namespace AppKit
{
    [Protocol(Name = "NSCollectionViewDelegateFlowLayout", WrapperType = typeof(NSCollectionViewDelegateFlowLayoutWrapper))]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "SizeForItem", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(NSIndexPath) }, ReturnType = typeof(CGSize), Selector = "collectionView:layout:sizeForItemAtIndexPath:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "InsetForSection", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(IntPtr) }, ReturnType = typeof(NSEdgeInsets), Selector = "collectionView:layout:insetForSectionAtIndex:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "MinimumLineSpacing", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(IntPtr) }, ReturnType = typeof(NFloat), Selector = "collectionView:layout:minimumLineSpacingForSectionAtIndex:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "MinimumInteritemSpacingForSection", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(IntPtr) }, ReturnType = typeof(NFloat), Selector = "collectionView:layout:minimumInteritemSpacingForSectionAtIndex:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "ReferenceSizeForHeader", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(IntPtr) }, ReturnType = typeof(CGSize), Selector = "collectionView:layout:referenceSizeForHeaderInSection:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "ReferenceSizeForFooter", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(NSCollectionView), typeof(NSCollectionViewLayout), typeof(IntPtr) }, ReturnType = typeof(CGSize), Selector = "collectionView:layout:referenceSizeForFooterInSection:")]
    [SupportedOSPlatform("macos")]
    [UnsupportedOSPlatform("maccatalyst")]
    public interface INSCollectionViewDelegateFlowLayout : INSCollectionViewDelegate, INativeObject, IDisposable
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("collectionView:layout:referenceSizeForFooterInSection:")]
        [OptionalMember]
        virtual CGSize ReferenceSizeForFooter(NSCollectionView! collectionView, NSCollectionViewLayout! collectionViewLayout, IntPtr section);
    }
}