When dragged, spinners reset to 0 and then start dragging in a user's view.
But shouldn't it start from the value that is set last time?
For example, if I set a spinner's value to 20, then I drag it, it appears to
start dragging from 0.
I looked into the code, finding that it JUST work as I said:
static void
_drag_cb(void *data,
Evas_Object *_obj __UNUSED__,
const char *emission __UNUSED__,
const char *source __UNUSED__)
{
double pos = 0.0, offset, delta;
Evas_Object *obj = data;
ELM_SPINNER_DATA_GET(obj, sd);
Elm_Widget_Smart_Data *wd = eo_data_get(obj, ELM_OBJ_WIDGET_CLASS);
if (sd->entry_visible) return;
edje_object_part_drag_value_get
(wd->resize_obj, "elm.dragable.slider", &pos, NULL);
offset = sd->step * _elm_config->scale;
!!! delta = (pos - sd->drag_start_pos) * offset;
/* If we are on rtl mode, change the delta to be negative on such changes */
if (elm_widget_mirrored_get(obj)) delta *= -1;
if (_value_set(data, sd->drag_start_pos + delta)) _label_write(data);
sd->dragging = 1;
}
I don't think implementing "start drag from current value" is difficult. Just
store a drag_start_value in _drag_start_cb, and change the !!!-marked line to
delta = (pos - sd->drag_start_pos) * offset + sd->drag_start_value;
So, why not? Isn't it a better user experience?
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