diff options
Diffstat (limited to 'dcae_dmaapbc_webapp/src/main/webapp/static/fusion/raptor/dy3/js/plugins/legend.js')
| -rw-r--r-- | dcae_dmaapbc_webapp/src/main/webapp/static/fusion/raptor/dy3/js/plugins/legend.js | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/dcae_dmaapbc_webapp/src/main/webapp/static/fusion/raptor/dy3/js/plugins/legend.js b/dcae_dmaapbc_webapp/src/main/webapp/static/fusion/raptor/dy3/js/plugins/legend.js deleted file mode 100644 index 7406f82..0000000 --- a/dcae_dmaapbc_webapp/src/main/webapp/static/fusion/raptor/dy3/js/plugins/legend.js +++ /dev/null @@ -1,332 +0,0 @@ -/** - * @license - * Copyright 2012 Dan Vanderkam (danvdk@gmail.com) - * MIT-licensed (http://opensource.org/licenses/MIT) - */ -/*global Dygraph:false */ - -Dygraph.Plugins.Legend = (function() { -/* - -Current bits of jankiness: -- Uses two private APIs: - 1. Dygraph.optionsViewForAxis_ - 2. dygraph.plotter_.area -- Registers for a "predraw" event, which should be renamed. -- I call calculateEmWidthInDiv more often than needed. - -*/ - -/*jshint globalstrict: true */ -/*global Dygraph:false */ -"use strict"; - - -/** - * Creates the legend, which appears when the user hovers over the chart. - * The legend can be either a user-specified or generated div. - * - * @constructor - */ -var legend = function() { - this.legend_div_ = null; - this.is_generated_div_ = false; // do we own this div, or was it user-specified? -}; - -legend.prototype.toString = function() { - return "Legend Plugin"; -}; - -// (defined below) -var generateLegendHTML, generateLegendDashHTML; - -/** - * This is called during the dygraph constructor, after options have been set - * but before the data is available. - * - * Proper tasks to do here include: - * - Reading your own options - * - DOM manipulation - * - Registering event listeners - * - * @param {Dygraph} g Graph instance. - * @return {object.<string, function(ev)>} Mapping of event names to callbacks. - */ -legend.prototype.activate = function(g) { - var div; - var divWidth = g.getOption('labelsDivWidth'); - - var userLabelsDiv = g.getOption('labelsDiv'); - if (userLabelsDiv && null !== userLabelsDiv) { - if (typeof(userLabelsDiv) == "string" || userLabelsDiv instanceof String) { - div = document.getElementById(userLabelsDiv); - } else { - div = userLabelsDiv; - } - } else { - // Default legend styles. These can be overridden in CSS by adding - // "!important" after your rule, e.g. "left: 30px !important;" - var messagestyle = { - "position": "absolute", - "fontSize": "14px", - "zIndex": 10, - "width": divWidth + "px", - "top": "0px", - "left": (g.size().width - divWidth - 2) + "px", - "background": "white", - "lineHeight": "normal", - "textAlign": "left", - "overflow": "hidden"}; - - // TODO(danvk): get rid of labelsDivStyles? CSS is better. - Dygraph.update(messagestyle, g.getOption('labelsDivStyles')); - div = document.createElement("div"); - div.className = "dygraph-legend"; - for (var name in messagestyle) { - if (!messagestyle.hasOwnProperty(name)) continue; - - try { - div.style[name] = messagestyle[name]; - } catch (e) { - this.warn("You are using unsupported css properties for your " + - "browser in labelsDivStyles"); - } - } - - // TODO(danvk): come up with a cleaner way to expose this. - g.graphDiv.appendChild(div); - this.is_generated_div_ = true; - } - - this.legend_div_ = div; - this.one_em_width_ = 10; // just a guess, will be updated. - - return { - select: this.select, - deselect: this.deselect, - // TODO(danvk): rethink the name "predraw" before we commit to it in any API. - predraw: this.predraw, - didDrawChart: this.didDrawChart - }; -}; - -// Needed for dashed lines. -var calculateEmWidthInDiv = function(div) { - var sizeSpan = document.createElement('span'); - sizeSpan.setAttribute('style', 'margin: 0; padding: 0 0 0 1em; border: 0;'); - div.appendChild(sizeSpan); - var oneEmWidth=sizeSpan.offsetWidth; - div.removeChild(sizeSpan); - return oneEmWidth; -}; - -legend.prototype.select = function(e) { - var xValue = e.selectedX; - var points = e.selectedPoints; - - var html = generateLegendHTML(e.dygraph, xValue, points, this.one_em_width_); - this.legend_div_.innerHTML = html; -}; - -legend.prototype.deselect = function(e) { - // Have to do this every time, since styles might have changed. - var oneEmWidth = calculateEmWidthInDiv(this.legend_div_); - this.one_em_width_ = oneEmWidth; - - var html = generateLegendHTML(e.dygraph, undefined, undefined, oneEmWidth); - this.legend_div_.innerHTML = html; -}; - -legend.prototype.didDrawChart = function(e) { - this.deselect(e); -}; - -// Right edge should be flush with the right edge of the charting area (which -// may not be the same as the right edge of the div, if we have two y-axes. -// TODO(danvk): is any of this really necessary? Could just set "right" in "activate". -/** - * Position the labels div so that: - * - its right edge is flush with the right edge of the charting area - * - its top edge is flush with the top edge of the charting area - * @private - */ -legend.prototype.predraw = function(e) { - // Don't touch a user-specified labelsDiv. - if (!this.is_generated_div_) return; - - // TODO(danvk): only use real APIs for this. - e.dygraph.graphDiv.appendChild(this.legend_div_); - var area = e.dygraph.plotter_.area; - var labelsDivWidth = e.dygraph.getOption("labelsDivWidth"); - this.legend_div_.style.left = area.x + area.w - labelsDivWidth - 1 + "px"; - this.legend_div_.style.top = area.y + "px"; - this.legend_div_.style.width = labelsDivWidth + "px"; -}; - -/** - * Called when dygraph.destroy() is called. - * You should null out any references and detach any DOM elements. - */ -legend.prototype.destroy = function() { - this.legend_div_ = null; -}; - -/** - * @private - * Generates HTML for the legend which is displayed when hovering over the - * chart. If no selected points are specified, a default legend is returned - * (this may just be the empty string). - * @param { Number } [x] The x-value of the selected points. - * @param { [Object] } [sel_points] List of selected points for the given - * x-value. Should have properties like 'name', 'yval' and 'canvasy'. - * @param { Number } [oneEmWidth] The pixel width for 1em in the legend. Only - * relevant when displaying a legend with no selection (i.e. {legend: - * 'always'}) and with dashed lines. - */ -generateLegendHTML = function(g, x, sel_points, oneEmWidth) { - // TODO(danvk): deprecate this option in place of {legend: 'never'} - if (g.getOption('showLabelsOnHighlight') !== true) return ''; - - // If no points are selected, we display a default legend. Traditionally, - // this has been blank. But a better default would be a conventional legend, - // which provides essential information for a non-interactive chart. - var html, sepLines, i, dash, strokePattern; - var labels = g.getLabels(); - - if (typeof(x) === 'undefined') { - if (g.getOption('legend') != 'always') { - return ''; - } - - sepLines = g.getOption('labelsSeparateLines'); - html = ''; - for (i = 1; i < labels.length; i++) { - var series = g.getPropertiesForSeries(labels[i]); - if (!series.visible) continue; - - if (html !== '') html += (sepLines ? '<br/>' : ' '); - strokePattern = g.getOption("strokePattern", labels[i]); - dash = generateLegendDashHTML(strokePattern, series.color, oneEmWidth); - html += "<span style='font-weight: bold; color: " + series.color + ";'>" + - dash + " " + labels[i] + "</span>"; - } - return html; - } - - // TODO(danvk): remove this use of a private API - var xOptView = g.optionsViewForAxis_('x'); - var xvf = xOptView('valueFormatter'); - html = xvf(x, xOptView, labels[0], g); - if (html !== '') { - html += ':'; - } - - var yOptViews = []; - var num_axes = g.numAxes(); - for (i = 0; i < num_axes; i++) { - // TODO(danvk): remove this use of a private API - yOptViews[i] = g.optionsViewForAxis_('y' + (i ? 1 + i : '')); - } - var showZeros = g.getOption("labelsShowZeroValues"); - sepLines = g.getOption("labelsSeparateLines"); - var highlightSeries = g.getHighlightSeries(); - for (i = 0; i < sel_points.length; i++) { - var pt = sel_points[i]; - if (pt.yval === 0 && !showZeros) continue; - if (!Dygraph.isOK(pt.canvasy)) continue; - if (sepLines) html += "<br/>"; - - var series = g.getPropertiesForSeries(pt.name); - var yOptView = yOptViews[series.axis - 1]; - var fmtFunc = yOptView('valueFormatter'); - var yval = fmtFunc(pt.yval, yOptView, pt.name, g); - - var cls = (pt.name == highlightSeries) ? " class='highlight'" : ""; - - // TODO(danvk): use a template string here and make it an attribute. - html += "<span" + cls + ">" + " <b><span style='color: " + series.color + ";'>" + - pt.name + "</span></b>: " + yval + "</span>"; - } - return html; -}; - - -/** - * Generates html for the "dash" displayed on the legend when using "legend: always". - * In particular, this works for dashed lines with any stroke pattern. It will - * try to scale the pattern to fit in 1em width. Or if small enough repeat the - * pattern for 1em width. - * - * @param strokePattern The pattern - * @param color The color of the series. - * @param oneEmWidth The width in pixels of 1em in the legend. - * @private - */ -generateLegendDashHTML = function(strokePattern, color, oneEmWidth) { - // IE 7,8 fail at these divs, so they get boring legend, have not tested 9. - var isIE = (/MSIE/.test(navigator.userAgent) && !window.opera); - if (isIE) return "—"; - - // Easy, common case: a solid line - if (!strokePattern || strokePattern.length <= 1) { - return "<div style=\"display: inline-block; position: relative; " + - "bottom: .5ex; padding-left: 1em; height: 1px; " + - "border-bottom: 2px solid " + color + ";\"></div>"; - } - - var i, j, paddingLeft, marginRight; - var strokePixelLength = 0, segmentLoop = 0; - var normalizedPattern = []; - var loop; - - // Compute the length of the pixels including the first segment twice, - // since we repeat it. - for (i = 0; i <= strokePattern.length; i++) { - strokePixelLength += strokePattern[i%strokePattern.length]; - } - - // See if we can loop the pattern by itself at least twice. - loop = Math.floor(oneEmWidth/(strokePixelLength-strokePattern[0])); - if (loop > 1) { - // This pattern fits at least two times, no scaling just convert to em; - for (i = 0; i < strokePattern.length; i++) { - normalizedPattern[i] = strokePattern[i]/oneEmWidth; - } - // Since we are repeating the pattern, we don't worry about repeating the - // first segment in one draw. - segmentLoop = normalizedPattern.length; - } else { - // If the pattern doesn't fit in the legend we scale it to fit. - loop = 1; - for (i = 0; i < strokePattern.length; i++) { - normalizedPattern[i] = strokePattern[i]/strokePixelLength; - } - // For the scaled patterns we do redraw the first segment. - segmentLoop = normalizedPattern.length+1; - } - - // Now make the pattern. - var dash = ""; - for (j = 0; j < loop; j++) { - for (i = 0; i < segmentLoop; i+=2) { - // The padding is the drawn segment. - paddingLeft = normalizedPattern[i%normalizedPattern.length]; - if (i < strokePattern.length) { - // The margin is the space segment. - marginRight = normalizedPattern[(i+1)%normalizedPattern.length]; - } else { - // The repeated first segment has no right margin. - marginRight = 0; - } - dash += "<div style=\"display: inline-block; position: relative; " + - "bottom: .5ex; margin-right: " + marginRight + "em; padding-left: " + - paddingLeft + "em; height: 1px; border-bottom: 2px solid " + color + - ";\"></div>"; - } - } - return dash; -}; - - -return legend; -})(); |