PositionedPage.kt
/*
* Copyright 2023 The Android Open Source Project
*
* 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.
*/
package androidx.compose.foundation.pager
import androidx.compose.foundation.ExperimentalFoundationApi
import androidx.compose.foundation.gestures.Orientation
import androidx.compose.ui.layout.Placeable
import androidx.compose.ui.unit.IntOffset
@OptIn(ExperimentalFoundationApi::class)
internal class PositionedPage(
override val index: Int,
override val offset: Int,
val key: Any,
val orientation: Orientation,
val wrappers: MutableList<PagerPlaceableWrapper>,
val visualOffset: IntOffset
) : PageInfo {
fun place(scope: Placeable.PlacementScope) = with(scope) {
repeat(wrappers.size) { index ->
val placeable = wrappers[index].placeable
val offset = wrappers[index].offset
if (orientation == Orientation.Vertical) {
placeable.placeWithLayer(offset + visualOffset)
} else {
placeable.placeRelativeWithLayer(offset + visualOffset)
}
}
}
}