/// <summary>Gets or synthesises a glyph for the given style settings which include weight and italic. Style code 400 means regular.</summary>
public Glyph GetGlyph(int charcode, FontFaceFlags style)
{
// Try getting the face:
FontFace face = null;
if (FontFaces.TryGetValue(style, out face))
{
// Great! Raster using that font face:
return(face.GetGlyph(charcode));
}
// Get the code as an int:
int styleCode = (int)style;
// Italic?
bool italic = ((styleCode & 1) == 1);
// Get the font weight:
int weight = (styleCode & ~1);
if (weight == 0)
{
// Regular:
weight = 400;
}
int match = 0;
if (italic)
{
// Find one with the closest weight match.
face = BestWeight(Italics, weight, out match);
}
else if (weight == 400)
{
// Regular. Note that regular must be set - the family wouldn't exist otherwise.
return(Regular.GetGlyph(charcode));
}
else
{
// Find best weight match. Must also be not italic (this is why the bold set doesn't contain italic ones).
face = BestWeight(Bold, weight, out match);
}
if (face == null || match != 0)
{
// We're synthesizing!
if (face == null)
{
face = Regular;
}
// Derive from face.
face = face.CreateSynthetic(italic, weight);
}
return(face.GetGlyph(charcode));
}
/// <summary>Sets the weight of this face and if it's italic.</summary>
public void SetFlags(bool italic, int weight)
{
// Build the flags:
int flags = weight;
if (italic)
{
flags |= 1;
}
// Apply the flags:
StyleFlags = (FontFaceFlags)flags;
// Apply weight:
Weight = weight;
}
/// <summary>Adds the given font face to this family.</summary>
public void Add(FontFace font)
{
font.DisableExtrude = DisableExtrude;
// Grab the flags which represent the styling of this font:
FontFaceFlags flags = font.StyleFlags;
// Push:
FontFaces[flags] = font;
if (Regular == null || font.Regular)
{
Regular = font;
}
bool italic = font.Italic;
if (font.Bold && !italic)
{
if (Bold == null)
{
Bold = new List <FontFace>();
}
Bold.Add(font);
}
if (italic)
{
if (Italics == null)
{
Italics = new List <FontFace>();
}
Italics.Add(font);
}
}