///<summary>
///Force a cell to be visible by expanding all parent cells
///</summary>
protected void ForceVisible(int index)
{
HierarchyCellData cell = hierarchy[index];
if (cell.parentIndex == -1)
{
return;
}
HierarchyCellData parent = hierarchy[cell.parentIndex];
parent.isCollapsed = false;
ForceVisible(cell.parentIndex);
}
///<summary>
///Check if a cell is visible in the hierarchy
///A cell can only be visible if any of its parent is collapsed
///</summary>
protected bool IsVisible(int index)
{
HierarchyCellData cell = hierarchy[index];
if (cell.parentIndex == -1)
{
return(true);
}
HierarchyCellData parent = hierarchy[cell.parentIndex];
if (parent.isCollapsed)
{
return(false);
}
return(IsVisible(cell.parentIndex));
}
///<summary>
///Call all cells to take action when the viewport scroll slow enough
///Useful for example for loading texture in cells which is slow
///</summary>
protected void LoadCellsFully()
{
if (activeCells == null)
{
return;
}
foreach (RectTransform cell in activeCells)
{
HierarchyCellData cellData = cell.GetComponent <CellBase>().hierarchyData;
if (cellData.isFullyLoaded)
{
continue;
}
CellDataBase data = dataSource[cellData.indexFlat];
cell.GetComponent <CellBase>().SetCellDataFully(data);
cellData.isFullyLoaded = true;
}
}
