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Diffstat (limited to 'tipboard/static/js/lib/jqplot/plugins/jqplot.categoryAxisRenderer.js')
-rw-r--r-- | tipboard/static/js/lib/jqplot/plugins/jqplot.categoryAxisRenderer.js | 679 |
1 files changed, 679 insertions, 0 deletions
diff --git a/tipboard/static/js/lib/jqplot/plugins/jqplot.categoryAxisRenderer.js b/tipboard/static/js/lib/jqplot/plugins/jqplot.categoryAxisRenderer.js new file mode 100644 index 0000000..aa77120 --- /dev/null +++ b/tipboard/static/js/lib/jqplot/plugins/jqplot.categoryAxisRenderer.js @@ -0,0 +1,679 @@ +/** + * 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: $.jqplot.CategoryAxisRenderer + * A plugin for jqPlot to render a category style axis, with equal pixel spacing between y data values of a series. + * + * To use this renderer, include the plugin in your source + * > <script type="text/javascript" language="javascript" src="plugins/jqplot.categoryAxisRenderer.js"></script> + * + * and supply the appropriate options to your plot + * + * > {axes:{xaxis:{renderer:$.jqplot.CategoryAxisRenderer}}} + **/ + $.jqplot.CategoryAxisRenderer = function(options) { + $.jqplot.LinearAxisRenderer.call(this); + // prop: sortMergedLabels + // True to sort tick labels when labels are created by merging + // x axis values from multiple series. That is, say you have + // two series like: + // > line1 = [[2006, 4], [2008, 9], [2009, 16]]; + // > line2 = [[2006, 3], [2007, 7], [2008, 6]]; + // If no label array is specified, tick labels will be collected + // from the x values of the series. With sortMergedLabels + // set to true, tick labels will be: + // > [2006, 2007, 2008, 2009] + // With sortMergedLabels set to false, tick labels will be: + // > [2006, 2008, 2009, 2007] + // + // Note, this property is specified on the renderOptions for the + // axes when creating a plot: + // > axes:{xaxis:{renderer:$.jqplot.CategoryAxisRenderer, rendererOptions:{sortMergedLabels:true}}} + this.sortMergedLabels = false; + }; + + $.jqplot.CategoryAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer(); + $.jqplot.CategoryAxisRenderer.prototype.constructor = $.jqplot.CategoryAxisRenderer; + + $.jqplot.CategoryAxisRenderer.prototype.init = function(options){ + this.groups = 1; + this.groupLabels = []; + this._groupLabels = []; + this._grouped = false; + this._barsPerGroup = null; + this.reverse = false; + // prop: tickRenderer + // A class of a rendering engine for creating the ticks labels displayed on the plot, + // See <$.jqplot.AxisTickRenderer>. + // this.tickRenderer = $.jqplot.AxisTickRenderer; + // this.labelRenderer = $.jqplot.AxisLabelRenderer; + $.extend(true, this, {tickOptions:{formatString:'%d'}}, options); + var db = this._dataBounds; + // Go through all the series attached to this axis and find + // the min/max bounds for this axis. + for (var i=0; i<this._series.length; i++) { + var s = this._series[i]; + if (s.groups) { + this.groups = s.groups; + } + var d = s.data; + + for (var j=0; j<d.length; j++) { + if (this.name == 'xaxis' || this.name == 'x2axis') { + if (d[j][0] < db.min || db.min == null) { + db.min = d[j][0]; + } + if (d[j][0] > db.max || db.max == null) { + db.max = d[j][0]; + } + } + else { + if (d[j][1] < db.min || db.min == null) { + db.min = d[j][1]; + } + if (d[j][1] > db.max || db.max == null) { + db.max = d[j][1]; + } + } + } + } + + if (this.groupLabels.length) { + this.groups = this.groupLabels.length; + } + }; + + + $.jqplot.CategoryAxisRenderer.prototype.createTicks = function() { + // we're are operating on an axis here + var ticks = this._ticks; + var userTicks = this.ticks; + var name = this.name; + // databounds were set on axis initialization. + var db = this._dataBounds; + var dim, interval; + var min, max; + var pos1, pos2; + var tt, i; + + // if we already have ticks, use them. + if (userTicks.length) { + // adjust with blanks if we have groups + if (this.groups > 1 && !this._grouped) { + var l = userTicks.length; + var skip = parseInt(l/this.groups, 10); + var count = 0; + for (var i=skip; i<l; i+=skip) { + userTicks.splice(i+count, 0, ' '); + count++; + } + this._grouped = true; + } + this.min = 0.5; + this.max = userTicks.length + 0.5; + var range = this.max - this.min; + this.numberTicks = 2*userTicks.length + 1; + for (i=0; i<userTicks.length; i++){ + tt = this.min + 2 * i * range / (this.numberTicks-1); + // need a marker before and after the tick + var t = new this.tickRenderer(this.tickOptions); + t.showLabel = false; + // t.showMark = true; + t.setTick(tt, this.name); + this._ticks.push(t); + var t = new this.tickRenderer(this.tickOptions); + t.label = userTicks[i]; + // t.showLabel = true; + t.showMark = false; + t.showGridline = false; + t.setTick(tt+0.5, this.name); + this._ticks.push(t); + } + // now add the last tick at the end + var t = new this.tickRenderer(this.tickOptions); + t.showLabel = false; + // t.showMark = true; + t.setTick(tt+1, this.name); + this._ticks.push(t); + } + + // we don't have any ticks yet, let's make some! + else { + if (name == 'xaxis' || name == 'x2axis') { + dim = this._plotDimensions.width; + } + else { + dim = this._plotDimensions.height; + } + + // if min, max and number of ticks specified, user can't specify interval. + if (this.min != null && this.max != null && this.numberTicks != null) { + this.tickInterval = null; + } + + // if max, min, and interval specified and interval won't fit, ignore interval. + if (this.min != null && this.max != null && this.tickInterval != null) { + if (parseInt((this.max-this.min)/this.tickInterval, 10) != (this.max-this.min)/this.tickInterval) { + this.tickInterval = null; + } + } + + // find out how many categories are in the lines and collect labels + var labels = []; + var numcats = 0; + var min = 0.5; + var max, val; + var isMerged = false; + for (var i=0; i<this._series.length; i++) { + var s = this._series[i]; + for (var j=0; j<s.data.length; j++) { + if (this.name == 'xaxis' || this.name == 'x2axis') { + val = s.data[j][0]; + } + else { + val = s.data[j][1]; + } + if ($.inArray(val, labels) == -1) { + isMerged = true; + numcats += 1; + labels.push(val); + } + } + } + + if (isMerged && this.sortMergedLabels) { + if (typeof labels[0] == "string") { + labels.sort(); + } else { + labels.sort(function(a,b) { return a - b; }); + } + } + + // keep a reference to these tick labels to use for redrawing plot (see bug #57) + this.ticks = labels; + + // now bin the data values to the right lables. + for (var i=0; i<this._series.length; i++) { + var s = this._series[i]; + for (var j=0; j<s.data.length; j++) { + if (this.name == 'xaxis' || this.name == 'x2axis') { + val = s.data[j][0]; + } + else { + val = s.data[j][1]; + } + // for category axis, force the values into category bins. + // we should have the value in the label array now. + var idx = $.inArray(val, labels)+1; + if (this.name == 'xaxis' || this.name == 'x2axis') { + s.data[j][0] = idx; + } + else { + s.data[j][1] = idx; + } + } + } + + // adjust with blanks if we have groups + if (this.groups > 1 && !this._grouped) { + var l = labels.length; + var skip = parseInt(l/this.groups, 10); + var count = 0; + for (var i=skip; i<l; i+=skip+1) { + labels[i] = ' '; + } + this._grouped = true; + } + + max = numcats + 0.5; + if (this.numberTicks == null) { + this.numberTicks = 2*numcats + 1; + } + + var range = max - min; + this.min = min; + this.max = max; + var track = 0; + + // todo: adjust this so more ticks displayed. + var maxVisibleTicks = parseInt(3+dim/10, 10); + var skip = parseInt(numcats/maxVisibleTicks, 10); + + if (this.tickInterval == null) { + + this.tickInterval = range / (this.numberTicks-1); + + } + // if tickInterval is specified, we will ignore any computed maximum. + for (var i=0; i<this.numberTicks; i++){ + tt = this.min + i * this.tickInterval; + var t = new this.tickRenderer(this.tickOptions); + // if even tick, it isn't a category, it's a divider + if (i/2 == parseInt(i/2, 10)) { + t.showLabel = false; + t.showMark = true; + } + else { + if (skip>0 && track<skip) { + t.showLabel = false; + track += 1; + } + else { + t.showLabel = true; + track = 0; + } + t.label = t.formatter(t.formatString, labels[(i-1)/2]); + t.showMark = false; + t.showGridline = false; + } + t.setTick(tt, this.name); + this._ticks.push(t); + } + } + + }; + + // called with scope of axis + $.jqplot.CategoryAxisRenderer.prototype.draw = function(ctx, plot) { + if (this.show) { + // populate the axis label and value properties. + // createTicks is a method on the renderer, but + // call it within the scope of the axis. + this.renderer.createTicks.call(this); + // fill a div with axes labels in the right direction. + // Need to pregenerate each axis to get its bounds and + // position it and the labels correctly on the plot. + var dim=0; + var temp; + // Added for theming. + if (this._elem) { + // this._elem.empty(); + // Memory Leaks patch + this._elem.emptyForce(); + } + + this._elem = this._elem || $('<div class="jqplot-axis jqplot-'+this.name+'" style="position:absolute;"></div>'); + + if (this.name == 'xaxis' || this.name == 'x2axis') { + this._elem.width(this._plotDimensions.width); + } + else { + this._elem.height(this._plotDimensions.height); + } + + // create a _label object. + this.labelOptions.axis = this.name; + this._label = new this.labelRenderer(this.labelOptions); + if (this._label.show) { + var elem = this._label.draw(ctx, plot); + elem.appendTo(this._elem); + } + + var t = this._ticks; + for (var i=0; i<t.length; i++) { + var tick = t[i]; + if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) { + var elem = tick.draw(ctx, plot); + elem.appendTo(this._elem); + } + } + + this._groupLabels = []; + // now make group labels + for (var i=0; i<this.groupLabels.length; i++) + { + var elem = $('<div style="position:absolute;" class="jqplot-'+this.name+'-groupLabel"></div>'); + elem.html(this.groupLabels[i]); + this._groupLabels.push(elem); + elem.appendTo(this._elem); + } + } + return this._elem; + }; + + // called with scope of axis + $.jqplot.CategoryAxisRenderer.prototype.set = function() { + var dim = 0; + var temp; + var w = 0; + var h = 0; + var lshow = (this._label == null) ? false : this._label.show; + if (this.show) { + var t = this._ticks; + for (var i=0; i<t.length; i++) { + var tick = t[i]; + if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) { + if (this.name == 'xaxis' || this.name == 'x2axis') { + temp = tick._elem.outerHeight(true); + } + else { + temp = tick._elem.outerWidth(true); + } + if (temp > dim) { + dim = temp; + } + } + } + + var dim2 = 0; + for (var i=0; i<this._groupLabels.length; i++) { + var l = this._groupLabels[i]; + if (this.name == 'xaxis' || this.name == 'x2axis') { + temp = l.outerHeight(true); + } + else { + temp = l.outerWidth(true); + } + if (temp > dim2) { + dim2 = temp; + } + } + + if (lshow) { + w = this._label._elem.outerWidth(true); + h = this._label._elem.outerHeight(true); + } + if (this.name == 'xaxis') { + dim += dim2 + h; + this._elem.css({'height':dim+'px', left:'0px', bottom:'0px'}); + } + else if (this.name == 'x2axis') { + dim += dim2 + h; + this._elem.css({'height':dim+'px', left:'0px', top:'0px'}); + } + else if (this.name == 'yaxis') { + dim += dim2 + w; + this._elem.css({'width':dim+'px', left:'0px', top:'0px'}); + if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) { + this._label._elem.css('width', w+'px'); + } + } + else { + dim += dim2 + w; + this._elem.css({'width':dim+'px', right:'0px', top:'0px'}); + if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) { + this._label._elem.css('width', w+'px'); + } + } + } + }; + + // called with scope of axis + $.jqplot.CategoryAxisRenderer.prototype.pack = function(pos, offsets) { + var ticks = this._ticks; + var max = this.max; + var min = this.min; + var offmax = offsets.max; + var offmin = offsets.min; + var lshow = (this._label == null) ? false : this._label.show; + var i; + + for (var p in pos) { + this._elem.css(p, pos[p]); + } + + this._offsets = offsets; + // pixellength will be + for x axes and - for y axes becasue pixels always measured from top left. + var pixellength = offmax - offmin; + var unitlength = max - min; + + if (!this.reverse) { + // point to unit and unit to point conversions references to Plot DOM element top left corner. + + this.u2p = function(u){ + return (u - min) * pixellength / unitlength + offmin; + }; + + this.p2u = function(p){ + return (p - offmin) * unitlength / pixellength + min; + }; + + if (this.name == 'xaxis' || this.name == 'x2axis'){ + this.series_u2p = function(u){ + return (u - min) * pixellength / unitlength; + }; + this.series_p2u = function(p){ + return p * unitlength / pixellength + min; + }; + } + + else { + this.series_u2p = function(u){ + return (u - max) * pixellength / unitlength; + }; + this.series_p2u = function(p){ + return p * unitlength / pixellength + max; + }; + } + } + + else { + // point to unit and unit to point conversions references to Plot DOM element top left corner. + + this.u2p = function(u){ + return offmin + (max - u) * pixellength / unitlength; + }; + + this.p2u = function(p){ + return min + (p - offmin) * unitlength / pixellength; + }; + + if (this.name == 'xaxis' || this.name == 'x2axis'){ + this.series_u2p = function(u){ + return (max - u) * pixellength / unitlength; + }; + this.series_p2u = function(p){ + return p * unitlength / pixellength + max; + }; + } + + else { + this.series_u2p = function(u){ + return (min - u) * pixellength / unitlength; + }; + this.series_p2u = function(p){ + return p * unitlength / pixellength + min; + }; + } + + } + + + if (this.show) { + if (this.name == 'xaxis' || this.name == 'x2axis') { + for (i=0; i<ticks.length; i++) { + var t = ticks[i]; + if (t.show && t.showLabel) { + var shim; + + if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) { + // will need to adjust auto positioning based on which axis this is. + var temp = (this.name == 'xaxis') ? 1 : -1; + switch (t.labelPosition) { + case 'auto': + // position at end + if (temp * t.angle < 0) { + shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; + } + // position at start + else { + shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2; + } + break; + case 'end': + shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; + break; + case 'start': + shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2; + break; + case 'middle': + shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; + break; + default: + shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; + break; + } + } + else { + shim = -t.getWidth()/2; + } + var val = this.u2p(t.value) + shim + 'px'; + t._elem.css('left', val); + t.pack(); + } + } + + var labeledge=['bottom', 0]; + if (lshow) { + var w = this._label._elem.outerWidth(true); + this._label._elem.css('left', offmin + pixellength/2 - w/2 + 'px'); + if (this.name == 'xaxis') { + this._label._elem.css('bottom', '0px'); + labeledge = ['bottom', this._label._elem.outerHeight(true)]; + } + else { + this._label._elem.css('top', '0px'); + labeledge = ['top', this._label._elem.outerHeight(true)]; + } + this._label.pack(); + } + + // draw the group labels + var step = parseInt(this._ticks.length/this.groups, 10) + 1; + for (i=0; i<this._groupLabels.length; i++) { + var mid = 0; + var count = 0; + for (var j=i*step; j<(i+1)*step; j++) { + if (j >= this._ticks.length-1) continue; // the last tick does not exist as there is no other group in order to have an empty one. + if (this._ticks[j]._elem && this._ticks[j].label != " ") { + var t = this._ticks[j]._elem; + var p = t.position(); + mid += p.left + t.outerWidth(true)/2; + count++; + } + } + mid = mid/count; + this._groupLabels[i].css({'left':(mid - this._groupLabels[i].outerWidth(true)/2)}); + this._groupLabels[i].css(labeledge[0], labeledge[1]); + } + } + else { + for (i=0; i<ticks.length; i++) { + var t = ticks[i]; + if (t.show && t.showLabel) { + var shim; + if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) { + // will need to adjust auto positioning based on which axis this is. + var temp = (this.name == 'yaxis') ? 1 : -1; + switch (t.labelPosition) { + case 'auto': + // position at end + case 'end': + if (temp * t.angle < 0) { + shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2; + } + else { + shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2; + } + break; + case 'start': + if (t.angle > 0) { + shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2; + } + else { + shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2; + } + break; + case 'middle': + // if (t.angle > 0) { + // shim = -t.getHeight()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; + // } + // else { + // shim = -t.getHeight()/2 - t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2; + // } + shim = -t.getHeight()/2; + break; + default: + shim = -t.getHeight()/2; + break; + } + } + else { + shim = -t.getHeight()/2; + } + + var val = this.u2p(t.value) + shim + 'px'; + t._elem.css('top', val); + t.pack(); + } + } + + var labeledge=['left', 0]; + if (lshow) { + var h = this._label._elem.outerHeight(true); + this._label._elem.css('top', offmax - pixellength/2 - h/2 + 'px'); + if (this.name == 'yaxis') { + this._label._elem.css('left', '0px'); + labeledge = ['left', this._label._elem.outerWidth(true)]; + } + else { + this._label._elem.css('right', '0px'); + labeledge = ['right', this._label._elem.outerWidth(true)]; + } + this._label.pack(); + } + + // draw the group labels, position top here, do left after label position. + var step = parseInt(this._ticks.length/this.groups, 10) + 1; // step is one more than before as we don't want to have overlaps in loops + for (i=0; i<this._groupLabels.length; i++) { + var mid = 0; + var count = 0; + for (var j=i*step; j<(i+1)*step; j++) { // j must never reach (i+1)*step as we don't want to have overlap between loops + if (j >= this._ticks.length-1) continue; // the last tick does not exist as there is no other group in order to have an empty one. + if (this._ticks[j]._elem && this._ticks[j].label != " ") { + var t = this._ticks[j]._elem; + var p = t.position(); + mid += p.top + t.outerHeight()/2; + count++; + } + } + mid = mid/count; + this._groupLabels[i].css({'top':mid - this._groupLabels[i].outerHeight()/2}); + this._groupLabels[i].css(labeledge[0], labeledge[1]); + + } + } + } + }; + + +})(jQuery); |