btn.py

# simpletest - cursor control
from micropython import const
import digitalio
import board
import time
from gamepadshift import GamePadShift
from adafruit_bitmap_font import bitmap_font
from adafruit_button import Button
import os
import displayio

import adafruit_cursor



# PyBadge Button Masks
BUTTON_LEFT = const(128)
BUTTON_UP = const(64)
BUTTON_DOWN = const(32)
BUTTON_RIGHT = const(16)
BUTTON_SEL = const(8)
BUTTON_START = const(4)
BUTTON_A = const(2)
BUTTON_B = const(1)

pad = GamePadShift(digitalio.DigitalInOut(board.BUTTON_CLOCK),
                   digitalio.DigitalInOut(board.BUTTON_OUT),
                   digitalio.DigitalInOut(board.BUTTON_LATCH))

display = board.DISPLAY
splash_grp = displayio.Group(max_size=20)


###### BUTTON CONFIG ######

# the current working directory (where this file is)
cwd = ("/"+__file__).rsplit('/', 1)[0]
fonts = [file for file in os.listdir(cwd+"/fonts/")
         if (file.endswith(".bdf") and not file.startswith("._"))]
for i, filename in enumerate(fonts):
    fonts[i] = cwd+"/fonts/"+filename
THE_FONT = "/fonts/Arial-12.bdf"
DISPLAY_STRING = "Button Text"

# Make the display context
BUTTON_WIDTH = 80
BUTTON_HEIGHT = 40
BUTTON_MARGIN = 20


# Load the font
font = bitmap_font.load_font(THE_FONT)

buttons = []
# Default button styling:
button_0 = Button(x=BUTTON_MARGIN, y=BUTTON_MARGIN,
                  width=BUTTON_WIDTH, height=BUTTON_HEIGHT,
                  label="btn0", label_font=font)
buttons.append(button_0)

for b in buttons:
    splash_grp.append(b.group)

############
# Cursor Configuration
cursor_data = {
    'cursor_path': '/cursor_delta.bmp',
    'cursor_scale': 2,
    'cursor_width' : 1,
    'cursor_height' : 1,
    'cursor_tile_width' : 16,
    'cursor_tile_height' : 16,
}
display = board.DISPLAY
mouse_cursor = adafruit_cursor.Cursor(display, display_group = splash_grp,
                                        cursor = cursor_data)
mouse_cursor.speed = 15
##############

# show displayio group
display.show(splash_grp)

def check_buttons(pad_btns):
    if (pad_btns & BUTTON_RIGHT) > 0:
        mouse_cursor.x += mouse_cursor.speed
    elif (pad_btns & BUTTON_LEFT) > 0:
        mouse_cursor.x -= mouse_cursor.speed
    elif (pad_btns & BUTTON_UP) > 0:
        mouse_cursor.y -= mouse_cursor.speed
    elif (pad_btns & BUTTON_DOWN) > 0:
        mouse_cursor.y += mouse_cursor.speed
    elif (pad_btns & BUTTON_B) > 0:
        if mouse_cursor.is_hidden == True:
            print('showing cursor!')
            mouse_cursor.show()
        else:
            print('hiding cursor!')
            mouse_cursor.hide()


current_btns = pad.get_pressed()
last_read = 0
while True:
    # check the current location of the cursor
    # p = mouse_cursor.x, mouse_cursor.y
    if (last_read + 0.00001) < time.monotonic():
        btns = pad.get_pressed()
        last_read = time.monotonic()
    if current_btns != btns:
        check_buttons(btns)
        current_btns = btns
    """
    # handle button presses
    if p:
        for i, b in enumerate(buttons):
            if b.contains(p) and (pad_btns&BUTTON_A > 0):
                print("Button %d pressed"%i)
                b.selected = True
            else:
                b.selected = False
    """