PulseStudio/VoxelEngine
PulseStudio/VoxelEngine
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added base hex color parser, and md statement

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This commit is contained in:
GHOST11111100 2025-01-15 18:42:16 +03:00
parent 40cdebb175
commit 6d9771bc32
1 changed files with 56 additions and 21 deletions
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77
src/graphics/ui/markdown.cpp
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@ -1,15 +1,21 @@
#include "markdown.hpp"
#include "graphics/core/Font.hpp"
using namespace markdown;
static inline int hexchar2int(char c) {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'a' && c <= 'f') return c - 'a' + 10;
if (c >= 'A' && c <= 'F') return c - 'A' + 10;
return -1;
}
template <typename CharT>
static inline void emit(
CharT c, FontStylesScheme& styles, std::basic_stringstream<CharT>& ss
) {
ss << c;
styles.map.emplace_back(styles.palette.size()-1);
styles.map.emplace_back(styles.palette.size() - 1);
}
template <typename CharT>
@ -21,21 +27,36 @@ static inline void emit_md(
}
template <typename CharT>
static inline void restyle(
CharT c,
FontStyle& style,
FontStylesScheme& styles,
std::basic_stringstream<CharT>& ss,
int& pos,
bool eraseMarkdown
) {
styles.palette.push_back(style);
if (!eraseMarkdown) {
emit_md(c, styles, ss);
static glm::vec4 parse_color(const std::basic_string_view<CharT>& color_code) {
if (color_code.size() != 9 || color_code[0] != '#') {
return glm::vec4(1, 1, 1, 1); // default to white
}
pos++;
auto hex_to_float = [](char high, char low) {
int high_val = hexchar2int(high);
int low_val = hexchar2int(low);
if (high_val == -1 || low_val == -1) {
return 1.0f; // default to max value on error
}
return (high_val * 16 + low_val) / 255.0f;
};
return glm::vec4(
hex_to_float(color_code[1], color_code[2]),
hex_to_float(color_code[3], color_code[4]),
hex_to_float(color_code[5], color_code[6]),
hex_to_float(color_code[7], color_code[8])
);
}
template <typename CharT>
static inline void apply_color(const std::basic_string_view<CharT>& color_code, FontStylesScheme& styles) {
FontStyle style = styles.palette.back();
style.color = parse_color(color_code);
styles.palette.push_back(style);
}
// TODO: Refactor md code processing
template <typename CharT>
Result<CharT> process_markdown(
std::basic_string_view<CharT> source, bool eraseMarkdown
@ -50,6 +71,19 @@ Result<CharT> process_markdown(
int pos = 0;
while (pos < source.size()) {
CharT first = source[pos];
if (first == '[' && pos + 10 < source.size() && source[pos + 1] == '#' && source[pos + 9] == ']') {
std::basic_string_view<CharT> color_code = source.substr(pos + 1, 9);
apply_color(color_code, styles);
if (!eraseMarkdown) {
for (int i = 0; i < 10; ++i) {
emit_md(source[pos + i], styles, ss);
}
}
pos += 10; // Skip past the color code
continue;
}
if (first == '\\') {
if (pos + 1 < source.size()) {
CharT second = source[++pos];
@ -67,32 +101,33 @@ Result<CharT> process_markdown(
pos--;
}
} else if (first == '*') {
if (pos + 1 < source.size() && source[pos+1] == '*') {
if (pos + 1 < source.size() && source[pos + 1] == '*') {
pos++;
if (!eraseMarkdown)
emit_md(first, styles, ss);
style.bold = !style.bold;
restyle(first, style, styles, ss, pos, eraseMarkdown);
styles.palette.push_back(style);
continue;
}
style.italic = !style.italic;
restyle(first, style, styles, ss, pos, eraseMarkdown);
styles.palette.push_back(style);
continue;
} else if (first == '_' && pos + 1 < source.size() && source[pos+1] == '_') {
} else if (first == '_' && pos + 1 < source.size() && source[pos + 1] == '_') {
pos++;
if (!eraseMarkdown)
emit_md(first, styles, ss);
style.underline = !style.underline;
restyle(first, style, styles, ss, pos, eraseMarkdown);
styles.palette.push_back(style);
continue;
} else if (first == '~' && pos + 1 < source.size() && source[pos+1] == '~') {
} else if (first == '~' && pos + 1 < source.size() && source[pos + 1] == '~') {
pos++;
if (!eraseMarkdown)
emit_md(first, styles, ss);
style.strikethrough = !style.strikethrough;
restyle(first, style, styles, ss, pos, eraseMarkdown);
styles.palette.push_back(style);
continue;
}
if (first == '\n') {
styles.palette.push_back(styles.palette.at(1));
}