You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
222 lines
7.0 KiB
222 lines
7.0 KiB
var util = require('../../util');
|
|
var DOMutil = require('../../DOMutil');
|
|
var Component = require('./Component');
|
|
|
|
/**
|
|
* Legend for Graph2d
|
|
*
|
|
* @param {vis.Graph2d.body} body
|
|
* @param {vis.Graph2d.options} options
|
|
* @param {number} side
|
|
* @param {vis.LineGraph.options} linegraphOptions
|
|
* @constructor Legend
|
|
* @extends Component
|
|
*/
|
|
function Legend(body, options, side, linegraphOptions) {
|
|
this.body = body;
|
|
this.defaultOptions = {
|
|
enabled: false,
|
|
icons: true,
|
|
iconSize: 20,
|
|
iconSpacing: 6,
|
|
left: {
|
|
visible: true,
|
|
position: 'top-left' // top/bottom - left,center,right
|
|
},
|
|
right: {
|
|
visible: true,
|
|
position: 'top-right' // top/bottom - left,center,right
|
|
}
|
|
};
|
|
|
|
this.side = side;
|
|
this.options = util.extend({}, this.defaultOptions);
|
|
this.linegraphOptions = linegraphOptions;
|
|
|
|
this.svgElements = {};
|
|
this.dom = {};
|
|
this.groups = {};
|
|
this.amountOfGroups = 0;
|
|
this._create();
|
|
this.framework = {svg: this.svg, svgElements: this.svgElements, options: this.options, groups: this.groups};
|
|
|
|
this.setOptions(options);
|
|
}
|
|
|
|
Legend.prototype = new Component();
|
|
|
|
Legend.prototype.clear = function() {
|
|
this.groups = {};
|
|
this.amountOfGroups = 0;
|
|
};
|
|
|
|
Legend.prototype.addGroup = function(label, graphOptions) {
|
|
|
|
// Include a group only if the group option 'excludeFromLegend: false' is not set.
|
|
if (graphOptions.options.excludeFromLegend != true) {
|
|
if (!this.groups.hasOwnProperty(label)) {
|
|
this.groups[label] = graphOptions;
|
|
}
|
|
this.amountOfGroups += 1;
|
|
}
|
|
};
|
|
|
|
Legend.prototype.updateGroup = function(label, graphOptions) {
|
|
this.groups[label] = graphOptions;
|
|
};
|
|
|
|
Legend.prototype.removeGroup = function(label) {
|
|
if (this.groups.hasOwnProperty(label)) {
|
|
delete this.groups[label];
|
|
this.amountOfGroups -= 1;
|
|
}
|
|
};
|
|
|
|
Legend.prototype._create = function() {
|
|
this.dom.frame = document.createElement('div');
|
|
this.dom.frame.className = 'vis-legend';
|
|
this.dom.frame.style.position = "absolute";
|
|
this.dom.frame.style.top = "10px";
|
|
this.dom.frame.style.display = "block";
|
|
|
|
this.dom.textArea = document.createElement('div');
|
|
this.dom.textArea.className = 'vis-legend-text';
|
|
this.dom.textArea.style.position = "relative";
|
|
this.dom.textArea.style.top = "0px";
|
|
|
|
this.svg = document.createElementNS('http://www.w3.org/2000/svg',"svg");
|
|
this.svg.style.position = 'absolute';
|
|
this.svg.style.top = 0 +'px';
|
|
this.svg.style.width = this.options.iconSize + 5 + 'px';
|
|
this.svg.style.height = '100%';
|
|
|
|
this.dom.frame.appendChild(this.svg);
|
|
this.dom.frame.appendChild(this.dom.textArea);
|
|
};
|
|
|
|
/**
|
|
* Hide the component from the DOM
|
|
*/
|
|
Legend.prototype.hide = function() {
|
|
// remove the frame containing the items
|
|
if (this.dom.frame.parentNode) {
|
|
this.dom.frame.parentNode.removeChild(this.dom.frame);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Show the component in the DOM (when not already visible).
|
|
*/
|
|
Legend.prototype.show = function() {
|
|
// show frame containing the items
|
|
if (!this.dom.frame.parentNode) {
|
|
this.body.dom.center.appendChild(this.dom.frame);
|
|
}
|
|
};
|
|
|
|
Legend.prototype.setOptions = function(options) {
|
|
var fields = ['enabled','orientation','icons','left','right'];
|
|
util.selectiveDeepExtend(fields, this.options, options);
|
|
};
|
|
|
|
Legend.prototype.redraw = function() {
|
|
var activeGroups = 0;
|
|
var groupArray = Object.keys(this.groups);
|
|
groupArray.sort(function (a,b) {
|
|
return (a < b ? -1 : 1);
|
|
})
|
|
|
|
for (var i = 0; i < groupArray.length; i++) {
|
|
var groupId = groupArray[i];
|
|
if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
|
|
activeGroups++;
|
|
}
|
|
}
|
|
|
|
if (this.options[this.side].visible == false || this.amountOfGroups == 0 || this.options.enabled == false || activeGroups == 0) {
|
|
this.hide();
|
|
}
|
|
else {
|
|
this.show();
|
|
if (this.options[this.side].position == 'top-left' || this.options[this.side].position == 'bottom-left') {
|
|
this.dom.frame.style.left = '4px';
|
|
this.dom.frame.style.textAlign = "left";
|
|
this.dom.textArea.style.textAlign = "left";
|
|
this.dom.textArea.style.left = (this.options.iconSize + 15) + 'px';
|
|
this.dom.textArea.style.right = '';
|
|
this.svg.style.left = 0 +'px';
|
|
this.svg.style.right = '';
|
|
}
|
|
else {
|
|
this.dom.frame.style.right = '4px';
|
|
this.dom.frame.style.textAlign = "right";
|
|
this.dom.textArea.style.textAlign = "right";
|
|
this.dom.textArea.style.right = (this.options.iconSize + 15) + 'px';
|
|
this.dom.textArea.style.left = '';
|
|
this.svg.style.right = 0 +'px';
|
|
this.svg.style.left = '';
|
|
}
|
|
|
|
if (this.options[this.side].position == 'top-left' || this.options[this.side].position == 'top-right') {
|
|
this.dom.frame.style.top = 4 - Number(this.body.dom.center.style.top.replace("px","")) + 'px';
|
|
this.dom.frame.style.bottom = '';
|
|
}
|
|
else {
|
|
var scrollableHeight = this.body.domProps.center.height - this.body.domProps.centerContainer.height;
|
|
this.dom.frame.style.bottom = 4 + scrollableHeight + Number(this.body.dom.center.style.top.replace("px","")) + 'px';
|
|
this.dom.frame.style.top = '';
|
|
}
|
|
|
|
if (this.options.icons == false) {
|
|
this.dom.frame.style.width = this.dom.textArea.offsetWidth + 10 + 'px';
|
|
this.dom.textArea.style.right = '';
|
|
this.dom.textArea.style.left = '';
|
|
this.svg.style.width = '0px';
|
|
}
|
|
else {
|
|
this.dom.frame.style.width = this.options.iconSize + 15 + this.dom.textArea.offsetWidth + 10 + 'px'
|
|
this.drawLegendIcons();
|
|
}
|
|
|
|
var content = '';
|
|
for (i = 0; i < groupArray.length; i++) {
|
|
groupId = groupArray[i];
|
|
if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
|
|
content += this.groups[groupId].content + '<br />';
|
|
}
|
|
}
|
|
this.dom.textArea.innerHTML = content;
|
|
this.dom.textArea.style.lineHeight = ((0.75 * this.options.iconSize) + this.options.iconSpacing) + 'px';
|
|
}
|
|
};
|
|
|
|
Legend.prototype.drawLegendIcons = function() {
|
|
if (this.dom.frame.parentNode) {
|
|
var groupArray = Object.keys(this.groups);
|
|
groupArray.sort(function (a,b) {
|
|
return (a < b ? -1 : 1);
|
|
});
|
|
|
|
// this resets the elements so the order is maintained
|
|
DOMutil.resetElements(this.svgElements);
|
|
|
|
var padding = window.getComputedStyle(this.dom.frame).paddingTop;
|
|
var iconOffset = Number(padding.replace('px',''));
|
|
var x = iconOffset;
|
|
var iconWidth = this.options.iconSize;
|
|
var iconHeight = 0.75 * this.options.iconSize;
|
|
var y = iconOffset + 0.5 * iconHeight + 3;
|
|
|
|
this.svg.style.width = iconWidth + 5 + iconOffset + 'px';
|
|
|
|
for (var i = 0; i < groupArray.length; i++) {
|
|
var groupId = groupArray[i];
|
|
if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
|
|
this.groups[groupId].getLegend(iconWidth, iconHeight, this.framework, x, y);
|
|
y += iconHeight + this.options.iconSpacing;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
module.exports = Legend;
|