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 override void Delete()
{
if (Anchor.Hookup != DragEnd.Hookup) // Enhance JohnT: eventually we may handle some more cases.
{
IParagraphOperations paragraphOps =
Anchor.Hookup.Parents.OfType <IHaveParagagraphOperations>().Select(isoHookup => isoHookup.GetParagraphOperations()).
FirstOrDefault();
if (paragraphOps != null)
{
Action makeSelection;
paragraphOps.InsertString(this, "", out makeSelection);
RootBox.Site.PerformAfterNotifications(makeSelection);
}
Start.Install();
return;
}
if (!CanDelete())
{
return;
}
Invalidate(); // while all old state still applies figure out old thing to invalidate.
Anchor.Hookup.Delete(Start, End);
Start.Install();
}
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;
}