Add type hints

adafruit_is31fl3741/__init__.py

@@ -29,6 +29,15 @@
 from adafruit_register.i2c_struct import ROUnaryStruct, UnaryStruct
 from adafruit_register.i2c_bit import RWBit
 
+try:
+    # Used only for typing
+    from typing import Optional, Tuple, Union  # pylint: disable=unused-import
+    from PIL.ImageFile import ImageFile
+    from adafruit_framebuf import FrameBuffer
+    import busio
+except ImportError:
+    pass
+
 __version__ = "0.0.0-auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_IS31FL3741.git"
 
@@ -77,7 +86,12 @@ class IS31FL3741:
     _shutdown_bit = RWBit(_IS3741_FUNCREG_CONFIG, 0)
     _pixel_buffer = None
 
-    def __init__(self, i2c, address=_IS3741_ADDR_DEFAULT, allocate=NO_BUFFER):
+    def __init__(
+        self,
+        i2c: busio.I2C,
+        address: int = _IS3741_ADDR_DEFAULT,
+        allocate: int = NO_BUFFER,
+    ):
         if allocate >= PREFER_BUFFER:
             try:
                 # Pixel buffer intentionally has an extra item at the start
@@ -95,16 +109,16 @@ def __init__(self, i2c, address=_IS3741_ADDR_DEFAULT, allocate=NO_BUFFER):
         self._page = None
         self.reset()
 
-    def reset(self):
+    def reset(self) -> None:
         """Reset"""
         self.page = 4
         self._reset_reg = 0xAE
 
-    def unlock(self):
+    def unlock(self) -> None:
         """Unlock"""
         self._lock_reg = 0xC5
 
-    def set_led_scaling(self, scale):
+    def set_led_scaling(self, scale: int) -> None:
         """Set scaling level for all LEDs.
 
         :param scale: Scaling level from 0 (off) to 255 (brightest).
@@ -119,34 +133,34 @@ def set_led_scaling(self, scale):
             i2c.write(scalebuf, end=172)  # 2nd page is smaller
 
     @property
-    def global_current(self):
+    def global_current(self) -> int:
         """Global current"""
         self.page = 4
         return self._gcurrent_reg
 
     @global_current.setter
-    def global_current(self, current):
+    def global_current(self, current: int) -> None:
         self.page = 4
         self._gcurrent_reg = current
 
     @property
-    def enable(self):
+    def enable(self) -> bool:
         """Enable"""
         self.page = 4
         return self._shutdown_bit
 
     @enable.setter
-    def enable(self, enable):
+    def enable(self, enable: bool) -> None:
         self.page = 4
         self._shutdown_bit = enable
 
     @property
-    def page(self):
+    def page(self) -> Union[int, None]:
         """Page"""
         return self._page
 
     @page.setter
-    def page(self, page_value):
+    def page(self, page_value: int) -> None:
         if page_value == self._page:
             return  # already set
         if page_value > 4:
@@ -155,7 +169,7 @@ def page(self, page_value):
         self.unlock()
         self._page_reg = page_value
 
-    def __getitem__(self, led):
+    def __getitem__(self, led: int) -> int:
         if not 0 <= led <= 350:
             raise ValueError("LED must be 0 ~ 350")
         if self._pixel_buffer:
@@ -173,7 +187,7 @@ def __getitem__(self, led):
             )
         return self._buf[1]
 
-    def __setitem__(self, led, pwm):
+    def __setitem__(self, led: int, pwm: int) -> None:
         if self._pixel_buffer:
             # Buffered version doesn't require range checks --
             # Python will throw its own IndexError/ValueError as needed.
@@ -195,7 +209,7 @@ def __setitem__(self, led, pwm):
         else:
             raise ValueError("LED must be 0 ~ 350")
 
-    def show(self):
+    def show(self) -> None:
         """Issue in-RAM pixel data to device. No effect if pixels are
         unbuffered.
         """
@@ -256,12 +270,12 @@ class IS31FL3741_colorXY(IS31FL3741):
     # pylint: disable-msg=too-many-arguments
     def __init__(
         self,
-        i2c,
-        width,
-        height,
-        address=_IS3741_ADDR_DEFAULT,
-        allocate=NO_BUFFER,
-        order=IS3741_BGR,
+        i2c: busio.I2C,
+        width: int,
+        height: int,
+        address: int = _IS3741_ADDR_DEFAULT,
+        allocate: int = NO_BUFFER,
+        order: int = IS3741_BGR,
     ):
         super().__init__(i2c, address=address, allocate=allocate)
         self.order = order
@@ -275,11 +289,11 @@ def __init__(
 
     # This function must be replaced for each board
     @staticmethod
-    def pixel_addrs(x, y):
+    def pixel_addrs(x: int, y: int) -> Tuple[int, ...]:
         """Calculate a device-specific LED offset for an X,Y 2D pixel."""
         raise NotImplementedError("Supported in subclasses only")
 
-    def fill(self, color=None):
+    def fill(self, color: Optional[int] = None) -> None:
         """Set all pixels to a given RGB color.
 
         :param color: Packed 24-bit color value (0xRRGGBB).
@@ -294,7 +308,7 @@ def fill(self, color=None):
                 self[addrs[self.g_offset]] = green
                 self[addrs[self.b_offset]] = blue
 
-    def pixel(self, x, y, color=None):
+    def pixel(self, x: int, y: int, color: Optional[int] = None) -> Union[int, None]:
         """
         Set or retrieve RGB color of pixel at position (X,Y).
 
@@ -321,7 +335,7 @@ def pixel(self, x, y, color=None):
                 )
         return None
 
-    def image(self, img):
+    def image(self, img: Union[FrameBuffer, ImageFile]) -> None:
         """Copy an in-memory image to the LED matrix. Image should be in
         24-bit format (e.g. "RGB888") and dimensions should match matrix,
         this isn't super robust yet or anything.

adafruit_is31fl3741/adafruit_ledglasses.py

@@ -29,6 +29,13 @@
 from adafruit_is31fl3741 import _IS3741_ADDR_DEFAULT, NO_BUFFER, IS3741_BGR
 from . import IS31FL3741_colorXY
 
+try:
+    # Used only for typing
+    from typing import Tuple, Any  # pylint: disable=unused-import
+    import busio
+except ImportError:
+    pass
+
 
 class Right_Ring:
     """The right eye ring of the LED glasses"""
@@ -60,21 +67,21 @@ class Right_Ring:
         b"\x01\x28\x00\x3C\x00\x3D"
     )
 
-    def __init__(self, is31_controller, order):
+    def __init__(self, is31_controller: IS31FL3741_colorXY, order: int):
         self._is31 = is31_controller
         self.r_offset = (order >> 4) & 3
         self.g_offset = (order >> 2) & 3
         self.b_offset = order & 3
 
-    def __setitem__(self, led, color):
+    def __setitem__(self, led: int, color: int) -> None:
         if not 0 <= led <= 23:
             raise ValueError("led must be 0~23")
         offset = unpack_from(">HHH", self.ledmap_bytes, led * 6)
         self._is31[offset[self.r_offset]] = (color >> 16) & 0xFF
         self._is31[offset[self.g_offset]] = (color >> 8) & 0xFF
         self._is31[offset[self.b_offset]] = color & 0xFF
 
-    def __getitem__(self, led):
+    def __getitem__(self, led: int) -> int:
         if not 0 <= led <= 23:
             raise ValueError("led must be 0~23")
         offset = unpack_from(">HHH", self.ledmap_bytes, led * 6)
@@ -84,7 +91,7 @@ def __getitem__(self, led):
             | self._is31[offset[self.b_offset]]
         )
 
-    def fill(self, color):
+    def fill(self, color: int) -> None:
         """Sets all LEDs in a ring to the same color.
 
         :param color: Packed RGB color (0xRRGGBB).
@@ -129,21 +136,21 @@ class Left_Ring:
         b"\x01\x5E\x00\xF0\x00\xF1"
     )
 
-    def __init__(self, is31_controller, order):
+    def __init__(self, is31_controller: IS31FL3741_colorXY, order: int):
         self._is31 = is31_controller
         self.r_offset = (order >> 4) & 3
         self.g_offset = (order >> 2) & 3
         self.b_offset = order & 3
 
-    def __setitem__(self, led, color):
+    def __setitem__(self, led: int, color: int) -> None:
         if not 0 <= led <= 23:
             raise ValueError("led must be 0~23")
         offset = unpack_from(">HHH", self.ledmap_bytes, led * 6)
         self._is31[offset[self.r_offset]] = (color >> 16) & 0xFF
         self._is31[offset[self.g_offset]] = (color >> 8) & 0xFF
         self._is31[offset[self.b_offset]] = color & 0xFF
 
-    def __getitem__(self, led):
+    def __getitem__(self, led: int) -> int:
         if not 0 <= led <= 23:
             raise ValueError("led must be 0~23")
         offset = unpack_from(">HHH", self.ledmap_bytes, led * 6)
@@ -153,7 +160,7 @@ def __getitem__(self, led):
             | self._is31[offset[self.b_offset]]
         )
 
-    def fill(self, color):
+    def fill(self, color: int) -> None:
         """Sets all LEDs in a ring to the same color.
 
         :param color: Packed RGB color (0xRRGGBB).
@@ -268,7 +275,11 @@ class LED_Glasses(IS31FL3741_colorXY):
     )
 
     def __init__(
-        self, i2c, address=_IS3741_ADDR_DEFAULT, allocate=NO_BUFFER, order=IS3741_BGR
+        self,
+        i2c: busio.I2C,
+        address: int = _IS3741_ADDR_DEFAULT,
+        allocate: int = NO_BUFFER,
+        order: int = IS3741_BGR,
     ):
         super().__init__(i2c, 18, 5, address=address, allocate=allocate, order=order)
 
@@ -281,5 +292,5 @@ def __init__(
         self.grid = self
 
     @staticmethod
-    def pixel_addrs(x, y):
+    def pixel_addrs(x: int, y: int) -> Tuple[Any, ...]:
         return unpack_from(">HHH", LED_Glasses.ledmap_bytes, ((x * 5) + y) * 6)

adafruit_is31fl3741/adafruit_rgbmatrixqt.py

@@ -27,19 +27,30 @@
 from adafruit_is31fl3741 import _IS3741_ADDR_DEFAULT, NO_BUFFER, IS3741_BGR
 from . import IS31FL3741_colorXY
 
+try:
+    # Used only for typing
+    from typing import Tuple
+    import busio
+except ImportError:
+    pass
+
 
 class Adafruit_RGBMatrixQT(IS31FL3741_colorXY):
     """Supports the Adafruit STEMMA QT IS31FL3741 RGB LED matrix."""
 
     rowmap = [8, 5, 4, 3, 2, 1, 0, 7, 6]
 
     def __init__(
-        self, i2c, address=_IS3741_ADDR_DEFAULT, allocate=NO_BUFFER, order=IS3741_BGR
+        self,
+        i2c: busio.I2C,
+        address: int = _IS3741_ADDR_DEFAULT,
+        allocate: int = NO_BUFFER,
+        order: int = IS3741_BGR,
     ):
         super().__init__(i2c, 13, 9, address=address, allocate=allocate, order=order)
 
     @staticmethod
-    def pixel_addrs(x, y):
+    def pixel_addrs(x: int, y: int) -> Tuple[int, int, int]:
         """Calulate the RGB offsets into the device array for x,y pixel"""
         y = Adafruit_RGBMatrixQT.rowmap[y]  # Reorder rows
 

adafruit_is31fl3741/issi_evb.py

@@ -30,17 +30,28 @@
 from adafruit_is31fl3741 import _IS3741_ADDR_DEFAULT, NO_BUFFER, IS3741_BGR
 from adafruit_is31fl3741 import IS31FL3741_colorXY
 
+try:
+    # Used only for typing
+    from typing import Tuple  # pylint: disable=unused-import
+    import busio
+except ImportError:
+    pass
+
 
 class ISSI_EVB(IS31FL3741_colorXY):
     """Supports the ISSI IS31FL3741 eval board"""
 
     def __init__(
-        self, i2c, address=_IS3741_ADDR_DEFAULT, allocate=NO_BUFFER, order=IS3741_BGR
+        self,
+        i2c: busio.I2C,
+        address: int = _IS3741_ADDR_DEFAULT,
+        allocate: int = NO_BUFFER,
+        order: int = IS3741_BGR,
     ):
         super().__init__(i2c, 9, 13, address=address, allocate=allocate, order=order)
 
     @staticmethod
-    def pixel_addrs(x, y):
+    def pixel_addrs(x: int, y: int) -> Tuple[int, int, int]:
         """Calulate the RGB offsets into the device array for x,y pixel"""
         if y > 2:
             offset = (x * 10 + 12 - y) * 3

requirements.txt

@@ -5,3 +5,4 @@
 Adafruit-Blinka
 adafruit-circuitpython-framebuf
 adafruit-circuitpython-register
+Pillow