This changes the CRI logs and the variable names.
I still think this API needs some fixing in order to not abuse the
smart object API. This should be done before it's too late (i.e. E is
released and depends on it).
This is a new function that indicates whether an object is a child of a
parent or not. Dead simple, as this simply compares if parent == this.
Note that this check was impossible to do with the event grabber.
Also, rename group_children_iterate to group_members_iterate for
consistency with the other group_member functions.
@feature
Introduction to the problem:
- Efl.Canvas.Group has a method member_add() to add sub objects.
- Efl.Canvas.Group (simple smart object) does NOT actually delete the
objects on deletion. But:
- Efl.Canvas.Group.Clipped is a direct subclass and WILL delete the sub
objects on deletion.
Semantically, all smart objects (at least in EO and Elementary) will own
and delete sub objects automatically. Some exceptions are:
- Edje object (smart clipped) does not delete swallowed objects.
Edje object is a "clipped" smart object but it pops out all swallowed
children before getting deleted.
- Evas box/table/grid also pop out their children before deletion.
Those classes are all legacy & internal only.
- Elm.Widget will "manually" delete all its sub objects at deletion, as
it inherits from Efl.Canvas.Group but basically takes full ownership
of the sub objects. Note that member_add shouldn't be used on a
widget, the widgets do it themselves.
Also, smart clipped objects are much more convenient to use as they will
handle some things for you: color, visibility, moving and ownership.
So, the API member_add needs to be marked as own(). But right now
Efl.Canvas.Group does not own. Thus, here's the plan:
- Mark clipped objects as such with an internal API
- Merge clipped smart object features directly inside the standard
smart object.
- Get rid of Efl.Canvas.Group.Clipped entirely and watch all hell break
loose.
Ref T5301
Eina_Clist can actually change the pointer in the cell next bypassing
the CoW infrastructure leading to trouble. Considering the case here,
using the optimization of Eina_Clist is not necessary and if performance
issue arise, can be fixed by using a dichotomic search when removing
data. I don't think it is necessary to add this complexity without
a real life case.
This reverts commit f69686ba40.
this causes major crashes in e every time you move and resize a
window. i cant even debug it properly because i cant move or resize
windows to get terminals up to debug it... this is bad... so until a
fix is found better to go back to working...
adding an "event rect" is a common use case for rectangles, but I needed
a smarter event rect so I sent one off to school and it came back like this.
an event_grabber is a smart object which functions like a normal event rect
which has color(0,0,0,0), but with an important difference: it can have smart
members. event propagation works differently for an event_grabber:
normal:
event -> layer -> smart(obj1,obj2,obj3) ->(?) other objects
in this case, obj1,obj2,obj3 are all "inside" the smart object and their stacking
will always be considered as being inside the smart object. rendering is also
tied to the smart object in this case, as is clipping.
an event which reaches a smart object will be sent to the objects inside,
and then may continue through the smart object if there are no objects which
block repeating.
event_grabber:
event -> layer -> event_grabber -> obj1,obj2,obj3 -> STOP
in this case, obj1,obj2,obj3 are unmodified after being added to the event_grabber
and can be stacked, rendered, and clipped completely independently of the
event_grabber.
the event_grabber is considered an "event_parent" for this case. member objects
are not "inside" the event_grabber, and they are unable to receive events on
their own. instead, the event_grabber, which must be stacked above all its
members, receives events and propagates them top->down through its member objects.
if none of the member objects block the repeat of an event then the event will
still be blocked from further propagation past the event_grabber.
object lifetimes are independent of the event_grabber; deleting the event_grabber
has no effect on its members.
@feature
Jean-Philippe Andre
Mike Blumenkrantz
Cedric BAIL
Carsten Haitzler