001package com.pi4j.io.gpio.trigger;
002
003/*
004 * #%L
005 * **********************************************************************
006 * ORGANIZATION  :  Pi4J
007 * PROJECT       :  Pi4J :: Java Library (Core)
008 * FILENAME      :  GpioInverseSyncStateTrigger.java
009 *
010 * This file is part of the Pi4J project. More information about
011 * this project can be found here:  https://www.pi4j.com/
012 * **********************************************************************
013 * %%
014 * Copyright (C) 2012 - 2019 Pi4J
015 * %%
016 * This program is free software: you can redistribute it and/or modify
017 * it under the terms of the GNU Lesser General Public License as
018 * published by the Free Software Foundation, either version 3 of the
019 * License, or (at your option) any later version.
020 *
021 * This program is distributed in the hope that it will be useful,
022 * but WITHOUT ANY WARRANTY; without even the implied warranty of
023 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
024 * GNU General Lesser Public License for more details.
025 *
026 * You should have received a copy of the GNU General Lesser Public
027 * License along with this program.  If not, see
028 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
029 * #L%
030 */
031
032import com.pi4j.io.gpio.GpioPin;
033import com.pi4j.io.gpio.GpioPinDigitalOutput;
034import com.pi4j.io.gpio.PinState;
035
036import java.util.List;
037
038@SuppressWarnings("unused")
039public class GpioInverseSyncStateTrigger extends OutputTargetedGpioTrigger {
040
041        public GpioInverseSyncStateTrigger(GpioPinDigitalOutput targetPin) {
042                super(targetPin);
043        }
044
045        public GpioInverseSyncStateTrigger(PinState state, GpioPinDigitalOutput targetPin) {
046                super(state, targetPin);
047        }
048
049        public GpioInverseSyncStateTrigger(PinState[] states, GpioPinDigitalOutput targetPin) {
050                super(states, targetPin);
051        }
052
053        public GpioInverseSyncStateTrigger(List<PinState> states, GpioPinDigitalOutput targetPin) {
054                super(states, targetPin);
055        }
056
057        @Override
058        public void invoke(GpioPin pin, PinState state) {
059                if (targetPin != null) {
060                        if (state == PinState.HIGH) {
061                                targetPin.setState(PinState.LOW);
062                        } else {
063                                targetPin.setState(PinState.HIGH);
064                        }
065                }
066        }
067}