/**
*
* jquery.sparkline.js
*
* v1.4.2
* (c) Splunk, Inc
* Contact: Gareth Watts (gareth@splunk.com)
* http://omnipotent.net/jquery.sparkline/
*
* Generates inline sparkline charts from data supplied either to the method
* or inline in HTML
*
* Compatible with Internet Explorer 6.0+ and modern browsers equipped with the canvas tag
* (Firefox 2.0+, Safari, Opera, etc)
*
* License: New BSD License
*
* Copyright (c) 2009, Splunk Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Splunk Inc nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Usage:
* $(selector).sparkline(values, options)
*
* If values is undefined or set to 'html' then the data values are read from the specified tag:
* <p>Sparkline: <span class="sparkline">1,4,6,6,8,5,3,5</span></p>
* $('.sparkline').sparkline();
* There must be no spaces in the enclosed data set
*
* Otherwise values must be an array of numbers
* <p>Sparkline: <span id="sparkline1">This text replaced if the browser is compatible</span></p>
* $('#sparkline1').sparkline([1,4,6,6,8,5,3,5])
*
* For line charts, x values can also be specified:
* <p>Sparkline: <span class="sparkline">1:1,2.7:4,3.4:6,5:6,6:8,8.7:5,9:3,10:5</span></p>
* $('#sparkline1').sparkline([ [1,1], [2.7,4], [3.4,6], [5,6], [6,8], [8.7,5], [9,3], [10,5] ])
*
* Supported options:
* lineColor - Color of the line used for the chart
* fillColor - Color used to fill in the chart - Set to '' or false for a transparent chart
* width - Width of the chart - Defaults to 3 times the number of values in pixels
* height - Height of the chart - Defaults to the height of the containing element
* chartRangeMin - Specify the minimum value to use for the range of the chart - Defaults to the minimum value supplied
* chartRangeMax - Specify the maximum value to use for the range of the chart - Defaults to the maximum value supplied
* composite - If true then don't erase any existing chart attached to the tag, but draw
* another chart over the top - Note that width and height are ignored if an
* existing chart is detected.
*
* There are 7 types of sparkline, selected by supplying a "type" option of 'line' (default),
* 'bar', 'tristate', 'bullet', 'discrete', 'pie' or 'box'
* line - Line chart. Options:
* spotColor - Set to '' to not end each line in a circular spot
* minSpotColor - If set, color of spot at minimum value
* maxSpotColor - If set, color of spot at maximum value
* spotRadius - Radius in pixels
* normalRangeMin
* normalRangeMax - If set draws a filled horizontal bar between these two values marking the "normal"
* or expected range of values
* normalRangeColor - Color to use for the above bar
* defaultPixelsPerValue - Defaults to 3 pixels of width for each value in the chart
*
* bar - Bar chart. Options:
* barColor - Color of bars for postive values
* negBarColor - Color of bars for negative values
* barWidth - Width of bars in pixels
* barSpacing - Gap between bars in pixels
* zeroAxis - Centers the y-axis around zero if true
*
* tristate - Charts values of win (>0), lose (<0) or draw (=0)
* posBarColor - Color of win values
* negBarColor - Color of lose values
* zeroBarColor - Color of draw values
* barWidth - Width of bars in pixels
* barSpacing - Gap between bars in pixels
* colorMap - Optional mappnig of values to colors to override the *BarColor values above
*
* discrete - Options:
* lineHeight - Height of each line in pixels - Defaults to 30% of the graph height
* thesholdValue - Values less than this value will be drawn using thresholdColor instead of lineColor
* thresholdColor
*
* bullet - Values for bullet graphs msut be in the order: target, performance, range1, range2, range3, ...
* options:
* targetColor - The color of the vertical target marker
* targetWidth - The width of the target marker in pixels
* performanceColor - The color of the performance measure horizontal bar
* rangeColors - Colors to use for each qualitative range background color
*
* pie - Pie chart. Options:
* sliceColors - An array of colors to use for pie slices
* offset - Angle in degrees to offset the first slice - Try -90 or +90
*
* box - Box plot. Options:
* raw - Set to true to supply pre-computed plot points as values
* values should be: low_outlier, low_whisker, q1, median, q3, high_whisker, high_outlier
* When set to false you can supply any number of values and the box plot will
* be computed for you. Default is false.
* showOutliers - Set to true (default) to display outliers as circles
* outlierIRQ - Interquartile range used to determine outliers. Default 1.5
* boxLineColor - Outline color of the box
* boxFillColor - Fill color for the box
* whiskerColor - Line color used for whiskers
* outlierLineColor - Outline color of outlier circles
* outlierFillColor - Fill color of the outlier circles
* spotRadius - Radius of outlier circles
* medianColor - Line color of the median line
* target - Draw a target cross hair at the supplied value (default undefined)
*
*
*
* Examples:
* $('#sparkline1').sparkline(myvalues, { lineColor: '#f00', fillColor: false });
* $('.barsparks').sparkline('html', { type:'bar', height:'40px', barWidth:5 });
* $('#tristate').sparkline([1,1,-1,1,0,0,-1], { type:'tristate' }):
* $('#discrete').sparkline([1,3,4,5,5,3,4,5], { type:'discrete' });
* $('#bullet').sparkline([10,12,12,9,7], { type:'bullet' });
* $('#pie').sparkline([1,1,2], { type:'pie' });
*/
(function($) {
// Provide a cross-browser interface to a few simple drawing primitives
$.fn.simpledraw = function(width, height, use_existing) {
if (use_existing && this[0].vcanvas) return this[0].vcanvas;
if (width==undefined) width=$(this).innerWidth();
if (height==undefined) height=$(this).innerHeight();
if ($.browser.hasCanvas) {
return new vcanvas_canvas(width, height, this);
} else if ($.browser.msie) {
return new vcanvas_vml(width, height, this);
} else {
return false;
}
};
var pending = [];
$.fn.sparkline = function(uservalues, options) {
var options = $.extend({
type : 'line',
lineColor : '#00f',
fillColor : '#cdf',
defaultPixelsPerValue : 3,
width : 'auto',
height : 'auto',
composite : false
}, options ? options : {});
return this.each(function() {
var render = function() {
var values = (uservalues=='html' || uservalues==undefined) ? $(this).text().split(',') : uservalues;
var width = options.width=='auto' ? values.length*options.defaultPixelsPerValue : options.width;
if (options.height == 'auto') {
if (!options.composite || !this.vcanvas) {
// must be a better way to get the line height
var tmp = document.createElement('span');
tmp.innerHTML = 'a';
$(this).html(tmp);
height = $(tmp).innerHeight();
$(tmp).remove();
}
} else {
height = options.height;
}
$.fn.sparkline[options.type].call(this, values, options, width, height);
}
// jQuery 1.3.0 completely changed the meaning of :hidden :-/
if (($(this).html() && $(this).is(':hidden')) || ($.fn.jquery < "1.3.0" && $(this).parents().is(':hidden'))) {
pending.push([this, render]);
} else {
render.call(this);
}
});
};
$.sparkline_display_visible = function() {
for (var i=pending.length-1; i>=0; i--) {
var el = pending[i][0];
if ($(el).is(':visible') && !$(el).parents().is(':hidden')) {
pending[i][1].call(el);
pending.splice(i, 1);
}
}
};
$.fn.sparkline.line = function(values, options, width, height) {
var options = $.extend({
spotColor : '#f80',
spotRadius : 1.5,
minSpotColor : '#f80',
maxSpotColor : '#f80',
normalRangeMin : undefined,
normalRangeMax : undefined,
normalRangeColor : '#ccc',
chartRangeMin : undefined,
chartRangeMax : undefined
}, options ? options : {});
var xvalues = [], yvalues = [];
for (i=0; i<values.length; i++) {
var isstr = typeof(values[i])=='string';
var isarray = typeof(values[i])=='object' && values[i] instanceof Array;
var sp = isstr && values[i].split(':');
if (isstr && sp.length == 2) { // x:y
xvalues.push(Number(sp[0]));
yvalues.push(Number(sp[1]));
} else if (isarray) {
xvalues.push(values[i][0]);
yvalues.push(values[i][1]);
} else {
xvalues.push(i);
yvalues.push(Number(values[i]));
}
}
if (options.xvalues) {
xvalues = options.xvalues;
}
var maxy = Math.max.apply(Math, yvalues);
var maxyval = maxy;
var miny = Math.min.apply(Math, yvalues);
var minyval = miny;
var maxx = Math.max.apply(Math, xvalues);
var maxxval = maxx;
var minx = Math.min.apply(Math, xvalues);
var minxval = minx;
if (options.normalRangeMin!=undefined) {
if (options.normalRangeMin<miny)
miny = options.normalRangeMin;
if (options.normalRangeMax>maxy)
maxy = options.normalRangeMax;
}
if (options.chartRangeMin!=undefined && options.chartRangeMin<miny) {
miny = options.chartRangeMin;
}
if (options.chartRangeMax!=undefined && options.chartRangeMax>maxy) {
maxy = options.chartRangeMax;
}
var rangex = maxx-minx == 0 ? 1 : maxx-minx;
var rangey = maxy-miny == 0 ? 1 : maxy-miny;
var vl = yvalues.length-1;
if (vl<1) {
this.innerHTML = '';
return;
}
var target = $(this).simpledraw(width, height, options.composite);
if (target) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
var canvas_top = 0;
var canvas_left = 0;
if (options.spotRadius && (canvas_width < (options.spotRadius*4) || canvas_height < (options.spotRadius*4))) {
options.spotRadius = 0;
}
if (options.spotRadius) {
// adjust the canvas size as required so that spots will fit
if (options.minSpotColor || (options.spotColor && yvalues[vl]==miny))
canvas_height -= Math.ceil(options.spotRadius);
if (options.maxSpotColor || (options.spotColor && yvalues[vl]==maxy)) {
canvas_height -= Math.ceil(options.spotRadius);
canvas_top += Math.ceil(options.spotRadius);
}
if (options.minSpotColor || options.maxSpotColor && (yvalues[0]==miny || yvalues[0]==maxy)) {
canvas_left += Math.ceil(options.spotRadius);
canvas_width -= Math.ceil(options.spotRadius);
}
if (options.spotColor || (options.minSpotColor || options.maxSpotColor && (yvalues[vl]==miny||yvalues[vl]==maxy)))
canvas_width -= Math.ceil(options.spotRadius);
}
canvas_height--;
if (options.normalRangeMin!=undefined) {
var ytop = canvas_top+Math.round(canvas_height-(canvas_height*((options.normalRangeMax-miny)/rangey)));
var height = Math.round((canvas_height*(options.normalRangeMax-options.normalRangeMin))/rangey);
target.drawRect(canvas_left, ytop, canvas_width, height, undefined, options.normalRangeColor);
}
var path = [ [canvas_left, canvas_top+canvas_height] ];
for(var i=0; i<yvalues.length; i++) {
var x=xvalues[i], y=yvalues[i];
path.push([canvas_left+Math.round((x-minx)*(canvas_width/rangex)), canvas_top+Math.round(canvas_height-(canvas_height*((y-miny)/rangey)))]);
}
if (options.fillColor) {
path.push([canvas_left+canvas_width, canvas_top+canvas_height-1]);
target.drawShape(path, undefined, options.fillColor);
path.pop();
}
path[0] = [ canvas_left, canvas_top+Math.round(canvas_height-(canvas_height*((yvalues[0]-miny)/rangey))) ];
target.drawShape(path, options.lineColor);
if (options.spotRadius && options.spotColor) {
target.drawCircle(canvas_left+canvas_width, canvas_top+Math.round(canvas_height-(canvas_height*((yvalues[vl]-miny)/rangey))), options.spotRadius, undefined, options.spotColor);
}
if (maxy!=minyval) {
if (options.spotRadius && options.minSpotColor) {
var x = xvalues[yvalues.indexOf(minyval)];
target.drawCircle(canvas_left+Math.round((x-minx)*(canvas_width/rangex)), canvas_top+Math.round(canvas_height-(canvas_height*((minyval-miny)/rangey))), options.spotRadius, undefined, options.minSpotColor);
}
if (options.spotRadius && options.maxSpotColor) {
var x = xvalues[yvalues.indexOf(maxyval)];
target.drawCircle(canvas_left+Math.round((x-minx)*(canvas_width/rangex)), canvas_top+Math.round(canvas_height-(canvas_height*((maxyval-miny)/rangey))), options.spotRadius, undefined, options.maxSpotColor);
}
}
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
$.fn.sparkline.bar = function(values, options, width, height) {
values = $.map(values, Number);
var options = $.extend({
type : 'bar',
barColor : '#00f',
negBarColor : '#f44',
zeroColor: undefined,
zeroAxis : undefined,
barWidth : 4,
barSpacing : 1,
chartRangeMax: undefined,
chartRangeMin: undefined
}, options ? options : {});
var width = (values.length * options.barWidth) + ((values.length-1) * options.barSpacing);
var max = Math.max.apply(Math, values);
var min = Math.min.apply(Math, values);
if (options.chartRangeMin!=undefined && options.chartRangeMin<min) {
min = options.chartRangeMin;
}
if (options.chartRangeMax!=undefined && options.chartRangeMax>max) {
max = options.chartRangeMax;
}
if (options.zeroAxis == undefined) options.zeroAxis = min<0;
var range = max-min == 0 ? 1 : max-min;
var target = $(this).simpledraw(width, height);
if (target) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
var yzero = min<0 && options.zeroAxis ? canvas_height-Math.round(canvas_height * (Math.abs(min)/range))-1 : canvas_height-1;
for(var i=0; i<values.length; i++) {
var x = i*(options.barWidth+options.barSpacing);
var val = values[i];
var color = (val < 0) ? options.negBarColor : options.barColor;
if (options.zeroAxis && min<0) {
var height = Math.round(canvas_height*((Math.abs(val)/range)))+1;
var y = (val < 0) ? yzero : yzero-height;
} else {
var height = Math.round(canvas_height*((val-min)/range))+1;
var y = canvas_height-height;
}
if (val==0 && options.zeroColor!=undefined) {
color = options.zeroColor;
}
target.drawRect(x, y, options.barWidth-1, height-1, color, color);
}
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
$.fn.sparkline.tristate = function(values, options, width, height) {
values = $.map(values, Number);
var options = $.extend({
barWidth : 4,
barSpacing : 1,
posBarColor: '#6f6',
negBarColor : '#f44',
zeroBarColor : '#999',
colorMap : {}
}, options);
var width = (values.length * options.barWidth) + ((values.length-1) * options.barSpacing);
var target = $(this).simpledraw(width, height);
if (target) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
var half_height = Math.round(canvas_height/2);
for(var i=0; i<values.length; i++) {
var x = i*(options.barWidth+options.barSpacing);
if (values[i] < 0) {
var y = half_height;
var height = half_height-1;
var color = options.negBarColor;
} else if (values[i] > 0) {
var y = 0;
var height = half_height-1;
var color = options.posBarColor;
} else {
var y = half_height-1;
var height = 2;
var color = options.zeroBarColor;
}
if (options.colorMap[values[i]]) {
color = options.colorMap[values[i]];
}
target.drawRect(x, y, options.barWidth-1, height-1, color, color);
}
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
$.fn.sparkline.discrete = function(values, options, width, height) {
values = $.map(values, Number);
var options = $.extend({
lineHeight: 'auto',
thresholdColor: undefined,
thresholdValue : 0,
chartRangeMax: undefined,
chartRangeMin: undefined
}, options);
width = options.width=='auto' ? values.length*2 : width;
var interval = Math.floor(width / values.length);
var target = $(this).simpledraw(width, height);
if (target) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
var line_height = options.lineHeight == 'auto' ? Math.round(canvas_height * 0.3) : options.lineHeight;
var pheight = canvas_height - line_height;
var min = Math.min.apply(Math, values);
var max = Math.max.apply(Math, values);
if (options.chartRangeMin!=undefined && options.chartRangeMin<min) {
min = options.chartRangeMin;
}
if (options.chartRangeMax!=undefined && options.chartRangeMax>max) {
max = options.chartRangeMax;
}
var range = max-min;
for(var i=0; i<values.length; i++) {
var val = values[i];
var x = (i*interval);
var ytop = Math.round(pheight-pheight*((val-min)/range));
target.drawLine(x, ytop, x, ytop+line_height, (options.thresholdColor && val < options.thresholdValue) ? options.thresholdColor : options.lineColor);
}
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
$.fn.sparkline.bullet = function(values, options, width, height) {
values = $.map(values, Number);
// target, performance, range1, range2, range3
var options = $.extend({
targetColor : 'red',
targetWidth : 3, // width of the target bar in pixels
performanceColor : 'blue',
rangeColors : ['#D3DAFE', '#A8B6FF', '#7F94FF' ],
base : undefined // set this to a number to change the base start number
}, options);
width = options.width=='auto' ? '4.0em' : width;
var target = $(this).simpledraw(width, height);
if (target && values.length>1) {
var canvas_width = target.pixel_width-Math.ceil(options.targetWidth/2);
var canvas_height = target.pixel_height;
var min = Math.min.apply(Math, values);
var max = Math.max.apply(Math, values);
if (options.base == undefined) {
var min = min < 0 ? min : 0;
} else {
min = options.base;
}
var range = max-min;
// draw range values
for(i=2; i<values.length; i++) {
var rangeval = parseInt(values[i]);
var rangewidth = Math.round(canvas_width*((rangeval-min)/range));
target.drawRect(0, 0, rangewidth-1, canvas_height-1, options.rangeColors[i-2], options.rangeColors[i-2]);
}
// draw the performance bar
var perfval = parseInt(values[1]);
var perfwidth = Math.round(canvas_width*((perfval-min)/range));
target.drawRect(0, Math.round(canvas_height*0.3), perfwidth-1, Math.round(canvas_height*0.4)-1, options.performanceColor, options.performanceColor);
// draw the target linej
var targetval = parseInt(values[0]);
var x = Math.round(canvas_width*((targetval-min)/range)-(options.targetWidth/2));
var targettop = Math.round(canvas_height*0.10);
var targetheight = canvas_height-(targettop*2);
target.drawRect(x, targettop, options.targetWidth-1, targetheight-1, options.targetColor, options.targetColor);
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
$.fn.sparkline.pie = function(values, options, width, height) {
values = $.map(values, Number);
var options = $.extend({
sliceColors : ['#f00', '#0f0', '#00f']
}, options);
width = options.width=='auto' ? height : width;
var target = $(this).simpledraw(width, height);
if (target && values.length>1) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
var radius = Math.floor(Math.min(canvas_width, canvas_height)/2);
var total = 0;
for(var i=0; i<values.length; i++)
total += values[i];
var next = 0;
if (options.offset) {
next += (2*Math.PI)*(options.offset/360);
}
var circle = 2*Math.PI;
for(var i=0; i<values.length; i++) {
var start = next;
var end = next;
if (total > 0) { // avoid divide by zero
end = next + (circle*(values[i]/total));
}
target.drawPieSlice(radius, radius, radius, start, end, undefined, options.sliceColors[i % options.sliceColors.length]);
next = end;
}
}
};
function quartile(values, q) {
if (q==2) {
var vl2 = Math.floor(values.length/2);
return values.length % 2 ? values[vl2] : (values[vl2]+values[vl2+1])/2;
} else {
var vl4 = Math.floor(values.length/4);
return values.length % 2 ? (values[vl4*q]+values[vl4*q+1])/2 : values[vl4*q];
}
};
$.fn.sparkline.box = function(values, options, width, height) {
values = $.map(values, Number);
var options = $.extend({
raw: false,
boxLineColor: 'black',
boxFillColor: '#cdf',
whiskerColor: 'black',
outlierLineColor: '#333',
outlierFillColor: 'white',
medianColor: 'red',
showOutliers: true,
outlierIQR: 1.5,
spotRadius: 1.5,
target: undefined,
targetColor: '#4a2',
chartRangeMax: undefined,
chartRangeMin: undefined
}, options);
width = options.width=='auto' ? '4.0em' : width;
minvalue = options.chartRangeMin==undefined ? Math.min.apply(Math, values) : options.chartRangeMin;
maxvalue = options.chartRangeMax==undefined ? Math.max.apply(Math, values) : options.chartRangeMax;
var target = $(this).simpledraw(width, height);
if (target && values.length>1) {
var canvas_width = target.pixel_width;
var canvas_height = target.pixel_height;
if (options.raw) {
if (options.showOutliers && values.length>5) {
var loutlier=values[0], lwhisker=values[1], q1=values[2], q2=values[3], q3=values[4], rwhisker=values[5], routlier=values[6];
} else {
var lwhisker=values[0], q1=values[1], q2=values[2], q3=values[3], rwhisker=values[4];
}
} else {
values.sort(function(a, b) { return a-b; });
var q1 = quartile(values, 1);
var q2 = quartile(values, 2);
var q3 = quartile(values, 3);
var iqr = q3-q1;
if (options.showOutliers) {
var lwhisker=undefined, rwhisker=undefined;
for(var i=0; i<values.length; i++) {
if (lwhisker==undefined && values[i] > q1-(iqr*options.outlierIQR))
lwhisker = values[i];
if (values[i] < q3+(iqr*options.outlierIQR))
rwhisker = values[i];
}
var loutlier = values[0];
var routlier = values[values.length-1];
} else {
var lwhisker = values[0];
var rwhisker = values[values.length-1];
}
}
var unitsize = canvas_width / (maxvalue-minvalue+1);
var canvas_left = 0;
if (options.showOutliers) {
canvas_left = Math.ceil(options.spotRadius);
canvas_width -= 2*Math.ceil(options.spotRadius);
var unitsize = canvas_width / (maxvalue-minvalue+1);
if (loutlier < lwhisker)
target.drawCircle((loutlier-minvalue)*unitsize+canvas_left, canvas_height/2, options.spotRadius, options.outlierLineColor, options.outlierFillColor);
if (routlier > rwhisker)
target.drawCircle((routlier-minvalue)*unitsize+canvas_left, canvas_height/2, options.spotRadius, options.outlierLineColor, options.outlierFillColor);
}
// box
target.drawRect(
Math.round((q1-minvalue)*unitsize+canvas_left),
Math.round(canvas_height*0.1),
Math.round((q3-q1)*unitsize),
Math.round(canvas_height*0.8),
options.boxLineColor,
options.boxFillColor);
// left whisker
target.drawLine(
Math.round((lwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/2),
Math.round((q1-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/2),
options.lineColor);
target.drawLine(
Math.round((lwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/4),
Math.round((lwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height-canvas_height/4),
options.whiskerColor);
// right whisker
target.drawLine(Math.round((rwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/2),
Math.round((q3-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/2),
options.lineColor);
target.drawLine(
Math.round((rwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height/4),
Math.round((rwhisker-minvalue)*unitsize+canvas_left),
Math.round(canvas_height-canvas_height/4),
options.whiskerColor);
// median line
target.drawLine(
Math.round((q2-minvalue)*unitsize+canvas_left),
Math.round(canvas_height*0.1),
Math.round((q2-minvalue)*unitsize+canvas_left),
Math.round(canvas_height*0.9),
options.medianColor);
if (options.target) {
var size = Math.ceil(options.spotRadius);
target.drawLine(
Math.round((options.target-minvalue)*unitsize+canvas_left),
Math.round((canvas_height/2)-size),
Math.round((options.target-minvalue)*unitsize+canvas_left),
Math.round((canvas_height/2)+size),
options.targetColor);
target.drawLine(
Math.round((options.target-minvalue)*unitsize+canvas_left-size),
Math.round(canvas_height/2),
Math.round((options.target-minvalue)*unitsize+canvas_left+size),
Math.round(canvas_height/2),
options.targetColor);
}
} else {
// Remove the tag contents if sparklines aren't supported
this.innerHTML = '';
}
};
// IE doesn't provide an indexOf method for arrays :-(
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function(entry) {
for(var i=0; i<this.length; i++) {
if (this[i] == entry)
return i;
}
return -1;
}
}
// Setup a very simple "virtual canvas" to make drawing the few shapes we need easier
// This is accessible as $(foo).simpledraw()
if ($.browser.msie && !document.namespaces['v']) {
document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
}
if ($.browser.hasCanvas == undefined) {
var t = document.createElement('canvas');
$.browser.hasCanvas = t.getContext!=undefined;
}
var vcanvas_base = function(width, height, target) {
};
vcanvas_base.prototype = {
init : function(width, height, target) {
this.width = width;
this.height = height;
this.target = target;
if (target[0]) target=target[0];
target.vcanvas = this;
},
drawShape : function(path, lineColor, fillColor) {
alert('drawShape not implemented');
},
drawLine : function(x1, y1, x2, y2, lineColor) {
return this.drawShape([ [x1,y1], [x2,y2] ], lineColor);
},
drawCircle : function(x, y, radius, lineColor, fillColor) {
alert('drawCircle not implemented');
},
drawPieSlice : function(x, y, radius, startAngle, endAngle, lineColor, fillColor) {
alert('drawPieSlice not implemented');
},
drawRect : function(x, y, width, height, lineColor, fillColor) {
alert('drawRect not implemented');
},
getElement : function() {
return this.canvas;
},
_insert : function(el, target) {
$(target).html(el);
}
};
var vcanvas_canvas = function(width, height, target) {
return this.init(width, height, target);
};
vcanvas_canvas.prototype = $.extend(new vcanvas_base, {
_super : vcanvas_base.prototype,
init : function(width, height, target) {
this._super.init(width, height, target);
this.canvas = document.createElement('canvas');
if (target[0]) target=target[0];
target.vcanvas = this;
$(this.canvas).css({ display:'inline-block', width:width, height:height, verticalAlign:'top' });
this._insert(this.canvas, target);
this.pixel_height = $(this.canvas).height();
this.pixel_width = $(this.canvas).width();
this.canvas.width = this.pixel_width;
this.canvas.height = this.pixel_height;
$(this.canvas).css({width: this.pixel_width, height: this.pixel_height});
},
_getContext : function(lineColor, fillColor) {
var context = this.canvas.getContext('2d');
if (lineColor != undefined)
context.strokeStyle = lineColor;
context.lineWidth = 1;
if (fillColor != undefined)
context.fillStyle = fillColor;
return context;
},
drawShape : function(path, lineColor, fillColor) {
var context = this._getContext(lineColor, fillColor);
context.beginPath();
context.moveTo(path[0][0]+0.5, path[0][1]+0.5);
for(var i=1; i<path.length; i++) {
context.lineTo(path[i][0]+0.5, path[i][1]+0.5); // the 0.5 offset gives us crisp pixel-width lines
}
if (lineColor != undefined) {
context.stroke();
}
if (fillColor != undefined) {
context.fill();
}
},
drawCircle : function(x, y, radius, lineColor, fillColor) {
var context = this._getContext(lineColor, fillColor);
context.beginPath();
context.arc(x, y, radius, 0, 2*Math.PI, false);
if (lineColor != undefined) {
context.stroke();
}
if (fillColor != undefined) {
context.fill();
}
},
drawPieSlice : function(x, y, radius, startAngle, endAngle, lineColor, fillColor) {
var context = this._getContext(lineColor, fillColor);
context.beginPath();
context.moveTo(x, y);
context.arc(x, y, radius, startAngle, endAngle, false);
context.lineTo(x, y);
context.closePath();
if (lineColor != undefined) {
context.stroke();
}
if (fillColor) {
context.fill();
}
},
drawRect : function(x, y, width, height, lineColor, fillColor) {
return this.drawShape([ [x,y], [x+width, y], [x+width, y+height], [x, y+height], [x, y] ], lineColor, fillColor);
}
});
var vcanvas_vml = function(width, height, target) {
return this.init(width, height, target);
};
vcanvas_vml.prototype = $.extend(new vcanvas_base, {
_super : vcanvas_base.prototype,
init : function(width, height, target) {
this._super.init(width, height, target);
if (target[0]) target=target[0];
target.vcanvas = this;
this.canvas = document.createElement('span');
$(this.canvas).css({ display:'inline-block', position: 'relative', overflow:'hidden', width:width, height:height, margin:'0px', padding:'0px', verticalAlign: 'top'});
this._insert(this.canvas, target);
this.pixel_height = $(this.canvas).height();
this.pixel_width = $(this.canvas).width();
this.canvas.width = this.pixel_width;
this.canvas.height = this.pixel_height;;
var groupel = '<v:group coordorigin="0 0" coordsize="'+this.pixel_width+' '+this.pixel_height+'"'
+' style="position:absolute;top:0;left:0;width:'+this.pixel_width+'px;height='+this.pixel_height+'px;"></v:group>';
this.canvas.insertAdjacentHTML('beforeEnd', groupel);
this.group = $(this.canvas).children()[0];
},
drawShape : function(path, lineColor, fillColor) {
var vpath = [];
for(var i=0; i<path.length; i++) {
vpath[i] = ''+(path[i][0])+','+(path[i][1]);
}
var initial = vpath.splice(0,1);
var stroke = lineColor == undefined ? ' stroked="false" ' : ' strokeWeight="1" strokeColor="'+lineColor+'" ';
var fill = fillColor == undefined ? ' filled="false"' : ' fillColor="'+fillColor+'" filled="true" ';
var closed = vpath[0] == vpath[vpath.length-1] ? 'x ' : '';
var vel = '<v:shape coordorigin="0 0" coordsize="'+this.pixel_width+' '+this.pixel_height+'" '
+ stroke
+ fill
+' style="position:absolute;left:0px;top:0px;height:'+this.pixel_height+'px;width:'+this.pixel_width+'px;padding:0px;margin:0px;" '
+' path="m '+initial+' l '+vpath.join(', ')+' '+closed+'e">'
+' </v:shape>';
this.group.insertAdjacentHTML('beforeEnd', vel);
},
drawCircle : function(x, y, radius, lineColor, fillColor) {
x -= radius+1;
y -= radius+1;
var stroke = lineColor == undefined ? ' stroked="false" ' : ' strokeWeight="1" strokeColor="'+lineColor+'" ';
var fill = fillColor == undefined ? ' filled="false"' : ' fillColor="'+fillColor+'" filled="true" ';
var vel = '<v:oval '
+ stroke
+ fill
+' style="position:absolute;top:'+y+'px; left:'+x+'px; width:'+(radius*2)+'px; height:'+(radius*2)+'px"></v:oval>';
this.group.insertAdjacentHTML('beforeEnd', vel);
},
drawPieSlice : function(x, y, radius, startAngle, endAngle, lineColor, fillColor) {
if (startAngle == endAngle) {
return; // VML seems to have problem when start angle equals end angle.
}
if ((endAngle - startAngle) == (2*Math.PI)) {
startAngle = 0.0; // VML seems to have a problem when drawing a full circle that doesn't start 0
endAngle = (2*Math.PI);
}
var startx = x + Math.round(Math.cos(startAngle) * radius);
var starty = y + Math.round(Math.sin(startAngle) * radius);
var endx = x + Math.round(Math.cos(endAngle) * radius);
var endy = y + Math.round(Math.sin(endAngle) * radius);
var vpath = [ x-radius, y-radius, x+radius, y+radius, startx, starty, endx, endy ];
var stroke = lineColor == undefined ? ' stroked="false" ' : ' strokeWeight="1" strokeColor="'+lineColor+'" ';
var fill = fillColor == undefined ? ' filled="false"' : ' fillColor="'+fillColor+'" filled="true" ';
var vel = '<v:shape coordorigin="0 0" coordsize="'+this.pixel_width+' '+this.pixel_height+'" '
+ stroke
+ fill
+' style="position:absolute;left:0px;top:0px;height:'+this.pixel_height+'px;width:'+this.pixel_width+'px;padding:0px;margin:0px;" '
+' path="m '+x+','+y+' wa '+vpath.join(', ')+' x e">'
+' </v:shape>';
this.group.insertAdjacentHTML('beforeEnd', vel);
},
drawRect : function(x, y, width, height, lineColor, fillColor) {
return this.drawShape( [ [x, y], [x, y+height], [x+width, y+height], [x+width, y], [x, y] ], lineColor, fillColor);
}
});
})(jQuery);