var inherit = require('../inherit');
var registerFeature = require('../registry').registerFeature;
var pathFeature = require('../pathFeature');
/**
* Create a new instance of class geo.svg.pathFeature.
*
* @class
* @alias geo.svg.pathFeature
* @extends geo.pathFeature
* @extends geo.svg.object
* @param {geo.pathFeature.spec} arg
* @returns {geo.svg.pathFeature}
*/
var svg_pathFeature = function (arg) {
'use strict';
if (!(this instanceof svg_pathFeature)) {
return new svg_pathFeature(arg);
}
var $ = require('jquery');
var object = require('./object');
var timestamp = require('../timestamp');
arg = arg || {};
pathFeature.call(this, arg);
object.call(this);
var m_this = this,
m_buildTime = timestamp(),
s_update = this._update,
m_style = {};
m_style.style = {};
/**
* Build.
*
* @returns {this}
*/
this._build = function () {
var data = m_this.data() || [],
s_style = m_this.style.get(),
posFunc = m_this.style.get('position'),
tmp, diag;
s_update.call(m_this);
diag = function (d) {
// in d3 v3 this was "d3.svg.diagonal(d);". See
// https://stackoverflow.com/questions/40845121/where-is-d3-svg-diagonal
return 'M' + d.source.x + ',' + d.source.y + 'C' +
d.source.x + ',' + (d.source.y + d.target.y) / 2 + ' ' +
d.target.x + ',' + (d.source.y + d.target.y) / 2 + ' ' +
d.target.x + ',' + d.target.y;
};
tmp = [];
data.forEach(function (d, i) {
var src, trg;
if (i < data.length - 1) {
src = posFunc(d, i);
trg = posFunc(data[i + 1], i + 1);
tmp.push({
source: m_this.featureGcsToDisplay(src),
target: m_this.featureGcsToDisplay(trg)
});
}
});
m_style.data = tmp;
m_style.attributes = {
d: diag
};
m_style.id = m_this._svgid();
m_style.append = 'path';
m_style.classes = ['svgPathFeature'];
m_style.style = $.extend({
fill: function () { return false; },
fillColor: {r: 0, g: 0, b: 0}
}, s_style);
m_style.visible = m_this.visible;
m_this.renderer()._drawFeatures(m_style);
m_buildTime.modified();
m_this.updateTime().modified();
return m_this;
};
/**
* Update.
*
* @returns {this}
*/
this._update = function () {
s_update.call(m_this);
if (m_this.dataTime().timestamp() >= m_buildTime.timestamp()) {
m_this._build();
}
return m_this;
};
this._init(arg);
return this;
};
inherit(svg_pathFeature, pathFeature);
registerFeature('svg', 'path', svg_pathFeature);
module.exports = svg_pathFeature;