49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
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* StaticDisplay.hpp
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*
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* Created on: 31 окт. 2021 г.
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* Author: alexander
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*/
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#include "Observer.hpp"
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#include "DisplayElement.hpp"
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#include "WeatherData.hpp"
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class StaticDisplay: public Observer, public DisplayElement
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{
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private:
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float maxTemp;
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float minTemp;
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float tempSum;
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int numReadings;
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WeatherData &weatherData;
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public:
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StaticDisplay(WeatherData &weatherData) :
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maxTemp(0.0), minTemp(200.0), tempSum(0.0), numReadings(0), weatherData(weatherData)
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{
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weatherData.registerObserver(*this);
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}
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void update(float temperature, float humidity, float pressure) override
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{
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this->tempSum += temperature;
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this->numReadings++;
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if (temperature > this->maxTemp) {
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this->maxTemp = temperature;
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}
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if (temperature < this->minTemp) {
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this->minTemp = temperature;
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}
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display();
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}
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void display() const override
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{
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std::cout << "Avg/Max/Min temperature = " << (tempSum / numReadings)
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<< "/" << maxTemp << "/" << minTemp << std::endl;
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}
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};
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