/// <summary>
/// Load a named font, ready for use.
/// </summary>
public Font GetFont(string familyName, int weight, bool bold, bool italic, bool underline, bool strikeout)
{
// If we already have this font then don't duplicate it
Font font = null;
foreach (Font candidate in _fonts)
{
if (candidate.FamilyName.ToLower() != familyName.ToLower())
{
continue;
}
if (candidate.Bold != bold)
{
continue;
}
if (candidate.Italic != italic)
{
continue;
}
// If we get here then we've got a match
font = candidate;
break;
}
if (font != null)
{
return(font);
}
// Search our font directories for a file that implements
// the specified font
FontInfo info = FindFont(familyName, weight, bold, italic, underline, strikeout);
if (info == null)
{
string msg = "Font '" + familyName + "'";
if (bold)
{
msg += " bold";
}
if (italic)
{
msg += " italic";
}
if (underline)
{
msg += " underline";
}
if (strikeout)
{
msg += " strikeout";
}
msg += " not found, and no substitute found either.";
throw new Exception(msg);
}
// Create the real font
switch (info.Type)
{
case FontType.TrueType:
font = new TrueTypeFont(info.FileName);
break;
case FontType.Type1:
font = new Type1Font(info.FileName);
break;
}
_fonts.Add(font);
return(font);
}
/// <summary>
/// Load information about the font, but don't load the glyph data.
/// </summary>
public static FontInfo GetFontInfo(string filename)
{
string familyName = null;
string fontName = null;
bool bold = false;
bool italic = false;
#pragma warning disable 0219 // variable assigned but never used
bool underline = false;
bool strikeout = false;
#pragma warning restore 0219
using (StreamReader file = File.OpenText(filename))
{
// Type 1 starts with "StartFontMetrics"
string line = file.ReadLine();
if (!line.StartsWith("StartFontMetrics"))
{
return(null);
}
// Find the font name line
while (!file.EndOfStream)
{
line = file.ReadLine();
MatchCollection mc = Regex.Matches(line, @"^FamilyName (.+)");
if (mc.Count == 1)
{
familyName = mc[0].Groups[1].Captures[0].Value;
continue;
}
mc = Regex.Matches(line, @"^FontName (.+)");
if (mc.Count == 1)
{
fontName = mc[0].Groups[1].Captures[0].Value;
continue;
}
mc = Regex.Matches(line, @"^Weight (\w+)");
if (mc.Count == 1)
{
int weight = 0;
switch (mc[0].Groups[1].Captures[0].Value.ToLower())
{
case "thin": weight = 100; break;
case "extra-light": weight = 200; break;
case "light": weight = 300; break;
case "normal": weight = 400; break;
case "regular": weight = 400; break;
case "medium": weight = 500; break;
case "semi-bold": weight = 600; break;
case "demi-bold": weight = 600; break;
case "bold": weight = 700; break;
case "extra-bold": weight = 800; break;
case "ultra-bold": weight = 800; break;
case "black": weight = 900; break;
case "heavy": weight = 900; break;
default: weight = 400; break;
}
bold = weight >= 600;
continue;
}
mc = Regex.Matches(line, @"^ItalicAngle (-?\d+)");
if (mc.Count == 1)
{
float angle;
float.TryParse(mc[0].Groups[1].Captures[0].Value, out angle);
italic = angle != 0.0;
continue;
}
}
}
if (fontName == null)
{
return(null);
}
FontInfo info = new FontInfo(familyName, fontName, filename, FontType.Type1, bold, italic, false, false);
return(info);
}