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from rich.syntax import Syntax
from textual.app import App, ComposeResult, RenderResult
from textual.reactive import reactive
from textual.widget import Widget
class CodeView(Widget):
"""Widget to display Python code."""
DEFAULT_CSS = """
CodeView { height: auto; }
"""
code = reactive("")
def render(self) -> RenderResult:
# Syntax is a Rich renderable that displays syntax highlighted code
syntax = Syntax(self.code, "python", line_numbers=True, indent_guides=True)
return syntax
class CodeApp(App):
"""App to demonstrate Rich renderables in Textual."""
def compose(self) -> ComposeResult:
with open(__file__) as self_file:
code = self_file.read()
code_view = CodeView()
code_view.code = code
yield code_view
if __name__ == "__main__":
app = CodeApp()
app.run()
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