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47 lines
1.4 KiB
Swift
47 lines
1.4 KiB
Swift
//
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// CachedImage.swift
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// ContentKit
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//
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// Created by Georges Boumis on 01/09/2016.
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//
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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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//
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import Foundation
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#if canImport(UIKit) && canImport(CoreGraphics)
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import UIKit
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/// An image that caches the backing image upon its first usage.
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public final class CachedImage: ContentKit.Image {
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private var _image: UIImage?
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private let _imageToCache: ContentKit.Image
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public var image: UIImage {
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if self._image == nil {
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self._image = self._imageToCache.image
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}
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return self._image!
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}
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public init(image: ContentKit.Image) {
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self._imageToCache = image
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}
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}
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#endif
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