/* globals jQuery */
|
/**
|
* ext-polygon.js
|
*
|
*
|
* @copyright 2010 CloudCanvas, Inc. All rights reserved
|
*
|
*/
|
export default {
|
name: 'polygon',
|
async init (S) {
|
const svgEditor = this;
|
const $ = jQuery;
|
const svgCanvas = svgEditor.canvas;
|
const {importLocale} = S, // {svgcontent}
|
// addElem = svgCanvas.addSVGElementFromJson,
|
editingitex = false;
|
const strings = await importLocale();
|
let selElems,
|
// svgdoc = S.svgroot.parentNode.ownerDocument,
|
// newFOG, newFOGParent, newDef, newImageName, newMaskID, modeChangeG,
|
// edg = 0,
|
// undoCommand = 'Not image';
|
started, newFO;
|
|
// const ccZoom;
|
// const wEl, hEl;
|
// const wOffset, hOffset;
|
// const ccRBG;
|
// const ccOpacity;
|
// const brushW, brushH;
|
|
// const ccDebug = document.getElementById('debugpanel');
|
|
/* const properlySourceSizeTextArea = function(){
|
// TODO: remove magic numbers here and get values from CSS
|
const height = $('#svg_source_container').height() - 80;
|
$('#svg_source_textarea').css('height', height);
|
}; */
|
function showPanel (on) {
|
let fcRules = $('#fc_rules');
|
if (!fcRules.length) {
|
fcRules = $('<style id="fc_rules"></style>').appendTo('head');
|
}
|
fcRules.text(!on ? '' : ' #tool_topath { display: none !important; }');
|
$('#polygon_panel').toggle(on);
|
}
|
|
/*
|
function toggleSourceButtons(on){
|
$('#tool_source_save, #tool_source_cancel').toggle(!on);
|
$('#polygon_save, #polygon_cancel').toggle(on);
|
}
|
*/
|
|
function setAttr (attr, val) {
|
svgCanvas.changeSelectedAttribute(attr, val);
|
svgCanvas.call('changed', selElems);
|
}
|
|
function cot (n) {
|
return 1 / Math.tan(n);
|
}
|
|
function sec (n) {
|
return 1 / Math.cos(n);
|
}
|
|
/**
|
* Obtained from http://code.google.com/p/passenger-top/source/browse/instiki/public/svg-edit/editor/extensions/ext-itex.js?r=3
|
* This function sets the content of of the currently-selected foreignObject element,
|
* based on the itex contained in string.
|
* @param {string} tex The itex text.
|
* @returns {boolean} This function returns false if the set was unsuccessful, true otherwise.
|
*/
|
/*
|
function setItexString(tex) {
|
const mathns = 'http://www.w3.org/1998/Math/MathML',
|
xmlnsns = 'http://www.w3.org/2000/xmlns/',
|
ajaxEndpoint = '../../itex';
|
const elt = selElems[0];
|
try {
|
const math = svgdoc.createElementNS(mathns, 'math');
|
math.setAttributeNS(xmlnsns, 'xmlns', mathns);
|
math.setAttribute('display', 'inline');
|
const semantics = document.createElementNS(mathns, 'semantics');
|
const annotation = document.createElementNS(mathns, 'annotation');
|
annotation.setAttribute('encoding', 'application/x-tex');
|
annotation.textContent = tex;
|
const mrow = document.createElementNS(mathns, 'mrow');
|
semantics.append(mrow, annotation);
|
math.append(semantics);
|
// make an AJAX request to the server, to get the MathML
|
$.post(ajaxEndpoint, {tex, display: 'inline'}, function(data){
|
const children = data.documentElement.childNodes;
|
while (children.length > 0) {
|
mrow.append(svgdoc.adoptNode(children[0], true));
|
}
|
svgCanvas.sanitizeSvg(math);
|
svgCanvas.call('changed', [elt]);
|
});
|
elt.firstChild.replaceWith(math);
|
svgCanvas.call('changed', [elt]);
|
svgCanvas.clearSelection();
|
} catch(e) {
|
console.log(e);
|
return false;
|
}
|
|
return true;
|
}
|
*/
|
const buttons = [{
|
id: 'tool_polygon',
|
icon: svgEditor.curConfig.extIconsPath + 'polygon.png',
|
type: 'mode',
|
position: 11,
|
events: {
|
click () {
|
svgCanvas.setMode('polygon');
|
showPanel(true);
|
}
|
}
|
}];
|
const contextTools = [{
|
type: 'input',
|
panel: 'polygon_panel',
|
id: 'polySides',
|
size: 3,
|
defval: 5,
|
events: {
|
change () {
|
setAttr('sides', this.value);
|
}
|
}
|
}];
|
return {
|
name: strings.name,
|
svgicons: svgEditor.curConfig.extIconsPath + 'polygon-icons.svg',
|
buttons: strings.buttons.map((button, i) => {
|
return Object.assign(buttons[i], button);
|
}),
|
context_tools: strings.contextTools.map((contextTool, i) => {
|
return Object.assign(contextTools[i], contextTool);
|
}),
|
|
callback () {
|
$('#polygon_panel').hide();
|
|
const endChanges = function () {
|
};
|
|
// TODO: Needs to be done after orig icon loads
|
setTimeout(function () {
|
// Create source save/cancel buttons
|
/* const save = */ $('#tool_source_save').clone().hide().attr('id', 'polygon_save').unbind().appendTo('#tool_source_back').click(function () {
|
if (!editingitex) {
|
return;
|
}
|
// Todo: Uncomment the setItexString() function above and handle ajaxEndpoint?
|
/*
|
if (!setItexString($('#svg_source_textarea').val())) {
|
$.confirm('Errors found. Revert to original?', function (ok) {
|
if (!ok) {
|
return false;
|
}
|
endChanges();
|
});
|
} else { */
|
endChanges();
|
// }
|
// setSelectMode();
|
});
|
|
/* const cancel = */ $('#tool_source_cancel').clone().hide().attr('id', 'polygon_cancel').unbind().appendTo('#tool_source_back').click(function () {
|
endChanges();
|
});
|
}, 3000);
|
},
|
mouseDown (opts) {
|
// const e = opts.event;
|
const rgb = svgCanvas.getColor('fill');
|
// const ccRgbEl = rgb.substring(1, rgb.length);
|
const sRgb = svgCanvas.getColor('stroke');
|
// ccSRgbEl = sRgb.substring(1, rgb.length);
|
const sWidth = svgCanvas.getStrokeWidth();
|
|
if (svgCanvas.getMode() === 'polygon') {
|
started = true;
|
|
newFO = svgCanvas.addSVGElementFromJson({
|
element: 'polygon',
|
attr: {
|
cx: opts.start_x,
|
cy: opts.start_y,
|
id: svgCanvas.getNextId(),
|
shape: 'regularPoly',
|
sides: document.getElementById('polySides').value,
|
orient: 'x',
|
edge: 0,
|
fill: rgb,
|
strokecolor: sRgb,
|
strokeWidth: sWidth
|
}
|
});
|
|
return {
|
started: true
|
};
|
}
|
},
|
mouseMove (opts) {
|
if (!started) {
|
return;
|
}
|
if (svgCanvas.getMode() === 'polygon') {
|
// const e = opts.event;
|
const c = $(newFO).attr(['cx', 'cy', 'sides', 'orient', 'fill', 'strokecolor', 'strokeWidth']);
|
let x = opts.mouse_x;
|
let y = opts.mouse_y;
|
const {cx, cy, fill, strokecolor, strokeWidth, sides} = c, // {orient} = c,
|
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', strokecolor);
|
newFO.setAttribute('stroke-width', strokeWidth);
|
// newFO.setAttribute('transform', 'rotate(-90)');
|
// const shape = newFO.getAttribute('shape');
|
// newFO.append(poly);
|
// DrawPoly(cx, cy, sides, edg, orient);
|
return {
|
started: true
|
};
|
}
|
},
|
|
mouseUp (opts) {
|
if (svgCanvas.getMode() === 'polygon') {
|
const attrs = $(newFO).attr('edge');
|
const keep = (attrs.edge !== '0');
|
// svgCanvas.addToSelection([newFO], true);
|
return {
|
keep,
|
element: newFO
|
};
|
}
|
},
|
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 && elem.getAttribute('shape') === 'regularPoly') {
|
if (opts.selectedElement && !opts.multiselected) {
|
$('#polySides').val(elem.getAttribute('sides'));
|
|
showPanel(true);
|
} else {
|
showPanel(false);
|
}
|
} else {
|
showPanel(false);
|
}
|
}
|
},
|
elementChanged (opts) {
|
// const elem = opts.elems[0];
|
}
|
};
|
}
|
};
|
