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Calculate the progress in the book by file sizes of each chapter. (#38)

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## Summary

Addresses #35.

Maybe it could be wise to do some caching of the spine sizes (but
performance isn't too bad).
This commit is contained in:
Jonas Diemer
2025-12-17 13:05:24 +01:00
committed by GitHub
parent 11f01d3a41
commit c78f2a9840
3 changed files with 39 additions and 2 deletions
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8
lib/Epub/Epub.h
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@@ -20,6 +20,8 @@ class Epub {
std::string filepath;
// the spine of the EPUB file
std::vector<std::pair<std::string, std::string>> spine;
// the file size of the spine items (proxy to book progress)
std::vector<size_t> cumulativeSpineItemSize;
// the toc of the EPUB file
std::vector<EpubTocEntry> toc;
// the base path for items in the EPUB file
@@ -51,8 +53,12 @@ class Epub {
bool getItemSize(const std::string& itemHref, size_t* size) const;
std::string& getSpineItem(int spineIndex);
int getSpineItemsCount() const;
EpubTocEntry& getTocItem(int tocTndex);
size_t getCumulativeSpineItemSize(const int spineIndex) const;
EpubTocEntry& getTocItem(int tocIndex);
int getTocItemsCount() const;
int getSpineIndexForTocIndex(int tocIndex) const;
int getTocIndexForSpineIndex(int spineIndex) const;
size_t getBookSize() const;
uint8_t calculateProgress(const int currentSpineIndex, const float currentSpineRead);
};