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justgage.js
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justgage.js
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/**
* JustGage - this is work-in-progress, unreleased, unofficial code, so it might not work top-notch :)
* Check http://www.justgage.com for official releases
* Licensed under MIT.
* @author Bojan Djuricic (@Toorshia)
*
* LATEST UPDATES
*
* -----------------------------
* March 16, 2014.
* -----------------------------
* fix - https://github.com/toorshia/justgage/issues/112
*
* -----------------------------
* February 16, 2014.
* -----------------------------
* fix - https://github.com/toorshia/justgage/issues/102
* -----------------------------
* April 25, 2013.
* -----------------------------
* use HTML5 data-* attributes of the DOM Element to render the gauge (which overrides the constructor options).
* -----------------------------
* April 18, 2013.
* -----------------------------
* parentNode - use this instead of id, to attach gauge to node which is outside of DOM tree - https://github.com/toorshia/justgage/issues/48
* width - force gauge width
* height - force gauge height
* -----------------------------
* April 17, 2013.
* -----------------------------
* fix - https://github.com/toorshia/justgage/issues/49
* -----------------------------
* April 01, 2013.
* -----------------------------
* fix - https://github.com/toorshia/justgage/issues/46
* -----------------------------
* March 26, 2013.
* -----------------------------
* customSectors - define specific color for value range (0-10 : red, 10-30 : blue etc.)
* -----------------------------
* March 23, 2013.
* -----------------------------
* counter - option to animate value in counting fashion
* fix - https://github.com/toorshia/justgage/issues/45
* -----------------------------
* March 13, 2013.
* -----------------------------
* refresh method - added optional 'max' parameter to use when you need to update max value
* -----------------------------
* February 26, 2013.
* -----------------------------
* decimals - option to define/limit number of decimals when not using humanFriendly or customRenderer to display value
* fixed a missing parameters bug when calling generateShadow() for IE < 9
* -----------------------------
* December 31, 2012.
* -----------------------------
* fixed text y-position for hidden divs - workaround for Raphael <tspan> 'dy' bug - https://github.com/DmitryBaranovskiy/raphael/issues/491
* 'show' parameters, like showMinMax are now 'hide' because I am lame developer - please update these in your setups
* Min and Max labels are now auto-off when in donut mode
* Start angle in donut mode is now 90
* donutStartAngle - option to define start angle for donut
* -----------------------------
* November 25, 2012.
* -----------------------------
* Option to define custom rendering function for displayed value
* -----------------------------
* November 19, 2012.
* -----------------------------
* Config.value is now updated after gauge refresh
* -----------------------------
* November 13, 2012.
* -----------------------------
* Donut display mode added
* Option to hide value label
* Option to enable responsive gauge size
* Removed default title attribute
* Option to accept min and max defined as string values
* Option to configure value symbol
* Fixed bad aspect ratio calculations
* Option to configure minimum font size for all texts
* Option to show shorthand big numbers (human friendly)
*/
JustGage = function(config) {
var obj = this;
// Helps in case developer wants to debug it. unobtrusive
if (config === null || config === undefined) {
console.log('* justgage: Make sure to pass options to the constructor!');
return false;
}
var node;
if (config.id !== null && config.id !== undefined) {
node= document.getElementById(config.id);
if (!node) {
console.log('* justgage: No element with id : %s found', config.id);
return false;
}
} else if (config.parentNode !== null && config.parentNode !== undefined) {
node = config.parentNode;
} else {
console.log('* justgage: Make sure to pass the existing element id or parentNode to the constructor.');
return false;
}
var dataset = node.dataset ? node.dataset : {};
// configurable parameters
obj.config =
{
// id : string
// this is container element id
id : config.id,
// parentNode : node object
// this is container element
parentNode : obj.kvLookup('parentNode', config, dataset, null),
// width : int
// gauge width
width : obj.kvLookup('width', config, dataset, null),
// height : int
// gauge height
height : obj.kvLookup('height', config, dataset, null),
// title : string
// gauge title
title : obj.kvLookup('title', config, dataset, ""),
// titleFontColor : string
// color of gauge title
titleFontColor : obj.kvLookup('titleFontColor', config, dataset, "#999999"),
// value : float
// value gauge is showing
value : obj.kvLookup('value', config, dataset, 0, 'float'),
// valueFontColor : string
// color of label showing current value
valueFontColor : obj.kvLookup('valueFontColor', config, dataset, "#010101"),
// symbol : string
// special symbol to show next to value
symbol : obj.kvLookup('symbol', config, dataset, ''),
// min : float
// min value
min : obj.kvLookup('min', config, dataset, 0, 'float'),
// max : float
// max value
max : obj.kvLookup('max', config, dataset, 100, 'float'),
// humanFriendlyDecimal : int
// number of decimal places for our human friendly number to contain
humanFriendlyDecimal : obj.kvLookup('humanFriendlyDecimal', config, dataset, 0),
// textRenderer: func
// function applied before rendering text
textRenderer : obj.kvLookup('textRenderer', config, dataset, null),
// gaugeWidthScale : float
// width of the gauge element
gaugeWidthScale : obj.kvLookup('gaugeWidthScale', config, dataset, 1.0),
// gaugeColor : string
// background color of gauge element
gaugeColor : obj.kvLookup('gaugeColor', config, dataset, "#edebeb"),
// label : string
// text to show below value
label : obj.kvLookup('label', config, dataset, ''),
// labelFontColor : string
// color of label showing label under value
labelFontColor : obj.kvLookup('labelFontColor', config, dataset, "#b3b3b3"),
// shadowOpacity : int
// 0 ~ 1
shadowOpacity : obj.kvLookup('shadowOpacity', config, dataset, 0.2),
// shadowSize: int
// inner shadow size
shadowSize : obj.kvLookup('shadowSize', config, dataset, 5),
// shadowVerticalOffset : int
// how much shadow is offset from top
shadowVerticalOffset : obj.kvLookup('shadowVerticalOffset', config, dataset, 3),
// levelColors : string[]
// colors of indicator, from lower to upper, in RGB format
levelColors : obj.kvLookup('levelColors', config, dataset, [ "#a9d70b", "#f9c802", "#ff0000" ], 'array', ','),
// startAnimationTime : int
// length of initial animation
startAnimationTime : obj.kvLookup('startAnimationTime', config, dataset, 700),
// startAnimationType : string
// type of initial animation (linear, >, <, <>, bounce)
startAnimationType : obj.kvLookup('startAnimationType', config, dataset, '>'),
// refreshAnimationTime : int
// length of refresh animation
refreshAnimationTime : obj.kvLookup('refreshAnimationTime', config, dataset, 700),
// refreshAnimationType : string
// type of refresh animation (linear, >, <, <>, bounce)
refreshAnimationType : obj.kvLookup('refreshAnimationType', config, dataset, '>'),
// donutStartAngle : int
// angle to start from when in donut mode
donutStartAngle : obj.kvLookup('donutStartAngle', config, dataset, 90),
// valueMinFontSize : int
// absolute minimum font size for the value
valueMinFontSize : obj.kvLookup('valueMinFontSize', config, dataset, 16),
// titleMinFontSize
// absolute minimum font size for the title
titleMinFontSize : obj.kvLookup('titleMinFontSize', config, dataset, 10),
// labelMinFontSize
// absolute minimum font size for the label
labelMinFontSize : obj.kvLookup('labelMinFontSize', config, dataset, 10),
// minLabelMinFontSize
// absolute minimum font size for the minimum label
minLabelMinFontSize : obj.kvLookup('minLabelMinFontSize', config, dataset, 10),
// maxLabelMinFontSize
// absolute minimum font size for the maximum label
maxLabelMinFontSize : obj.kvLookup('maxLabelMinFontSize', config, dataset, 10),
// hideValue : bool
// hide value text
hideValue : obj.kvLookup('hideValue', config, dataset, false),
// hideMinMax : bool
// hide min and max values
hideMinMax : obj.kvLookup('hideMinMax', config, dataset, false),
// hideInnerShadow : bool
// hide inner shadow
hideInnerShadow : obj.kvLookup('hideInnerShadow', config, dataset, false),
// humanFriendly : bool
// convert large numbers for min, max, value to human friendly (e.g. 1234567 -> 1.23M)
humanFriendly : obj.kvLookup('humanFriendly', config, dataset, false),
// noGradient : bool
// whether to use gradual color change for value, or sector-based
noGradient : obj.kvLookup('noGradient', config, dataset, false),
// donut : bool
// show full donut gauge
donut : obj.kvLookup('donut', config, dataset, false),
// relativeGaugeSize : bool
// whether gauge size should follow changes in container element size
relativeGaugeSize : obj.kvLookup('relativeGaugeSize', config, dataset, false),
// counter : bool
// animate level number change
counter : obj.kvLookup('counter', config, dataset, false),
// decimals : int
// number of digits after floating point
decimals : obj.kvLookup('decimals', config, dataset, 0),
// customSectors : [] of objects
// number of digits after floating point
customSectors : obj.kvLookup('customSectors', config, dataset, []),
// usePercentRange : boolean
// use percent-based ranges for customSectors
usePercentRange : obj.kvLookup('usePercentRange', config, dataset, false),
// formatNumber: boolean
// formats numbers with commas where appropriate
formatNumber : obj.kvLookup('formatNumber', config, dataset, false)
};
// variables
var
canvasW,
canvasH,
widgetW,
widgetH,
aspect,
dx,
dy,
titleFontSize,
titleX,
titleY,
valueFontSize,
valueX,
valueY,
labelFontSize,
labelX,
labelY,
minFontSize,
minX,
minY,
maxFontSize,
maxX,
maxY;
// overflow values
if (obj.config.value > obj.config.max) obj.config.value = obj.config.max;
if (obj.config.value < obj.config.min) obj.config.value = obj.config.min;
obj.originalValue = obj.kvLookup('value', config, dataset, -1, 'float');
// create canvas
if (obj.config.id !== null && (document.getElementById(obj.config.id)) !== null) {
obj.canvas = Raphael(obj.config.id, "100%", "100%");
} else if (obj.config.parentNode !== null) {
obj.canvas = Raphael(obj.config.parentNode, "100%", "100%");
}
if (obj.config.relativeGaugeSize === true) {
obj.canvas.setViewBox(0, 0, 200, 150, true);
}
// canvas dimensions
if (obj.config.relativeGaugeSize === true) {
canvasW = 200;
canvasH = 150;
} else if (obj.config.width !== null && obj.config.height !== null) {
canvasW = obj.config.width;
canvasH = obj.config.height;
} else if (obj.config.parentNode !== null) {
obj.canvas.setViewBox(0, 0, 200, 150, true);
canvasW = 200;
canvasH = 150;
} else {
canvasW = getStyle(document.getElementById(obj.config.id), "width").slice(0, -2) * 1;
canvasH = getStyle(document.getElementById(obj.config.id), "height").slice(0, -2) * 1;
}
// widget dimensions
if (obj.config.donut === true) {
// DONUT *******************************
// width more than height
if(canvasW > canvasH) {
widgetH = canvasH;
widgetW = widgetH;
// width less than height
} else if (canvasW < canvasH) {
widgetW = canvasW;
widgetH = widgetW;
// if height don't fit, rescale both
if(widgetH > canvasH) {
aspect = widgetH / canvasH;
widgetH = widgetH / aspect;
widgetW = widgetH / aspect;
}
// equal
} else {
widgetW = canvasW;
widgetH = widgetW;
}
// delta
dx = (canvasW - widgetW)/2;
dy = (canvasH - widgetH)/2;
// title
titleFontSize = ((widgetH / 8) > 10) ? (widgetH / 10) : 10;
titleX = dx + widgetW / 2;
titleY = dy + widgetH / 11;
// value
valueFontSize = ((widgetH / 6.4) > 16) ? (widgetH / 5.4) : 18;
valueX = dx + widgetW / 2;
if(obj.config.label !== '') {
valueY = dy + widgetH / 1.85;
} else {
valueY = dy + widgetH / 1.7;
}
// label
labelFontSize = ((widgetH / 16) > 10) ? (widgetH / 16) : 10;
labelX = dx + widgetW / 2;
labelY = valueY + labelFontSize;
// min
minFontSize = ((widgetH / 16) > 10) ? (widgetH / 16) : 10;
minX = dx + (widgetW / 10) + (widgetW / 6.666666666666667 * obj.config.gaugeWidthScale) / 2 ;
minY = labelY;
// max
maxFontSize = ((widgetH / 16) > 10) ? (widgetH / 16) : 10;
maxX = dx + widgetW - (widgetW / 10) - (widgetW / 6.666666666666667 * obj.config.gaugeWidthScale) / 2 ;
maxY = labelY;
} else {
// HALF *******************************
// width more than height
if(canvasW > canvasH) {
widgetH = canvasH;
widgetW = widgetH * 1.25;
//if width doesn't fit, rescale both
if(widgetW > canvasW) {
aspect = widgetW / canvasW;
widgetW = widgetW / aspect;
widgetH = widgetH / aspect;
}
// width less than height
} else if (canvasW < canvasH) {
widgetW = canvasW;
widgetH = widgetW / 1.25;
// if height don't fit, rescale both
if(widgetH > canvasH) {
aspect = widgetH / canvasH;
widgetH = widgetH / aspect;
widgetW = widgetH / aspect;
}
// equal
} else {
widgetW = canvasW;
widgetH = widgetW * 0.75;
}
// delta
dx = (canvasW - widgetW)/2;
dy = (canvasH - widgetH)/2;
// title
titleFontSize = ((widgetH / 8) > obj.config.titleMinFontSize) ? (widgetH / 10) : obj.config.titleMinFontSize;
titleX = dx + widgetW / 2;
titleY = dy + widgetH / 6.4;
// value
valueFontSize = ((widgetH / 6.5) > obj.config.valueMinFontSize) ? (widgetH / 6.5) : obj.config.valueMinFontSize;
valueX = dx + widgetW / 2;
valueY = dy + widgetH / 1.275;
// label
labelFontSize = ((widgetH / 16) > obj.config.labelMinFontSize) ? (widgetH / 16) : obj.config.labelMinFontSize;
labelX = dx + widgetW / 2;
labelY = valueY + valueFontSize / 2 + 5;
// min
minFontSize = ((widgetH / 16) > obj.config.minLabelMinFontSize) ? (widgetH / 16) : obj.config.minLabelMinFontSize;
minX = dx + (widgetW / 10) + (widgetW / 6.666666666666667 * obj.config.gaugeWidthScale) / 2 ;
minY = labelY;
// max
maxFontSize = ((widgetH / 16) > obj.config.maxLabelMinFontSize) ? (widgetH / 16) : obj.config.maxLabelMinFontSize;
maxX = dx + widgetW - (widgetW / 10) - (widgetW / 6.666666666666667 * obj.config.gaugeWidthScale) / 2 ;
maxY = labelY;
}
// parameters
obj.params = {
canvasW : canvasW,
canvasH : canvasH,
widgetW : widgetW,
widgetH : widgetH,
dx : dx,
dy : dy,
titleFontSize : titleFontSize,
titleX : titleX,
titleY : titleY,
valueFontSize : valueFontSize,
valueX : valueX,
valueY : valueY,
labelFontSize : labelFontSize,
labelX : labelX,
labelY : labelY,
minFontSize : minFontSize,
minX : minX,
minY : minY,
maxFontSize : maxFontSize,
maxX : maxX,
maxY : maxY
};
// var clear
canvasW, canvasH, widgetW, widgetH, aspect, dx, dy, titleFontSize, titleX, titleY, valueFontSize, valueX, valueY, labelFontSize, labelX, labelY, minFontSize, minX, minY, maxFontSize, maxX, maxY = null;
// pki - custom attribute for generating gauge paths
obj.canvas.customAttributes.pki = function (value, min, max, w, h, dx, dy, gws, donut) {
var alpha, Ro, Ri, Cx, Cy, Xo, Yo, Xi, Yi, path;
if (donut) {
alpha = (1 - 2 * (value - min) / (max - min)) * Math.PI;
Ro = w / 2 - w / 7;
Ri = Ro - w / 6.666666666666667 * gws;
Cx = w / 2 + dx;
Cy = h / 1.95 + dy;
Xo = w / 2 + dx + Ro * Math.cos(alpha);
Yo = h - (h - Cy) - Ro * Math.sin(alpha);
Xi = w / 2 + dx + Ri * Math.cos(alpha);
Yi = h - (h - Cy) - Ri * Math.sin(alpha);
path = "M" + (Cx - Ri) + "," + Cy + " ";
path += "L" + (Cx - Ro) + "," + Cy + " ";
if (value > ((max - min) / 2)) {
path += "A" + Ro + "," + Ro + " 0 0 1 " + (Cx + Ro) + "," + Cy + " ";
}
path += "A" + Ro + "," + Ro + " 0 0 1 " + Xo + "," + Yo + " ";
path += "L" + Xi + "," + Yi + " ";
if (value > ((max - min) / 2)) {
path += "A" + Ri + "," + Ri + " 0 0 0 " + (Cx + Ri) + "," + Cy + " ";
}
path += "A" + Ri + "," + Ri + " 0 0 0 " + (Cx - Ri) + "," + Cy + " ";
path += "Z ";
return { path: path };
} else {
alpha = (1 - (value - min) / (max - min)) * Math.PI;
Ro = w / 2 - w / 10;
Ri = Ro - w / 6.666666666666667 * gws;
Cx = w / 2 + dx;
Cy = h / 1.25 + dy;
Xo = w / 2 + dx + Ro * Math.cos(alpha);
Yo = h - (h - Cy) - Ro * Math.sin(alpha);
Xi = w / 2 + dx + Ri * Math.cos(alpha);
Yi = h - (h - Cy) - Ri * Math.sin(alpha);
path = "M" + (Cx - Ri) + "," + Cy + " ";
path += "L" + (Cx - Ro) + "," + Cy + " ";
path += "A" + Ro + "," + Ro + " 0 0 1 " + Xo + "," + Yo + " ";
path += "L" + Xi + "," + Yi + " ";
path += "A" + Ri + "," + Ri + " 0 0 0 " + (Cx - Ri) + "," + Cy + " ";
path += "Z ";
return { path: path };
}
// var clear
alpha, Ro, Ri, Cx, Cy, Xo, Yo, Xi, Yi, path = null;
};
// gauge
obj.gauge = obj.canvas.path().attr({
"stroke": "none",
"fill": obj.config.gaugeColor,
pki: [
obj.config.max,
obj.config.min,
obj.config.max,
obj.params.widgetW,
obj.params.widgetH,
obj.params.dx,
obj.params.dy,
obj.config.gaugeWidthScale,
obj.config.donut
]
});
// level
obj.level = obj.canvas.path().attr({
"stroke": "none",
"fill": getColor(obj.config.value, (obj.config.value - obj.config.min) / (obj.config.max - obj.config.min), obj.config.levelColors, obj.config.noGradient, obj.config.customSectors, obj.config.usePercentRange),
pki: [
obj.config.min,
obj.config.min,
obj.config.max,
obj.params.widgetW,
obj.params.widgetH,
obj.params.dx,
obj.params.dy,
obj.config.gaugeWidthScale,
obj.config.donut
]
});
if(obj.config.donut) {
obj.level.transform("r" + obj.config.donutStartAngle + ", " + (obj.params.widgetW/2 + obj.params.dx) + ", " + (obj.params.widgetH/1.95 + obj.params.dy));
}
// title
obj.txtTitle = obj.canvas.text(obj.params.titleX, obj.params.titleY, obj.config.title);
obj.txtTitle.attr({
"font-size":obj.params.titleFontSize,
"font-weight":"bold",
"font-family":"Arial",
"fill":obj.config.titleFontColor,
"fill-opacity":"1"
});
setDy(obj.txtTitle, obj.params.titleFontSize, obj.params.titleY);
// value
obj.txtValue = obj.canvas.text(obj.params.valueX, obj.params.valueY, 0);
obj.txtValue.attr({
"font-size":obj.params.valueFontSize,
"font-weight":"bold",
"font-family":"Arial",
"fill":obj.config.valueFontColor,
"fill-opacity":"0"
});
setDy(obj.txtValue, obj.params.valueFontSize, obj.params.valueY);
// label
obj.txtLabel = obj.canvas.text(obj.params.labelX, obj.params.labelY, obj.config.label);
obj.txtLabel.attr({
"font-size":obj.params.labelFontSize,
"font-weight":"normal",
"font-family":"Arial",
"fill":obj.config.labelFontColor,
"fill-opacity":"0"
});
setDy(obj.txtLabel, obj.params.labelFontSize, obj.params.labelY);
// min
obj.txtMinimum = obj.config.min;
if( obj.config.humanFriendly ) {
obj.txtMinimum = humanFriendlyNumber( obj.config.min, obj.config.humanFriendlyDecimal );
} else if ( obj.config.formatNumber ) {
obj.txtMinimum = formatNumber( obj.config.min );
}
obj.txtMin = obj.canvas.text(obj.params.minX, obj.params.minY, obj.txtMinimum);
obj.txtMin.attr({
"font-size":obj.params.minFontSize,
"font-weight":"normal",
"font-family":"Arial",
"fill":obj.config.labelFontColor,
"fill-opacity": (obj.config.hideMinMax || obj.config.donut)? "0" : "1"
});
setDy(obj.txtMin, obj.params.minFontSize, obj.params.minY);
// max
obj.txtMaximum = obj.config.max;
if( obj.config.formatNumber ) {
obj.txtMaximum = formatNumber( obj.txtMaximum );
} else if( obj.config.humanFriendly ) {
obj.txtMaximum = humanFriendlyNumber( obj.config.max, obj.config.humanFriendlyDecimal );
}
obj.txtMax = obj.canvas.text(obj.params.maxX, obj.params.maxY, obj.txtMaximum);
obj.txtMax.attr({
"font-size":obj.params.maxFontSize,
"font-weight":"normal",
"font-family":"Arial",
"fill":obj.config.labelFontColor,
"fill-opacity": (obj.config.hideMinMax || obj.config.donut)? "0" : "1"
});
setDy(obj.txtMax, obj.params.maxFontSize, obj.params.maxY);
var defs = obj.canvas.canvas.childNodes[1];
var svg = "http://www.w3.org/2000/svg";
if (ie !== 'undefined' && ie < 9 ) {
// VML mode - no SVG & SVG filter support
}
else if (ie !== 'undefined') {
onCreateElementNsReady(function() {
obj.generateShadow(svg, defs);
});
} else {
obj.generateShadow(svg, defs);
}
// var clear
defs, svg = null;
// set value to display
if(obj.config.textRenderer) {
obj.originalValue = obj.config.textRenderer(obj.originalValue);
} else if(obj.config.humanFriendly) {
obj.originalValue = humanFriendlyNumber( obj.originalValue, obj.config.humanFriendlyDecimal ) + obj.config.symbol;
} else if(obj.config.formatNumber) {
obj.originalValue = formatNumber(obj.originalValue) + obj.config.symbol;
} else {
obj.originalValue = (obj.originalValue * 1).toFixed(obj.config.decimals) + obj.config.symbol;
}
if(obj.config.counter === true) {
//on each animation frame
eve.on("raphael.anim.frame." + (obj.level.id), function() {
var currentValue = obj.level.attr("pki");
if(obj.config.textRenderer) {
obj.txtValue.attr("text", obj.config.textRenderer(Math.floor(currentValue[0])));
} else if(obj.config.humanFriendly) {
obj.txtValue.attr("text", humanFriendlyNumber( Math.floor(currentValue[0]), obj.config.humanFriendlyDecimal ) + obj.config.symbol);
} else if(obj.config.formatNumber) {
obj.txtValue.attr("text", formatNumber(Math.floor(currentValue[0])) + obj.config.symbol);
} else {
obj.txtValue.attr("text", (currentValue[0] * 1).toFixed(obj.config.decimals) + obj.config.symbol);
}
setDy(obj.txtValue, obj.params.valueFontSize, obj.params.valueY);
currentValue = null;
});
//on animation end
eve.on("raphael.anim.finish." + (obj.level.id), function() {
obj.txtValue.attr({"text" : obj.originalValue});
setDy(obj.txtValue, obj.params.valueFontSize, obj.params.valueY);
});
} else {
//on animation start
eve.on("raphael.anim.start." + (obj.level.id), function() {
obj.txtValue.attr({"text" : obj.originalValue});
setDy(obj.txtValue, obj.params.valueFontSize, obj.params.valueY);
});
}
// animate gauge level, value & label
obj.level.animate({
pki: [
obj.config.value,
obj.config.min,
obj.config.max,
obj.params.widgetW,
obj.params.widgetH,
obj.params.dx,
obj.params.dy,
obj.config.gaugeWidthScale,
obj.config.donut
]
}, obj.config.startAnimationTime, obj.config.startAnimationType);
obj.txtValue.animate({"fill-opacity":(obj.config.hideValue)?"0":"1"}, obj.config.startAnimationTime, obj.config.startAnimationType);
obj.txtLabel.animate({"fill-opacity":"1"}, obj.config.startAnimationTime, obj.config.startAnimationType);
};
//
// tiny helper function to lookup value of a key from two hash tables
// if none found, return defaultvalue
//
// key: string
// tablea: object
// tableb: DOMStringMap|object
// defval: string|integer|float|null
// datatype: return datatype
// delimiter: delimiter to be used in conjunction with datatype formatting
//
JustGage.prototype.kvLookup = function(key, tablea, tableb, defval, datatype, delimiter) {
var val = defval;
var canConvert = false;
if (!(key === null || key === undefined)) {
if (tableb !== null && tableb !== undefined && typeof tableb === "object" && key in tableb) {
val = tableb[key];
canConvert = true;
} else if (tablea !== null && tablea !== undefined && typeof tablea === "object" && key in tablea) {
val = tablea[key];
canConvert = true;
} else {
val = defval;
}
if (canConvert === true) {
if (datatype !== null && datatype !== undefined) {
switch(datatype) {
case 'int':
val = parseInt(val, 10);
break;
case 'float':
val = parseFloat(val);
break;
default:
break;
}
}
}
}
return val;
};
/** Refresh gauge level */
JustGage.prototype.refresh = function(val, max) {
var obj = this;
var displayVal, color, max = max || null;
// set new max
if(max !== null) {
obj.config.max = max;
obj.txtMaximum = obj.config.max;
if( obj.config.humanFriendly ) {
obj.txtMaximum = humanFriendlyNumber( obj.config.max, obj.config.humanFriendlyDecimal );
} else if( obj.config.formatNumber ) {
obj.txtMaximum = formatNumber( obj.config.max );
}
obj.txtMax.attr({"text" : obj.txtMaximum});
setDy(obj.txtMax, obj.params.maxFontSize, obj.params.maxY);
}
// overflow values
displayVal = val;
if ((val * 1) > (obj.config.max * 1)) {val = (obj.config.max * 1);}
if ((val * 1) < (obj.config.min * 1)) {val = (obj.config.min * 1);}
color = getColor(val, (val - obj.config.min) / (obj.config.max - obj.config.min), obj.config.levelColors, obj.config.noGradient, obj.config.customSectors, obj.config.usePercentRange);
if(obj.config.textRenderer) {
displayVal = obj.config.textRenderer(displayVal);
} else if( obj.config.humanFriendly ) {
displayVal = humanFriendlyNumber( displayVal, obj.config.humanFriendlyDecimal ) + obj.config.symbol;
} else if( obj.config.formatNumber ) {
displayVal = formatNumber((displayVal * 1).toFixed(obj.config.decimals)) + obj.config.symbol;
} else {
displayVal = (displayVal * 1).toFixed(obj.config.decimals) + obj.config.symbol;
}
obj.originalValue = displayVal;
obj.config.value = val * 1;
if(!obj.config.counter) {
obj.txtValue.attr({"text":displayVal});
setDy(obj.txtValue, obj.params.valueFontSize, obj.params.valueY);
}
obj.level.animate({
pki: [
obj.config.value,
obj.config.min,
obj.config.max,
obj.params.widgetW,
obj.params.widgetH,
obj.params.dx,
obj.params.dy,
obj.config.gaugeWidthScale,
obj.config.donut
],
"fill":color
}, obj.config.refreshAnimationTime, obj.config.refreshAnimationType);
// var clear
obj, displayVal, color, max = null;
};
/** Generate shadow */
JustGage.prototype.generateShadow = function(svg, defs) {
var obj = this;
var gaussFilter, feOffset, feGaussianBlur, feComposite1, feFlood, feComposite2, feComposite3;
// FILTER
gaussFilter = document.createElementNS(svg,"filter");
gaussFilter.setAttribute("id","inner-shadow");
defs.appendChild(gaussFilter);
// offset
feOffset = document.createElementNS(svg,"feOffset");
feOffset.setAttribute("dx", 0);
feOffset.setAttribute("dy", obj.config.shadowVerticalOffset);
gaussFilter.appendChild(feOffset);
// blur
feGaussianBlur = document.createElementNS(svg,"feGaussianBlur");
feGaussianBlur.setAttribute("result","offset-blur");
feGaussianBlur.setAttribute("stdDeviation", obj.config.shadowSize);
gaussFilter.appendChild(feGaussianBlur);
// composite 1
feComposite1 = document.createElementNS(svg,"feComposite");
feComposite1.setAttribute("operator","out");
feComposite1.setAttribute("in", "SourceGraphic");
feComposite1.setAttribute("in2","offset-blur");
feComposite1.setAttribute("result","inverse");
gaussFilter.appendChild(feComposite1);
// flood
feFlood = document.createElementNS(svg,"feFlood");
feFlood.setAttribute("flood-color","black");
feFlood.setAttribute("flood-opacity", obj.config.shadowOpacity);
feFlood.setAttribute("result","color");
gaussFilter.appendChild(feFlood);
// composite 2
feComposite2 = document.createElementNS(svg,"feComposite");
feComposite2.setAttribute("operator","in");
feComposite2.setAttribute("in", "color");
feComposite2.setAttribute("in2","inverse");
feComposite2.setAttribute("result","shadow");
gaussFilter.appendChild(feComposite2);
// composite 3
feComposite3 = document.createElementNS(svg,"feComposite");
feComposite3.setAttribute("operator","over");
feComposite3.setAttribute("in", "shadow");
feComposite3.setAttribute("in2","SourceGraphic");
gaussFilter.appendChild(feComposite3);
// set shadow
if (!obj.config.hideInnerShadow) {
obj.canvas.canvas.childNodes[2].setAttribute("filter", "url(#inner-shadow)");
obj.canvas.canvas.childNodes[3].setAttribute("filter", "url(#inner-shadow)");
}
// var clear
gaussFilter, feOffset, feGaussianBlur, feComposite1, feFlood, feComposite2, feComposite3 = null;
};
/** Get color for value */
function getColor(val, pct, col, noGradient, custSec, usePctRange) {
var no, inc, colors, percentage, rval, gval, bval, lower, upper, range, rangePct, pctLower, pctUpper, color;
var noGradient = noGradient || custSec.length > 0;
if(custSec.length > 0 && usePctRange){
val = val * 100;
}
if(custSec.length > 0) {
for(var i = 0; i < custSec.length; i++) {
if(val > custSec[i].lo && val <= custSec[i].hi) {
return custSec[i].color;
}
}
}
no = col.length;
if (no === 1) return col[0];
inc = (noGradient) ? (1 / no) : (1 / (no - 1));
colors = [];
for (i = 0; i < col.length; i++) {
percentage = (noGradient) ? (inc * (i + 1)) : (inc * i);
rval = parseInt((cutHex(col[i])).substring(0,2),16);
gval = parseInt((cutHex(col[i])).substring(2,4),16);
bval = parseInt((cutHex(col[i])).substring(4,6),16);
colors[i] = { pct: percentage, color: { r: rval, g: gval, b: bval } };
}
if(pct === 0) {
return 'rgb(' + [colors[0].color.r, colors[0].color.g, colors[0].color.b].join(',') + ')';
}
for (var j = 0; j < colors.length; j++) {
if (pct <= colors[j].pct) {
if (noGradient) {
return 'rgb(' + [colors[j].color.r, colors[j].color.g, colors[j].color.b].join(',') + ')';
} else {
lower = colors[j - 1];
upper = colors[j];
range = upper.pct - lower.pct;
rangePct = (pct - lower.pct) / range;
pctLower = 1 - rangePct;
pctUpper = rangePct;
color = {
r: Math.floor(lower.color.r * pctLower + upper.color.r * pctUpper),
g: Math.floor(lower.color.g * pctLower + upper.color.g * pctUpper),
b: Math.floor(lower.color.b * pctLower + upper.color.b * pctUpper)
};
return 'rgb(' + [color.r, color.g, color.b].join(',') + ')';
}
}
}
}
/** Fix Raphael display:none tspan dy attribute bug */
function setDy(elem, fontSize, txtYpos) {
if ((!ie || ie > 9) && elem.node.firstChild.attributes.dy) {
elem.node.firstChild.attributes.dy.value = 0;
}
}
/** Random integer */
function getRandomInt (min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
/** Cut hex */
function cutHex(str) {
return (str.charAt(0)=="#") ? str.substring(1,7):str;
}
/** Human friendly number suffix - From: http://stackoverflow.com/questions/2692323/code-golf-friendly-number-abbreviator */
function humanFriendlyNumber( n, d ) {
var p, d2, i, s;
p = Math.pow;
d2 = p(10, d);
i = 7;
while( i ) {
s = p(10,i--*3);
if( s <= n ) {
n = Math.round(n*d2/s)/d2+"KMGTPE"[i];
}
}
return n;
}
/** Format numbers with commas - From: http://stackoverflow.com/questions/2901102/how-to-print-a-number-with-commas-as-thousands-separators-in-javascript */
function formatNumber(x) {