Method calcTopLineInFile

src/difftextwindow.cpp:2029–2039

Search for the first visible line (search loop needed when no line exists for this file.)

// Search for the first visible line (search loop needed when no line exists for this file.)
LineRef DiffTextWindow::calcTopLineInFile(const LineRef firstLine) const
{
    LineRef currentLine;
    for(size_t i = convertLineToDiff3LineIdx(firstLine); i < d->getDiff3LineVector()->size(); ++i)
    {
        const Diff3Line* d3l = (*d->getDiff3LineVector())[i];
        currentLine = d3l->getLineInFile(getWindowIndex());
        if(currentLine.isValid()) break;
    }
    return currentLine;
}

void DiffTextWindowFrame::setFirstLine(const LineRef firstLine)
{