this freezes the manager object of the user of the interface. This
improves the overall performance when moving arround focus in a
scrollable object, since no new relations are needed to be recalculated.
This safes up about 2% in the "Scroller 2" test. Additional
optimizations are added in another commit.
Differential Revision: https://phab.enlightenment.org/D7349
Summary:
this patch refactories a momentum scroll animator logics.
1. animation duration
animating runs within a one second now.
and if it needs more time to animate, it decrease intepolation progress by dividing some value.
current logic makes sense however, it is not easy to read to know how it works.
this patch modify current logic to calculate distance to move, and time to animate.
2. distance to move
we can apply simple physics something like mass of pan and friction of scroller itself.
but this patch apply just geometric seqeunce to calculate distance to go.
it's more easy to customize behavior of scroller than current sine graph based one.
3. accelerate logic
scroller sets 'extra_time' to accelerate a scroller for now.
but this patch modify logic not to use it.
however it uses current momenutum velocity as a bais of next momentum animating.
@feature
Reviewers: zmike, #reviewers, Hermet
Reviewed By: #reviewers, Hermet
Subscribers: Hermet, cedric, zmike
Tags: #efl, #do_not_merge
Differential Revision: https://phab.enlightenment.org/D6643
Summary:
there are unused ifdef blocks and also there is a variable that accessed from nowhere.
this patch removes both of theme.
related with D6567
Reviewers: Hermet, eagleeye, devilhorns
Reviewed By: Hermet
Subscribers: cedric, zmike
Tags: #efl, #do_not_merge
Differential Revision: https://phab.enlightenment.org/D6585
The freeze property is a set() only but could internally
be reset to false, after dragging a vertical or horizontal slider.
Test scenario:
elementary_test -to scroller
Click Freeze, test the mouse wheel (can't do anything), drag a
scroller side bar, test the mouse wheel again.
Before this patch, the scroller would scroll. After the patch, the
scroller remains fixed, respecting the value of freeze.
FIXME: It is possible that the proper fix would be to disable
bars drag during freeze, but that is not the case currently.
NOTE: freeze, hold, movement_block, lock_x/y have very similar
meanings. The doc really needs clarification here, and some
property might be removed. Also, freeze and hold have no
getter, only a setter. drag_lock_x/y is part of elm_widget,
and not specific to scrollers.
elm_pan_gravity_{set,get} are functions that were generated as
legacy APIs (in other words EAPI), but were never actually exposed
to applications as they were protected behind EFL_EO_API_SUPPORT
(see elm_interfaces.h).
This patch restores the ABI compatibility with elementary 1.18.
now set default wheel scroll accel to 7 as epr the confgi upgrade code
and also improve the acceleration to "rely on itself" and feedback
loop. this is so much better now i can scroll through things in a
whisk with the wheel.
fixes T4263
@fix
Marcel Hollerbach
Wonki Kim
Jean-Philippe Andre
Marcel Hollerbach
Hosang Kim
Tom Hacohen
Stefan Schmidt
Carsten Haitzler
Cedric BAIL