78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
#pragma once
|
|
|
|
#include <cstdint>
|
|
#include "../TouchEvents.h"
|
|
#include <lvgl/lvgl.h>
|
|
|
|
namespace Pinetime {
|
|
namespace Applications {
|
|
class DisplayApp;
|
|
namespace Screens {
|
|
|
|
template <class T> class DirtyValue {
|
|
public:
|
|
DirtyValue() = default; // Use NSDMI
|
|
explicit DirtyValue(T const& v) : value {v} {
|
|
} // Use MIL and const-lvalue-ref
|
|
bool IsUpdated() {
|
|
if (this->isUpdated) {
|
|
this->isUpdated = false;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
T const& Get() {
|
|
this->isUpdated = false;
|
|
return value;
|
|
} // never expose a non-const lvalue-ref
|
|
DirtyValue& operator=(const T& other) {
|
|
if (this->value != other) {
|
|
this->value = other;
|
|
this->isUpdated = true;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
private:
|
|
T value {}; // NSDMI - default initialise type
|
|
bool isUpdated {true}; // NSDMI - use brace initilisation
|
|
};
|
|
|
|
class Screen {
|
|
private:
|
|
virtual void Refresh() {
|
|
}
|
|
|
|
public:
|
|
explicit Screen(DisplayApp* app) : app {app} {
|
|
}
|
|
virtual ~Screen() = default;
|
|
|
|
static void RefreshTaskCallback(lv_task_t* task);
|
|
|
|
bool IsRunning() const {
|
|
return running;
|
|
}
|
|
|
|
/** @return false if the button hasn't been handled by the app, true if it has been handled */
|
|
virtual bool OnButtonPushed() {
|
|
return false;
|
|
}
|
|
|
|
/** @return false if the event hasn't been handled by the app, true if it has been handled */
|
|
// Returning true will cancel lvgl tap
|
|
virtual bool OnTouchEvent(TouchEvents event) {
|
|
return false;
|
|
}
|
|
virtual bool OnTouchEvent(uint16_t x, uint16_t y) {
|
|
return false;
|
|
}
|
|
|
|
protected:
|
|
DisplayApp* app;
|
|
bool running = true;
|
|
};
|
|
}
|
|
}
|
|
}
|