1 files changed, 349 insertions, 0 deletions
diff --git a/ecomp-sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-layout.js b/ecomp-sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-layout.js
new file mode 100644
index 000000000..e766e8f54
--- /dev/null
+++ b/ecomp-sdk-app/src/main/webapp/static/fusion/raptor/dy3/js/dygraph-layout.js
@@ -0,0 +1,349 @@
+/**
+ * @license
+ * Copyright 2011 Dan Vanderkam (danvdk@gmail.com)
+ * MIT-licensed (http://opensource.org/licenses/MIT)
+ */
+
+/**
+ * @fileoverview Based on PlotKitLayout, but modified to meet the needs of
+ * dygraphs.
+ */
+
+/*jshint globalstrict: true */
+/*global Dygraph:false */
+"use strict";
+
+/**
+ * Creates a new DygraphLayout object.
+ *
+ * This class contains all the data to be charted.
+ * It uses data coordinates, but also records the chart range (in data
+ * coordinates) and hence is able to calculate percentage positions ('In this
+ * view, Point A lies 25% down the x-axis.')
+ *
+ * Two things that it does not do are:
+ * 1. Record pixel coordinates for anything.
+ * 2. (oddly) determine anything about the layout of chart elements.
+ *
+ * The naming is a vestige of Dygraph's original PlotKit roots.
+ *
+ * @constructor
+ */
+var DygraphLayout = function(dygraph) {
+  this.dygraph_ = dygraph;
+  /**
+   * Array of points for each series.
+   *
+   * [series index][row index in series] = |Point| structure,
+   * where series index refers to visible series only, and the
+   * point index is for the reduced set of points for the current
+   * zoom region (including one point just outside the window).
+   * All points in the same row index share the same X value.
+   *
+   * @type {Array.<Array.<Dygraph.PointType>>}
+   */
+  this.points = [];
+  this.setNames = [];
+  this.annotations = [];
+  this.yAxes_ = null;
+
+  // TODO(danvk): it's odd that xTicks_ and yTicks_ are inputs, but xticks and
+  // yticks are outputs. Clean this up.
+  this.xTicks_ = null;
+  this.yTicks_ = null;
+};
+
+DygraphLayout.prototype.attr_ = function(name) {
+  return this.dygraph_.attr_(name);
+};
+
+/**
+ * Add points for a single series.
+ *
+ * @param {string} setname Name of the series.
+ * @param {Array.<Dygraph.PointType>} set_xy Points for the series.
+ */
+DygraphLayout.prototype.addDataset = function(setname, set_xy) {
+  this.points.push(set_xy);
+  this.setNames.push(setname);
+};
+
+/**
+ * Returns the box which the chart should be drawn in. This is the canvas's
+ * box, less space needed for the axis and chart labels.
+ *
+ * @return {{x: number, y: number, w: number, h: number}}
+ */
+DygraphLayout.prototype.getPlotArea = function() {
+  return this.area_;
+};
+
+// Compute the box which the chart should be drawn in. This is the canvas's
+// box, less space needed for axis, chart labels, and other plug-ins.
+// NOTE: This should only be called by Dygraph.predraw_().
+DygraphLayout.prototype.computePlotArea = function() {
+  var area = {
+    // TODO(danvk): per-axis setting.
+    x: 0,
+    y: 0
+  };
+
+  area.w = this.dygraph_.width_ - area.x - this.attr_('rightGap');
+  area.h = this.dygraph_.height_;
+
+  // Let plugins reserve space.
+  var e = {
+    chart_div: this.dygraph_.graphDiv,
+    reserveSpaceLeft: function(px) {
+      var r = {
+        x: area.x,
+        y: area.y,
+        w: px,
+        h: area.h
+      };
+      area.x += px;
+      area.w -= px;
+      return r;
+    },
+    reserveSpaceRight: function(px) {
+      var r = {
+        x: area.x + area.w - px,
+        y: area.y,
+        w: px,
+        h: area.h
+      };
+      area.w -= px;
+      return r;
+    },
+    reserveSpaceTop: function(px) {
+      var r = {
+        x: area.x,
+        y: area.y,
+        w: area.w,
+        h: px
+      };
+      area.y += px;
+      area.h -= px;
+      return r;
+    },
+    reserveSpaceBottom: function(px) {
+      var r = {
+        x: area.x,
+        y: area.y + area.h - px,
+        w: area.w,
+        h: px
+      };
+      area.h -= px;
+      return r;
+    },
+    chartRect: function() {
+      return {x:area.x, y:area.y, w:area.w, h:area.h};
+    }
+  };
+  this.dygraph_.cascadeEvents_('layout', e);
+
+  this.area_ = area;
+};
+
+DygraphLayout.prototype.setAnnotations = function(ann) {
+  // The Dygraph object's annotations aren't parsed. We parse them here and
+  // save a copy. If there is no parser, then the user must be using raw format.
+  this.annotations = [];
+  var parse = this.attr_('xValueParser') || function(x) { return x; };
+  for (var i = 0; i < ann.length; i++) {
+    var a = {};
+    if (!ann[i].xval && ann[i].x === undefined) {
+      this.dygraph_.error("Annotations must have an 'x' property");
+      return;
+    }
+    if (ann[i].icon &&
+        !(ann[i].hasOwnProperty('width') &&
+          ann[i].hasOwnProperty('height'))) {
+      this.dygraph_.error("Must set width and height when setting " +
+                          "annotation.icon property");
+      return;
+    }
+    Dygraph.update(a, ann[i]);
+    if (!a.xval) a.xval = parse(a.x);
+    this.annotations.push(a);
+  }
+};
+
+DygraphLayout.prototype.setXTicks = function(xTicks) {
+  this.xTicks_ = xTicks;
+};
+
+// TODO(danvk): add this to the Dygraph object's API or move it into Layout.
+DygraphLayout.prototype.setYAxes = function (yAxes) {
+  this.yAxes_ = yAxes;
+};
+
+DygraphLayout.prototype.evaluate = function() {
+  this._evaluateLimits();
+  this._evaluateLineCharts();
+  this._evaluateLineTicks();
+  this._evaluateAnnotations();
+};
+
+DygraphLayout.prototype._evaluateLimits = function() {
+  var xlimits = this.dygraph_.xAxisRange();
+  this.minxval = xlimits[0];
+  this.maxxval = xlimits[1];
+  var xrange = xlimits[1] - xlimits[0];
+  this.xscale = (xrange !== 0 ? 1 / xrange : 1.0);
+
+  for (var i = 0; i < this.yAxes_.length; i++) {
+    var axis = this.yAxes_[i];
+    axis.minyval = axis.computedValueRange[0];
+    axis.maxyval = axis.computedValueRange[1];
+    axis.yrange = axis.maxyval - axis.minyval;
+    axis.yscale = (axis.yrange !== 0 ? 1.0 / axis.yrange : 1.0);
+
+    if (axis.g.attr_("logscale")) {
+      axis.ylogrange = Dygraph.log10(axis.maxyval) - Dygraph.log10(axis.minyval);
+      axis.ylogscale = (axis.ylogrange !== 0 ? 1.0 / axis.ylogrange : 1.0);
+      if (!isFinite(axis.ylogrange) || isNaN(axis.ylogrange)) {
+        axis.g.error('axis ' + i + ' of graph at ' + axis.g +
+            ' can\'t be displayed in log scale for range [' +
+            axis.minyval + ' - ' + axis.maxyval + ']');
+      }
+    }
+  }
+};
+
+DygraphLayout._calcYNormal = function(axis, value, logscale) {
+  if (logscale) {
+    return 1.0 - ((Dygraph.log10(value) - Dygraph.log10(axis.minyval)) * axis.ylogscale);
+  } else {
+    return 1.0 - ((value - axis.minyval) * axis.yscale);
+  }
+};
+
+DygraphLayout.prototype._evaluateLineCharts = function() {
+  var connectSeparated = this.attr_('connectSeparatedPoints');
+  var isStacked = this.attr_("stackedGraph");
+  var hasBars = this.attr_('errorBars') || this.attr_('customBars');
+
+  for (var setIdx = 0; setIdx < this.points.length; setIdx++) {
+    var points = this.points[setIdx];
+    var setName = this.setNames[setIdx];
+    var axis = this.dygraph_.axisPropertiesForSeries(setName);
+    // TODO (konigsberg): use optionsForAxis instead.
+    var logscale = this.dygraph_.attributes_.getForSeries("logscale", setName);
+
+    for (var j = 0; j < points.length; j++) {
+      var point = points[j];
+
+      // Range from 0-1 where 0 represents left and 1 represents right.
+      point.x = (point.xval - this.minxval) * this.xscale;
+      // Range from 0-1 where 0 represents top and 1 represents bottom
+      var yval = point.yval;
+      if (isStacked) {
+        point.y_stacked = DygraphLayout._calcYNormal(
+            axis, point.yval_stacked, logscale);
+        if (yval !== null && !isNaN(yval)) {
+          yval = point.yval_stacked;
+        }
+      }
+      if (yval === null) {
+        yval = NaN;
+        if (!connectSeparated) {
+          point.yval = NaN;
+        }
+      }
+      point.y = DygraphLayout._calcYNormal(axis, yval, logscale);
+
+      if (hasBars) {
+        point.y_top = DygraphLayout._calcYNormal(
+            axis, yval - point.yval_minus, logscale);
+        point.y_bottom = DygraphLayout._calcYNormal(
+            axis, yval + point.yval_plus, logscale);
+      }
+    }
+  }
+};
+
+/**
+ * Optimized replacement for parseFloat, which was way too slow when almost
+ * all values were type number, with few edge cases, none of which were strings.
+ */
+DygraphLayout.parseFloat_ = function(val) {
+  // parseFloat(null) is NaN
+  if (val === null) {
+    return NaN;
+  }
+
+  // Assume it's a number or NaN. If it's something else, I'll be shocked.
+  return val;
+};
+
+DygraphLayout.prototype._evaluateLineTicks = function() {
+  var i, tick, label, pos;
+  this.xticks = [];
+  for (i = 0; i < this.xTicks_.length; i++) {
+    tick = this.xTicks_[i];
+    label = tick.label;
+    pos = this.xscale * (tick.v - this.minxval);
+    if ((pos >= 0.0) && (pos <= 1.0)) {
+      this.xticks.push([pos, label]);
+    }
+  }
+
+  this.yticks = [];
+  for (i = 0; i < this.yAxes_.length; i++ ) {
+    var axis = this.yAxes_[i];
+    for (var j = 0; j < axis.ticks.length; j++) {
+      tick = axis.ticks[j];
+      label = tick.label;
+      pos = this.dygraph_.toPercentYCoord(tick.v, i);
+      if ((pos >= 0.0) && (pos <= 1.0)) {
+        this.yticks.push([i, pos, label]);
+      }
+    }
+  }
+};
+
+DygraphLayout.prototype._evaluateAnnotations = function() {
+  // Add the annotations to the point to which they belong.
+  // Make a map from (setName, xval) to annotation for quick lookups.
+  var i;
+  var annotations = {};
+  for (i = 0; i < this.annotations.length; i++) {
+    var a = this.annotations[i];
+    annotations[a.xval + "," + a.series] = a;
+  }
+
+  this.annotated_points = [];
+
+  // Exit the function early if there are no annotations.
+  if (!this.annotations || !this.annotations.length) {
+    return;
+  }
+
+  // TODO(antrob): loop through annotations not points.
+  for (var setIdx = 0; setIdx < this.points.length; setIdx++) {
+    var points = this.points[setIdx];
+    for (i = 0; i < points.length; i++) {
+      var p = points[i];
+      var k = p.xval + "," + p.name;
+      if (k in annotations) {
+        p.annotation = annotations[k];
+        this.annotated_points.push(p);
+      }
+    }
+  }
+};
+
+/**
+ * Convenience function to remove all the data sets from a graph
+ */
+DygraphLayout.prototype.removeAllDatasets = function() {
+  delete this.points;
+  delete this.setNames;
+  delete this.setPointsLengths;
+  delete this.setPointsOffsets;
+  this.points = [];
+  this.setNames = [];
+  this.setPointsLengths = [];
+  this.setPointsOffsets = [];
+};