snapshots

Author: willmcgugan

CHANGELOG.md

@@ -9,7 +9,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Changed
 
-- Optimized startup
+- Optimized startup https://github.com/Textualize/textual/pull/5869
+- New blank visual which makes background faster to render (note this will break snapshots tests this version) https://github.com/Textualize/textual/pull/5869
 
 ## [3.4.0] - 2025-06-14
 

poetry.lock

@@ -1,27 +1,39 @@
 from __future__ import annotations
 
-from rich.console import Console, ConsoleOptions, RenderResult
-from rich.segment import Segment
-from rich.style import Style
+from rich.style import Style as RichStyle
 
 from textual.color import Color
+from textual.content import Style
+from textual.css.styles import RulesMap
+from textual.selection import Selection
+from textual.strip import Strip
+from textual.visual import Visual
 
 
-class Blank:
+class Blank(Visual):
     """Draw solid background color."""
 
     def __init__(self, color: Color | str = "transparent") -> None:
-        background = Color.parse(color)
-        self._style = Style.from_color(bgcolor=background.rich_color)
-
-    def __rich_console__(
-        self, console: Console, options: ConsoleOptions
-    ) -> RenderResult:
-        width = options.max_width
-        height = options.height or options.max_height
-
-        segment = Segment(" " * width, self._style)
-        line = Segment.line()
-        for _ in range(height):
-            yield segment
-            yield line
+        self._rich_style = RichStyle.from_color(bgcolor=Color.parse(color).rich_color)
+
+    def visualize(self) -> Blank:
+        return self
+
+    def get_optimal_width(self, rules: RulesMap, container_width: int) -> int:
+        return container_width
+
+    def get_height(self, rules: RulesMap, width: int) -> int:
+        return 1
+
+    def render_strips(
+        self,
+        rules: RulesMap,
+        width: int,
+        height: int | None,
+        style: Style,
+        selection: Selection | None = None,
+        selection_style: Style | None = None,
+        post_style: Style | None = None,
+    ) -> list[Strip]:
+        line_count = 1 if height is None else height
+        return [Strip.blank(width, self._rich_style)] * line_count