diff options
Diffstat (limited to 'tipboard/static/js/lib/jqplot/plugins/jqplot.highlighter.js')
| -rw-r--r-- | tipboard/static/js/lib/jqplot/plugins/jqplot.highlighter.js | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/tipboard/static/js/lib/jqplot/plugins/jqplot.highlighter.js b/tipboard/static/js/lib/jqplot/plugins/jqplot.highlighter.js new file mode 100644 index 0000000..3105c85 --- /dev/null +++ b/tipboard/static/js/lib/jqplot/plugins/jqplot.highlighter.js @@ -0,0 +1,465 @@ +/** + * jqPlot + * Pure JavaScript plotting plugin using jQuery + * + * Version: 1.0.8 + * Revision: 1250 + * + * Copyright (c) 2009-2013 Chris Leonello + * jqPlot is currently available for use in all personal or commercial projects + * under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL + * version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can + * choose the license that best suits your project and use it accordingly. + * + * Although not required, the author would appreciate an email letting him + * know of any substantial use of jqPlot. You can reach the author at: + * chris at jqplot dot com or see http://www.jqplot.com/info.php . + * + * If you are feeling kind and generous, consider supporting the project by + * making a donation at: http://www.jqplot.com/donate.php . + * + * sprintf functions contained in jqplot.sprintf.js by Ash Searle: + * + * version 2007.04.27 + * author Ash Searle + * http://hexmen.com/blog/2007/03/printf-sprintf/ + * http://hexmen.com/js/sprintf.js + * The author (Ash Searle) has placed this code in the public domain: + * "This code is unrestricted: you are free to use it however you like." + * + */ +(function($) { + $.jqplot.eventListenerHooks.push(['jqplotMouseMove', handleMove]); + + /** + * Class: $.jqplot.Highlighter + * Plugin which will highlight data points when they are moused over. + * + * To use this plugin, include the js + * file in your source: + * + * > <script type="text/javascript" src="plugins/jqplot.highlighter.js"></script> + * + * A tooltip providing information about the data point is enabled by default. + * To disable the tooltip, set "showTooltip" to false. + * + * You can control what data is displayed in the tooltip with various + * options. The "tooltipAxes" option controls whether the x, y or both + * data values are displayed. + * + * Some chart types (e.g. hi-low-close) have more than one y value per + * data point. To display the additional values in the tooltip, set the + * "yvalues" option to the desired number of y values present (3 for a hlc chart). + * + * By default, data values will be formatted with the same formatting + * specifiers as used to format the axis ticks. A custom format code + * can be supplied with the tooltipFormatString option. This will apply + * to all values in the tooltip. + * + * For more complete control, the "formatString" option can be set. This + * Allows conplete control over tooltip formatting. Values are passed to + * the format string in an order determined by the "tooltipAxes" and "yvalues" + * options. So, if you have a hi-low-close chart and you just want to display + * the hi-low-close values in the tooltip, you could set a formatString like: + * + * > highlighter: { + * > tooltipAxes: 'y', + * > yvalues: 3, + * > formatString:'<table class="jqplot-highlighter"> + * > <tr><td>hi:</td><td>%s</td></tr> + * > <tr><td>low:</td><td>%s</td></tr> + * > <tr><td>close:</td><td>%s</td></tr></table>' + * > } + * + */ + $.jqplot.Highlighter = function(options) { + // Group: Properties + // + //prop: show + // true to show the highlight. + this.show = $.jqplot.config.enablePlugins; + // prop: markerRenderer + // Renderer used to draw the marker of the highlighted point. + // Renderer will assimilate attributes from the data point being highlighted, + // so no attributes need set on the renderer directly. + // Default is to turn off shadow drawing on the highlighted point. + this.markerRenderer = new $.jqplot.MarkerRenderer({shadow:false}); + // prop: showMarker + // true to show the marker + this.showMarker = true; + // prop: lineWidthAdjust + // Pixels to add to the lineWidth of the highlight. + this.lineWidthAdjust = 2.5; + // prop: sizeAdjust + // Pixels to add to the overall size of the highlight. + this.sizeAdjust = 5; + // prop: showTooltip + // Show a tooltip with data point values. + this.showTooltip = true; + // prop: tooltipLocation + // Where to position tooltip, 'n', 'ne', 'e', 'se', 's', 'sw', 'w', 'nw' + this.tooltipLocation = 'nw'; + // prop: fadeTooltip + // true = fade in/out tooltip, flase = show/hide tooltip + this.fadeTooltip = true; + // prop: tooltipFadeSpeed + // 'slow', 'def', 'fast', or number of milliseconds. + this.tooltipFadeSpeed = "fast"; + // prop: tooltipOffset + // Pixel offset of tooltip from the highlight. + this.tooltipOffset = 2; + // prop: tooltipAxes + // Which axes to display in tooltip, 'x', 'y' or 'both', 'xy' or 'yx' + // 'both' and 'xy' are equivalent, 'yx' reverses order of labels. + this.tooltipAxes = 'both'; + // prop; tooltipSeparator + // String to use to separate x and y axes in tooltip. + this.tooltipSeparator = ', '; + // prop; tooltipContentEditor + // Function used to edit/augment/replace the formatted tooltip contents. + // Called as str = tooltipContentEditor(str, seriesIndex, pointIndex) + // where str is the generated tooltip html and seriesIndex and pointIndex identify + // the data point being highlighted. Should return the html for the tooltip contents. + this.tooltipContentEditor = null; + // prop: useAxesFormatters + // Use the x and y axes formatters to format the text in the tooltip. + this.useAxesFormatters = true; + // prop: tooltipFormatString + // sprintf format string for the tooltip. + // Uses Ash Searle's javascript sprintf implementation + // found here: http://hexmen.com/blog/2007/03/printf-sprintf/ + // See http://perldoc.perl.org/functions/sprintf.html for reference. + // Additional "p" and "P" format specifiers added by Chris Leonello. + this.tooltipFormatString = '%.5P'; + // prop: formatString + // alternative to tooltipFormatString + // will format the whole tooltip text, populating with x, y values as + // indicated by tooltipAxes option. So, you could have a tooltip like: + // 'Date: %s, number of cats: %d' to format the whole tooltip at one go. + // If useAxesFormatters is true, values will be formatted according to + // Axes formatters and you can populate your tooltip string with + // %s placeholders. + this.formatString = null; + // prop: yvalues + // Number of y values to expect in the data point array. + // Typically this is 1. Certain plots, like OHLC, will + // have more y values in each data point array. + this.yvalues = 1; + // prop: bringSeriesToFront + // This option requires jQuery 1.4+ + // True to bring the series of the highlighted point to the front + // of other series. + this.bringSeriesToFront = false; + this._tooltipElem; + this.isHighlighting = false; + this.currentNeighbor = null; + + $.extend(true, this, options); + }; + + var locations = ['nw', 'n', 'ne', 'e', 'se', 's', 'sw', 'w']; + var locationIndicies = {'nw':0, 'n':1, 'ne':2, 'e':3, 'se':4, 's':5, 'sw':6, 'w':7}; + var oppositeLocations = ['se', 's', 'sw', 'w', 'nw', 'n', 'ne', 'e']; + + // axis.renderer.tickrenderer.formatter + + // called with scope of plot + $.jqplot.Highlighter.init = function (target, data, opts){ + var options = opts || {}; + // add a highlighter attribute to the plot + this.plugins.highlighter = new $.jqplot.Highlighter(options.highlighter); + }; + + // called within scope of series + $.jqplot.Highlighter.parseOptions = function (defaults, options) { + // Add a showHighlight option to the series + // and set it to true by default. + this.showHighlight = true; + }; + + // called within context of plot + // create a canvas which we can draw on. + // insert it before the eventCanvas, so eventCanvas will still capture events. + $.jqplot.Highlighter.postPlotDraw = function() { + // Memory Leaks patch + if (this.plugins.highlighter && this.plugins.highlighter.highlightCanvas) { + this.plugins.highlighter.highlightCanvas.resetCanvas(); + this.plugins.highlighter.highlightCanvas = null; + } + + if (this.plugins.highlighter && this.plugins.highlighter._tooltipElem) { + this.plugins.highlighter._tooltipElem.emptyForce(); + this.plugins.highlighter._tooltipElem = null; + } + + this.plugins.highlighter.highlightCanvas = new $.jqplot.GenericCanvas(); + + this.eventCanvas._elem.before(this.plugins.highlighter.highlightCanvas.createElement(this._gridPadding, 'jqplot-highlight-canvas', this._plotDimensions, this)); + this.plugins.highlighter.highlightCanvas.setContext(); + + var elem = document.createElement('div'); + this.plugins.highlighter._tooltipElem = $(elem); + elem = null; + this.plugins.highlighter._tooltipElem.addClass('jqplot-highlighter-tooltip'); + this.plugins.highlighter._tooltipElem.css({position:'absolute', display:'none'}); + + this.eventCanvas._elem.before(this.plugins.highlighter._tooltipElem); + }; + + $.jqplot.preInitHooks.push($.jqplot.Highlighter.init); + $.jqplot.preParseSeriesOptionsHooks.push($.jqplot.Highlighter.parseOptions); + $.jqplot.postDrawHooks.push($.jqplot.Highlighter.postPlotDraw); + + function draw(plot, neighbor) { + var hl = plot.plugins.highlighter; + var s = plot.series[neighbor.seriesIndex]; + var smr = s.markerRenderer; + var mr = hl.markerRenderer; + mr.style = smr.style; + mr.lineWidth = smr.lineWidth + hl.lineWidthAdjust; + mr.size = smr.size + hl.sizeAdjust; + var rgba = $.jqplot.getColorComponents(smr.color); + var newrgb = [rgba[0], rgba[1], rgba[2]]; + var alpha = (rgba[3] >= 0.6) ? rgba[3]*0.6 : rgba[3]*(2-rgba[3]); + mr.color = 'rgba('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+','+alpha+')'; + mr.init(); + mr.draw(s.gridData[neighbor.pointIndex][0], s.gridData[neighbor.pointIndex][1], hl.highlightCanvas._ctx); + } + + function showTooltip(plot, series, neighbor) { + // neighbor looks like: {seriesIndex: i, pointIndex:j, gridData:p, data:s.data[j]} + // gridData should be x,y pixel coords on the grid. + // add the plot._gridPadding to that to get x,y in the target. + var hl = plot.plugins.highlighter; + var elem = hl._tooltipElem; + var serieshl = series.highlighter || {}; + + var opts = $.extend(true, {}, hl, serieshl); + + if (opts.useAxesFormatters) { + var xf = series._xaxis._ticks[0].formatter; + var yf = series._yaxis._ticks[0].formatter; + var xfstr = series._xaxis._ticks[0].formatString; + var yfstr = series._yaxis._ticks[0].formatString; + var str; + var xstr = xf(xfstr, neighbor.data[0]); + var ystrs = []; + for (var i=1; i<opts.yvalues+1; i++) { + ystrs.push(yf(yfstr, neighbor.data[i])); + } + if (typeof opts.formatString === 'string') { + switch (opts.tooltipAxes) { + case 'both': + case 'xy': + ystrs.unshift(xstr); + ystrs.unshift(opts.formatString); + str = $.jqplot.sprintf.apply($.jqplot.sprintf, ystrs); + break; + case 'yx': + ystrs.push(xstr); + ystrs.unshift(opts.formatString); + str = $.jqplot.sprintf.apply($.jqplot.sprintf, ystrs); + break; + case 'x': + str = $.jqplot.sprintf.apply($.jqplot.sprintf, [opts.formatString, xstr]); + break; + case 'y': + ystrs.unshift(opts.formatString); + str = $.jqplot.sprintf.apply($.jqplot.sprintf, ystrs); + break; + default: // same as xy + ystrs.unshift(xstr); + ystrs.unshift(opts.formatString); + str = $.jqplot.sprintf.apply($.jqplot.sprintf, ystrs); + break; + } + } + else { + switch (opts.tooltipAxes) { + case 'both': + case 'xy': + str = xstr; + for (var i=0; i<ystrs.length; i++) { + str += opts.tooltipSeparator + ystrs[i]; + } + break; + case 'yx': + str = ''; + for (var i=0; i<ystrs.length; i++) { + str += ystrs[i] + opts.tooltipSeparator; + } + str += xstr; + break; + case 'x': + str = xstr; + break; + case 'y': + str = ystrs.join(opts.tooltipSeparator); + break; + default: // same as 'xy' + str = xstr; + for (var i=0; i<ystrs.length; i++) { + str += opts.tooltipSeparator + ystrs[i]; + } + break; + + } + } + } + else { + var str; + if (typeof opts.formatString === 'string') { + str = $.jqplot.sprintf.apply($.jqplot.sprintf, [opts.formatString].concat(neighbor.data)); + } + + else { + if (opts.tooltipAxes == 'both' || opts.tooltipAxes == 'xy') { + str = $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[0]) + opts.tooltipSeparator + $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[1]); + } + else if (opts.tooltipAxes == 'yx') { + str = $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[1]) + opts.tooltipSeparator + $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[0]); + } + else if (opts.tooltipAxes == 'x') { + str = $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[0]); + } + else if (opts.tooltipAxes == 'y') { + str = $.jqplot.sprintf(opts.tooltipFormatString, neighbor.data[1]); + } + } + } + if ($.isFunction(opts.tooltipContentEditor)) { + // args str, seriesIndex, pointIndex are essential so the hook can look up + // extra data for the point. + str = opts.tooltipContentEditor(str, neighbor.seriesIndex, neighbor.pointIndex, plot); + } + elem.html(str); + var gridpos = {x:neighbor.gridData[0], y:neighbor.gridData[1]}; + var ms = 0; + var fact = 0.707; + if (series.markerRenderer.show == true) { + ms = (series.markerRenderer.size + opts.sizeAdjust)/2; + } + + var loc = locations; + if (series.fillToZero && series.fill && neighbor.data[1] < 0) { + loc = oppositeLocations; + } + + switch (loc[locationIndicies[opts.tooltipLocation]]) { + case 'nw': + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - opts.tooltipOffset - fact * ms; + var y = gridpos.y + plot._gridPadding.top - opts.tooltipOffset - elem.outerHeight(true) - fact * ms; + break; + case 'n': + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true)/2; + var y = gridpos.y + plot._gridPadding.top - opts.tooltipOffset - elem.outerHeight(true) - ms; + break; + case 'ne': + var x = gridpos.x + plot._gridPadding.left + opts.tooltipOffset + fact * ms; + var y = gridpos.y + plot._gridPadding.top - opts.tooltipOffset - elem.outerHeight(true) - fact * ms; + break; + case 'e': + var x = gridpos.x + plot._gridPadding.left + opts.tooltipOffset + ms; + var y = gridpos.y + plot._gridPadding.top - elem.outerHeight(true)/2; + break; + case 'se': + var x = gridpos.x + plot._gridPadding.left + opts.tooltipOffset + fact * ms; + var y = gridpos.y + plot._gridPadding.top + opts.tooltipOffset + fact * ms; + break; + case 's': + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true)/2; + var y = gridpos.y + plot._gridPadding.top + opts.tooltipOffset + ms; + break; + case 'sw': + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - opts.tooltipOffset - fact * ms; + var y = gridpos.y + plot._gridPadding.top + opts.tooltipOffset + fact * ms; + break; + case 'w': + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - opts.tooltipOffset - ms; + var y = gridpos.y + plot._gridPadding.top - elem.outerHeight(true)/2; + break; + default: // same as 'nw' + var x = gridpos.x + plot._gridPadding.left - elem.outerWidth(true) - opts.tooltipOffset - fact * ms; + var y = gridpos.y + plot._gridPadding.top - opts.tooltipOffset - elem.outerHeight(true) - fact * ms; + break; + } + elem.css('left', x); + elem.css('top', y); + if (opts.fadeTooltip) { + // Fix for stacked up animations. Thnanks Trevor! + elem.stop(true,true).fadeIn(opts.tooltipFadeSpeed); + } + else { + elem.show(); + } + elem = null; + + } + + function handleMove(ev, gridpos, datapos, neighbor, plot) { + var hl = plot.plugins.highlighter; + var c = plot.plugins.cursor; + if (hl.show) { + if (neighbor == null && hl.isHighlighting) { + var evt = jQuery.Event('jqplotHighlighterUnhighlight'); + plot.target.trigger(evt); + + var ctx = hl.highlightCanvas._ctx; + ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height); + if (hl.fadeTooltip) { + hl._tooltipElem.fadeOut(hl.tooltipFadeSpeed); + } + else { + hl._tooltipElem.hide(); + } + if (hl.bringSeriesToFront) { + plot.restorePreviousSeriesOrder(); + } + hl.isHighlighting = false; + hl.currentNeighbor = null; + ctx = null; + } + else if (neighbor != null && plot.series[neighbor.seriesIndex].showHighlight && !hl.isHighlighting) { + var evt = jQuery.Event('jqplotHighlighterHighlight'); + evt.which = ev.which; + evt.pageX = ev.pageX; + evt.pageY = ev.pageY; + var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data, plot]; + plot.target.trigger(evt, ins); + + hl.isHighlighting = true; + hl.currentNeighbor = neighbor; + if (hl.showMarker) { + draw(plot, neighbor); + } + if (plot.series[neighbor.seriesIndex].show && hl.showTooltip && (!c || !c._zoom.started)) { + showTooltip(plot, plot.series[neighbor.seriesIndex], neighbor); + } + if (hl.bringSeriesToFront) { + plot.moveSeriesToFront(neighbor.seriesIndex); + } + } + // check to see if we're highlighting the wrong point. + else if (neighbor != null && hl.isHighlighting && hl.currentNeighbor != neighbor) { + // highlighting the wrong point. + + // if new series allows highlighting, highlight new point. + if (plot.series[neighbor.seriesIndex].showHighlight) { + var ctx = hl.highlightCanvas._ctx; + ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height); + hl.isHighlighting = true; + hl.currentNeighbor = neighbor; + if (hl.showMarker) { + draw(plot, neighbor); + } + if (plot.series[neighbor.seriesIndex].show && hl.showTooltip && (!c || !c._zoom.started)) { + showTooltip(plot, plot.series[neighbor.seriesIndex], neighbor); + } + if (hl.bringSeriesToFront) { + plot.moveSeriesToFront(neighbor.seriesIndex); + } + } + } + } + } +})(jQuery);
\ No newline at end of file |