assets/javascripts/jquery/jquery.jqplot/plugins/jqplot.pyramidAxisRenderer.js
/**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: 1.0.0
* Revision: 1095
*
* Copyright (c) 2009-2011 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.PyramidAxisRenderer = function() {
$.jqplot.LinearAxisRenderer.call(this);
};
$.jqplot.PyramidAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer();
$.jqplot.PyramidAxisRenderer.prototype.constructor = $.jqplot.PyramidAxisRenderer;
// called with scope of axis
$.jqplot.PyramidAxisRenderer.prototype.init = function(options){
// Group: Properties
//
// prop: position
// Position of axis. Values are: top, bottom , left, center, right.
// By default, x and x2 axes are bottom, y axis is center.
this.position = null;
// prop: drawBaseline
// True to draw the axis baseline.
this.drawBaseline = true;
// prop: baselineWidth
// width of the baseline in pixels.
this.baselineWidth = null;
// prop: baselineColor
// CSS color spec for the baseline.
this.baselineColor = null;
this.tickSpacingFactor = 25;
this._type = 'pyramid';
this._splitAxis = false;
this._splitLength = null;
this.category = false;
this._autoFormatString = '';
this._overrideFormatString = false;
$.extend(true, this, options);
this.renderer.options = options;
this.resetDataBounds = this.renderer.resetDataBounds;
this.resetDataBounds();
};
$.jqplot.PyramidAxisRenderer.prototype.resetDataBounds = function() {
// Go through all the series attached to this axis and find
// the min/max bounds for this axis.
var db = this._dataBounds;
db.min = null;
db.max = null;
var temp;
for (var i=0; i<this._series.length; i++) {
var s = this._series[i];
var d = s._plotData;
for (var j=0, l=d.length; j<l; j++) {
if (this.name.charAt(0) === 'x') {
temp = d[j][1];
if ((temp !== null && temp < db.min) || db.min === null) {
db.min = temp;
}
if ((temp !== null && temp > db.max) || db.max === null) {
db.max = temp;
}
}
else {
temp = d[j][0];
if ((temp !== null && temp < db.min) || db.min === null) {
db.min = temp;
}
if ((temp !== null && temp > db.max) || db.max === null) {
db.max = temp;
}
}
}
}
};
// called with scope of axis
$.jqplot.PyramidAxisRenderer.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, plot);
// fill a div with axes labels in the right direction.
// Need to pregenerate each axis to get it's bounds and
// position it and the labels correctly on the plot.
var dim=0;
var temp;
// Added for theming.
if (this._elem) {
// Memory Leaks patch
//this._elem.empty();
this._elem.emptyForce();
this._elem = null;
}
this._elem = $(document.createElement('div'));
this._elem.addClass('jqplot-axis jqplot-'+this.name);
this._elem.css('position', 'absolute');
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);
elem = null;
}
var t = this._ticks;
var tick;
for (var i=0; i<t.length; i++) {
tick = t[i];
if (tick.show && tick.showLabel && (!tick.isMinorTick)) {
this._elem.append(tick.draw(ctx, plot));
}
}
tick = null;
t = null;
}
return this._elem;
};
// Note, primes can be found on http://primes.utm.edu/
var _primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997];
var _primesHash = {};
for (var i =0, l = _primes.length; i < l; i++) {
_primesHash[_primes[i]] = _primes[i];
}
// called with scope of axis
$.jqplot.PyramidAxisRenderer.prototype.createTicks = function(plot) {
// we're are operating on an axis here
var userTicks = this.ticks;
// databounds were set on axis initialization.
var db = this._dataBounds;
var dim;
var interval;
var min;
var max;
var range;
var pos1;
var pos2;
var tt;
var i;
var l;
var s;
// get a copy of user's settings for min/max.
var userMin = this.min;
var userMax = this.max;
var ut;
var t;
var threshold;
var tdim;
var scalefact;
var ret;
var tumin;
var tumax;
var maxVisibleTicks;
var val;
var skip = null;
var temp;
// if we already have ticks, use them.
// ticks must be in order of increasing value.
if (userTicks.length) {
// ticks could be 1D or 2D array of [val, val, ,,,] or [[val, label], [val, label], ...] or mixed
for (i=0, l=userTicks.length; i<l; i++){
ut = userTicks[i];
t = new this.tickRenderer(this.tickOptions);
if ($.isArray(ut)) {
t.value = ut[0];
t.label = ut[1];
t.setTick(ut[0], this.name);
this._ticks.push(t);
}
else if ($.isPlainObject(ut)) {
$.extend(true, t, ut);
t.axis = this.name;
this._ticks.push(t);
}
else {
if (typeof ut === 'string') {
val = i + plot.defaultAxisStart;
}
else {
val = ut;
}
t.value = val;
t.label = ut;
t.axis = this.name;
this._ticks.push(t);
}
}
this.numberTicks = userTicks.length;
this.min = this._ticks[0].value;
this.max = this._ticks[this.numberTicks-1].value;
this.tickInterval = (this.max - this.min) / (this.numberTicks - 1);
// use user specified tickInterval if there is one
if (this._options.tickInterval) {
// hide every tick except for ticks on interval
var ti = this._options.tickInterval;
for (i=0; i<this.numberTicks; i++) {
if (i%ti !== 0) {
// this._ticks[i].show = false;
this._ticks[i].isMinorTick = true;
}
}
}
else {
// check if we have too many ticks
dim = (this.name.charAt(0) === 'x') ? this._plotDimensions.width : this._plotDimensions.height;
maxVisibleTicks = Math.round(2.0 + dim/this.tickSpacingFactor);
if (this.numberTicks > maxVisibleTicks) {
// check for number of ticks we can skip
temp = this.numberTicks - 1;
for (i=2; i<temp; i++) {
if (temp % i === 0 && temp/i < maxVisibleTicks) {
skip = i-1;
break;
}
}
if (skip !== null) {
var count = 1;
for (i=1, l=this._ticks.length; i<l; i++) {
if (count <= skip) {
this._ticks[i].show = false;
count += 1;
}
else {
count = 1;
}
}
}
}
}
// if category style, add minor ticks in between
temp = [];
if (this.category) {
// turn off gridline and mark on first tick
this._ticks[0].showGridline = false;
this._ticks[0].showMark = false;
for (i=this._ticks.length-1; i>0; i--) {
t = new this.tickRenderer(this.tickOptions);
t.value = this._ticks[i-1].value + this.tickInterval/2.0;
t.label = '';
t.showLabel = false;
t.axis = this.name;
this._ticks[i].showGridline = false;
this._ticks[i].showMark = false;
this._ticks.splice(i, 0, t);
// temp.push(t);
}
// merge in the new ticks
// for (i=1, l=temp.length; i<l; i++) {
// this._ticks.splice(i, 0, temp[i]);
// }
// now add a tick at beginning and end
t = new this.tickRenderer(this.tickOptions);
t.value = this._ticks[0].value - this.tickInterval/2.0;
t.label = '';
t.showLabel = false;
t.axis = this.name;
this._ticks.unshift(t);
t = new this.tickRenderer(this.tickOptions);
t.value = this._ticks[this._ticks.length-1].value + this.tickInterval/2.0;
t.label = '';
t.showLabel = false;
t.axis = this.name;
this._ticks.push(t);
this.tickInterval = this.tickInterval / 2.0;
this.numberTicks = this._ticks.length;
this.min = this._ticks[0].value;
this.max = this._ticks[this._ticks.length-1].value;
}
}
// we don't have any ticks yet, let's make some!
else {
if (this.name.charAt(0) === 'x') {
dim = this._plotDimensions.width;
// make sure x axis is symetric about 0.
var tempmax = Math.max(db.max, Math.abs(db.min));
var tempmin = Math.min(db.min, -tempmax);
// min = ((this.min != null) ? this.min : tempmin);
// max = ((this.max != null) ? this.max : tempmax);
min = tempmin;
max = tempmax;
range = max - min;
if (this.tickOptions == null || !this.tickOptions.formatString) {
this._overrideFormatString = true;
}
threshold = 30;
tdim = Math.max(dim, threshold+1);
scalefact = (tdim-threshold)/300.0;
ret = $.jqplot.LinearTickGenerator(min, max, scalefact);
// calculate a padded max and min, points should be less than these
// so that they aren't too close to the edges of the plot.
// User can adjust how much padding is allowed with pad, padMin and PadMax options.
tumin = min + range*(this.padMin - 1);
tumax = max - range*(this.padMax - 1);
if (min < tumin || max > tumax) {
tumin = min - range*(this.padMin - 1);
tumax = max + range*(this.padMax - 1);
ret = $.jqplot.LinearTickGenerator(tumin, tumax, scalefact);
}
this.min = ret[0];
this.max = ret[1];
this.numberTicks = ret[2];
this._autoFormatString = ret[3];
this.tickInterval = ret[4];
}
else {
dim = this._plotDimensions.height;
// ticks will be on whole integers like 1, 2, 3, ... or 1, 4, 7, ...
min = db.min;
max = db.max;
s = this._series[0];
this._ticks = [];
range = max - min;
// if range is a prime, will get only 2 ticks, expand range in that case.
if (_primesHash[range]) {
range += 1;
max += 1;
}
this.max = max;
this.min = min;
maxVisibleTicks = Math.round(2.0 + dim/this.tickSpacingFactor);
if (range + 1 <= maxVisibleTicks) {
this.numberTicks = range + 1;
this.tickInterval = 1.0;
}
else {
// figure out a round number of ticks to skip in every interval
// range / ti + 1 = nt
// ti = range / (nt - 1)
for (var i=maxVisibleTicks; i>1; i--) {
if (range/(i - 1) === Math.round(range/(i - 1))) {
this.numberTicks = i;
this.tickInterval = range/(i - 1);
break;
}
}
}
}
if (this._overrideFormatString && this._autoFormatString != '') {
this.tickOptions = this.tickOptions || {};
this.tickOptions.formatString = this._autoFormatString;
}
var labelval;
for (i=0; i<this.numberTicks; i++) {
this.tickOptions.axis = this.name;
labelval = this.min + this.tickInterval * i;
if (this.name.charAt(0) === 'x') {
labelval = Math.abs(labelval);
}
// this.tickOptions.label = String (labelval);
this.tickOptions.value = this.min + this.tickInterval * i;
t = new this.tickRenderer(this.tickOptions);
t.label = t.prefix + t.formatter(t.formatString, labelval);
this._ticks.push(t);
// for x axis, if y axis is in middle, add a symetrical 0 tick
if (this.name.charAt(0) === 'x' && plot.axes.yMidAxis.show && this.tickOptions.value === 0) {
this._splitAxis = true;
this._splitLength = plot.axes.yMidAxis.getWidth();
// t.value = -this.max/2000.0;
t = new this.tickRenderer(this.tickOptions);
this._ticks.push(t);
t.value = this.max/2000.0;
}
}
t = null;
}
};
// called with scope of axis
$.jqplot.PyramidAxisRenderer.prototype.set = function() {
var dim = 0;
var temp;
var w = 0;
var h = 0;
var i;
var t;
var tick;
var lshow = (this._label == null) ? false : this._label.show;
if (this.show) {
t = this._ticks;
l = t.length;
for (i=0; i<l; i++) {
tick = t[i];
if (!tick._breakTick && tick.show && tick.showLabel && !tick.isMinorTick) {
if (this.name.charAt(0) === 'x') {
temp = tick._elem.outerHeight(true);
}
else {
temp = tick._elem.outerWidth(true);
}
if (temp > dim) {
dim = temp;
}
}
}
if (this.name === 'yMidAxis') {
for (i=0; i<l; i++) {
tick = t[i];
if (tick._elem) {
temp = (dim - tick._elem.outerWidth(true))/2.0;
tick._elem.css('left', temp);
}
}
}
tick = null;
t = null;
if (lshow) {
w = this._label._elem.outerWidth(true);
h = this._label._elem.outerHeight(true);
}
if (this.name === 'xaxis') {
dim = dim + h;
this._elem.css({'height':dim+'px', left:'0px', bottom:'0px'});
}
else if (this.name === 'x2axis') {
dim = dim + h;
this._elem.css({'height':dim+'px', left:'0px', top:'0px'});
}
else if (this.name === 'yaxis') {
dim = dim + 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 if (this.name === 'yMidAxis') {
// don't include width of label at all in width of axis?
// dim = (dim > w) ? dim : w;
var temp = dim/2.0 - w/2.0;
this._elem.css({'width':dim+'px', top:'0px'});
if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) {
this._label._elem.css({width: w, left: temp, top: 0});
}
}
else {
dim = dim + 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');
}
}
}
};
$.jqplot.PyramidAxisRenderer.prototype.pack = function(pos, offsets) {
// Add defaults for repacking from resetTickValues function.
pos = pos || {};
offsets = offsets || this._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;
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;
var sl = this._splitLength;
// point to unit and unit to point conversions references to Plot DOM element top left corner.
if (this._splitAxis) {
pixellength -= this._splitLength;
// don't know that this one is correct.
this.p2u = function(p){
return (p - offmin) * unitlength / pixellength + min;
};
this.u2p = function(u){
if (u <= 0) {
return (u - min) * pixellength / unitlength + offmin;
}
else {
return (u - min) * pixellength / unitlength + offmin + sl;
}
};
this.series_u2p = function(u){
if (u <= 0) {
return (u - min) * pixellength / unitlength;
}
else {
return (u - min) * pixellength / unitlength + sl;
}
};
// don't know that this one is correct.
this.series_p2u = function(p){
return p * unitlength / pixellength + min;
};
}
else {
this.p2u = function(p){
return (p - offmin) * unitlength / pixellength + min;
};
this.u2p = function(u){
return (u - min) * pixellength / unitlength + offmin;
};
if (this.name.charAt(0) === 'x'){
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;
};
}
}
if (this.show) {
if (this.name.charAt(0) === 'x') {
for (var 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();
}
}
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');
}
else {
this._label._elem.css('top', '0px');
}
this._label.pack();
}
}
else {
for (var i=0; i<ticks.length; i++) {
var t = ticks[i];
if (t.show && t.showLabel && !t.isMinorTick) {
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();
}
}
if (lshow) {
var h = this._label._elem.outerHeight(true);
if (this.name !== 'yMidAxis') {
this._label._elem.css('top', offmax - pixellength/2 - h/2 + 'px');
}
if (this.name == 'yaxis') {
this._label._elem.css('left', '0px');
}
else if (this.name !== 'yMidAxis') {
this._label._elem.css('right', '0px');
}
this._label.pack();
}
}
}
ticks = null;
};
})(jQuery);