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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // | ||
| // StringExtension.swift | ||
| // HandyUIKit | ||
| // | ||
| // Created by Cihat Gündüz on 19.02.17. | ||
| // Copyright © 2017 Flinesoft. All rights reserved. | ||
| // | ||
|
|
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| import UIKit | ||
|
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| extension String { | ||
| /// Calculates and returns the height needed to fit the text into a width-constrained rect. | ||
| /// | ||
| /// - Parameters: | ||
| /// - fixedWidth: The fixed width of the rect. | ||
| /// - font: The font of the text to calculate for. | ||
| /// - Returns: The height needed to fit the text into a width-constrained rect. | ||
| public func height(forFixedWidth fixedWidth: CGFloat, font: UIFont) -> CGFloat { | ||
| let constraintSize = CGSize(width: fixedWidth, height: .greatestFiniteMagnitude) | ||
| return rect(for: constraintSize, font: font).height | ||
| } | ||
|
|
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| /// Calculates and returns the width needed to fit the text into a height-constrained rect. | ||
| /// | ||
| /// - Parameters: | ||
| /// - fixedHeight: The fixed height of the rect. | ||
| /// - font: The font of the text to calculate for. | ||
| /// - Returns: The width needed to fit the text into a height-constrained rect. | ||
| public func width(forFixedHeight fixedHeight: CGFloat, font: UIFont) -> CGFloat { | ||
| let constraintSize = CGSize(width: .greatestFiniteMagnitude, height: fixedHeight) | ||
| return rect(for: constraintSize, font: font).width | ||
| } | ||
|
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| private func rect(for constraintSize: CGSize, font: UIFont) -> CGRect { | ||
| let attributes = [NSFontAttributeName: font] | ||
| return (self as NSString).boundingRect(with: constraintSize, options: .usesLineFragmentOrigin, attributes: attributes, context: nil) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| // | ||
| // StringExtensionTests.swift | ||
| // HandyUIKit | ||
| // | ||
| // Created by Cihat Gündüz on 19.02.17. | ||
| // Copyright © 2017 Flinesoft. All rights reserved. | ||
| // | ||
|
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| import XCTest | ||
|
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| @testable import HandyUIKit | ||
|
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| class StringExtensionTests: XCTestCase { | ||
| let loremIpsum = "Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum." // swiftlint:disable:this line_length | ||
|
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| func testHeight() { | ||
| let font = UIFont(name: "Helvetica Neue", size: 16)! | ||
| let calculatedHeight = loremIpsum.height(forFixedWidth: 300, font: font) | ||
|
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| XCTAssertEqualWithAccuracy(calculatedHeight, 205.04, accuracy: 0.001) | ||
| } | ||
|
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| func testWidth() { | ||
| let font = UIFont(name: "Helvetica Neue", size: 16)! | ||
| let calculatedHeight = loremIpsum.width(forFixedHeight: 21, font: font) | ||
|
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| XCTAssertEqualWithAccuracy(calculatedHeight, 3014.592, accuracy: 0.001) | ||
| } | ||
| } |
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