X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-canvas.js;h=f22f8586cecd242149baa56600d8733d03418d1b;hb=67076b22e2685706c23f56bed8ee41a584c20b5b;hp=66888ee81686b1bb5437e9a47541ddfdac539af5;hpb=ab5e5c7548f975820f6b469886d15ff5bc1b8477;p=dygraphs.git

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 66888ee..f22f858 100644
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -30,19 +30,25 @@ DygraphLayout.prototype.addDataset = function(setname, set_xy) {
   this.datasets[setname] = set_xy;
 };
 
-// TODO(danvk): CONTRACT remove
 DygraphLayout.prototype.setAnnotations = function(ann) {
   // The Dygraph object's annotations aren't parsed. We parse them here and
   // save a copy.
   var parse = this.attr_('xValueParser');
   for (var i = 0; i < ann.length; i++) {
     var a = {};
-    if (!ann[i].x) {
+    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]);
-    a.xval = parse(a.x);
+    if (!a.xval) a.xval = parse(a.x);
     this.annotations.push(a);
   }
 };
@@ -73,10 +79,13 @@ DygraphLayout.prototype._evaluateLimits = function() {
   this.xrange = this.maxxval - this.minxval;
   this.xscale = (this.xrange != 0 ? 1/this.xrange : 1.0);
 
-  this.minyval = this.options.yAxis[0];
-  this.maxyval = this.options.yAxis[1];
-  this.yrange = this.maxyval - this.minyval;
-  this.yscale = (this.yrange != 0 ? 1/this.yrange : 1.0);
+  for (var i = 0; i < this.options.yAxes.length; i++) {
+    var axis = this.options.yAxes[i];
+    axis.minyval = axis.valueRange[0];
+    axis.maxyval = axis.valueRange[1];
+    axis.yrange = axis.maxyval - axis.minyval;
+    axis.yscale = (axis.yrange != 0 ? 1.0 / axis.yrange : 1.0);
+  }
 };
 
 DygraphLayout.prototype._evaluateLineCharts = function() {
@@ -86,12 +95,14 @@ DygraphLayout.prototype._evaluateLineCharts = function() {
     if (!this.datasets.hasOwnProperty(setName)) continue;
 
     var dataset = this.datasets[setName];
+    var axis = this.options.yAxes[this.options.seriesToAxisMap[setName]];
+
     for (var j = 0; j < dataset.length; j++) {
       var item = dataset[j];
       var point = {
         // TODO(danvk): here
         x: ((parseFloat(item[0]) - this.minxval) * this.xscale),
-        y: 1.0 - ((parseFloat(item[1]) - this.minyval) * this.yscale),
+        y: 1.0 - ((parseFloat(item[1]) - axis.minyval) * axis.yscale),
         xval: parseFloat(item[0]),
         yval: parseFloat(item[1]),
         name: setName
@@ -121,12 +132,15 @@ DygraphLayout.prototype._evaluateLineTicks = function() {
   }
 
   this.yticks = new Array();
-  for (var i = 0; i < this.options.yTicks.length; i++) {
-    var tick = this.options.yTicks[i];
-    var label = tick.label;
-    var pos = 1.0 - (this.yscale * (tick.v - this.minyval));
-    if ((pos >= 0.0) && (pos <= 1.0)) {
-      this.yticks.push([pos, label]);
+  for (var i = 0; i < 1; i++ ) {
+    var axis = this.options.yAxes[i];
+    for (var j = 0; j < axis.ticks.length; j++) {
+      var tick = axis.ticks[j];
+      var label = tick.label;
+      var pos = 1.0 - (axis.yscale * (tick.v - axis.minyval));
+      if ((pos >= 0.0) && (pos <= 1.0)) {
+        this.yticks.push([pos, label]);
+      }
     }
   }
 };
@@ -246,6 +260,7 @@ DygraphCanvasRenderer = function(dygraph, element, layout, options) {
   this.ylabels = new Array();
   this.annotations = new Array();
 
+  // TODO(danvk): consider all axes in this computation.
   this.area = {
     x: this.options.yAxisLabelWidth + 2 * this.options.axisTickSize,
     y: 0
@@ -495,8 +510,7 @@ DygraphCanvasRenderer.prototype._renderAnnotations = function() {
     "position": "absolute",
     "fontSize": this.options.axisLabelFontSize + "px",
     "zIndex": 10,
-    "width": "20px",
-    "overflow": "hidden",
+    "overflow": "hidden"
   };
 
   var bindEvt = function(eventName, classEventName, p, self) {
@@ -514,34 +528,77 @@ DygraphCanvasRenderer.prototype._renderAnnotations = function() {
   var points = this.layout.annotated_points;
   for (var i = 0; i < points.length; i++) {
     var p = points[i];
+    if (p.canvasx < this.area.x || p.canvasx > this.area.x + this.area.w) {
+      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];
       }
     }
-    div.className = "dygraphDefaultAnnotation";
-    if (p.annotation.hasOwnProperty('cssClass')) {
-      div.className += " " + p.annotation.cssClass;
+    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));
+    }
+    div.style.left = (p.canvasx - width / 2) + "px";
+    if (a.attachAtBottom) {
+      div.style.top = (this.area.h - height - tick_height) + "px";
+    } else {
+      div.style.top = (p.canvasy - height - tick_height) + "px";
     }
-    div.appendChild(document.createTextNode(p.annotation.shortText));
-    div.style.left = (p.canvasx - 10) + "px";
-    div.style.top = p.canvasy + "px";
+    div.style.width = width + "px";
+    div.style.height = height + "px";
     div.title = p.annotation.text;
     div.style.color = this.colors[p.name];
     div.style.borderColor = this.colors[p.name];
+    a.div = div;
 
-    var self = this;
-    Dygraph.addEvent(div, 'click', function(p, self) { return function(e) {
-      if (p.annotation.hasOwnProperty('clickHandler')) {
-        p.annotation.clickHandler(p.annotation, p, self.dygraph_, e);
-      } else if (self.dygraph_.attr_('annotationClickHandler')) {
-        self.dygraph_.attr_('annotationClickHandler')(p.annotation, p, self.dygraph_, e);
-      } }; }(p, self)
-    );
+    Dygraph.addEvent(div, 'click',
+        bindEvt('clickHandler', 'annotationClickHandler', p, this));
+    Dygraph.addEvent(div, 'mouseover',
+        bindEvt('mouseOverHandler', 'annotationMouseOverHandler', p, this));
+    Dygraph.addEvent(div, 'mouseout',
+        bindEvt('mouseOutHandler', 'annotationMouseOutHandler', p, this));
+    Dygraph.addEvent(div, 'dblclick',
+        bindEvt('dblClickHandler', 'annotationDblClickHandler', p, this));
 
     this.container.appendChild(div);
     this.annotations.push(div);
+
+    var ctx = this.element.getContext("2d");
+    ctx.strokeStyle = this.colors[p.name];
+    ctx.beginPath();
+    if (!a.attachAtBottom) {
+      ctx.moveTo(p.canvasx, p.canvasy);
+      ctx.lineTo(p.canvasx, p.canvasy - 2 - tick_height);
+    } else {
+      ctx.moveTo(p.canvasx, this.area.h);
+      ctx.lineTo(p.canvasx, this.area.h - 2 - tick_height);
+    }
+    ctx.closePath();
+    ctx.stroke();
   }
 };
 
@@ -591,6 +648,8 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
 
     for (var i = 0; i < setCount; i++) {
       var setName = setNames[i];
+      var axis = this.layout.options.yAxes[
+        this.layout.options.seriesToAxisMap[setName]];
       var color = this.colors[setName];
 
       // setup graphics context
@@ -598,7 +657,7 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
       var prevX = NaN;
       var prevY = NaN;
       var prevYs = [-1, -1];
-      var yscale = this.layout.yscale;
+      var yscale = axis.yscale;
       // should be same color as the lines but only 15% opaque.
       var rgb = new RGBColor(color);
       var err_color = 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' +
@@ -646,23 +705,24 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
       ctx.fill();
     }
   } else if (fillGraph) {
-    var axisY = 1.0 + this.layout.minyval * this.layout.yscale;
-    if (axisY < 0.0) axisY = 0.0;
-    else if (axisY > 1.0) axisY = 1.0;
-    axisY = this.area.h * axisY + this.area.y;
-
     var baseline = []  // for stacked graphs: baseline for filling
 
     // process sets in reverse order (needed for stacked graphs)
     for (var i = setCount - 1; i >= 0; i--) {
       var setName = setNames[i];
       var color = this.colors[setName];
+      var axis = this.layout.options.yAxes[
+        this.layout.options.seriesToAxisMap[setName]];
+      var axisY = 1.0 + axis.minyval * axis.yscale;
+      if (axisY < 0.0) axisY = 0.0;
+      else if (axisY > 1.0) axisY = 1.0;
+      axisY = this.area.h * axisY + this.area.y;
 
       // setup graphics context
       ctx.save();
       var prevX = NaN;
       var prevYs = [-1, -1];
-      var yscale = this.layout.yscale;
+      var yscale = axis.yscale;
       // should be same color as the lines but only 15% opaque.
       var rgb = new RGBColor(color);
       var err_color = 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' +
@@ -707,13 +767,14 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
   for (var i = 0; i < setCount; i++) {
     var setName = setNames[i];
     var color = this.colors[setName];
+    var strokeWidth = this.dygraph_.attr_("strokeWidth", setName);
 
     // setup graphics context
     context.save();
     var point = this.layout.points[0];
-    var pointSize = this.dygraph_.attr_("pointSize");
+    var pointSize = this.dygraph_.attr_("pointSize", setName);
     var prevX = null, prevY = null;
-    var drawPoints = this.dygraph_.attr_("drawPoints");
+    var drawPoints = this.dygraph_.attr_("drawPoints", setName);
     var points = this.layout.points;
     for (var j = 0; j < points.length; j++) {
       var point = points[j];
@@ -731,17 +792,20 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
             prevX = point.canvasx;
             prevY = point.canvasy;
           } else {
-            ctx.beginPath();
-            ctx.strokeStyle = color;
-            ctx.lineWidth = this.options.strokeWidth;
-            ctx.moveTo(prevX, prevY);
-            if (stepPlot) {
-              ctx.lineTo(point.canvasx, prevY);
+            // TODO(danvk): figure out why this conditional is necessary.
+            if (strokeWidth) {
+              ctx.beginPath();
+              ctx.strokeStyle = color;
+              ctx.lineWidth = strokeWidth;
+              ctx.moveTo(prevX, prevY);
+              if (stepPlot) {
+                ctx.lineTo(point.canvasx, prevY);
+              }
+              prevX = point.canvasx;
+              prevY = point.canvasy;
+              ctx.lineTo(prevX, prevY);
+              ctx.stroke();
             }
-            prevX = point.canvasx;
-            prevY = point.canvasy;
-            ctx.lineTo(prevX, prevY);
-            ctx.stroke();
           }
 
           if (drawPoints || isIsolated) {