iTextSharp.text.pdf.CFFFontSubset.BuildNewIndex C# (CSharp) Метод

        protected byte[] BuildNewIndex(int[] Offsets,Dictionary<int,int[]> Used,byte OperatorForUnusedEntries)
        {
            int unusedCount = 0;
            int Offset=0;
            int[] NewOffsets = new int[Offsets.Length];
            // Build the Offsets Array for the Subset
            for (int i=0;i<Offsets.Length;++i)
            {
                NewOffsets[i] = Offset;
                // If the object in the offset is also present in the used
                // HashMap then increment the offset var by its size
                if (Used.ContainsKey(i)) {
                    Offset += Offsets[i+1] - Offsets[i];
                } else {
                    // Else the same offset is kept in i+1.
                    unusedCount++;
                }
            }
            // Offset var determines the size of the object array
            byte[] NewObjects = new byte[Offset+unusedCount];
            // Build the new Object array
            int unusedOffset = 0;
            for (int i=0;i<Offsets.Length-1;++i)
            {
                int start = NewOffsets[i];
                int end = NewOffsets[i+1];
                NewOffsets[i] = start+unusedOffset;
                // If start != End then the Object is used
                // So, we will copy the object data from the font file
                if (start != end)
                {
                    // All offsets are Global Offsets relative to the begining of the font file.
                    // Jump the file pointer to the start address to read from.
                    buf.Seek(Offsets[i]);
                    // Read from the buffer and write into the array at start.
                    buf.ReadFully(NewObjects, start+unusedOffset, end-start);
                } else {
                    NewObjects[start+unusedOffset] = OperatorForUnusedEntries;
                    unusedOffset++;
                }
            }
            NewOffsets[Offsets.Length-1] += unusedOffset;
            // Use AssembleIndex to build the index from the offset & object arrays
            return AssembleIndex(NewOffsets,NewObjects);
        }