mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-11-06 01:56:20 +00:00
120 lines
3.1 KiB
JavaScript
120 lines
3.1 KiB
JavaScript
/*\
|
|
title: $:/plugins/tiddlywiki/d3/cloudwidget.js
|
|
type: application/javascript
|
|
module-type: widget
|
|
|
|
A widget for displaying word clouds. Derived from https://github.com/jasondavies/d3-cloud
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
var d3 = require("$:/plugins/tiddlywiki/d3/d3.js").d3;
|
|
|
|
if($tw.browser) {
|
|
// Frightful hack to give the cloud plugin the global d3 variable it needs
|
|
window.d3 = d3;
|
|
d3.layout.cloud = require("$:/plugins/tiddlywiki/d3/d3.layout.cloud.js").cloud;
|
|
}
|
|
|
|
var CloudWidget = function(renderer) {
|
|
// Save state
|
|
this.renderer = renderer;
|
|
// Generate child nodes
|
|
this.generate();
|
|
};
|
|
|
|
CloudWidget.prototype.generate = function() {
|
|
// Get the parameters
|
|
this.data = this.renderer.getAttribute("data");
|
|
this.spiral = this.renderer.getAttribute("spiral","archimedean");
|
|
// Set the return element
|
|
this.tag = "div";
|
|
this.attributes = {
|
|
"class": "tw-cloudwidget"
|
|
};
|
|
};
|
|
|
|
CloudWidget.prototype.postRenderInDom = function() {
|
|
this.updateChart = this.createChart();
|
|
};
|
|
|
|
CloudWidget.prototype.refreshInDom = function(changedAttributes,changedTiddlers) {
|
|
// Reexecute the widget if the data reference attributes have changed
|
|
if(changedAttributes.data || changedTiddlers[this.data]) {
|
|
// Regenerate and rerender the widget and replace the existing DOM node
|
|
this.generate();
|
|
var oldDomNode = this.renderer.domNode,
|
|
newDomNode = this.renderer.renderInDom();
|
|
oldDomNode.parentNode.replaceChild(newDomNode,oldDomNode);
|
|
} else if(changedAttributes.spiral) {
|
|
// Update the chart if the spiral setting has changed
|
|
this.spiral = this.renderer.getAttribute("spiral","archimedean");
|
|
if(this.updateChart) {
|
|
this.updateChart();
|
|
}
|
|
}
|
|
};
|
|
|
|
CloudWidget.prototype.createChart = function() {
|
|
|
|
var self = this;
|
|
|
|
var domNode = this.renderer.domNode;
|
|
|
|
var fill = d3.scale.category20();
|
|
|
|
|
|
var data = this.renderer.renderTree.wiki.getTiddlerData(this.data);
|
|
|
|
if(!data) {
|
|
// Use dummy data if none provided
|
|
data = "This word cloud does not have any data in it".split(" ").map(function(d) {
|
|
return {text: d, size: 10 + Math.random() * 90};
|
|
})
|
|
}
|
|
|
|
var svg = d3.select(domNode).append("svg")
|
|
.attr("width", 600)
|
|
.attr("height", 400)
|
|
.append("g")
|
|
.attr("transform", "translate(300,200)");
|
|
|
|
var layout = d3.layout.cloud().size([600, 400])
|
|
.words(data)
|
|
.padding(5)
|
|
.rotate(function() { return ~~(Math.random() * 5) * 30 - 60; })
|
|
.font("Impact")
|
|
.fontSize(function(d) { return d.size*2; })
|
|
.on("end", draw)
|
|
.start();
|
|
|
|
function draw(words) {
|
|
svg.selectAll("text")
|
|
.data(words)
|
|
.enter().append("text")
|
|
.style("font-size", function(d) { return d.size + "px"; })
|
|
.style("font-family", "Impact")
|
|
.style("fill", function(d, i) { return fill(i); })
|
|
.attr("text-anchor", "middle")
|
|
.attr("transform", function(d) {
|
|
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
|
|
})
|
|
.text(function(d) { return d.text; });
|
|
}
|
|
|
|
function updateChart() {
|
|
layout.spiral(self.spiral);
|
|
}
|
|
|
|
return updateChart;
|
|
|
|
};
|
|
|
|
exports.d3cloud = CloudWidget;
|
|
|
|
})();
|