Files
sideline/engine/display/backends/multi.py
David Gwilliam 57de835ae0 feat: Implement scrolling camera with layout-aware filtering
- Rename VERTICAL camera mode to FEED (rapid single-item view)
- Add SCROLL camera mode with float accumulation for smooth movie-credits style scrolling
- Add estimate_block_height() for cheap layout calculation without full rendering
- Replace ViewportFilterStage with layout-aware filtering that tracks camera position
- Add render caching to FontStage to avoid re-rendering items
- Fix CameraStage to use global canvas height for scrolling bounds
- Add horizontal padding in Camera.apply() to prevent ghosting
- Add get_dimensions() to MultiDisplay for proper viewport sizing
- Fix PygameDisplay to auto-detect viewport from window size
- Update presets to use scroll camera with appropriate speeds
2026-03-17 00:21:18 -07:00

51 lines
1.4 KiB
Python

"""
Multi display backend - forwards to multiple displays.
"""
class MultiDisplay:
"""Display that forwards to multiple displays.
Supports reuse - passes reuse flag to all child displays.
"""
width: int = 80
height: int = 24
def __init__(self, displays: list):
self.displays = displays
self.width = 80
self.height = 24
def init(self, width: int, height: int, reuse: bool = False) -> None:
"""Initialize all child displays with dimensions.
Args:
width: Terminal width in characters
height: Terminal height in rows
reuse: If True, use reuse mode for child displays
"""
self.width = width
self.height = height
for d in self.displays:
d.init(width, height, reuse=reuse)
def show(self, buffer: list[str], border: bool = False) -> None:
for d in self.displays:
d.show(buffer, border=border)
def clear(self) -> None:
for d in self.displays:
d.clear()
def get_dimensions(self) -> tuple[int, int]:
"""Get dimensions from the first child display that supports it."""
for d in self.displays:
if hasattr(d, "get_dimensions"):
return d.get_dimensions()
return (self.width, self.height)
def cleanup(self) -> None:
for d in self.displays:
d.cleanup()