internal FontSelectorCache(FontSet defaultFontSet)
{
System.Diagnostics.Debug.Assert(defaultFontSet != null);
this.defaultSelectors = new FontSelectorCache.FontSetSelectors();
this.defaultSelectors.Update(defaultFontSet);
this.defaultFontSet = defaultFontSet;
}
private bool Update(FontSelectorCache.FontSetSelectors selectors, FontSet fontSet)
{
bool updated = false;
if (defaultSelectors.Update(defaultFontSet))
{
updated = true;
}
if (selectors != null && selectors.Update(fontSet))
{
updated = true;
}
return(updated);
}
internal virtual void Put(FontSelectorKey key, FontSelector fontSelector, FontSet fontSet)
{
if (fontSet == null)
{
Put(key, fontSelector);
}
else
{
FontSelectorCache.FontSetSelectors selectors = caches.Get(fontSet.GetId());
if (selectors == null)
{
caches.Put(fontSet.GetId(), selectors = new FontSelectorCache.FontSetSelectors());
}
//update selectors and defaultSelectors to reset counter before pushing if needed.
Update(selectors, fontSet);
selectors.map.Put(key, fontSelector);
}
}
internal virtual FontSelector Get(FontSelectorKey key, FontSet fontSet)
{
if (fontSet == null)
{
return(Get(key));
}
else
{
FontSelectorCache.FontSetSelectors selectors = caches.Get(fontSet.GetId());
if (selectors == null)
{
caches.Put(fontSet.GetId(), selectors = new FontSelectorCache.FontSetSelectors());
}
if (Update(selectors, fontSet))
{
return(null);
}
else
{
return(selectors.map.Get(key));
}
}
}