Method scrollToCursor

switch/source/MainScreen.cpp:252–264

}

void MainScreen::scrollToCursor(size_t count)
{
    const int totalRows = count == 0 ? 0 : (int)((count - 1) / GRID_COLS) + 1;
    const int maxScroll = std::max(0, totalRows - GRID_FULL_ROWS);
    const int row       = count == 0 ? 0 : (int)(mCursor / GRID_COLS);
    if (row < mScrollRow) {
        mScrollRow = row;
    }
    else if (row > mScrollRow + GRID_FULL_ROWS - 1) {
        mScrollRow = row - (GRID_FULL_ROWS - 1);
    }
    mScrollRow = std::clamp(mScrollRow, 0, maxScroll);
}

void MainScreen::updateGridCursor(const InputState& input, size_t count)
{