56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
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* fonts.c
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*
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* Created on: 23 maj 2021
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* Author: bartool
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*/
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//#include "main.h"
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#include "fonts.h"
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#include "SSD1306_oled.h"
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uint8_t font_print_str(const FONT_INFO * font, uint8_t * text, uint8_t pos_x, uint8_t pos_y)
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{
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uint8_t height = font->heightPixels;
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uint8_t x = pos_x;
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uint8_t width = font_string_lenght_px(font, text);
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SSD1306_clear_buffer(width, height, pos_x, pos_y, WHITE);
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while(*text)
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{
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uint8_t actual_char = *text++;
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if (actual_char < ' ' || actual_char > 126)
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{
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continue;
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}
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uint8_t char_nr = actual_char - font->startChar;
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const FONT_CHAR_INFO *charinfo = &font->charInfo[char_nr];
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SSD1306_write_to_buffer(font->data + charinfo->offset, charinfo->widthBits, height, x, pos_y, BLACK);
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x += charinfo->widthBits + font->interspacePixels;
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}
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return x;
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}
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uint8_t font_string_lenght_px(const FONT_INFO * font, uint8_t * text)
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{
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uint8_t x;
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while(*text)
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{
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uint8_t actual_char = *text++;
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uint8_t char_nr = actual_char - font->startChar;
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if (actual_char < ' ' || actual_char > 126) {
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continue;
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}
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x += font->charInfo[char_nr].widthBits + font->interspacePixels;
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}
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return x;
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}
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