* @private
*/
Dygraph.prototype.__init__ = function(div, file, attrs) {
+ // Hack for IE: if we're using excanvas and the document hasn't finished
+ // loading yet (and hence may not have initialized whatever it needs to
+ // initialize), then keep calling this routine periodically until it has.
+ if (/MSIE/.test(navigator.userAgent) && !window.opera &&
+ typeof(G_vmlCanvasManager) != 'undefined' &&
+ document.readyState != 'complete') {
+ var self = this;
+ setTimeout(function() { self.__init__(div, file, attrs) }, 100);
+ }
+
// Support two-argument constructor
if (attrs == null) { attrs = {}; }
this.is_initial_draw_ = true;
this.annotations_ = [];
+ // Zoomed indicators - These indicate when the graph has been zoomed and on what axis.
+ this.zoomed = false;
+ this.zoomedX = false;
+ this.zoomedY = false;
+
// Clear the div. This ensure that, if multiple dygraphs are passed the same
// div, then only one will be drawn.
div.innerHTML = "";
// If the div isn't already sized then inherit from our attrs or
// give it a default size.
if (div.style.width == '') {
- div.style.width = attrs.width || Dygraph.DEFAULT_WIDTH + "px";
+ div.style.width = (attrs.width || Dygraph.DEFAULT_WIDTH) + "px";
}
if (div.style.height == '') {
- div.style.height = attrs.height || Dygraph.DEFAULT_HEIGHT + "px";
+ div.style.height = (attrs.height || Dygraph.DEFAULT_HEIGHT) + "px";
}
this.width_ = parseInt(div.style.width, 10);
this.height_ = parseInt(div.style.height, 10);
var area = this.plotter_.area;
var div = this.attr_("labelsDiv");
- div.style.left = area.x + area.w - this.attr_("labelsDivWidth") + "px";
+ div.style.left = area.x + area.w - this.attr_("labelsDivWidth") - 1 + "px";
};
/**
// Track the beginning of drag events
Dygraph.addEvent(this.mouseEventElement_, 'mousedown', function(event) {
+ // prevents mouse drags from selecting page text.
+ if (event.preventDefault) {
+ event.preventDefault(); // Firefox, Chrome, etc.
+ } else {
+ event.returnValue = false; // IE
+ event.cancelBubble = true;
+ }
+
px = Dygraph.findPosX(self.canvas_);
py = Dygraph.findPosY(self.canvas_);
dragStartX = getX(event);
*/
Dygraph.prototype.doZoomXDates_ = function(minDate, maxDate) {
this.dateWindow_ = [minDate, maxDate];
+ this.zoomed = true;
+ this.zoomedX = true;
this.drawGraph_();
if (this.attr_("zoomCallback")) {
var yRange = this.yAxisRange();
valueRanges.push([low[1], hi[1]]);
}
+ this.zoomed = true;
+ this.zoomedY = true;
this.drawGraph_();
if (this.attr_("zoomCallback")) {
var xRange = this.xAxisRange();
- this.attr_("zoomCallback")(xRange[0], xRange[1], this.yAxisRanges());
+ var yRange = this.yAxisRange();
+ this.attr_("zoomCallback")(xRange[0], xRange[1], yRange[0], yRange[1]);
}
};
if (dirty) {
// Putting the drawing operation before the callback because it resets
// yAxisRange.
+ this.zoomed = false;
+ this.zoomedX = false;
+ this.zoomedY = false;
this.drawGraph_();
if (this.attr_("zoomCallback")) {
var minDate = this.rawData_[0][0];
var minDist = 1e+100;
var idx = -1;
for (var i = 0; i < points.length; i++) {
+ var point = points[i];
+ if (point == null) continue;
var dist = Math.abs(points[i].canvasx - canvasx);
if (dist > minDist) continue;
minDist = dist;
}
if (idx >= 0) lastx = points[idx].xval;
// Check that you can really highlight the last day's data
- if (canvasx > points[points.length-1].canvasx)
+ var last = points[points.length-1];
+ if (last != null && canvasx > last.canvasx)
lastx = points[points.length-1].xval;
// Extract the points we've selected
var px = this.lastx_;
if (px !== null && lastx != px) {
// only fire if the selected point has changed.
- this.attr_("highlightCallback")(event, lastx, this.selPoints_);
+ this.attr_("highlightCallback")(event, lastx, this.selPoints_, this.idxToRow_(idx));
}
}
};
/**
+ * Transforms layout_.points index into data row number.
+ * @param int layout_.points index
+ * @return int row number, or -1 if none could be found.
+ * @private
+ */
+Dygraph.prototype.idxToRow_ = function(idx) {
+ if (idx < 0) return -1;
+
+ for (var i in this.layout_.datasets) {
+ if (idx < this.layout_.datasets[i].length) {
+ return this.boundaryIds_[0][0]+idx;
+ }
+ idx -= this.layout_.datasets[i].length;
+ }
+ return -1;
+};
+
+/**
* Draw dots over the selectied points in the data series. This function
* takes care of cleanup of previously-drawn dots.
* @private
* indices are into the axes_ array.
*/
Dygraph.prototype.computeYAxes_ = function() {
+ var valueWindow;
+ if (this.axes_ != undefined) {
+ // Preserve valueWindow settings.
+ valueWindow = [];
+ for (var index = 0; index < this.axes_.length; index++) {
+ valueWindow.push(this.axes_[index].valueWindow);
+ }
+ }
+
this.axes_ = [{}]; // always have at least one y-axis.
this.seriesToAxisMap_ = {};
// Get a list of series names.
var labels = this.attr_("labels");
- var series = [];
+ var series = {};
for (var i = 1; i < labels.length; i++) series[labels[i]] = (i - 1);
// all options which could be applied per-axis:
this.seriesToAxisMap_[seriesName] = idx;
}
}
+
+ // Now we remove series from seriesToAxisMap_ which are not visible. We do
+ // this last so that hiding the first series doesn't destroy the axis
+ // properties of the primary axis.
+ var seriesToAxisFiltered = {};
+ var vis = this.visibility();
+ for (var i = 1; i < labels.length; i++) {
+ var s = labels[i];
+ if (vis[i - 1]) seriesToAxisFiltered[s] = this.seriesToAxisMap_[s];
+ }
+ this.seriesToAxisMap_ = seriesToAxisFiltered;
+
+ if (valueWindow != undefined) {
+ // Restore valueWindow settings.
+ for (var index = 0; index < valueWindow.length; index++) {
+ this.axes_[index].valueWindow = valueWindow[index];
+ }
+ }
};
/**
// This is a user-set value range for this axis.
axis.computedValueRange = [axis.valueRange[0], axis.valueRange[1]];
} else {
- // Calcuate the extremes of extremes.
+ // Calculate the extremes of extremes.
var series = seriesForAxis[i];
var minY = Infinity; // extremes[series[0]][0];
var maxY = -Infinity; // extremes[series[0]][1];
*/
Dygraph.prototype.setVisibility = function(num, value) {
var x = this.visibility();
- if (num < 0 && num >= x.length) {
+ if (num < 0 || num >= x.length) {
this.warn("invalid series number in setVisibility: " + num);
} else {
x[num] = value;
Dygraph.addAnnotationRule = function() {
if (Dygraph.addedAnnotationCSS) return;
- var mysheet;
- if (document.styleSheets.length > 0) {
- mysheet = document.styleSheets[0];
- } else {
- var styleSheetElement = document.createElement("style");
- styleSheetElement.type = "text/css";
- document.getElementsByTagName("head")[0].appendChild(styleSheetElement);
- for(i = 0; i < document.styleSheets.length; i++) {
- if (document.styleSheets[i].disabled) continue;
- mysheet = document.styleSheets[i];
- }
- }
-
var rule = "border: 1px solid black; " +
"background-color: white; " +
"text-align: center;";
- if (mysheet.insertRule) { // Firefox
- var idx = mysheet.cssRules ? mysheet.cssRules.length : 0;
- mysheet.insertRule(".dygraphDefaultAnnotation { " + rule + " }", idx);
- } else if (mysheet.addRule) { // IE
- mysheet.addRule(".dygraphDefaultAnnotation", rule);
+
+ var styleSheetElement = document.createElement("style");
+ styleSheetElement.type = "text/css";
+ document.getElementsByTagName("head")[0].appendChild(styleSheetElement);
+
+ // Find the first style sheet that we can access.
+ // We may not add a rule to a style sheet from another domain for security
+ // reasons. This sometimes comes up when using gviz, since the Google gviz JS
+ // adds its own style sheets from google.com.
+ for (var i = 0; i < document.styleSheets.length; i++) {
+ if (document.styleSheets[i].disabled) continue;
+ var mysheet = document.styleSheets[i];
+ try {
+ if (mysheet.insertRule) { // Firefox
+ var idx = mysheet.cssRules ? mysheet.cssRules.length : 0;
+ mysheet.insertRule(".dygraphDefaultAnnotation { " + rule + " }", idx);
+ } else if (mysheet.addRule) { // IE
+ mysheet.addRule(".dygraphDefaultAnnotation", rule);
+ }
+ Dygraph.addedAnnotationCSS = true;
+ return;
+ } catch(err) {
+ // Was likely a security exception.
+ }
}
- Dygraph.addedAnnotationCSS = true;
+ this.warn("Unable to add default annotation CSS rule; display may be off.");
}
/**
}
Dygraph.GVizChart.prototype.draw = function(data, options) {
+ // Clear out any existing dygraph.
+ // TODO(danvk): would it make more sense to simply redraw using the current
+ // date_graph object?
this.container.innerHTML = '';
+ if (typeof(this.date_graph) != 'undefined') {
+ this.date_graph.destroy();
+ }
+
this.date_graph = new Dygraph(this.container, data, options);
}
projects / dygraphs.git / blobdiff