Merge pull request #96237 from KoBeWi/you_expected_path_to_even_less_bugs_branch_but_it_was_me,_dio

Fix Path2D splitting

editor/plugins/path_2d_editor_plugin.cpp

@@ -197,12 +197,7 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 			const Vector2 new_point = xform.affine_inverse().xform(gpoint2);
 			curve->add_point(new_point, Vector2(0, 0), Vector2(0, 0), insertion_point + 1);
 
-			EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
-			undo_redo->create_action(TTR("Split Curve"));
-			undo_redo->add_do_method(curve.ptr(), "add_point", new_point, Vector2(0, 0), Vector2(0, 0), insertion_point + 1);
-			undo_redo->add_undo_method(curve.ptr(), "remove_point", insertion_point + 1);
-
-			action = ACTION_MOVING_NEW_POINT;
+			action = ACTION_MOVING_NEW_POINT_FROM_SPLIT;
 			action_point = insertion_point + 1;
 			moving_from = curve->get_point_position(action_point);
 			moving_screen_from = gpoint2;
@@ -245,6 +240,16 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 					undo_redo->commit_action(false);
 				} break;
 
+				case ACTION_MOVING_NEW_POINT_FROM_SPLIT: {
+					undo_redo->create_action(TTR("Split Curve"));
+					undo_redo->add_do_method(curve.ptr(), "add_point", Vector2(), Vector2(), Vector2(), action_point);
+					undo_redo->add_do_method(curve.ptr(), "set_point_position", action_point, cpoint);
+					undo_redo->add_undo_method(curve.ptr(), "remove_point", action_point);
+					undo_redo->add_do_method(canvas_item_editor, "update_viewport");
+					undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
+					undo_redo->commit_action(false);
+				} break;
+
 				case ACTION_MOVING_IN: {
 					if (original_mouse_pos != gpoint) {
 						undo_redo->create_action(TTR("Move In-Control in Curve"));
@@ -350,7 +355,8 @@ bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
 					break;
 
 				case ACTION_MOVING_POINT:
-				case ACTION_MOVING_NEW_POINT: {
+				case ACTION_MOVING_NEW_POINT:
+				case ACTION_MOVING_NEW_POINT_FROM_SPLIT: {
 					curve->set_point_position(action_point, cpoint);
 				} break;
 
@@ -573,6 +579,10 @@ void Path2DEditor::_cancel_current_action() {
 			curve->remove_point(curve->get_point_count() - 1);
 		} break;
 
+		case ACTION_MOVING_NEW_POINT_FROM_SPLIT: {
+			curve->remove_point(action_point);
+		} break;
+
 		case ACTION_MOVING_IN: {
 			curve->set_point_in(action_point, moving_from);
 			curve->set_point_out(action_point, mirror_handle_length ? -moving_from : (-moving_from.normalized() * orig_out_length));

editor/plugins/path_2d_editor_plugin.h

@@ -81,6 +81,7 @@ class Path2DEditor : public HBoxContainer {
 		ACTION_NONE,
 		ACTION_MOVING_POINT,
 		ACTION_MOVING_NEW_POINT,
+		ACTION_MOVING_NEW_POINT_FROM_SPLIT,
 		ACTION_MOVING_IN,
 		ACTION_MOVING_OUT,
 	};