public byte[] Get(int page, double height)
{
SoraxPDFRendererCacheEntry cache_entry = GetCacheEntry(page, height);
if (null != cache_entry)
{
return(cache_entry.image);
}
else
{
return(null);
}
}
private SoraxPDFRendererCacheEntry GetCacheEntry(int page, double height)
{
for (int i = 0; i < cache_entries.Count; ++i)
{
SoraxPDFRendererCacheEntry cache_entry = cache_entries[i];
if (cache_entry.page == page && cache_entry.height == height)
{
return(cache_entry);
}
}
return(null);
}
public void Put(int page, double height, byte[] image)
{
// Nothing to do if we have the Image, except perhaps store the latest version
SoraxPDFRendererCacheEntry cache_entry = GetCacheEntry(page, height);
if (null != cache_entry)
{
cache_entry.image = image;
}
else
{
// We have to bump someopne from the cache...
if (cache_entries.Count > CACHE_SIZE)
{
cache_entries.RemoveAt(0);
}
// ...and add the new guy
cache_entries.Add(new SoraxPDFRendererCacheEntry {
page = page, height = height, image = image
});
}
}