Merge pull request #565 from danvk/gulp

[dygraphs.git] / plugins / annotations.js

diff --git a/plugins/annotations.js b/plugins/annotations.js
deleted file mode 100644 (file)
index 8576104..0000000
--- a/plugins/annotations.js
+++ /dev/null
@@ -1,182 +0,0 @@
-/**
- * @license
- * Copyright 2012 Dan Vanderkam (danvdk@gmail.com)
- * MIT-licensed (http://opensource.org/licenses/MIT)
- */
-
-/*global Dygraph:false */
-
-Dygraph.Plugins.Annotations = (function() {
-
-"use strict";
-
-/**
-Current bits of jankiness:
-- Uses dygraph.layout_ to get the parsed annotations.
-- Uses dygraph.plotter_.area
-
-It would be nice if the plugin didn't require so much special support inside
-the core dygraphs classes, but annotations involve quite a bit of parsing and
-layout.
-
-TODO(danvk): cache DOM elements.
-
-*/
-
-var annotations = function() {
-  this.annotations_ = [];
-};
-
-annotations.prototype.toString = function() {
-  return "Annotations Plugin";
-};
-
-annotations.prototype.activate = function(g) {
-  return {
-    clearChart: this.clearChart,
-    didDrawChart: this.didDrawChart
-  };
-};
-
-annotations.prototype.detachLabels = function() {
-  for (var i = 0; i < this.annotations_.length; i++) {
-    var a = this.annotations_[i];
-    if (a.parentNode) a.parentNode.removeChild(a);
-    this.annotations_[i] = null;
-  }
-  this.annotations_ = [];
-};
-
-annotations.prototype.clearChart = function(e) {
-  this.detachLabels();
-};
-
-annotations.prototype.didDrawChart = function(e) {
-  var g = e.dygraph;
-
-  // Early out in the (common) case of zero annotations.
-  var points = g.layout_.annotated_points;
-  if (!points || points.length === 0) return;
-
-  var containerDiv = e.canvas.parentNode;
-  var annotationStyle = {
-    "position": "absolute",
-    "fontSize": g.getOption('axisLabelFontSize') + "px",
-    "zIndex": 10,
-    "overflow": "hidden"
-  };
-
-  var bindEvt = function(eventName, classEventName, pt) {
-    return function(annotation_event) {
-      var a = pt.annotation;
-      if (a.hasOwnProperty(eventName)) {
-        a[eventName](a, pt, g, annotation_event);
-      } else if (g.getOption(classEventName)) {
-        g.getOption(classEventName)(a, pt, g, annotation_event );
-      }
-    };
-  };
-
-  // Add the annotations one-by-one.
-  var area = e.dygraph.plotter_.area;
-
-  // x-coord to sum of previous annotation's heights (used for stacking).
-  var xToUsedHeight = {};
-
-  for (var i = 0; i < points.length; i++) {
-    var p = points[i];
-    if (p.canvasx < area.x || p.canvasx > area.x + area.w ||
-        p.canvasy < area.y || p.canvasy > area.y + area.h) {
-      continue;
-    }
-
-    var a = p.annotation;
-    var tick_height = 6;
-    if (a.hasOwnProperty("tickHeight")) {
-      tick_height = a.tickHeight;
-    }
-
-    var div = document.createElement("div");
-    for (var name in annotationStyle) {
-      if (annotationStyle.hasOwnProperty(name)) {
-        div.style[name] = annotationStyle[name];
-      }
-    }
-    if (!a.hasOwnProperty('icon')) {
-      div.className = "dygraphDefaultAnnotation";
-    }
-    if (a.hasOwnProperty('cssClass')) {
-      div.className += " " + a.cssClass;
-    }
-
-    var width = a.hasOwnProperty('width') ? a.width : 16;
-    var height = a.hasOwnProperty('height') ? a.height : 16;
-    if (a.hasOwnProperty('icon')) {
-      var img = document.createElement("img");
-      img.src = a.icon;
-      img.width = width;
-      img.height = height;
-      div.appendChild(img);
-    } else if (p.annotation.hasOwnProperty('shortText')) {
-      div.appendChild(document.createTextNode(p.annotation.shortText));
-    }
-    var left = p.canvasx - width / 2;
-    div.style.left = left + "px";
-    var divTop = 0;
-    if (a.attachAtBottom) {
-      var y = (area.y + area.h - height - tick_height);
-      if (xToUsedHeight[left]) {
-        y -= xToUsedHeight[left];
-      } else {
-        xToUsedHeight[left] = 0;
-      }
-      xToUsedHeight[left] += (tick_height + height);
-      divTop = y;
-    } else {
-      divTop = p.canvasy - height - tick_height;
-    }
-    div.style.top = divTop + "px";
-    div.style.width = width + "px";
-    div.style.height = height + "px";
-    div.title = p.annotation.text;
-    div.style.color = g.colorsMap_[p.name];
-    div.style.borderColor = g.colorsMap_[p.name];
-    a.div = div;
-
-    g.addAndTrackEvent(div, 'click',
-        bindEvt('clickHandler', 'annotationClickHandler', p, this));
-    g.addAndTrackEvent(div, 'mouseover',
-        bindEvt('mouseOverHandler', 'annotationMouseOverHandler', p, this));
-    g.addAndTrackEvent(div, 'mouseout',
-        bindEvt('mouseOutHandler', 'annotationMouseOutHandler', p, this));
-    g.addAndTrackEvent(div, 'dblclick',
-        bindEvt('dblClickHandler', 'annotationDblClickHandler', p, this));
-
-    containerDiv.appendChild(div);
-    this.annotations_.push(div);
-
-    var ctx = e.drawingContext;
-    ctx.save();
-    ctx.strokeStyle = g.colorsMap_[p.name];
-    ctx.beginPath();
-    if (!a.attachAtBottom) {
-      ctx.moveTo(p.canvasx, p.canvasy);
-      ctx.lineTo(p.canvasx, p.canvasy - 2 - tick_height);
-    } else {
-      var y = divTop + height;
-      ctx.moveTo(p.canvasx, y);
-      ctx.lineTo(p.canvasx, y + tick_height);
-    }
-    ctx.closePath();
-    ctx.stroke();
-    ctx.restore();
-  }
-};
-
-annotations.prototype.destroy = function() {
-  this.detachLabels();
-};
-
-return annotations;
-
-})();