abstracting display, touch and sd

lib/Pico_ePaper_Code/pythonNanoGui/drivers/boolpalette.py

@@ -0,0 +1,20 @@
+# boolpalette.py Implement BoolPalette class
+# This is a 2-value color palette for rendering monochrome glyphs to color
+# FrameBuffer instances. Supports destinations with up to 16 bit color.
+
+# Copyright (c) Peter Hinch 2021
+# Released under the MIT license see LICENSE
+
+import framebuf
+
+class BoolPalette(framebuf.FrameBuffer):
+
+    def __init__(self, mode):
+        buf = bytearray(4)  # OK for <= 16 bit color
+        super().__init__(buf, 2, 1, mode)
+    
+    def fg(self, color):  # Set foreground color
+        self.pixel(1, 0, color)
+
+    def bg(self, color):
+        self.pixel(0, 0, color)