cache library

Caching system library for symbol and image management.

This library provides comprehensive caching solutions for map rendering, including symbol caching, image loading, and cache management. The caching system is designed to optimize performance by reducing redundant loading and processing of graphical assets.

Key exports:

• FileSymbolCache: File-based symbol caching implementation
• ImageBundleLoader: Efficient loading of bundled image assets
• SymbolCacheMgr: Central management of symbol caching operations

Classes

FileSymbolCache

A cache for symbols (small bitmaps used in the map, e.g., stop signs, arrows).

ImageBundleLoader

An ImageLoader that loads image resources from a Flutter AssetBundle.

ImageFileLoader

An ImageLoader that loads image resources from the local file system.

SymbolCacheMgr

Central manager for symbol caching operations.