public override SelectedTypeface Select(List <InstalledTypeface> choices, UnicodeRangeInfo unicodeRangeInfo, int hintCodePoint)
{
//request font may have hint for typeface
if (_reqFont != null)
{
for (int i = 0; i < _reqFont.OtherChoicesCount; ++i)
{
RequestFont.Choice choice = _reqFont.GetOtherChoice(i);
ResolvedFont resolvedFont = _textService.ResolveFont(choice);
//check if resolvedFont support specific unicodeRange info or not
Typeface typeface = resolvedFont.Typeface;
ushort codepoint = typeface.GetGlyphIndex(unicodeRangeInfo.StartCodepoint);
if (codepoint > 0)
{
//use this
return(new SelectedTypeface(typeface));
}
}
}
List <PreferredTypeface> list = null;
if (unicodeRangeInfo == Unicode13RangeInfoList.Emoticons)
{
list = _emojiPreferList;
}
else if (_dics.TryGetValue(unicodeRangeInfo.Name, out PreferredTypefaceList foundList))
{
list = foundList;
}
if (list != null)
{
int j = list.Count;
for (int i = 0; i < j; ++i)
{
//select that first one
PreferredTypeface p = list[i];
if (p.InstalledTypeface == null && !p.ResolvedInstalledTypeface)
{
//find
int choice_count = choices.Count;
for (int m = 0; m < choice_count; ++m)
{
InstalledTypeface instTypeface = choices[m];
if (p.RequestTypefaceName == instTypeface.FontName)
{
//TODO: review here again
p.InstalledTypeface = instTypeface;
break;
}
}
p.ResolvedInstalledTypeface = true;
}
//-------
if (p.InstalledTypeface != null)
{
return(new SelectedTypeface(p.InstalledTypeface));
}
}
}
//still not found
if (choices.Count > 0)
{
//choose default
return(new SelectedTypeface(choices[0]));
}
return(new SelectedTypeface());//empty
}
public ResolvedFont ResolveFont(RequestFont.Choice choice)
{
ResolvedFont resolvedFont = RequestFont.Choice.GetResolvedFont1 <ResolvedFont>(choice);
if (resolvedFont != null)
{
return(resolvedFont);
}
Typeface typeface;
if (choice.Src != null) //specific path to...
{
//this may not be loaded
//so check if we have that file or not
typeface = _installedTypefaceCollection.ResolveTypefaceFromFile(choice.Src);
if (typeface != null)
{
//found
//TODO: handle FontStyle ***
resolvedFont = new ResolvedFont(typeface, choice.SizeInPoints);
RequestFont.Choice.SetResolvedFont1(choice, resolvedFont);
return(resolvedFont);
}
}
int reqKey = choice.GetReqKey();
//cache level-2 (stored in this openfont service)
if (_resolvedTypefaceCache.TryGetValue(reqKey, out resolvedFont))
{
if (resolvedFont.Typeface == null)
{
//this is 'not found' resovled font
//so don't return it
return(null);
}
//----
//cache to level-1
RequestFont.Choice.SetResolvedFont1(choice, resolvedFont);
return(resolvedFont);
}
//-----
//when not found
//find it
if ((typeface = _installedTypefaceCollection.ResolveTypeface(choice.Name,
PixelFarm.Drawing.FontStyleExtensions.ConvToInstalledFontStyle(choice.Style),
choice.WeightClass)) != null)
{
//NOT NULL=> found
if (!_resolvedTypefaceCache.TryGetValue(reqKey, out resolvedFont))
{
resolvedFont = new ResolvedFont(typeface, choice.SizeInPoints);
//** cache it with otherChoice.GetFontKey()**
_resolvedTypefaceCache.Add(reqKey, resolvedFont);
}
return(resolvedFont);
}
return(null);
}
