| from __future__ import annotations | |
| from rich.console import ConsoleOptions, Console, RenderResult | |
| from rich.segment import Segment | |
| from rich.style import Style | |
| from ..color import Color | |
| class VerticalGradient: | |
| """Draw a vertical gradient.""" | |
| def __init__(self, color1: str, color2: str) -> None: | |
| self._color1 = Color.parse(color1) | |
| self._color2 = Color.parse(color2) | |
| def __rich_console__( | |
| self, console: Console, options: ConsoleOptions | |
| ) -> RenderResult: | |
| width = options.max_width | |
| height = options.height or options.max_height | |
| color1 = self._color1 | |
| color2 = self._color2 | |
| default_color = Color(0, 0, 0).rich_color | |
| from_color = Style.from_color | |
| blend = color1.blend | |
| rich_color1 = color1.rich_color | |
| for y in range(height): | |
| line_color = from_color( | |
| default_color, | |
| ( | |
| blend(color2, y / (height - 1)).rich_color | |
| if height > 1 | |
| else rich_color1 | |
| ), | |
| ) | |
| yield Segment(f"{width * ' '}\n", line_color) | |
| if __name__ == "__main__": | |
| from rich import print | |
| print(VerticalGradient("red", "blue")) | |