Remove unnecessary on_layout_changed call. Canvas size stream automat…

…ically used.

nion/swift/MetadataPanel.py

@@ -295,8 +295,6 @@ def __init__(self, document_controller: DocumentController.DocumentController, p
 
         def content_size_changed(content_size: Geometry.IntSize) -> None:
             def _content_height_changed() -> None:
-                # start = time.perf_counter_ns()
-
                 # the code below will do the upstream part of the line below. we can't use the line below
                 # because it will lay out the children again.
                 # metadata_editor_canvas_item.update_layout(Geometry.IntPoint(), content_size)
@@ -306,11 +304,6 @@ def _content_height_changed() -> None:
 
                 # set the content size and send it on up so the scroll area sees it.
                 metadata_editor_canvas_item._set_canvas_size(content_size)
-                if callable(metadata_editor_canvas_item.on_layout_updated):
-                    metadata_editor_canvas_item.on_layout_updated(metadata_editor_canvas_item.canvas_origin, metadata_editor_canvas_item.canvas_size, False)
-
-                # end = time.perf_counter_ns()
-                # print(f"height change {(end - start) / 1000}us")
             self.__thread_helper.call_on_main_thread("_content_height_changed", _content_height_changed)
 
         metadata_editor_canvas_item = ThreadedCanvasItem(ui.get_font_metrics, delegate, content_size_changed)

setup.cfg

@@ -2,6 +2,7 @@
 name = nionswift
 version = 0.16.8
 # niondata >= 0.15.3 (DataMetadata read-only props), nionutils >= 0.4.7 (DatetimeToStringConverter/is_local)
+# nionui >= 0.6.12 (layout)
 author = Nion Software
 author_email = swift@nion.com
 description = Nion Swift: Scientific Image Processing.