3 var assert = require('assert')
4 , ansi = require('../../')
6 function Progress (stream, width) {
7 this.cursor = ansi(stream)
8 this.delta = this.cursor.newlines
9 this.width = width | 0 || 10
19 Object.defineProperty(Progress.prototype, 'progress', {
31 this._progress = Math.max(0, Math.min(v, 100))
33 var w = this.width - this.complete.length - this.incomplete.length
34 , n = w * (this._progress / 100) | 0
36 , com = c(this.complete, n)
37 , inc = c(this.incomplete, i)
38 , delta = this.cursor.newlines - this.delta
40 assert.equal(com.length + inc.length, w)
44 this.delta = this.cursor.newlines
48 .horizontalAbsolute(0)
63 function c (char, length) {
64 return Array.apply(null, Array(length)).map(function () {
73 var width = parseInt(process.argv[2], 10) || process.stdout.getWindowSize()[0] / 2
74 , p = new Progress(process.stdout, width)
77 p.progress += Math.random() * 5
81 .bold().write(p.progress.toFixed(2))