touch.hpp

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// SPDX-License-Identifier: Apache-2.0
// Copyright 2026 Chris Leishman
 
#pragma once
 
#include <idfxx/gpio>
 
#include <cstdint>
#include <functional>
 
struct esp_lcd_touch_s;
typedef struct esp_lcd_touch_s esp_lcd_touch_t;
typedef esp_lcd_touch_t* esp_lcd_touch_handle_t;
 
namespace idfxx::lcd {
 
class touch {
public:
    typedef std::move_only_function<
        void(uint16_t* x, uint16_t* y, uint16_t* strength, uint8_t* point_num, uint8_t max_point_num)>
        process_coordinates_callback;
 
    struct config {
        uint16_t x_max = 0; 
        uint16_t y_max = 0; 
 
        gpio rst_gpio = gpio::nc(); 
        gpio int_gpio = gpio::nc(); 
 
        gpio::level reset_level = gpio::level::low;     
        gpio::level interrupt_level = gpio::level::low; 
 
        bool swap_xy = false;  
        bool mirror_x = false; 
        bool mirror_y = false; 
 
        process_coordinates_callback process_coordinates = nullptr;
    };
 
    virtual ~touch() = default;
 
    touch(const touch&) = delete;
    touch& operator=(const touch&) = delete;
 
    [[nodiscard]] esp_lcd_touch_handle_t idf_handle() const { return do_idf_handle(); }
 
protected:
    touch() = default;
    touch(touch&&) noexcept = default;
    touch& operator=(touch&&) noexcept = default;
 
    [[nodiscard]] virtual esp_lcd_touch_handle_t do_idf_handle() const = 0;
};
 
} // namespace idfxx::lcd