/// <summary>
/// Prepends a new item with <see cref="GenListItemType"/> to the beginning of a given GenList widget or the beginning of the children list, if the parent is given.
/// </summary>
/// <param name="itemClass">The itemClass defines how to display the data.</param>
/// <param name="data">The item data.</param>
/// <param name="type">The genlist item type.</param>
/// <param name="parent">The parent item, otherwise null if there is no parent item.</param>
/// <returns>Return a newly added genlist item that contains the data and itemClass.</returns>
/// <since_tizen> preview </since_tizen>
public GenListItem Prepend(GenItemClass itemClass, object data, GenListItemType type, GenListItem parent)
{
GenListItem item = new GenListItem(data, itemClass, this);
item.Handle = Interop.Elementary.elm_genlist_item_prepend(RealHandle, itemClass.UnmanagedPtr, (IntPtr)item.Id, parent, (int)type, null, (IntPtr)item.Id);
AddInternal(item);
return(item);
}
/// <summary>
/// Inserts an item in a GenList widget using a user-defined sort function.
/// </summary>
/// <param name="itemClass">The itemClass defines how to display the data.</param>
/// <param name="data">The item data.</param>
/// <param name="comparison">User-defined comparison function that defines the sort order based on the genlist item and its data.</param>
/// <param name="type">The genlist item type.</param>
/// <param name="parent">The parent item, otherwise null if there is no parent item.</param>
/// <returns>Return a genlist item that contains the data and itemClass.</returns>
/// <since_tizen> preview </since_tizen>
public GenListItem InsertSorted(GenItemClass itemClass, object data, Comparison <object> comparison, GenListItemType type, GenListItem parent)
{
GenListItem item = new GenListItem(data, itemClass);
Interop.Elementary.Eina_Compare_Cb compareCallback = (handle1, handle2) =>
{
GenListItem first = (ItemObject.GetItemByHandle(handle1) as GenListItem) ?? item;
GenListItem second = (ItemObject.GetItemByHandle(handle2) as GenListItem) ?? item;
return(comparison(first.Data, second.Data));
};
IntPtr handle = Interop.Elementary.elm_genlist_item_sorted_insert(
RealHandle, // genlist handle
itemClass.UnmanagedPtr, // item clas
(IntPtr)item.Id, // data
parent, // parent
(int)type, // item type
compareCallback, // compare callback
null, //select callback
(IntPtr)item.Id); // callback data
item.Handle = handle;
AddInternal(item);
return(item);
}
/// <summary>
/// Inserts an item with <see cref="GenListItemType"/> after another item under a parent in a GenList widget.
/// </summary>
/// <param name="itemClass">The itemClass defines how to display the data.</param>
/// <param name="data">The item data.</param>
/// <param name="after">The item after which to place this new one.</param>
/// <param name="type">The genlist item type.</param>
/// <param name="parent">The parent item, otherwise null if there is no parent item.</param>
/// <returns>Return a newly added genlist item that contains data and itemClass.</returns>
/// <since_tizen> preview </since_tizen>
public GenListItem InsertAfter(GenItemClass itemClass, object data, GenListItem after, GenListItemType type, GenListItem parent)
{
GenListItem item = new GenListItem(data, itemClass);
// insert before the `before` list item
IntPtr handle = Interop.Elementary.elm_genlist_item_insert_before(
RealHandle, // genlist handle
itemClass.UnmanagedPtr, // item class
(IntPtr)item.Id, // data
parent, // parent
after, // after
(int)type, // item type
null, // select callback
(IntPtr)item.Id); // callback data
item.Handle = handle;
AddInternal(item);
return(item);
}
/// <summary>
/// Inserts an item with <see cref="GenListItemType"/> before another item in a GenList widget.
/// It is the same tree level or group as the item before which it is inserted.
/// </summary>
/// <param name="itemClass">The itemClass defines how to display the data.</param>
/// <param name="data">The item data.</param>
/// <param name="before">The item before which to place this new one.</param>
/// <param name="type">The genlist item type.</param>
/// <returns>Return a newly added genlist item that contains data and itemClass.</returns>
/// <since_tizen> preview </since_tizen>
public GenListItem InsertBefore(GenItemClass itemClass, object data, GenListItem before, GenListItemType type)
{
return(InsertBefore(itemClass, data, before, type, null));
}
/// <summary>
/// Prepends a new item with <see cref="GenListItemType"/> to the beginning of a given genlist widget.
/// </summary>
/// <param name="itemClass">The itemClass defines how to display the data.</param>
/// <param name="data">The item data.</param>
/// <param name="type">The genlist item type.</param>
/// <returns>Return a newly added genlist item that contains data and itemClass.</returns>
/// <since_tizen> preview </since_tizen>
public GenListItem Prepend(GenItemClass itemClass, object data, GenListItemType type)
{
return(Prepend(itemClass, data, type, null));
}