apps: demo: Move the demo code into a fully fledged application

1 files changed, 72 insertions, 0 deletions

diff --git a/wasp/apps/demo.py b/wasp/apps/demo.py
new file mode 100644
index 0000000..e71cfbe
--- /dev/null
+++ b/wasp/apps/demo.py
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: LGPL-3.0-or-later
+# Copyright (C) 2020 Daniel Thompson
+
+"""Logo demo for PineTime
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This demo is simply an alternating sweep of the Pine64 and
+MicroPython logos. It cycles through a variety of colours
+and swaps between the logos every 5 images (so if you change
+anything make sure len(colors) is not a multiple of 5).
+"""
+
+import wasp
+import logo
+import icons
+
+colors = (
+        0xffff,
+        0xf800, # red
+        0xffff,
+        0xffe0, # yellow
+        0xffff,
+        0x07e0, # green
+        0xffff,
+        0x07ff, # cyan
+        0xffff,
+        0x001f, # blue
+        0xffff,
+        0xf81f, # magenta
+    )
+
+class DemoApp():
+    """Application for live demos.
+
+    Start this to give the watch something "interesting" to do when talking
+    over demos!
+    """
+    NAME = 'Demo'
+    ICON = icons.app
+
+    def __init__(self):
+        self._logo = logo.pine64
+        self._color = 0
+        self._i = 0
+
+    def foreground(self):
+        """Draw the first frame and establish the tick."""
+        self._draw()
+        wasp.system.request_tick(2000)
+
+    def tick(self, ticks):
+        """Handle the tick."""
+        self._draw()
+        wasp.system.keep_awake()
+
+    def _draw(self):
+        """Draw the next frame."""
+        draw = wasp.watch.drawable
+
+        if self._i < 5:
+            self._i += 1
+        else:
+            self._i = 0
+            if self._logo == logo.pine64:
+                self._logo = logo.micropython
+            else:
+                self._logo = logo.pine64
+            draw.fill()
+        draw.rleblit(self._logo, fg=colors[self._color])
+        self._color += 1
+        if self._color >= len(colors):
+            self._color = 0