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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.leapmotion.internal;
  14
  15 import org.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.openhab.core.library.types.DecimalType;
  17 import org.openhab.core.library.types.HSBType;
  18 import org.openhab.core.library.types.OnOffType;
  19 import org.openhab.core.library.types.PercentType;
  20 import org.openhab.core.thing.profiles.ProfileCallback;
  21 import org.openhab.core.thing.profiles.ProfileTypeUID;
  22 import org.openhab.core.thing.profiles.TriggerProfile;
  23 import org.openhab.core.types.State;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 /**
  28  * The {@link LeapMotionColorProfile} class implements the behavior when being linked to a Color item.
  29  *
  30  * @author Kai Kreuzer - Initial contribution
  31  */
  32 @NonNullByDefault
  33 public class LeapMotionColorProfile implements TriggerProfile {
  34
  35     private final Logger logger = LoggerFactory.getLogger(LeapMotionColorProfile.class);
  36
  37     private ProfileCallback callback;
  38     private HSBType lastState = HSBType.BLACK;
  39
  40     public LeapMotionColorProfile(ProfileCallback callback) {
  41         this.callback = callback;
  42     }
  43
  44     @Override
  45     public ProfileTypeUID getProfileTypeUID() {
  46         return LeapMotionProfileFactory.UID_COLOR;
  47     }
  48
  49     @Override
  50     public void onStateUpdateFromItem(State state) {
  51         if (state instanceof HSBType hsbState) {
  52             lastState = hsbState;
  53         } else {
  54             PercentType currentBrightness = state.as(PercentType.class);
  55             if (currentBrightness != null) {
  56                 lastState = new HSBType(lastState.getHue(), lastState.getSaturation(), currentBrightness);
  57             }
  58         }
  59     }
  60
  61     @Override
  62     public void onTriggerFromHandler(String event) {
  63         if (event.equals(LeapMotionBindingConstants.GESTURE_TAP)) {
  64             callback.sendCommand(lastState.getBrightness().equals(PercentType.ZERO) ? OnOffType.ON : OnOffType.OFF);
  65         } else if (event.equals(LeapMotionBindingConstants.GESTURE_CLOCKWISE)) {
  66             HSBType color = changeColor(lastState, true);
  67             callback.sendCommand(color);
  68             lastState = color;
  69         } else if (event.equals(LeapMotionBindingConstants.GESTURE_ANTICLOCKWISE)) {
  70             HSBType color = changeColor(lastState, false);
  71             callback.sendCommand(color);
  72             lastState = color;
  73         } else if (event.startsWith(LeapMotionBindingConstants.GESTURE_FINGERS)) {
  74             // the brightness is determined by the height of the palm over the sensor, where higher means brighter
  75             int fingers = Integer
  76                     .valueOf(Character.toString(event.charAt(LeapMotionBindingConstants.GESTURE_FINGERS.length())));
  77             if (fingers == 5) {
  78                 try {
  79                     int height = Integer
  80                             .valueOf(event.substring(LeapMotionBindingConstants.GESTURE_FINGERS.length() + 2));
  81                     height = Math.min(100 * height / LeapMotionDimmerProfile.MAX_HEIGHT, 100); // don't use values over
  82                                                                                                // 100
  83                     PercentType brightness = new PercentType(height);
  84                     callback.sendCommand(brightness);
  85                     lastState = new HSBType(lastState.getHue(), lastState.getSaturation(), brightness);
  86                 } catch (NumberFormatException e) {
  87                     logger.error("Found illegal format of finger event: {}", event, e);
  88                 }
  89             }
  90         }
  91     }
  92
  93     private HSBType changeColor(HSBType color, boolean clockwise) {
  94         int hue = clockwise ? (color.getHue().toBigDecimal().intValue() - 20 + 360) % 360
  95                 : (color.getHue().toBigDecimal().intValue() + 20 + 360) % 360;
  96         logger.debug("New hue value: {}", hue);
  97         return new HSBType(new DecimalType(hue), color.getSaturation(), color.getBrightness());
  98     }
  99 }