52 lines
1.5 KiB
Swift
52 lines
1.5 KiB
Swift
// Copyright 2020-2021 Tokamak contributors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
// Created by Carson Katri on 7/3/20.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
public struct _RotationEffect: GeometryEffect {
|
|
public var angle: Angle
|
|
public var anchor: UnitPoint
|
|
|
|
public init(angle: Angle, anchor: UnitPoint = .center) {
|
|
self.angle = angle
|
|
self.anchor = anchor
|
|
}
|
|
|
|
public func effectValue(size: CGSize) -> ProjectionTransform {
|
|
.init(CGAffineTransform.identity.rotated(by: CGFloat(angle.radians)))
|
|
}
|
|
|
|
public func body(content: Content) -> some View {
|
|
content
|
|
}
|
|
|
|
public var animatableData: AnimatablePair<Angle.AnimatableData, UnitPoint.AnimatableData> {
|
|
get {
|
|
.init(angle.animatableData, anchor.animatableData)
|
|
}
|
|
set {
|
|
(angle.animatableData, anchor.animatableData) = newValue[]
|
|
}
|
|
}
|
|
}
|
|
|
|
public extension View {
|
|
func rotationEffect(_ angle: Angle, anchor: UnitPoint = .center) -> some View {
|
|
modifier(_RotationEffect(angle: angle, anchor: anchor))
|
|
}
|
|
}
|