kish/lib/src/bar.js

Image Charts Tools: Image Chart & Infographics wrapper for Node.js

const util = require("util");
const Chart = require("./chart");

const Bar = function () {
  this.initialize();
};

util.inherits(Bar, Chart);

Bar.prototype.initialize = function () {
  Bar.super_.prototype.initialize.call(this);

  this.barWidth = 23;
  this.barSpacing = 4;
  this.type = "bar";
  this.setBarVerticle();
  this.setBarGrouped();
  this.axisRanges = {};
};

Bar.prototype.addData = function (data, label, color, max, min) {
  const extras = {};

  if (max && !min) {
    min = 0;
  }

  if (typeof max === "number" && typeof min === "number") {
    extras.range = [min, max];
  }

  Bar.super_.prototype.addData.call(this, data, label, color, extras);
};

Bar.prototype.setBarWidth = function (width) {
  this.barWidth = width;
};

Bar.prototype.setBarSpacing = function (spacing) {
  this.barSpacing = spacing;
};

Bar.prototype.setBarVerticle = function () {
  this.barOrientation = "vertical";
};

Bar.prototype.setBarHorizontal = function () {
  this.barOrientation = "horizontal";
};

Bar.prototype.isVerticle = function () {
  return this.barOrientation === "vertical" ? true : false;
};

Bar.prototype.setBarGrouped = function () {
  this.barMultiSeries = "grouped";
};

Bar.prototype.isGrouped = function () {
  return this.barMultiSeries === "grouped" ? true : false;
};

Bar.prototype.setBarStacked = function () {
  this.barMultiSeries = "stacked";
};

Bar.prototype.isStacked = function () {
  return this.barMultiSeries === "stacked" ? true : false;
};

Bar.prototype.setBarOverlapped = function () {
  this.barMultiSeries = "overlapped";
};

Bar.prototype.isOverlapped = function () {
  return this.barMultiSeries === "overlapped" ? true : false;
};

Bar.prototype.setAxisRange = function (axis, start, end, step) {
  const range = {
    start: start,
    end: end,
  };

  if (step) {
    range.step = step;
  }

  this.axisRanges[axis] = range;
};

module.exports = Bar;