X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-canvas.js;h=ef6cf1f85afb0b5133425003426c82cfcb1be739;hb=aa000f5121ef0fd24c61510c3de32c797cd69073;hp=b647b7a6716eac0332c5424ed3bff4456d869ba7;hpb=ff91a8e4a020453eb8543f9fa866ada9eb36fd7a;p=dygraphs.git

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index b647b7a..ef6cf1f 100644
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -39,8 +39,8 @@
  * The chart canvas has already been created by the Dygraph object. The
  * renderer simply gets a drawing context.
  *
- * @param {Dyraph} dygraph The chart to which this renderer belongs.
- * @param {Canvas} element The <canvas> DOM element on which to draw.
+ * @param {Dygraph} dygraph The chart to which this renderer belongs.
+ * @param {HTMLCanvasElement} element The <canvas> DOM element on which to draw.
  * @param {CanvasRenderingContext2D} elementContext The drawing context.
  * @param {DygraphLayout} layout The chart's DygraphLayout object.
  *
@@ -58,6 +58,7 @@ var DygraphCanvasRenderer = function(dygraph, element, elementContext, layout) {
   this.width = this.element.width;
 
   // --- check whether everything is ok before we return
+  // NOTE(konigsberg): isIE is never defined in this object. Bug of some sort.
   if (!this.isIE && !(DygraphCanvasRenderer.isSupported(this.element)))
       throw "Canvas is not supported.";
 
@@ -373,7 +374,7 @@ DygraphCanvasRenderer._drawSeries = function(e,
         ctx.moveTo(point.canvasx, point.canvasy);
       }
       if (drawPoints || isIsolated) {
-        pointsOnLine.push([point.canvasx, point.canvasy]);
+        pointsOnLine.push([point.canvasx, point.canvasy, point.idx]);
       }
       prevCanvasX = point.canvasx;
       prevCanvasY = point.canvasy;
@@ -398,7 +399,7 @@ DygraphCanvasRenderer._drawPointsOnLine = function(
     var cb = pointsOnLine[idx];
     ctx.save();
     drawPointCallback(
-        e.dygraph, e.setName, ctx, cb[0], cb[1], color, pointSize);
+        e.dygraph, e.setName, ctx, cb[0], cb[1], color, pointSize, cb[2]);
     ctx.restore();
   }
 };
@@ -433,14 +434,16 @@ DygraphCanvasRenderer.prototype._updatePoints = function() {
 
 /**
  * Add canvas Actually draw the lines chart, including error bars.
- * If opt_seriesName is specified, only that series will be drawn.
- * (This is used for expedited redrawing with highlightSeriesOpts)
- * Lines are typically drawn in the non-interactive dygraph canvas. If opt_ctx
- * is specified, they can be drawn elsewhere.
  *
  * This function can only be called if DygraphLayout's points array has been
  * updated with canvas{x,y} attributes, i.e. by
  * DygraphCanvasRenderer._updatePoints.
+ *
+ * @param {string=} opt_seriesName when specified, only that series will
+ *     be drawn. (This is used for expedited redrawing with highlightSeriesOpts)
+ * @param {CanvasRenderingContext2D} opt_ctx when specified, the drawing
+ *     context.  However, lines are typically drawn on the object's
+ *     elementContext.
  * @private
  */
 DygraphCanvasRenderer.prototype._renderLineChart = function(opt_seriesName, opt_ctx) {
@@ -731,13 +734,21 @@ DygraphCanvasRenderer._fillPlotter = function(e) {
         'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + fillAlpha + ')';
     ctx.fillStyle = err_color;
     ctx.beginPath();
-    while(iter.hasNext) {
+    var last_x, is_first = true;
+    while (iter.hasNext) {
       var point = iter.next();
       if (!Dygraph.isOK(point.y)) {
         prevX = NaN;
         continue;
       }
       if (stackedGraph) {
+        if (!is_first && last_x == point.xval) {
+          continue;
+        } else {
+          is_first = false;
+          last_x = point.xval;
+        }
+
         currBaseline = baseline[point.canvasx];
         var lastY;
         if (currBaseline === undefined) {