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Remove NOTIFICATION_MOVED_IN_PARENT

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* This notification makes node children management very inefficient.
* Replaced by a NOTIFICATION_CHILDREN_CHANGED (and children_changed signal).
* Changed Canvas code (and similar) to use the above signal, to perform more efficiently.

This PR breaks compatibility (although this notification was very rarely used, even within the engine), but provides an alternate way to do the same.
It is required for the changes in #75627 to be entirely effective.
This commit is contained in:
Juan Linietsky
2023-04-05 18:53:32 +02:00
parent 44d539465a
commit 104392ef4e
12 changed files with 109 additions and 51 deletions
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13
scene/gui/control.cpp
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@ -3021,6 +3021,8 @@ void Control::_notification(int p_notification) {
Viewport *viewport = get_viewport();
ERR_FAIL_COND(!viewport);
data.RI = viewport->_gui_add_root_control(this);
get_parent()->connect(SNAME("child_order_changed"), callable_mp(get_viewport(), &Viewport::gui_set_root_order_dirty), CONNECT_REFERENCE_COUNTED);
}
data.parent_canvas_item = get_parent_item();
@ -3049,24 +3051,17 @@ void Control::_notification(int p_notification) {
if (data.RI) {
get_viewport()->_gui_remove_root_control(data.RI);
data.RI = nullptr;
get_parent()->disconnect(SNAME("child_order_changed"), callable_mp(get_viewport(), &Viewport::gui_set_root_order_dirty));
}
data.parent_canvas_item = nullptr;
data.is_rtl_dirty = true;
} break;
case NOTIFICATION_MOVED_IN_PARENT: {
case NOTIFICATION_CHILD_ORDER_CHANGED: {
// Some parents need to know the order of the children to draw (like TabContainer),
// so we update them just in case.
Control *parent_control = get_parent_control();
if (parent_control) {
parent_control->queue_redraw();
}
queue_redraw();
if (data.RI) {
get_viewport()->gui_set_root_order_dirty();
}
} break;
case NOTIFICATION_RESIZED: {