Dave Allie 5e24895f6d
feat: Extract author from XTC/XTCH files (#563)
## Summary

* Extract author from XTC/XTCH files

## Additional Context

* Based on updated details in
https://gist.github.com/CrazyCoder/b125f26d6987c0620058249f59f1327d

---

### AI Usage

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please be transparent about their usage as it
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Did you use AI tools to help write this code? No
2026-01-27 22:56:51 +11:00

105 lines
2.7 KiB
C++

/**
* Xtc.h
*
* Main XTC ebook class for CrossPoint Reader
* Provides EPUB-like interface for XTC file handling
*/
#pragma once
#include <memory>
#include <string>
#include <vector>
#include "Xtc/XtcParser.h"
#include "Xtc/XtcTypes.h"
/**
* XTC Ebook Handler
*
* Handles XTC file loading, page access, and cover image generation.
* Interface is designed to be similar to Epub class for easy integration.
*/
class Xtc {
std::string filepath;
std::string cachePath;
std::unique_ptr<xtc::XtcParser> parser;
bool loaded;
public:
explicit Xtc(std::string filepath, const std::string& cacheDir) : filepath(std::move(filepath)), loaded(false) {
// Create cache key based on filepath (same as Epub)
cachePath = cacheDir + "/xtc_" + std::to_string(std::hash<std::string>{}(this->filepath));
}
~Xtc() = default;
/**
* Load XTC file
* @return true on success
*/
bool load();
/**
* Clear cached data
* @return true on success
*/
bool clearCache() const;
/**
* Setup cache directory
*/
void setupCacheDir() const;
// Path accessors
const std::string& getCachePath() const { return cachePath; }
const std::string& getPath() const { return filepath; }
// Metadata
std::string getTitle() const;
std::string getAuthor() const;
bool hasChapters() const;
const std::vector<xtc::ChapterInfo>& getChapters() const;
// Cover image support (for sleep screen)
std::string getCoverBmpPath() const;
bool generateCoverBmp() const;
// Thumbnail support (for Continue Reading card)
std::string getThumbBmpPath() const;
bool generateThumbBmp() const;
// Page access
uint32_t getPageCount() const;
uint16_t getPageWidth() const;
uint16_t getPageHeight() const;
uint8_t getBitDepth() const; // 1 = XTC (1-bit), 2 = XTCH (2-bit)
/**
* Load page bitmap data
* @param pageIndex Page index (0-based)
* @param buffer Output buffer
* @param bufferSize Buffer size
* @return Number of bytes read
*/
size_t loadPage(uint32_t pageIndex, uint8_t* buffer, size_t bufferSize) const;
/**
* Load page with streaming callback
* @param pageIndex Page index
* @param callback Callback for each chunk
* @param chunkSize Chunk size
* @return Error code
*/
xtc::XtcError loadPageStreaming(uint32_t pageIndex,
std::function<void(const uint8_t* data, size_t size, size_t offset)> callback,
size_t chunkSize = 1024) const;
// Progress calculation
uint8_t calculateProgress(uint32_t currentPage) const;
// Check if file is loaded
bool isLoaded() const { return loaded; }
// Error information
xtc::XtcError getLastError() const;
};