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#!/usr/bin/env python3
"""A simple example of setting a custom theme for a cmd2 application."""
from rich.style import Style
import cmd2
import cmd2.rich_utils as ru
from cmd2 import Cmd2Style, Color
class ThemedApp(cmd2.Cmd):
"""A simple cmd2 application with a custom theme."""
def __init__(self, *args, **kwargs):
"""Initialize the application."""
super().__init__(*args, **kwargs)
self.intro = "This is a themed application. Try the 'theme_show' command."
# Set text which prints right before all of the help tables are listed.
self.doc_leader = "Welcome to this glorious help ..."
# Create a custom theme
# Colors can come from the cmd2.color.Color StrEnum class, be RGB hex values, or
# be any of the rich standard colors: https://rich.readthedocs.io/en/stable/appendix/colors.html
custom_theme = {
Cmd2Style.SUCCESS: Style(color=Color.GREEN1, bgcolor=Color.GRAY30), # Use color from cmd2 Color class
Cmd2Style.WARNING: Style(color=Color.ORANGE1),
Cmd2Style.ERROR: Style(color=Color.PINK1),
Cmd2Style.HELP_HEADER: Style(color=Color.CYAN, bgcolor="#44475a"),
Cmd2Style.HELP_LEADER: Style(color="#f8f8f2", bgcolor="#282a36"), # use RGB hex colors
Cmd2Style.TABLE_BORDER: Style(color="turquoise2"), # use a rich standard color
"traceback.exc_type": Style(color=Color.RED, bgcolor=Color.LIGHT_YELLOW3, bold=True),
"argparse.args": Style(color=Color.AQUAMARINE3, underline=True),
}
ru.set_theme(custom_theme)
@cmd2.with_category("Theme Commands")
def do_theme_show(self, _: cmd2.Statement):
"""Showcases the custom theme by printing messages with different styles."""
self.poutput("This is a basic output message.")
self.psuccess("This is a success message.")
self.pwarning("This is a warning message.")
self.perror("This is an error message.")
self.pexcept(ValueError("This is a dummy ValueError exception."))
if __name__ == "__main__":
import sys
app = ThemedApp()
sys.exit(app.cmdloop())
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