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Pods/FontAwesome.swift/FontAwesome/FontAwesomeImageRepresentable.swift

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+// FontAwesomeImageRepresentable.swift
+//
+// Copyright (c) 2014-present FontAwesome.swift contributors
+//
+// 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 UIKit
+
+protocol FontAwesomeImageRepresentable: class {
+
+    typealias ImageConfig = (cssIconName: String, style: FontAwesomeStyle, color: UIColor?, backgroundColor: UIColor?)
+
+    var imageWidth: CGFloat { get }
+    var imageConfigs: [ImageConfig] { get }
+
+    func createImages(configurationHandler: (_ image: UIImage?, _ index: Int) -> Void)
+}
+
+extension FontAwesomeImageRepresentable {
+
+    func createImages(configurationHandler: (_ image: UIImage?, _ index: Int) -> Void) {
+        let imgSize = imageSizeForAspectRatio()
+        for (index, config) in imageConfigs.enumerated() {
+            let img = createImage(config: config, size: imgSize)
+            configurationHandler(img, index)
+        }
+    }
+
+    private func createImage(config: ImageConfig, size: CGSize) -> UIImage? {
+        return UIImage.fontAwesomeIcon(code: config.cssIconName,
+                                       style: config.style,
+                                       textColor: config.color ?? .black,
+                                       size: size,
+                                       backgroundColor: config.backgroundColor ?? .clear)
+    }
+
+    private func imageSizeForAspectRatio() -> CGSize {
+        return CGSize(width: imageWidth, height: imageWidth / FontAwesomeConfig.fontAspectRatio)
+    }
+}