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deck_in_a_dash/android/scripts/gen_card_images.py
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Add a standalone Android app with the same daily reading and config page
android/ links engine/src/ and interpreter/src/ via JNI/CMake (real
astronomy.c, not the watch's size-constrained substitute), rendering
through Jetpack Compose with a burger-menu config page mirroring
WatchConfig and a WorkManager-driven daily notification. Independent
of the watch app - neither requires the other.

build-image now bundles the Android SDK/NDK alongside the Pebble SDK
(VERSION bumped to 2), and .gitea/workflows/build.yml/Makefile/
run-image.sh build and publish the APK the same way as the CLI
tarball and .pbw.
2026-07-18 22:41:51 +02:00

83 lines
3.3 KiB
Python

#!/usr/bin/env python3
"""Downsizes ../../res/img/*.jpeg into app/src/main/res/drawable-nodpi/*.webp
for the Android app.
Structurally a sibling of ../../watch/scripts/gen_card_images.py (same
CARDS slug/filename table - matching engine/src/tarot_data.c's own
k_card_slug, so app/src/main/res/drawable-nodpi/<slug>.webp resolves via
plain resource-name lookup, see app/src/main/java/.../ui/CardArt.kt -
and the same per-file mtime skip-if-up-to-date logic), but sized and
encoded for a phone screen instead of Pebble's hardware-forced 72px PNG:
400px wide, lossy WebP (quality 85) - these are painted illustrations,
not line art, so WebP meaningfully beats PNG here, and 21MB of source
JPEGs would otherwise bloat the APK.
Generated output, not committed (see the repo's root .gitignore's
/android/app/src/main/res/drawable-nodpi entry) - regenerate by running
this script directly or via Gradle's generateCardArt task (wired into
app's preBuild, see ../app/build.gradle.kts). Requires Pillow (`pip
install Pillow`), already part of build-image's toolchain.
"""
import os
import sys
from PIL import Image
SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
SRC_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, "..", "..", "res", "img"))
OUT_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, "..", "app", "src", "main", "res", "drawable-nodpi"))
CARD_WIDTH = 400
WEBP_QUALITY = 85
# (source file in res/img/, slug matching engine/src/tarot_data.c's
# k_card_slug table) - in TarotCard enum order (CARD_FOOL = 0 ... CARD_WORLD).
CARDS = [
("RWS_Tarot_00_Fool.jpeg", "fool"),
("RWS_Tarot_01_Magician.jpeg", "magician"),
("RWS_Tarot_02_High_Priestess.jpeg", "high_priestess"),
("RWS_Tarot_03_Empress.jpeg", "empress"),
("RWS_Tarot_04_Emperor.jpeg", "emperor"),
("RWS_Tarot_05_Hierophant.jpeg", "hierophant"),
("RWS_Tarot_06_Lovers.jpeg", "lovers"),
("RWS_Tarot_07_Chariot.jpeg", "chariot"),
("RWS_Tarot_08_Strength.jpeg", "strength"),
("RWS_Tarot_09_Hermit.jpeg", "hermit"),
("RWS_Tarot_10_Wheel_of_Fortune.jpeg", "wheel_of_fortune"),
("RWS_Tarot_11_Justice.jpeg", "justice"),
("RWS_Tarot_12_Hanged_Man.jpeg", "hanged_man"),
("RWS_Tarot_13_Death.jpeg", "death"),
("RWS_Tarot_14_Temperance.jpeg", "temperance"),
("RWS_Tarot_15_Devil.jpeg", "devil"),
("RWS_Tarot_16_Tower.jpeg", "tower"),
("RWS_Tarot_17_Star.jpeg", "star"),
("RWS_Tarot_18_Moon.jpeg", "moon"),
("RWS_Tarot_19_Sun.jpeg", "sun"),
("RWS_Tarot_20_Judgement.jpeg", "judgement"),
("RWS_Tarot_21_World.jpeg", "world"),
]
def main():
os.makedirs(OUT_DIR, exist_ok=True)
written = 0
for src_name, slug in CARDS:
src_path = os.path.join(SRC_DIR, src_name)
out_path = os.path.join(OUT_DIR, f"{slug}.webp")
if os.path.exists(out_path) and os.path.getmtime(out_path) >= os.path.getmtime(src_path):
continue
with Image.open(src_path) as img:
ratio = CARD_WIDTH / img.width
height = round(img.height * ratio)
resized = img.convert("RGB").resize((CARD_WIDTH, height), Image.LANCZOS)
resized.save(out_path, "WEBP", quality=WEBP_QUALITY)
written += 1
print(f"wrote {written}/{len(CARDS)} card images to {OUT_DIR}", file=sys.stderr)
if __name__ == "__main__":
main()