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217 changes: 217 additions & 0 deletions
217
Sources/QRCode/styles/data/pixel/QRCodePixelShapeDiamond.swift
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| // | ||
| // Copyright © 2025 Darren Ford. All rights reserved. | ||
| // | ||
| // MIT license | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated | ||
| // documentation files (the "Software"), to deal in the Software without restriction, including without limitation the | ||
| // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to | ||
| // permit persons to whom the Software is furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all copies or substantial | ||
| // portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE | ||
| // WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS | ||
| // OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| // | ||
|
|
||
| import CoreGraphics | ||
| import Foundation | ||
|
|
||
| public extension QRCode.PixelShape { | ||
| /// A diamond pixel shape | ||
| @objc(QRCodePixelShapeDiamond) class Diamond: NSObject, QRCodePixelShapeGenerator { | ||
| /// The generator name | ||
| @objc public static let Name: String = "diamond" | ||
| /// The generator title | ||
| @objc public static var Title: String { "Diamond" } | ||
|
|
||
| /// This pupil generator can be used when generating eye and pupil shapes | ||
| @objc public var canGenerateEyeAndPupilShapes: Bool { true } | ||
|
|
||
| /// Create | ||
| /// - Parameters: | ||
| /// - insetGenerator: The inset function to apply to each pixel | ||
| /// - insetFraction: The inset between each pixel | ||
| /// - rotationGenerator: The rotation function to apply to each pixel | ||
| /// - rotationFraction: The rotation fraction (-1.0 -> 1.0) to apply to the rotation of each pixel | ||
| @objc public init( | ||
| insetGenerator: QRCodePixelInsetGenerator = QRCode.PixelInset.Fixed(), | ||
| insetFraction: CGFloat = 0, | ||
| rotationGenerator: QRCodePixelRotationGenerator = QRCode.PixelRotation.Fixed(), | ||
| rotationFraction: CGFloat = 0 | ||
| ) { | ||
| self.common = CommonPixelGenerator( | ||
| pixelType: .diamond, | ||
| insetGenerator: insetGenerator, | ||
| insetFraction: insetFraction, | ||
| rotationGenerator: rotationGenerator, | ||
| rotationFraction: rotationFraction | ||
| ) | ||
| super.init() | ||
| } | ||
|
|
||
| /// Create an instance of this path generator with the specified settings | ||
| @objc public static func Create(_ settings: [String: Any]?) -> any QRCodePixelShapeGenerator { | ||
| let insetFraction = DoubleValue(settings?[QRCode.SettingsKey.insetFraction, default: 0]) ?? 0 | ||
| let rotationFraction = CGFloatValue(settings?[QRCode.SettingsKey.rotationFraction]) ?? 0.0 | ||
|
|
||
| let generator: QRCodePixelInsetGenerator | ||
| if let s = settings?[QRCode.SettingsKey.insetGeneratorName] as? String { | ||
| generator = QRCode.PixelInset.generator(named: s) ?? QRCode.PixelInset.Fixed() | ||
| } | ||
| else { | ||
| // Backwards compatible | ||
| let useRandomInset = BoolValue(settings?[QRCode.SettingsKey.useRandomInset]) ?? false | ||
| generator = useRandomInset ? QRCode.PixelInset.Random() : QRCode.PixelInset.Fixed() | ||
| } | ||
|
|
||
| let rotationGenerator: QRCodePixelRotationGenerator | ||
| if let s = settings?[QRCode.SettingsKey.rotationGeneratorName] as? String { | ||
| rotationGenerator = QRCode.PixelRotation.generator(named: s) ?? QRCode.PixelRotation.Fixed() | ||
| } | ||
| else { | ||
| // Backwards compatible | ||
| let useRandomRotation = BoolValue(settings?[QRCode.SettingsKey.useRandomRotation]) ?? false | ||
| rotationGenerator = useRandomRotation ? QRCode.PixelRotation.Random() : QRCode.PixelRotation.Fixed() | ||
| } | ||
|
|
||
| return Diamond( | ||
| insetGenerator: generator, | ||
| insetFraction: insetFraction, | ||
| rotationGenerator: rotationGenerator, | ||
| rotationFraction: rotationFraction | ||
| ) | ||
| } | ||
|
|
||
| /// Make a copy of the object | ||
| @objc public func copyShape() -> any QRCodePixelShapeGenerator { | ||
| return Diamond( | ||
| insetGenerator: self.common.insetGenerator.copyInsetGenerator(), | ||
| insetFraction: self.common.insetFraction, | ||
| rotationGenerator: self.common.rotationGenerator.copyRotationGenerator(), | ||
| rotationFraction: self.common.rotationFraction | ||
| ) | ||
| } | ||
|
|
||
| /// Reset the generator back to defaults | ||
| @objc public func reset() { | ||
| self.common.insetGenerator = QRCode.PixelInset.Fixed() | ||
| self.common.insetFraction = 0 | ||
| self.common.rotationGenerator = QRCode.PixelRotation.Fixed() | ||
| self.common.rotationFraction = 0 | ||
| } | ||
|
|
||
| /// Generate a CGPath from the matrix contents | ||
| /// - Parameters: | ||
| /// - matrix: The matrix to generate | ||
| /// - size: The size of the resulting CGPath | ||
| /// - Returns: A path | ||
| public func generatePath(from matrix: BoolMatrix, size: CGSize) -> CGPath { | ||
| common.generatePath(from: matrix, size: size) | ||
| } | ||
|
|
||
| private let common: CommonPixelGenerator | ||
| } | ||
| } | ||
|
|
||
| // MARK: - Drawing | ||
|
|
||
| internal extension QRCode.PixelShape.Diamond { | ||
| // A 10x10 'pixel' representation of a diamond pixel | ||
| static func diamond10x10() -> CGPath { __diamondPath } | ||
| } | ||
|
|
||
| private let __diamondPath = CGPath.make { diamondPath in | ||
| diamondPath.move(to: CGPoint(x: 1, y: 1)) | ||
| diamondPath.line(to: CGPoint(x: 10, y: 0)) | ||
| diamondPath.line(to: CGPoint(x: 9, y: 9)) | ||
| diamondPath.line(to: CGPoint(x: 0, y: 10)) | ||
| diamondPath.line(to: CGPoint(x: 1, y: 1)) | ||
| diamondPath.close() | ||
| } | ||
|
|
||
| // MARK: - Settings | ||
|
|
||
| public extension QRCode.PixelShape.Diamond { | ||
| /// Returns true if the shape supports setting a value for the specified key, false otherwise | ||
| @objc func supportsSettingValue(forKey key: String) -> Bool { | ||
| return key == QRCode.SettingsKey.insetFraction | ||
| || key == QRCode.SettingsKey.insetGeneratorName | ||
| || key == QRCode.SettingsKey.rotationFraction | ||
| || key == QRCode.SettingsKey.rotationGeneratorName | ||
| } | ||
|
|
||
| /// Returns the current settings for the shape | ||
| @objc func settings() -> [String : Any] { | ||
| var result: [String: Any] = [ | ||
| QRCode.SettingsKey.insetGeneratorName: self.common.insetGenerator.name, | ||
| QRCode.SettingsKey.insetFraction: self.common.insetFraction, | ||
| QRCode.SettingsKey.rotationGeneratorName: self.common.rotationGenerator.name, | ||
| QRCode.SettingsKey.rotationFraction: self.common.rotationFraction, | ||
| ] | ||
| if self.common.insetGenerator is QRCode.PixelInset.Random { | ||
| // Backwards compatibility | ||
| result[QRCode.SettingsKey.useRandomInset] = true | ||
| } | ||
| if self.common.rotationGenerator is QRCode.PixelRotation.Random { | ||
| // Backwards compatibility | ||
| result[QRCode.SettingsKey.useRandomRotation] = true | ||
| } | ||
| return result | ||
| } | ||
|
|
||
| /// Set a configuration value for a particular setting string | ||
| @objc func setSettingValue(_ value: Any?, forKey key: String) -> Bool { | ||
| if key == QRCode.SettingsKey.insetFraction { | ||
| return self.common.setInsetFractionValue(value) | ||
| } | ||
| else if key == QRCode.SettingsKey.insetGeneratorName { | ||
| return self.common.setInsetGenerator(named: value) | ||
| } | ||
| else if key == QRCode.SettingsKey.rotationFraction { | ||
| return self.common.setRotationFraction(value) | ||
| } | ||
| else if key == QRCode.SettingsKey.rotationGeneratorName { | ||
| return self.common.setRotationGenerator(named: value) | ||
| } | ||
| else if key == QRCode.SettingsKey.useRandomRotation { | ||
| // backwards compatibility | ||
| let which = BoolValue(value) ?? false | ||
| return self.common.setRotationGenerator(named: which ? QRCode.PixelRotation.Random() : QRCode.PixelRotation.Fixed()) | ||
| } | ||
| else if key == QRCode.SettingsKey.useRandomInset { | ||
| // backwards compatibility | ||
| let which = BoolValue(value) ?? false | ||
| return self.common.setInsetGenerator(which ? QRCode.PixelInset.Random() : QRCode.PixelInset.Fixed()) | ||
| } | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| // MARK: - Pixel creation conveniences | ||
|
|
||
| public extension QRCodePixelShapeGenerator where Self == QRCode.PixelShape.Diamond { | ||
| /// Create a diamond pixel generator | ||
| /// - Parameters: | ||
| /// - insetGenerator: The inset generator | ||
| /// - insetFraction: The inset between each pixel | ||
| /// - rotationGenerator: The rotation generator | ||
| /// - rotationFraction: The rotation fraction (-1.0 -> 1.0) to apply to the rotation of each pixel | ||
| /// - Returns: A pixel generator | ||
| @inlinable static func diamond( | ||
| insetGenerator: QRCodePixelInsetGenerator = QRCode.PixelInset.Fixed(), | ||
| insetFraction: CGFloat = 0, | ||
| rotationGenerator: QRCodePixelRotationGenerator = QRCode.PixelRotation.Fixed(), | ||
| rotationFraction: CGFloat = 0 | ||
| ) -> QRCodePixelShapeGenerator { | ||
| QRCode.PixelShape.Diamond( | ||
| insetGenerator: insetGenerator, | ||
| insetFraction: insetFraction, | ||
| rotationGenerator: rotationGenerator, | ||
| rotationFraction: rotationFraction | ||
| ) | ||
| } | ||
| } |
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