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Diffstat (limited to 'tipboard/static/js/lib/jqplot/plugins/jqplot.pointLabels.js')
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1 files changed, 377 insertions, 0 deletions
diff --git a/tipboard/static/js/lib/jqplot/plugins/jqplot.pointLabels.js b/tipboard/static/js/lib/jqplot/plugins/jqplot.pointLabels.js new file mode 100644 index 0000000..4edc69e --- /dev/null +++ b/tipboard/static/js/lib/jqplot/plugins/jqplot.pointLabels.js @@ -0,0 +1,377 @@ +/** + * 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($) { + + /** + * Class: $.jqplot.PointLabels + * Plugin for putting labels at the data points. + * + * To use this plugin, include the js + * file in your source: + * + * > <script type="text/javascript" src="plugins/jqplot.pointLabels.js"></script> + * + * By default, the last value in the data ponit array in the data series is used + * for the label. For most series renderers, extra data can be added to the + * data point arrays and the last value will be used as the label. + * + * For instance, + * this series: + * + * > [[1,4], [3,5], [7,2]] + * + * Would, by default, use the y values in the labels. + * Extra data can be added to the series like so: + * + * > [[1,4,'mid'], [3 5,'hi'], [7,2,'low']] + * + * And now the point labels would be 'mid', 'low', and 'hi'. + * + * Options to the point labels and a custom labels array can be passed into the + * "pointLabels" option on the series option like so: + * + * > series:[{pointLabels:{ + * > labels:['mid', 'hi', 'low'], + * > location:'se', + * > ypadding: 12 + * > } + * > }] + * + * A custom labels array in the options takes precendence over any labels + * in the series data. If you have a custom labels array in the options, + * but still want to use values from the series array as labels, set the + * "labelsFromSeries" option to true. + * + * By default, html entities (<, >, etc.) are escaped in point labels. + * If you want to include actual html markup in the labels, + * set the "escapeHTML" option to false. + * + */ + $.jqplot.PointLabels = function(options) { + // Group: Properties + // + // prop: show + // show the labels or not. + this.show = $.jqplot.config.enablePlugins; + // prop: location + // compass location where to position the label around the point. + // 'n', 'ne', 'e', 'se', 's', 'sw', 'w', 'nw' + this.location = 'n'; + // prop: labelsFromSeries + // true to use labels within data point arrays. + this.labelsFromSeries = false; + // prop: seriesLabelIndex + // array index for location of labels within data point arrays. + // if null, will use the last element of the data point array. + this.seriesLabelIndex = null; + // prop: labels + // array of arrays of labels, one array for each series. + this.labels = []; + // actual labels that will get displayed. + // needed to preserve user specified labels in labels array. + this._labels = []; + // prop: stackedValue + // true to display value as stacked in a stacked plot. + // no effect if labels is specified. + this.stackedValue = false; + // prop: ypadding + // vertical padding in pixels between point and label + this.ypadding = 6; + // prop: xpadding + // horizontal padding in pixels between point and label + this.xpadding = 6; + // prop: escapeHTML + // true to escape html entities in the labels. + // If you want to include markup in the labels, set to false. + this.escapeHTML = true; + // prop: edgeTolerance + // Number of pixels that the label must be away from an axis + // boundary in order to be drawn. Negative values will allow overlap + // with the grid boundaries. + this.edgeTolerance = -5; + // prop: formatter + // A class of a formatter for the tick text. sprintf by default. + this.formatter = $.jqplot.DefaultTickFormatter; + // prop: formatString + // string passed to the formatter. + this.formatString = ''; + // prop: hideZeros + // true to not show a label for a value which is 0. + this.hideZeros = false; + this._elems = []; + + $.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']; + + // called with scope of a series + $.jqplot.PointLabels.init = function (target, data, seriesDefaults, opts, plot){ + var options = $.extend(true, {}, seriesDefaults, opts); + options.pointLabels = options.pointLabels || {}; + if (this.renderer.constructor === $.jqplot.BarRenderer && this.barDirection === 'horizontal' && !options.pointLabels.location) { + options.pointLabels.location = 'e'; + } + // add a pointLabels attribute to the series plugins + this.plugins.pointLabels = new $.jqplot.PointLabels(options.pointLabels); + this.plugins.pointLabels.setLabels.call(this); + }; + + // called with scope of series + $.jqplot.PointLabels.prototype.setLabels = function() { + var p = this.plugins.pointLabels; + var labelIdx; + if (p.seriesLabelIndex != null) { + labelIdx = p.seriesLabelIndex; + } + else if (this.renderer.constructor === $.jqplot.BarRenderer && this.barDirection === 'horizontal') { + labelIdx = (this._plotData[0].length < 3) ? 0 : this._plotData[0].length -1; + } + else { + labelIdx = (this._plotData.length === 0) ? 0 : this._plotData[0].length -1; + } + p._labels = []; + if (p.labels.length === 0 || p.labelsFromSeries) { + if (p.stackedValue) { + if (this._plotData.length && this._plotData[0].length){ + // var idx = p.seriesLabelIndex || this._plotData[0].length -1; + for (var i=0; i<this._plotData.length; i++) { + p._labels.push(this._plotData[i][labelIdx]); + } + } + } + else { + // var d = this._plotData; + var d = this.data; + if (this.renderer.constructor === $.jqplot.BarRenderer && this.waterfall) { + d = this._data; + } + if (d.length && d[0].length) { + // var idx = p.seriesLabelIndex || d[0].length -1; + for (var i=0; i<d.length; i++) { + p._labels.push(d[i][labelIdx]); + } + } + d = null; + } + } + else if (p.labels.length){ + p._labels = p.labels; + } + }; + + $.jqplot.PointLabels.prototype.xOffset = function(elem, location, padding) { + location = location || this.location; + padding = padding || this.xpadding; + var offset; + + switch (location) { + case 'nw': + offset = -elem.outerWidth(true) - this.xpadding; + break; + case 'n': + offset = -elem.outerWidth(true)/2; + break; + case 'ne': + offset = this.xpadding; + break; + case 'e': + offset = this.xpadding; + break; + case 'se': + offset = this.xpadding; + break; + case 's': + offset = -elem.outerWidth(true)/2; + break; + case 'sw': + offset = -elem.outerWidth(true) - this.xpadding; + break; + case 'w': + offset = -elem.outerWidth(true) - this.xpadding; + break; + default: // same as 'nw' + offset = -elem.outerWidth(true) - this.xpadding; + break; + } + return offset; + }; + + $.jqplot.PointLabels.prototype.yOffset = function(elem, location, padding) { + location = location || this.location; + padding = padding || this.xpadding; + var offset; + + switch (location) { + case 'nw': + offset = -elem.outerHeight(true) - this.ypadding; + break; + case 'n': + offset = -elem.outerHeight(true) - this.ypadding; + break; + case 'ne': + offset = -elem.outerHeight(true) - this.ypadding; + break; + case 'e': + offset = -elem.outerHeight(true)/2; + break; + case 'se': + offset = this.ypadding; + break; + case 's': + offset = this.ypadding; + break; + case 'sw': + offset = this.ypadding; + break; + case 'w': + offset = -elem.outerHeight(true)/2; + break; + default: // same as 'nw' + offset = -elem.outerHeight(true) - this.ypadding; + break; + } + return offset; + }; + + // called with scope of series + $.jqplot.PointLabels.draw = function (sctx, options, plot) { + var p = this.plugins.pointLabels; + // set labels again in case they have changed. + p.setLabels.call(this); + // remove any previous labels + for (var i=0; i<p._elems.length; i++) { + // Memory Leaks patch + // p._elems[i].remove(); + p._elems[i].emptyForce(); + } + p._elems.splice(0, p._elems.length); + + if (p.show) { + var ax = '_'+this._stackAxis+'axis'; + + if (!p.formatString) { + p.formatString = this[ax]._ticks[0].formatString; + p.formatter = this[ax]._ticks[0].formatter; + } + + var pd = this._plotData; + var ppd = this._prevPlotData; + var xax = this._xaxis; + var yax = this._yaxis; + var elem, helem; + + for (var i=0, l=p._labels.length; i < l; i++) { + var label = p._labels[i]; + + if (label == null || (p.hideZeros && parseInt(label, 10) == 0)) { + continue; + } + + label = p.formatter(p.formatString, label); + + helem = document.createElement('div'); + p._elems[i] = $(helem); + + elem = p._elems[i]; + + + elem.addClass('jqplot-point-label jqplot-series-'+this.index+' jqplot-point-'+i); + elem.css('position', 'absolute'); + elem.insertAfter(sctx.canvas); + + if (p.escapeHTML) { + elem.text(label); + } + else { + elem.html(label); + } + var location = p.location; + if ((this.fillToZero && pd[i][1] < 0) || (this.fillToZero && this._type === 'bar' && this.barDirection === 'horizontal' && pd[i][0] < 0) || (this.waterfall && parseInt(label, 10)) < 0) { + location = oppositeLocations[locationIndicies[location]]; + } + + + var ell = xax.u2p(pd[i][0]) + p.xOffset(elem, location); + var elt = yax.u2p(pd[i][1]) + p.yOffset(elem, location); + + // we have stacked chart but are not showing stacked values, + // place labels in center. + if (this._stack && !p.stackedValue) { + if (this.barDirection === "vertical") { + elt = (this._barPoints[i][0][1] + this._barPoints[i][1][1]) / 2 + plot._gridPadding.top - 0.5 * elem.outerHeight(true); + } + else { + ell = (this._barPoints[i][2][0] + this._barPoints[i][0][0]) / 2 + plot._gridPadding.left - 0.5 * elem.outerWidth(true); + } + } + + if (this.renderer.constructor == $.jqplot.BarRenderer) { + if (this.barDirection == "vertical") { + ell += this._barNudge; + } + else { + elt -= this._barNudge; + } + } + elem.css('left', ell); + elem.css('top', elt); + var elr = ell + elem.width(); + var elb = elt + elem.height(); + var et = p.edgeTolerance; + var scl = $(sctx.canvas).position().left; + var sct = $(sctx.canvas).position().top; + var scr = sctx.canvas.width + scl; + var scb = sctx.canvas.height + sct; + // if label is outside of allowed area, remove it + if (ell - et < scl || elt - et < sct || elr + et > scr || elb + et > scb) { + elem.remove(); + } + + elem = null; + helem = null; + } + + // finally, animate them if the series is animated + // if (this.renderer.animation && this.renderer.animation._supported && this.renderer.animation.show && plot._drawCount < 2) { + // var sel = '.jqplot-point-label.jqplot-series-'+this.index; + // $(sel).hide(); + // $(sel).fadeIn(1000); + // } + + } + }; + + $.jqplot.postSeriesInitHooks.push($.jqplot.PointLabels.init); + $.jqplot.postDrawSeriesHooks.push($.jqplot.PointLabels.draw); +})(jQuery);
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