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// ----------------------------------------------------------------------------------------------------------------
NETDATA.easypiechartPercentFromValueMinMax = function (state, value, min, max) {
if (typeof value !== 'number') {
value = 0;
}
if (typeof min !== 'number') {
min = 0;
}
if (typeof max !== 'number') {
max = 0;
}
if (min > max) {
let t = min;
min = max;
max = t;
}
if (min > value) {
min = value;
}
if (max < value) {
max = value;
}
state.legendFormatValueDecimalsFromMinMax(min, max);
if (state.tmp.easyPieChartMin === null && min > 0) {
min = 0;
}
if (state.tmp.easyPieChartMax === null && max < 0) {
max = 0;
}
let pcent;
if (min < 0 && max > 0) {
// it is both positive and negative
// zero at the top center of the chart
max = (-min > max) ? -min : max;
pcent = Math.round(value * 100 / max);
} else if (value >= 0 && min >= 0 && max >= 0) {
// clockwise
pcent = Math.round((value - min) * 100 / (max - min));
if (pcent === 0) {
pcent = 0.1;
}
} else {
// counter clockwise
pcent = Math.round((value - max) * 100 / (max - min));
if (pcent === 0) {
pcent = -0.1;
}
}
return pcent;
};
// ----------------------------------------------------------------------------------------------------------------
// easy-pie-chart
NETDATA.easypiechartInitialize = function (callback) {
if (typeof netdataNoEasyPieChart === 'undefined' || !netdataNoEasyPieChart) {
$.ajax({
url: NETDATA.easypiechart_js,
cache: true,
dataType: "script",
xhrFields: {withCredentials: true} // required for the cookie
})
.done(function () {
NETDATA.registerChartLibrary('easypiechart', NETDATA.easypiechart_js);
})
.fail(function () {
NETDATA.chartLibraries.easypiechart.enabled = false;
NETDATA.error(100, NETDATA.easypiechart_js);
})
.always(function () {
if (typeof callback === "function") {
return callback();
}
})
} else {
NETDATA.chartLibraries.easypiechart.enabled = false;
if (typeof callback === "function") {
return callback();
}
}
};
NETDATA.easypiechartClearSelection = function (state, force) {
if (typeof state.tmp.easyPieChartEvent !== 'undefined' && typeof state.tmp.easyPieChartEvent.timer !== 'undefined') {
NETDATA.timeout.clear(state.tmp.easyPieChartEvent.timer);
state.tmp.easyPieChartEvent.timer = undefined;
}
if (state.isAutoRefreshable() && state.data !== null && force !== true) {
NETDATA.easypiechartChartUpdate(state, state.data);
}
else {
state.tmp.easyPieChartLabel.innerText = state.legendFormatValue(null);
state.tmp.easyPieChart_instance.update(0);
}
state.tmp.easyPieChart_instance.enableAnimation();
return true;
};
NETDATA.easypiechartSetSelection = function (state, t) {
if (state.timeIsVisible(t) !== true) {
return NETDATA.easypiechartClearSelection(state, true);
}
let slot = state.calculateRowForTime(t);
if (slot < 0 || slot >= state.data.result.length) {
return NETDATA.easypiechartClearSelection(state, true);
}
if (typeof state.tmp.easyPieChartEvent === 'undefined') {
state.tmp.easyPieChartEvent = {
timer: undefined,
value: 0,
pcent: 0
};
}
let value = state.data.result[state.data.result.length - 1 - slot];
let min = (state.tmp.easyPieChartMin === null) ? NETDATA.commonMin.get(state) : state.tmp.easyPieChartMin;
let max = (state.tmp.easyPieChartMax === null) ? NETDATA.commonMax.get(state) : state.tmp.easyPieChartMax;
let pcent = NETDATA.easypiechartPercentFromValueMinMax(state, value, min, max);
state.tmp.easyPieChartEvent.value = value;
state.tmp.easyPieChartEvent.pcent = pcent;
state.tmp.easyPieChartLabel.innerText = state.legendFormatValue(value);
if (state.tmp.easyPieChartEvent.timer === undefined) {
state.tmp.easyPieChart_instance.disableAnimation();
state.tmp.easyPieChartEvent.timer = NETDATA.timeout.set(function () {
state.tmp.easyPieChartEvent.timer = undefined;
state.tmp.easyPieChart_instance.update(state.tmp.easyPieChartEvent.pcent);
}, 0);
}
return true;
};
NETDATA.easypiechartChartUpdate = function (state, data) {
let value, min, max, pcent;
if (NETDATA.globalPanAndZoom.isActive() || state.isAutoRefreshable() === false) {
value = null;
pcent = 0;
}
else {
value = data.result[0];
min = (state.tmp.easyPieChartMin === null) ? NETDATA.commonMin.get(state) : state.tmp.easyPieChartMin;
max = (state.tmp.easyPieChartMax === null) ? NETDATA.commonMax.get(state) : state.tmp.easyPieChartMax;
pcent = NETDATA.easypiechartPercentFromValueMinMax(state, value, min, max);
}
state.tmp.easyPieChartLabel.innerText = state.legendFormatValue(value);
state.tmp.easyPieChart_instance.update(pcent);
return true;
};
NETDATA.easypiechartChartCreate = function (state, data) {
let chart = $(state.element_chart);
let value = data.result[0];
let min = NETDATA.dataAttribute(state.element, 'easypiechart-min-value', null);
let max = NETDATA.dataAttribute(state.element, 'easypiechart-max-value', null);
if (min === null) {
min = NETDATA.commonMin.get(state);
state.tmp.easyPieChartMin = null;
}
else {
state.tmp.easyPieChartMin = min;
}
if (max === null) {
max = NETDATA.commonMax.get(state);
state.tmp.easyPieChartMax = null;
}
else {
state.tmp.easyPieChartMax = max;
}
let size = state.chartWidth();
let stroke = Math.floor(size / 22);
if (stroke < 3) {
stroke = 2;
}
let valuefontsize = Math.floor((size * 2 / 3) / 5);
let valuetop = Math.round((size - valuefontsize - (size / 40)) / 2);
state.tmp.easyPieChartLabel = document.createElement('span');
state.tmp.easyPieChartLabel.className = 'easyPieChartLabel';
state.tmp.easyPieChartLabel.innerText = state.legendFormatValue(value);
state.tmp.easyPieChartLabel.style.fontSize = valuefontsize + 'px';
state.tmp.easyPieChartLabel.style.top = valuetop.toString() + 'px';
state.element_chart.appendChild(state.tmp.easyPieChartLabel);
let titlefontsize = Math.round(valuefontsize * 1.6 / 3);
let titletop = Math.round(valuetop - (titlefontsize * 2) - (size / 40));
state.tmp.easyPieChartTitle = document.createElement('span');
state.tmp.easyPieChartTitle.className = 'easyPieChartTitle';
state.tmp.easyPieChartTitle.innerText = state.title;
state.tmp.easyPieChartTitle.style.fontSize = titlefontsize + 'px';
state.tmp.easyPieChartTitle.style.lineHeight = titlefontsize + 'px';
state.tmp.easyPieChartTitle.style.top = titletop.toString() + 'px';
state.element_chart.appendChild(state.tmp.easyPieChartTitle);
let unitfontsize = Math.round(titlefontsize * 0.9);
let unittop = Math.round(valuetop + (valuefontsize + unitfontsize) + (size / 40));
state.tmp.easyPieChartUnits = document.createElement('span');
state.tmp.easyPieChartUnits.className = 'easyPieChartUnits';
state.tmp.easyPieChartUnits.innerText = state.units_current;
state.tmp.easyPieChartUnits.style.fontSize = unitfontsize + 'px';
state.tmp.easyPieChartUnits.style.top = unittop.toString() + 'px';
state.element_chart.appendChild(state.tmp.easyPieChartUnits);
let barColor = NETDATA.dataAttribute(state.element, 'easypiechart-barcolor', undefined);
if (typeof barColor === 'undefined' || barColor === null) {
barColor = state.chartCustomColors()[0];
} else {
// <div ... data-easypiechart-barcolor="(function(percent){return(percent < 50 ? '#5cb85c' : percent < 85 ? '#f0ad4e' : '#cb3935');})" ...></div>
let tmp = eval(barColor);
if (typeof tmp === 'function') {
barColor = tmp;
}
}
let pcent = NETDATA.easypiechartPercentFromValueMinMax(state, value, min, max);
chart.data('data-percent', pcent);
chart.easyPieChart({
barColor: barColor,
trackColor: NETDATA.dataAttribute(state.element, 'easypiechart-trackcolor', NETDATA.themes.current.easypiechart_track),
scaleColor: NETDATA.dataAttribute(state.element, 'easypiechart-scalecolor', NETDATA.themes.current.easypiechart_scale),
scaleLength: NETDATA.dataAttribute(state.element, 'easypiechart-scalelength', 5),
lineCap: NETDATA.dataAttribute(state.element, 'easypiechart-linecap', 'round'),
lineWidth: NETDATA.dataAttribute(state.element, 'easypiechart-linewidth', stroke),
trackWidth: NETDATA.dataAttribute(state.element, 'easypiechart-trackwidth', undefined),
size: NETDATA.dataAttribute(state.element, 'easypiechart-size', size),
rotate: NETDATA.dataAttribute(state.element, 'easypiechart-rotate', 0),
animate: NETDATA.dataAttribute(state.element, 'easypiechart-animate', {duration: 500, enabled: true}),
easing: NETDATA.dataAttribute(state.element, 'easypiechart-easing', undefined)
});
// when we just re-create the chart
// do not animate the first update
let animate = true;
if (typeof state.tmp.easyPieChart_instance !== 'undefined') {
animate = false;
}
state.tmp.easyPieChart_instance = chart.data('easyPieChart');
if (animate === false) {
state.tmp.easyPieChart_instance.disableAnimation();
}
state.tmp.easyPieChart_instance.update(pcent);
if (animate === false) {
state.tmp.easyPieChart_instance.enableAnimation();
}
state.legendSetUnitsString = function (units) {
if (typeof state.tmp.easyPieChartUnits !== 'undefined' && state.tmp.units !== units) {
state.tmp.easyPieChartUnits.innerText = units;
state.tmp.units = units;
}
};
state.legendShowUndefined = function () {
if (typeof state.tmp.easyPieChart_instance !== 'undefined') {
NETDATA.easypiechartClearSelection(state);
}
};
return true;
};
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