1  # SPDX-FileCopyrightText: 2020 Dan Cogliano for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import time
 6  import random
 7  import board
 8  from adafruit_pyportal import PyPortal
 9  from adafruit_display_shapes.circle import Circle
10  
11  WIDTH = board.DISPLAY.width
12  HEIGHT = board.DISPLAY.height
13  
14  #pylint: disable=line-too-long
15  
16  # these lines show the entire collection
17  APIURL = "https://openaccess-api.clevelandart.org/api/artworks?cc0=1&has_image=1&indent=2&limit=1&skip="
18  IMAGECOUNT = 31954
19  
20  # uncomment these lines to show just paintings
21  # APIURL = "https://openaccess-api.clevelandart.org/api/artworks?cc0=1&has_image=1&indent=2&limit=1&type=Painting&skip="
22  # IMAGECOUNT = 3223
23  
24  BACKGROUND_FILE = "/background.bmp"
25  if WIDTH > 320:
26      BACKGROUND_FILE = "/background_480.bmp"
27  
28  pyportal = PyPortal(default_bg=BACKGROUND_FILE,
29                      image_json_path=["data", 0, "images", "web", "url"],
30                      image_dim_json_path=(["data", 0, "images", "web", "width"],
31                                           ["data", 0, "images", "web", "height"]),
32                      image_resize=(WIDTH, HEIGHT - 15),
33                      image_position=(0, 0),
34                      text_font="/fonts/OpenSans-9.bdf",
35                      json_path=["data", 0, "title"],
36                      text_position=(4, HEIGHT - 9),
37                      text_color=0xFFFFFF)
38  
39  circle = Circle(WIDTH - 8, HEIGHT - 7, 5, fill=0)
40  pyportal.splash.append(circle)
41  loopcount = 0
42  errorcount = 0
43  while True:
44      response = None
45      try:
46          circle.fill = 0xFF0000
47          itemid = random.randint(1, IMAGECOUNT)
48          # itemid = 20 # portrait mode example
49          # itemid = 21 # landscape mode example
50          print("retrieving url:", APIURL + str(itemid))
51          response = pyportal.fetch(APIURL + str(itemid))
52          circle.fill = 0
53          print("Response is", response)
54          loopcount = loopcount + 1
55  
56      except (RuntimeError, KeyError, TypeError) as e:
57          print("An error occured, retrying! -", e)
58          print("loop counter:", loopcount)
59          assert errorcount < 20, "Too many errors, stopping"
60          errorcount = errorcount + 1
61          time.sleep(60)
62          continue
63  
64      errorcount = 0
65      stamp = time.monotonic()
66      # wait 5 minutes before getting again
67      while (time.monotonic() - stamp) < (5*60):
68          # or, if they touch the screen, fetch immediately!
69          if pyportal.touchscreen.touch_point:
70              break