examples/full-screen/simple-demos/horizontal-align.py


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#!/usr/bin/env python
"""
Horizontal align demo with HSplit.
"""
from prompt_toolkit.application import Application
from prompt_toolkit.formatted_text import HTML
from prompt_toolkit.key_binding import KeyBindings
from prompt_toolkit.layout.containers import (
    HorizontalAlign,
    HSplit,
    VerticalAlign,
    VSplit,
    Window,
    WindowAlign,
)
from prompt_toolkit.layout.controls import FormattedTextControl
from prompt_toolkit.layout.layout import Layout
from prompt_toolkit.widgets import Frame

TITLE = HTML(
    """ <u>HSplit HorizontalAlign</u> example.
 Press <b>'q'</b> to quit."""
)

LIPSUM = """\
Lorem ipsum dolor
sit amet, consectetur
adipiscing elit.
Maecenas quis
interdum enim."""


# 1. The layout
body = HSplit(
    [
        Frame(
            Window(FormattedTextControl(TITLE), height=2), style="bg:#88ff88 #000000"
        ),
        HSplit(
            [
                # Left alignment.
                VSplit(
                    [
                        Window(
                            FormattedTextControl(HTML("<u>LEFT</u>")),
                            width=10,
                            ignore_content_width=True,
                            style="bg:#ff3333 ansiblack",
                            align=WindowAlign.CENTER,
                        ),
                        VSplit(
                            [
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                            ],
                            padding=1,
                            padding_style="bg:#888888",
                            align=HorizontalAlign.LEFT,
                            height=5,
                            padding_char="|",
                        ),
                    ]
                ),
                # Center alignment.
                VSplit(
                    [
                        Window(
                            FormattedTextControl(HTML("<u>CENTER</u>")),
                            width=10,
                            ignore_content_width=True,
                            style="bg:#ff3333 ansiblack",
                            align=WindowAlign.CENTER,
                        ),
                        VSplit(
                            [
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                            ],
                            padding=1,
                            padding_style="bg:#888888",
                            align=HorizontalAlign.CENTER,
                            height=5,
                            padding_char="|",
                        ),
                    ]
                ),
                # Right alignment.
                VSplit(
                    [
                        Window(
                            FormattedTextControl(HTML("<u>RIGHT</u>")),
                            width=10,
                            ignore_content_width=True,
                            style="bg:#ff3333 ansiblack",
                            align=WindowAlign.CENTER,
                        ),
                        VSplit(
                            [
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM),
                                    height=4,
                                    style="bg:#444488",
                                ),
                            ],
                            padding=1,
                            padding_style="bg:#888888",
                            align=HorizontalAlign.RIGHT,
                            height=5,
                            padding_char="|",
                        ),
                    ]
                ),
                # Justify
                VSplit(
                    [
                        Window(
                            FormattedTextControl(HTML("<u>JUSTIFY</u>")),
                            width=10,
                            ignore_content_width=True,
                            style="bg:#ff3333 ansiblack",
                            align=WindowAlign.CENTER,
                        ),
                        VSplit(
                            [
                                Window(
                                    FormattedTextControl(LIPSUM), style="bg:#444488"
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM), style="bg:#444488"
                                ),
                                Window(
                                    FormattedTextControl(LIPSUM), style="bg:#444488"
                                ),
                            ],
                            padding=1,
                            padding_style="bg:#888888",
                            align=HorizontalAlign.JUSTIFY,
                            height=5,
                            padding_char="|",
                        ),
                    ]
                ),
            ],
            padding=1,
            padding_style="bg:#ff3333 #ffffff",
            padding_char=".",
            align=VerticalAlign.TOP,
        ),
    ]
)


# 2. Key bindings
kb = KeyBindings()


@kb.add("q")
def _(event):
    "Quit application."
    event.app.exit()


# 3. The `Application`
application = Application(layout=Layout(body), key_bindings=kb, full_screen=True)


def run():
    application.run()


if __name__ == "__main__":
    run()