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package com.diozero.devices;
/*
* #%L
* Organisation: diozero
* Project: Device I/O Zero - Core
* Filename: PwmLedBarGraph.java
*
* This file is part of the diozero project. More information about this project
* can be found at http://www.diozero.com/
* %%
* Copyright (C) 2016 - 2020 diozero
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
import java.io.Closeable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import com.diozero.api.OutputDeviceInterface;
import com.diozero.internal.provider.PwmOutputDeviceFactoryInterface;
import com.diozero.util.DeviceFactoryHelper;
import com.diozero.util.RangeUtil;
import com.diozero.util.RuntimeIOException;
public class PwmLedBarGraph implements OutputDeviceInterface, Closeable {
private List leds;
private float value;
public PwmLedBarGraph(int... gpios) {
this(DeviceFactoryHelper.getNativeDeviceFactory(), gpios);
}
public PwmLedBarGraph(PwmOutputDeviceFactoryInterface deviceFactory, int... gpios) {
leds = new ArrayList<>();
for (int gpio : gpios) {
leds.add(new PwmLed(deviceFactory, gpio, 0));
}
}
public PwmLedBarGraph(PwmLed... leds) {
this.leds = Arrays.asList(leds);
}
public PwmLedBarGraph(List leds) {
this.leds = leds;
}
public void on() {
leds.forEach(PwmLed::on);
}
public void off() {
leds.forEach(PwmLed::off);
}
public void toggle() {
leds.forEach(PwmLed::toggle);
}
public void blink() {
leds.forEach(PwmLed::blink);
}
public void pulse(float fadeTime, int steps, int iterations) {
leds.forEach(led -> led.pulse(fadeTime, steps, iterations, true));
}
/**
* Get the proportion of LEDs currently lit.
* @return Proportion of LEDs lit. 0..1 if lit from left to right, 0..-1 if lit from right to left.
*/
public float getValue() {
return value;
}
/**
* Light a proportion of the LEDs using value as a percentage.
* @param newValue Proportion of LEDs to light. 0..1 lights from left to right, 0..-1 lights from right to left.
*/
@Override
public void setValue(float newValue) {
value = RangeUtil.constrain(newValue, -1, 1);
for (int i=0; i
