X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=plugins%2Frange-selector.js;h=6819eea30cea7fbb8cc4f35bee5a6b1f3562c441;hb=79cb28dd681a26f9e7824f61d95c7458ca5104e7;hp=09c98bb8f214c8b06af7b8db4d959a1a89489240;hpb=e1242d5b540803a1848481ce75932a85693de74c;p=dygraphs.git diff --git a/plugins/range-selector.js b/plugins/range-selector.js index 09c98bb..6819eea 100644 --- a/plugins/range-selector.js +++ b/plugins/range-selector.js @@ -12,7 +12,6 @@ Dygraph.Plugins.RangeSelector = (function() { -/*jshint globalstrict: true */ /*global Dygraph:false */ "use strict"; @@ -29,7 +28,6 @@ rangeSelector.prototype.toString = function() { rangeSelector.prototype.activate = function(dygraph) { this.dygraph_ = dygraph; - this.isUsingExcanvas_ = dygraph.isUsingExcanvas_; if (this.getOption_('showRangeSelector')) { this.createInterface_(); } @@ -45,19 +43,18 @@ rangeSelector.prototype.destroy = function() { this.fgcanvas_ = null; this.leftZoomHandle_ = null; this.rightZoomHandle_ = null; - this.iePanOverlay_ = null; }; //------------------------------------------------------------------ // Private methods //------------------------------------------------------------------ -rangeSelector.prototype.getOption_ = function(name) { - return this.dygraph_.getOption(name); +rangeSelector.prototype.getOption_ = function(name, opt_series) { + return this.dygraph_.getOption(name, opt_series); }; rangeSelector.prototype.setDefaultOption_ = function(name, value) { - return this.dygraph_.attrs_[name] = value; + this.dygraph_.attrs_[name] = value; }; /** @@ -66,15 +63,12 @@ rangeSelector.prototype.setDefaultOption_ = function(name, value) { */ rangeSelector.prototype.createInterface_ = function() { this.createCanvases_(); - if (this.isUsingExcanvas_) { - this.createIEPanOverlay_(); - } this.createZoomHandles_(); this.initInteraction_(); // Range selector and animatedZooms have a bad interaction. See issue 359. if (this.getOption_('animatedZooms')) { - Dygraph.warn('Animated zooms and range selector are not compatible; disabling animatedZooms.'); + console.warn('Animated zooms and range selector are not compatible; disabling animatedZooms.'); this.dygraph_.updateOptions({animatedZooms: false}, true); } @@ -166,17 +160,23 @@ rangeSelector.prototype.updateVisibility_ = function() { * Resizes the range selector. */ rangeSelector.prototype.resize_ = function() { - function setElementRect(canvas, rect) { + function setElementRect(canvas, context, rect) { + var canvasScale = Dygraph.getContextPixelRatio(context); + canvas.style.top = rect.y + 'px'; canvas.style.left = rect.x + 'px'; - canvas.width = rect.w; - canvas.height = rect.h; - canvas.style.width = canvas.width + 'px'; // for IE - canvas.style.height = canvas.height + 'px'; // for IE + canvas.width = rect.w * canvasScale; + canvas.height = rect.h * canvasScale; + canvas.style.width = rect.w + 'px'; + canvas.style.height = rect.h + 'px'; + + if(canvasScale != 1) { + context.scale(canvasScale, canvasScale); + } } var plotArea = this.dygraph_.layout_.getPlotArea(); - + var xAxisLabelHeight = 0; if (this.dygraph_.getOptionForAxis('drawAxis', 'x')) { xAxisLabelHeight = this.getOption_('xAxisHeight') || (this.getOption_('axisLabelFontSize') + 2 * this.getOption_('axisTickSize')); @@ -188,8 +188,8 @@ rangeSelector.prototype.resize_ = function() { h: this.getOption_('rangeSelectorHeight') }; - setElementRect(this.bgcanvas_, this.canvasRect_); - setElementRect(this.fgcanvas_, this.canvasRect_); + setElementRect(this.bgcanvas_, this.bgcanvas_ctx_, this.canvasRect_); + setElementRect(this.fgcanvas_, this.fgcanvas_ctx_, this.canvasRect_); }; /** @@ -213,20 +213,6 @@ rangeSelector.prototype.createCanvases_ = function() { /** * @private - * Creates overlay divs for IE/Excanvas so that mouse events are handled properly. - */ -rangeSelector.prototype.createIEPanOverlay_ = function() { - this.iePanOverlay_ = document.createElement("div"); - this.iePanOverlay_.style.position = 'absolute'; - this.iePanOverlay_.style.backgroundColor = 'white'; - this.iePanOverlay_.style.filter = 'alpha(opacity=0)'; - this.iePanOverlay_.style.display = 'none'; - this.iePanOverlay_.style.cursor = 'move'; - this.fgcanvas_.appendChild(this.iePanOverlay_); -}; - -/** - * @private * Creates the zoom handle elements. */ rangeSelector.prototype.createZoomHandles_ = function() { @@ -268,12 +254,12 @@ rangeSelector.prototype.createZoomHandles_ = function() { */ rangeSelector.prototype.initInteraction_ = function() { var self = this; - var topElem = this.isIE_ ? document : window; + var topElem = document; var clientXLast = 0; var handle = null; var isZooming = false; var isPanning = false; - var dynamic = !this.isMobileDevice_ && !this.isUsingExcanvas_; + var dynamic = !this.isMobileDevice_; // We cover iframes during mouse interactions. See comments in // dygraph-utils.js for more info on why this is a good idea. @@ -338,7 +324,7 @@ rangeSelector.prototype.initInteraction_ = function() { handle.style.left = (newPos - halfHandleWidth) + 'px'; self.drawInteractiveLayer_(); - // Zoom on the fly (if not using excanvas). + // Zoom on the fly. if (dynamic) { doZoom(); } @@ -355,7 +341,7 @@ rangeSelector.prototype.initInteraction_ = function() { Dygraph.removeEvent(topElem, 'mouseup', onZoomEnd); self.fgcanvas_.style.cursor = 'default'; - // If using excanvas, Zoom now. + // If on a slower device, zoom now. if (!dynamic) { doZoom(); } @@ -378,15 +364,11 @@ rangeSelector.prototype.initInteraction_ = function() { }; isMouseInPanZone = function(e) { - if (self.isUsingExcanvas_) { - return e.srcElement == self.iePanOverlay_; - } else { - var rect = self.leftZoomHandle_.getBoundingClientRect(); - var leftHandleClientX = rect.left + rect.width/2; - rect = self.rightZoomHandle_.getBoundingClientRect(); - var rightHandleClientX = rect.left + rect.width/2; - return (e.clientX > leftHandleClientX && e.clientX < rightHandleClientX); - } + var rect = self.leftZoomHandle_.getBoundingClientRect(); + var leftHandleClientX = rect.left + rect.width/2; + rect = self.rightZoomHandle_.getBoundingClientRect(); + var rightHandleClientX = rect.left + rect.width/2; + return (e.clientX > leftHandleClientX && e.clientX < rightHandleClientX); }; onPanStart = function(e) { @@ -436,7 +418,7 @@ rangeSelector.prototype.initInteraction_ = function() { self.rightZoomHandle_.style.left = (rightHandlePos - halfHandleWidth) + 'px'; self.drawInteractiveLayer_(); - // Do pan on the fly (if not using excanvas). + // Do pan on the fly. if (dynamic) { doPan(); } @@ -450,7 +432,7 @@ rangeSelector.prototype.initInteraction_ = function() { isPanning = false; Dygraph.removeEvent(topElem, 'mousemove', onPan); Dygraph.removeEvent(topElem, 'mouseup', onPanEnd); - // If using excanvas, do pan now. + // If on a slower device, do pan now. if (!dynamic) { doPan(); } @@ -519,12 +501,8 @@ rangeSelector.prototype.initInteraction_ = function() { this.dygraph_.addAndTrackEvent(this.leftZoomHandle_, dragStartEvent, onZoomStart); this.dygraph_.addAndTrackEvent(this.rightZoomHandle_, dragStartEvent, onZoomStart); - if (this.isUsingExcanvas_) { - this.dygraph_.addAndTrackEvent(this.iePanOverlay_, 'mousedown', onPanStart); - } else { - this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousedown', onPanStart); - this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousemove', onCanvasHover); - } + this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousedown', onPanStart); + this.dygraph_.addAndTrackEvent(this.fgcanvas_, 'mousemove', onCanvasHover); // Touch events if (this.hasTouchInterface_) { @@ -541,11 +519,11 @@ rangeSelector.prototype.initInteraction_ = function() { rangeSelector.prototype.drawStaticLayer_ = function() { var ctx = this.bgcanvas_ctx_; ctx.clearRect(0, 0, this.canvasRect_.w, this.canvasRect_.h); - // try { + try { this.drawMiniPlot_(); - // } catch(ex) { - // Dygraph.warn(ex); - // } + } catch(ex) { + console.warn(ex); + } var margin = 0.5; this.bgcanvas_ctx_.lineWidth = 1; @@ -565,6 +543,7 @@ rangeSelector.prototype.drawStaticLayer_ = function() { */ rangeSelector.prototype.drawMiniPlot_ = function() { var fillStyle = this.getOption_('rangeSelectorPlotFillColor'); + var fillGradientStyle = this.getOption_('rangeSelectorPlotFillGradientColor'); var strokeStyle = this.getOption_('rangeSelectorPlotStrokeColor'); if (!fillStyle && !strokeStyle) { return; @@ -594,6 +573,13 @@ rangeSelector.prototype.drawMiniPlot_ = function() { var dataPoint = combinedSeriesData.data[i]; var x = ((dataPoint[0] !== null) ? ((dataPoint[0] - xExtremes[0])*xFact) : NaN); var y = ((dataPoint[1] !== null) ? (canvasHeight - (dataPoint[1] - combinedSeriesData.yMin)*yFact) : NaN); + + // Skip points that don't change the x-value. Overly fine-grained points + // can cause major slowdowns with the ctx.fill() call below. + if (!stepPlot && prevX !== null && Math.round(x) == Math.round(prevX)) { + continue; + } + if (isFinite(x) && isFinite(y)) { if(prevX === null) { ctx.lineTo(x, canvasHeight); @@ -623,7 +609,9 @@ rangeSelector.prototype.drawMiniPlot_ = function() { if (fillStyle) { var lingrad = this.bgcanvas_ctx_.createLinearGradient(0, 0, 0, canvasHeight); - lingrad.addColorStop(0, 'white'); + if (fillGradientStyle) { + lingrad.addColorStop(0, fillGradientStyle); + } lingrad.addColorStop(1, fillStyle); this.bgcanvas_ctx_.fillStyle = lingrad; ctx.fill(); @@ -645,26 +633,35 @@ rangeSelector.prototype.drawMiniPlot_ = function() { */ rangeSelector.prototype.computeCombinedSeriesAndLimits_ = function() { var g = this.dygraph_; - var data = g.rawData_; var logscale = this.getOption_('logscale'); + var i; + + // Select series to combine. By default, all series are combined. + var numColumns = g.numColumns(); + var labels = g.getLabels(); + var includeSeries = new Array(numColumns); + var anySet = false; + for (i = 1; i < numColumns; i++) { + var include = this.getOption_('showInRangeSelector', labels[i]); + includeSeries[i] = include; + if (include !== null) anySet = true; // it's set explicitly for this series + } + if (!anySet) { + for (i = 0; i < includeSeries.length; i++) includeSeries[i] = true; + } - // Create a combined series (average of all series values). - var sum; - var count; - var mutipleValues; - var i, j, k; - var xVal, yVal; - + // Create a combined series (average of selected series values). // TODO(danvk): short-circuit if there's only one series. var rolledSeries = []; var dataHandler = g.dataHandler_; var options = g.attributes_; - for (var i = 1; i < g.numColumns(); i++) { + for (i = 1; i < g.numColumns(); i++) { + if (!includeSeries[i]) continue; var series = dataHandler.extractSeries(g.rawData_, i, options); if (g.rollPeriod() > 1) { series = dataHandler.rollingAverage(series, g.rollPeriod(), options); } - + rolledSeries.push(series); } @@ -672,7 +669,7 @@ rangeSelector.prototype.computeCombinedSeriesAndLimits_ = function() { for (i = 0; i < rolledSeries[0].length; i++) { var sum = 0; var count = 0; - for (j = 0; j < rolledSeries.length; j++) { + for (var j = 0; j < rolledSeries.length; j++) { var y = rolledSeries[j][i][1]; if (y === null || isNaN(y)) continue; count++; @@ -685,7 +682,7 @@ rangeSelector.prototype.computeCombinedSeriesAndLimits_ = function() { var yMin = Number.MAX_VALUE; var yMax = -Number.MAX_VALUE; for (i = 0; i < combinedSeries.length; i++) { - yVal = combinedSeries[i][1]; + var yVal = combinedSeries[i][1]; if (yVal !== null && isFinite(yVal) && (!logscale || yVal > 0)) { yMin = Math.min(yMin, yVal); yMax = Math.max(yMax, yVal); @@ -760,9 +757,6 @@ rangeSelector.prototype.drawInteractiveLayer_ = function() { ctx.lineTo(width, height); ctx.lineTo(width, margin); ctx.stroke(); - if (this.iePanOverlay_) { - this.iePanOverlay_.style.display = 'none'; - } } else { var leftHandleCanvasPos = Math.max(margin, zoomHandleStatus.leftHandlePos - this.canvasRect_.x); var rightHandleCanvasPos = Math.min(width, zoomHandleStatus.rightHandlePos - this.canvasRect_.x); @@ -779,13 +773,6 @@ rangeSelector.prototype.drawInteractiveLayer_ = function() { ctx.lineTo(rightHandleCanvasPos, margin); ctx.lineTo(width, margin); ctx.stroke(); - - if (this.isUsingExcanvas_) { - this.iePanOverlay_.style.width = (rightHandleCanvasPos - leftHandleCanvasPos) + 'px'; - this.iePanOverlay_.style.left = leftHandleCanvasPos + 'px'; - this.iePanOverlay_.style.height = height + 'px'; - this.iePanOverlay_.style.display = 'inline'; - } } };