InfiniTime/src/displayapp/LittleVgl.h

#pragma once

#include <lvgl/lvgl.h>

namespace Pinetime {
  namespace Drivers {
    class Cst816S;
    class St7789;
  }

  namespace Components {
    class LittleVgl {
      public:
        enum class FullRefreshDirections { None, Up, Down };
        LittleVgl(Pinetime::Drivers::St7789& lcd, Pinetime::Drivers::Cst816S& touchPanel);

        LittleVgl(const LittleVgl&) = delete;
        LittleVgl& operator=(const LittleVgl&) = delete;
        LittleVgl(LittleVgl&&) = delete;
        LittleVgl& operator=(LittleVgl&&) = delete;

        void FlushDisplay(const lv_area_t * area, lv_color_t * color_p);
        bool GetTouchPadInfo(lv_indev_data_t *ptr);
        void SetFullRefresh(FullRefreshDirections direction);
        void SetNewTapEvent(uint16_t x, uint16_t y);

      private:
        void InitDisplay();
        void InitTouchpad();
        void InitTheme();


        Pinetime::Drivers::St7789& lcd;
        Pinetime::Drivers::Cst816S& touchPanel;


        lv_disp_buf_t disp_buf_2;
        lv_color_t buf2_1[LV_HOR_RES_MAX * 4];
        lv_color_t buf2_2[LV_HOR_RES_MAX * 4];

        lv_disp_drv_t disp_drv;
        lv_point_t previousClick;

        bool firstTouch = true;
        static constexpr uint8_t nbWriteLines = 4;
        static constexpr uint16_t totalNbLines = 320;
        static constexpr uint16_t visibleNbLines = 240;
        static constexpr uint8_t MaxScrollOffset() { return LV_VER_RES_MAX - nbWriteLines; }
        FullRefreshDirections scrollDirection = FullRefreshDirections::None;
        uint16_t writeOffset = 0;
        uint16_t scrollOffset = 0;

        uint16_t tap_x = 0;
        uint16_t tap_y = 0;
        bool tapped = false;
    };
  }
}