Merge pull request #6238 from Textualize/content-style-optimize

optimizations for Content and Style

Author: willmcgugan

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 
 - Added `GridLayout.max_column_width` https://github.com/Textualize/textual/pull/6228
+- Added `Content.fold` https://github.com/Textualize/textual/pull/6238
+- Added `strip_control_codes` to Content constructors https://github.com/Textualize/textual/pull/6238
+
 
 ### Changed 
 

src/textual/_compositor.py

@@ -695,9 +695,9 @@ def add_widget(
                             widget.container_size.height
                             - widget.scrollbar_size_horizontal
                         )
-                        widget.set_reactive(Widget.scroll_y, new_scroll_y)
-                        widget.set_reactive(Widget.scroll_target_y, new_scroll_y)
-                        widget.vertical_scrollbar._reactive_position = new_scroll_y
+                        widget.scroll_y = new_scroll_y
+                        widget.scroll_target_y = new_scroll_y
+                        widget.vertical_scrollbar.position = new_scroll_y
 
                 if visible:
                     # Add any scrollbars