Revert "Fix #100536: Control set_position resizes offsets/anchors"

This reverts commit ca57fe1db47cf0b161c6f35daa87182ee01d79bb.

scene/gui/control.cpp

@@ -902,13 +902,6 @@ void Control::_compute_offsets(Rect2 p_rect, const real_t p_anchors[4], real_t (
 	r_offsets[3] = p_rect.position.y + p_rect.size.y - (p_anchors[3] * parent_rect_size.y);
 }
 
-void Control::_compute_edge_positions(Rect2 p_rect, real_t (&r_edge_positions)[4]) {
-	for (int i = 0; i < 4; i++) {
-		real_t area = p_rect.size[i & 1];
-		r_edge_positions[i] = data.offset[i] + (data.anchor[i] * area);
-	}
-}
-
 /// Presets and layout modes.
 
 void Control::_set_layout_mode(LayoutMode p_mode) {
@@ -1439,13 +1432,10 @@ void Control::set_position(const Point2 &p_point, bool p_keep_offsets) {
 	}
 #endif // TOOLS_ENABLED
 
-	real_t edge_pos[4];
-	_compute_edge_positions(get_parent_anchorable_rect(), edge_pos);
-	Size2 offset_size(edge_pos[2] - edge_pos[0], edge_pos[3] - edge_pos[1]);
 	if (p_keep_offsets) {
-		_compute_anchors(Rect2(p_point, offset_size), data.offset, data.anchor);
+		_compute_anchors(Rect2(p_point, data.size_cache), data.offset, data.anchor);
 	} else {
-		_compute_offsets(Rect2(p_point, offset_size), data.anchor, data.offset);
+		_compute_offsets(Rect2(p_point, data.size_cache), data.anchor, data.offset);
 	}
 	_size_changed();
 }
@@ -1735,8 +1725,14 @@ Size2 Control::get_combined_minimum_size() const {
 
 void Control::_size_changed() {
 	Rect2 parent_rect = get_parent_anchorable_rect();
+
 	real_t edge_pos[4];
-	_compute_edge_positions(parent_rect, edge_pos);
+
+	for (int i = 0; i < 4; i++) {
+		real_t area = parent_rect.size[i & 1];
+		edge_pos[i] = data.offset[i] + (data.anchor[i] * area);
+	}
+
 	Point2 new_pos_cache = Point2(edge_pos[0], edge_pos[1]);
 	Size2 new_size_cache = Point2(edge_pos[2], edge_pos[3]) - new_pos_cache;
 

scene/gui/control.h

@@ -307,7 +307,6 @@ private:
 
 	void _compute_offsets(Rect2 p_rect, const real_t p_anchors[4], real_t (&r_offsets)[4]);
 	void _compute_anchors(Rect2 p_rect, const real_t p_offsets[4], real_t (&r_anchors)[4]);
-	void _compute_edge_positions(Rect2 p_rect, real_t (&r_edge_positions)[4]);
 
 	void _set_layout_mode(LayoutMode p_mode);
 	void _update_layout_mode();

tests/scene/test_control.h

@@ -1096,38 +1096,6 @@ TEST_CASE("[SceneTree][Control] Anchoring") {
 	memdelete(test_control);
 }
 
-TEST_CASE("[SceneTree][Control] Set position does not cause size side-effects") {
-	Control *test_control = memnew(Control);
-	test_control->set_size(Size2(1, 1));
-	test_control->set_custom_minimum_size(Size2(2, 2));
-	Window *root = SceneTree::get_singleton()->get_root();
-	root->add_child(test_control);
-
-	SUBCASE("Shrinks after setting position and smaller custom minimum size (without keeping offsets)") {
-		test_control->set_position(Point2(10, 10), false);
-		SceneTree::get_singleton()->process(0);
-
-		test_control->set_custom_minimum_size(Size2(0, 0));
-		SceneTree::get_singleton()->process(0);
-		CHECK_MESSAGE(
-				test_control->get_size().is_equal_approx(Vector2(1, 1)),
-				"Should shrink to original size after setting a smaller custom minimum size.");
-	}
-
-	SUBCASE("Shrinks after setting position and smaller custom minimum size (while keeping offsets)") {
-		test_control->set_position(Point2(10, 10), true);
-		SceneTree::get_singleton()->process(0);
-
-		test_control->set_custom_minimum_size(Size2(0, 0));
-		SceneTree::get_singleton()->process(0);
-		CHECK_MESSAGE(
-				test_control->get_size().is_equal_approx(Vector2(1, 1)),
-				"Should shrink to original size after setting a smaller custom minimum size.");
-	}
-
-	memdelete(test_control);
-}
-
 TEST_CASE("[SceneTree][Control] Custom minimum size") {
 	Control *test_control = memnew(Control);
 	test_control->set_custom_minimum_size(Size2(4, 2));