public IImage GetImage(IBaseContext context, GEDCOMIndividualRecord iRec)
{
if (context == null || iRec == null)
{
return(null);
}
IImage result = null;
// get multimedia UID
string imageUID = context.GetPrimaryBitmapUID(iRec);
// portrait doesn't define for individual
if (string.IsNullOrEmpty(imageUID))
{
return(null);
}
string cachedFile = GetCachedFilename(imageUID);
// check in-memory cache
if (fMemoryCache.TryGetValue(cachedFile, out result))
{
return(result);
}
// in-memory cache doesn't contain image
// check cache folder by multimedia UID
if (File.Exists(cachedFile))
{
result = AppHost.GfxProvider.LoadImage(cachedFile);
}
// if cache doesn't contain the image, then load and save it to cache
if (result == null)
{
result = context.GetPrimaryBitmap(iRec, -1, -1, true);
// save image to cache
if (result != null)
{
AppHost.GfxProvider.SaveImage(result, cachedFile);
}
}
// put new image from disk's cache or storage to memory cache
if (result != null)
{
fMemoryCache.Add(cachedFile, result);
}
// return result image
return(result);
}