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6a3e9695db28a9c39c761deed91baf2dfd479f07
music_library/presto/main.py
T
Claudio Ortolina 6a3e9695db ML-184: add Presto smoke test harness 
Add a headless smoke-test harness for the Presto microPython app using
pimoroni-emulator mock modules.  A PRESTO_TEST_MODE=1 guard prevents
main() from running at import time so draw functions can be called
directly from tests.

- presto/main.py: wrap main() with PRESTO_TEST_MODE guard
- presto/tests/: conftest with emulator fixtures, 7 smoke tests
- presto/mise.toml: add [tasks.test]
- presto/README.md, presto/AGENTS.md: add Testing section
- .gitignore: exclude test __pycache__, pytest_cache, fixture pngs
2026-05-15 10:53:08 +01:00

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"""
Presto Music Library
===================================================
A MicroPython application for the Pimoroni Presto (RP2350B, 480x480 touch
display, WiFi) that connects to the Music Library API and lets you:
- browse records by release date
- search records in the collection
Features:
- WiFi auto-connect with retry
- NTP time synchronisation
- Full text search for collection records
- Month calendar view with day-of-week headers
- Tap a day to see records released on that date (cover art, artist, title)
- Navigate months with arrow buttons
- Error handling for network / API failures
Hardware: Pimoroni Presto running stock Presto firmware
(MicroPython + PicoGraphics + touch driver)
Setup:
1. Copy config.example.py to secrets.py and fill in your credentials
2. Copy main.py and secrets.py to the root of your Presto's flash
3. The app starts automatically on boot (main.py is the default entry point)
"""
# ============================================================================
# IMPORTS
# ============================================================================
import gc
import os
import time
import network
import ntptime
import urequests
# Presto hardware module (provided by stock firmware)
from presto import Presto
# JPEG decoder (provided by stock firmware; may be named jpegdec or picographics
# depending on firmware version — adjust import if needed)
try:
import jpegdec as _jpegdec_lib
_HAS_JPEGDEC = True
except ImportError:
_HAS_JPEGDEC = False
# ============================================================================
# CONFIGURATION
# ============================================================================
# API endpoint (production server)
API_BASE = "https://music-library.claudio-ortolina.org"
# Setup for the Presto display in full-resolution 480x480 mode.
presto = Presto(full_res=True)
display = presto.display
WIDTH, HEIGHT = display.get_bounds()
touch = presto.touch
UI_SCALE = 2
TEXT_SCALE = UI_SCALE
TITLE_TEXT_SCALE = UI_SCALE
PLACEHOLDER_TEXT_SCALE = UI_SCALE * 2
def px(value):
"""Scale a low-resolution layout measurement to full-resolution pixels."""
return value * UI_SCALE
TEXT_H = px(8)
TEXT_LINE_H = px(12)
TITLE_LINE_H = px(14)
# Calendar layout (computed from display bounds)
CELL_GAP = px(3)
CELLS_PER_ROW = 7
MAX_ROWS = 6
# Header
HEADER_Y = 0
HEADER_H = px(31)
HEADER_TEXT_H = px(14)
HEADER_SIDE_MARGIN = px(8)
HEADER_BUTTON_W = px(32)
HEADER_BUTTON_H = px(25)
HEADER_BUTTON_Y = HEADER_Y + (HEADER_H - HEADER_BUTTON_H) // 2
ARROW_W = HEADER_BUTTON_W
ARROW_H = HEADER_BUTTON_H
# Day-of-week labels
DOW_Y = HEADER_Y + HEADER_H + px(2)
DOW_H = px(16)
# Grid starts after day-of-week labels with a small gap
CALENDAR_TOP = DOW_Y + DOW_H + px(6)
# Day cells: fit 7 across with comfortable side margins
CELL_SIZE_BY_WIDTH = (WIDTH - px(16) - (CELLS_PER_ROW - 1) * CELL_GAP) // CELLS_PER_ROW
CELL_SIZE_BY_HEIGHT = (
HEIGHT - CALENDAR_TOP - px(8) - (MAX_ROWS - 1) * CELL_GAP
) // MAX_ROWS
CELL_SIZE = min(CELL_SIZE_BY_WIDTH, CELL_SIZE_BY_HEIGHT, px(78))
GRID_LEFT = (WIDTH - (CELLS_PER_ROW * CELL_SIZE + (CELLS_PER_ROW - 1) * CELL_GAP)) // 2
# Day view (proportional to cell size)
BACK_X = HEADER_SIDE_MARGIN
BACK_Y = HEADER_BUTTON_Y
BACK_W = HEADER_BUTTON_W
BACK_H = HEADER_BUTTON_H
DAY_HEADER_Y = HEADER_Y
DAY_HEADER_H = HEADER_H
DAY_HEADER_TEXT_H = HEADER_TEXT_H
DAY_COUNT_TEXT_H = TEXT_H
# Detail view
DETAIL_COVER_SIZE = px(150)
DETAIL_COVER_X = (WIDTH - DETAIL_COVER_SIZE) // 2
DETAIL_COVER_Y = DAY_HEADER_Y + DAY_HEADER_H + px(12)
DETAIL_INFO_GAP = px(4)
DETAIL_TEXT_X = px(40)
DETAIL_TEXT_W = WIDTH - (2 * DETAIL_TEXT_X)
# Scrobble button (detail view)
SCROBBLE_BUTTON_W = px(200)
SCROBBLE_BUTTON_H = px(40)
SCROBBLE_BUTTON_GAP = px(12) # vertical gap before button
RECORD_START_Y = DAY_HEADER_Y + DAY_HEADER_H + px(8)
THUMB_SIZE = px(40)
THUMB_MARGIN = px(8)
ROW_PAD_Y = px(8)
ROW_SEPARATOR_H = px(1)
TEXT_X = THUMB_MARGIN + THUMB_SIZE + px(12)
TEXT_W = WIDTH - TEXT_X - px(12)
# Colors (RGB tuples, converted to pens at runtime)
BG = (24, 24, 27)
CELL_BG = (39, 39, 42)
CELL_OTHER_MONTH = (30, 30, 34)
TODAY_BG = (239, 68, 68)
TODAY_TEXT = (255, 255, 255)
NORMAL_TEXT = (212, 212, 216)
DIM_TEXT = (113, 113, 122)
HEADER_TEXT = (228, 228, 231)
ARROW_COLOR = (161, 161, 170)
BACK_COLOR = (212, 212, 216)
TITLE_COLOR = (228, 228, 231)
ARTIST_COLOR = (161, 161, 170)
ERROR_COLOR = (59, 130, 246)
PLACEHOLDER_BG = (63, 63, 70)
STATUS_TEXT = (161, 161, 170)
# Scrobble button colors
SCROBBLE_BG = (55, 65, 81) # Same slate as HOME_BTN_BG
SCROBBLE_TEXT = (228, 228, 231) # Same as TITLE_COLOR
SCROBBLE_DONE_BG = (34, 197, 94) # Green success
SCROBBLE_DONE_TEXT = (255, 255, 255)
# Days of week (Monday first, ISO 8601)
DAY_NAMES = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
MONTH_NAMES = [
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December",
]
# Touch debounce (milliseconds)
DEBOUNCE_MS = 300
DRAG_REDRAW_MS = 40
DRAG_REDRAW_PX = px(8)
TOUCH_RELEASE_TIMEOUT_MS = 3_000
# WiFi connection timeout (seconds)
WIFI_TIMEOUT = 30
# Display sleep
DISPLAY_SLEEP_MS = 60_000
DISPLAY_BRIGHTNESS = 1.0
DISPLAY_SLEEP_BRIGHTNESS = 0.0
DISPLAY_FADE_MS = 500
DISPLAY_FADE_STEPS = 20
# Home screen
HOME_TITLE = "Music Library"
HOME_TITLE_Y = px(60)
HOME_BUTTON_W = WIDTH - px(80)
HOME_BUTTON_H = px(50)
HOME_BUTTON_X = px(40)
HOME_BUTTON1_Y = px(120)
HOME_BUTTON2_Y = HOME_BUTTON1_Y + HOME_BUTTON_H + px(10)
HOME_BTN_BG = (55, 65, 81) # Slate blue — distinct from BG and CELL_BG
# On-screen keyboard
KB_MARGIN = px(20)
KB_KEY_GAP = px(3)
KB_KEY_H = px(36)
KB_KEY_W = (WIDTH - 2 * KB_MARGIN - 9 * KB_KEY_GAP) // 10
KB_INPUT_Y = px(42)
KB_INPUT_H = px(28)
KB_INPUT_MARGIN = px(40)
KB_ROWS_START_Y = KB_INPUT_Y + KB_INPUT_H + px(12)
ALPHA_KEYS = [
list("qwertyuiop"),
list("asdfghjkl"),
list("zxcvbnm"),
]
NUM_KEYS = [
list("1234567890"),
list("-/:;()!@#$"),
]
# ============================================================================
# STATE
# ============================================================================
# View state constants
STATE_MONTH = 0
STATE_DAY = 1
STATE_RECORD = 2
STATE_HOME = 3
STATE_SEARCH_INPUT = 4
STATE_SEARCH_RESULTS = 5
class DayListState:
"""Mutable state for the day records list."""
def __init__(self):
self.selected_day = 0
self.records = []
self.error = False
self.scroll_offset = 0
self.content_height = 0
class SearchState:
"""Mutable state for search input and search results."""
def __init__(self):
self.query = ""
self.results = []
self.error = False
self.scroll_offset = 0
self.content_height = 0
self.keyboard_mode = "alpha"
class DetailState:
"""Mutable state for the record detail view."""
def __init__(self):
self.selected_index = None
self.source_screen = None
self.scroll_offset = 0
self.content_height = 0
self.scrobble_state = "idle"
class TouchState:
"""Mutable state for touch debounce, drag, and display sleep."""
def __init__(self):
self.last_touch = 0
self.last_drag_redraw = 0
self.dragging = False
self.last_activity = 0
self.display_awake = True
class AppState:
"""Top-level mutable application state."""
def __init__(self):
self.api_token = ""
self.screen = STATE_HOME
self.today_year = 2026
self.today_month = 5
self.today_day = 1
self.view_year = 2026
self.view_month = 5
self.day = DayListState()
self.search = SearchState()
self.detail = DetailState()
self.touch = TouchState()
# ============================================================================
# HELPER: PEN CREATION
# ============================================================================
# We create pens once and reuse them to reduce GC pressure.
# Stored as module-level variables, initialised in init_display().
_pen_bg = None
_pen_cell_bg = None
_pen_cell_other = None
_pen_today_bg = None
_pen_today_text = None
_pen_normal_text = None
_pen_dim_text = None
_pen_header_text = None
_pen_arrow = None
_pen_back = None
_pen_title = None
_pen_artist = None
_pen_error = None
_pen_placeholder = None
_pen_status = None
_pen_home_btn = None
# Scrobble button pens
_pen_scrobble_bg = None
_pen_scrobble_text = None
_pen_scrobble_done_bg = None
_pen_scrobble_done_text = None
def _init_pens():
"""Pre-create all pens from the RGB color constants."""
global _pen_bg, _pen_cell_bg, _pen_cell_other, _pen_today_bg
global _pen_today_text, _pen_normal_text, _pen_dim_text, _pen_header_text
global _pen_arrow, _pen_back, _pen_title, _pen_artist, _pen_error
global _pen_placeholder, _pen_status, _pen_home_btn
_pen_bg = display.create_pen(*BG)
_pen_cell_bg = display.create_pen(*CELL_BG)
_pen_cell_other = display.create_pen(*CELL_OTHER_MONTH)
_pen_today_bg = display.create_pen(*TODAY_BG)
_pen_today_text = display.create_pen(*TODAY_TEXT)
_pen_normal_text = display.create_pen(*NORMAL_TEXT)
_pen_dim_text = display.create_pen(*DIM_TEXT)
_pen_header_text = display.create_pen(*HEADER_TEXT)
_pen_arrow = display.create_pen(*ARROW_COLOR)
_pen_back = display.create_pen(*BACK_COLOR)
_pen_title = display.create_pen(*TITLE_COLOR)
_pen_artist = display.create_pen(*ARTIST_COLOR)
_pen_error = display.create_pen(*ERROR_COLOR)
_pen_placeholder = display.create_pen(*PLACEHOLDER_BG)
_pen_status = display.create_pen(*STATUS_TEXT)
_pen_home_btn = display.create_pen(*HOME_BTN_BG)
# Scrobble button
global _pen_scrobble_bg, _pen_scrobble_text
global _pen_scrobble_done_bg, _pen_scrobble_done_text
_pen_scrobble_bg = display.create_pen(*SCROBBLE_BG)
_pen_scrobble_text = display.create_pen(*SCROBBLE_TEXT)
_pen_scrobble_done_bg = display.create_pen(*SCROBBLE_DONE_BG)
_pen_scrobble_done_text = display.create_pen(*SCROBBLE_DONE_TEXT)
# ============================================================================
# HELPER: TEXT WRAPPING
# ============================================================================
def draw_wrapped(text, x, y, max_width, pen, scale=TEXT_SCALE):
"""Draw text, wrapping at word boundaries to fit within max_width pixels.
PicoGraphics doesn't support automatic wrapping, so we manually break
long strings. Returns the Y position after the last line drawn.
"""
lines = _wrapped_lines(text, max_width, scale=scale)
line_height = _text_line_height(scale)
cy = y
display.set_pen(pen)
for line in lines:
display.text(line, x, cy, scale=scale)
cy += line_height
return cy
def draw_wrapped_lines(lines, x, y, pen, scale=TEXT_SCALE):
"""Draw pre-wrapped text lines and return the Y position after them."""
line_height = _text_line_height(scale)
cy = y
display.set_pen(pen)
for line in lines:
display.text(line, x, cy, scale=scale)
cy += line_height
return cy
def _text_line_height(scale=TEXT_SCALE):
"""Return a bitmap8 line height including scaled inter-line spacing."""
return 8 * scale + px(4)
def display_text(text):
"""Replace characters not available in the bitmap font."""
replacements = (
("–", "-"),
("—", "-"),
("−", "-"),
("‐", "-"),
("‑", "-"),
("‒", "-"),
("“", '"'),
("”", '"'),
("„", '"'),
("«", '"'),
("»", '"'),
("‘", "'"),
("’", "'"),
("‚", "'"),
("′", "'"),
("…", "..."),
("•", "*"),
("·", "-"),
("\u00a0", " "),
("\u202f", " "),
("\u2009", " "),
("\u200a", " "),
("\u200b", ""),
)
rendered = str(text)
for original, replacement in replacements:
rendered = rendered.replace(original, replacement)
return rendered
def _wrapped_line_count(text, max_width, scale=TEXT_SCALE):
"""Return how many wrapped lines the text will occupy."""
return max(1, len(_wrapped_lines(text, max_width, scale=scale)))
def _wrapped_lines(text, max_width, scale=TEXT_SCALE):
"""Return wrapped lines for text using the display font metrics."""
words = str(text).split()
lines = []
current_line = ""
if not words:
return lines
for word in words:
test_line = current_line + (" " if current_line else "") + word
w = display.measure_text(test_line, scale=scale)
if w <= max_width:
current_line = test_line
else:
if current_line:
lines.append(current_line)
if display.measure_text(word, scale=scale) > max_width:
lines.append(word)
current_line = ""
else:
current_line = word
if current_line:
lines.append(current_line)
return lines
# ============================================================================
# HELPER: DATE / CALENDAR MATH
# ============================================================================
def days_in_month(year, month):
"""Return the number of days in the given month."""
if month == 2:
# Leap year check
if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0):
return 29
return 28
if month in (4, 6, 9, 11):
return 30
return 31
def day_of_week(year, month, day):
"""Return 0=Monday .. 6=Sunday using Zeller-like algorithm adjusted
for our calendar (Monday-first weeks)."""
# Tomohiko Sakamoto's algorithm, adjusted for Monday=0
t = [0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4]
y = year - (1 if month < 3 else 0)
d = (y + y // 4 - y // 100 + y // 400 + t[month - 1] + day) % 7
# Convert Sunday=0 to Sunday=6, Monday=1 to Monday=0, etc.
return (d + 6) % 7
def previous_month(year, month):
"""Return (year, month) for the previous month."""
if month == 1:
return year - 1, 12
return year, month - 1
def next_month(year, month):
"""Return (year, month) for the next month."""
if month == 12:
return year + 1, 1
return year, month + 1
# ============================================================================
# NETWORKING
# ============================================================================
def connect_wifi(app):
"""Connect to WiFi using credentials from secrets.py.
Returns True on success, False on failure.
Blinks status messages on the display during the attempt.
"""
try:
import secrets
except ImportError:
draw_status("ERROR: secrets.py not found.\n"
"Copy config.example.py to secrets.py")
return False
ssid = getattr(secrets, "WIFI_SSID", "")
password = getattr(secrets, "WIFI_PASSWORD", "")
app.api_token = getattr(secrets, "API_TOKEN", "")
if not ssid:
draw_status("ERROR: WIFI_SSID not set in secrets.py")
return False
if not app.api_token:
draw_status("ERROR: API_TOKEN not set in secrets.py")
return False
draw_status("Connecting to WiFi:\n{}".format(ssid))
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
if wlan.isconnected():
draw_status("Already connected.\nSyncing time...")
return True
wlan.connect(ssid, password)
# Wait for connection with timeout
elapsed = 0
while not wlan.isconnected() and elapsed < WIFI_TIMEOUT:
time.sleep(0.5)
elapsed += 0.5
if wlan.isconnected():
ip = wlan.ifconfig()[0]
draw_status("Connected.\nIP: {}\nSyncing time...".format(ip))
return True
else:
draw_status("WiFi connection failed.\n"
"Check credentials.\n"
"Retrying in 10 seconds...")
return False
def sync_time():
"""Synchronise system time via NTP. Non-fatal on failure."""
try:
ntptime.settime()
except Exception:
# NTP failure is non-fatal; calendar still works (shows RTC time)
pass
def set_today(app):
"""Read current date from system clock into app today fields."""
lt = time.localtime()
app.today_year = lt[0]
app.today_month = lt[1]
app.today_day = lt[2]
def make_date_string(year, month, day):
"""Format a date as YYYY-MM-DD for the API."""
return "{:04d}-{:02d}-{:02d}".format(year, month, day)
# ============================================================================
# DISPLAY SLEEP
# ============================================================================
def _fade_backlight(start, end, duration_ms=DISPLAY_FADE_MS, steps=DISPLAY_FADE_STEPS):
"""Gradually fade backlight from start to end brightness."""
step_delay = duration_ms / 1000.0 / steps
for i in range(steps + 1):
t = i / steps
brightness = start + (end - start) * t
try:
presto.set_backlight(brightness)
except Exception:
return
time.sleep(step_delay)
def sleep_display(app):
"""Turn off the display backlight with a gradual fade."""
_fade_backlight(DISPLAY_BRIGHTNESS, DISPLAY_SLEEP_BRIGHTNESS)
app.touch.display_awake = False
def wake_display(app):
"""Fade the backlight in, then refresh the clock, reconnect WiFi if
needed, and redraw the current view."""
_fade_backlight(DISPLAY_SLEEP_BRIGHTNESS, DISPLAY_BRIGHTNESS)
app.touch.display_awake = True
# Refresh today's date from the system clock (may have crossed midnight).
set_today(app)
if not wifi_connected():
ensure_wifi_connected(app)
redraw_current_view(app)
def wifi_connected():
"""Return True if the WLAN interface is currently connected."""
try:
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
return wlan.isconnected()
except Exception:
return False
def ensure_wifi_connected(app):
"""Reconnect WiFi if it dropped while the display was asleep."""
if wifi_connected():
return True
return connect_wifi(app)
def redraw_current_view(app):
"""Redraw the active view after wake-time status messages."""
if app.screen == STATE_HOME:
draw_home_screen(app)
elif app.screen == STATE_MONTH:
draw_month_view(app)
elif app.screen == STATE_DAY:
draw_day_view(app)
elif app.screen == STATE_RECORD:
draw_record_detail(app)
elif app.screen == STATE_SEARCH_INPUT:
draw_search_input(app)
elif app.screen == STATE_SEARCH_RESULTS:
draw_search_results(app)
# ============================================================================
# API CLIENT
# ============================================================================
def _auth_header(app):
"""Return the Authorization header dict for urequests."""
return {"Authorization": "Bearer " + app.api_token}
def fetch_records(app, year, month, day):
"""Fetch records released on the given date from the API.
Returns (records_list, error_flag).
- On success: (list_of_dicts, False)
- On failure: ([], True)
"""
date_str = make_date_string(year, month, day)
url = API_BASE + "/api/v1/collection/on_this_day?date=" + date_str
try:
resp = urequests.get(url, headers=_auth_header(app))
if resp.status_code == 200:
data = resp.json()
recs = data.get("records", [])
resp.close()
gc.collect()
return recs, False
else:
resp.close()
gc.collect()
return [], True
except Exception as e:
# OSError for network failures, ValueError for JSON parse errors
gc.collect()
return [], True
def set_day_records(app, recs, had_error):
"""Set day-view records and prepare display caches."""
app.day.records = recs
app.day.error = had_error
app.day.scroll_offset = 0
if had_error:
app.day.content_height = 0
return
app.day.content_height = prepare_record_list(app, recs)
def fetch_search_results(app, query):
"""Fetch search results from the API.
Returns (records_list, error_flag). Same shape as fetch_records().
"""
# urequests doesn't have url-encode built-in; hand-encode common chars
encoded = query.replace(" ", "+")
url = API_BASE + "/api/v1/collection?q=" + encoded + "&limit=20"
try:
resp = urequests.get(url, headers=_auth_header(app))
if resp.status_code == 200:
data = resp.json()
recs = data.get("records", [])
resp.close()
gc.collect()
return recs, False
else:
resp.close()
gc.collect()
return [], True
except Exception:
gc.collect()
return [], True
def fetch_thumbnail(app, url):
"""Fetch a JPEG thumbnail from the given URL.
Returns the raw bytes on success, None on failure.
"""
try:
resp = urequests.get(url, headers=_auth_header(app))
if resp.status_code == 200:
data = resp.content
resp.close()
return data
resp.close()
except Exception:
pass
return None
# ============================================================================
# NAVIGATION
# ============================================================================
def go_home(app):
"""Navigate to the home screen."""
app.screen = STATE_HOME
draw_home_screen(app)
def open_month_for_today(app):
"""Open the month view focused on today's date."""
app.view_year = app.today_year
app.view_month = app.today_month
app.day.selected_day = app.today_day
app.screen = STATE_MONTH
draw_month_view(app)
def open_day(app, day_num):
"""Open a day, reset its list state, fetch records, and render it."""
app.day.selected_day = day_num
app.day.records = []
app.day.error = False
app.day.scroll_offset = 0
app.day.content_height = 0
app.screen = STATE_DAY
draw_status("Loading records for\n{} {}, {}...".format(
MONTH_NAMES[app.view_month - 1], day_num, app.view_year
))
recs, had_error = fetch_records(app, app.view_year, app.view_month, day_num)
set_day_records(app, recs, had_error)
draw_day_view(app)
def open_record(app, source_screen, record_idx):
"""Open a record detail page from day or search results."""
app.detail.selected_index = record_idx
app.detail.source_screen = source_screen
app.detail.scroll_offset = 0
app.detail.content_height = 0
app.detail.scrobble_state = "idle"
app.screen = STATE_RECORD
draw_record_detail(app)
def back_from_record(app):
"""Return from detail to the originating list and reset detail state."""
source_screen = app.detail.source_screen
app.detail.scroll_offset = 0
app.detail.content_height = 0
app.detail.scrobble_state = "idle"
app.detail.selected_index = None
app.detail.source_screen = None
if source_screen == STATE_SEARCH_RESULTS:
app.screen = STATE_SEARCH_RESULTS
draw_search_results(app)
else:
app.screen = STATE_DAY
draw_day_view(app)
def show_search_input(app, reset_keyboard=False):
"""Navigate to search input, optionally resetting keyboard mode."""
if reset_keyboard:
app.search.keyboard_mode = "alpha"
app.screen = STATE_SEARCH_INPUT
draw_search_input(app)
def show_search_results(app, recs, had_error):
"""Navigate to search results and reset result scroll state."""
app.search.results = recs
app.search.error = had_error
app.search.scroll_offset = 0
app.search.content_height = 0
if not had_error and recs:
app.search.content_height = prepare_record_list(app, recs)
app.screen = STATE_SEARCH_RESULTS
draw_search_results(app)
# ============================================================================
# JPEG RENDERING
# ============================================================================
def _jpeg_scale_options():
"""Return JPEG scale flags paired with their output-size divisors."""
full = getattr(_jpegdec_lib, "JPEG_SCALE_FULL", 0)
half = getattr(_jpegdec_lib, "JPEG_SCALE_HALF", 1)
quarter = getattr(_jpegdec_lib, "JPEG_SCALE_QUARTER", 2)
eighth = getattr(_jpegdec_lib, "JPEG_SCALE_EIGHTH", 3)
return ((full, 1), (half, 2), (quarter, 4), (eighth, 8))
def _close_jpeg(jpeg):
"""Release a jpegdec object if the firmware exposes close()."""
if jpeg is None:
return
try:
jpeg.close()
except Exception:
pass
def draw_jpeg(data, x, y, max_w, max_h):
"""Decode and draw a JPEG image, scaled to fit within max_w x max_h
and centered in the bounding box.
Uses jpegdec module (standard on Pimoroni firmware).
Falls back to a placeholder rectangle on failure.
"""
if data is None:
_draw_placeholder(x, y, max_w, max_h)
return
# Try jpegdec module with smart scaling
if _HAS_JPEGDEC:
jpeg = None
try:
jpeg = _jpegdec_lib.JPEG(display)
try:
jpeg.open_RAM(memoryview(data))
except Exception:
jpeg.open_RAM(data)
# Attempt smart scaling: get dimensions, pick best scale, center
try:
img_h = jpeg.get_height()
img_w = jpeg.get_width()
# Try scales from largest to smallest; use the first that fits.
scale = None
divisor = 1
for scale_flag, scale_divisor in _jpeg_scale_options():
if img_w // scale_divisor <= max_w and img_h // scale_divisor <= max_h:
scale = scale_flag
divisor = scale_divisor
break
if scale is None:
scale, divisor = _jpeg_scale_options()[-1]
sw = img_w // divisor
sh = img_h // divisor
ox = x + (max_w - sw) // 2
oy = y + (max_h - sh) // 2
jpeg.decode(ox, oy, scale)
_close_jpeg(jpeg)
return
except Exception:
pass
# Fallback: decode at quarter scale (works for most cover art)
jpeg.decode(x, y, getattr(_jpegdec_lib, "JPEG_SCALE_QUARTER", 2))
_close_jpeg(jpeg)
return
except Exception:
_close_jpeg(jpeg)
pass
# Method 2: PicoGraphics built-in JPEG support
try:
if hasattr(display, "open_jpeg_from_RAM"):
display.open_jpeg_from_RAM(data)
display.decode_jpeg(x, y)
return
except Exception:
pass
# Method 3: alternate PicoGraphics JPEG API
try:
if hasattr(display, "draw_jpeg"):
display.draw_jpeg(data, x, y)
return
except Exception:
pass
# All methods failed — draw placeholder
_draw_placeholder(x, y, max_w, max_h)
def _draw_placeholder(x, y, w, h):
"""Draw a grey placeholder rectangle with a question mark."""
display.set_pen(_pen_placeholder)
display.rectangle(x, y, w, h)
display.set_pen(_pen_dim_text)
cx = x + w // 2 - display.measure_text("?", scale=PLACEHOLDER_TEXT_SCALE) // 2
cy = y + h // 2 - px(10)
display.text("?", cx, cy, scale=PLACEHOLDER_TEXT_SCALE)
# ============================================================================
# DRAWING: STATUS SCREEN (startup / error)
# ============================================================================
def draw_status(message):
"""Draw a simple centered status message on the display (used during
startup and for persistent errors)."""
display.set_pen(_pen_bg)
display.clear()
display.set_pen(_pen_status)
display.set_font("bitmap8")
lines = message.split("\n")
line_h = px(20)
total_h = len(lines) * line_h
start_y = (HEIGHT - total_h) // 2
for i, line in enumerate(lines):
w = display.measure_text(line, scale=TEXT_SCALE)
x = (WIDTH - w) // 2
display.text(line, x, start_y + i * line_h, scale=TEXT_SCALE)
presto.update()
# ============================================================================
# DRAWING: MONTH CALENDAR
# ============================================================================
def draw_month_view(app):
"""Render the full month calendar view including header, day-of-week
labels, day grid, and today highlight."""
display.set_pen(_pen_bg)
display.clear()
_draw_month_header(app)
_draw_day_labels()
_draw_day_grid(app)
presto.update()
HOME_BTN_W = px(30)
HOME_BTN_H = px(25)
HOME_BTN_Y = HEADER_Y + (HEADER_H - HOME_BTN_H) // 2
def _draw_month_header(app):
"""Draw the month/year title, navigation arrows, and Home button."""
# Background bar
display.set_pen(_pen_cell_bg)
display.rectangle(0, HEADER_Y, WIDTH, HEADER_H)
# Month and year text (centered between arrow buttons)
display.set_pen(_pen_header_text)
display.set_font("bitmap14_outline")
title = "{} {}".format(MONTH_NAMES[app.view_month - 1], app.view_year)
tw = display.measure_text(title, scale=TEXT_SCALE)
# Left boundary: after Home + left-arrow; right boundary: before right-arrow
title_left = HEADER_SIDE_MARGIN + HOME_BTN_W + px(4) + ARROW_W
title_right = WIDTH - ARROW_W - HEADER_SIDE_MARGIN
title_area = title_right - title_left
tx = title_left + (title_area - tw) // 2
ty = HEADER_Y + (HEADER_H - HEADER_TEXT_H) // 2
display.text(title, tx, ty, scale=TEXT_SCALE)
# Home button (leftmost)
hx = HEADER_SIDE_MARGIN
hy = HOME_BTN_Y
display.set_pen(_pen_placeholder)
display.rectangle(hx, hy, HOME_BTN_W, HOME_BTN_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("H", hx, hy, HOME_BTN_W, HOME_BTN_H, TEXT_H)
# Left arrow (shifted right to make room for Home)
lx = hx + HOME_BTN_W + px(4)
ly = HEADER_BUTTON_Y
display.set_pen(_pen_placeholder)
display.rectangle(lx, ly, ARROW_W, ARROW_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("<", lx, ly, ARROW_W, ARROW_H, TEXT_H)
# Right arrow
rx = WIDTH - ARROW_W - HEADER_SIDE_MARGIN
ry = HEADER_BUTTON_Y
display.set_pen(_pen_placeholder)
display.rectangle(rx, ry, ARROW_W, ARROW_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text(">", rx, ry, ARROW_W, ARROW_H, TEXT_H)
def _draw_centered_text(text, x, y, w, h, text_h, scale=TEXT_SCALE):
"""Draw text centered inside a rectangular area."""
tw = display.measure_text(text, scale=scale)
tx = x + (w - tw) // 2
ty = y + (h - text_h) // 2
display.text(text, tx, ty, scale=scale)
def _draw_day_labels():
"""Draw Mon..Sun labels below the header."""
display.set_pen(_pen_dim_text)
display.set_font("bitmap8")
for i, name in enumerate(DAY_NAMES):
cx = GRID_LEFT + i * (CELL_SIZE + CELL_GAP) + CELL_SIZE // 2
tw = display.measure_text(name, scale=TEXT_SCALE)
display.text(name, cx - tw // 2, DOW_Y, scale=TEXT_SCALE)
def _draw_day_grid(app):
"""Draw the 7x6 grid of day cells for the current view month."""
days = days_in_month(app.view_year, app.view_month)
first_dow = day_of_week(app.view_year, app.view_month, 1)
display.set_font("bitmap8")
# Draw cells for 6 rows
for row in range(MAX_ROWS):
for col in range(CELLS_PER_ROW):
cell_index = row * CELLS_PER_ROW + col
day_num = cell_index - first_dow + 1
cx = GRID_LEFT + col * (CELL_SIZE + CELL_GAP)
cy = CALENDAR_TOP + row * (CELL_SIZE + CELL_GAP)
if day_num < 1 or day_num > days:
# Cell belongs to previous/next month — dim it
display.set_pen(_pen_cell_other)
display.rectangle(cx, cy, CELL_SIZE, CELL_SIZE)
if day_num > days:
# Show overflow day numbers dimmed
overflow = day_num - days
display.set_pen(_pen_dim_text)
_draw_centered_num(overflow, cx + CELL_SIZE // 2, cy + CELL_SIZE // 2)
continue
# Determine cell style
is_today = (
app.view_year == app.today_year
and app.view_month == app.today_month
and day_num == app.today_day
)
is_selected = (app.screen == STATE_DAY and day_num == app.day.selected_day)
# Handle today + selected combo specially (show both highlight and border)
if is_today and is_selected:
display.set_pen(_pen_today_bg)
display.rectangle(cx, cy, CELL_SIZE, CELL_SIZE)
# Selection border on top of today highlight
display.set_pen(_pen_arrow)
display.line(cx, cy, cx + CELL_SIZE - 1, cy)
display.line(cx, cy + CELL_SIZE - 1, cx + CELL_SIZE - 1, cy + CELL_SIZE - 1)
display.line(cx, cy, cx, cy + CELL_SIZE - 1)
display.line(cx + CELL_SIZE - 1, cy, cx + CELL_SIZE - 1, cy + CELL_SIZE - 1)
display.set_pen(_pen_today_text)
_draw_centered_num(day_num, cx + CELL_SIZE // 2, cy + CELL_SIZE // 2)
continue
if is_today:
display.set_pen(_pen_today_bg)
elif is_selected:
# Outline the selected cell (non-today)
display.set_pen(_pen_cell_bg)
display.rectangle(cx, cy, CELL_SIZE, CELL_SIZE)
display.set_pen(_pen_arrow)
display.line(cx, cy, cx + CELL_SIZE - 1, cy)
display.line(cx, cy + CELL_SIZE - 1, cx + CELL_SIZE - 1, cy + CELL_SIZE - 1)
display.line(cx, cy, cx, cy + CELL_SIZE - 1)
display.line(cx + CELL_SIZE - 1, cy, cx + CELL_SIZE - 1, cy + CELL_SIZE - 1)
display.set_pen(_pen_normal_text)
_draw_centered_num(day_num, cx + CELL_SIZE // 2, cy + CELL_SIZE // 2)
continue
else:
display.set_pen(_pen_cell_bg)
display.rectangle(cx, cy, CELL_SIZE, CELL_SIZE)
# Day number
if is_today:
display.set_pen(_pen_today_text)
else:
display.set_pen(_pen_normal_text)
_draw_centered_num(day_num, cx + CELL_SIZE // 2, cy + CELL_SIZE // 2)
def _draw_centered_num(num, cx, cy):
"""Draw a number centered at (cx, cy)."""
text = str(num)
tw = display.measure_text(text, scale=TEXT_SCALE)
display.text(text, cx - tw // 2, cy - px(5), scale=TEXT_SCALE)
# ============================================================================
# DRAWING: HOME SCREEN (splash)
# ============================================================================
def draw_home_screen(app):
"""Render the splash screen with two large touch targets."""
display.set_pen(_pen_bg)
display.clear()
# Title
display.set_pen(_pen_title)
display.set_font("bitmap14_outline")
tw = display.measure_text(HOME_TITLE, scale=TEXT_SCALE)
display.text(HOME_TITLE, (WIDTH - tw) // 2, HOME_TITLE_Y, scale=TEXT_SCALE)
# Buttons
_draw_home_button(HOME_BUTTON1_Y, "Search Collection")
_draw_home_button(HOME_BUTTON2_Y, "Today's Records")
presto.update()
def _draw_home_button(y, label):
"""Draw a large rounded-rectangle button for the splash screen."""
display.set_pen(_pen_home_btn)
display.rectangle(HOME_BUTTON_X, y, HOME_BUTTON_W, HOME_BUTTON_H)
display.set_pen(_pen_today_text)
display.set_font("bitmap8")
tw = display.measure_text(label, scale=TEXT_SCALE)
tx = HOME_BUTTON_X + (HOME_BUTTON_W - tw) // 2
ty = y + (HOME_BUTTON_H - TEXT_H) // 2
display.text(label, tx, ty, scale=TEXT_SCALE)
# ============================================================================
# DRAWING: SEARCH INPUT (keyboard)
# ============================================================================
def draw_search_input(app):
"""Render the search input view with query field and on-screen keyboard."""
display.set_pen(_pen_bg)
display.clear()
_draw_search_input_header()
# Query text field
display.set_pen(_pen_cell_bg)
display.rectangle(KB_INPUT_MARGIN, KB_INPUT_Y,
WIDTH - 2 * KB_INPUT_MARGIN, KB_INPUT_H)
display.set_pen(_pen_header_text)
display.set_font("bitmap8")
# Show cursor as underscore if query is empty
display_q = app.search.query if app.search.query else "_"
display.text(
display_q,
KB_INPUT_MARGIN + px(8),
KB_INPUT_Y + px(12),
scale=TEXT_SCALE
)
_draw_keyboard(app)
presto.update()
def _draw_search_input_header():
"""Draw the search input header with title and Back-to-Home button."""
display.set_pen(_pen_cell_bg)
display.rectangle(0, DAY_HEADER_Y, WIDTH, DAY_HEADER_H)
# Back-to-Home button
bx, by = BACK_X, BACK_Y
display.set_pen(_pen_placeholder)
display.rectangle(bx, by, BACK_W, BACK_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("<", bx, by, BACK_W, BACK_H, DAY_COUNT_TEXT_H)
# Title
display.set_pen(_pen_header_text)
display.set_font("bitmap14_outline")
title = "Search"
tw = display.measure_text(title, scale=TEXT_SCALE)
display.text(title, (WIDTH - tw) // 2,
DAY_HEADER_Y + (DAY_HEADER_H - DAY_HEADER_TEXT_H) // 2, scale=TEXT_SCALE)
def _draw_keyboard(app):
"""Draw the on-screen QWERTY or numbers keyboard."""
display.set_font("bitmap8")
keys_matrix = ALPHA_KEYS if app.search.keyboard_mode == "alpha" else NUM_KEYS
toggle_label = "123" if app.search.keyboard_mode == "alpha" else "ABC"
cy = KB_ROWS_START_Y
for row_keys in keys_matrix:
num_keys = len(row_keys)
total_gap = (num_keys - 1) * KB_KEY_GAP
total_key_w = num_keys * KB_KEY_W
row_start_x = (WIDTH - total_key_w - total_gap) // 2
for i, char in enumerate(row_keys):
kx = row_start_x + i * (KB_KEY_W + KB_KEY_GAP)
_draw_key(kx, cy, char, KB_KEY_W, KB_KEY_H)
cy += KB_KEY_H + KB_KEY_GAP
# Bottom row: toggle | space | backspace | OK
bottom_w = (WIDTH - 2 * KB_MARGIN - 3 * KB_KEY_GAP) // 4
bx = KB_MARGIN
_draw_key(bx, cy, toggle_label, bottom_w, KB_KEY_H)
bx += bottom_w + KB_KEY_GAP
_draw_key(bx, cy, "Space", bottom_w, KB_KEY_H)
bx += bottom_w + KB_KEY_GAP
_draw_key(bx, cy, "<-", bottom_w, KB_KEY_H)
bx += bottom_w + KB_KEY_GAP
ok_pen = _pen_dim_text if app.search.query.strip() == "" else _pen_header_text
_draw_key(bx, cy, "OK", bottom_w, KB_KEY_H, text_pen=ok_pen)
def _draw_key(x, y, label, w, h, text_pen=None):
"""Draw a single keyboard key as a rounded rectangle with centered label."""
display.set_pen(_pen_cell_bg)
display.rectangle(x, y, w, h)
pen = text_pen if text_pen is not None else _pen_normal_text
display.set_pen(pen)
tw = display.measure_text(label, scale=TEXT_SCALE)
tx = x + (w - tw) // 2
ty = y + (h - TEXT_H) // 2
display.text(label, tx, ty, scale=TEXT_SCALE)
def _keyboard_hit_test(app, x, y):
"""Map a touch (x, y) to a keyboard action.
Returns: a character string, "toggle", "space", "backspace", "ok", or None.
"""
if y < KB_ROWS_START_Y:
return None
keys_matrix = ALPHA_KEYS if app.search.keyboard_mode == "alpha" else NUM_KEYS
cy = KB_ROWS_START_Y
for row_keys in keys_matrix:
num_keys = len(row_keys)
total_gap = (num_keys - 1) * KB_KEY_GAP
total_key_w = num_keys * KB_KEY_W
row_start_x = (WIDTH - total_key_w - total_gap) // 2
for i, char in enumerate(row_keys):
kx = row_start_x + i * (KB_KEY_W + KB_KEY_GAP)
if kx <= x < kx + KB_KEY_W and cy <= y < cy + KB_KEY_H:
return char
cy += KB_KEY_H + KB_KEY_GAP
# Bottom row
bottom_w = (WIDTH - 2 * KB_MARGIN - 3 * KB_KEY_GAP) // 4
bx = KB_MARGIN
if bx <= x < bx + bottom_w and cy <= y < cy + KB_KEY_H:
return "toggle"
bx += bottom_w + KB_KEY_GAP
if bx <= x < bx + bottom_w and cy <= y < cy + KB_KEY_H:
return "space"
bx += bottom_w + KB_KEY_GAP
if bx <= x < bx + bottom_w and cy <= y < cy + KB_KEY_H:
return "backspace"
bx += bottom_w + KB_KEY_GAP
if bx <= x < bx + bottom_w and cy <= y < cy + KB_KEY_H:
return "ok"
return None
def _flash_key(kx, ky, kw, kh, label):
"""Brief visual feedback for a key press."""
_draw_key(kx, ky, label, kw, kh, text_pen=_pen_today_text)
display.set_pen(_pen_arrow)
display.rectangle(kx, ky, kw, kh)
presto.update()
time.sleep(0.05)
# ============================================================================
# DRAWING: SEARCH RESULTS
# ============================================================================
def draw_search_results(app):
"""Render the search results view, reusing record-list rendering."""
display.set_pen(_pen_bg)
display.clear()
_draw_search_results_header(app)
if app.search.error:
_draw_search_error()
presto.update()
return
if not app.search.results:
_draw_search_empty()
presto.update()
return
_draw_search_record_list(app)
presto.update()
def _draw_search_results_header(app):
"""Draw the search results header with Back button and query label."""
display.set_pen(_pen_cell_bg)
display.rectangle(0, DAY_HEADER_Y, WIDTH, DAY_HEADER_H)
# Back button → search input (preserves query)
bx, by = BACK_X, BACK_Y
display.set_pen(_pen_placeholder)
display.rectangle(bx, by, BACK_W, BACK_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("<", bx, by, BACK_W, BACK_H, DAY_COUNT_TEXT_H)
# Title "Search: <query>" — truncate for display only, never mutate
# the stored search query so user can refine on Back
display.set_pen(_pen_header_text)
display.set_font("bitmap14_outline")
display_label = "Search: " + app.search.query
max_w = WIDTH - (BACK_X + BACK_W + px(8)) - px(8)
if display.measure_text(display_label, scale=TEXT_SCALE) > max_w:
suffix = "..."
display_q = app.search.query
while (display.measure_text("Search: " + display_q + suffix, scale=TEXT_SCALE) > max_w
and len(display_q) > 0):
display_q = display_q[:-1]
display_label = "Search: " + (display_q + suffix if display_q else suffix)
tw = display.measure_text(display_label, scale=TEXT_SCALE)
display.text(display_label, (WIDTH - tw) // 2,
DAY_HEADER_Y + (DAY_HEADER_H - DAY_HEADER_TEXT_H) // 2, scale=TEXT_SCALE)
def _draw_search_record_list(app):
"""Draw the scrollable search results list, mirroring day-view scroll."""
max_offset = _search_max_scroll_offset(app)
app.search.scroll_offset = min(max(0, app.search.scroll_offset), max_offset)
# Up arrow if scrolled down
if app.search.scroll_offset > 0:
display.set_pen(_pen_arrow)
display.set_font("bitmap14_outline")
display.text("^", WIDTH // 2 - px(8), RECORD_START_Y - px(28), scale=TEXT_SCALE)
cy = RECORD_START_Y - app.search.scroll_offset
for rec in app.search.results:
row_h = rec.get("_row_height", THUMB_SIZE + px(8))
row_bottom = cy + row_h
if row_bottom <= RECORD_START_Y:
cy = row_bottom
continue
if cy >= HEIGHT - px(28):
break
_draw_record_row(app, rec, cy)
cy = row_bottom
# Down arrow if more records below
if app.search.scroll_offset < max_offset:
display.set_pen(_pen_arrow)
display.set_font("bitmap14_outline")
display.text("v", WIDTH // 2 - px(8), HEIGHT - px(24), scale=TEXT_SCALE)
def _search_max_scroll_offset(app):
"""Return the maximum pixel scroll offset for search results."""
viewport_h = HEIGHT - RECORD_START_Y - px(28)
return max(0, app.search.content_height - viewport_h)
def _draw_search_empty():
"""Show 'No records found' message."""
display.set_pen(_pen_dim_text)
display.set_font("bitmap8")
msg = "No records found"
mw = display.measure_text(msg, scale=TEXT_SCALE)
display.text(msg, (WIDTH - mw) // 2, HEIGHT // 2 - px(10), scale=TEXT_SCALE)
def _draw_search_error():
"""Show search error message with retry hint."""
display.set_pen(_pen_error)
display.set_font("bitmap8")
msg = "Could not reach server"
mw = display.measure_text(msg, scale=TEXT_SCALE)
display.text(msg, (WIDTH - mw) // 2, HEIGHT // 2 - px(20), scale=TEXT_SCALE)
display.set_pen(_pen_dim_text)
hint = "Tap to retry"
hw = display.measure_text(hint, scale=TEXT_SCALE)
display.text(hint, (WIDTH - hw) // 2, HEIGHT // 2 + px(10), scale=TEXT_SCALE)
# ============================================================================
# DRAWING: DAY VIEW (records list)
# ============================================================================
def draw_day_view(app):
"""Render the day view showing records for the selected date."""
display.set_pen(_pen_bg)
display.clear()
if app.day.error:
_draw_day_error()
_draw_day_header(app)
presto.update()
return
if not app.day.records:
_draw_day_empty()
_draw_day_header(app)
presto.update()
return
_draw_record_list(app)
_draw_day_header(app)
presto.update()
def _draw_day_header(app):
"""Draw the header with formatted date and back button."""
# Background bar
display.set_pen(_pen_cell_bg)
display.rectangle(0, DAY_HEADER_Y, WIDTH, DAY_HEADER_H)
# Back button
bx, by = BACK_X, BACK_Y
display.set_pen(_pen_placeholder)
display.rectangle(bx, by, BACK_W, BACK_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("<", bx, by, BACK_W, BACK_H, DAY_COUNT_TEXT_H)
# Formatted date
date_str = "{} {}, {}".format(
MONTH_NAMES[app.view_month - 1], app.day.selected_day, app.view_year
)
display.set_pen(_pen_header_text)
display.set_font("bitmap14_outline")
tw = display.measure_text(date_str, scale=TEXT_SCALE)
display.text(
date_str,
(WIDTH - tw) // 2,
DAY_HEADER_Y + (DAY_HEADER_H - DAY_HEADER_TEXT_H) // 2,
scale=TEXT_SCALE
)
# Record count
record_count = len(app.day.records)
count_str = "{} record{}".format(record_count, "s" if record_count != 1 else "")
display.set_pen(_pen_dim_text)
display.set_font("bitmap8")
cw = display.measure_text(count_str, scale=TEXT_SCALE)
display.text(
count_str,
WIDTH - cw - px(11),
DAY_HEADER_Y + (DAY_HEADER_H - DAY_COUNT_TEXT_H) // 2,
scale=TEXT_SCALE
)
def _draw_day_error():
"""Show error message when API call failed."""
display.set_pen(_pen_error)
display.set_font("bitmap8")
msg = "Could not reach server"
mw = display.measure_text(msg, scale=TEXT_SCALE)
display.text(msg, (WIDTH - mw) // 2, HEIGHT // 2 - px(20), scale=TEXT_SCALE)
display.set_pen(_pen_dim_text)
hint = "Tap < Back to return"
hw = display.measure_text(hint, scale=TEXT_SCALE)
display.text(hint, (WIDTH - hw) // 2, HEIGHT // 2 + px(10), scale=TEXT_SCALE)
def _draw_day_empty():
"""Show message when no records exist for the selected date."""
display.set_pen(_pen_dim_text)
display.set_font("bitmap8")
msg = "No records on this day"
mw = display.measure_text(msg, scale=TEXT_SCALE)
display.text(msg, (WIDTH - mw) // 2, HEIGHT // 2 - px(10), scale=TEXT_SCALE)
def _draw_record_list(app):
"""Draw the scrollable list of record rows with cover thumbnails.
Uses dynamic row heights so wrapped text doesn't break layout."""
max_offset = _max_scroll_offset(app)
app.day.scroll_offset = min(max(0, app.day.scroll_offset), max_offset)
# Up arrow if scrolled down
if app.day.scroll_offset > 0:
display.set_pen(_pen_arrow)
display.set_font("bitmap14_outline")
display.text("^", WIDTH // 2 - px(8), RECORD_START_Y - px(28), scale=TEXT_SCALE)
cy = RECORD_START_Y - app.day.scroll_offset
for rec in app.day.records:
row_h = rec.get("_row_height", THUMB_SIZE + px(8))
row_bottom = cy + row_h
if row_bottom <= RECORD_START_Y:
cy = row_bottom
continue
if cy >= HEIGHT - px(28):
break
_draw_record_row(app, rec, cy)
cy = row_bottom
# Down arrow if more records below
if app.day.scroll_offset < max_offset:
display.set_pen(_pen_arrow)
display.set_font("bitmap14_outline")
display.text("v", WIDTH // 2 - px(8), HEIGHT - px(24), scale=TEXT_SCALE)
def _max_scroll_offset(app):
"""Return the maximum pixel scroll offset for the current records."""
viewport_h = HEIGHT - RECORD_START_Y - px(28)
return max(0, app.day.content_height - viewport_h)
def prepare_record_list(app, recs):
"""Cache display fields, row heights, and thumbnails for a record list.
Returns the list content height for the caller's view state.
"""
display.set_font("bitmap8")
content_height = 0
for rec in recs:
_prepare_record_for_display(rec)
content_height += rec.get("_row_height", THUMB_SIZE + px(8))
preload_record_thumbnails(app, recs)
gc.collect()
return content_height
def _prepare_record_for_display(rec):
"""Prepare one record's display text and row height."""
title = display_text(rec.get("title", "Unknown Title"))
artists = rec.get("artists", [])
artist_str = display_text(", ".join(artists)) if artists else ""
meta_text = _record_meta_text(rec)
rec["_display_title"] = title
rec["_display_artists"] = artist_str
rec["_display_meta"] = meta_text
rec["_display_title_lines"] = _wrapped_lines(title, TEXT_W, scale=TEXT_SCALE)
rec["_display_artist_lines"] = (
_wrapped_lines(artist_str, TEXT_W, scale=TEXT_SCALE) if artist_str else []
)
rec["_display_meta_lines"] = (
_wrapped_lines(meta_text, TEXT_W, scale=TEXT_SCALE) if meta_text else []
)
rec["_thumb_url"] = _record_thumbnail_url(rec)
rec["_row_height"] = _record_row_height(rec)
def preload_record_thumbnails(app, recs):
"""Fetch thumbnail bytes before the first draw of a record list."""
for rec in recs:
if rec.get("micro_cover_url", ""):
_record_thumbnail_data(app, rec)
def _record_row_height(rec):
"""Calculate a record row height without drawing it."""
min_h = THUMB_SIZE + ROW_PAD_Y * 2 + ROW_SEPARATOR_H
title_lines = rec.get("_display_title_lines", None)
if title_lines is None:
title = rec.get("_display_title", display_text(rec.get("title", "Unknown Title")))
title_lines = _wrapped_lines(title, TEXT_W, scale=TEXT_SCALE)
ty = max(1, len(title_lines)) * TEXT_LINE_H
artist_lines = rec.get("_display_artist_lines", None)
if artist_lines is None:
artist_str = rec.get("_display_artists", "")
artist_lines = _wrapped_lines(artist_str, TEXT_W, scale=TEXT_SCALE) if artist_str else []
if artist_lines:
ty += px(2) + len(artist_lines) * TEXT_LINE_H
meta_lines = rec.get("_display_meta_lines", None)
if meta_lines is None:
meta_text = rec.get("_display_meta", _record_meta_text(rec))
meta_lines = _wrapped_lines(meta_text, TEXT_W, scale=TEXT_SCALE) if meta_text else []
if meta_lines:
ty += px(2) + len(meta_lines) * TEXT_LINE_H
content_h = max(THUMB_SIZE, ty) + ROW_PAD_Y * 2 + ROW_SEPARATOR_H
return max(min_h, content_h)
def _record_meta_text(rec):
"""Return compact format/date metadata for a record row."""
record_format = rec.get("format", "")
release_year = _release_year(rec.get("release_date", ""))
if record_format and release_year:
return "{} | {}".format(record_format, release_year)
if record_format:
return record_format
return release_year
def _release_year(release_date):
"""Extract a display year from an API release_date value."""
if not release_date:
return ""
return str(release_date)[:4]
def _record_thumbnail_data(app, rec):
"""Fetch thumbnail bytes once per record and reuse them on redraw."""
if rec.get("_thumb_failed", False):
return None
cached = rec.get("_thumb_data", None)
if cached is not None:
return cached
thumb_url = rec.get("_thumb_url", "") or _record_thumbnail_url(rec)
if not thumb_url:
return None
data = fetch_thumbnail(app, thumb_url)
if data is None:
rec["_thumb_failed"] = True
else:
rec["_thumb_data"] = data
return data
def _record_thumbnail_url(rec):
"""Return the preferred cover URL for a record row."""
return (
rec.get("mini_cover_url", "")
or rec.get("micro_cover_url", "")
or rec.get("thumb_url", "")
)
def _draw_record_row(app, rec, y):
"""Draw a single record row using its cached layout height."""
row_h = rec.get("_row_height", None)
if row_h is None:
row_h = _record_row_height(rec)
row_bottom = y + row_h
# Fetch and draw thumbnail (top-aligned in row)
thumb_y = y + ROW_PAD_Y
if app.touch.dragging:
_draw_placeholder(THUMB_MARGIN, thumb_y, THUMB_SIZE, THUMB_SIZE)
else:
jpeg_data = _record_thumbnail_data(app, rec)
if jpeg_data is not None:
draw_jpeg(jpeg_data, THUMB_MARGIN, thumb_y, THUMB_SIZE, THUMB_SIZE)
else:
_draw_placeholder(THUMB_MARGIN, thumb_y, THUMB_SIZE, THUMB_SIZE)
# Title (starts at same height as thumbnail)
display.set_font("bitmap8")
ty = y + ROW_PAD_Y
title_lines = rec.get("_display_title_lines", None)
if title_lines is None:
title = rec.get("_display_title", display_text(rec.get("title", "Unknown Title")))
ty = draw_wrapped(title, TEXT_X, ty, TEXT_W, _pen_title, scale=TEXT_SCALE)
else:
ty = draw_wrapped_lines(title_lines, TEXT_X, ty, _pen_title, scale=TEXT_SCALE)
# Artists
artist_lines = rec.get("_display_artist_lines", None)
if artist_lines is None:
artist_str = rec.get("_display_artists", "")
artist_lines = _wrapped_lines(artist_str, TEXT_W, scale=TEXT_SCALE) if artist_str else []
if artist_lines:
ty += px(2)
ty = draw_wrapped_lines(artist_lines, TEXT_X, ty, _pen_artist, scale=TEXT_SCALE)
meta_lines = rec.get("_display_meta_lines", None)
if meta_lines is None:
meta_text = rec.get("_display_meta", _record_meta_text(rec))
meta_lines = _wrapped_lines(meta_text, TEXT_W, scale=TEXT_SCALE) if meta_text else []
if meta_lines:
ty += px(2)
ty = draw_wrapped_lines(meta_lines, TEXT_X, ty, _pen_dim_text, scale=TEXT_SCALE)
# Separator line at the computed bottom
display.set_pen(_pen_cell_other)
display.line(
THUMB_MARGIN,
row_bottom - ROW_SEPARATOR_H,
WIDTH - THUMB_MARGIN,
row_bottom - ROW_SEPARATOR_H
)
# ============================================================================
# DRAWING: RECORD DETAIL
# ============================================================================
def _max_detail_scroll_offset(app):
"""Return the maximum pixel scroll offset for the detail view."""
if app.detail.content_height == 0:
return 0
content_bottom = DETAIL_COVER_Y + app.detail.content_height
return max(0, content_bottom - HEIGHT)
def _measure_detail_text_height(text, font="bitmap8", scale=TEXT_SCALE, max_w=None):
"""Return the pixel height that text would occupy when drawn wrapped."""
if max_w is None:
max_w = DETAIL_TEXT_W
lines = _wrapped_lines(text, max_w, scale=scale)
line_height = _line_height_for_font(font, scale)
return len(lines) * line_height
def _line_height_for_font(font, scale=TEXT_SCALE):
"""Return scaled line height for the bitmap font used by a detail section."""
if font == "bitmap14_outline":
return 14 * scale
return _text_line_height(scale)
def _line_metrics(lines, font="bitmap8", scale=TEXT_SCALE):
"""Pair pre-wrapped text lines with their measured widths."""
display.set_font(font)
metrics = []
for line in lines:
metrics.append((line, display.measure_text(line, scale=scale)))
return metrics
def _measure_detail_content(app, rec):
"""Compute and cache the total height of the scrollable detail content."""
h = 0
# Title (above cover)
title = rec.get("_display_title",
display_text(rec.get("title", "Unknown Title")))
display.set_font("bitmap14_outline")
title_lines = _wrapped_lines(title, DETAIL_TEXT_W, scale=TEXT_SCALE)
rec["_detail_title_lines"] = _line_metrics(
title_lines, font="bitmap14_outline", scale=TEXT_SCALE
)
h += len(title_lines) * TITLE_LINE_H
h += px(6)
# Artists (above cover)
artist_str = rec.get("_display_artists", "")
if not artist_str:
artists = rec.get("artists", [])
artist_str = display_text(", ".join(artists)) if artists else ""
if artist_str:
display.set_font("bitmap8")
artist_lines = _wrapped_lines(artist_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
rec["_detail_artist_lines"] = _line_metrics(artist_lines, scale=TEXT_SCALE)
h += len(artist_lines) * TEXT_LINE_H
h += px(4)
else:
rec["_detail_artist_lines"] = []
h += DETAIL_INFO_GAP # gap before cover
# Cover
h += DETAIL_COVER_SIZE
h += DETAIL_INFO_GAP
# Genres (below cover)
genres = rec.get("genres", [])
if genres:
genre_str = display_text(", ".join(genres))
display.set_font("bitmap8")
genre_lines = _wrapped_lines(genre_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
rec["_detail_genre_lines"] = _line_metrics(genre_lines, scale=TEXT_SCALE)
h += len(genre_lines) * TEXT_LINE_H
h += px(4)
else:
rec["_detail_genre_lines"] = []
h += px(6)
# Metadata line: record_type | format | year
meta_parts = []
record_type = rec.get("record_type", "")
if record_type:
meta_parts.append(display_text(record_type))
record_format = rec.get("format", "")
if record_format:
meta_parts.append(display_text(record_format))
release_date = rec.get("release_date", "")
if release_date:
meta_parts.append(str(release_date)[:4])
if meta_parts:
meta_str = " | ".join(meta_parts)
display.set_font("bitmap8")
meta_lines = _wrapped_lines(meta_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
rec["_detail_meta_lines"] = _line_metrics(meta_lines, scale=TEXT_SCALE)
h += len(meta_lines) * TEXT_LINE_H
h += px(4)
else:
rec["_detail_meta_lines"] = []
# Purchased at
purchased_at = rec.get("purchased_at", "")
if purchased_at:
purch_str = "Purchased: " + display_text(str(purchased_at)[:10])
display.set_font("bitmap8")
purchased_lines = _wrapped_lines(purch_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
rec["_detail_purchased_lines"] = _line_metrics(purchased_lines, scale=TEXT_SCALE)
h += len(purchased_lines) * TEXT_LINE_H
else:
rec["_detail_purchased_lines"] = []
# Scrobble button (at bottom, only if scrobble-eligible)
if rec.get("selected_release_id"):
h += SCROBBLE_BUTTON_GAP
h += SCROBBLE_BUTTON_H
app.detail.content_height = h
def _set_clip_below_header():
"""Restrict drawing to the area below the fixed header."""
try:
display.set_clip(0, DAY_HEADER_Y + DAY_HEADER_H,
WIDTH, HEIGHT - (DAY_HEADER_Y + DAY_HEADER_H))
except Exception:
pass
def _remove_clip():
"""Remove any active clip rectangle."""
try:
display.remove_clip()
except Exception:
pass
def draw_record_detail(app):
"""Render the individual record detail view. Layout order:
title, artists, large cover, genres, metadata, purchased at."""
display.set_pen(_pen_bg)
display.clear()
if app.detail.source_screen == STATE_SEARCH_RESULTS:
rec = app.search.results[app.detail.selected_index]
else:
rec = app.day.records[app.detail.selected_index]
# Measure content height before normal draws; drag redraws reuse it.
if app.detail.content_height == 0 or not app.touch.dragging:
_measure_detail_content(app, rec)
# Clamp scroll offset
max_off = _max_detail_scroll_offset(app)
if app.detail.scroll_offset > max_off:
app.detail.scroll_offset = max_off
if app.detail.scroll_offset < 0:
app.detail.scroll_offset = 0
offset = app.detail.scroll_offset
_draw_detail_header()
# Clip scrolling content below the header
_set_clip_below_header()
# Start drawing below the header
y = DETAIL_COVER_Y - offset
# Title and artists (above cover)
y = _draw_detail_title_artists(rec, y)
y += DETAIL_INFO_GAP # gap before cover
# Cover image
_draw_detail_cover(app, rec, y)
# Genres, metadata, purchased at (below cover)
y = y + DETAIL_COVER_SIZE + DETAIL_INFO_GAP
_draw_detail_info_below_cover(rec, y)
# Scrobble button (at bottom of content, only if eligible)
if rec.get("selected_release_id"):
# Compute button Y from measured content height (y doesn't track
# the bottom because _draw_detail_info_below_cover's return is
# discarded — use detail content height which already includes
# the button height and gap from Step 4).
button_y = (DETAIL_COVER_Y - offset
+ app.detail.content_height - SCROBBLE_BUTTON_H)
# Only draw if the button is at least partially visible
if (button_y + SCROBBLE_BUTTON_H > DAY_HEADER_Y + DAY_HEADER_H
and button_y < HEIGHT):
_draw_scrobble_button(app, rec, button_y)
# Scroll indicators
display.set_font("bitmap14_outline")
if offset > 0:
display.set_pen(_pen_arrow)
display.text("^", WIDTH // 2 - px(8), DAY_HEADER_H + px(4), scale=TEXT_SCALE)
if offset < max_off:
display.set_pen(_pen_arrow)
display.text("v", WIDTH // 2 - px(8), HEIGHT - px(24), scale=TEXT_SCALE)
_remove_clip()
presto.update()
def _draw_detail_header():
"""Draw the record detail header with back button."""
display.set_pen(_pen_cell_bg)
display.rectangle(0, DAY_HEADER_Y, WIDTH, DAY_HEADER_H)
# Back button
bx, by = BACK_X, BACK_Y
display.set_pen(_pen_placeholder)
display.rectangle(bx, by, BACK_W, BACK_H)
display.set_pen(_pen_back)
display.set_font("bitmap8")
_draw_centered_text("<", bx, by, BACK_W, BACK_H, DAY_COUNT_TEXT_H)
# Title label
display.set_pen(_pen_header_text)
display.set_font("bitmap14_outline")
label = "Record"
tw = display.measure_text(label, scale=TEXT_SCALE)
display.text(
label,
(WIDTH - tw) // 2,
DAY_HEADER_Y + (DAY_HEADER_H - DAY_HEADER_TEXT_H) // 2,
scale=TEXT_SCALE
)
def _draw_detail_title_artists(rec, y):
"""Draw title and artists above the cover. Returns y after drawing."""
# Title
title_lines = rec.get("_detail_title_lines", None)
if title_lines is None:
title = rec.get("_display_title",
display_text(rec.get("title", "Unknown Title")))
y = _draw_detail_text_line(title, y, _pen_title,
font="bitmap14_outline", scale=TEXT_SCALE)
else:
y = _draw_detail_text_lines(title_lines, y, _pen_title,
font="bitmap14_outline", scale=TEXT_SCALE)
y += px(6)
# Artists
artist_lines = rec.get("_detail_artist_lines", None)
if artist_lines is None:
artist_str = rec.get("_display_artists", "")
if not artist_str:
artists = rec.get("artists", [])
artist_str = display_text(", ".join(artists)) if artists else ""
artist_lines = _wrapped_lines(artist_str, DETAIL_TEXT_W, scale=TEXT_SCALE) if artist_str else []
if artist_lines:
y = _draw_detail_text_lines(artist_lines, y, _pen_artist)
y += px(4)
return y
def _draw_detail_cover(app, rec, y):
"""Fetch and draw the cover art at the given y position."""
# Skip if entirely outside viewport
if y + DETAIL_COVER_SIZE <= DAY_HEADER_Y + DAY_HEADER_H:
return
if y >= HEIGHT:
return
thumb_url = (
rec.get("thumb_url", "")
or rec.get("mini_cover_url", "")
or rec.get("micro_cover_url", "")
)
if not thumb_url:
_draw_placeholder(DETAIL_COVER_X, y,
DETAIL_COVER_SIZE, DETAIL_COVER_SIZE)
return
# Use cached data or fetch
data = rec.get("_detail_thumb_data", None)
if data is None and app.touch.dragging:
_draw_placeholder(DETAIL_COVER_X, y,
DETAIL_COVER_SIZE, DETAIL_COVER_SIZE)
return
if data is None and not rec.get("_detail_thumb_failed", False):
data = fetch_thumbnail(app, thumb_url)
if data is None:
rec["_detail_thumb_failed"] = True
else:
rec["_detail_thumb_data"] = data
if data is not None:
draw_jpeg(data, DETAIL_COVER_X, y,
DETAIL_COVER_SIZE, DETAIL_COVER_SIZE)
else:
_draw_placeholder(DETAIL_COVER_X, y,
DETAIL_COVER_SIZE, DETAIL_COVER_SIZE)
def _draw_detail_info_below_cover(rec, y):
"""Draw genres, metadata line, and purchased-at below the cover."""
# Genres
genre_lines = rec.get("_detail_genre_lines", None)
if genre_lines is None:
genres = rec.get("genres", [])
if genres:
genre_str = display_text(", ".join(genres))
genre_lines = _wrapped_lines(genre_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
else:
genre_lines = []
if genre_lines:
y = _draw_detail_text_lines(genre_lines, y, _pen_dim_text)
y += px(4)
y += px(6)
# Metadata: record_type | format | year
meta_lines = rec.get("_detail_meta_lines", None)
if meta_lines is None:
meta_parts = []
record_type = rec.get("record_type", "")
if record_type:
meta_parts.append(display_text(record_type))
record_format = rec.get("format", "")
if record_format:
meta_parts.append(display_text(record_format))
release_date = rec.get("release_date", "")
if release_date:
meta_parts.append(str(release_date)[:4])
meta_lines = _wrapped_lines(" | ".join(meta_parts), DETAIL_TEXT_W, scale=TEXT_SCALE) if meta_parts else []
if meta_lines:
y = _draw_detail_text_lines(meta_lines, y, _pen_dim_text)
y += px(4)
# Purchased at
purchased_lines = rec.get("_detail_purchased_lines", None)
if purchased_lines is None:
purchased_at = rec.get("purchased_at", "")
if purchased_at:
purch_str = "Purchased: " + display_text(str(purchased_at)[:10])
purchased_lines = _wrapped_lines(purch_str, DETAIL_TEXT_W, scale=TEXT_SCALE)
else:
purchased_lines = []
if purchased_lines:
y = _draw_detail_text_lines(purchased_lines, y, _pen_dim_text)
return y
def _draw_detail_text_line(text, y, pen, font="bitmap8", scale=TEXT_SCALE):
"""Draw text centered horizontally at y, wrapping if needed.
Returns the y-position after drawing (including wrapped lines)."""
max_w = DETAIL_TEXT_W
display.set_pen(pen)
display.set_font(font)
lines = _wrapped_lines(text, max_w, scale=scale)
line_height = _line_height_for_font(font, scale)
cy = y
for line in lines:
tw = display.measure_text(line, scale=scale)
display.text(line, (WIDTH - tw) // 2, cy, scale=scale)
cy += line_height
return cy
def _draw_detail_text_lines(lines, y, pen, font="bitmap8", scale=TEXT_SCALE):
"""Draw pre-wrapped detail text centered horizontally."""
display.set_pen(pen)
display.set_font(font)
line_height = _line_height_for_font(font, scale)
cy = y
for item in lines:
if isinstance(item, tuple):
line, tw = item
else:
line = item
tw = display.measure_text(line, scale=scale)
display.text(line, (WIDTH - tw) // 2, cy, scale=scale)
cy += line_height
return cy
def _draw_scrobble_button(app, rec, y):
"""Draw the scrobble button at (x, y). Button is horizontally centered.
Visual state depends on app detail scrobble state."""
bx = (WIDTH - SCROBBLE_BUTTON_W) // 2
if app.detail.scrobble_state == "done":
bg_pen = _pen_scrobble_done_bg
text_pen = _pen_scrobble_done_text
label = "Done"
elif app.detail.scrobble_state == "loading":
bg_pen = _pen_scrobble_bg
text_pen = _pen_scrobble_text
label = "..."
else:
bg_pen = _pen_scrobble_bg
text_pen = _pen_scrobble_text
label = "Scrobble"
display.set_pen(bg_pen)
display.rectangle(bx, y, SCROBBLE_BUTTON_W, SCROBBLE_BUTTON_H)
display.set_pen(text_pen)
display.set_font("bitmap8")
_draw_centered_text(label, bx, y, SCROBBLE_BUTTON_W, SCROBBLE_BUTTON_H, TEXT_H)
# ============================================================================
# TOUCH HANDLING
# ============================================================================
def read_touch():
"""Return the current touch as (x, y), or None when not pressed."""
try:
touch.poll()
except Exception:
pass
try:
if touch.state:
return int(touch.x), int(touch.y)
except Exception:
pass
for method_name in ("read", "get_touch"):
method = getattr(touch, method_name, None)
if method is None:
continue
try:
point = method()
except Exception:
continue
normalised = _normalise_touch(point)
if normalised is not None:
return normalised
return None
def _normalise_touch(point):
"""Convert common touch return shapes to (x, y)."""
if not point:
return None
if isinstance(point, (tuple, list)):
if len(point) == 2:
return int(point[0]), int(point[1])
if len(point) >= 3 and point[0] is not None:
return int(point[1]), int(point[2])
return None
try:
if hasattr(point, "state") and not point.state:
return None
return int(point.x), int(point.y)
except Exception:
return None
def wait_for_touch_release():
"""Block until the active touch is released."""
start = time.ticks_ms()
while read_touch() is not None:
if time.ticks_diff(time.ticks_ms(), start) >= TOUCH_RELEASE_TIMEOUT_MS:
return False
time.sleep(0.02)
return True
def touch_to_calendar_cell(x, y):
"""Map a touch (x, y) to (row, col) in the calendar grid, or None
if the touch is outside the grid."""
if y < CALENDAR_TOP:
return None
col = (x - GRID_LEFT) // (CELL_SIZE + CELL_GAP)
row = (y - CALENDAR_TOP) // (CELL_SIZE + CELL_GAP)
# Check within cell (not in gap)
cx = GRID_LEFT + col * (CELL_SIZE + CELL_GAP)
cy = CALENDAR_TOP + row * (CELL_SIZE + CELL_GAP)
if cx <= x < cx + CELL_SIZE and cy <= y < cy + CELL_SIZE:
if 0 <= col < CELLS_PER_ROW and 0 <= row < MAX_ROWS:
return row, col
return None
def cell_to_day(app, row, col):
"""Convert a calendar cell (row, col) to a day number (1-based)
for the current view month. Returns None if the cell is outside
the current month."""
first_dow = day_of_week(app.view_year, app.view_month, 1)
day_num = row * CELLS_PER_ROW + col - first_dow + 1
days = days_in_month(app.view_year, app.view_month)
if 1 <= day_num <= days:
return day_num
return None
def touch_to_record_index(app, y, recs=None, offset=None):
"""Map a touch y-coordinate to a record list index, accounting for
scroll offset. Use recs/offset params for search results, or defaults
for day view."""
if recs is None:
recs = app.day.records
if offset is None:
offset = app.day.scroll_offset
elif offset is None:
offset = app.search.scroll_offset
if not recs:
return None
cy = RECORD_START_Y - offset
for i, rec in enumerate(recs):
row_h = rec.get("_row_height", THUMB_SIZE + px(8))
if cy <= y < cy + row_h:
return i
cy += row_h
return None
def _scrobble_button_hit_test(app, x, y, rec):
"""Return True if the touch (x, y) falls within the scrobble button bounds.
Accounts for current detail scroll offset.
Ignores touches in the fixed header area (handled separately)."""
if not rec.get("selected_release_id"):
return False
# Reject touches in the fixed header zone (handled by back-button logic)
if y <= DAY_HEADER_Y + DAY_HEADER_H:
return False
# Compute button Y position — must match the formula used in
# draw_record_detail(). Detail content height already
# includes SCROBBLE_BUTTON_GAP + SCROBBLE_BUTTON_H from _measure_detail_content.
button_y = (DETAIL_COVER_Y - app.detail.scroll_offset
+ app.detail.content_height - SCROBBLE_BUTTON_H)
bx = (WIDTH - SCROBBLE_BUTTON_W) // 2
return (bx <= x <= bx + SCROBBLE_BUTTON_W and
button_y <= y <= button_y + SCROBBLE_BUTTON_H)
def handle_scrobble_touch(app, rec):
"""Execute the scrobble HTTP request and update button state.
Blocks during the request (urequests is synchronous on MicroPython).
On success, sets state to "done" (persists until navigation).
On failure, reverts to "idle"."""
rec_id = rec.get("id")
if not rec_id:
return
# Set loading state and redraw immediately so the user sees "..."
app.detail.scrobble_state = "loading"
draw_record_detail(app)
# Make the POST request. urequests has limited timeout support on
# MicroPython; if WiFi drops mid-request, the default timeout may
# be 30+ seconds. Test this scenario on-device.
url = API_BASE + "/api/v1/collection/" + str(rec_id) + "/scrobble"
try:
resp = urequests.post(url, headers=_auth_header(app))
if resp.status_code == 200:
app.detail.scrobble_state = "done"
else:
app.detail.scrobble_state = "idle"
resp.close()
except Exception:
app.detail.scrobble_state = "idle"
gc.collect()
draw_record_detail(app)
def handle_home_touch(app, x, y):
"""Process a touch event on the home/splash screen."""
# "Search Collection" button
if (HOME_BUTTON_X <= x <= HOME_BUTTON_X + HOME_BUTTON_W and
HOME_BUTTON1_Y <= y <= HOME_BUTTON1_Y + HOME_BUTTON_H):
app.search.query = ""
show_search_input(app, reset_keyboard=True)
return
# "Today's Records" button → month view with today highlighted
if (HOME_BUTTON_X <= x <= HOME_BUTTON_X + HOME_BUTTON_W and
HOME_BUTTON2_Y <= y <= HOME_BUTTON2_Y + HOME_BUTTON_H):
open_month_for_today(app)
return
def handle_search_input_touch(app, x, y):
"""Process a touch event in search input view."""
# Header Back → Home
if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H:
go_home(app)
return
action = _keyboard_hit_test(app, x, y)
if action is None:
return
if action == "toggle":
if app.search.keyboard_mode == "alpha":
app.search.keyboard_mode = "numbers"
else:
app.search.keyboard_mode = "alpha"
draw_search_input(app)
return
if action == "space":
if len(app.search.query) < 50:
app.search.query += " "
draw_search_input(app)
return
if action == "backspace":
app.search.query = app.search.query[:-1]
draw_search_input(app)
return
if action == "ok":
if not app.search.query.strip():
return
draw_status("Searching for:\n" + app.search.query)
if not ensure_wifi_connected(app):
show_search_results(app, [], True)
return
recs, had_error = fetch_search_results(app, app.search.query)
show_search_results(app, recs, had_error)
return
# Character key
if len(app.search.query) < 50 and len(action) == 1:
app.search.query += action
draw_search_input(app)
def handle_search_results_touch(app, x, y):
"""Process a tap event in search results view.
Back button, error retry, and record row taps.
Row scroll is handled by the drag logic in the main loop."""
# Back button → search input (preserves search_query so user can refine)
if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H:
show_search_input(app)
return
# Error state: retry on tap anywhere
if app.search.error:
draw_status("Retrying search...")
if not ensure_wifi_connected(app):
show_search_results(app, [], True)
return
recs, had_error = fetch_search_results(app, app.search.query)
show_search_results(app, recs, had_error)
return
# Record row tap → detail view
if not app.search.error and app.search.results:
rec_idx = touch_to_record_index(
app, y, recs=app.search.results, offset=app.search.scroll_offset
)
if rec_idx is not None:
open_record(app, STATE_SEARCH_RESULTS, rec_idx)
def handle_month_touch(app, x, y):
"""Process a touch event in month view state."""
# Check Home button
hx, hy = HEADER_SIDE_MARGIN, HOME_BTN_Y
if hx <= x <= hx + HOME_BTN_W and hy <= y <= hy + HOME_BTN_H:
go_home(app)
return
# Check left arrow (shifted right to make room for Home)
lx = HEADER_SIDE_MARGIN + HOME_BTN_W + px(4)
ly = HEADER_BUTTON_Y
if lx <= x <= lx + ARROW_W and ly <= y <= ly + ARROW_H:
app.view_year, app.view_month = previous_month(app.view_year, app.view_month)
draw_month_view(app)
return
# Check right arrow
rx, ry = WIDTH - ARROW_W - HEADER_SIDE_MARGIN, HEADER_BUTTON_Y
if rx <= x <= rx + ARROW_W and ry <= y <= ry + ARROW_H:
app.view_year, app.view_month = next_month(app.view_year, app.view_month)
draw_month_view(app)
return
# Check calendar cells
cell = touch_to_calendar_cell(x, y)
if cell is None:
return
row, col = cell
day_num = cell_to_day(app, row, col)
if day_num is None:
return
open_day(app, day_num)
def handle_day_touch(app, x, y):
"""Process a tap event in day view state.
Back button and scroll are handled by drag logic in the main loop."""
# Tap in error state: retry fetching records
if app.day.error:
draw_status("Retrying...")
if not ensure_wifi_connected(app):
set_day_records(app, [], True)
draw_day_view(app)
return
recs, had_error = fetch_records(
app, app.view_year, app.view_month, app.day.selected_day
)
set_day_records(app, recs, had_error)
draw_day_view(app)
return
# Row taps are handled by the main loop before this function is called.
def handle_vertical_drag(app, start_y, get_offset, set_offset, max_offset, redraw,
use_placeholders):
"""Handle a throttled vertical drag for any scrollable view.
The hot path only updates offsets and redraws; layout measurement and
network image fetches must already be avoided by the redraw path.
"""
drag_start_y = start_y
last_drag_y = start_y
pending_delta = 0
dragged = False
did_redraw = False
app.touch.dragging = False
app.touch.last_drag_redraw = time.ticks_ms()
while True:
touch_point = read_touch()
if touch_point is None:
break
current_y = touch_point[1]
if abs(current_y - drag_start_y) >= DRAG_REDRAW_PX:
dragged = True
pending_delta += last_drag_y - current_y
now = time.ticks_ms()
redraw_due = time.ticks_diff(now, app.touch.last_drag_redraw) >= DRAG_REDRAW_MS
if abs(pending_delta) >= DRAG_REDRAW_PX and redraw_due:
new_offset = min(max(0, get_offset() + pending_delta), max_offset())
if new_offset != get_offset():
set_offset(new_offset)
app.touch.dragging = use_placeholders
redraw()
did_redraw = True
app.touch.last_drag_redraw = now
pending_delta = 0
last_drag_y = current_y
time.sleep(0.01)
if dragged and pending_delta:
new_offset = min(max(0, get_offset() + pending_delta), max_offset())
if new_offset != get_offset():
set_offset(new_offset)
app.touch.dragging = use_placeholders
did_redraw = True
if did_redraw:
app.touch.dragging = False
redraw()
return dragged
# ============================================================================
# MAIN LOOP
# ============================================================================
def init_display():
"""Initialise pens (display is already set up at module level)."""
try:
display.set_font("bitmap8")
except Exception:
pass
_init_pens()
def main():
"""Application entry point. Runs the boot sequence then enters the
main event loop."""
app = AppState()
# -- Init display --
init_display()
try:
presto.set_backlight(DISPLAY_BRIGHTNESS)
except Exception:
pass
draw_status("Music Library\nStarting up...")
time.sleep(0.5)
# -- WiFi --
if not connect_wifi(app):
# Show persistent error; try to reconnect in a loop
while not connect_wifi(app):
time.sleep(10)
gc.collect()
# -- NTP sync --
sync_time()
set_today(app)
# Start on splash screen — no auto-fetch
app.view_year = app.today_year
app.view_month = app.today_month
app.day.selected_day = app.today_day
app.screen = STATE_HOME
app.day.error = False
app.day.scroll_offset = 0
draw_home_screen(app)
app.touch.last_activity = time.ticks_ms()
while True:
touch_point = read_touch()
now = time.ticks_ms()
if (app.touch.display_awake
and time.ticks_diff(now, app.touch.last_activity) >= DISPLAY_SLEEP_MS):
sleep_display(app)
if touch_point is None:
time.sleep(0.03)
continue
if not app.touch.display_awake:
wake_display(app)
app.touch.last_activity = now
app.touch.last_touch = now
wait_for_touch_release()
continue
x, y = touch_point
if time.ticks_diff(now, app.touch.last_touch) < DEBOUNCE_MS:
time.sleep(0.02)
continue
app.touch.last_touch = now
app.touch.last_activity = now
# -- STATE_HOME: splash screen --
if app.screen == STATE_HOME:
handle_home_touch(app, x, y)
wait_for_touch_release()
# -- STATE_SEARCH_INPUT: on-screen keyboard --
elif app.screen == STATE_SEARCH_INPUT:
handle_search_input_touch(app, x, y)
wait_for_touch_release()
# -- STATE_SEARCH_RESULTS: search results list --
elif app.screen == STATE_SEARCH_RESULTS:
# Check back button immediately (no drag needed)
if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H:
show_search_input(app)
wait_for_touch_release()
continue
# Error state: retry on tap anywhere (before drag)
if app.search.error:
handle_search_results_touch(app, x, y)
wait_for_touch_release()
continue
dragged = handle_vertical_drag(
app,
y,
lambda: app.search.scroll_offset,
lambda value: setattr(app.search, "scroll_offset", value),
lambda: _search_max_scroll_offset(app),
lambda: draw_search_results(app),
True
)
if not dragged:
# Record row tap handled by handle_search_results_touch
handle_search_results_touch(app, x, y)
elif app.screen == STATE_MONTH:
handle_month_touch(app, x, y)
wait_for_touch_release()
elif app.screen == STATE_DAY:
# Check back button immediately (no drag needed)
if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H:
app.screen = STATE_MONTH
draw_month_view(app)
wait_for_touch_release()
continue
dragged = handle_vertical_drag(
app,
y,
lambda: app.day.scroll_offset,
lambda value: setattr(app.day, "scroll_offset", value),
lambda: _max_scroll_offset(app),
lambda: draw_day_view(app),
True
)
if not dragged:
# Check for record row tap -> detail view
if not app.day.error and app.day.records:
rec_idx = touch_to_record_index(app, y)
if rec_idx is not None:
open_record(app, STATE_DAY, rec_idx)
continue
# Otherwise handle as normal tap
handle_day_touch(app, x, y)
elif app.screen == STATE_RECORD:
# Check back button immediately (no drag needed)
if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H:
back_from_record(app)
wait_for_touch_release()
continue
dragged = handle_vertical_drag(
app,
y,
lambda: app.detail.scroll_offset,
lambda value: setattr(app.detail, "scroll_offset", value),
lambda: _max_detail_scroll_offset(app),
lambda: draw_record_detail(app),
True
)
if not dragged:
# Determine which record is being viewed
if app.detail.source_screen == STATE_SEARCH_RESULTS:
rec = app.search.results[app.detail.selected_index]
else:
rec = app.day.records[app.detail.selected_index]
# Check scrobble button tap
if _scrobble_button_hit_test(app, x, y, rec):
handle_scrobble_touch(app, rec)
# ============================================================================
# STARTUP
# ============================================================================
if os.environ.get("PRESTO_TEST_MODE") != "1":
main()
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