68 lines
2.0 KiB
Swift
68 lines
2.0 KiB
Swift
//
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// PreCompLayer.swift
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// lottie-swift
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//
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// Created by Brandon Withrow on 1/8/19.
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//
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import Foundation
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/// A layer that holds another animation composition.
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final class PreCompLayerModel: LayerModel {
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// MARK: Lifecycle
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required init(from decoder: Decoder) throws {
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let container = try decoder.container(keyedBy: PreCompLayerModel.CodingKeys.self)
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referenceID = try container.decode(String.self, forKey: .referenceID)
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timeRemapping = try container.decodeIfPresent(KeyframeGroup<Vector1D>.self, forKey: .timeRemapping)
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width = try container.decode(Double.self, forKey: .width)
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height = try container.decode(Double.self, forKey: .height)
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try super.init(from: decoder)
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}
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required init(dictionary: [String: Any]) throws {
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referenceID = try dictionary.value(for: CodingKeys.referenceID)
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if let timeRemappingDictionary = dictionary[CodingKeys.timeRemapping.rawValue] as? [String: Any] {
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timeRemapping = try KeyframeGroup<Vector1D>(dictionary: timeRemappingDictionary)
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} else {
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timeRemapping = nil
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}
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width = try dictionary.value(for: CodingKeys.width)
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height = try dictionary.value(for: CodingKeys.height)
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try super.init(dictionary: dictionary)
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}
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// MARK: Internal
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/// The reference ID of the precomp.
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let referenceID: String
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/// A value that remaps time over time.
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let timeRemapping: KeyframeGroup<Vector1D>?
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/// Precomp Width
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let width: Double
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/// Precomp Height
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let height: Double
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override func encode(to encoder: Encoder) throws {
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try super.encode(to: encoder)
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var container = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(referenceID, forKey: .referenceID)
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try container.encode(timeRemapping, forKey: .timeRemapping)
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try container.encode(width, forKey: .width)
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try container.encode(height, forKey: .height)
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}
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// MARK: Private
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private enum CodingKeys: String, CodingKey {
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case referenceID = "refId"
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case timeRemapping = "tm"
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case width = "w"
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case height = "h"
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}
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}
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