Rule

A rule widget to separate content, similar to a <hr> HTML tag.

• Focusable
• Container

Examples

Horizontal Rule

The default orientation of a rule is horizontal.

The example below shows horizontal rules with all the available line styles.

Outputhorizontal_rules.pyhorizontal_rules.tcss

from textual.app import App, ComposeResult
from textual.containers import Vertical
from textual.widgets import Label, Rule


class HorizontalRulesApp(App):
    CSS_PATH = "horizontal_rules.tcss"

    def compose(self) -> ComposeResult:
        with Vertical():
            yield Label("solid (default)")
            yield Rule()
            yield Label("heavy")
            yield Rule(line_style="heavy")
            yield Label("thick")
            yield Rule(line_style="thick")
            yield Label("dashed")
            yield Rule(line_style="dashed")
            yield Label("double")
            yield Rule(line_style="double")
            yield Label("ascii")
            yield Rule(line_style="ascii")


if __name__ == "__main__":
    app = HorizontalRulesApp()
    app.run()

Screen {
    align: center middle;
}

Vertical {
    height: auto;
    width: 80%;
}

Label {
    width: 100%;
    text-align: center;
}

Vertical Rule

The example below shows vertical rules with all the available line styles.

Outputvertical_rules.pyvertical_rules.tcss

from textual.app import App, ComposeResult
from textual.containers import Horizontal
from textual.widgets import Label, Rule


class VerticalRulesApp(App):
    CSS_PATH = "vertical_rules.tcss"

    def compose(self) -> ComposeResult:
        with Horizontal():
            yield Label("solid")
            yield Rule(orientation="vertical")
            yield Label("heavy")
            yield Rule(orientation="vertical", line_style="heavy")
            yield Label("thick")
            yield Rule(orientation="vertical", line_style="thick")
            yield Label("dashed")
            yield Rule(orientation="vertical", line_style="dashed")
            yield Label("double")
            yield Rule(orientation="vertical", line_style="double")
            yield Label("ascii")
            yield Rule(orientation="vertical", line_style="ascii")


if __name__ == "__main__":
    app = VerticalRulesApp()
    app.run()

Screen {
    align: center middle;
}

Horizontal {
    width: auto;
    height: 80%;
}

Label {
    width: 6;
    height: 100%;
    text-align: center;
}

Reactive Attributes

Name	Type	Default	Description
orientation	RuleOrientation	"horizontal"	The orientation of the rule.
line_style	LineStyle	"solid"	The line style of the rule.

Messages

This widget sends no messages.

Bindings

This widget has no bindings.

Component Classes

This widget has no component classes.

---

textual.widgets.Rule class

def __init__(
    self,
    orientation="horizontal",
    line_style="solid",
    *,
    name=None,
    id=None,
    classes=None,
    disabled=False
):

Bases: Widget

A rule widget to separate content, similar to a <hr> HTML tag.

Parameters

Parameter	Default	Description
orientation RuleOrientation	'horizontal'	The orientation of the rule.
line_style LineStyle	'solid'	The line style of the rule.
name str | None	None	The name of the widget.
id str | None	None	The ID of the widget in the DOM.
classes str | None	None	The CSS classes of the widget.
disabled bool	False	Whether the widget is disabled or not.

line_style instance-attribute class-attribute

line_style: Reactive[LineStyle] = line_style

The line style of the rule.

orientation instance-attribute class-attribute

orientation: Reactive[RuleOrientation] = orientation

The orientation of the rule.

horizontal classmethod

def horizontal(
    cls,
    line_style="solid",
    name=None,
    id=None,
    classes=None,
    disabled=False,
):

Utility constructor for creating a horizontal rule.

Parameters

Parameter	Default	Description
line_style LineStyle	'solid'	The line style of the rule.
name str | None	None	The name of the widget.
id str | None	None	The ID of the widget in the DOM.
classes str | None	None	The CSS classes of the widget.
disabled bool	False	Whether the widget is disabled or not.

Returns

Type	Description
Rule	A rule widget with horizontal orientation.

vertical classmethod

def vertical(
    cls,
    line_style="solid",
    name=None,
    id=None,
    classes=None,
    disabled=False,
):

Utility constructor for creating a vertical rule.

Parameters

Parameter	Default	Description
line_style LineStyle	'solid'	The line style of the rule.
name str | None	None	The name of the widget.
id str | None	None	The ID of the widget in the DOM.
classes str | None	None	The CSS classes of the widget.
disabled bool	False	Whether the widget is disabled or not.

Returns

Type	Description
Rule	A rule widget with vertical orientation.

textual.widgets.rule

LineStyle module-attribute

LineStyle = Literal[
    "ascii",
    "blank",
    "dashed",
    "double",
    "heavy",
    "hidden",
    "none",
    "solid",
    "thick",
]

The valid line styles of the rule widget.

RuleOrientation module-attribute

RuleOrientation = Literal['horizontal', 'vertical']

The valid orientations of the rule widget.

InvalidLineStyle class

Bases: Exception

Exception raised for an invalid rule line style.

InvalidRuleOrientation class

Bases: Exception

Exception raised for an invalid rule orientation.