IFAKA adfeee063f Handle empty spine in getBookSize() and calculateProgress() (#67) ... ## Problem - `getBookSize()` calls `getCumulativeSpineItemSize(getSpineItemsCount() - 1)` which passes -1 when spine is empty - `calculateProgress()` then divides by zero when book size is 0 ## Fix - Return 0 from `getBookSize()` if spine is empty - Return 0 from `calculateProgress()` if book size is 0 ## Testing - Builds successfully with `pio run` - Affects: `lib/Epub/Epub.cpp`		2025-12-19 23:28:36 +11:00
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Epub	Bugfix/word spacing indented (#59)	2025-12-19 08:45:20 +11:00
Epub.cpp	Handle empty spine in getBookSize() and calculateProgress() (#67)	2025-12-19 23:28:36 +11:00
Epub.h	Caching of spine item sizes for faster book loading (saves 1-4 seconds). (#54)	2025-12-18 22:49:14 +11:00