public void Reset()
{
CurrentCollectionItem = RootItem;
RootItem.ChildItems.Clear();
RootItem.CollectionType = 0;
GlobalItemStateStack.Clear();
GlobalItemStateStack.Add(new Dictionary <GlobalItemTag, EncodedItem>());
LocalItemState.Clear();
}
/// <summary>
/// Parses a single <see cref="EncodedItem"/>.
/// Call this repeatedly for every item to completely decode a report descriptor.
/// </summary>
/// <param name="item">The item to parse.</param>
public void Parse(EncodedItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
uint value = item.DataValue;
switch (item.Type)
{
case ItemType.Main:
ParseMain(item.TagForMain, value);
LocalItemState.Clear();
break;
case ItemType.Local:
switch (item.TagForLocal)
{
case LocalItemTag.Usage:
case LocalItemTag.UsageMinimum:
case LocalItemTag.UsageMaximum:
if (value <= 0xffff)
{
value |= GetGlobalItemValue(GlobalItemTag.UsagePage) << 16;
}
break;
}
LocalItemState.Add(new KeyValuePair <LocalItemTag, uint> (item.TagForLocal, value));
break;
case ItemType.Global:
switch (item.TagForGlobal)
{
case GlobalItemTag.Push:
GlobalItemStateStack.Add(new Dictionary <GlobalItemTag, EncodedItem> (GlobalItemState));
break;
case GlobalItemTag.Pop:
GlobalItemStateStack.RemoveAt(GlobalItemState.Count - 1);
break;
default:
switch (item.TagForGlobal)
{
case GlobalItemTag.ReportID:
ReportsUseID = true;
break;
}
GlobalItemState[item.TagForGlobal] = item;
break;
}
break;
}
}
/// <summary>
/// Resets the parser to its initial state.
/// </summary>
public void Clear()
{
CurrentCollection = RootCollection;
RootCollection.Clear();
GlobalItemStateStack.Clear();
GlobalItemStateStack.Add(new Dictionary <GlobalItemTag, EncodedItem> ());
LocalItemState.Clear();
Reports.Clear();
ReportsUseID = false;
}
