From 92e087fbffe2b6171282fabe5f61b2f8607dcdd6 Mon Sep 17 00:00:00 2001
From: Joe Freeman <joe@freemansoft.com>
Date: Mon, 13 Feb 2023 06:38:26 -0500
Subject: [PATCH] add pallete BoolPalette to support color on monochrome

---
 drivers/sh1106/sh1106.py | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/sh1106/sh1106.py b/drivers/sh1106/sh1106.py
index 57dacce..b4bc015 100644
--- a/drivers/sh1106/sh1106.py
+++ b/drivers/sh1106/sh1106.py
@@ -75,6 +75,7 @@
 from micropython import const
 import utime as time
 import framebuf
+from drivers.boolpalette import BoolPalette
 
 
 # a few register definitions
@@ -106,18 +107,19 @@ class SH1106(framebuf.FrameBuffer):
         self.pages_to_update = 0
 
         if self.rotate90:
+            # decouple renderbuf and displaybuf
             self.displaybuf = bytearray(self.bufsize)
             # HMSB is required to keep the bit order in the render buffer
             # compatible with byte-for-byte remapping to the display buffer,
             # which is in VLSB. Else we'd have to copy bit-by-bit!
-            super().__init__(
-                self.renderbuf, self.height, self.width, framebuf.MONO_HMSB
-            )
+            mode = framebuf.MONO_HMSB
+            self.palette = BoolPalette(mode)
+            super().__init__(self.renderbuf, self.height, self.width, mode)
         else:
             self.displaybuf = self.renderbuf
-            super().__init__(
-                self.renderbuf, self.width, self.height, framebuf.MONO_VLSB
-            )
+            mode = framebuf.MONO_VLSB
+            self.palette = BoolPalette(mode)
+            super().__init__(self.renderbuf, self.width, self.height, mode)
 
         # flip() was called rotate() once, provide backwards compatibility.
         self.rotate = self.flip