60 lines
1.6 KiB
Swift
60 lines
1.6 KiB
Swift
// Copyright 2020-2021 Tokamak contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Created by Carson Katri on 7/9/21.
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//
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import Foundation
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@frozen
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public struct _ScaleEffect: GeometryEffect, Equatable {
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public var scale: CGSize
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public var anchor: UnitPoint
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@inlinable
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public init(scale: CGSize, anchor: UnitPoint = .center) {
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self.scale = scale
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self.anchor = anchor
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}
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public func effectValue(size: CGSize) -> ProjectionTransform {
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.init(.init(scaleX: scale.width, y: scale.height))
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}
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public func body(content: Content) -> some View {
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content
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}
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}
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public extension View {
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@inlinable
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func scaleEffect(_ scale: CGSize, anchor: UnitPoint = .center) -> some View {
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modifier(_ScaleEffect(scale: scale, anchor: anchor))
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}
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@inlinable
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func scaleEffect(_ s: CGFloat, anchor: UnitPoint = .center) -> some View {
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scaleEffect(CGSize(width: s, height: s), anchor: anchor)
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}
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@inlinable
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func scaleEffect(
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x: CGFloat = 1.0,
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y: CGFloat = 1.0,
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anchor: UnitPoint = .center
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) -> some View {
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scaleEffect(CGSize(width: x, height: y), anchor: anchor)
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}
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}
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