dygraphs
Version:
dygraphs is a fast, flexible open source JavaScript charting library.
95 lines (86 loc) • 11.9 kB
JavaScript
;
/**
* @license
* Copyright 2015 Petr Shevtsov (petr.shevtsov@gmail.com)
* MIT-licenced: https://opensource.org/licenses/MIT
*/
/* loader wrapper to allow browser use and ES6 imports */
(function _extras_crosshair_wrapper() {
'use strict';
var Dygraph;
if (window.Dygraph) {
Dygraph = window.Dygraph;
} else if (typeof module !== 'undefined') {
Dygraph = require('../dygraph');
if (typeof Dygraph.NAME === 'undefined' && typeof Dygraph["default"] !== 'undefined') Dygraph = Dygraph["default"];
}
/* end of loader wrapper header */
Dygraph.Plugins.Crosshair = function _extras_crosshair_closure() {
"use strict";
/**
* Creates the crosshair
*
* @constructor
*/
var crosshair = function crosshair(opt_options) {
this.canvas_ = document.createElement("canvas");
opt_options = opt_options || {};
this.direction_ = opt_options.direction || null;
this.strokeStyle_ = opt_options.strokeStyle || "rgba(0, 0, 0, 0.3)";
};
crosshair.prototype.toString = function toString() {
return "Crosshair Plugin";
};
/**
* @param {Dygraph} g Graph instance.
* @return {object.<string, function(ev)>} Mapping of event names to callbacks.
*/
crosshair.prototype.activate = function activate(g) {
g.graphDiv.appendChild(this.canvas_);
return {
select: this.select,
deselect: this.deselect
};
};
crosshair.prototype.select = function select(e) {
if (this.direction_ === null) {
return;
}
var width = e.dygraph.width_;
var height = e.dygraph.height_;
this.canvas_.width = width;
this.canvas_.height = height;
this.canvas_.style.width = width + "px"; // for IE
this.canvas_.style.height = height + "px"; // for IE
var ctx = this.canvas_.getContext("2d");
ctx.clearRect(0, 0, width, height);
ctx.strokeStyle = this.strokeStyle_;
ctx.beginPath();
var canvasx = Math.floor(e.dygraph.selPoints_[0].canvasx) + 0.5; // crisper rendering
if (this.direction_ === "vertical" || this.direction_ === "both") {
ctx.moveTo(canvasx, 0);
ctx.lineTo(canvasx, height);
}
if (this.direction_ === "horizontal" || this.direction_ === "both") {
for (var i = 0; i < e.dygraph.selPoints_.length; i++) {
var canvasy = Math.floor(e.dygraph.selPoints_[i].canvasy) + 0.5; // crisper rendering
ctx.moveTo(0, canvasy);
ctx.lineTo(width, canvasy);
}
}
ctx.stroke();
ctx.closePath();
};
crosshair.prototype.deselect = function deselect(e) {
var ctx = this.canvas_.getContext("2d");
ctx.clearRect(0, 0, this.canvas_.width, this.canvas_.height);
};
crosshair.prototype.destroy = function destroy() {
this.canvas_ = null;
};
return crosshair;
}();
/* loader wrapper */
Dygraph._require.add('dygraphs/src/extras/crosshair.js', /* exports */{});
})();
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_extras_crosshair_wrapper","Dygraph","window","module","require","NAME","Plugins","Crosshair","_extras_crosshair_closure","crosshair","opt_options","canvas_","document","createElement","direction_","direction","strokeStyle_","strokeStyle","prototype","toString","activate","g","graphDiv","appendChild","select","deselect","e","width","dygraph","width_","height","height_","style","ctx","getContext","clearRect","beginPath","canvasx","Math","floor","selPoints_","moveTo","lineTo","i","length","canvasy","stroke","closePath","destroy","_require","add"],"sources":["../../src/extras/crosshair.js"],"sourcesContent":["/**\n * @license\n * Copyright 2015 Petr Shevtsov (petr.shevtsov@gmail.com)\n * MIT-licenced: https://opensource.org/licenses/MIT\n */\n\n/* loader wrapper to allow browser use and ES6 imports */\n(function _extras_crosshair_wrapper() {\n'use strict';\nvar Dygraph;\nif (window.Dygraph) {\n  Dygraph = window.Dygraph;\n} else if (typeof(module) !== 'undefined') {\n  Dygraph = require('../dygraph');\n  if (typeof(Dygraph.NAME) === 'undefined' && typeof(Dygraph.default) !== 'undefined')\n    Dygraph = Dygraph.default;\n}\n/* end of loader wrapper header */\n\nDygraph.Plugins.Crosshair = (function _extras_crosshair_closure() {\n  \"use strict\";\n\n  /**\n   * Creates the crosshair\n   *\n   * @constructor\n   */\n\n  var crosshair = function crosshair(opt_options) {\n    this.canvas_ = document.createElement(\"canvas\");\n    opt_options = opt_options || {};\n    this.direction_ = opt_options.direction || null;\n    this.strokeStyle_ = opt_options.strokeStyle || \"rgba(0, 0, 0, 0.3)\";\n  };\n\n  crosshair.prototype.toString = function toString() {\n    return \"Crosshair Plugin\";\n  };\n\n  /**\n   * @param {Dygraph} g Graph instance.\n   * @return {object.<string, function(ev)>} Mapping of event names to callbacks.\n   */\n  crosshair.prototype.activate = function activate(g) {\n    g.graphDiv.appendChild(this.canvas_);\n\n    return {\n      select: this.select,\n      deselect: this.deselect\n    };\n  };\n\n  crosshair.prototype.select = function select(e) {\n    if (this.direction_ === null) {\n      return;\n    }\n\n    var width = e.dygraph.width_;\n    var height = e.dygraph.height_;\n    this.canvas_.width = width;\n    this.canvas_.height = height;\n    this.canvas_.style.width = width + \"px\";    // for IE\n    this.canvas_.style.height = height + \"px\";  // for IE\n\n    var ctx = this.canvas_.getContext(\"2d\");\n    ctx.clearRect(0, 0, width, height);\n    ctx.strokeStyle = this.strokeStyle_;\n    ctx.beginPath();\n\n    var canvasx = Math.floor(e.dygraph.selPoints_[0].canvasx) + 0.5; // crisper rendering\n\n    if (this.direction_ === \"vertical\" || this.direction_ === \"both\") {\n      ctx.moveTo(canvasx, 0);\n      ctx.lineTo(canvasx, height);\n    }\n\n    if (this.direction_ === \"horizontal\" || this.direction_ === \"both\") {\n      for (var i = 0; i < e.dygraph.selPoints_.length; i++) {\n        var canvasy = Math.floor(e.dygraph.selPoints_[i].canvasy) + 0.5; // crisper rendering\n        ctx.moveTo(0, canvasy);\n        ctx.lineTo(width, canvasy);\n      }\n    }\n\n    ctx.stroke();\n    ctx.closePath();\n  };\n\n  crosshair.prototype.deselect = function deselect(e) {\n    var ctx = this.canvas_.getContext(\"2d\");\n    ctx.clearRect(0, 0, this.canvas_.width, this.canvas_.height);\n  };\n\n  crosshair.prototype.destroy = function destroy() {\n    this.canvas_ = null;\n  };\n\n  return crosshair;\n})();\n\n/* loader wrapper */\nDygraph._require.add('dygraphs/src/extras/crosshair.js', /* exports */ {});\n})();\n"],"mappings":";;AAAA;AACA;AACA;AACA;AACA;;AAEA;AACA,CAAC,SAASA,yBAAyB,GAAG;EACtC,YAAY;;EACZ,IAAIC,OAAO;EACX,IAAIC,MAAM,CAACD,OAAO,EAAE;IAClBA,OAAO,GAAGC,MAAM,CAACD,OAAO;EAC1B,CAAC,MAAM,IAAI,OAAOE,MAAO,KAAK,WAAW,EAAE;IACzCF,OAAO,GAAGG,OAAO,CAAC,YAAY,CAAC;IAC/B,IAAI,OAAOH,OAAO,CAACI,IAAK,KAAK,WAAW,IAAI,OAAOJ,OAAO,WAAS,KAAK,WAAW,EACjFA,OAAO,GAAGA,OAAO,WAAQ;EAC7B;EACA;;EAEAA,OAAO,CAACK,OAAO,CAACC,SAAS,GAAI,SAASC,yBAAyB,GAAG;IAChE,YAAY;;IAEZ;AACF;AACA;AACA;AACA;IAEE,IAAIC,SAAS,GAAG,SAASA,SAAS,CAACC,WAAW,EAAE;MAC9C,IAAI,CAACC,OAAO,GAAGC,QAAQ,CAACC,aAAa,CAAC,QAAQ,CAAC;MAC/CH,WAAW,GAAGA,WAAW,IAAI,CAAC,CAAC;MAC/B,IAAI,CAACI,UAAU,GAAGJ,WAAW,CAACK,SAAS,IAAI,IAAI;MAC/C,IAAI,CAACC,YAAY,GAAGN,WAAW,CAACO,WAAW,IAAI,oBAAoB;IACrE,CAAC;IAEDR,SAAS,CAACS,SAAS,CAACC,QAAQ,GAAG,SAASA,QAAQ,GAAG;MACjD,OAAO,kBAAkB;IAC3B,CAAC;;IAED;AACF;AACA;AACA;IACEV,SAAS,CAACS,SAAS,CAACE,QAAQ,GAAG,SAASA,QAAQ,CAACC,CAAC,EAAE;MAClDA,CAAC,CAACC,QAAQ,CAACC,WAAW,CAAC,IAAI,CAACZ,OAAO,CAAC;MAEpC,OAAO;QACLa,MAAM,EAAE,IAAI,CAACA,MAAM;QACnBC,QAAQ,EAAE,IAAI,CAACA;MACjB,CAAC;IACH,CAAC;IAEDhB,SAAS,CAACS,SAAS,CAACM,MAAM,GAAG,SAASA,MAAM,CAACE,CAAC,EAAE;MAC9C,IAAI,IAAI,CAACZ,UAAU,KAAK,IAAI,EAAE;QAC5B;MACF;MAEA,IAAIa,KAAK,GAAGD,CAAC,CAACE,OAAO,CAACC,MAAM;MAC5B,IAAIC,MAAM,GAAGJ,CAAC,CAACE,OAAO,CAACG,OAAO;MAC9B,IAAI,CAACpB,OAAO,CAACgB,KAAK,GAAGA,KAAK;MAC1B,IAAI,CAAChB,OAAO,CAACmB,MAAM,GAAGA,MAAM;MAC5B,IAAI,CAACnB,OAAO,CAACqB,KAAK,CAACL,KAAK,GAAGA,KAAK,GAAG,IAAI,CAAC,CAAI;MAC5C,IAAI,CAAChB,OAAO,CAACqB,KAAK,CAACF,MAAM,GAAGA,MAAM,GAAG,IAAI,CAAC,CAAE;;MAE5C,IAAIG,GAAG,GAAG,IAAI,CAACtB,OAAO,CAACuB,UAAU,CAAC,IAAI,CAAC;MACvCD,GAAG,CAACE,SAAS,CAAC,CAAC,EAAE,CAAC,EAAER,KAAK,EAAEG,MAAM,CAAC;MAClCG,GAAG,CAAChB,WAAW,GAAG,IAAI,CAACD,YAAY;MACnCiB,GAAG,CAACG,SAAS,EAAE;MAEf,IAAIC,OAAO,GAAGC,IAAI,CAACC,KAAK,CAACb,CAAC,CAACE,OAAO,CAACY,UAAU,CAAC,CAAC,CAAC,CAACH,OAAO,CAAC,GAAG,GAAG,CAAC,CAAC;;MAEjE,IAAI,IAAI,CAACvB,UAAU,KAAK,UAAU,IAAI,IAAI,CAACA,UAAU,KAAK,MAAM,EAAE;QAChEmB,GAAG,CAACQ,MAAM,CAACJ,OAAO,EAAE,CAAC,CAAC;QACtBJ,GAAG,CAACS,MAAM,CAACL,OAAO,EAAEP,MAAM,CAAC;MAC7B;MAEA,IAAI,IAAI,CAAChB,UAAU,KAAK,YAAY,IAAI,IAAI,CAACA,UAAU,KAAK,MAAM,EAAE;QAClE,KAAK,IAAI6B,CAAC,GAAG,CAAC,EAAEA,CAAC,GAAGjB,CAAC,CAACE,OAAO,CAACY,UAAU,CAACI,MAAM,EAAED,CAAC,EAAE,EAAE;UACpD,IAAIE,OAAO,GAAGP,IAAI,CAACC,KAAK,CAACb,CAAC,CAACE,OAAO,CAACY,UAAU,CAACG,CAAC,CAAC,CAACE,OAAO,CAAC,GAAG,GAAG,CAAC,CAAC;UACjEZ,GAAG,CAACQ,MAAM,CAAC,CAAC,EAAEI,OAAO,CAAC;UACtBZ,GAAG,CAACS,MAAM,CAACf,KAAK,EAAEkB,OAAO,CAAC;QAC5B;MACF;MAEAZ,GAAG,CAACa,MAAM,EAAE;MACZb,GAAG,CAACc,SAAS,EAAE;IACjB,CAAC;IAEDtC,SAAS,CAACS,SAAS,CAACO,QAAQ,GAAG,SAASA,QAAQ,CAACC,CAAC,EAAE;MAClD,IAAIO,GAAG,GAAG,IAAI,CAACtB,OAAO,CAACuB,UAAU,CAAC,IAAI,CAAC;MACvCD,GAAG,CAACE,SAAS,CAAC,CAAC,EAAE,CAAC,EAAE,IAAI,CAACxB,OAAO,CAACgB,KAAK,EAAE,IAAI,CAAChB,OAAO,CAACmB,MAAM,CAAC;IAC9D,CAAC;IAEDrB,SAAS,CAACS,SAAS,CAAC8B,OAAO,GAAG,SAASA,OAAO,GAAG;MAC/C,IAAI,CAACrC,OAAO,GAAG,IAAI;IACrB,CAAC;IAED,OAAOF,SAAS;EAClB,CAAC,EAAG;;EAEJ;EACAR,OAAO,CAACgD,QAAQ,CAACC,GAAG,CAAC,kCAAkC,EAAE,aAAc,CAAC,CAAC,CAAC;AAC1E,CAAC,GAAG"}