public void Scan(PageItemCollection Items)
{
ActualIndexes.Clear();
Files.Clear();
for (int i = 0; Items.Count > i; i++)
{
FileItem fi = Items[i] as FileItem;
if (fi != null)
{
if (fi.Playable && System.IO.File.Exists(fi.File.Path))
{
ActualIndexes.Add(i);
Files.Add(fi);
}
}
}
ShuffledIndexes = Enumerable.Range(0, Files.Count).ToArray();
Random rng = new Random();
int n = Files.Count;
while (n > 1)
{
n--;
int k = rng.Next(n + 1);
int tmp = ShuffledIndexes[k];
ShuffledIndexes[k] = ShuffledIndexes[n];
ShuffledIndexes[n] = tmp;
}
Index = -1;
}
protected virtual PageItem FindPageItem(PageItemCollection Items, ListItem ListItem)
{
for (int i = 0; Items.Count > i; i++)
{
if (Items[i].ListItem == ListItem)
{
return(Items[i]);
}
}
return(null);
}
public OrderManager(PageItemCollection Items)
{
Scan(Items);
}