/// <summary>
/// Repopulates the mappings from the given character set.
/// </summary>
/// <param name="characterSet">The character set to be read from.</param>
/// <param name="codes">A list of all numerical encodings in the font, sorted by index.</param>
public void ReadFrom(CharacterSet characterSet, IList <int> codes)
{
ushort code;
ushort index;
this.unknown = 0;
this.mappings.Clear();
IList <Character> chars = characterSet.Characters;
this.type = characterSet.MapType;
switch (this.MapType)
{
// Type 0: Codes and indices are assigned in ascending order
case CharacterMapType.Range:
this.startCode = (ushort)chars[0].Code;
this.endCode = (ushort)chars[chars.Count - 1].Code;
for (int i = 0; i < chars.Count; i++)
{
code = (ushort)chars[i].Code;
index = (ushort)codes.IndexOf(code);
this.mappings.Add(code, index);
}
break;
// Type 1: Codes are assigned in ascending order to the specified indices
case CharacterMapType.List:
this.startCode = (ushort)chars[0].Code;
this.endCode = (ushort)chars[chars.Count - 1].Code;
code = this.startCode;
for (int i = 0; i < chars.Count; i++, code++)
{
for (; chars[i].Code > code; code++)
{
this.mappings.Add(code, Blank);
}
index = (ushort)codes.IndexOf(code);
this.mappings.Add(code, index);
}
break;
// Type 2: Codes and indices are assigned individually
case CharacterMapType.Map:
this.startCode = 0x0000;
this.endCode = 0xFFFF;
for (int i = 0; i < chars.Count; i++)
{
code = (ushort)chars[i].Code;
index = (ushort)codes.IndexOf(code);
this.mappings.Add(code, index);
}
break;
}
}
/// <summary>
/// Adds the given character set to the font.
/// The new set must not contain any characters with codes that already exist in the font.
/// </summary>
/// <param name="characterSet">The character set to add to the font.</param>
public void AddCharacterSet(CharacterSet characterSet)
{
foreach (Character character in characterSet.Characters)
{
if (this.codeToChar.ContainsKey(character.Code))
{
throw new ArgumentException("A character with code " + character.Code + " already exists in the font.");
}
}
this.characterSets.Add(characterSet);
this.RebuildIndices();
}
