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