protected void UndoAction_ItemParaFirst(int aItemNo, int aOffset, bool aNewParaFirst)
{
HCUndoList vUndoList = GetUndoList();
if ((vUndoList != null) && vUndoList.Enable)
{
HCUndo vUndo = vUndoList.Last;
if (vUndo != null)
{
HCItemParaFirstUndoAction vItemAction = new HCItemParaFirstUndoAction();
vItemAction.ItemNo = aItemNo;
vItemAction.Offset = aOffset;
vItemAction.OldParaFirst = Items[aItemNo].ParaFirst;
vItemAction.NewParaFirst = aNewParaFirst;
vUndo.Actions.Add(vItemAction);
}
}
}
public HCCustomUndoAction ActionAppend(UndoActionTag ATag, int AItemNo, int AOffset)
{
HCCustomUndoAction Result = null;
switch (ATag)
{
case UndoActionTag.uatDeleteText:
case UndoActionTag.uatInsertText:
Result = new HCTextUndoAction();
break;
case UndoActionTag.uatDeleteItem:
case UndoActionTag.uatInsertItem:
Result = new HCItemUndoAction();
break;
case UndoActionTag.uatItemProperty:
Result = new HCItemParaFirstUndoAction();
break;
case UndoActionTag.uatItemSelf:
Result = new HCItemSelfUndoAction();
break;
default:
Result = new HCCustomUndoAction();
break;
}
Result.Tag = ATag;
Result.ItemNo = AItemNo;
Result.Offset = AOffset;
this.Actions.Add(Result);
return(Result);
}