Method modifyFoldLevels

src/ScintillaNext.cpp:215–233

}

void ScintillaNext::modifyFoldLevels(int level, int action)
{
    const int totalLines = lineCount();

    int line = 0;
    while (line < totalLines) {
        int foldFlags = foldLevel(line); // Even though its called fold level it contains several other flags
        bool isHeader = foldFlags & SC_FOLDLEVELHEADERFLAG;
        int actualLevel = (foldFlags & SC_FOLDLEVELNUMBERMASK) - SC_FOLDLEVELBASE;

        if (isHeader && actualLevel == level) {
            foldLine(line, action);
            line = lastChild(line, -1) + 1;
        }
        else {
            ++line;
        }
    }
}

void ScintillaNext::foldAllLevels(int level)
{