protected virtual void UpdateItem(IListViewItem item, int order, float offset, ref bool doneSettling)
{
var targetPosition = m_StartPosition + offset * Vector3.back;
var targetRotation = Quaternion.identity;
UpdateItemTransform(item, order, targetPosition, targetRotation, false, ref doneSettling);
}
protected virtual void UpdateItemTransform(IListViewItem item, int order, Vector3 targetPosition,
Quaternion targetRotation, bool dontSettle, ref bool doneSettling)
{
if (m_Settling && !dontSettle && m_EnableSettling)
{
var localPosition = Vector3.Lerp(item.localPosition, targetPosition, m_SettleSpeed);
item.localPosition = localPosition;
if (localPosition != targetPosition)
{
doneSettling = false;
}
var localRotation = Quaternion.Lerp(item.localRotation, targetRotation, m_SettleSpeed);
item.localRotation = localRotation;
if (localRotation != targetRotation)
{
doneSettling = false;
}
}
else
{
item.localPosition = targetPosition;
item.localRotation = targetRotation;
}
item.SetSiblingIndex(order);
}
private void UpdateItemSize(IListViewItem item)
{
using (var g = CreateGraphics())
{
UpdateItemSize(item, g);
}
}
public void Setup(IListViewItemModel[] data)
{
ScrollRect.onValueChanged.AddListener(OnDragDetectionPositionChange);
this.data = data;
this.ItemHeight = ItemPool.ItemHeight;
int length = data.Length;
DragDetectionT.sizeDelta = new Vector2(DragDetectionT.sizeDelta.x, length * ItemHeight + (length - 1) * spacing);
IListViewItem[][] components = new IListViewItem[TargetVisibleItemCount + BufferSize][];
for (int i = 0; i < TargetVisibleItemCount + BufferSize; i++)
{
GameObject itemGO = ItemPool.ItemBorrow();
itemGO.transform.SetParent(ContentT);
itemGO.SetActive(true);
itemGO.transform.localScale = Vector3.one;
var items = itemGO.GetComponents <IListViewItem>();
var itemModel = data[dataTail];
int itemType = itemModel.GetItemType();
items[itemType].Setup(itemModel);
components[i] = items;
dataTail++;
}
for (int i = 0; i < length; i++)
{
int itemType = data[i].GetItemType();
modelToItem.Add(data[i], components[i % components.Length][itemType]);
}
}
private void UpdateItemSize(IListViewItem item, Graphics g)
{
var size = g.MeasureString(item.Text, Font);
size.Width++;
if (ShowIcons)
{
size.Width += _iconSize + 8;
}
item.Area = new Rectangle(item.Area.Left, item.Area.Top, (int)size.Width, item.Area.Height);
}
protected virtual void UpdateVisibleItem(TData datum, int order, float offset, ref bool doneSettling)
{
TItem item;
var index = datum.index;
if (!m_ListItems.TryGetValue(index, out item))
{
GetNewItem(datum, out item);
}
m_LastUpdatedItemItem = item;
UpdateItem(item, order, offset, ref doneSettling);
}
private void UpdateContentSize(IListViewItem item)
{
var itemWidth = item.Area.Right + 1;
if (itemWidth == ContentSize.Width)
{
UpdateContentSize();
return;
}
if (itemWidth > ContentSize.Width)
{
ContentSize = new Size(itemWidth, ContentSize.Height);
Invalidate();
}
}
public ListViewItemEventArgs(IListViewItem item) => Item = item;
/// <summary>
/// This callback updates a list item; we do this a bit tardy to allow the underlying session to
/// update to its new status.
/// </summary>
/// <param name="state">List item to update</param>
private void UpdateListItem(object state)
{
IListViewItem item = (IListViewItem)state;
item.UpdateState();
}
private void UpdateItemPosition(IListViewItem item, int index)
{
item.Area = new Rectangle(2, (index * ItemHeight), item.Area.Width, ItemHeight);
}
public int GetItemIndex(IListViewItem item)
{
return(Items.IndexOf(item));
}
