public virtual void RemoveItem(GenericItem item)
{
var parentItem = item.GetParent();
var childId = parentItem.GetChildren().IndexOf(item);
NotifyChildrenWillBeRemoved(new ModelIndex(parentItem), childId, 1);
DeleteChildren(item, true);
// TODO: delete* itor;
parentItem.GetChildren().Remove(item);
NotifyChildrenRemoved(new ModelIndex(parentItem), childId, 1);
//std::vector<GenericItem*>::iterator itor = std::find(
// parent_item->getChildren().begin(), parent_item->getChildren().end(),
// item);
//if (itor != parent_item->getChildren().end())
//{
// size_t child_id = std::distance(parent_item->getChildren().begin(), itor);
// notifyChildrenWillBeRemoved(ModelIndex(parent_item), child_id, 1);
// deleteChildren(*itor, true);
// delete *itor;
// parent_item->getChildren().erase(itor);
// notifyChildrenRemoved(ModelIndex(parent_item), child_id, 1);
//}
}
/// <summary>
/// Gets the ordinal id (index) of the specified item in parent's children list.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public virtual int GetChildId(GenericItem item)
{
if (item == null || item.GetParent() == null)
{
return(-1);
}
var parentItem = item.GetParent();
return(parentItem.GetChildren().IndexOf(item));
//std::vector<GenericItem*>::iterator itor = std::find(
// parent_item->getChildren().begin(), parent_item->getChildren().end(), item);
//if (itor == parent_item->getChildren().end())
// return -1;
//return std::distance(parent_item->getChildren().begin(), itor);
}
/// <summary>
/// Creates a ModelIndex that represents the specified index.
///
/// This method is the inverse of getItemForIndex(const ModelIndex&).
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public virtual ModelIndex GetIndexForItem(GenericItem item)
{
// TODO: this is annoying. We should be able to just hand out the ModelIndex
// Right now we can't, since we're in a const method, operating on a const item
// In hindsight, the index we hand out will be modifiable so maybe we need
// to change the const-ness of the item parameter.
var parent = item.GetParent();
var child_id = GetChildId(item);
return(new ModelIndex(child_id != -1 ? parent.GetChildren()[child_id] : null));
}
