Pi And More 11 - Python Pushbutton Class

As on PAM 11 in Trier introduced: Python-Logger-Class (Push Button Library) as part of the Python magnetic field logger and detector project.

########################################
#
# Python Magnetic Field Logger and Detector
#   by Sebastian Folz
#   Pusbutton library - handles push buttons
# Introduced on Pi And More 11
#
########################################

# import GPIO
import RPi.GPIO as GPIO
# enumerations
from enum import Enum

class Push(Enum):
    NONE = 0
    SHORT_DOWN = 1
    LONG_DOWN = 2

class pushbutton:
    #pushed = False
    
    def __init__(self):
        GPIO.setmode(GPIO.BOARD)
        self.pushed = False
        self.pin = -1
        self.cycles = 0

    def setLongCycle(self, cycles):
        self.long_cycles = cycles;

    def configure(self, aPin):
        self.pin = aPin
        GPIO.setup(self.pin, GPIO.IN, pull_up_down = GPIO.PUD_UP)

    def isPushed(self):

        # initial push down
        if (self.pushed == False):
            if (GPIO.input(self.pin) == GPIO.HIGH):
                self.pushed = True
                return Push.NONE

        # after pushing down count cycles
        if (self.pushed == True):
            self.cycles += 1
            
        # final push release
        if (self.pushed == True):
            if (GPIO.input(self.pin) == GPIO.LOW):
                self.pushed = False

                print("CYCLES: {}/{}".format(self.cycles, self.long_cycles))

                if (self.cycles < self.long_cycles):
                    self.cycles = 0
                    return Push.SHORT_DOWN
                else:
                    self.cycles = 0
                    return Push.LONG_DOWN

        # default
        return Push.NONE