1 /*
2  * Copyright 2023 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.compose.animation.scene.transformation
18 
19 import androidx.compose.ui.geometry.Offset
20 import com.android.compose.animation.scene.Element
21 import com.android.compose.animation.scene.ElementMatcher
22 import com.android.compose.animation.scene.Scale
23 import com.android.compose.animation.scene.SceneKey
24 import com.android.compose.animation.scene.SceneTransitionLayoutImpl
25 import com.android.compose.animation.scene.TransitionState
26 
27 /**
28  * Scales the draw size of an element. Note this will only scale the draw inside of an element,
29  * therefore it won't impact layout of elements around it.
30  */
31 internal class DrawScale(
32     override val matcher: ElementMatcher,
33     private val scaleX: Float,
34     private val scaleY: Float,
35     private val pivot: Offset = Offset.Unspecified,
36 ) : PropertyTransformation<Scale> {
37 
transformnull38     override fun transform(
39         layoutImpl: SceneTransitionLayoutImpl,
40         scene: SceneKey,
41         element: Element,
42         sceneState: Element.SceneState,
43         transition: TransitionState.Transition,
44         value: Scale,
45     ): Scale {
46         return Scale(scaleX, scaleY, pivot)
47     }
48 }
49