align should reset height

CHANGELOG.md

@@ -12,11 +12,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed issue with Syntax and missing lines in Layout https://github.com/willmcgugan/rich/issues/1050
 - Fixed issue with nested markdown elements https://github.com/willmcgugan/rich/issues/1036
 - Fixed new lines not invoking render hooks https://github.com/willmcgugan/rich/issues/1052
+- Fixed Align setting height to child https://github.com/willmcgugan/rich/issues/1057
 
 ### Changed
 
 - Printing a table with no columns now result in a blank line https://github.com/willmcgugan/rich/issues/1044
 
+### Added
+
+- Added height to Panel
+
 ## [9.11.1] - 2021-02-20
 
 ### Fixed

rich/align.py

@@ -138,7 +138,7 @@ class Align(JupyterMixin):
             Constrain(
                 self.renderable, width if self.width is None else min(width, self.width)
             ),
-            options,
+            options.update(height=None),
         )
         lines = list(Segment.split_lines(rendered))
         width, height = Segment.get_shape(lines)

rich/panel.py

@@ -30,6 +30,7 @@ class Panel(JupyterMixin):
         style (str, optional): The style of the panel (border and contents). Defaults to "none".
         border_style (str, optional): The style of the border. Defaults to "none".
         width (Optional[int], optional): Optional width of panel. Defaults to None to auto-detect.
+        height (Optional[int], optional): Optional height of panel. Defaults to None to auto-detect.
         padding (Optional[PaddingDimensions]): Optional padding around renderable. Defaults to 0.
         highlight (bool, optional): Enable automatic highlighting of panel title (if str). Defaults to False.
     """
@@ -46,6 +47,7 @@ class Panel(JupyterMixin):
         style: StyleType = "none",
         border_style: StyleType = "none",
         width: Optional[int] = None,
+        height: Optional[int] = None,
         padding: PaddingDimensions = (0, 1),
         highlight: bool = False,
     ) -> None:
@@ -58,6 +60,7 @@ class Panel(JupyterMixin):
         self.style = style
         self.border_style = border_style
         self.width = width
+        self.height = height
         self.padding = padding
         self.highlight = highlight
 
@@ -132,7 +135,9 @@ class Panel(JupyterMixin):
             if self.expand
             else Measurement.get(console, renderable, width - 2).maximum
         )
-        child_height = None if options.height is None else options.height - 2
+        child_height = self.height or options.height or None
+        if child_height:
+            child_height -= 2
         if title_text is not None:
             child_width = min(
                 options.max_width - 2, max(child_width, title_text.cell_len + 2)