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Add pre-sort signal and notification in Container 

Allows processing before children are sorted, useful for custom
containers inherited from existing ones like BoxContainer.
This commit is contained in:
PouleyKetchoupp 2021-10-05 13:09:01 -07:00
parent 198b49d8b5
commit 1c0ebc85dd
5 changed files with 19 additions and 2 deletions
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10
doc/classes/Container.xml
View File

@ -29,6 +29,11 @@
<member name="mouse_filter" type="int" setter="set_mouse_filter" getter="get_mouse_filter" override="true" enum="Control.MouseFilter" default="1" />
</members>
<signals>
<signal name="pre_sort_children">
<description>
Emitted when children are going to be sorted.
</description>
</signal>
<signal name="sort_children">
<description>
Emitted when sorting the children is needed.
@ -36,7 +41,10 @@
</signal>
</signals>
<constants>
<constant name="NOTIFICATION_SORT_CHILDREN" value="50">
<constant name="NOTIFICATION_PRE_SORT_CHILDREN" value="50">
Notification just before children are going to be sorted, in case there's something to process beforehand.
</constant>
<constant name="NOTIFICATION_SORT_CHILDREN" value="51">
Notification for when sorting the children, it must be obeyed immediately.
</constant>
</constants>

6
scene/gui/container.cpp
View File

@ -87,6 +87,9 @@ void Container::_sort_children() {
return;
}
notification(NOTIFICATION_PRE_SORT_CHILDREN);
emit_signal(SceneStringNames::get_singleton()->pre_sort_children);
notification(NOTIFICATION_SORT_CHILDREN);
emit_signal(SceneStringNames::get_singleton()->sort_children);
pending_sort = false;
@ -174,7 +177,10 @@ void Container::_bind_methods() {
ClassDB::bind_method(D_METHOD("queue_sort"), &Container::queue_sort);
ClassDB::bind_method(D_METHOD("fit_child_in_rect", "child", "rect"), &Container::fit_child_in_rect);
BIND_CONSTANT(NOTIFICATION_PRE_SORT_CHILDREN);
BIND_CONSTANT(NOTIFICATION_SORT_CHILDREN);
ADD_SIGNAL(MethodInfo("pre_sort_children"));
ADD_SIGNAL(MethodInfo("sort_children"));
}

3
scene/gui/container.h
View File

@ -51,7 +51,8 @@ protected:
public:
enum {
NOTIFICATION_SORT_CHILDREN = 50
NOTIFICATION_PRE_SORT_CHILDREN = 50,
NOTIFICATION_SORT_CHILDREN = 51,
};
void fit_child_in_rect(Control *p_child, const Rect2 &p_rect);

1
scene/scene_string_names.cpp
View File

@ -73,6 +73,7 @@ SceneStringNames::SceneStringNames() {
focus_entered = StaticCString::create("focus_entered");
focus_exited = StaticCString::create("focus_exited");
pre_sort_children = StaticCString::create("pre_sort_children");
sort_children = StaticCString::create("sort_children");
body_shape_entered = StaticCString::create("body_shape_entered");

1
scene/scene_string_names.h
View File

@ -89,6 +89,7 @@ public:
StringName focus_entered;
StringName focus_exited;
StringName pre_sort_children;
StringName sort_children;
StringName finished;