This commit introduces the correct placement of group items and normal
items. The gruop items are also floating on the top of there child items
in case they are not visible on theire own. Items without group items
between items with groups are right now a little bit troublesome and
might display the wrong group, we *need* to check later on if this case
is even needed or not.
The whole placement code now uses 2 different caches, one cache is
counting how many groups we have, and how many items each group has.
Additionally, the size of the header + the state of the header is
safes. The second cache does translate that into how much size one full
group needs on the screen to be placed, this makes the calculation of
the correct item placement a lot faster.
The invalidation of the caches is also quite good. The size cache only
depends on the viewport size and the group cache, which means its
*never* recaclulated on a normal scroll operation. Only if items are
added, or the widget is resized (The later case can also be more
optimized). The group cache is only invalidated when new items are
added (Which is normally not happening during rendering)
ref T8115
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9608
every batched call will now contain the id of the first item, if the
conditions in the documentation are met.
ref T8115
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9586
Summary:
the behaviour here is that the next item according to the direction is
getting focused. This sounds easy but is quite complex given the fact
that the items might be hidden. This is the first draft for this, to see
how good it performes.
Reviewers: zmike, stefan_schmidt, cedric
Reviewed By: zmike
Subscribers: #reviewers, #committers
Tags: #efl
Differential Revision: https://phab.enlightenment.org/D9496
the new event can be used to message back the currently visible range
from the position to the collection / collection_view.
Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9462
this commit enables access to the item structure of the collection via a
function callback. The function callback now enables batching for items,
which does not pay off right now. However, a few more optimizations can
be done in order to get the whole payoff.
Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D9445
This does the following rename as per T8058:
Efl.Ui.Item_Position_Manager -> Efl.Ui.Position_Manager.Entity
Efl.Ui.Grid_Position_Manager -> Efl.Ui.Position_Manager.Grid
Efl.Ui.List_Position_Manager -> Efl.Ui.Position_Manager.List
Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D9388
Marcel Hollerbach
Cedric BAIL