Tokamak/Sources/TokamakCore/Modifiers/Effects/OffsetEffect.swift

58 lines
1.4 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 7/12/21.
//
import Foundation
@frozen
public struct _OffsetEffect: GeometryEffect, Equatable {
public var offset: CGSize
@inlinable
public init(offset: CGSize) {
self.offset = offset
}
public func effectValue(size: CGSize) -> ProjectionTransform {
.init(.init(translationX: offset.width, y: offset.height))
}
public var animatableData: CGSize.AnimatableData {
get {
offset.animatableData
}
set {
offset.animatableData = newValue
}
}
public func body(content: Content) -> some View {
content
}
}
public extension View {
@inlinable
func offset(_ offset: CGSize) -> some View {
modifier(_OffsetEffect(offset: offset))
}
@inlinable
func offset(x: CGFloat = 0, y: CGFloat = 0) -> some View {
offset(CGSize(width: x, height: y))
}
}