - x,y points
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* @param {Integer[]} [lastPoint] - x,y point
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* @returns {string}
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*/
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function pathDSegment (letter, points, morePoints, lastPoint) {
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$.each(points, function (i, pnt) {
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points[i] = shortFloat(pnt);
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});
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let segment = letter + points.join(' ');
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if (morePoints) {
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segment += ' ' + morePoints.join(' ');
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}
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if (lastPoint) {
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segment += ' ' + shortFloat(lastPoint);
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}
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return segment;
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}
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/* eslint-disable jsdoc/require-property */
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/**
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* Group: Path edit functions.
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* Functions relating to editing path elements.
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* @namespace {PlainObject} pathActions
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* @memberof module:path
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*/
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export const pathActionsMethod = (function () {
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/* eslint-enable jsdoc/require-property */
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let subpath = false;
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let newPoint, firstCtrl;
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let currentPath = null;
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let hasMoved = false;
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// No `editorContext_` yet but should be ok as is `null` by default
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// editorContext_.setDrawnPath(null);
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/**
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* This function converts a polyline (created by the fh_path tool) into
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* a path element and coverts every three line segments into a single bezier
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* curve in an attempt to smooth out the free-hand.
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* @function smoothPolylineIntoPath
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* @param {Element} element
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* @returns {Element}
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*/
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const smoothPolylineIntoPath = function (element) {
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let i;
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const {points} = element;
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const N = points.numberOfItems;
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if (N >= 4) {
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// loop through every 3 points and convert to a cubic bezier curve segment
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//
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// NOTE: this is cheating, it means that every 3 points has the potential to
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// be a corner instead of treating each point in an equal manner. In general,
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// this technique does not look that good.
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//
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// I am open to better ideas!
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//
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// Reading:
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// - http://www.efg2.com/Lab/Graphics/Jean-YvesQueinecBezierCurves.htm
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// - https://www.codeproject.com/KB/graphics/BezierSpline.aspx?msg=2956963
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// - https://www.ian-ko.com/ET_GeoWizards/UserGuide/smooth.htm
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// - https://www.cs.mtu.edu/~shene/COURSES/cs3621/NOTES/spline/Bezier/bezier-der.html
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let curpos = points.getItem(0), prevCtlPt = null;
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let d = [];
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d.push(['M', curpos.x, ',', curpos.y, ' C'].join(''));
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for (i = 1; i <= (N - 4); i += 3) {
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let ct1 = points.getItem(i);
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const ct2 = points.getItem(i + 1);
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const end = points.getItem(i + 2);
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// if the previous segment had a control point, we want to smooth out
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// the control points on both sides
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if (prevCtlPt) {
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const newpts = pathActionsContext_.smoothControlPoints(prevCtlPt, ct1, curpos);
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if (newpts && newpts.length === 2) {
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const prevArr = d[d.length - 1].split(',');
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prevArr[2] = newpts[0].x;
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prevArr[3] = newpts[0].y;
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d[d.length - 1] = prevArr.join(',');
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ct1 = newpts[1];
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}
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}
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d.push([ct1.x, ct1.y, ct2.x, ct2.y, end.x, end.y].join(','));
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curpos = end;
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prevCtlPt = ct2;
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}
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// handle remaining line segments
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d.push('L');
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while (i < N) {
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const pt = points.getItem(i);
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d.push([pt.x, pt.y].join(','));
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i++;
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}
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d = d.join(' ');
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// create new path element
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editorContext_ = pathActionsContext_.getEditorContext();
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element = editorContext_.addSVGElementFromJson({
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element: 'path',
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curStyles: true,
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attr: {
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id: editorContext_.getId(),
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d,
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fill: 'none'
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}
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});
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// No need to call "changed", as this is already done under mouseUp
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}
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return element;
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};
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// console.log(pathActionsContext_);
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// const convertPath = pathActionsContext_.getConvertPath();
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return (/** @lends module:path.pathActions */ {
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/**
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* @param {MouseEvent} evt
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* @param {Element} mouseTarget
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* @param {Float} startX
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* @param {Float} startY
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* @returns {boolean|void}
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*/
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mouseDown (evt, mouseTarget, startX, startY) {
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let id;
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editorContext_ = pathActionsContext_.getEditorContext();
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if (editorContext_.getCurrentMode() === 'path') {
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let mouseX = startX; // Was this meant to work with the other `mouseX`? (was defined globally so adding `let` to at least avoid a global)
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let mouseY = startY; // Was this meant to work with the other `mouseY`? (was defined globally so adding `let` to at least avoid a global)
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const currentZoom = editorContext_.getCurrentZoom();
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let x = mouseX / currentZoom,
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y = mouseY / currentZoom,
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stretchy = getElem('path_stretch_line');
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newPoint = [x, y];
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if (editorContext_.getGridSnapping()) {
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x = snapToGrid(x);
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y = snapToGrid(y);
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mouseX = snapToGrid(mouseX);
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mouseY = snapToGrid(mouseY);
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}
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if (!stretchy) {
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stretchy = document.createElementNS(NS.SVG, 'path');
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assignAttributes(stretchy, {
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id: 'path_stretch_line',
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stroke: '#22C',
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'stroke-width': '0.5',
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fill: 'none'
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});
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stretchy = getElem('selectorParentGroup').appendChild(stretchy);
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}
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stretchy.setAttribute('display', 'inline');
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let keep = null;
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let index;
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// if pts array is empty, create path element with M at current point
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const drawnPath = editorContext_.getDrawnPath();
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if (!drawnPath) {
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const dAttr = 'M' + x + ',' + y + ' '; // Was this meant to work with the other `dAttr`? (was defined globally so adding `var` to at least avoid a global)
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/* drawnPath = */ editorContext_.setDrawnPath(editorContext_.addSVGElementFromJson({
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element: 'path',
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curStyles: true,
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attr: {
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d: dAttr,
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id: editorContext_.getNextId(),
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opacity: editorContext_.getOpacity() / 2
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}
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}));
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// set stretchy line to first point
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stretchy.setAttribute('d', ['M', mouseX, mouseY, mouseX, mouseY].join(' '));
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index = subpath ? path.segs.length : 0;
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pathActionsContext_.addPointGrip(index, mouseX, mouseY);
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} else {
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// determine if we clicked on an existing point
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const seglist = drawnPath.pathSegList;
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let i = seglist.numberOfItems;
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const FUZZ = 6 / currentZoom;
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let clickOnPoint = false;
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while (i) {
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i--;
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const item = seglist.getItem(i);
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const px = item.x, py = item.y;
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// found a matching point
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if (x >= (px - FUZZ) && x <= (px + FUZZ) &&
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y >= (py - FUZZ) && y <= (py + FUZZ)
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) {
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clickOnPoint = true;
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break;
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}
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}
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// get path element that we are in the process of creating
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id = editorContext_.getId();
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// Remove previous path object if previously created
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pathActionsContext_.removePath_(id);
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const newpath = getElem(id);
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let newseg;
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let sSeg;
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const len = seglist.numberOfItems;
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// if we clicked on an existing point, then we are done this path, commit it
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// (i, i+1) are the x,y that were clicked on
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if (clickOnPoint) {
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// if clicked on any other point but the first OR
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// the first point was clicked on and there are less than 3 points
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// then leave the path open
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// otherwise, close the path
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if (i <= 1 && len >= 2) {
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// Create end segment
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const absX = seglist.getItem(0).x;
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const absY = seglist.getItem(0).y;
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sSeg = stretchy.pathSegList.getItem(1);
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newseg = sSeg.pathSegType === 4
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? drawnPath.createSVGPathSegLinetoAbs(absX, absY)
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: drawnPath.createSVGPathSegCurvetoCubicAbs(absX, absY, sSeg.x1 / currentZoom, sSeg.y1 / currentZoom, absX, absY);
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const endseg = drawnPath.createSVGPathSegClosePath();
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seglist.appendItem(newseg);
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seglist.appendItem(endseg);
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} else if (len < 3) {
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keep = false;
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return keep;
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}
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$(stretchy).remove();
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// This will signal to commit the path
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// const element = newpath; // Other event handlers define own `element`, so this was probably not meant to interact with them or one which shares state (as there were none); I therefore adding a missing `var` to avoid a global
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/* drawnPath = */ editorContext_.setDrawnPath(null);
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editorContext_.setStarted(false);
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if (subpath) {
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if (path.matrix) {
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editorContext_.remapElement(newpath, {}, path.matrix.inverse());
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}
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const newD = newpath.getAttribute('d');
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const origD = $(path.elem).attr('d');
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$(path.elem).attr('d', origD + newD);
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$(newpath).remove();
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if (path.matrix) {
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pathActionsContext_.recalcRotatedPath();
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}
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init();
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pathActionsMethod.toEditMode(path.elem);
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path.selectPt();
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return false;
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}
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// else, create a new point, update path element
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} else {
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// Checks if current target or parents are #svgcontent
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if (!$.contains(
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editorContext_.getContainer(),
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editorContext_.getMouseTarget(evt)
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)) {
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// Clicked outside canvas, so don't make point
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// console.log('Clicked outside canvas');
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return false;
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}
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const num = drawnPath.pathSegList.numberOfItems;
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const last = drawnPath.pathSegList.getItem(num - 1);
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const lastx = last.x, lasty = last.y;
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if (evt.shiftKey) {
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const xya = snapToAngle(lastx, lasty, x, y);
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({x, y} = xya);
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}
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// Use the segment defined by stretchy
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sSeg = stretchy.pathSegList.getItem(1);
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newseg = sSeg.pathSegType === 4
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? drawnPath.createSVGPathSegLinetoAbs(editorContext_.round(x), editorContext_.round(y))
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: drawnPath.createSVGPathSegCurvetoCubicAbs(
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editorContext_.round(x),
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editorContext_.round(y),
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sSeg.x1 / currentZoom,
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sSeg.y1 / currentZoom,
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sSeg.x2 / currentZoom,
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sSeg.y2 / currentZoom
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);
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drawnPath.pathSegList.appendItem(newseg);
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x *= currentZoom;
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y *= currentZoom;
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// set stretchy line to latest point
|
|
stretchy.setAttribute('d', ['M', x, y, x, y].join(' '));
|
|
index = num;
|
|
if (subpath) { index += path.segs.length; }
|
|
pathActionsContext_.addPointGrip(index, x, y);
|
|
}
|
|
// keep = true;
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
|
|
// TODO: Make sure currentPath isn't null at this point
|
|
if (!path) { return undefined; }
|
|
|
|
path.storeD();
|
|
|
|
({id} = evt.target);
|
|
let curPt;
|
|
if (id.substr(0, 14) === 'pathpointgrip_') {
|
|
// Select this point
|
|
curPt = path.cur_pt = Number.parseInt(id.substr(14));
|
|
path.dragging = [startX, startY];
|
|
const seg = path.segs[curPt];
|
|
|
|
// only clear selection if shift is not pressed (otherwise, add
|
|
// node to selection)
|
|
if (!evt.shiftKey) {
|
|
if (path.selected_pts.length <= 1 || !seg.selected) {
|
|
path.clearSelection();
|
|
}
|
|
path.addPtsToSelection(curPt);
|
|
} else if (seg.selected) {
|
|
path.removePtFromSelection(curPt);
|
|
} else {
|
|
path.addPtsToSelection(curPt);
|
|
}
|
|
} else if (id.startsWith('ctrlpointgrip_')) {
|
|
path.dragging = [startX, startY];
|
|
|
|
const parts = id.split('_')[1].split('c');
|
|
curPt = Number(parts[0]);
|
|
const ctrlNum = Number(parts[1]);
|
|
path.selectPt(curPt, ctrlNum);
|
|
}
|
|
|
|
// Start selection box
|
|
if (!path.dragging) {
|
|
let rubberBox = editorContext_.getRubberBox();
|
|
if (isNullish(rubberBox)) {
|
|
rubberBox = editorContext_.setRubberBox(
|
|
editorContext_.selectorManager.getRubberBandBox()
|
|
);
|
|
}
|
|
const currentZoom = editorContext_.getCurrentZoom();
|
|
assignAttributes(rubberBox, {
|
|
x: startX * currentZoom,
|
|
y: startY * currentZoom,
|
|
width: 0,
|
|
height: 0,
|
|
display: 'inline'
|
|
}, 100);
|
|
}
|
|
return undefined;
|
|
},
|
|
/**
|
|
* @param {Float} mouseX
|
|
* @param {Float} mouseY
|
|
* @returns {void}
|
|
*/
|
|
mouseMove (mouseX, mouseY) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
const currentZoom = editorContext_.getCurrentZoom();
|
|
hasMoved = true;
|
|
const drawnPath = editorContext_.getDrawnPath();
|
|
if (editorContext_.getCurrentMode() === 'path') {
|
|
if (!drawnPath) { return; }
|
|
const seglist = drawnPath.pathSegList;
|
|
const index = seglist.numberOfItems - 1;
|
|
|
|
if (newPoint) {
|
|
// First point
|
|
// if (!index) { return; }
|
|
|
|
// Set control points
|
|
const pointGrip1 = pathActionsContext_.addCtrlGrip('1c1');
|
|
const pointGrip2 = pathActionsContext_.addCtrlGrip('0c2');
|
|
|
|
// dragging pointGrip1
|
|
pointGrip1.setAttribute('cx', mouseX);
|
|
pointGrip1.setAttribute('cy', mouseY);
|
|
pointGrip1.setAttribute('display', 'inline');
|
|
|
|
const ptX = newPoint[0];
|
|
const ptY = newPoint[1];
|
|
|
|
// set curve
|
|
// const seg = seglist.getItem(index);
|
|
const curX = mouseX / currentZoom;
|
|
const curY = mouseY / currentZoom;
|
|
const altX = (ptX + (ptX - curX));
|
|
const altY = (ptY + (ptY - curY));
|
|
|
|
pointGrip2.setAttribute('cx', altX * currentZoom);
|
|
pointGrip2.setAttribute('cy', altY * currentZoom);
|
|
pointGrip2.setAttribute('display', 'inline');
|
|
|
|
const ctrlLine = pathActionsContext_.getCtrlLine(1);
|
|
assignAttributes(ctrlLine, {
|
|
x1: mouseX,
|
|
y1: mouseY,
|
|
x2: altX * currentZoom,
|
|
y2: altY * currentZoom,
|
|
display: 'inline'
|
|
});
|
|
|
|
if (index === 0) {
|
|
firstCtrl = [mouseX, mouseY];
|
|
} else {
|
|
const last = seglist.getItem(index - 1);
|
|
let lastX = last.x;
|
|
let lastY = last.y;
|
|
|
|
if (last.pathSegType === 6) {
|
|
lastX += (lastX - last.x2);
|
|
lastY += (lastY - last.y2);
|
|
} else if (firstCtrl) {
|
|
lastX = firstCtrl[0] / currentZoom;
|
|
lastY = firstCtrl[1] / currentZoom;
|
|
}
|
|
pathActionsContext_.replacePathSeg(6, index, [ptX, ptY, lastX, lastY, altX, altY], drawnPath);
|
|
}
|
|
} else {
|
|
const stretchy = getElem('path_stretch_line');
|
|
if (stretchy) {
|
|
const prev = seglist.getItem(index);
|
|
if (prev.pathSegType === 6) {
|
|
const prevX = prev.x + (prev.x - prev.x2);
|
|
const prevY = prev.y + (prev.y - prev.y2);
|
|
pathActionsContext_.replacePathSeg(
|
|
6,
|
|
1,
|
|
[mouseX, mouseY, prevX * currentZoom, prevY * currentZoom, mouseX, mouseY],
|
|
stretchy
|
|
);
|
|
} else if (firstCtrl) {
|
|
pathActionsContext_.replacePathSeg(6, 1, [mouseX, mouseY, firstCtrl[0], firstCtrl[1], mouseX, mouseY], stretchy);
|
|
} else {
|
|
pathActionsContext_.replacePathSeg(4, 1, [mouseX, mouseY], stretchy);
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
// if we are dragging a point, let's move it
|
|
if (path.dragging) {
|
|
const pt = pathActionsContext_.getPointFromGrip({
|
|
x: path.dragging[0],
|
|
y: path.dragging[1]
|
|
}, path);
|
|
const mpt = pathActionsContext_.getPointFromGrip({
|
|
x: mouseX,
|
|
y: mouseY
|
|
}, path);
|
|
const diffX = mpt.x - pt.x;
|
|
const diffY = mpt.y - pt.y;
|
|
path.dragging = [mouseX, mouseY];
|
|
|
|
if (path.dragctrl) {
|
|
path.moveCtrl(diffX, diffY);
|
|
} else {
|
|
path.movePts(diffX, diffY);
|
|
}
|
|
} else {
|
|
path.selected_pts = [];
|
|
path.eachSeg(function (i) {
|
|
const seg = this;
|
|
if (!seg.next && !seg.prev) { return; }
|
|
|
|
// const {item} = seg;
|
|
const rubberBox = editorContext_.getRubberBox();
|
|
const rbb = rubberBox.getBBox();
|
|
|
|
const pt = pathActionsContext_.getGripPt(seg);
|
|
const ptBb = {
|
|
x: pt.x,
|
|
y: pt.y,
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
|
|
const sel = rectsIntersect(rbb, ptBb);
|
|
|
|
this.select(sel);
|
|
// Note that addPtsToSelection is not being run
|
|
if (sel) { path.selected_pts.push(seg.index); }
|
|
});
|
|
}
|
|
},
|
|
/**
|
|
* @typedef module:path.keepElement
|
|
* @type {PlainObject}
|
|
* @property {boolean} keep
|
|
* @property {Element} element
|
|
*/
|
|
/**
|
|
* @param {Event} evt
|
|
* @param {Element} element
|
|
* @param {Float} mouseX
|
|
* @param {Float} mouseY
|
|
* @returns {module:path.keepElement|void}
|
|
*/
|
|
mouseUp (evt, element, mouseX, mouseY) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
const drawnPath = editorContext_.getDrawnPath();
|
|
// Create mode
|
|
if (editorContext_.getCurrentMode() === 'path') {
|
|
newPoint = null;
|
|
if (!drawnPath) {
|
|
element = getElem(editorContext_.getId());
|
|
editorContext_.setStarted(false);
|
|
firstCtrl = null;
|
|
}
|
|
|
|
return {
|
|
keep: true,
|
|
element
|
|
};
|
|
}
|
|
|
|
// Edit mode
|
|
const rubberBox = editorContext_.getRubberBox();
|
|
if (path.dragging) {
|
|
const lastPt = path.cur_pt;
|
|
|
|
path.dragging = false;
|
|
path.dragctrl = false;
|
|
path.update();
|
|
|
|
if (hasMoved) {
|
|
path.endChanges('Move path point(s)');
|
|
}
|
|
|
|
if (!evt.shiftKey && !hasMoved) {
|
|
path.selectPt(lastPt);
|
|
}
|
|
} else if (rubberBox && rubberBox.getAttribute('display') !== 'none') {
|
|
// Done with multi-node-select
|
|
rubberBox.setAttribute('display', 'none');
|
|
|
|
if (rubberBox.getAttribute('width') <= 2 && rubberBox.getAttribute('height') <= 2) {
|
|
pathActionsMethod.toSelectMode(evt.target);
|
|
}
|
|
|
|
// else, move back to select mode
|
|
} else {
|
|
pathActionsMethod.toSelectMode(evt.target);
|
|
}
|
|
hasMoved = false;
|
|
return undefined;
|
|
},
|
|
/**
|
|
* @param {Element} element
|
|
* @returns {void}
|
|
*/
|
|
toEditMode (element) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
path = pathActionsContext_.getPath_(element);
|
|
editorContext_.setCurrentMode('pathedit');
|
|
editorContext_.clearSelection();
|
|
path.show(true).update();
|
|
path.oldbbox = utilsGetBBox(path.elem);
|
|
subpath = false;
|
|
},
|
|
/**
|
|
* @param {Element} elem
|
|
* @fires module:svgcanvas.SvgCanvas#event:selected
|
|
* @returns {void}
|
|
*/
|
|
toSelectMode (elem) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
const selPath = (elem === path.elem);
|
|
editorContext_.setCurrentMode('select');
|
|
path.show(false);
|
|
currentPath = false;
|
|
editorContext_.clearSelection();
|
|
|
|
if (path.matrix) {
|
|
// Rotated, so may need to re-calculate the center
|
|
pathActionsContext_.recalcRotatedPath();
|
|
}
|
|
|
|
if (selPath) {
|
|
editorContext_.call('selected', [elem]);
|
|
editorContext_.addToSelection([elem], true);
|
|
}
|
|
},
|
|
/**
|
|
* @param {boolean} on
|
|
* @returns {void}
|
|
*/
|
|
addSubPath (on) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
if (on) {
|
|
// Internally we go into "path" mode, but in the UI it will
|
|
// still appear as if in "pathedit" mode.
|
|
editorContext_.setCurrentMode('path');
|
|
subpath = true;
|
|
} else {
|
|
pathActionsMethod.clear(true);
|
|
pathActionsMethod.toEditMode(path.elem);
|
|
}
|
|
},
|
|
/**
|
|
* @param {Element} target
|
|
* @returns {void}
|
|
*/
|
|
select (target) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
if (currentPath === target) {
|
|
pathActionsMethod.toEditMode(target);
|
|
editorContext_.setCurrentMode('pathedit');
|
|
// going into pathedit mode
|
|
} else {
|
|
currentPath = target;
|
|
}
|
|
},
|
|
/**
|
|
* @fires module:svgcanvas.SvgCanvas#event:changed
|
|
* @returns {void}
|
|
*/
|
|
reorient () {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
const elem = editorContext_.getSelectedElements()[0];
|
|
if (!elem) { return; }
|
|
const angl = getRotationAngle(elem);
|
|
if (angl === 0) { return; }
|
|
|
|
const batchCmd = new BatchCommand('Reorient path');
|
|
const changes = {
|
|
d: elem.getAttribute('d'),
|
|
transform: elem.getAttribute('transform')
|
|
};
|
|
batchCmd.addSubCommand(new ChangeElementCommand(elem, changes));
|
|
editorContext_.clearSelection();
|
|
this.resetOrientation(elem);
|
|
|
|
editorContext_.addCommandToHistory(batchCmd);
|
|
|
|
// Set matrix to null
|
|
pathActionsContext_.getPath_(elem).show(false).matrix = null;
|
|
|
|
this.clear();
|
|
|
|
editorContext_.addToSelection([elem], true);
|
|
editorContext_.call('changed', editorContext_.getSelectedElements());
|
|
},
|
|
|
|
/**
|
|
* @param {boolean} remove Not in use
|
|
* @returns {void}
|
|
*/
|
|
clear (remove) {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
const drawnPath = editorContext_.getDrawnPath();
|
|
currentPath = null;
|
|
if (drawnPath) {
|
|
const elem = getElem(editorContext_.getId());
|
|
$(getElem('path_stretch_line')).remove();
|
|
$(elem).remove();
|
|
$(getElem('pathpointgrip_container')).find('*').attr('display', 'none');
|
|
firstCtrl = null;
|
|
editorContext_.setDrawnPath(null);
|
|
editorContext_.setStarted(false);
|
|
} else if (editorContext_.getCurrentMode() === 'pathedit') {
|
|
this.toSelectMode();
|
|
}
|
|
if (path) { path.init().show(false); }
|
|
},
|
|
/**
|
|
* @param {?(Element|SVGPathElement)} pth
|
|
* @returns {false|void}
|
|
*/
|
|
resetOrientation (pth) {
|
|
if (isNullish(pth) || pth.nodeName !== 'path') { return false; }
|
|
const tlist = getTransformList(pth);
|
|
const m = transformListToTransform(tlist).matrix;
|
|
tlist.clear();
|
|
pth.removeAttribute('transform');
|
|
const segList = pth.pathSegList;
|
|
|
|
// Opera/win/non-EN throws an error here.
|
|
// TODO: Find out why!
|
|
// Presumed fixed in Opera 10.5, so commented out for now
|
|
|
|
// try {
|
|
const len = segList.numberOfItems;
|
|
// } catch(err) {
|
|
// const fixed_d = pathActions.convertPath(pth);
|
|
// pth.setAttribute('d', fixed_d);
|
|
// segList = pth.pathSegList;
|
|
// const len = segList.numberOfItems;
|
|
// }
|
|
// let lastX, lastY;
|
|
for (let i = 0; i < len; ++i) {
|
|
const seg = segList.getItem(i);
|
|
const type = seg.pathSegType;
|
|
if (type === 1) { continue; }
|
|
const pts = [];
|
|
$.each(['', 1, 2], function (j, n) {
|
|
const x = seg['x' + n], y = seg['y' + n];
|
|
if (x !== undefined && y !== undefined) {
|
|
const pt = transformPoint(x, y, m);
|
|
pts.splice(pts.length, 0, pt.x, pt.y);
|
|
}
|
|
});
|
|
pathActionsContext_.replacePathSeg(type, i, pts, pth);
|
|
}
|
|
|
|
pathActionsContext_.reorientGrads(pth, m);
|
|
return undefined;
|
|
},
|
|
/**
|
|
* @returns {void}
|
|
*/
|
|
zoomChange () {
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
if (editorContext_.getCurrentMode() === 'pathedit') {
|
|
path.update();
|
|
}
|
|
},
|
|
/**
|
|
* @typedef {PlainObject} module:path.NodePoint
|
|
* @property {Float} x
|
|
* @property {Float} y
|
|
* @property {Integer} type
|
|
*/
|
|
/**
|
|
* @returns {module:path.NodePoint}
|
|
*/
|
|
getNodePoint () {
|
|
const selPt = path.selected_pts.length ? path.selected_pts[0] : 1;
|
|
|
|
const seg = path.segs[selPt];
|
|
return {
|
|
x: seg.item.x,
|
|
y: seg.item.y,
|
|
type: seg.type
|
|
};
|
|
},
|
|
/**
|
|
* @param {boolean} linkPoints
|
|
* @returns {void}
|
|
*/
|
|
linkControlPoints (linkPoints) {
|
|
pathActionsContext_.setLinkControlPoints(linkPoints);
|
|
},
|
|
/**
|
|
* @returns {void}
|
|
*/
|
|
clonePathNode () {
|
|
path.storeD();
|
|
|
|
const selPts = path.selected_pts;
|
|
// const {segs} = path;
|
|
|
|
let i = selPts.length;
|
|
const nums = [];
|
|
|
|
while (i--) {
|
|
const pt = selPts[i];
|
|
path.addSeg(pt);
|
|
|
|
nums.push(pt + i);
|
|
nums.push(pt + i + 1);
|
|
}
|
|
path.init().addPtsToSelection(nums);
|
|
|
|
path.endChanges('Clone path node(s)');
|
|
},
|
|
/**
|
|
* @returns {void}
|
|
*/
|
|
opencloseSubPath () {
|
|
const selPts = path.selected_pts;
|
|
// Only allow one selected node for now
|
|
if (selPts.length !== 1) { return; }
|
|
|
|
const {elem} = path;
|
|
const list = elem.pathSegList;
|
|
|
|
// const len = list.numberOfItems;
|
|
|
|
const index = selPts[0];
|
|
|
|
let openPt = null;
|
|
let startItem = null;
|
|
|
|
// Check if subpath is already open
|
|
path.eachSeg(function (i) {
|
|
if (this.type === 2 && i <= index) {
|
|
startItem = this.item;
|
|
}
|
|
if (i <= index) { return true; }
|
|
if (this.type === 2) {
|
|
// Found M first, so open
|
|
openPt = i;
|
|
return false;
|
|
}
|
|
if (this.type === 1) {
|
|
// Found Z first, so closed
|
|
openPt = false;
|
|
return false;
|
|
}
|
|
return true;
|
|
});
|
|
|
|
if (isNullish(openPt)) {
|
|
// Single path, so close last seg
|
|
openPt = path.segs.length - 1;
|
|
}
|
|
|
|
if (openPt !== false) {
|
|
// Close this path
|
|
|
|
// Create a line going to the previous "M"
|
|
const newseg = elem.createSVGPathSegLinetoAbs(startItem.x, startItem.y);
|
|
|
|
const closer = elem.createSVGPathSegClosePath();
|
|
if (openPt === path.segs.length - 1) {
|
|
list.appendItem(newseg);
|
|
list.appendItem(closer);
|
|
} else {
|
|
pathActionsContext_.insertItemBefore(elem, closer, openPt);
|
|
pathActionsContext_.insertItemBefore(elem, newseg, openPt);
|
|
}
|
|
|
|
path.init().selectPt(openPt + 1);
|
|
return;
|
|
}
|
|
|
|
// M 1,1 L 2,2 L 3,3 L 1,1 z // open at 2,2
|
|
// M 2,2 L 3,3 L 1,1
|
|
|
|
// M 1,1 L 2,2 L 1,1 z M 4,4 L 5,5 L6,6 L 5,5 z
|
|
// M 1,1 L 2,2 L 1,1 z [M 4,4] L 5,5 L(M)6,6 L 5,5 z
|
|
|
|
const seg = path.segs[index];
|
|
|
|
if (seg.mate) {
|
|
list.removeItem(index); // Removes last "L"
|
|
list.removeItem(index); // Removes the "Z"
|
|
path.init().selectPt(index - 1);
|
|
return;
|
|
}
|
|
|
|
let lastM, zSeg;
|
|
|
|
// Find this sub-path's closing point and remove
|
|
for (let i = 0; i < list.numberOfItems; i++) {
|
|
const item = list.getItem(i);
|
|
|
|
if (item.pathSegType === 2) {
|
|
// Find the preceding M
|
|
lastM = i;
|
|
} else if (i === index) {
|
|
// Remove it
|
|
list.removeItem(lastM);
|
|
// index--;
|
|
} else if (item.pathSegType === 1 && index < i) {
|
|
// Remove the closing seg of this subpath
|
|
zSeg = i - 1;
|
|
list.removeItem(i);
|
|
break;
|
|
}
|
|
}
|
|
|
|
let num = (index - lastM) - 1;
|
|
|
|
while (num--) {
|
|
pathActionsContext_.insertItemBefore(elem, list.getItem(lastM), zSeg);
|
|
}
|
|
|
|
const pt = list.getItem(lastM);
|
|
|
|
// Make this point the new "M"
|
|
pathActionsContext_.replacePathSeg(2, lastM, [pt.x, pt.y]);
|
|
|
|
// i = index; // i is local here, so has no effect; what was the intent for this?
|
|
|
|
path.init().selectPt(0);
|
|
},
|
|
/**
|
|
* @returns {void}
|
|
*/
|
|
deletePathNode () {
|
|
if (!pathActionsMethod.canDeleteNodes) { return; }
|
|
path.storeD();
|
|
|
|
const selPts = path.selected_pts;
|
|
|
|
let i = selPts.length;
|
|
while (i--) {
|
|
const pt = selPts[i];
|
|
path.deleteSeg(pt);
|
|
}
|
|
|
|
// Cleanup
|
|
const cleanup = function () {
|
|
const segList = path.elem.pathSegList;
|
|
let len = segList.numberOfItems;
|
|
|
|
const remItems = function (pos, count) {
|
|
while (count--) {
|
|
segList.removeItem(pos);
|
|
}
|
|
};
|
|
|
|
if (len <= 1) { return true; }
|
|
|
|
while (len--) {
|
|
const item = segList.getItem(len);
|
|
if (item.pathSegType === 1) {
|
|
const prev = segList.getItem(len - 1);
|
|
const nprev = segList.getItem(len - 2);
|
|
if (prev.pathSegType === 2) {
|
|
remItems(len - 1, 2);
|
|
cleanup();
|
|
break;
|
|
} else if (nprev.pathSegType === 2) {
|
|
remItems(len - 2, 3);
|
|
cleanup();
|
|
break;
|
|
}
|
|
} else if (item.pathSegType === 2) {
|
|
if (len > 0) {
|
|
const prevType = segList.getItem(len - 1).pathSegType;
|
|
// Path has M M
|
|
if (prevType === 2) {
|
|
remItems(len - 1, 1);
|
|
cleanup();
|
|
break;
|
|
// Entire path ends with Z M
|
|
} else if (prevType === 1 && segList.numberOfItems - 1 === len) {
|
|
remItems(len, 1);
|
|
cleanup();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
cleanup();
|
|
|
|
// Completely delete a path with 1 or 0 segments
|
|
if (path.elem.pathSegList.numberOfItems <= 1) {
|
|
pathActionsMethod.toSelectMode(path.elem);
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
editorContext_.canvas.deleteSelectedElements();
|
|
return;
|
|
}
|
|
|
|
path.init();
|
|
path.clearSelection();
|
|
|
|
// TODO: Find right way to select point now
|
|
// path.selectPt(selPt);
|
|
if (window.opera) { // Opera repaints incorrectly
|
|
const cp = $(path.elem);
|
|
cp.attr('d', cp.attr('d'));
|
|
}
|
|
path.endChanges('Delete path node(s)');
|
|
},
|
|
/* eslint-disable jsdoc/require-returns */
|
|
// Can't seem to use `@borrows` here, so using `@see`
|
|
/**
|
|
* Smooth polyline into path.
|
|
* @function module:path.pathActions.smoothPolylineIntoPath
|
|
* @see module:path~smoothPolylineIntoPath
|
|
*/
|
|
smoothPolylineIntoPath,
|
|
/* eslint-enable jsdoc/require-returns */
|
|
/**
|
|
* @param {?Integer} v See {@link https://www.w3.org/TR/SVG/single-page.html#paths-InterfaceSVGPathSeg}
|
|
* @returns {void}
|
|
*/
|
|
setSegType (v) {
|
|
path.setSegType(v);
|
|
},
|
|
/**
|
|
* @param {string} attr
|
|
* @param {Float} newValue
|
|
* @returns {void}
|
|
*/
|
|
moveNode (attr, newValue) {
|
|
const selPts = path.selected_pts;
|
|
if (!selPts.length) { return; }
|
|
|
|
path.storeD();
|
|
|
|
// Get first selected point
|
|
const seg = path.segs[selPts[0]];
|
|
const diff = {x: 0, y: 0};
|
|
diff[attr] = newValue - seg.item[attr];
|
|
|
|
seg.move(diff.x, diff.y);
|
|
path.endChanges('Move path point');
|
|
},
|
|
/**
|
|
* @param {Element} elem
|
|
* @returns {void}
|
|
*/
|
|
fixEnd (elem) {
|
|
// Adds an extra segment if the last seg before a Z doesn't end
|
|
// at its M point
|
|
// M0,0 L0,100 L100,100 z
|
|
const segList = elem.pathSegList;
|
|
const len = segList.numberOfItems;
|
|
let lastM;
|
|
for (let i = 0; i < len; ++i) {
|
|
const item = segList.getItem(i);
|
|
if (item.pathSegType === 2) {
|
|
lastM = item;
|
|
}
|
|
|
|
if (item.pathSegType === 1) {
|
|
const prev = segList.getItem(i - 1);
|
|
if (prev.x !== lastM.x || prev.y !== lastM.y) {
|
|
// Add an L segment here
|
|
const newseg = elem.createSVGPathSegLinetoAbs(lastM.x, lastM.y);
|
|
pathActionsContext_.insertItemBefore(elem, newseg, i);
|
|
// Can this be done better?
|
|
pathActionsMethod.fixEnd(elem);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
editorContext_ = pathActionsContext_.getEditorContext();
|
|
if (isWebkit()) { editorContext_.resetD(elem); }
|
|
},
|
|
/* eslint-disable jsdoc/require-returns */
|
|
// Can't seem to use `@borrows` here, so using `@see`
|
|
/**
|
|
* Convert a path to one with only absolute or relative values.
|
|
* @function module:path.pathActions.convertPath
|
|
* @see module:path.convertPath
|
|
*/
|
|
convertPath
|
|
/* eslint-enable jsdoc/require-returns */
|
|
});
|
|
})();
|
|
// end pathActions
|