/**
* @license Highstock JS v4.2.3 (2016-02-08)
* Solid angular gauge module
*
* (c) 2010-2016 Torstein Honsi
*
* License: www.highcharts.com/license
*/
(function (factory) {
if (typeof module === 'object' && module.exports) {
module.exports = factory;
} else {
factory(Highcharts);
}
}(function (H) {
'use strict';
var defaultPlotOptions = H.getOptions().plotOptions,
pInt = H.pInt,
pick = H.pick,
each = H.each,
colorAxisMethods,
UNDEFINED;
// The default options
defaultPlotOptions.solidgauge = H.merge(defaultPlotOptions.gauge, {
colorByPoint: true
});
// These methods are defined in the ColorAxis object, and copied here.
// If we implement an AMD system we should make ColorAxis a dependency.
colorAxisMethods = {
initDataClasses: function (userOptions) {
var axis = this,
chart = this.chart,
dataClasses,
colorCounter = 0,
options = this.options;
this.dataClasses = dataClasses = [];
each(userOptions.dataClasses, function (dataClass, i) {
var colors;
dataClass = H.merge(dataClass);
dataClasses.push(dataClass);
if (!dataClass.color) {
if (options.dataClassColor === 'category') {
colors = chart.options.colors;
dataClass.color = colors[colorCounter++];
// loop back to zero
if (colorCounter === colors.length) {
colorCounter = 0;
}
} else {
dataClass.color = axis.tweenColors(H.Color(options.minColor), H.Color(options.maxColor), i / (userOptions.dataClasses.length - 1));
}
}
});
},
initStops: function (userOptions) {
this.stops = userOptions.stops || [
[0, this.options.minColor],
[1, this.options.maxColor]
];
each(this.stops, function (stop) {
stop.color = H.Color(stop[1]);
});
},
/**
* Translate from a value to a color
*/
toColor: function (value, point) {
var pos,
stops = this.stops,
from,
to,
color,
dataClasses = this.dataClasses,
dataClass,
i;
if (dataClasses) {
i = dataClasses.length;
while (i--) {
dataClass = dataClasses[i];
from = dataClass.from;
to = dataClass.to;
if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) {
color = dataClass.color;
if (point) {
point.dataClass = i;
}
break;
}
}
} else {
if (this.isLog) {
value = this.val2lin(value);
}
pos = 1 - ((this.max - value) / (this.max - this.min));
i = stops.length;
while (i--) {
if (pos > stops[i][0]) {
break;
}
}
from = stops[i] || stops[i + 1];
to = stops[i + 1] || from;
// The position within the gradient
pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);
color = this.tweenColors(
from.color,
to.color,
pos
);
}
return color;
},
/*
* Return an intermediate color between two colors, according to pos where 0
* is the from color and 1 is the to color.
*/
tweenColors: function (from, to, pos) {
// Check for has alpha, because rgba colors perform worse due to lack of
// support in WebKit.
var hasAlpha,
ret;
// Unsupported color, return to-color (#3920)
if (!to.rgba.length || !from.rgba.length) {
ret = to.input || 'none';
// Interpolate
} else {
from = from.rgba;
to = to.rgba;
hasAlpha = (to[3] !== 1 || from[3] !== 1);
ret = (hasAlpha ? 'rgba(' : 'rgb(') +
Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' +
Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' +
Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) +
(hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')';
}
return ret;
}
};
/**
* Handle animation of the color attributes directly
*/
each(['fill', 'stroke'], function (prop) {
H.Fx.prototype[prop + 'Setter'] = function () {
this.elem.attr(prop, colorAxisMethods.tweenColors(H.Color(this.start), H.Color(this.end), this.pos));
};
});
// The series prototype
H.seriesTypes.solidgauge = H.extendClass(H.seriesTypes.gauge, {
type: 'solidgauge',
pointAttrToOptions: {}, // #4301, don't inherit line marker's attribs
bindAxes: function () {
var axis;
H.seriesTypes.gauge.prototype.bindAxes.call(this);
axis = this.yAxis;
H.extend(axis, colorAxisMethods);
// Prepare data classes
if (axis.options.dataClasses) {
axis.initDataClasses(axis.options);
}
axis.initStops(axis.options);
},
/**
* Draw the points where each point is one needle
*/
drawPoints: function () {
var series = this,
yAxis = series.yAxis,
center = yAxis.center,
options = series.options,
renderer = series.chart.renderer,
overshoot = options.overshoot,
overshootVal = overshoot && typeof overshoot === 'number' ? overshoot / 180 * Math.PI : 0;
H.each(series.points, function (point) {
var graphic = point.graphic,
rotation = yAxis.startAngleRad + yAxis.translate(point.y, null, null, null, true),
radius = (pInt(pick(point.options.radius, options.radius, 100)) * center[2]) / 200,
innerRadius = (pInt(pick(point.options.innerRadius, options.innerRadius, 60)) * center[2]) / 200,
shapeArgs,
d,
toColor = yAxis.toColor(point.y, point),
axisMinAngle = Math.min(yAxis.startAngleRad, yAxis.endAngleRad),
axisMaxAngle = Math.max(yAxis.startAngleRad, yAxis.endAngleRad),
minAngle,
maxAngle,
attribs;
if (toColor === 'none') { // #3708
toColor = point.color || series.color || 'none';
}
if (toColor !== 'none') {
point.color = toColor;
}
// Handle overshoot and clipping to axis max/min
rotation = Math.max(axisMinAngle - overshootVal, Math.min(axisMaxAngle + overshootVal, rotation));
// Handle the wrap option
if (options.wrap === false) {
rotation = Math.max(axisMinAngle, Math.min(axisMaxAngle, rotation));
}
minAngle = Math.min(rotation, yAxis.startAngleRad);
maxAngle = Math.max(rotation, yAxis.startAngleRad);
if (maxAngle - minAngle > 2 * Math.PI) {
maxAngle = minAngle + 2 * Math.PI;
}
point.shapeArgs = shapeArgs = {
x: center[0],
y: center[1],
r: radius,
innerR: innerRadius,
start: minAngle,
end: maxAngle,
fill: toColor
};
point.startR = radius; // For PieSeries.animate
if (graphic) {
d = shapeArgs.d;
graphic.animate(shapeArgs);
if (d) {
shapeArgs.d = d; // animate alters it
}
} else {
attribs = {
stroke: options.borderColor || 'none',
'stroke-width': options.borderWidth || 0,
fill: toColor,
'sweep-flag': 0
};
if (options.linecap !== 'square') {
attribs['stroke-linecap'] = attribs['stroke-linejoin'] = 'round';
}
point.graphic = renderer.arc(shapeArgs)
.attr(attribs)
.add(series.group);
}
});
},
/**
* Extend the pie slice animation by animating from start angle and up
*/
animate: function (init) {
if (!init) {
this.startAngleRad = this.yAxis.startAngleRad;
H.seriesTypes.pie.prototype.animate.call(this, init);
}
}
});
}));
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