/**
* Copyright (c) 2010-2014, openHAB.org and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.binding.dmx.internal.config;
import org.openhab.binding.dmx.DmxBindingProvider;
import org.openhab.binding.dmx.DmxService;
import org.openhab.binding.dmx.internal.core.DmxChannel;
import org.openhab.binding.dmx.internal.core.DmxUtil;
import org.openhab.core.library.types.IncreaseDecreaseType;
import org.openhab.core.library.types.PercentType;
import org.openhab.core.types.Command;
import org.openhab.model.item.binding.BindingConfigParseException;
/**
* DMX item configuration for openHAB Dimmer Items.
*
* @author Davy Vanherbergen
* @since 1.2.0
*/
public class DmxDimmerItem extends DmxSwitchItem {
/** Step size in a 0-100 scale for increasing/decreasing dim values */
protected static final int DIMMER_STEP_SIZE = 5;
/**
* Create new dimmer item using a given configuration string.
*
* @param itemName
* name of the item
* @param configString
* configuration string
* @param dmxBindingProvider
* binding provider which created the item
* @throws BindingConfigParseException
* if configuration string could not be parsed.
*/
public DmxDimmerItem(String itemName, String configString,
DmxBindingProvider dmxBindingProvider)
throws BindingConfigParseException {
super(itemName, configString, dmxBindingProvider);
}
/**
* {@inheritDoc}
*/
@Override
public void processCommand(DmxService service, Command command) {
// process increase/decrease
if (command instanceof IncreaseDecreaseType
&& !isRedefinedByCustomCommand(command)) {
IncreaseDecreaseType t = (IncreaseDecreaseType) command;
if (IncreaseDecreaseType.INCREASE.equals(t)) {
for (int channelId : channels) {
service.enableChannel(channelId);
service.increaseChannel(channelId, DIMMER_STEP_SIZE);
if (service.getChannelValue(channelId) == 0) {
service.setChannelValue(channelId,
DmxChannel.DMX_MAX_VALUE);
}
}
} else {
for (int channelId : channels) {
service.decreaseChannel(channelId, DIMMER_STEP_SIZE);
}
}
return;
}
// process percent command
if (command instanceof PercentType && !isRedefinedByCustomCommand(command)) {
for (int channelId : channels) {
service.setChannelValue(channelId, DmxChannel.DMX_MAX_VALUE);
service.setChannelValue(channelId, (PercentType) command);
}
return;
}
// process switch command
super.processCommand(service, command);
}
/**
* {@inheritDoc}
*/
@Override
public void processStatusUpdate(int[] channelValues) {
if (channelValues.length == 0) {
return;
}
publishState(DmxUtil.getPercentTypeFromByte(channelValues[0]));
}
}