internal static GDIFont GetOrCreateFont(Dictionary <string, GDIFont> gdiFonts, string fontFamily, float fontSize, RPLFormat.FontWeights fontWeight, RPLFormat.FontStyles fontStyle, RPLFormat.TextDecorations textDecoration)
{
string key = GetKey(fontFamily, fontSize, fontWeight, fontStyle, textDecoration);
if (gdiFonts.TryGetValue(key, out GDIFont value))
{
return(value);
}
bool bold = SharedRenderer.IsWeightBold(fontWeight);
bool italic = fontStyle == RPLFormat.FontStyles.Italic;
bool underLine = false;
bool lineThrough = false;
switch (textDecoration)
{
case RPLFormat.TextDecorations.Underline:
underLine = true;
break;
case RPLFormat.TextDecorations.LineThrough:
lineThrough = true;
break;
}
Font font = null;
try
{
font = FontCache.CreateGdiPlusFont(fontFamily, fontSize, ref bold, ref italic, lineThrough, underLine);
value = new GDIFont(key, font, fontSize);
gdiFonts.Add(key, value);
return(value);
}
catch
{
if (font != null && !gdiFonts.ContainsKey(key))
{
font.Dispose();
font = null;
}
throw;
}
}
private static string GetKey(string fontFamily, float fontSize, RPLFormat.FontWeights fontWeight, RPLFormat.FontStyles fontStyle, RPLFormat.TextDecorations textDecoration)
{
StringBuilder stringBuilder = new StringBuilder("FO");
stringBuilder.Append(fontFamily);
stringBuilder.Append(fontSize.ToString(CultureInfo.InvariantCulture));
if (SharedRenderer.IsWeightBold(fontWeight))
{
stringBuilder.Append('b');
}
else
{
stringBuilder.Append('n');
}
if (fontStyle == RPLFormat.FontStyles.Italic)
{
stringBuilder.Append('i');
}
else
{
stringBuilder.Append('n');
}
switch (textDecoration)
{
case RPLFormat.TextDecorations.Underline:
stringBuilder.Append('u');
break;
case RPLFormat.TextDecorations.LineThrough:
stringBuilder.Append('s');
break;
default:
stringBuilder.Append('n');
break;
}
return(stringBuilder.ToString());
}