/// <summary>
/// remove:add_new >=1:1
/// </summary>
/// <param name="index"></param>
/// <param name="removeLen"></param>
/// <param name="newGlyphIndex"></param>
public void Replace(int index, int removeLen, ushort newGlyphIndex)
{
//eg f-i ligation
//original f glyph and i glyph are removed
//and then replace with a single glyph
_glyphIndices.RemoveRange(index, removeLen);
_glyphIndices.Insert(index, newGlyphIndex);
//------------------------------------------------
_tmpGlypIndexBackup.Clear();
int endAt = index + removeLen;
for (int i = index; i < endAt; ++i)
{
_tmpGlypIndexBackup.Add(_mapGlyphIndexToUserChar[i]);
}
//------------------------------------------------
_tmpGlypIndexBackup.RemoveRange(index, removeLen);
//add new data
GlyphIndexToUserChar firstRemove = _tmpGlypIndexBackup[0];
//TODO: check if removeLen > ushort.Max
GlyphIndexToUserChar newMap = new GlyphIndexToUserChar(firstRemove.o_user_charOffset, (ushort)removeLen);
#if DEBUG
newMap.dbug_glyphIndex = newGlyphIndex;
#endif
//------------------------------------------------
_mapGlyphIndexToUserChar.Insert(index, newMap);
_tmpGlypIndexBackup.Clear();
}
public void CreateMapFromUserCharToGlyphIndics()
{
//(optional)
//this method should be called after we finish the substitution process
_mapUserCharToGlyphIndics.Clear();
//--------------------------------------
int userCharCount = _originalChars.Count;
for (int i = 0; i < userCharCount; ++i)
{
var charToGlyphMap = new UserCharToGlyphIndexMap();
#if DEBUG
charToGlyphMap.dbug_userCharIndex = (ushort)i;
charToGlyphMap.dbug_userChar = _originalChars[i];
#endif
_mapUserCharToGlyphIndics.Add(charToGlyphMap);
}
//--------------------------------------
//then fill with glyphindex to user char information
int glyphIndexCount = _glyphIndices.Count;
for (int i = 0; i < glyphIndexCount; ++i)
{
GlyphIndexToUserChar glyphIndexToUserChar = _mapGlyphIndexToUserChar[i];
//
UserCharToGlyphIndexMap charToGlyphIndexMap = _mapUserCharToGlyphIndics[glyphIndexToUserChar.o_user_charOffset];
charToGlyphIndexMap.AppendData((ushort)(i + 1), (glyphIndexToUserChar.len));
//replace with the changed value
_mapUserCharToGlyphIndics[glyphIndexToUserChar.o_user_charOffset] = charToGlyphIndexMap;
}
}
/// <summary>
/// add original char and its glyph index
/// </summary>
/// <param name="glyphIndex"></param>
public void AddGlyph(char originalChar, ushort glyphIndex)
{
_glyphIndices.Add(glyphIndex);
//so we can monitor what substituion process
_originalChars.Add(originalChar);
var glyphIndexToCharMap = new GlyphIndexToUserChar(_originalOffset, 1);
#if DEBUG
glyphIndexToCharMap.dbug_glyphIndex = glyphIndex;
#endif
_mapGlyphIndexToUserChar.Add(glyphIndexToCharMap);
_originalOffset++;
}
/// <summary>
/// remove: add_new 1:>=1
/// </summary>
/// <param name="index"></param>
/// <param name="removeLen"></param>
/// <param name="newGlyhIndex"></param>
public void Replace(int index, ushort[] newGlyphIndices)
{
_glyphIndices.RemoveAt(index);
_glyphIndices.InsertRange(index, newGlyphIndices);
GlyphIndexToUserChar cur = _mapGlyphIndexToUserChar[index];
_mapGlyphIndexToUserChar.RemoveAt(index);
//insert
int j = newGlyphIndices.Length;
for (int i = 0; i < j; ++i)
{
var newglyph = new GlyphIndexToUserChar(cur.o_user_charOffset, 1);
#if DEBUG
newglyph.dbug_glyphIndex = newGlyphIndices[i];
#endif
//can point to the same user char
_mapGlyphIndexToUserChar.Insert(index, newglyph);
}
}