CMA Art Frame: initial commit

Author: cogliano

PyPortal_CMA_Art_Frame/background.bmp

@@ -0,0 +1,66 @@
+import time
+import random
+import board
+from adafruit_pyportal import PyPortal
+from adafruit_display_shapes.circle import Circle
+
+WIDTH = board.DISPLAY.width
+HEIGHT = board.DISPLAY.height
+
+#pylint: disable=line-too-long
+
+# these lines show the entire collection
+APIURL = "https://openaccess-api.clevelandart.org/api/artworks?cc0=1&has_image=1&indent=2&limit=1&skip="
+IMAGECOUNT = 31954
+
+# uncomment these lines to show just paintings
+# APIURL = "https://openaccess-api.clevelandart.org/api/artworks?cc0=1&has_image=1&indent=2&limit=1&type=Painting&skip="
+# IMAGECOUNT = 3223
+
+BACKGROUND_FILE = "/background.bmp"
+if WIDTH > 320:
+    BACKGROUND_FILE = "/background_480.bmp"
+
+pyportal = PyPortal(default_bg=BACKGROUND_FILE,
+                    image_json_path=["data", 0, "images", "web", "url"],
+                    image_dim_json_path=(["data", 0, "images", "web", "width"],
+                                         ["data", 0, "images", "web", "height"]),
+                    image_resize=(WIDTH, HEIGHT - 15),
+                    image_position=(0, 0),
+                    text_font="/fonts/OpenSans-9.bdf",
+                    json_path=["data", 0, "title"],
+                    text_position=(4, HEIGHT - 9),
+                    text_color=0xFFFFFF)
+
+circle = Circle(312, 233, 5, fill=0)
+pyportal.splash.append(circle)
+loopcount = 0
+errorcount = 0
+while True:
+    response = None
+    try:
+        circle.fill = 0xFF0000
+        itemid = random.randint(1, IMAGECOUNT)
+        # itemid = 20 # portrait mode example
+        # itemid = 21 # landscape mode example
+        print("retrieving url:", APIURL + str(itemid))
+        response = pyportal.fetch(APIURL + str(itemid))
+        circle.fill = 0
+        print("Response is", response)
+        loopcount = loopcount + 1
+
+    except (RuntimeError, KeyError) as e:
+        print("An error occured, retrying! -", e)
+        print("loop counter:", loopcount)
+        assert errorcount < 20, "Too many errors, stopping"
+        errorcount = errorcount + 1
+        time.sleep(60)
+        continue
+
+    errorcount = 0
+    stamp = time.monotonic()
+    # wait 5 minutes before getting again
+    while (time.monotonic() - stamp) < (5*60):
+        # or, if they touch the screen, fetch immediately!
+        if pyportal.touchscreen.touch_point:
+            break