55 lines
2.0 KiB
Swift
55 lines
2.0 KiB
Swift
//
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// Copyright (c) 2017 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import CoreGraphics
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struct ResizeDrawingOperation: DrawingOperation {
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private let image: CGImage
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private let drawRect: CGRect
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public let contextSize: CGContextSize
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public init(image: CGImage,
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imageSize: CGSize,
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preferredNewSize: CGSize,
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resizeMode: ResizeMode,
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cropToImageBounds: Bool = false) {
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self.image = image
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let resizedRect = imageSize.resizeRect(forNewSize: preferredNewSize, resizeMode: resizeMode)
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if cropToImageBounds {
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drawRect = CGRect(origin: .zero, size: resizedRect.size)
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contextSize = resizedRect.size.ceiledContextSize
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} else {
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drawRect = resizedRect
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contextSize = preferredNewSize.ceiledContextSize
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}
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}
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public func apply(in context: CGContext) {
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context.interpolationQuality = .high
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context.draw(image, in: drawRect)
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}
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}
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