Use new FB metods. Requires MP>=V1.20

gui/core/ugui.py

@@ -11,10 +11,14 @@ import uasyncio as asyncio
 from time import ticks_diff, ticks_ms
 import gc
 from array import array
+import sys
 
 from gui.core.colors import *
 from gui.primitives import Pushbutton
 
+if sys.implementation.version < (1, 20, 0):
+    raise OSError("Firmware V1.20 or later required.")
+
 # Globally available singleton objects
 display = None  # Singleton instance
 ssd = None
@@ -121,25 +125,29 @@ class Input:
 class DisplayIP:
     # Populate array for clipped rect
     @staticmethod
-    def crect(x, y, w, h, acr = array("H", (0 for _ in range(16)))):
+    def crect(x, y, w, h):
         c = 4  # Clip pixels
-        acr[0] = x + c
-        acr[1] = y
-        acr[2] = x + w - c
-        acr[3] = y
-        acr[4] = x + w
-        acr[5] = y + c
-        acr[6] = x + w
-        acr[7] = y + h - c
-        acr[8] = x + w - c
-        acr[9] = y + h
-        acr[10] = x + c
-        acr[11] = y + h
-        acr[12] = x
-        acr[13] = y + h - c
-        acr[14] = x
-        acr[15] = y + c
-        return acr
+        return array(
+            "H",
+            (
+                x + c,
+                y,
+                x + w - c,
+                y,
+                x + w,
+                y + c,
+                x + w,
+                y + h - c,
+                x + w - c,
+                y + h,
+                x + c,
+                y + h,
+                x,
+                y + h - c,
+                x,
+                y + c,
+            ),
+        )
 
     def __init__(self, ipdev):
         self.ipdev = ipdev
@@ -167,11 +175,9 @@ class DisplayIP:
     # Greying out has only one option given limitation of 4-bit display driver
     # It would be possible to do better with RGB565 but would need inverse transformation
     # to (r, g, b), scale and re-convert to integer.
-    def _getcolor(self, color):  
+    def _getcolor(self, color):
         # Takes in an integer color, bit size dependent on driver
-        return (
-            color_map[GREY_OUT] if self._is_grey and color != color_map[BG] else color
-        )
+        return color_map[GREY_OUT] if self._is_grey and color != color_map[BG] else color
 
     def usegrey(self, val):  # display.usegrey(True) sets greyed-out
         self._is_grey = val
@@ -216,8 +222,9 @@ class DisplayIP:
 
 # Define an input device and populate global ssd and display objects.
 class Display(DisplayIP):
-    def __init__(self, objssd, nxt, sel, prev=None, incr=None, decr=None,
-                 encoder=False, touch=False):
+    def __init__(
+        self, objssd, nxt, sel, prev=None, incr=None, decr=None, encoder=False, touch=False
+    ):
         global display, ssd
         ssd = objssd
         if touch:
@@ -390,9 +397,7 @@ class Screen:
         self.width = ssd.width
         self.row = 0
         self.col = 0
-        if (
-            Screen.current_screen is None and Screen.do_gc
-        ):  # Initialising class and task
+        if Screen.current_screen is None and Screen.do_gc:  # Initialising class and task
             # Here we create singleton tasks
             asyncio.create_task(self._garbage_collect())
         Screen.current_screen = self
@@ -510,8 +515,8 @@ class Screen:
 # Very basic window class. Cuts a rectangular hole in a screen on which
 # content may be drawn.
 class Window(Screen):
-
     _value = None
+
     # Allow a Window to store an arbitrary object. Retrieval may be
     # done by caller, after the Window instance was deleted
     @classmethod
@@ -656,9 +661,7 @@ class Widget:
         if hasattr(self, "label"):
             self.label.value(text, invert, fgcolor, bgcolor, bdcolor)
         else:
-            raise ValueError(
-                "Method {}.text does not exist.".format(self.__class__.__name__)
-            )
+            raise ValueError("Method {}.text does not exist.".format(self.__class__.__name__))
 
     # Called from subclass prior to populating framebuf with control
     def show(self, black=True):
@@ -672,9 +675,7 @@ class Widget:
             dev = display.usegrey(self._greyed_out)
             x = self.col
             y = self.row
-            dev.fill_rect(
-                x, y, self.width, self.height, color_map[BG] if black else self.bgcolor
-            )
+            dev.fill_rect(x, y, self.width, self.height, color_map[BG] if black else self.bgcolor)
         return True
 
     # Called by Screen.show(). Draw background and bounding box if required.
@@ -777,9 +778,7 @@ class LinearIO(Widget):
     ):
         self.min_delta = min_delta
         self.max_delta = max_delta
-        super().__init__(
-            writer, row, col, height, width, fgcolor, bgcolor, bdcolor, value, active
-        )
+        super().__init__(writer, row, col, height, width, fgcolor, bgcolor, bdcolor, value, active)
         self.adjustable = True  # Can show adjustable border
         self.do_precision = prcolor is not False
         if self.do_precision:
@@ -794,9 +793,7 @@ class LinearIO(Widget):
 
     # Handle increase and decrease buttons. Redefined by textbox.py, scale_log.py
     async def btnhan(self, button, up, d):
-        maxd = (
-            self.max_delta if self.precision() else d * 4
-        )  # Why move fast in precision mode?
+        maxd = self.max_delta if self.precision() else d * 4  # Why move fast in precision mode?
         t = ticks_ms()
         while button():
             await asyncio.sleep_ms(0)  # Quit fast on button release