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Display digits and integers

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Display digits and integers, for the later displaying leading zeroes
is supported via parameter. Demo integers are displayed in the setup
screen.
This commit is contained in:
finga 2021-09-11 00:10:46 +02:00
parent 19c0f141a4
commit 6eb515e2d4
1 changed files with 60 additions and 2 deletions
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62
firmware/src/main.c
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@ -165,6 +165,62 @@ static void lcd_write_symbol_page(const struct symbol* sym,
lcd_write(sym->symbol[page * sym->length + i]); lcd_write(sym->symbol[page * sym->length + i]);
} }
static void lcd_write_digit_page(uint8_t digit, uint8_t page,
bool invert) {
switch (digit) {
case 0:
lcd_write_symbol_page(&sym_0, page, invert);
break;
case 1:
lcd_write_symbol_page(&sym_1, page, invert);
break;
case 2:
lcd_write_symbol_page(&sym_2, page, invert);
break;
case 3:
lcd_write_symbol_page(&sym_3, page, invert);
break;
case 4:
lcd_write_symbol_page(&sym_4, page, invert);
break;
case 5:
lcd_write_symbol_page(&sym_5, page, invert);
break;
case 6:
lcd_write_symbol_page(&sym_6, page, invert);
break;
case 7:
lcd_write_symbol_page(&sym_7, page, invert);
break;
case 8:
lcd_write_symbol_page(&sym_8, page, invert);
break;
case 9:
lcd_write_symbol_page(&sym_9, page, invert);
break;
}
}
static void lcd_write_integer_page(uint8_t integer, uint8_t digits,
uint8_t page, bool invert) {
if (digits != 0 || integer != 0) {
uint8_t input_digits = 0;
uint16_t comperator = 1;
for (; comperator <= integer; comperator *= 10, input_digits++);
for (int8_t i = digits - input_digits; i > 0; i--) {
lcd_write_kerning(2, invert);
lcd_write_digit_page(0, page, invert);
}
for (; comperator >= 10; comperator /= 10) {
lcd_write_kerning(2, invert);
lcd_write_digit_page((integer % comperator) / (comperator / 10),
page, invert);
}
}
}
void lcd_splash(void) { void lcd_splash(void) {
lcd_fill(0x00); lcd_fill(0x00);
@ -317,7 +373,8 @@ static void lcd_setup(void) {
lcd_write_symbol_page(&sym_t, i, false); lcd_write_symbol_page(&sym_t, i, false);
lcd_write_kerning(2, false); lcd_write_kerning(2, false);
lcd_write_symbol_page(&sym_colon, i, false); lcd_write_symbol_page(&sym_colon, i, false);
lcd_write_kerning(13, false); lcd_write_kerning(11, false);
lcd_write_integer_page(123, 1, i, false);
} }
for (uint8_t i = 0; i < 2; i++) { for (uint8_t i = 0; i < 2; i++) {
@ -346,7 +403,8 @@ static void lcd_setup(void) {
lcd_write_symbol_page(&sym_t, i, false); lcd_write_symbol_page(&sym_t, i, false);
lcd_write_kerning(2, false); lcd_write_kerning(2, false);
lcd_write_symbol_page(&sym_colon, i, false); lcd_write_symbol_page(&sym_colon, i, false);
lcd_write_kerning(9, false); lcd_write_kerning(7, false);
lcd_write_integer_page(123, 3, i, false);
} }
for (uint8_t i = 0; i < 2; i++) { for (uint8_t i = 0; i < 2; i++) {