add poller to simplify polling UI updates
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3 changed files with 47 additions and 1 deletions
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#include <memory>
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#include <stdio.h>
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#include <string>
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#include "poller.hpp"
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/// @brief Singleton to allow UI code to live separately from the Initialization
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/// of resources.
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Platformio/OmoteUI/poller.cpp
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Platformio/OmoteUI/poller.cpp
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#include "poller.hpp"
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#include <functional>
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#include <memory>
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using namespace std::chrono;
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poller::poller(milliseconds aPollTime,std::function<void()> aCallback){
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mTimer = lv_timer_create(poller::onPoll,aPollTime.count(),this);
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lv_timer_set_repeat_count(mTimer,-1); // Call forever
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}
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poller::~poller(){
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lv_timer_del(mTimer);
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}
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void poller::onPoll(_lv_timer_t* aTimer){
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poller* currentPoller = reinterpret_cast<poller*>(aTimer->user_data);
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if(currentPoller->anIntermittentCallback){
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currentPoller->anIntermittentCallback();
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}
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}
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Platformio/OmoteUI/poller.hpp
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Platformio/OmoteUI/poller.hpp
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#include <chrono>
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#include <memory>
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#include <functional>
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#include "lvgl.h"
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class poller{
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public:
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poller(std::chrono::milliseconds pollTime = std::chrono::seconds(5), std::function<void()> anIntermittentCallback = nullptr);
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virtual ~poller();
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void setPollPeriod(std::chrono::milliseconds aPollPeriod){ lv_timer_set_period(mTimer, aPollPeriod.count());}
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inline void pause() { lv_timer_pause(mTimer);}
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inline void resume() { lv_timer_resume(mTimer);}
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inline void reset() { lv_timer_reset(mTimer);}
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inline void runNext() { lv_timer_ready(mTimer);}
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private:
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lv_timer_t* mTimer;
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std::function<void()> anIntermittentCallback;
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// Static function registered to every timers callback to pass this object as context
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static void onPoll(_lv_timer_t* aTimer);
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};
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