/**
* @file ext-polygon.js
*
*
* @copyright 2010 CloudCanvas, Inc. All rights reserved
*
*/
export default {
name: 'polygon',
async init (S) {
const svgEditor = this;
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);
}; */
/**
* @param {boolean} on
* @returns {void}
*/
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);
}
*/
/**
* @param {string} attr
* @param {string|Float} val
* @returns {void}
*/
function setAttr (attr, val) {
svgCanvas.changeSelectedAttribute(attr, val);
svgCanvas.call('changed', selElems);
}
/**
* @param {Float} n
* @returns {Float}
*/
function cot (n) {
return 1 / Math.tan(n);
}
/**
* @param {Float} n
* @returns {Float}
*/
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: Missing?
};
// 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())) {
const ok = await $.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) {
if (svgCanvas.getMode() !== 'polygon') {
return undefined;
}
// 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();
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 || svgCanvas.getMode() !== 'polygon') {
return undefined;
}
// 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') {
return undefined;
}
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];
}
};
}
};