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espresso_frame/server/app/widgets/static_image.py
T
Thomas Faour 35e80c6d1c
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Add a static image widget (PNG/JPEG/GIF/BMP/WEBP/TIFF/PDF upload)
A new widget type showing a single user-uploaded image with no live
upstream to poll -- decoded once at upload time (PDF's first page via
pypdfium2, BSD-3-Clause/Apache-2.0, no copyleft exposure) into plain RGB
PNG bytes, then composed per a crop/stretch/letterbox display mode like
the photos widget.
2026-07-25 08:39:09 +00:00

36 lines
1.4 KiB
Python

"""Static image widget: shows whatever image the user last uploaded
(routers/api_widgets.py's api_widget_static_upload already decoded
PNG/JPEG/GIF/PDF/etc. into plain RGB PNG bytes at upload time, see
app/image_upload.py and models.StaticWidgetConfig) -- no live upstream
to fetch, so render() is just a decode + compose_into, the simplest of
every widget type's render().
No button actions -- there's nothing to advance/back/check for a fixed
uploaded image."""
from __future__ import annotations
import io
from PIL import Image
from sqlalchemy.orm import Session
from ..image_pipeline import compose_into
from ..models import Frame, StaticWidgetConfig, Widget
from ._shared import placeholder_image
ACTIONS: dict = {}
ACTION_LABELS: dict[str, str] = {}
def render(db: Session, frame: Frame, widget: Widget, target_w: int, target_h: int,
is_normal_wake: bool = True) -> Image.Image:
"""is_normal_wake is unused -- see app/widgets/whiteboard.py's
identical note; every widget type's render() shares one call
signature regardless of which ones actually care."""
cfg = db.get(StaticWidgetConfig, widget.id)
if not cfg.image:
return placeholder_image(target_w, target_h, ["Static image widget", "not configured yet"])
source = Image.open(io.BytesIO(cfg.image)).convert("RGB")
return compose_into(source, faces=None, target_w=target_w, target_h=target_h, display_mode=cfg.display_mode)