internal void PushHookup(GroupHookup child, int insertAt)
{
m_insertAfter = null; // default insert at start
m_insertRunAt = 0;
if (CurrentHookup != null)
{
if (insertAt > 0)
{
var prevChild = CurrentHookup.Children[insertAt - 1] as IItemsHookup;
if (prevChild != null)
{
if (prevChild.LastBox != null && prevChild.LastBox.Container == m_destination)
{
m_insertAfter = prevChild.LastBox;
}
var runHookup = prevChild.LastChild as LiteralStringParaHookup;
if (runHookup != null && runHookup.ParaBox == m_destination)
{
m_insertRunAt = runHookup.ClientRunIndex + 1;
}
}
}
CurrentHookup.InsertChildHookup(child, insertAt);
}
CurrentHookup = child;
}
public bool GetParagraphOps(out IParagraphOperations paragraphOps, out GroupHookup parentHookup, out int index)
{
paragraphOps = null;
ItemHookup itemHookup = null;
parentHookup = null;
foreach (var hookup in Hookup.Parents)
{
var isoHookup = hookup as IHaveParagagraphOperations;
if (isoHookup != null && isoHookup.GetParagraphOperations() != null)
{
parentHookup = hookup;
paragraphOps = isoHookup.GetParagraphOperations();
break;
}
itemHookup = hookup as ItemHookup;
}
if (paragraphOps == null || itemHookup == null)
{
index = -1;
return(false);
}
index = parentHookup.Children.IndexOf(itemHookup);
return(true);
}
public ViewBuilder(GroupBox destination)
{
m_destination = destination;
m_rootBox = destination.Root;
if (m_rootBox.RootHookup == null && m_destination == m_rootBox)
{
m_rootBox.RootHookup = new RootHookup(m_rootBox);
}
// Enhance JohnT: if we really use the capability to make a builder whose box is not the root,
// we may need a more subtle way to get the appropriate current hookup.
CurrentHookup = m_rootBox.RootHookup;
}
void IHookupInternal.SetParentHookup(GroupHookup parent)
{
Debug.Assert(parent == m_hookup,
"Can't make the parent of a LazyBox anything but the LazyHookup it already knows about");
}
