cedric pushed a commit to branch master.
http://git.enlightenment.org/core/efl.git/commit/?id=4f45749b14abeae6c0338f07b42970e814f85b8e
commit 4f45749b14abeae6c0338f07b42970e814f85b8e
Author: Marcel Hollerbach <m...@marcel-hollerbach.de>
Date: Wed Jul 31 19:52:08 2019 +0200
efl_ui_position_manager: add event for updating the range
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.blumenkra...@gmail.com>
Reviewed-by: Cedric BAIL <cedric.b...@free.fr>
Differential Revision: https://phab.enlightenment.org/D9462
---
src/lib/elementary/efl_ui_position_manager_entity.eo | 7 +++++++
src/lib/elementary/efl_ui_position_manager_grid.c | 9 +++++++--
src/lib/elementary/efl_ui_position_manager_list.c | 10 ++++++++--
3 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/src/lib/elementary/efl_ui_position_manager_entity.eo
b/src/lib/elementary/efl_ui_position_manager_entity.eo
index 4a65572181..64c68344d8 100644
--- a/src/lib/elementary/efl_ui_position_manager_entity.eo
+++ b/src/lib/elementary/efl_ui_position_manager_entity.eo
@@ -17,6 +17,12 @@ function Efl.Ui.Position_Manager.Batch_Access_Size {
return: int; [[The number of filled elements in the slice]]
};
+struct Efl.Ui.Position_Manager.Range_Update {
+ [[A struct containing the the updated range of visible items in this
position manger]]
+ start_id : uint; [[The first item that is visible]]
+ end_id : uint; [[The last item that is visible]]
+}
+
interface @beta Efl.Ui.Position_Manager.Entity extends Efl.Ui.Layout_Orientable
{
[[
@@ -112,5 +118,6 @@ interface @beta Efl.Ui.Position_Manager.Entity extends
Efl.Ui.Layout_Orientable
events {
content_size,changed : Eina.Size2D; [[Emitted when the aggregate size of
all items has changed. This can be used to resize an enclosing Pan object.]]
content_min_size,changed : Eina.Size2D; [[Emitted when the minimum size
of all items has changed. The minimum size is the size, that this
position_manager needs at *least* to display a single item.]]
+ visible_range,changed : Efl.Ui.Position_Manager.Range_Update;
}
}
diff --git a/src/lib/elementary/efl_ui_position_manager_grid.c
b/src/lib/elementary/efl_ui_position_manager_grid.c
index 2de7ddf896..bf8f793d12 100644
--- a/src/lib/elementary/efl_ui_position_manager_grid.c
+++ b/src/lib/elementary/efl_ui_position_manager_grid.c
@@ -38,6 +38,7 @@ _reposition_content(Eo *obj EINA_UNUSED,
Efl_Ui_Position_Manager_Grid_Data *pd)
unsigned int start_id, end_id, step;
const int len = 100;
Efl_Gfx_Entity *obj_buffer[len];
+ Efl_Ui_Position_Manager_Range_Update ev;
if (!pd->size) return;
if (pd->max_min_size.w <= 0 || pd->max_min_size.h <= 0) return;
@@ -111,8 +112,12 @@ _reposition_content(Eo *obj EINA_UNUSED,
Efl_Ui_Position_Manager_Grid_Data *pd)
//printf(">%d (%d, %d, %d, %d) %p\n", i, geom.x, geom.y, geom.w,
geom.h, ent);
efl_gfx_entity_geometry_set(ent, geom);
}
- pd->prev_run.start_id = start_id;
- pd->prev_run.end_id = end_id;
+ if (pd->prev_run.start_id != start_id || pd->prev_run.end_id != end_id)
+ {
+ ev.start_id = pd->prev_run.start_id = start_id;
+ ev.end_id = pd->prev_run.end_id = end_id;
+ efl_event_callback_call(obj,
EFL_UI_POSITION_MANAGER_ENTITY_EVENT_VISIBLE_RANGE_CHANGED, &ev);
+ }
}
static inline void
diff --git a/src/lib/elementary/efl_ui_position_manager_list.c
b/src/lib/elementary/efl_ui_position_manager_list.c
index 4a8497b4bd..e644a77736 100644
--- a/src/lib/elementary/efl_ui_position_manager_list.c
+++ b/src/lib/elementary/efl_ui_position_manager_list.c
@@ -142,6 +142,7 @@ position_content(Eo *obj EINA_UNUSED,
Efl_Ui_Position_Manager_List_Data *pd)
const int len = 100;
Eina_Size2D size_buffer[len];
Efl_Gfx_Entity *obj_buffer[len];
+ Efl_Ui_Position_Manager_Range_Update ev;
if (!pd->size) return;
if (pd->average_item_size <= 0) return;
@@ -233,8 +234,13 @@ position_content(Eo *obj EINA_UNUSED,
Efl_Ui_Position_Manager_List_Data *pd)
else
geom.x += size.w;
}
- pd->prev_run.start_id = start_id;
- pd->prev_run.end_id = end_id;
+ if (pd->prev_run.start_id != start_id || pd->prev_run.end_id != end_id)
+ {
+ ev.start_id = pd->prev_run.start_id = start_id;
+ ev.end_id = pd->prev_run.end_id = end_id;
+ efl_event_callback_call(obj,
EFL_UI_POSITION_MANAGER_ENTITY_EVENT_VISIBLE_RANGE_CHANGED, &ev);
+ }
+
}
static Eina_Value
--
