private void tableList_SelectedIndexChanged(object sender, EventArgs e)
{
// TODO: load and show the data in the selected font table.
var tableData = _font.GetTable(tableList.Text.Substring(0, 4));
tableProperties.SelectedObject = tableData;
}
private static void ReadAvailableFonts(string basePath)
{
if (!Directory.Exists(basePath))
{
return;
}
// Font file names usually bear little resemblance to the family and style names.
// Our portable GDI reads the whole font library and jumps into headers to find the names.
// This is time and memory expensive, so we cache the results aggressively
var allFiles = Directory.EnumerateFiles(basePath, "*.ttf", SearchOption.AllDirectories).ToList();
foreach (var file in allFiles)
{
try
{
var ttf = new TrueTypeFont(file);
var nameTable = ttf.GetTable("name") as TtfTableName;
if (nameTable?.Names == null)
{
continue;
}
var names = nameTable.Names
.Where(n => n.NameId == 1 || (n.NameId == 4 && EnglishLanguage(n))).ToList(); // 1 = 'family name' (like "Courier New"); 4 = style name (like "Courier New Bold");
foreach (var name in names)
{
var key = name.PlatformId == 3 && name.EncodingId == 1
? Encoding.BigEndianUnicode.GetString(name.ByteStringValue)
: Encoding.UTF8.GetString(name.ByteStringValue);
if (LooksLikeBadName(key))
{
continue;
}
if (!_fontCache.ContainsKey(key))
{
_fontCache.Add(key, file);
}
}
}
catch (BadImageFormatException)
{
Console.WriteLine($"Not a true-type file: {file}");
}
catch (Exception ex)
{
var str = ex.ToString();
Console.WriteLine(str);
// ignoring
}
}
}