/* returns the number of requested digits */
static uint8_t m2_el_u32_get_digits(m2_rom_void_p element)
{
uint8_t c = m2_opt_get_val_any_default(m2_el_fnfmt_get_fmt_by_element(element), 'c', 9);
if ( c == 0 )
c = 1;
if ( c > 9 )
c = 9;
return c;
}
static M2_EL_FN_DEF(m2_el_s8num_sub_fn)
{
uint8_t digits;
uint8_t width;
uint8_t font;
font = m2_el_fmfmt_get_font(fn_arg);
/* maybe the width is needed, precalculate the pixel width */
/* get number of digits to show */
digits = m2_opt_get_val_any_default(m2_el_fnfmt_get_fmt(fn_arg), 'c', 3);
/* calculate pixel width */
width = digits;
width++; /* add one char for the sign */
width *= m2_gfx_get_num_char_width(font);
switch(fn_arg->msg)
{
case M2_EL_MSG_GET_HEIGHT:
return m2_gfx_add_normal_border_height(font, m2_gfx_get_char_height(font));
case M2_EL_MSG_GET_WIDTH:
return m2_gfx_add_normal_border_width(font, width);
#ifdef M2_EL_MSG_DBG_SHOW
case M2_EL_MSG_DBG_SHOW:
{
m2_pos_p b = (m2_pos_p)(fn_arg->data);
printf("u8 w:%d arg:%d x:%d y:%d %u\n",
width,
(fn_arg->arg), b->x, b->y, (unsigned)m2_el_s8_get_val(fn_arg));
}
return 0;
#endif
case M2_EL_MSG_SHOW:
{
m2_pos_p b = (m2_pos_p)(fn_arg->data);
if ( m2_is_frame_draw_at_end == 0 )
m2_el_s8base_fn(fn_arg);
m2_gfx_draw_text_add_normal_border_offset(b->x, b->y, 0, 0, font, m2_utl_s8d(m2_el_s8_get_val(fn_arg), digits, m2_el_fmfmt_opt_get_val_zero_default(fn_arg, '+')));
if ( m2_is_frame_draw_at_end != 0 )
m2_el_s8base_fn(fn_arg);
}
return 1;
}
return m2_el_s8base_fn(fn_arg);
}
uint8_t m2_opt_get_val_zero_default(m2_rom_char_p str, char cmd)
{
return m2_opt_get_val_any_default(str, cmd, 0);
}
uint8_t m2_opt_get_val(m2_rom_char_p str, char cmd)
{
return m2_opt_get_val_any_default(str, cmd, M2_OPT_NOT_FOUND);
}
