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91 lines
3.1 KiB
Swift
91 lines
3.1 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import Foundation
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@_exported import AppKit
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extension NSCursor : CustomPlaygroundQuickLookable {
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public var customPlaygroundQuickLook: PlaygroundQuickLook {
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return .Image(image)
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}
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}
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internal struct _NSViewQuickLookState {
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static var views = Set<NSView>()
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}
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extension NSView : CustomPlaygroundQuickLookable {
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public var customPlaygroundQuickLook: PlaygroundQuickLook {
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// if you set NSView.needsDisplay, you can get yourself in a recursive scenario where the same view
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// could need to draw itself in order to get a QLObject for itself, which in turn if your code was
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// instrumented to log on-draw, would cause yourself to get back here and so on and so forth
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// until you run out of stack and crash
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// This code checks that we aren't trying to log the same view recursively - and if so just returns
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// an empty view, which is probably a safer option than crashing
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// FIXME: is there a way to say "cacheDisplayInRect butDoNotRedrawEvenIfISaidSo"?
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if _NSViewQuickLookState.views.contains(self) {
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return .View(NSImage())
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} else {
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_NSViewQuickLookState.views.insert(self)
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let result: PlaygroundQuickLook
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if let b = bitmapImageRepForCachingDisplayIn(bounds) {
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cacheDisplayIn(bounds, to: b)
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result = .View(b)
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} else {
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result = .View(NSImage())
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}
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_NSViewQuickLookState.views.remove(self)
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return result
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}
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}
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}
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// Overlays for variadics.
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public extension NSGradient {
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convenience init?(colorsAndLocations objects: (NSColor, CGFloat)...) {
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self.init(
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colors: objects.map { $0.0 },
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atLocations: objects.map { $0.1 },
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colorSpace: NSColorSpace.genericRGB())
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}
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}
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// Fix the ARGV type of NSApplicationMain, which nonsensically takes
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// argv as a const char**.
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@_silgen_name("NSApplicationMain")
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public func NSApplicationMain(
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argc: Int32, _ argv: UnsafeMutablePointer<UnsafeMutablePointer<CChar>>
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) -> Int32
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extension NSColor : _ColorLiteralConvertible {
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public required convenience init(colorLiteralRed red: Float, green: Float,
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blue: Float, alpha: Float) {
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self.init(srgbRed: CGFloat(red), green: CGFloat(green),
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blue: CGFloat(blue), alpha: CGFloat(alpha))
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}
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}
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public typealias _ColorLiteralType = NSColor
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extension NSImage : _ImageLiteralConvertible {
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private convenience init!(failableImageLiteral name: String) {
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self.init(named: name)
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}
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public required convenience init(imageLiteral name: String) {
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self.init(failableImageLiteral: name)
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}
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}
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public typealias _ImageLiteralType = NSImage
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