| /* |
| * Copyright 2022 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.lazy.grid |
| |
| import androidx.compose.foundation.ExperimentalFoundationApi |
| import androidx.compose.runtime.Immutable |
| |
| /** |
| * Represents the span of an item in a [LazyVerticalGrid]. |
| */ |
| @Suppress("INLINE_CLASS_DEPRECATED") |
| @Immutable |
| inline class GridItemSpan internal constructor(private val packedValue: Long) { |
| /** |
| * The span of the item on the current line. This will be the horizontal span for items of |
| * [LazyVerticalGrid]. |
| */ |
| @ExperimentalFoundationApi |
| val currentLineSpan: Int get() = packedValue.toInt() |
| } |
| |
| /** |
| * Creates a [GridItemSpan] with a specified [currentLineSpan]. This will be the horizontal span |
| * for an item of a [LazyVerticalGrid]. |
| */ |
| fun GridItemSpan(currentLineSpan: Int) = GridItemSpan(currentLineSpan.toLong()) |
| |
| /** |
| * Scope of lambdas used to calculate the spans of items in lazy grids. |
| */ |
| sealed interface LazyGridItemSpanScope { |
| /** |
| * The max current line (horizontal for vertical grids) the item can occupy, such that |
| * it will be positioned on the current line. |
| */ |
| val maxCurrentLineSpan: Int |
| |
| /** |
| * The max line span (horizontal for vertical grids) an item can occupy. This will be the |
| * number of columns in vertical grids or the number of rows in horizontal grids. |
| */ |
| val maxLineSpan: Int |
| } |