From fac494f30a31bb8fff4d688c4b9964cbc8741318 Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <dan@dygraphs.com>
Date: Mon, 6 Jun 2011 09:33:55 -0400
Subject: [PATCH] fix merge issue

---
 dygraph-canvas.js | 258 ------------------------------------------------------
 1 file changed, 258 deletions(-)

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 04280c4..4606dfb 100644
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -12,266 +12,8 @@
  */
 
 /**
- * This class determines the charting area (in pixel coordinates), maps the
- * percentage coordinates in the DygraphLayout to pixels and draws them.
- * It's also responsible for creating chart DOM elements, i.e. annotations,
- * tick mark labels, the title and the x/y-axis labels.
- * This class is based on PlotKit.CanvasRenderer.
- *
- * Creates a new DygraphLayout object.
- * @return {Object} The DygraphLayout object
- */
-DygraphLayout = function(dygraph) {
-  this.dygraph_ = dygraph;
-  this.datasets = new Array();
-  this.annotations = new Array();
-  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);
-};
-
-DygraphLayout.prototype.addDataset = function(setname, set_xy) {
-  this.datasets[setname] = set_xy;
-};
-
-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) {
-      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.dygraph_);
-    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.setDateWindow = function(dateWindow) {
-  this.dateWindow_ = dateWindow;
-};
-
-DygraphLayout.prototype.evaluate = function() {
-  this._evaluateLimits();
-  this._evaluateLineCharts();
-  this._evaluateLineTicks();
-  this._evaluateAnnotations();
-};
-
-DygraphLayout.prototype._evaluateLimits = function() {
-  this.minxval = this.maxxval = null;
-  if (this.dateWindow_) {
-    this.minxval = this.dateWindow_[0];
-    this.maxxval = this.dateWindow_[1];
-  } else {
-    for (var name in this.datasets) {
-      if (!this.datasets.hasOwnProperty(name)) continue;
-      var series = this.datasets[name];
-      if (series.length > 1) {
-        var x1 = series[0][0];
-        if (!this.minxval || x1 < this.minxval) this.minxval = x1;
-  
-        var x2 = series[series.length - 1][0];
-        if (!this.maxxval || x2 > this.maxxval) this.maxxval = x2;
-      }
-    }
-  }
-  this.xrange = this.maxxval - this.minxval;
-  this.xscale = (this.xrange != 0 ? 1/this.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.prototype._evaluateLineCharts = function() {
-  // add all the rects
-  this.points = new Array();
-  for (var setName in this.datasets) {
-    if (!this.datasets.hasOwnProperty(setName)) continue;
-
-    var dataset = this.datasets[setName];
-    var axis = this.dygraph_.axisPropertiesForSeries(setName);
-
-    for (var j = 0; j < dataset.length; j++) {
-      var item = dataset[j];
-
-      var yval;
-      if (axis.logscale) {
-        yval = 1.0 - ((Dygraph.log10(parseFloat(item[1])) - Dygraph.log10(axis.minyval)) * axis.ylogscale); // really should just be yscale.
-      } else {
-        yval = 1.0 - ((parseFloat(item[1]) - axis.minyval) * axis.yscale);
-      }
-      var point = {
-        // TODO(danvk): here
-        x: ((parseFloat(item[0]) - this.minxval) * this.xscale),
-        y: yval,
-        xval: parseFloat(item[0]),
-        yval: parseFloat(item[1]),
-        name: setName
-      };
-
-      this.points.push(point);
-    }
-  }
-};
-
-DygraphLayout.prototype._evaluateLineTicks = function() {
-  this.xticks = new Array();
-  for (var i = 0; i < this.xTicks_.length; i++) {
-    var tick = this.xTicks_[i];
-    var label = tick.label;
-    var pos = this.xscale * (tick.v - this.minxval);
-    if ((pos >= 0.0) && (pos <= 1.0)) {
-      this.xticks.push([pos, label]);
-    }
-  }
-
-  this.yticks = new Array();
-  for (var i = 0; i < this.yAxes_.length; i++ ) {
-    var axis = this.yAxes_[i];
-    for (var j = 0; j < axis.ticks.length; j++) {
-      var tick = axis.ticks[j];
-      var label = tick.label;
-      var pos = this.dygraph_.toPercentYCoord(tick.v, i);
-      if ((pos >= 0.0) && (pos <= 1.0)) {
-        this.yticks.push([i, pos, label]);
-      }
-    }
-  }
-};
-
-
-/**
- * Behaves the same way as PlotKit.Layout, but also copies the errors
- * @private
- */
-DygraphLayout.prototype.evaluateWithError = function() {
-  this.evaluate();
-  if (!(this.attr_('errorBars') || this.attr_('customBars'))) return;
-
-  // Copy over the error terms
-  var i = 0; // index in this.points
-  for (var setName in this.datasets) {
-    if (!this.datasets.hasOwnProperty(setName)) continue;
-    var j = 0;
-    var dataset = this.datasets[setName];
-    for (var j = 0; j < dataset.length; j++, i++) {
-      var item = dataset[j];
-      var xv = parseFloat(item[0]);
-      var yv = parseFloat(item[1]);
-
-      if (xv == this.points[i].xval &&
-          yv == this.points[i].yval) {
-        this.points[i].errorMinus = parseFloat(item[2]);
-        this.points[i].errorPlus = parseFloat(item[3]);
-      }
-    }
-  }
-};
-
-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 annotations = {};
-  for (var i = 0; i < this.annotations.length; i++) {
-    var a = this.annotations[i];
-    annotations[a.xval + "," + a.series] = a;
-  }
-
-  this.annotated_points = [];
-  for (var i = 0; i < this.points.length; i++) {
-    var p = this.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.datasets;
-  this.datasets = new Array();
-};
-
-/**
- * Return a copy of the point at the indicated index, with its yval unstacked.
- * @param int index of point in layout_.points
- */
-DygraphLayout.prototype.unstackPointAtIndex = function(idx) {
-  var point = this.points[idx];
-  
-  // Clone the point since we modify it
-  var unstackedPoint = {};  
-  for (var i in point) {
-    unstackedPoint[i] = point[i];
-  }
-  
-  if (!this.attr_("stackedGraph")) {
-    return unstackedPoint;
-  }
-  
-  // The unstacked yval is equal to the current yval minus the yval of the 
-  // next point at the same xval.
-  for (var i = idx+1; i < this.points.length; i++) {
-    if (this.points[i].xval == point.xval) {
-      unstackedPoint.yval -= this.points[i].yval; 
-      break;
-    }
-  }
-  
-  return unstackedPoint;
-}  
-
-/**
  * The DygraphCanvasRenderer class does the actual rendering of the chart onto
  * a canvas. It's based on PlotKit.CanvasRenderer.
->>>>>>> master
  * @param {Object} element The canvas to attach to
  * @param {Object} elementContext The 2d context of the canvas (injected so it
  * can be mocked for testing.)
-- 
2.7.4