54 lines
1.9 KiB
Swift
54 lines
1.9 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 TemplateDrawingOperation: DrawingOperation {
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private let image: CGImage
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private let imageSize: CGSize
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private let color: CGColor
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public init(image: CGImage, imageSize: CGSize, color: CGColor) {
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self.image = image
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self.imageSize = imageSize
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self.color = color
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}
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public var contextSize: CGContextSize {
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imageSize.ceiledContextSize
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}
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public func apply(in context: CGContext) {
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let imageRect = CGRect(origin: .zero, size: imageSize)
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context.setFillColor(color)
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context.translateBy(x: 0, y: imageSize.height)
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context.scaleBy(x: 1, y: -1)
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context.clip(to: imageRect, mask: image)
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context.fill(imageRect)
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context.setBlendMode(.multiply)
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}
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}
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