448 lines
16 KiB
JavaScript
448 lines
16 KiB
JavaScript
/**
|
|
* @file ext-polystar.js
|
|
*
|
|
*
|
|
* @copyright 2010 CloudCanvas, Inc. All rights reserved
|
|
* @copyright 2021 Optimistik SAS, Inc. All rights reserved
|
|
* @license MIT
|
|
*
|
|
*/
|
|
|
|
const name = 'polystar'
|
|
|
|
const loadExtensionTranslation = async function (svgEditor) {
|
|
let translationModule
|
|
const lang = svgEditor.configObj.pref('lang')
|
|
try {
|
|
translationModule = await import(`./locale/${lang}.js`)
|
|
} catch (_error) {
|
|
console.warn(`Missing translation (${lang}) for ${name} - using 'en'`)
|
|
translationModule = await import('./locale/en.js')
|
|
}
|
|
svgEditor.i18next.addResourceBundle(lang, name, translationModule.default)
|
|
}
|
|
|
|
export default {
|
|
name,
|
|
async init () {
|
|
const svgEditor = this
|
|
const { svgCanvas } = svgEditor
|
|
const { ChangeElementCommand } = svgCanvas.history
|
|
const addToHistory = (cmd) => { svgCanvas.undoMgr.addCommandToHistory(cmd) }
|
|
const { $id, $click } = svgCanvas
|
|
let selElems
|
|
let started
|
|
let newFO
|
|
await loadExtensionTranslation(svgEditor)
|
|
|
|
/**
|
|
* @param {boolean} on true=display
|
|
* @param {string} tool "star" or "polygone"
|
|
* @returns {void}
|
|
*/
|
|
const showPanel = (on, tool) => {
|
|
if (on) {
|
|
$id(`${tool}_panel`).style.removeProperty('display')
|
|
} else {
|
|
$id(`${tool}_panel`).style.display = 'none'
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} attr attribute to change
|
|
* @param {string|Float} val new value
|
|
* @returns {void}
|
|
*/
|
|
const setAttr = (attr, val) => {
|
|
svgCanvas.changeSelectedAttribute(attr, val)
|
|
svgCanvas.call('changed', selElems)
|
|
}
|
|
|
|
/**
|
|
* @param {Float} n angle
|
|
* @return {Float} cotangeante
|
|
*/
|
|
const cot = (n) => 1 / Math.tan(n)
|
|
|
|
/**
|
|
* @param {Float} n angle
|
|
* @returns {Float} sec
|
|
*/
|
|
const sec = (n) => 1 / Math.cos(n)
|
|
|
|
return {
|
|
name: svgEditor.i18next.t(`${name}:name`),
|
|
// The callback should be used to load the DOM with the appropriate UI items
|
|
callback () {
|
|
// Add the button and its handler(s)
|
|
// Note: the star extension needs to be loaded before the polygon extension
|
|
const fbtitle = `${name}:title`
|
|
const titleStar = `${name}:buttons.0.title`
|
|
const titlePolygon = `${name}:buttons.1.title`
|
|
const buttonTemplate = `
|
|
<se-flyingbutton id="tools_polygon" title="${fbtitle}">
|
|
<se-button id="tool_star" title="${titleStar}" src="star.svg">
|
|
</se-button>
|
|
<se-button id="tool_polygon" title="${titlePolygon}" src="polygon.svg">
|
|
</se-button>
|
|
</se-flyingbutton>
|
|
`
|
|
svgCanvas.insertChildAtIndex($id('tools_left'), buttonTemplate, 10)
|
|
// handler
|
|
$click($id('tool_star'), () => {
|
|
if (this.leftPanel.updateLeftPanel('tool_star')) {
|
|
svgCanvas.setMode('star')
|
|
showPanel(true, 'star')
|
|
showPanel(false, 'polygon')
|
|
}
|
|
})
|
|
$click($id('tool_polygon'), () => {
|
|
if (this.leftPanel.updateLeftPanel('tool_polygon')) {
|
|
svgCanvas.setMode('polygon')
|
|
showPanel(true, 'polygon')
|
|
showPanel(false, 'star')
|
|
}
|
|
})
|
|
const label0 = `${name}:contextTools.0.label`
|
|
const title0 = `${name}:contextTools.0.title`
|
|
const label1 = `${name}:contextTools.1.label`
|
|
const title1 = `${name}:contextTools.1.title`
|
|
const label2 = `${name}:contextTools.2.label`
|
|
const title2 = `${name}:contextTools.2.title`
|
|
const label3 = `${name}:contextTools.3.label`
|
|
const title3 = `${name}:contextTools.3.title`
|
|
// Add the context panel and its handler(s)
|
|
const panelTemplate = document.createElement('template')
|
|
panelTemplate.innerHTML = `
|
|
<div id="star_panel">
|
|
<se-spin-input id="starNumPoints" label="${label0}" min=1 step=1 value=5 title="${title0}">
|
|
</se-spin-input>
|
|
<se-spin-input id="RadiusMultiplier" label="${label1}" min=1 step=2.5 value=3 title="${title1}">
|
|
</se-spin-input>
|
|
<se-spin-input id="radialShift" min=0 step=1 value=0 label="${label2}" title="${title2}">
|
|
</se-spin-input>
|
|
</div>
|
|
<div id="polygon_panel">
|
|
<se-spin-input size="3" id="polySides" min=1 step=1 value=5 label="${label3}" title="${title3}">
|
|
</se-spin-input>
|
|
</div>
|
|
`
|
|
// add handlers for the panel
|
|
$id('tools_top').appendChild(panelTemplate.content.cloneNode(true))
|
|
// don't display the panels on start
|
|
showPanel(false, 'star')
|
|
showPanel(false, 'polygon')
|
|
$id('starNumPoints').addEventListener('change', (event) => {
|
|
setAttr('point', event.target.value)
|
|
const orient = 'point'
|
|
const point = event.target.value
|
|
let i = selElems.length
|
|
while (i--) {
|
|
const elem = selElems[i]
|
|
if (elem.hasAttribute('r')) {
|
|
const oldPoint = elem.getAttribute('point')
|
|
const oldPoints = elem.getAttribute('points')
|
|
const radialshift = elem.getAttribute('radialshift')
|
|
let xpos = 0
|
|
let ypos = 0
|
|
if (elem.points) {
|
|
const list = elem.points
|
|
const len = list.numberOfItems
|
|
for (let i = 0; i < len; ++i) {
|
|
const pt = list.getItem(i)
|
|
xpos += parseFloat(pt.x)
|
|
ypos += parseFloat(pt.y)
|
|
}
|
|
const cx = xpos / len
|
|
const cy = ypos / len
|
|
const circumradius = Number(elem.getAttribute('r'))
|
|
const inradius = circumradius / elem.getAttribute('starRadiusMultiplier')
|
|
|
|
let polyPoints = ''
|
|
for (let s = 0; point >= s; s++) {
|
|
let angle = 2.0 * Math.PI * (s / point)
|
|
if (orient === 'point') {
|
|
angle -= Math.PI / 2
|
|
} else if (orient === 'edge') {
|
|
angle = angle + Math.PI / point - Math.PI / 2
|
|
}
|
|
|
|
let x = circumradius * Math.cos(angle) + cx
|
|
let y = circumradius * Math.sin(angle) + cy
|
|
|
|
polyPoints += x + ',' + y + ' '
|
|
|
|
if (!isNaN(inradius)) {
|
|
angle = 2.0 * Math.PI * (s / point) + Math.PI / point
|
|
if (orient === 'point') {
|
|
angle -= Math.PI / 2
|
|
} else if (orient === 'edge') {
|
|
angle = angle + Math.PI / point - Math.PI / 2
|
|
}
|
|
angle += radialshift
|
|
|
|
x = inradius * Math.cos(angle) + cx
|
|
y = inradius * Math.sin(angle) + cy
|
|
|
|
polyPoints += x + ',' + y + ' '
|
|
}
|
|
}
|
|
elem.setAttribute('points', polyPoints)
|
|
addToHistory(new ChangeElementCommand(elem, { point: oldPoint, points: oldPoints }))
|
|
}
|
|
}
|
|
}
|
|
})
|
|
$id('RadiusMultiplier').addEventListener('change', (event) => {
|
|
setAttr('starRadiusMultiplier', event.target.value)
|
|
})
|
|
$id('radialShift').addEventListener('change', (event) => {
|
|
setAttr('radialshift', event.target.value)
|
|
})
|
|
$id('polySides').addEventListener('change', (event) => {
|
|
setAttr('sides', event.target.value)
|
|
const sides = event.target.value
|
|
let i = selElems.length
|
|
while (i--) {
|
|
const elem = selElems[i]
|
|
if (elem.hasAttribute('edge')) {
|
|
const oldSides = elem.getAttribute('sides')
|
|
const oldPoints = elem.getAttribute('points')
|
|
let xpos = 0
|
|
let ypos = 0
|
|
if (elem.points) {
|
|
const list = elem.points
|
|
const len = list.numberOfItems
|
|
for (let i = 0; i < len; ++i) {
|
|
const pt = list.getItem(i)
|
|
xpos += parseFloat(pt.x)
|
|
ypos += parseFloat(pt.y)
|
|
}
|
|
const cx = xpos / len
|
|
const cy = ypos / len
|
|
const edg = elem.getAttribute('edge')
|
|
const inradius = (edg / 2) * cot(Math.PI / sides)
|
|
const circumradius = inradius * sec(Math.PI / sides)
|
|
let points = ''
|
|
for (let s = 0; sides >= s; s++) {
|
|
const angle = (2.0 * Math.PI * s) / sides
|
|
const x = circumradius * Math.cos(angle) + cx
|
|
const y = circumradius * Math.sin(angle) + cy
|
|
points += x + ',' + y + ' '
|
|
}
|
|
elem.setAttribute('points', points)
|
|
addToHistory(new ChangeElementCommand(elem, { sides: oldSides, points: oldPoints }))
|
|
}
|
|
}
|
|
}
|
|
})
|
|
},
|
|
mouseDown (opts) {
|
|
if (svgCanvas.getMode() === 'star') {
|
|
const fill = svgCanvas.getColor('fill')
|
|
const stroke = svgCanvas.getColor('stroke')
|
|
const strokeWidth = svgCanvas.getStrokeWidth()
|
|
started = true
|
|
newFO = svgCanvas.addSVGElementsFromJson({
|
|
element: 'polygon',
|
|
attr: {
|
|
cx: opts.start_x,
|
|
cy: opts.start_y,
|
|
id: svgCanvas.getNextId(),
|
|
shape: 'star',
|
|
point: $id('starNumPoints').value,
|
|
r: 0,
|
|
radialshift: $id('radialShift').value,
|
|
r2: 0,
|
|
orient: 'point',
|
|
fill,
|
|
stroke,
|
|
'stroke-width': strokeWidth
|
|
}
|
|
})
|
|
return {
|
|
started: true
|
|
}
|
|
}
|
|
if (svgCanvas.getMode() === 'polygon') {
|
|
const fill = svgCanvas.getColor('fill')
|
|
const stroke = svgCanvas.getColor('stroke')
|
|
const strokeWidth = svgCanvas.getStrokeWidth()
|
|
started = true
|
|
newFO = svgCanvas.addSVGElementsFromJson({
|
|
element: 'polygon',
|
|
attr: {
|
|
cx: opts.start_x,
|
|
cy: opts.start_y,
|
|
id: svgCanvas.getNextId(),
|
|
shape: 'regularPoly',
|
|
sides: $id('polySides').value,
|
|
orient: 'x',
|
|
edge: 0,
|
|
fill,
|
|
stroke,
|
|
'stroke-width': strokeWidth
|
|
}
|
|
})
|
|
|
|
return {
|
|
started: true
|
|
}
|
|
}
|
|
return undefined
|
|
},
|
|
mouseMove (opts) {
|
|
if (!started) {
|
|
return undefined
|
|
}
|
|
if (svgCanvas.getMode() === 'star') {
|
|
const cx = Number(newFO.getAttribute('cx'))
|
|
const cy = Number(newFO.getAttribute('cy'))
|
|
const point = Number(newFO.getAttribute('point'))
|
|
const orient = newFO.getAttribute('orient')
|
|
const fill = newFO.getAttribute('fill')
|
|
const stroke = newFO.getAttribute('stroke')
|
|
const strokeWidth = Number(newFO.getAttribute('stroke-width'))
|
|
const radialshift = Number(newFO.getAttribute('radialshift'))
|
|
|
|
let x = opts.mouse_x
|
|
let y = opts.mouse_y
|
|
|
|
const circumradius =
|
|
Math.sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy)) / 1.5
|
|
const RadiusMultiplier = document.getElementById('RadiusMultiplier').value
|
|
const inradius =
|
|
circumradius / RadiusMultiplier
|
|
newFO.setAttribute('r', circumradius)
|
|
newFO.setAttribute('r2', inradius)
|
|
newFO.setAttribute('starRadiusMultiplier', RadiusMultiplier)
|
|
|
|
let polyPoints = ''
|
|
for (let s = 0; point >= s; s++) {
|
|
let angle = 2.0 * Math.PI * (s / point)
|
|
if (orient === 'point') {
|
|
angle -= Math.PI / 2
|
|
} else if (orient === 'edge') {
|
|
angle = angle + Math.PI / point - Math.PI / 2
|
|
}
|
|
|
|
x = circumradius * Math.cos(angle) + cx
|
|
y = circumradius * Math.sin(angle) + cy
|
|
|
|
polyPoints += x + ',' + y + ' '
|
|
|
|
if (!isNaN(inradius)) {
|
|
angle = 2.0 * Math.PI * (s / point) + Math.PI / point
|
|
if (orient === 'point') {
|
|
angle -= Math.PI / 2
|
|
} else if (orient === 'edge') {
|
|
angle = angle + Math.PI / point - Math.PI / 2
|
|
}
|
|
angle += radialshift
|
|
|
|
x = inradius * Math.cos(angle) + cx
|
|
y = inradius * Math.sin(angle) + cy
|
|
|
|
polyPoints += x + ',' + y + ' '
|
|
}
|
|
}
|
|
newFO.setAttribute('points', polyPoints)
|
|
newFO.setAttribute('fill', fill)
|
|
newFO.setAttribute('stroke', stroke)
|
|
newFO.setAttribute('stroke-width', strokeWidth)
|
|
/* const shape = */ newFO.getAttribute('shape')
|
|
|
|
return {
|
|
started: true
|
|
}
|
|
}
|
|
if (svgCanvas.getMode() === 'polygon') {
|
|
const cx = Number(newFO.getAttribute('cx'))
|
|
const cy = Number(newFO.getAttribute('cy'))
|
|
const sides = Number(newFO.getAttribute('sides'))
|
|
// const orient = newFO.getAttribute('orient');
|
|
const fill = newFO.getAttribute('fill')
|
|
const stroke = newFO.getAttribute('stroke')
|
|
const strokeWidth = Number(newFO.getAttribute('stroke-width'))
|
|
|
|
let x = opts.mouse_x
|
|
let y = opts.mouse_y
|
|
|
|
const edg =
|
|
Math.sqrt((x - cx) * (x - cx) + (y - cy) * (y - cy)) / 1.5
|
|
newFO.setAttribute('edge', edg)
|
|
|
|
const inradius = (edg / 2) * cot(Math.PI / sides)
|
|
const circumradius = inradius * sec(Math.PI / sides)
|
|
let points = ''
|
|
for (let s = 0; sides >= s; s++) {
|
|
const angle = (2.0 * Math.PI * s) / sides
|
|
x = circumradius * Math.cos(angle) + cx
|
|
y = circumradius * Math.sin(angle) + cy
|
|
|
|
points += x + ',' + y + ' '
|
|
}
|
|
|
|
// const poly = newFO.createElementNS(NS.SVG, 'polygon');
|
|
newFO.setAttribute('points', points)
|
|
newFO.setAttribute('fill', fill)
|
|
newFO.setAttribute('stroke', stroke)
|
|
newFO.setAttribute('stroke-width', strokeWidth)
|
|
return {
|
|
started: true
|
|
}
|
|
}
|
|
return undefined
|
|
},
|
|
mouseUp () {
|
|
if (svgCanvas.getMode() === 'star') {
|
|
const r = newFO.getAttribute('r')
|
|
return {
|
|
keep: r !== '0',
|
|
element: newFO
|
|
}
|
|
}
|
|
if (svgCanvas.getMode() === 'polygon') {
|
|
const edge = newFO.getAttribute('edge')
|
|
const keep = edge !== '0'
|
|
// svgCanvas.addToSelection([newFO], true);
|
|
return {
|
|
keep,
|
|
element: newFO
|
|
}
|
|
}
|
|
return undefined
|
|
},
|
|
selectedChanged (opts) {
|
|
// Use this to update the current selected elements
|
|
selElems = opts.elems
|
|
|
|
let i = selElems.length
|
|
while (i--) {
|
|
const elem = selElems[i]
|
|
if (elem?.getAttribute('shape') === 'star') {
|
|
if (opts.selectedElement && !opts.multiselected) {
|
|
$id('starNumPoints').value = elem.getAttribute('point')
|
|
$id('radialShift').value = elem.getAttribute('radialshift')
|
|
showPanel(true, 'star')
|
|
} else {
|
|
showPanel(false, 'star')
|
|
}
|
|
} else if (elem?.getAttribute('shape') === 'regularPoly') {
|
|
if (opts.selectedElement && !opts.multiselected) {
|
|
$id('polySides').value = elem.getAttribute('sides')
|
|
showPanel(true, 'polygon')
|
|
} else {
|
|
showPanel(false, 'polygon')
|
|
}
|
|
} else {
|
|
showPanel(false, 'star')
|
|
showPanel(false, 'polygon')
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|