""" Elm-style Presto Music Library application. This is a standalone device entrypoint for the Pimoroni Presto. It retains the Music Library screens and API behavior from ``main.py``, while routing user input and blocking hardware work through messages and effects in the style of ``poc.py``. Deploy this file to the device as ``main.py``. """ # ============================================================================ # IMPORTS # ============================================================================ import gc 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 SCROLL_VIEWPORT_X = 0 SCROLL_VIEWPORT_Y = DAY_HEADER_Y + DAY_HEADER_H SCROLL_VIEWPORT_W = WIDTH SCROLL_VIEWPORT_H = HEIGHT - SCROLL_VIEWPORT_Y # Detail view DETAIL_COVER_SIZE = px(200) 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 KEYBOARD_DEBOUNCE_MS = 80 DRAG_REDRAW_MS = 40 DRAG_REDRAW_PX = px(8) # 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 LOOP_SLEEP_MS = 30 WIFI_RETRY_MS = 10_000 # 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_INPUT_X = KB_INPUT_MARGIN KB_INPUT_W = WIDTH - (2 * KB_INPUT_MARGIN) KB_INPUT_UPDATE_X = 0 KB_INPUT_UPDATE_Y = KB_INPUT_Y KB_INPUT_UPDATE_W = WIDTH KB_INPUT_UPDATE_H = KB_INPUT_H 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 STATE_STATUS = 6 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 self.consume_until_release = False self.gesture_screen = None self.start_x = 0 self.start_y = 0 self.last_y = 0 self.pending_delta = 0 self.dragged = False self.redrew_drag = False class Model: """Navigation and interaction state transitioned by ``update()``.""" def __init__(self): self.api_token = "" self.screen = STATE_HOME self.status_message = "Music Library\nStarting up..." self.next_wifi_retry_ms = 0 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() class Runtime: """Hardware polling state kept outside the application model.""" def __init__(self): self.touch_down = False # Compatibility name for direct renderer smoke tests. AppState = Model # Messages MSG_BOOT = 1 MSG_WIFI_CONNECTED = 2 MSG_WIFI_FAILED = 3 MSG_TIME_SYNCED = 4 MSG_WIFI_RETRY = 5 MSG_TOUCH_DOWN = 6 MSG_TOUCH_MOVE = 7 MSG_TOUCH_UP = 8 MSG_IDLE_TIMEOUT = 9 MSG_WAKE_COMPLETE = 10 MSG_DAY_LOADED = 11 MSG_SEARCH_LOADED = 12 MSG_DETAIL_READY = 13 MSG_SCROBBLED = 14 # Effects FX_RENDER = 1 FX_RENDER_PARTIAL = 2 FX_RENDER_QUERY = 3 FX_RENDER_SCROBBLE = 4 FX_CONNECT_WIFI = 5 FX_SYNC_TIME = 6 FX_LOAD_DAY = 7 FX_LOAD_SEARCH = 8 FX_PREPARE_DETAIL = 9 FX_SCROBBLE = 10 FX_SLEEP_DISPLAY = 11 FX_WAKE_DISPLAY = 12 FX_COLLECT_GARBAGE = 13 # ============================================================================ # 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: DISPLAY UPDATES # ============================================================================ def _display_update(): """Push the full display buffer to the screen.""" presto.update() def _partial_display_update(x, y, w, h): """Push a bounded display region, falling back to a full update.""" if w <= 0 or h <= 0: return try: presto.partial_update(x, y, w, h) except Exception: _display_update() def _clear_region(x, y, w, h): """Clear a bounded display region to the app background.""" display.set_pen(_pen_bg) display.rectangle(x, y, w, h) def _clear_scroll_viewport(): """Clear the scrollable content area below the fixed header.""" _clear_region(SCROLL_VIEWPORT_X, SCROLL_VIEWPORT_Y, SCROLL_VIEWPORT_W, SCROLL_VIEWPORT_H) def _partial_scroll_viewport_update(): """Push the scrollable content area below the fixed header.""" _partial_display_update(SCROLL_VIEWPORT_X, SCROLL_VIEWPORT_Y, SCROLL_VIEWPORT_W, SCROLL_VIEWPORT_H) # ============================================================================ # 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_effect(app): """Connect to WiFi and return ``(connected, detail, api_token)``.""" try: import secrets except ImportError: return False, "ERROR: secrets.py not found.\nCopy config.example.py to secrets.py", "" ssid = getattr(secrets, "WIFI_SSID", "") password = getattr(secrets, "WIFI_PASSWORD", "") api_token = getattr(secrets, "API_TOKEN", "") if not ssid: return False, "ERROR: WIFI_SSID not set in secrets.py", api_token if not api_token: return False, "ERROR: API_TOKEN not set in secrets.py", api_token wlan = network.WLAN(network.STA_IF) wlan.active(True) if wlan.isconnected(): return True, wlan.ifconfig()[0], api_token wlan.connect(ssid, password) elapsed = 0 while not wlan.isconnected() and elapsed < WIFI_TIMEOUT: time.sleep(0.5) elapsed += 0.5 if wlan.isconnected(): return True, wlan.ifconfig()[0], api_token return ( False, "WiFi connection failed.\nCheck credentials.\nRetrying in 10 seconds...", api_token, ) def sync_time_effect(): """Synchronise system time via NTP and return the available date.""" try: ntptime.settime() except Exception: pass return current_date() def current_date(): """Read the current calendar date from the system clock.""" lt = time.localtime() return lt[0], lt[1], 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_effect(): """Turn off the display backlight with a gradual fade.""" _fade_backlight(DISPLAY_BRIGHTNESS, DISPLAY_SLEEP_BRIGHTNESS) def wake_display_effect(app): """Restore backlight, refresh the date, and best-effort reconnect WiFi.""" _fade_backlight(DISPLAY_SLEEP_BRIGHTNESS, DISPLAY_BRIGHTNESS) if not wifi_connected(): connect_wifi_effect(app) return current_date() 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 # ============================================================================ # 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 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 # ============================================================================ # EFFECT DATA PREPARATION # ============================================================================ def load_day_effect(app, year, month, day): """Load and prepare a day list before it becomes visible.""" if not ensure_wifi_connected_effect(app): return MSG_DAY_LOADED, [], True, 0 recs, had_error = fetch_records(app, year, month, day) content_height = 0 if had_error else prepare_record_list(app, recs) return MSG_DAY_LOADED, recs, had_error, content_height def load_search_effect(app, query): """Load and prepare search results before they become visible.""" if not ensure_wifi_connected_effect(app): return MSG_SEARCH_LOADED, [], True, 0 recs, had_error = fetch_search_results(app, query) content_height = 0 if had_error else prepare_record_list(app, recs) return MSG_SEARCH_LOADED, recs, had_error, content_height def ensure_wifi_connected_effect(app): """Reconnect as part of request effects when the interface dropped.""" if wifi_connected(): return True connected, _detail, _api_token = connect_wifi_effect(app) return connected def selected_record(app): """Return the record selected for the detail screen.""" if app.detail.source_screen == STATE_SEARCH_RESULTS: return app.search.results[app.detail.selected_index] return app.day.records[app.detail.selected_index] def prepare_detail_effect(app): """Prepare detail layout and medium cover bytes outside rendering.""" rec = dict(selected_record(app)) content_height = _measure_detail_content(app, rec) cover_url = _record_detail_cover_url(rec) if cover_url and rec.get("_detail_thumb_data", None) is None: if not rec.get("_detail_thumb_failed", False): data = fetch_thumbnail(app, cover_url) if data is None: rec["_detail_thumb_failed"] = True else: rec["_detail_thumb_data"] = data return MSG_DETAIL_READY, content_height, rec def scrobble_effect(app, rec): """Post a scrobble request and return whether it succeeded.""" rec_id = rec.get("id") if not rec_id: return MSG_SCROBBLED, False url = API_BASE + "/api/v1/collection/" + str(rec_id) + "/scrobble" succeeded = False try: resp = urequests.post(url, headers=_auth_header(app)) succeeded = resp.status_code == 200 resp.close() except Exception: succeeded = False gc.collect() return MSG_SCROBBLED, succeeded 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, placeholder_w, placeholder_h): """Decode and draw an API-sized JPEG image at x, y. Uses jpegdec module (standard on Pimoroni firmware). Falls back to a placeholder rectangle on failure. """ if data is None: _draw_placeholder(x, y, placeholder_w, placeholder_h) return # Try jpegdec module. if _HAS_JPEGDEC: jpeg = None try: jpeg = _jpegdec_lib.JPEG(display) try: jpeg.open_RAM(memoryview(data)) except Exception: jpeg.open_RAM(data) try: jpeg.decode(x, y) except TypeError: # Older firmware expects a third full-size decode argument. jpeg.decode(x, y, 0) _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, placeholder_w, placeholder_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) _display_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) _display_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") _display_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() _draw_search_query_field(app) _draw_keyboard(app) _display_update() def _draw_search_query_field(app): """Draw the search query field without touching the keyboard.""" _clear_region(KB_INPUT_UPDATE_X, KB_INPUT_UPDATE_Y, KB_INPUT_UPDATE_W, KB_INPUT_UPDATE_H) display.set_pen(_pen_cell_bg) display.rectangle(KB_INPUT_X, KB_INPUT_Y, KB_INPUT_W, KB_INPUT_H) display.set_pen(_pen_header_text) display.set_font("bitmap8") display_q = app.search.query if app.search.query else "_" display.text( display_q, KB_INPUT_X + px(8), KB_INPUT_Y + px(12), scale=TEXT_SCALE ) def _redraw_search_query_field(app): """Redraw and push only the search query field row.""" _draw_search_query_field(app) _partial_display_update(KB_INPUT_UPDATE_X, KB_INPUT_UPDATE_Y, KB_INPUT_UPDATE_W, KB_INPUT_UPDATE_H) 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) _partial_display_update(kx, ky, kw, kh) time.sleep(0.05) # ============================================================================ # DRAWING: SEARCH RESULTS # ============================================================================ def draw_search_results(app, partial=False): """Render the search results view, reusing record-list rendering.""" if partial: _clear_scroll_viewport() else: display.set_pen(_pen_bg) display.clear() _draw_search_results_header(app) if app.search.error: _draw_search_error() if partial: _partial_scroll_viewport_update() else: _display_update() return if not app.search.results: _draw_search_empty() if partial: _partial_scroll_viewport_update() else: _display_update() return _set_clip_below_header() _draw_search_record_list(app) _remove_clip() if partial: _partial_scroll_viewport_update() else: _display_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: " — 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") arrow_w = display.measure_text("^", scale=TEXT_SCALE) display.text("^", (WIDTH - arrow_w) // 2, DAY_HEADER_H + px(4), 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") arrow_w = display.measure_text("v", scale=TEXT_SCALE) display.text("v", (WIDTH - arrow_w) // 2, 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, partial=False): """Render the day view showing records for the selected date.""" if partial: _clear_scroll_viewport() else: display.set_pen(_pen_bg) display.clear() _draw_day_header(app) if app.day.error: _draw_day_error() if partial: _partial_scroll_viewport_update() else: _display_update() return if not app.day.records: _draw_day_empty() if partial: _partial_scroll_viewport_update() else: _display_update() return _set_clip_below_header() _draw_record_list(app) _remove_clip() if partial: _partial_scroll_viewport_update() else: _display_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") arrow_w = display.measure_text("^", scale=TEXT_SCALE) display.text("^", (WIDTH - arrow_w) // 2, DAY_HEADER_H + px(4), 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") arrow_w = display.measure_text("v", scale=TEXT_SCALE) display.text("v", (WIDTH - arrow_w) // 2, 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 _record_thumbnail_url(rec): _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 API-sized cover URL for a record row.""" return _record_cover_url(rec, "small") def _record_detail_cover_url(rec): """Return the API-sized cover URL for a record detail page.""" return _record_cover_url(rec, "medium") def _record_cover_url(rec, size): """Return a named cover URL from the API covers object.""" covers = rec.get("covers", {}) if not covers: return "" return covers.get(size, "") or "" 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 display caches and return scrollable detail content height.""" 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 return 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, partial=False): """Render the individual record detail view. Layout order: title, artists, large cover, genres, metadata, purchased at.""" if partial: _clear_scroll_viewport() else: 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] # The application prepares layout as an effect; direct smoke draws fall # back to preparing once and drag redraws only consume cached values. if app.detail.content_height == 0: app.detail.content_height = _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 if not partial: _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"): button_y = _detail_scrobble_button_y(app) # 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) arrow_w = display.measure_text("^", scale=TEXT_SCALE) display.text("^", (WIDTH - arrow_w) // 2, DAY_HEADER_H + px(4), scale=TEXT_SCALE) if offset < max_off: display.set_pen(_pen_arrow) arrow_w = display.measure_text("v", scale=TEXT_SCALE) display.text("v", (WIDTH - arrow_w) // 2, HEIGHT - px(24), scale=TEXT_SCALE) _remove_clip() if partial: _partial_scroll_viewport_update() else: _display_update() def _detail_scrobble_button_y(app): """Return the scrobble button Y position for the current detail offset.""" return (DETAIL_COVER_Y - app.detail.scroll_offset + app.detail.content_height - SCROBBLE_BUTTON_H) 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): """Draw already-prepared 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 if app.touch.dragging: _draw_placeholder(DETAIL_COVER_X, y, DETAIL_COVER_SIZE, DETAIL_COVER_SIZE) return data = rec.get("_detail_thumb_data", None) 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) def _redraw_scrobble_button(app, rec): """Redraw and push only the visible scrobble button region.""" if not rec.get("selected_release_id"): return if app.detail.content_height == 0: app.detail.content_height = _measure_detail_content(app, rec) button_y = _detail_scrobble_button_y(app) update_y = max(button_y, SCROLL_VIEWPORT_Y) update_bottom = min(button_y + SCROBBLE_BUTTON_H, HEIGHT) if update_bottom <= update_y: return bx = (WIDTH - SCROBBLE_BUTTON_W) // 2 _set_clip_below_header() _draw_scrobble_button(app, rec, button_y) _remove_clip() _partial_display_update(bx, update_y, SCROBBLE_BUTTON_W, update_bottom - update_y) # ============================================================================ # 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 _touch_debounce_ms(app): """Return the active debounce threshold for the current screen.""" if app.screen == STATE_SEARCH_INPUT: return KEYBOARD_DEBOUNCE_MS return DEBOUNCE_MS 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 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 # Detail content height already includes the button gap and height. button_y = _detail_scrobble_button_y(app) bx = (WIDTH - SCROBBLE_BUTTON_W) // 2 return (bx <= x <= bx + SCROBBLE_BUTTON_W and button_y <= y <= button_y + SCROBBLE_BUTTON_H) # ============================================================================ # UPDATE # ============================================================================ def update(app, msg): """Apply a message to the model and return effect commands.""" tag = msg[0] if tag == MSG_BOOT: app.screen = STATE_STATUS app.status_message = "Music Library\nStarting up..." return [(FX_RENDER,), (FX_CONNECT_WIFI,)] if tag == MSG_WIFI_CONNECTED: app.api_token = msg[2] app.next_wifi_retry_ms = 0 app.status_message = "Connected.\nIP: {}\nSyncing time...".format(msg[1]) return [(FX_RENDER,), (FX_SYNC_TIME,), (FX_COLLECT_GARBAGE,)] if tag == MSG_WIFI_FAILED: app.api_token = msg[2] app.screen = STATE_STATUS app.status_message = msg[1] app.next_wifi_retry_ms = time.ticks_add(time.ticks_ms(), WIFI_RETRY_MS) return [(FX_RENDER,), (FX_COLLECT_GARBAGE,)] if tag == MSG_WIFI_RETRY: app.next_wifi_retry_ms = 0 app.status_message = "Connecting to WiFi..." return [(FX_RENDER,), (FX_CONNECT_WIFI,)] if tag == MSG_TIME_SYNCED: app.today_year, app.today_month, app.today_day = msg[1], msg[2], msg[3] app.view_year = app.today_year app.view_month = app.today_month app.day.selected_day = app.today_day app.day.error = False app.day.scroll_offset = 0 app.screen = STATE_HOME app.touch.last_activity = time.ticks_ms() return [(FX_RENDER,)] if tag == MSG_IDLE_TIMEOUT: if not app.touch.display_awake: return [] app.touch.display_awake = False return [(FX_SLEEP_DISPLAY,)] if tag == MSG_WAKE_COMPLETE: app.today_year, app.today_month, app.today_day = msg[1], msg[2], msg[3] return [(FX_RENDER,)] if tag == MSG_DAY_LOADED: app.day.records = msg[1] app.day.error = msg[2] app.day.content_height = msg[3] app.day.scroll_offset = 0 app.screen = STATE_DAY return [(FX_RENDER,)] if tag == MSG_SEARCH_LOADED: app.search.results = msg[1] app.search.error = msg[2] app.search.content_height = msg[3] app.search.scroll_offset = 0 app.screen = STATE_SEARCH_RESULTS return [(FX_RENDER,)] if tag == MSG_DETAIL_READY: if app.detail.source_screen == STATE_SEARCH_RESULTS: app.search.results[app.detail.selected_index] = msg[2] else: app.day.records[app.detail.selected_index] = msg[2] app.detail.content_height = msg[1] app.screen = STATE_RECORD return [(FX_RENDER,)] if tag == MSG_SCROBBLED: app.detail.scrobble_state = "done" if msg[1] else "idle" return [(FX_RENDER_SCROBBLE,)] if tag == MSG_TOUCH_DOWN: return touch_down_update(app, msg[1], msg[2], msg[3]) if tag == MSG_TOUCH_MOVE: return touch_move_update(app, msg[1], msg[2]) if tag == MSG_TOUCH_UP: return touch_up_update(app) return [] def touch_down_update(app, x, y, now): """Start a touch gesture or consume the wake touch.""" if not app.touch.display_awake: app.touch.display_awake = True app.touch.consume_until_release = True app.touch.last_activity = now app.touch.last_touch = now return [(FX_WAKE_DISPLAY,)] if time.ticks_diff(now, app.touch.last_touch) < _touch_debounce_ms(app): app.touch.consume_until_release = True return [] app.touch.last_touch = now app.touch.last_activity = now app.touch.consume_until_release = False app.touch.gesture_screen = None if scrollable_screen(app.screen): app.touch.gesture_screen = app.screen app.touch.start_x = x app.touch.start_y = y app.touch.last_y = y app.touch.pending_delta = 0 app.touch.dragged = False app.touch.redrew_drag = False app.touch.dragging = False app.touch.last_drag_redraw = now return [] return tap_update(app, x, y) def touch_move_update(app, y, now): """Update a scroll gesture while retaining redraw throttling.""" if app.touch.consume_until_release or app.touch.gesture_screen is None: return [] if abs(y - app.touch.start_y) >= DRAG_REDRAW_PX: app.touch.dragged = True app.touch.pending_delta += app.touch.last_y - y app.touch.last_y = y redraw_due = time.ticks_diff(now, app.touch.last_drag_redraw) >= DRAG_REDRAW_MS if abs(app.touch.pending_delta) < DRAG_REDRAW_PX or not redraw_due: return [] changed = apply_scroll_delta(app, app.touch.gesture_screen, app.touch.pending_delta) app.touch.pending_delta = 0 app.touch.last_drag_redraw = now if not changed: return [] app.touch.dragging = True app.touch.redrew_drag = True return [(FX_RENDER_PARTIAL,)] def touch_up_update(app): """Complete a gesture, issuing a tap or final scroll redraw.""" if app.touch.consume_until_release: app.touch.consume_until_release = False app.touch.gesture_screen = None return [] gesture_screen = app.touch.gesture_screen if gesture_screen is None: return [] x, y = app.touch.start_x, app.touch.start_y if app.touch.dragged: changed = apply_scroll_delta(app, gesture_screen, app.touch.pending_delta) redrew_drag = app.touch.redrew_drag reset_gesture(app) if changed or redrew_drag: return [(FX_RENDER_PARTIAL,)] return [] reset_gesture(app) if app.screen != gesture_screen: return [] return tap_update(app, x, y) def reset_gesture(app): """Clear state owned by an in-progress scroll gesture.""" app.touch.gesture_screen = None app.touch.pending_delta = 0 app.touch.dragged = False app.touch.redrew_drag = False app.touch.dragging = False def scrollable_screen(screen): """Return whether a view distinguishes vertical drag from row taps.""" return screen in (STATE_DAY, STATE_SEARCH_RESULTS, STATE_RECORD) def scroll_offset(app, screen): if screen == STATE_DAY: return app.day.scroll_offset if screen == STATE_SEARCH_RESULTS: return app.search.scroll_offset return app.detail.scroll_offset def max_scroll_offset(app, screen): if screen == STATE_DAY: return _max_scroll_offset(app) if screen == STATE_SEARCH_RESULTS: return _search_max_scroll_offset(app) return _max_detail_scroll_offset(app) def set_scroll_offset(app, screen, offset): if screen == STATE_DAY: app.day.scroll_offset = offset elif screen == STATE_SEARCH_RESULTS: app.search.scroll_offset = offset else: app.detail.scroll_offset = offset def apply_scroll_delta(app, screen, delta): """Clamp and apply one prepared scroll delta.""" old_offset = scroll_offset(app, screen) new_offset = min(max(0, old_offset + delta), max_scroll_offset(app, screen)) if new_offset == old_offset: return False set_scroll_offset(app, screen, new_offset) return True def tap_update(app, x, y): """Handle one accepted tap by changing model state and returning effects.""" if app.screen == STATE_HOME: return home_tap_update(app, x, y) if app.screen == STATE_SEARCH_INPUT: return search_input_tap_update(app, x, y) if app.screen == STATE_SEARCH_RESULTS: return search_results_tap_update(app, x, y) if app.screen == STATE_MONTH: return month_tap_update(app, x, y) if app.screen == STATE_DAY: return day_tap_update(app, x, y) if app.screen == STATE_RECORD: return record_tap_update(app, x, y) return [] def home_tap_update(app, x, y): 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 = "" app.search.keyboard_mode = "alpha" app.screen = STATE_SEARCH_INPUT return [(FX_RENDER,)] if (HOME_BUTTON_X <= x <= HOME_BUTTON_X + HOME_BUTTON_W and HOME_BUTTON2_Y <= y <= HOME_BUTTON2_Y + HOME_BUTTON_H): app.view_year = app.today_year app.view_month = app.today_month app.day.selected_day = app.today_day app.screen = STATE_MONTH return [(FX_RENDER,)] return [] def search_input_tap_update(app, x, y): if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H: app.screen = STATE_HOME return [(FX_RENDER,)] action = _keyboard_hit_test(app, x, y) if action is None: return [] if action == "toggle": app.search.keyboard_mode = ( "numbers" if app.search.keyboard_mode == "alpha" else "alpha" ) return [(FX_RENDER,)] if action == "space": if len(app.search.query) < 50: app.search.query += " " return [(FX_RENDER_QUERY,)] return [] if action == "backspace": app.search.query = app.search.query[:-1] return [(FX_RENDER_QUERY,)] if action == "ok": if not app.search.query.strip(): return [] app.screen = STATE_STATUS app.status_message = "Searching for:\n" + app.search.query return [(FX_RENDER,), (FX_LOAD_SEARCH, app.search.query)] if len(app.search.query) < 50 and len(action) == 1: app.search.query += action return [(FX_RENDER_QUERY,)] return [] def search_results_tap_update(app, x, y): if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H: app.screen = STATE_SEARCH_INPUT return [(FX_RENDER,)] if app.search.error: app.screen = STATE_STATUS app.status_message = "Retrying search..." return [(FX_RENDER,), (FX_LOAD_SEARCH, app.search.query)] if app.search.results: index = touch_to_record_index( app, y, recs=app.search.results, offset=app.search.scroll_offset ) if index is not None: return open_record_update(app, STATE_SEARCH_RESULTS, index) return [] def month_tap_update(app, x, y): hx, hy = HEADER_SIDE_MARGIN, HOME_BTN_Y if hx <= x <= hx + HOME_BTN_W and hy <= y <= hy + HOME_BTN_H: app.screen = STATE_HOME return [(FX_RENDER,)] lx = HEADER_SIDE_MARGIN + HOME_BTN_W + px(4) if lx <= x <= lx + ARROW_W and HEADER_BUTTON_Y <= y <= HEADER_BUTTON_Y + ARROW_H: app.view_year, app.view_month = previous_month(app.view_year, app.view_month) return [(FX_RENDER,)] rx = WIDTH - ARROW_W - HEADER_SIDE_MARGIN if rx <= x <= rx + ARROW_W and HEADER_BUTTON_Y <= y <= HEADER_BUTTON_Y + ARROW_H: app.view_year, app.view_month = next_month(app.view_year, app.view_month) return [(FX_RENDER,)] cell = touch_to_calendar_cell(x, y) if cell is None: return [] day_num = cell_to_day(app, cell[0], cell[1]) if day_num is None: return [] 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_STATUS app.status_message = "Loading records for\n{} {}, {}...".format( MONTH_NAMES[app.view_month - 1], day_num, app.view_year ) return [ (FX_RENDER,), (FX_LOAD_DAY, app.view_year, app.view_month, day_num), ] def day_tap_update(app, x, y): if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H: app.screen = STATE_MONTH return [(FX_RENDER,)] if app.day.error: app.screen = STATE_STATUS app.status_message = "Retrying..." return [ (FX_RENDER,), (FX_LOAD_DAY, app.view_year, app.view_month, app.day.selected_day), ] if app.day.records: index = touch_to_record_index(app, y) if index is not None: return open_record_update(app, STATE_DAY, index) return [] def record_tap_update(app, x, y): if BACK_X <= x <= BACK_X + BACK_W and BACK_Y <= y <= BACK_Y + BACK_H: 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 app.screen = STATE_SEARCH_RESULTS if source_screen == STATE_SEARCH_RESULTS else STATE_DAY return [(FX_RENDER,)] rec = selected_record(app) if _scrobble_button_hit_test(app, x, y, rec): app.detail.scrobble_state = "loading" return [(FX_RENDER_SCROBBLE,), (FX_SCROBBLE, rec)] return [] def open_record_update(app, source_screen, index): """Select a record and request effectful detail preparation.""" app.detail.selected_index = index app.detail.source_screen = source_screen app.detail.scroll_offset = 0 app.detail.content_height = 0 app.detail.scrobble_state = "idle" app.screen = STATE_STATUS app.status_message = "Loading record..." return [(FX_RENDER,), (FX_PREPARE_DETAIL,)] # ============================================================================ # EVENT WIRING AND EFFECT RUNNER # ============================================================================ def wire_events(runtime, app): """Convert polling and elapsed time into application messages.""" now = time.ticks_ms() messages = [] if (app.touch.display_awake and app.touch.last_activity and time.ticks_diff(now, app.touch.last_activity) >= DISPLAY_SLEEP_MS): messages.append((MSG_IDLE_TIMEOUT,)) if (app.next_wifi_retry_ms and time.ticks_diff(now, app.next_wifi_retry_ms) >= 0): messages.append((MSG_WIFI_RETRY,)) point = read_touch() if point is None: if runtime.touch_down: runtime.touch_down = False messages.append((MSG_TOUCH_UP,)) elif not runtime.touch_down: runtime.touch_down = True messages.append((MSG_TOUCH_DOWN, point[0], point[1], now)) else: messages.append((MSG_TOUCH_MOVE, point[1], now)) return messages def dispatch(app, first_msg): """Process queued messages and enqueue effect results.""" messages = [first_msg] index = 0 while index < len(messages): commands = update(app, messages[index]) index += 1 for command in commands: follow_up = run_effect(app, command) if follow_up: messages.append(follow_up) def run_effect(app, command): """Execute hardware/network commands and return any resulting message.""" kind = command[0] if kind == FX_RENDER: render(app) elif kind == FX_RENDER_PARTIAL: render(app, partial=True) elif kind == FX_RENDER_QUERY: _redraw_search_query_field(app) elif kind == FX_RENDER_SCROBBLE: _redraw_scrobble_button(app, selected_record(app)) elif kind == FX_CONNECT_WIFI: connected, detail, api_token = connect_wifi_effect(app) if connected: return MSG_WIFI_CONNECTED, detail, api_token return MSG_WIFI_FAILED, detail, api_token elif kind == FX_SYNC_TIME: date = sync_time_effect() return MSG_TIME_SYNCED, date[0], date[1], date[2] elif kind == FX_LOAD_DAY: return load_day_effect(app, command[1], command[2], command[3]) elif kind == FX_LOAD_SEARCH: return load_search_effect(app, command[1]) elif kind == FX_PREPARE_DETAIL: return prepare_detail_effect(app) elif kind == FX_SCROBBLE: return scrobble_effect(app, command[1]) elif kind == FX_SLEEP_DISPLAY: sleep_display_effect() elif kind == FX_WAKE_DISPLAY: date = wake_display_effect(app) return MSG_WAKE_COMPLETE, date[0], date[1], date[2] elif kind == FX_COLLECT_GARBAGE: gc.collect() return None # ============================================================================ # RENDER # ============================================================================ def render(app, partial=False): """Render only the current model state; effects prepare external data.""" if app.screen == STATE_STATUS: draw_status(app.status_message) elif 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, partial=partial) elif app.screen == STATE_RECORD: draw_record_detail(app, partial=partial) elif app.screen == STATE_SEARCH_INPUT: draw_search_input(app) elif app.screen == STATE_SEARCH_RESULTS: draw_search_results(app, partial=partial) # ============================================================================ # 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(): """Initialise the runtime, then continuously dispatch wired messages.""" init_display() try: presto.set_backlight(DISPLAY_BRIGHTNESS) except Exception: pass app = Model() runtime = Runtime() dispatch(app, (MSG_BOOT,)) while True: for msg in wire_events(runtime, app): dispatch(app, msg) time.sleep(LOOP_SLEEP_MS / 1000.0) # ============================================================================ # STARTUP # ============================================================================ if __name__ == "__main__": main()