/// <summary>
/// 清理可复用渲染格
/// 不需要public
/// </summary>
void _ClearAllListRenderDr()
{
if (_listItems != null)
{
int len = _listItems.Count;
for (int i = 0; i < len; ++i)
{
DynamicInfinityItem item = _listItems[i];
item.DRect = null;
}
}
}
/// <summary>
/// 获得待渲染的渲染器
/// </summary>
/// <returns></returns>
DynamicInfinityItem _GetNullDynmicItem()
{
int len = _listItems.Count;
for (int i = 0; i < len; ++i)
{
DynamicInfinityItem item = _listItems[i];
if (item.DRect == null)
{
return(item);
}
}
throw new Exception("Error");
}
/// <summary>
/// 通过动态格子获得动态渲染器
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
DynamicInfinityItem _GetDynmicItem(DynamicRect rect)
{
int len = _listItems.Count;
for (int i = 0; i < len; ++i)
{
DynamicInfinityItem item = _listItems[i];
if (item.DRect == null)
{
continue;
}
if (rect.Index == item.DRect.Index)
{
return(item);
}
}
return(null);
}
/// <summary>
/// 初始化渲染脚本
/// </summary>
virtual public void InitRendererList(DynamicInfinityItem.OnSelect OnSelect, DynamicInfinityItem.OnUpdateData OnUpdate)
{
if (_hasInited)
{
return;
}
//转换器
_rectTransformContainer = transform as RectTransform;
//获得蒙版尺寸
_maskSize = transform.parent.GetComponent <RectTransform>().rect.size;
_scrollRect = transform.parent.GetComponent <ScrollRect>();
//通过蒙版尺寸和格子尺寸计算需要的渲染器个数
_rendererCount = columnCount * (Mathf.CeilToInt(_maskSize.y / _GetBlockSizeY()) + 1);
_UpdateDynmicRects(_rendererCount);
_listItems = new List <DynamicInfinityItem>();
RectTransform rectTran = null;
for (int i = 0; i < _rendererCount; ++i)
{
GameObject child = GameObject.Instantiate(renderGO);
rectTran = child.GetComponent <RectTransform>();
rectTran.SetParent(transform);
rectTran.localRotation = Quaternion.identity;
rectTran.localScale = Vector3.one;
child.layer = gameObject.layer;
DynamicInfinityItem dfItem = child.GetComponent <DynamicInfinityItem>();
if (dfItem == null)
{
throw new Exception("Render must extend DynamicInfinityItem");
}
_listItems.Add(dfItem);
_listItems[i].DRect = _dictDRect[i];
_listItems[i].OnSelectHandler = OnSelect;
_listItems[i].OnUpdateDataHandler = OnUpdate;
child.SetActive(false);
_UpdateChildTransformPos(child, i);
}
_SetListRenderSize(_rendererCount);
_hasInited = true;
}
protected void _UpdateRender()
{
_rectMask.y = -_maskSize.y - _rectTransformContainer.anchoredPosition.y;
_inOverlaps.Clear();
foreach (DynamicRect dR in _dictDRect.Values)
{
if (dR.Overlaps(_rectMask))
{
_inOverlaps.Add(dR.Index, dR);
}
}
int len = _listItems.Count;
for (int i = 0; i < len; ++i)
{
DynamicInfinityItem item = _listItems[i];
if (item.DRect != null && !_inOverlaps.ContainsKey(item.DRect.Index))
{
item.DRect = null;
}
}
foreach (DynamicRect dR in _inOverlaps.Values)
{
if (_GetDynmicItem(dR) == null)
{
DynamicInfinityItem item = _GetNullDynmicItem();
item.DRect = dR;
_UpdateChildTransformPos(item.gameObject, dR.Index);
if (_dataProviders != null && dR.Index < _dataProviders.Count)
{
item.SetData(_dataProviders[dR.Index]);
}
}
}
}
