NegatingIoAbstraction.h

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/*
 * Copyright (c) 2018 https://www.thecoderscorner.com (Dave Cherry).
 * This product is licensed under an Apache license, see the LICENSE file in the top-level directory.
 */
#ifndef _NEGATING_IO_ABSTRACTION_
#define _NEGATING_IO_ABSTRACTION_
 
#include "BasicIoAbstraction.h"
 
class NegatingIoAbstraction : public BasicIoAbstraction {
private:
    IoAbstractionRef delegate;
public:
    NegatingIoAbstraction(IoAbstractionRef toInvert) { delegate = toInvert; }
    
    void pinDirection(pinid_t pin, uint8_t mode) override {
        delegate->pinDirection(pin, mode); 
    }
    
    void writeValue(pinid_t pin, uint8_t value) override {
        delegate->writeValue(pin, !value); 
    }
    
    uint8_t readValue(pinid_t pin) override {
        return !delegate->readValue(pin);
    }
    
    void attachInterrupt(pinid_t pin, RawIntHandler interruptHandler, uint8_t mode) override {
        delegate->attachInterrupt(pin, interruptHandler, mode); 
    }
    
    bool runLoop() override {
        return delegate->runLoop();
    }
 
    void writePort(pinid_t pin, uint8_t portVal) override {
        delegate->writePort(pin, ~portVal);
    }
 
    uint8_t readPort(pinid_t pin) override {
        return ~(delegate->readPort(pin));
    }
};
 
#endif // _NEGATING_IO_ABSTRACTION_