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73 lines
1.9 KiB
73 lines
1.9 KiB
'use strict' |
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var stringWidth = require('string-width') |
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module.exports = TemplateItem |
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function isPercent (num) { |
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if (typeof num !== 'string') return false |
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return num.slice(-1) === '%' |
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} |
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function percent (num) { |
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return Number(num.slice(0, -1)) / 100 |
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} |
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function TemplateItem (values, outputLength) { |
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this.overallOutputLength = outputLength |
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this.finished = false |
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this.type = null |
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this.value = null |
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this.length = null |
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this.maxLength = null |
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this.minLength = null |
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this.kerning = null |
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this.align = 'left' |
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this.padLeft = 0 |
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this.padRight = 0 |
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this.index = null |
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this.first = null |
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this.last = null |
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if (typeof values === 'string') { |
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this.value = values |
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} else { |
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for (var prop in values) this[prop] = values[prop] |
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} |
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// Realize percents |
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if (isPercent(this.length)) { |
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this.length = Math.round(this.overallOutputLength * percent(this.length)) |
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} |
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if (isPercent(this.minLength)) { |
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this.minLength = Math.round(this.overallOutputLength * percent(this.minLength)) |
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} |
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if (isPercent(this.maxLength)) { |
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this.maxLength = Math.round(this.overallOutputLength * percent(this.maxLength)) |
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} |
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return this |
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} |
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TemplateItem.prototype = {} |
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TemplateItem.prototype.getBaseLength = function () { |
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var length = this.length |
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if (length == null && typeof this.value === 'string' && this.maxLength == null && this.minLength == null) { |
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length = stringWidth(this.value) |
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} |
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return length |
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} |
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TemplateItem.prototype.getLength = function () { |
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var length = this.getBaseLength() |
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if (length == null) return null |
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return length + this.padLeft + this.padRight |
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} |
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TemplateItem.prototype.getMaxLength = function () { |
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if (this.maxLength == null) return null |
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return this.maxLength + this.padLeft + this.padRight |
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} |
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TemplateItem.prototype.getMinLength = function () { |
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if (this.minLength == null) return null |
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return this.minLength + this.padLeft + this.padRight |
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} |
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