comments

sandbox/uber.css

@@ -1,5 +1,4 @@
 #uber1 {
-  /* border: heavy green;*/
   layout: vertical;
   text: on dark_green;
   overflow: hidden auto;
@@ -8,22 +7,6 @@
 
 .list-item {
   height: 8;
-
   min-width: 80;
-
-  /* height: 8; */
-  /* margin: 1 2; */
   text-background: dark_blue;
 }
-
-#child1 {
-}
-
-#child2 {
-}
-
-/* #uber2 {
-  margin: 3;
-  layout: dock;
-  docks: _default=left;
-} */

sandbox/uber.py

@@ -20,27 +20,15 @@ class BasicApp(App):
             Widget(id="uber2-child1"),
             Widget(id="uber2-child2"),
         )
-
         uber1 = Widget(
             Placeholder(id="child1", classes={"list-item"}),
             Placeholder(id="child2", classes={"list-item"}),
             Placeholder(id="child3", classes={"list-item"}),
             Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(classes={"list-item"}),
-            # Placeholder(id="child3", classes={"list-item"}),
-        )
-        uber1.show_horizontal_scrollbar = True
-
-        self.mount(
-            uber1=uber1
-            # uber2=uber2,
+            Placeholder(classes={"list-item"}),
+            Placeholder(classes={"list-item"}),
         )
+        self.mount(uber1=uber1)
 
     async def on_key(self, event: events.Key) -> None:
         await self.dispatch_key(event)

src/textual/_border.py

@@ -28,6 +28,8 @@ BORDER_CHARS: dict[str, tuple[str, str, str]] = {
     "wide": ("▁▁▁", "▏ ▕", "▔▔▔"),
 }
 
+# Some of the borders are on the widget background and some are on the background of the parent
+# This table selects which for each character, 0 indicates the widget, 1 selects the parent
 BORDER_LOCATIONS: dict[
     str, tuple[tuple[int, int, int], tuple[int, int, int], tuple[int, int, int]]
 ] = {