void InsertAndUpdateChildrenFrom(IList <AXmlObject> srcList)
{
for (int i = 0; i < srcList.Count; i++)
{
// End of our list?
if (i == this.Children.Count)
{
InsertChild(i, srcList[i]);
continue;
}
AXmlObject child = this.Children[i];
AXmlObject srcChild = srcList[i];
if (child.CanUpdateDataFrom(srcChild)) // includes offset test
// Does it need updating?
{
if (child.LastUpdatedFrom != srcChild)
{
child.UpdateDataFrom(srcChild);
AXmlContainer childAsContainer = child as AXmlContainer;
if (childAsContainer != null)
{
childAsContainer.InsertAndUpdateChildrenFrom(((AXmlContainer)srcChild).Children);
}
}
}
else
{
InsertChild(i, srcChild);
}
}
Assert(this.Children.Count == srcList.Count, "List lengths differ after update");
}
void RemoveChildrenNotIn(IList <AXmlObject> srcList)
{
Dictionary <int, AXmlObject> srcChildren = srcList.ToDictionary(i => i.StartOffset);
for (int i = 0; i < this.Children.Count;)
{
AXmlObject child = this.Children[i];
AXmlObject srcChild;
if (srcChildren.TryGetValue(child.StartOffset, out srcChild) && child.CanUpdateDataFrom(srcChild))
{
// Keep only one item with given offset (we might have several due to deletion)
srcChildren.Remove(child.StartOffset);
// If contaner that needs updating
AXmlContainer childAsContainer = child as AXmlContainer;
if (childAsContainer != null && child.LastUpdatedFrom != srcChild)
{
childAsContainer.RemoveChildrenNotIn(((AXmlContainer)srcChild).Children);
}
i++;
}
else
{
RemoveChild(i);
}
}
}