public void CreateMapFromUserCodePointToGlyphIndices(List <UserCodePointToGlyphIndex> mapUserCodePointToGlyphIndex)
{
//(optional)
//this method should be called after we finish the substitution process
//--------------------------------------
int codePointCount = _inputCodePointIndexList.Count;
for (int i = 0; i < codePointCount; ++i)
{
//
var codePointToGlyphIndexMap = new UserCodePointToGlyphIndex();
//set index that point to original codePointIndex
codePointToGlyphIndexMap.userCodePointIndex = _inputCodePointIndexList[i];
//
mapUserCodePointToGlyphIndex.Add(codePointToGlyphIndexMap);
}
//--------------------------------------
//then fill the user-codepoint with glyph information information
int glyphIndexCount = _glyphIndices.Count;
for (int i = 0; i < glyphIndexCount; ++i)
{
GlyphIndexToUserCodePoint glyphIndexToUserCodePoint = _mapGlyphIndexToUserCodePoint[i];
//
UserCodePointToGlyphIndex charToGlyphIndexMap = mapUserCodePointToGlyphIndex[glyphIndexToUserCodePoint.o_codepoint_charOffset];
charToGlyphIndexMap.AppendData((ushort)(i + 1), (glyphIndexToUserCodePoint.len));
//replace with the changed value
mapUserCodePointToGlyphIndex[glyphIndexToUserCodePoint.o_codepoint_charOffset] = charToGlyphIndexMap;
}
}
/// <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);
//------------------------------------------------
GlyphIndexToUserCodePoint firstRemove = _mapGlyphIndexToUserCodePoint[index];
#if DEBUG
_tmpGlypIndexBackup.Clear();
int endAt = index + removeLen;
for (int i = index; i < endAt; ++i)
{
_tmpGlypIndexBackup.Add(_mapGlyphIndexToUserCodePoint[i]);
}
_tmpGlypIndexBackup.Clear();
#endif
//TODO: check if removeLen > ushort.Max
GlyphIndexToUserCodePoint newMap = new GlyphIndexToUserCodePoint(firstRemove.o_codepoint_charOffset, (ushort)removeLen);
#if DEBUG
newMap.dbug_glyphIndex = newGlyphIndex;
#endif
//------------------------------------------------
_mapGlyphIndexToUserCodePoint.RemoveRange(index, removeLen);
_mapGlyphIndexToUserCodePoint.Insert(index, newMap);
}
//
public void GetGlyphIndexAndMap(int index, out ushort glyphIndex, out ushort input_codepointOffset, out ushort input_mapLen)
{
glyphIndex = _glyphIndices[index];
GlyphIndexToUserCodePoint glyphIndexToUserCodePoint = _mapGlyphIndexToUserCodePoint[index];
input_codepointOffset = glyphIndexToUserCodePoint.o_codepoint_charOffset;
input_mapLen = glyphIndexToUserCodePoint.len;
}
/// <summary>
/// add codepoint index and its glyph index
/// </summary>
/// <param name="codePointIndex">index to codepoint element in code point array</param>
/// <param name="glyphIndex">map to glyphindex</param>
public void AddGlyph(int codePointIndex, ushort glyphIndex)
{
//so we can monitor what substituion process
_inputCodePointIndexList.Add(codePointIndex);
_glyphIndices.Add(glyphIndex);
var glyphIndexToCharMap = new GlyphIndexToUserCodePoint(_originalCodePointOffset, 1);
#if DEBUG
//glyphIndexToCharMap.dbug_glyphIndex = glyphIndex;
#endif
_mapGlyphIndexToUserCodePoint.Add(glyphIndexToCharMap);
_originalCodePointOffset++;
}
/// <summary>
/// remove: add_new 1:>=1
/// </summary>
/// <param name="index"></param>
/// <param name="newGlyphIndices"></param>
public void Replace(int index, ushort[] newGlyphIndices)
{
_glyphIndices.RemoveAt(index);
_glyphIndices.InsertRange(index, newGlyphIndices);
GlyphIndexToUserCodePoint cur = _mapGlyphIndexToUserCodePoint[index];
_mapGlyphIndexToUserCodePoint.RemoveAt(index);
//insert
int j = newGlyphIndices.Length;
for (int i = 0; i < j; ++i)
{
var newglyph = new GlyphIndexToUserCodePoint(cur.o_codepoint_charOffset, 1);
#if DEBUG
//newglyph.dbug_glyphIndex = newGlyphIndices[i];
#endif
//may point to the same user char
_mapGlyphIndexToUserCodePoint.Insert(index, newglyph);
}
}
