merge
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Rui Carmo
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Screen {
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overflow: auto;
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}
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#calculator {
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layout: grid;
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grid-size: 4;
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grid-gutter: 1 2;
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grid-columns: 1fr;
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grid-rows: 2fr 1fr 1fr 1fr 1fr 1fr;
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margin: 1 2;
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min-height: 25;
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min-width: 26;
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height: 100%;
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}
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Button {
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width: 100%;
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height: 100%;
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}
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#numbers {
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column-span: 4;
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content-align: right middle;
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padding: 0 1;
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height: 100%;
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background: $primary-lighten-2;
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color: $text;
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}
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#number-0 {
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column-span: 2;
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}
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@@ -0,0 +1,145 @@
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from contextlib import suppress
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from decimal import Decimal
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from typing import ClassVar
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from textual import events
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from textual.app import App, ComposeResult
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from textual.containers import Container
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from textual.css.query import NoMatches
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from textual.reactive import var
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from textual.widgets import Button, Static
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class CalculatorApp(App):
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"""A working 'desktop' calculator."""
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CSS_PATH = "calculator.css"
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numbers = var("0")
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show_ac = var(True)
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left = var(Decimal("0"))
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right = var(Decimal("0"))
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value = var("")
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operator = var("plus")
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NAME_MAP: ClassVar = {
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"asterisk": "multiply",
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"slash": "divide",
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"underscore": "plus-minus",
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"full_stop": "point",
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"plus_minus_sign": "plus-minus",
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"percent_sign": "percent",
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"equals_sign": "equals",
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"minus": "minus",
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"plus": "plus",
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}
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def watch_numbers(self, value: str) -> None:
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"""Called when numbers is updated."""
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# Update the Numbers widget
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self.query_one("#numbers", Static).update(value)
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def compute_show_ac(self) -> bool:
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"""Compute switch to show AC or C button"""
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return self.value in ("", "0") and self.numbers == "0"
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def watch_show_ac(self, show_ac: bool) -> None:
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"""Called when show_ac changes."""
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self.query_one("#c").display = not show_ac
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self.query_one("#ac").display = show_ac
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def compose(self) -> ComposeResult:
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"""Add our buttons."""
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with Container(id="calculator"):
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yield Static(id="numbers")
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yield Button("AC", id="ac", variant="primary")
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yield Button("C", id="c", variant="primary")
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yield Button("+/-", id="plus-minus", variant="primary")
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yield Button("%", id="percent", variant="primary")
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yield Button("÷", id="divide", variant="warning")
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yield Button("7", id="number-7")
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yield Button("8", id="number-8")
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yield Button("9", id="number-9")
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yield Button("x", id="multiply", variant="warning")
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yield Button("4", id="number-4")
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yield Button("5", id="number-5")
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yield Button("6", id="number-6")
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yield Button("-", id="minus", variant="warning")
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yield Button("1", id="number-1")
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yield Button("2", id="number-2")
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yield Button("3", id="number-3")
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yield Button("+", id="plus", variant="warning")
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yield Button("0", id="number-0")
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yield Button(".", id="point")
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yield Button("=", id="equals", variant="warning")
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def on_key(self, event: events.Key) -> None:
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"""Called when the user presses a key."""
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def press(button_id: str) -> None:
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with suppress(NoMatches):
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self.query_one(f"#{button_id}", Button).press()
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key = event.key
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if key.isdecimal():
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press(f"number-{key}")
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elif key == "c":
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press("c")
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press("ac")
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else:
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button_id = self.NAME_MAP.get(key)
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if button_id is not None:
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press(self.NAME_MAP.get(key, key))
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def on_button_pressed(self, event: Button.Pressed) -> None:
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"""Called when a button is pressed."""
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button_id = event.button.id
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assert button_id is not None
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def do_math() -> None:
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"""Does the math: LEFT OPERATOR RIGHT"""
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try:
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if self.operator == "plus":
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self.left += self.right
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elif self.operator == "minus":
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self.left -= self.right
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elif self.operator == "divide":
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self.left /= self.right
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elif self.operator == "multiply":
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self.left *= self.right
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self.numbers = str(self.left)
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self.value = ""
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except Exception:
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self.numbers = "Error"
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if button_id.startswith("number-"):
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number = button_id.partition("-")[-1]
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self.numbers = self.value = self.value.lstrip("0") + number
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elif button_id == "plus-minus":
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self.numbers = self.value = str(Decimal(self.value or "0") * -1)
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elif button_id == "percent":
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self.numbers = self.value = str(Decimal(self.value or "0") / Decimal(100))
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elif button_id == "point":
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if "." not in self.value:
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self.numbers = self.value = (self.value or "0") + "."
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elif button_id == "ac":
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self.value = ""
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self.left = self.right = Decimal(0)
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self.operator = "plus"
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self.numbers = "0"
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elif button_id == "c":
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self.value = ""
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self.numbers = "0"
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elif button_id in ("plus", "minus", "divide", "multiply"):
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self.right = Decimal(self.value or "0")
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do_math()
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self.operator = button_id
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elif button_id == "equals":
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if self.value:
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self.right = Decimal(self.value)
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do_math()
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if __name__ == "__main__":
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CalculatorApp().run()
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@@ -0,0 +1,74 @@
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import io
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from pathlib import Path
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from textual import on
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from textual.app import App, ComposeResult
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from textual.events import DeliveryComplete
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from textual.widgets import Button, Input, Label
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class ScreenshotApp(App[None]):
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def compose(self) -> ComposeResult:
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yield Button("screenshot: no filename or mime", id="button-1")
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yield Button("screenshot: screenshot.svg / open in browser", id="button-2")
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yield Button("screenshot: screenshot.svg / download", id="button-3")
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yield Button(
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"screenshot: screenshot.svg / open in browser / plaintext mime",
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id="button-4",
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)
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yield Label("Deliver custom file:")
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yield Input(id="custom-path-input", placeholder="Path to file...")
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@on(Button.Pressed, selector="#button-1")
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def on_button_pressed(self) -> None:
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screenshot_string = self.export_screenshot()
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string_io = io.StringIO(screenshot_string)
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self.deliver_text(string_io)
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@on(Button.Pressed, selector="#button-2")
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def on_button_pressed_2(self) -> None:
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screenshot_string = self.export_screenshot()
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string_io = io.StringIO(screenshot_string)
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self.deliver_text(
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string_io, save_filename="screenshot.svg", open_method="browser"
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)
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@on(Button.Pressed, selector="#button-3")
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def on_button_pressed_3(self) -> None:
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screenshot_string = self.export_screenshot()
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string_io = io.StringIO(screenshot_string)
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self.deliver_text(
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string_io, save_filename="screenshot.svg", open_method="download"
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)
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@on(Button.Pressed, selector="#button-4")
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def on_button_pressed_4(self) -> None:
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screenshot_string = self.export_screenshot()
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string_io = io.StringIO(screenshot_string)
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self.deliver_text(
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string_io,
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save_filename="screenshot.svg",
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open_method="browser",
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mime_type="text/plain",
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)
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@on(DeliveryComplete)
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def on_delivery_complete(self, event: DeliveryComplete) -> None:
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self.notify(title="Download complete", message=event.key)
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@on(Input.Submitted)
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def on_input_submitted(self, event: Input.Submitted) -> None:
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path = Path(event.value)
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if path.exists():
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self.deliver_binary(path)
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else:
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self.notify(
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title="Invalid path",
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message="The path does not exist.",
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severity="error",
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)
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app = ScreenshotApp()
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if __name__ == "__main__":
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app.run()
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@@ -0,0 +1,13 @@
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import os
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from textual.app import App, ComposeResult
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from textual.widgets import Pretty
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class TerminalEnv(App):
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def compose(self) -> ComposeResult:
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yield Pretty(dict(os.environ))
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if __name__ == "__main__":
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TerminalEnv().run()
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@@ -0,0 +1,47 @@
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[account]
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[app.Calculator]
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path = "./"
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command = "python calculator.py"
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[app.Easing]
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slug = "easing"
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path = "./"
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command = "textual easing"
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[app.Keys]
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slug = "keys"
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path = "./"
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command = "textual keys"
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[app.Borders]
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slug = "borders"
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path = "./"
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command = "textual borders"
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[app.Demo]
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name = "Demo"
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slug = "demo"
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path = "./"
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command = "python -m textual"
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[terminal.Terminal]
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name = "Terminal"
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path = "./"
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terminal = true
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[app.OpenLink]
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name = "Open Link"
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slug = "open-link"
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path = "./"
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command = "python open_link.py"
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[app.Download]
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name = "Download"
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slug = "download"
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path = "./"
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command = "python download.py"
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@@ -0,0 +1,24 @@
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from textual import on
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from textual.app import App, ComposeResult
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from textual.widgets import Button
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class OpenLink(App[None]):
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"""Demonstrates opening a URL in the same tab or a new tab."""
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def compose(self) -> ComposeResult:
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yield Button("Visit the Textual docs", id="open-link-same-tab")
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yield Button("Visit the Textual docs in a new tab", id="open-link-new-tab")
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@on(Button.Pressed)
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def open_link(self, event: Button.Pressed) -> None:
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"""Open the URL in the same tab or a new tab depending on which button was pressed."""
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self.open_url(
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"https://textual.textualize.io",
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new_tab=event.button.id == "open-link-new-tab",
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)
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app = OpenLink()
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if __name__ == "__main__":
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app.run()
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