# SPDX-FileCopyrightText: 2022, 2024 Cedar Grove Maker Studios # SPDX-License-Identifier: MIT """ cedargrove_calculator.buttons.py 2024-03-11 v2.0 modified for 3.5-inch TFT Capacitive FeatherWing with Feather RP2040 ================================================= Calculator buttons class. * Author(s): JG for Cedar Grove Maker Studios """ import board import time import displayio from adafruit_bitmap_font import bitmap_font from adafruit_button import Button from simpleio import tone class Colors: BLACK = 0x000000 BLUE = 0x4040F0 GRAY = 0x202020 GRAY_DK = 0x101010 RED = 0xFF0000 WHITE = 0xC0C0C0 OUTLINE = GRAY_DK black_palette = displayio.Palette(1) black_palette[0] = BLACK gray_palette = displayio.Palette(1) gray_palette[0] = GRAY gray_dk_palette = displayio.Palette(1) gray_dk_palette[0] = GRAY_DK # (x, y), (width, height), name, fill_color, outline_color, pressed_color # object order: back to front HP_BUTTONS = [ (( 61, 123), (29, 22), "x^y", Colors.BLACK, Colors.OUTLINE), ((103, 123), (29, 22), "LOG", Colors.BLACK, Colors.OUTLINE), ((146, 123), (29, 22), "LN", Colors.BLACK, Colors.OUTLINE), ((187, 123), (29, 22), "e^x", Colors.BLACK, Colors.OUTLINE), ((230, 123), (29, 22), "CLR", Colors.BLUE, Colors.OUTLINE), (( 61, 167), (29, 22), "√x", Colors.BLACK, Colors.OUTLINE), ((103, 167), (29, 22), "ARC", Colors.BLACK, Colors.OUTLINE), ((146, 167), (29, 22), "SIN", Colors.BLACK, Colors.OUTLINE), ((187, 167), (29, 22), "COS", Colors.BLACK, Colors.OUTLINE), ((230, 167), (29, 22), "TAN", Colors.BLACK, Colors.OUTLINE), (( 61, 212), (29, 22), "1/x", Colors.BLACK, Colors.OUTLINE), ((103, 212), (29, 22), "x<>y", Colors.BLACK, Colors.OUTLINE), ((146, 212), (29, 22), "R", Colors.BLACK, Colors.OUTLINE), ((187, 212), (29, 22), "STO", Colors.BLACK, Colors.OUTLINE), ((230, 212), (29, 22), "RCL", Colors.BLACK, Colors.OUTLINE), (( 61, 257), (69, 22), "ENTER", Colors.BLUE, Colors.OUTLINE), ((146, 257), (29, 22), "CHS", Colors.BLUE, Colors.OUTLINE), ((187, 257), (29, 22), "EEX", Colors.BLUE, Colors.OUTLINE), ((230, 257), (29, 22), "CLX", Colors.BLUE, Colors.OUTLINE), (( 61, 301), (29, 22), "-", Colors.BLUE, Colors.OUTLINE), ((105, 301), (33, 22), "7", Colors.WHITE, Colors.OUTLINE), ((165, 301), (33, 22), "8", Colors.WHITE, Colors.OUTLINE), ((225, 301), (33, 22), "9", Colors.WHITE, Colors.OUTLINE), (( 61, 346), (22, 22), "+", Colors.BLUE, Colors.OUTLINE), ((105, 346), (33, 22), "4", Colors.WHITE, Colors.OUTLINE), ((165, 346), (33, 22), "5", Colors.WHITE, Colors.OUTLINE), ((225, 346), (33, 22), "6", Colors.WHITE, Colors.OUTLINE), (( 61, 391), (22, 22), "*", Colors.BLUE, Colors.OUTLINE), ((105, 391), (33, 22), "1", Colors.WHITE, Colors.OUTLINE), ((165, 391), (33, 22), "2", Colors.WHITE, Colors.OUTLINE), ((225, 391), (33, 22), "3", Colors.WHITE, Colors.OUTLINE), (( 61, 435), (22, 22), "÷", Colors.BLUE, Colors.OUTLINE), ((105, 435), (33, 22), "0", Colors.WHITE, Colors.OUTLINE), ((165, 435), (33, 22), ".", Colors.WHITE, Colors.OUTLINE), ((225, 435), (33, 22), "π", Colors.WHITE, Colors.OUTLINE), ] class CalculatorButtons(displayio.Group): def __init__(self, l_margin=0, timeout=1.0, click=True, display=None, touch=None): """Instantiate on-screen buttons and build button_group.""" self._timeout = timeout self._click = click self._l_margin = l_margin self.ts = touch WIDTH = display.width HEIGHT = display.height SIZE_FACTOR = 1.2 # Create a list of button names for button creation self._button_names = [name[2] for name in HP_BUTTONS] self.FONT_0 = bitmap_font.load_font("/fonts/OpenSans-9.bdf") # Build displayio button group self._buttons = [] self._buttons_index = [] # The list of buttons used for detection button_group = displayio.Group() # Create the displayio button definitions for key in HP_BUTTONS: button = Button( x=key[0][0], y=key[0][1], width=int(key[1][0] * SIZE_FACTOR), height=int(key[1][1] * SIZE_FACTOR), style=Button.RECT, fill_color=key[3], outline_color=key[4], name=key[2], label=key[2], label_font=self.FONT_0, label_color=Colors.WHITE, selected_fill=Colors.RED, selected_outline=Colors.RED, ) if button.fill_color == Colors.WHITE: button.label_color = Colors.BLACK button_group.append(button) self._buttons.append(button) self._buttons_index.append(button.name) super().__init__() self.append(button_group) return @property def timeout(self): """Button timeout duration setting.""" return self._timeout @timeout.setter def timeout(self, hold_time=1.0): """Select timeout duration value in seconds, positive float value.""" if hold_time < 0 or hold_time >= 10: print( "Invalid button timeout duration value. Must be between 0 and 10 seconds." ) return self._timeout = hold_time return def read_buttons(self): button_pressed = button_name = None hold_time = 0 touch = self.ts.points if touch: for button in self._buttons: if button.contains(touch[0]): # read only the first point touched button.selected = True if self._click: # Make a click sound when button is pressed tone(board.A0, 2000, 0.025, length=8) button_pressed = button.name button_name = self._buttons_index.index(button_pressed) timeout_beep = False while self.ts.points: time.sleep(0.1) hold_time += 0.1 if hold_time >= self._timeout and not timeout_beep: if self._click: # Play a beep tone if button is held tone(board.A0, 1320, 0.100, length=8) timeout_beep = True button.selected = False if self._click: # Make a click sound when button is released tone(board.A0, 2000, 0.025, length=8) return button_pressed, button_name, hold_time