fadeColorMode.h

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/*
 * Copyright 2017 Fraunhofer Institute for Manufacturing Engineering and Automation (IPA)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
 
#ifndef FADECOLORMODE_H
#define FADECOLORMODE_H
 
#include <mode.h>
 
class FadeColorMode : public Mode
{
public:
        FadeColorMode(color::rgba color, int priority = 0, double freq = 0.25, int pulses = 0, double timeout = 0)
                :Mode(priority, freq, pulses, timeout)
        {
                _color = color;
 
                doOnce = true;
                h = 0.0;
                h_s = 0.0;
                h_t = 0.0;
 
                _inc = (1. / UPDATE_RATE_HZ) * _freq;
        }
 
        void execute()
        {
                float r = 0;
                float g = 0;
                float b = 0;
                float s, v;
 
                if(doOnce == true)
                {
                        color::Color::rgb2hsv(_color.r, _color.g, _color.b, h, s, v);
                        h_s = h;
                        h_t = h;
                        h_s += 1;
                        doOnce = false;
                }
 
                color::Color::hsv2rgb(h, 1.0, 1.0, r, g, b);
 
                h += _inc;
                h_t += _inc;
                if(h > 1.0)
                        h = 0.0;
 
                if(h_t >= h_s)
                {
                        _pulsed++; h_s+=1;
                }
 
                color::rgba col;
                col.r = r;
                col.g = g;
                col.b = b;
                col.a = _color.a;
 
                m_sigColorReady(col);
        }
 
        std::string getName(){ return std::string("FadeColorMode"); }
 
private:
        bool doOnce;
        float h;
        float h_s;
        float h_t;
        double _inc;
};
 
#endif