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NetNewsWire/Modules/AppKitExtras/Sources/AppKitExtras/NSView+RSCore.swift
2024-07-06 21:07:05 -07:00

54 lines
2.0 KiB
Swift

//
// NSView+Extensions.swift
// RSCore
//
// Created by Maurice Parker on 11/12/19.
// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
//
#if os(macOS)
import AppKit
import FoundationExtras
public extension NSView {
func asImage() -> NSImage {
let rep = bitmapImageRepForCachingDisplay(in: bounds)!
cacheDisplay(in: bounds, to: rep)
let img = NSImage(size: bounds.size)
img.addRepresentation(rep)
return img
}
func constraintsToMakeSubViewFullSize(_ subview: NSView) -> [NSLayoutConstraint] {
let leadingConstraint = NSLayoutConstraint(item: subview, attribute: .leading, relatedBy: .equal, toItem: self.safeAreaLayoutGuide, attribute: .leading, multiplier: 1.0, constant: 0.0)
let trailingConstraint = NSLayoutConstraint(item: subview, attribute: .trailing, relatedBy: .equal, toItem: self.safeAreaLayoutGuide, attribute: .trailing, multiplier: 1.0, constant: 0.0)
let topConstraint = NSLayoutConstraint(item: subview, attribute: .top, relatedBy: .equal, toItem: self.safeAreaLayoutGuide, attribute: .top, multiplier: 1.0, constant: 0.0)
let bottomConstraint = NSLayoutConstraint(item: subview, attribute: .bottom, relatedBy: .equal, toItem: self.safeAreaLayoutGuide, attribute: .bottom, multiplier: 1.0, constant: 0.0)
return [leadingConstraint, trailingConstraint, topConstraint, bottomConstraint]
}
/// Keeps a subview at same size as receiver.
///
/// - Parameter subview: The subview to constrain. Must be a descendant of `self`.
func addFullSizeConstraints(forSubview subview: NSView) {
NSLayoutConstraint.activate([
subview.leadingAnchor.constraint(equalTo: leadingAnchor),
subview.trailingAnchor.constraint(equalTo: trailingAnchor),
subview.topAnchor.constraint(equalTo: topAnchor),
subview.bottomAnchor.constraint(equalTo: bottomAnchor)
])
}
/// Sets the view's frame if it's different from the current frame.
///
/// - Parameter rect: The new frame.
func setFrame(ifNotEqualTo rect: NSRect) {
if self.frame != rect {
self.frame = rect
}
}
}
#endif