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Support color in text

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This commit is contained in:
jaby
2023-06-22 21:52:34 +02:00
parent 378196d422
commit dded028da2
4 changed files with 53 additions and 16 deletions
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41
examples/PoolBox/application/src/FontWriter/font_writer.cpp
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@@ -28,43 +28,58 @@ namespace FontWriter {
}
}
void write(int16_t x, int16_t y, const char* text) {
Position write(Position pos, const char* text) {
static const auto parse_esc = [](const char* text, const GPU::Color24& color) -> pair<const char*, GPU::Color24> {
static const auto char_to_color = [](char number) constexpr -> uint8_t {
return (1 << (number - '0')) - 1;
};
if(text[0] != '[' || text[2] != ';' || text[4] != ';' || text[6] != 'm') {
return {text, color};
}
return {text + 7, GPU::Color24(char_to_color(text[1]), char_to_color(text[3]), char_to_color(text[5]))};
};
const auto* cur_text_end = &TextBuffer[GPU::Display::current_id][TextBufferSize];
const auto org_x = x;
const auto org_x = pos.x;
auto font_color = GPU::Color24::Grey();
while(TextPtr < cur_text_end) {
const char cur_char = *text;
text++;
(*TextPtr)->position = {x, y};
(*TextPtr)->position = pos;
switch(cur_char) {
case '\0':
return;
goto end;
case '\n':
y += 16;
x = org_x;
pos.y += 16;
pos.x = org_x;
continue;
case '\x1b':
tie(text, font_color) = parse_esc(text, font_color);
continue;
case 'i':
case '!':
x += 12;
pos.x += 12;
break;
default:
x += 16;
}
if(cur_char == '\0') {
break;
pos.x += 16;
}
const uint8_t char_id = cur_char - '!';
(*TextPtr)->page = {static_cast<uint8_t>((char_id & 0xF) << 4), static_cast<uint8_t>((char_id >> 4) << 4)};
(*TextPtr)->color = GPU::Color24::Grey();
(*TextPtr)->color = font_color;
TextLink = &TextLink->concat(*TextPtr);
TextPtr++;
}
end:
return pos;
}
void render() {