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#pragma once
#include <cstdint>
#include <nrf_font.h>
#include <drivers/BufferProvider.h>
#include <FreeRTOS.h>
#include <task.h>
namespace Pinetime {
namespace Drivers {
class St7789;
}
namespace Components {
class Gfx : public Pinetime::Drivers::BufferProvider {
public:
explicit Gfx(Drivers::St7789& lcd);
void Init();
void ClearScreen();
void DrawString(uint8_t x, uint8_t y, uint16_t color, const char* text, const FONT_INFO *p_font, bool wrap);
void DrawChar(const FONT_INFO *font, uint8_t c, uint8_t *x, uint8_t y, uint16_t color);
void FillRectangle(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint16_t color);
void FillRectangle(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t* b);
void SetScrollArea(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines);
void SetScrollStartLine(uint16_t line);
void Sleep();
void Wakeup();
bool GetNextBuffer(uint8_t **buffer, size_t &size) override;
void pixel_draw(uint8_t x, uint8_t y, uint16_t color);
private:
static constexpr uint8_t width = 240;
static constexpr uint8_t height = 240;
enum class Action { None, FillRectangle, DrawChar};
struct State {
State() : busy{false}, action{Action::None}, remainingIterations{0}, currentIteration{0} {}
volatile bool busy;
volatile Action action;
volatile uint16_t remainingIterations;
volatile uint16_t currentIteration;
volatile FONT_INFO *font;
volatile uint16_t color;
volatile uint8_t character;
volatile TaskHandle_t taskToNotify = nullptr;
};
volatile State state;
uint16_t buffer[width]; // 1 line buffer
Drivers::St7789& lcd;
void SetBackgroundColor(uint16_t color);
void WaitTransfertFinished() const;
void NotifyEndOfTransfert(TaskHandle_t task);
};
}
}
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