From e8fa75d25f51f62b552072a12a18d2074d079f95 Mon Sep 17 00:00:00 2001
From: Will Toohey <will@mon.im>
Date: Sat, 11 May 2024 22:09:29 +1000
Subject: [PATCH 1/2] Allow more easily customisable scrollbar glyphs

---
 src/textual/scrollbar.py | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/textual/scrollbar.py b/src/textual/scrollbar.py
index 2700419192..38eaadb1f3 100644
--- a/src/textual/scrollbar.py
+++ b/src/textual/scrollbar.py
@@ -70,6 +70,13 @@ def __rich_repr__(self) -> rich.repr.Result:
 
 
 class ScrollBarRender:
+    _vertical_bars: ClassVar[list[str]] = ["▁", "▂", "▃", "▄", "▅", "▆", "▇", " "]
+    """Glyphs used for vertical scrollbar ends, for smoother display."""
+    _horizontal_bars: ClassVar[list[str]] = ["▉", "▊", "▋", "▌", "▍", "▎", "▏", " "]
+    """Glyphs used for horizontal scrollbar ends, for smoother display."""
+    _blank_glyph: ClassVar[str] = " "
+    """Glyph used for the main body of the scrollbar"""
+
     def __init__(
         self,
         virtual_size: int = 100,
@@ -99,9 +106,9 @@ def render_bar(
         bar_color: Color = Color.parse("bright_magenta"),
     ) -> Segments:
         if vertical:
-            bars = ["▁", "▂", "▃", "▄", "▅", "▆", "▇", " "]
+            bars = cls._vertical_bars
         else:
-            bars = ["▉", "▊", "▋", "▌", "▍", "▎", "▏", " "]
+            bars = cls._horizontal_bars
 
         back = back_color
         bar = bar_color
@@ -112,7 +119,7 @@ def render_bar(
 
         _Segment = Segment
         _Style = Style
-        blank = " " * width_thickness
+        blank = cls._blank_glyph * width_thickness
 
         foreground_meta = {"@mouse.down": "grab"}
         if window_size and size and virtual_size and size != virtual_size:

From 0ebbf05d13ddb220997ff38409aad1ce09f10124 Mon Sep 17 00:00:00 2001
From: Will Toohey <will@mon.im>
Date: Mon, 27 May 2024 08:25:46 +1000
Subject: [PATCH 2/2] ScrollBarRender: change class constants to
 SCREAMING_SNAKE_CASE

---
 src/textual/scrollbar.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/textual/scrollbar.py b/src/textual/scrollbar.py
index 38eaadb1f3..a105aa8370 100644
--- a/src/textual/scrollbar.py
+++ b/src/textual/scrollbar.py
@@ -70,11 +70,11 @@ def __rich_repr__(self) -> rich.repr.Result:
 
 
 class ScrollBarRender:
-    _vertical_bars: ClassVar[list[str]] = ["▁", "▂", "▃", "▄", "▅", "▆", "▇", " "]
+    VERTICAL_BARS: ClassVar[list[str]] = ["▁", "▂", "▃", "▄", "▅", "▆", "▇", " "]
     """Glyphs used for vertical scrollbar ends, for smoother display."""
-    _horizontal_bars: ClassVar[list[str]] = ["▉", "▊", "▋", "▌", "▍", "▎", "▏", " "]
+    HORIZONTAL_BARS: ClassVar[list[str]] = ["▉", "▊", "▋", "▌", "▍", "▎", "▏", " "]
     """Glyphs used for horizontal scrollbar ends, for smoother display."""
-    _blank_glyph: ClassVar[str] = " "
+    BLANK_GLYPH: ClassVar[str] = " "
     """Glyph used for the main body of the scrollbar"""
 
     def __init__(
@@ -106,9 +106,9 @@ def render_bar(
         bar_color: Color = Color.parse("bright_magenta"),
     ) -> Segments:
         if vertical:
-            bars = cls._vertical_bars
+            bars = cls.VERTICAL_BARS
         else:
-            bars = cls._horizontal_bars
+            bars = cls.HORIZONTAL_BARS
 
         back = back_color
         bar = bar_color
@@ -119,7 +119,7 @@ def render_bar(
 
         _Segment = Segment
         _Style = Style
-        blank = cls._blank_glyph * width_thickness
+        blank = cls.BLANK_GLYPH * width_thickness
 
         foreground_meta = {"@mouse.down": "grab"}
         if window_size and size and virtual_size and size != virtual_size: