'LV_BUTTONMATRIX_CTRL_WIDTH_4' was not declared

Other Hardware Displays
1

hi all, I'm trying to set a custom map to my keyboard.
I following an example and the error appears

'LV_BUTTONMATRIX_CTRL_WIDTH_4' was not declared in this scope

void lv_example_keyboard_2(void)
{
    /*Create an AZERTY keyboard map*/
    static const char * kb_map[] = {"A", "Z", "E", "R", "T", "Y", "U", "I", "O", "P", LV_SYMBOL_BACKSPACE, "\n",
                                    "Q", "S", "D", "F", "G", "J", "K", "L", "M",  LV_SYMBOL_NEW_LINE, "\n",
                                    "W", "X", "C", "V", "B", "N", ",", ".", ":", "!", "?", "\n",
                                    LV_SYMBOL_CLOSE, " ",  " ", " ", LV_SYMBOL_OK, NULL
                                   };

    /*Set the relative width of the buttons and other controls*/
    static const lv_buttonmatrix_ctrl_t kb_ctrl[] = {LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_6,
                                                     LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_6,
                                                      LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,
                                                      LV_BUTTONMATRIX_CTRL_WIDTH_2, (LV_BUTTONMATRIX_CTRL_HIDDEN |  LV_BUTTONMATRIX_CTRL_WIDTH_2), LV_BUTTONMATRIX_CTRL_WIDTH_6, (LV_BUTTONMATRIX_CTRL_HIDDEN | LV_BUTTONMATRIX_CTRL_WIDTH_2), LV_BUTTONMATRIX_CTRL_WIDTH_2
                                                    };

    /*Create a keyboard and add the new map as USER_1 mode*/
    lv_obj_t * kb = lv_keyboard_create(lv_screen_active());

    lv_keyboard_set_map(kb, LV_KEYBOARD_MODE_USER_1, kb_map, kb_ctrl);
    lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_USER_1);

    /*Create a text area. The keyboard will write here*/
    lv_obj_t * ta;
    ta = lv_textarea_create(lv_screen_active());
    lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 10);
    lv_obj_set_size(ta, lv_pct(90), 80);
    lv_obj_add_state(ta, LV_STATE_FOCUSED);

    lv_keyboard_set_textarea(kb, ta);
}
can someone help me?
many thanks
2

So where is it declared, if at all ?

Please post your full sketch

3 

#include <lvgl.h>
#include <TFT_eSPI.h>
#include <XPT2046_Touchscreen.h>
#include "lv_buttonmatrix.h"
#include "ui.h"
#include "vars.h"
#include <string.h>
#include "structs.h"
#include <screens.h>
// Touchscreen pins
#define XPT2046_IRQ 36   // T_IRQ
#define XPT2046_MOSI 32  // T_DIN
#define XPT2046_MISO 39  // T_OUT
#define XPT2046_CLK 25   // T_CLK
#define XPT2046_CS 33    // T_CS
SPIClass touchscreenSPI = SPIClass(VSPI);
XPT2046_Touchscreen touchscreen(XPT2046_CS, XPT2046_IRQ);

#define SCREEN_WIDTH 240
#define SCREEN_HEIGHT 320

// Touchscreen coordinates: (x, y) and pressure (z)


#define DRAW_BUF_SIZE (SCREEN_WIDTH * SCREEN_HEIGHT / 10 * (LV_COLOR_DEPTH / 8))
uint32_t draw_buf[DRAW_BUF_SIZE / 4];

// If logging is enabled, it will inform the user about what is happening in the library
void log_print(lv_log_level_t level, const char * buf) {
  LV_UNUSED(level);
  Serial.println(buf);
  Serial.flush();
}
void setup() {
  String LVGL_Arduino = String("LVGL Library Version: ") + lv_version_major() + "." + lv_version_minor() + "." + lv_version_patch();
  Serial.begin(9600);
  Serial.println(LVGL_Arduino);
  
  // Start LVGL
  lv_init();
  // Register print function for debugging
  lv_log_register_print_cb(log_print);

  // Start the SPI for the touchscreen and init the touchscreen
  touchscreenSPI.begin(XPT2046_CLK, XPT2046_MISO, XPT2046_MOSI, XPT2046_CS);
  touchscreen.begin(touchscreenSPI);
  // Set the Touchscreen rotation in landscape mode
  // Note: in some displays, the touchscreen might be upside down, so you might need to set the rotation to 0: touchscreen.setRotation(0);
  touchscreen.setRotation(2);

  // Create a display object
  lv_display_t * disp;
  // Initialize the TFT display using the TFT_eSPI library
  disp = lv_tft_espi_create(SCREEN_WIDTH, SCREEN_HEIGHT, draw_buf, sizeof(draw_buf));
  lv_display_set_rotation(disp, LV_DISPLAY_ROTATION_270);
    
  // Initialize an LVGL input device object (Touchscreen)
  lv_indev_t * indev = lv_indev_create();
  lv_indev_set_type(indev, LV_INDEV_TYPE_POINTER);
  // Set the callback function to read Touchscreen input
  lv_indev_set_read_cb(indev, touchscreen_read);

  // Function to draw the GUI (text, buttons and sliders)
  //lv_create_main_gui();
  //lv_create_setting_gui();


  ui_init(); // <-- Add

  lv_example_keyboard_2();
}


void lv_example_keyboard_2(void)
{
    /*Create an AZERTY keyboard map*/
    static const char * kb_map[] = {"A", "Z", "E", "R", "T", "Y", "U", "I", "O", "P", LV_SYMBOL_BACKSPACE, "\n",
                                    "Q", "S", "D", "F", "G", "J", "K", "L", "M",  LV_SYMBOL_NEW_LINE, "\n",
                                    "W", "X", "C", "V", "B", "N", ",", ".", ":", "!", "?", "\n",
                                    LV_SYMBOL_CLOSE, " ",  " ", " ", LV_SYMBOL_OK, NULL
                                   };

    /*Set the relative width of the buttons and other controls*/
    static const lv_buttonmatrix_ctrl_t kb_ctrl[] = {LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_6,
                                                     LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_6,
                                                      LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,  LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4, LV_BUTTONMATRIX_CTRL_WIDTH_4,
                                                      LV_BUTTONMATRIX_CTRL_WIDTH_2, (LV_BUTTONMATRIX_CTRL_HIDDEN |  LV_BUTTONMATRIX_CTRL_WIDTH_2), LV_BUTTONMATRIX_CTRL_WIDTH_6, (LV_BUTTONMATRIX_CTRL_HIDDEN | LV_BUTTONMATRIX_CTRL_WIDTH_2), LV_BUTTONMATRIX_CTRL_WIDTH_2
                                                    };

    /*Create a keyboard and add the new map as USER_1 mode*/
    lv_obj_t * kb = lv_keyboard_create(lv_screen_active());

    lv_keyboard_set_map(kb, LV_KEYBOARD_MODE_USER_1, kb_map, kb_ctrl);
    lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_USER_1);

    /*Create a text area. The keyboard will write here*/
    lv_obj_t * ta;
    ta = lv_textarea_create(lv_screen_active());
    lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 10);
    lv_obj_set_size(ta, lv_pct(90), 80);
    lv_obj_add_state(ta, LV_STATE_FOCUSED);

    lv_keyboard_set_textarea(kb, ta);
}
4

It does not appear to be declared or #defined in your sketch, hence the error

Where did you get the code from ?

5

I have never used lvgl library, btw I just try and give you hints. After a quick search on GitHub, it looks like that symbol is defined in src/widgets/buttonmatrix/lv_buttonmatrix.h.

On your sketch, I see you have included a local "lv_buttonmatrix.h" what is it?

6

The definition of enum lv_buttonmatrix_ctrl_t differs between LVGL 9.3 and earlier versions.

LVGL 9.0:

LVGL 9.3:

If you want to use LV_BUTTONMATRIX_CTRL_WIDTH_4, you need to upgrade your LVGL version to 9.3.