public static IScrollViewLayout VariableViewSizeLayout <TData>(
IReactiveCollection <TData> data,
Func <TData, float> viewSizeFactory,
LinearLayoutSettings settings)
{
return(LinearVariableSizeLayout.Create(data, viewSizeFactory, settings));
}
public static TableConnectionsAndComponents <TViewGroup, GroupItem <TGroup, TData, TView> > PresentGrouped <TData,
TView, TGroup, TViewGroup>(
IViewPort viewPort,
IReactiveCollection <TData> collection,
Func <TData, TGroup> grouper,
IViewPool <TView, TData> viewPool,
IViewPool <TViewGroup, TGroup> groupViewPool,
Action <TData, TView> show,
Action <TGroup, TViewGroup> showGroup,
Func <IReactiveCollection <TData>, IScrollViewLayout> layoutFactory,
Func <TGroup, TGroup, int> groupSort,
Func <TData, TData, int> itemSort,
LinearLayoutSettings settings,
TableDelegates <TView> delegates = null,
TableDelegates <TViewGroup> groupViewDelegates = null
) where TView : ReusableView where TViewGroup : ReusableView
{
float LayoutBoundingsFactory(GroupItem <TGroup, TData, TView> item) =>
item.layout.size.value + settings.mainSize;
var grouped = new ReactiveCollection <GroupItem <TGroup, TData, TView> >();
var groupLayout = LinearVariableSizeLayout.Create(grouped, LayoutBoundingsFactory, settings);
var groupComponents = new TableConnectionsAndComponents <TViewGroup, GroupItem <TGroup, TData, TView> >()
{
layout = groupLayout,
collection = grouped,
viewPort = viewPort,
viewLoader = new LinearViewLoader <TViewGroup, GroupItem <TGroup, TData, TView> >(
new ViewPoolProxyMap <TViewGroup, GroupItem <TGroup, TData, TView>, TGroup>
{
viewPoolImplementation = groupViewPool,
map = i => i.g
}, (i, view) => showGroup(i.g, view)),
delegates = groupViewDelegates
};
List <GroupItem <TGroup, TData, TView> > groupPool = new List <GroupItem <TGroup, TData, TView> >();
void RecycleGroup(GroupItem <TGroup, TData, TView> group)
{
group.DisconnectAll();
((ReactiveCollection <TData>)group.collection).Clear();
groupPool.Add(group);
}
void UpdateLayoutsFromPos(int index)
{
groupLayout.RefillFromPos(index, grouped, LayoutBoundingsFactory);
for (var i = index; i < grouped.Count; i++)
{
var groupView = grouped[i];
groupView.layout.SetEndShift(groupLayout.EndPointForIndex(i));
}
}
GroupItem <TGroup, TData, TView> CreateGroupItem(TGroup g, TData firstItem)
{
if (groupPool.Count > 0)
{
var groupItem = groupPool.TakeLast();
((ReactiveCollection <TData>)groupItem.collection).Add(firstItem);
groupItem.g = g;
return(groupItem);
}
else
{
var groupColl = new ReactiveCollection <TData>();
groupColl.Add(firstItem);
var groupItem = new GroupItem <TGroup, TData, TView>();
groupItem.viewLoader =
new LinearViewLoader <TView, TData>(viewPool, show);
groupItem.delegates = delegates;
groupItem.collection = groupColl;
groupItem.viewPort = viewPort;
groupItem.layout = layoutFactory(groupItem.collection);
groupItem.layout.UpdatePrefabSizeInfo(viewPool.sampleViewSize(firstItem));
groupItem.g = g;
return(groupItem);
}
}
groupComponents.addConnection = collection.BindCollection(ev =>
{
if (ev.type == ReactiveCollectionEventType.Reset)
{
foreach (var groupView in grouped)
{
RecycleGroup(groupView);
}
grouped.Clear();
foreach (var tData in ev.newData)
{
var g = grouper(tData);
// Lazy read group view size
if (settings.forceSize == Vector2.zero)
{
settings.forceSize = groupViewPool.sampleViewSize(g);
}
if (grouped.TryFind(elem => EqualityComparer <TGroup> .Default.Equals(g, elem.g), out var coll))
{
((ReactiveCollection <TData>)coll.collection).InsertSorted(itemSort, tData);
}
else
{
var groupItem = CreateGroupItem(g, tData);
groupComponents.addConnection = groupItem;
grouped.InsertSorted((g1, g2) => groupSort(g1.g, g2.g), groupItem);
}
}
foreach (var groupView in grouped)
{
groupView.layout.count = groupView.collection.Count;
groupView.layout.RefreshSize();
}
groupLayout.Refill(grouped, LayoutBoundingsFactory);
for (var i = 0; i < grouped.Count; i++)
{
var groupView = grouped[i];
groupView.layout.SetEndShift(groupLayout.EndPointForIndex(i));
ControlItemVisibilityAndRecycle(groupView);
}
}
else if (ev.type == ReactiveCollectionEventType.Remove)
{
var g = grouper(ev.oldItem);
var groupView = grouped.Find(v => EqualityComparer <TGroup> .Default.Equals(v.g, g));
if (groupView == null)
{
throw new ZergRushException("wtf");
}
var gColl = ((ReactiveCollection <TData>)groupView.collection);
var index = grouped.IndexOf(groupView);
var initSize = groupView.layout.size.value;
gColl.Remove(ev.oldItem);
if (gColl.Count == 0)
{
RecycleGroup(groupView);
grouped.RemoveAt(index);
}
if (gColl.Count == 0 || initSize != groupView.layout.size.value)
{
UpdateLayoutsFromPos(index);
}
}
else if (ev.type == ReactiveCollectionEventType.Insert)
{
var g = grouper(ev.newItem);
bool needUpdatePos = false;
bool groupIsNew = false;
var indexOfGroup = grouped.IndexOf(v => EqualityComparer <TGroup> .Default.Equals(v.g, g));
var groupView = indexOfGroup != -1 ? grouped[indexOfGroup] : null;
if (groupView == null)
{
groupView = CreateGroupItem(g, ev.newItem);
groupComponents.addConnection = groupView;
indexOfGroup = grouped.InsertSorted((g1, g2) => groupSort(g1.g, g2.g), groupView);
groupView.layout.count = 1;
groupView.layout.RefreshSize();
needUpdatePos = true;
groupIsNew = true;
}
else
{
var initSize = groupView.layout.size.value;
((ReactiveCollection <TData>)groupView.collection).InsertSorted(itemSort, ev.newItem);
if (initSize != groupView.layout.size.value)
{
needUpdatePos = true;
}
}
if (needUpdatePos)
{
UpdateLayoutsFromPos(indexOfGroup);
}
if (groupIsNew)
{
ControlItemVisibilityAndRecycle(groupView);
}
}
else
{
throw new NotImplementedException();
}
});
ControlItemVisibilityAndRecycle(groupComponents);
if (viewPort is ScrollRectViewPort scroll)
{
groupComponents.addConnection = scroll.BindToLayout(groupLayout);
}
groupComponents.addConnection = new AnonymousDisposable(() =>
{
groupComponents.collection.ForEach(groupView =>
{
groupView.DisconnectAll();
});
});
return(groupComponents);
}