48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
#pragma once
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
struct SdCardFontFileInfo {
|
|
std::string path; // v4 on-disk naming: "/.crosspoint/fonts/<Family>/<Family>_<size>.cpfont"
|
|
// e.g. "/.crosspoint/fonts/NotoSansCJK/NotoSansCJK_14.cpfont"
|
|
uint8_t pointSize; // parsed from filename: 14
|
|
uint8_t style; // always 0 in v4 (all 4 styles bundled in one file);
|
|
// kept for potential future formats
|
|
};
|
|
|
|
struct SdCardFontFamilyInfo {
|
|
std::string name; // directory name, e.g. "NotoSansCJK"
|
|
std::vector<SdCardFontFileInfo> files;
|
|
|
|
const SdCardFontFileInfo* findFile(uint8_t size, uint8_t style = 0) const;
|
|
bool hasSize(uint8_t size) const;
|
|
std::vector<uint8_t> availableSizes() const;
|
|
|
|
// Pick the file whose pointSize is closest to targetPtSize. On ties (equal
|
|
// distance) prefers the smaller pointSize so behaviour is deterministic
|
|
// across SD card layouts. Returns nullptr when files is empty.
|
|
const SdCardFontFileInfo* pickClosestSize(uint8_t targetPtSize) const;
|
|
};
|
|
|
|
class SdCardFontRegistry {
|
|
public:
|
|
static constexpr int MAX_SD_FAMILIES = 128;
|
|
static constexpr const char* FONTS_DIR = "/.crosspoint/fonts";
|
|
|
|
// Scan SD card, populate families_. Returns true if any families found.
|
|
bool discover();
|
|
|
|
const std::vector<SdCardFontFamilyInfo>& getFamilies() const { return families_; }
|
|
const SdCardFontFamilyInfo* findFamily(const std::string& name) const;
|
|
int getFamilyIndex(const std::string& name) const;
|
|
int getFamilyCount() const { return static_cast<int>(families_.size()); }
|
|
|
|
private:
|
|
std::vector<SdCardFontFamilyInfo> families_; // sorted alphabetically
|
|
|
|
static bool parseFilename(const char* filename, uint8_t& size, uint8_t& style);
|
|
void scanDirectory(const char* dirPath, SdCardFontFamilyInfo& family);
|
|
};
|