David Gwilliam
2d28e92594
Reviewed-on: klubhaus/sideline#53 Co-authored-by: David Gwilliam <dhgwilliam@gmail.com> Co-committed-by: David Gwilliam <dhgwilliam@gmail.com>
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
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class CropEffect(EffectPlugin):
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"""Crop effect that crops the input buffer to fit the display.
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This ensures the output buffer matches the actual display dimensions,
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useful when the source produces a buffer larger than the viewport.
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"""
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name = "crop"
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config = EffectConfig(enabled=True, intensity=1.0)
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def process(self, buf: list[str], ctx: EffectContext) -> list[str]:
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if not buf:
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return buf
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# Get actual display dimensions from context
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w = (
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ctx.terminal_width
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if ctx.terminal_width > 0
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else max(len(line) for line in buf)
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)
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h = ctx.terminal_height if ctx.terminal_height > 0 else len(buf)
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# Crop buffer to fit
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result = []
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for i in range(min(h, len(buf))):
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line = buf[i]
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if len(line) > w:
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result.append(line[:w])
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else:
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result.append(line + " " * (w - len(line)))
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# Pad with empty lines if needed
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while len(result) < h:
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result.append(" " * w)
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return result
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def configure(self, config: EffectConfig) -> None:
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self.config = config
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