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small refactor string size calculation extension

This commit is contained in:
Ivan Smolin 2016-09-09 10:37:49 +03:00
parent 6cea000af9
commit c16f67f54f
1 changed files with 7 additions and 3 deletions
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10
LeadKit/LeadKit/Extensions/NSString/NSString+SizeCalculation.swift
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@ -20,11 +20,15 @@ public struct StringSizeCalculationResult {
public extension StringSizeCalculationResult {
public var height: CGFloat { return size.height }
public var width: CGFloat { return size.width }
public var numberOfLines: UInt? {
if let lineHeight = fontLineHeight {
let lineHeightRounded = Double(lineHeight).roundValue(withPersicion: 2)
let heightRounded = Double(size.height).roundValue(withPersicion: 2)
let heightRounded = Double(height).roundValue(withPersicion: 2)
let numberOfLines = ceil(heightRounded / lineHeightRounded)
@ -47,7 +51,7 @@ public extension NSString {
- returns: string size calculation result
*/
public func sizeWith(attributes attributes: [String: AnyObject]?,
public func size(withAttributes attributes: [String: AnyObject]?,
maxWidth: CGFloat = CGFloat.max,
maxHeight: CGFloat = CGFloat.max) -> StringSizeCalculationResult {
@ -57,7 +61,7 @@ public extension NSString {
context: nil).size
let fontLineHeight = (attributes?[NSFontAttributeName] as? UIFont)?.lineHeight
return StringSizeCalculationResult(size: size, fontLineHeight: fontLineHeight)
}