/**
 * @file lv_port_indev_templ.c
 *
 */

/*Copy this file as "lv_port_indev.c" and set this value to "1" to enable content*/
#if 1

/*********************
 *      INCLUDES
 *********************/
#include "lv_port_indev.h"



#include "lcd.h"
#include "gt911.h"


static void touchpad_init(void);
static void touchpad_read(lv_indev_t * indev, lv_indev_data_t * data);
static bool touchpad_is_pressed(void);
static void touchpad_get_xy(int32_t * x, int32_t * y);



lv_indev_t * indev_touchpad;


void lv_port_indev_init(void)
{
   touchpad_init();

    /*Register a touchpad input device*/
    indev_touchpad = lv_indev_create();
    lv_indev_set_type(indev_touchpad, LV_INDEV_TYPE_POINTER);
    lv_indev_set_read_cb(indev_touchpad, touchpad_read);


}

/**********************
 *   STATIC FUNCTIONS
 **********************/

/*------------------
 * Touchpad
 * -----------------*/

/*Initialize your touchpad*/
static void touchpad_init(void)
{
    /*Your code comes here*/
	GT911_Init(0xBA);
}

/*Will be called by the library to read the touchpad*/
static void touchpad_read(lv_indev_t * indev_drv, lv_indev_data_t * data)
{
    static lv_coord_t last_x = 0;
    static lv_coord_t last_y = 0;

    /*Save the pressed coordinates and the state*/
    if(touchpad_is_pressed()) {
        touchpad_get_xy(&last_x, &last_y);
        data->state = LV_INDEV_STATE_PR;
    }
    else {
        data->state = LV_INDEV_STATE_REL;
    }

    /*Set the last pressed coordinates*/
    data->point.x = last_x;
    data->point.y = last_y;
}

/*Return true is the touchpad is pressed*/
static bool touchpad_is_pressed(void)
{
    /*Your code comes here*/

	if(GT911_Scanf() != 0)//填写是否被按下的函数
	{
		return true;
	}
    return false;
}

/*Get the x and y coordinates if the touchpad is pressed*/
static void touchpad_get_xy(lv_coord_t * x, lv_coord_t * y)
{
    /*Your code comes here*/

	uint16_t m_x,m_y;
	
	GT911_getPos(&m_x,&m_y);
	
	
    (*x) = m_x;
    (*y) = m_y;
}



#else /*Enable this file at the top*/

/*This dummy typedef exists purely to silence -Wpedantic.*/
typedef int keep_pedantic_happy;
#endif