Method DecimaltoWebsafe

ColorCop/ColorCopDlg.cpp:2471–2491

}

int CColorCopDlg::DecimaltoWebsafe(int originalDec) {
    // Convert an RGB component (0–255) to the nearest web‑safe value.
    // Web‑safe colors use steps of 51: {0, 51, 102, 153, 204, 255}.
    // We compute how far 'originalDec' is from the nearest step and
    // round down if the offset is small, otherwise round up.
    //
    // Example: 128 → offset 128 % 51 = 26 → round up to 153.

    const int offset = originalDec % WEBSAFE_STEP;

    if (offset == 0) {
        // Already exactly on a web‑safe boundary
        return originalDec;
    }

    // If we're closer to the lower boundary (offset < 25), round down.
    // Otherwise, round up to the next 51‑multiple.
    return (offset < WEBSAFE_STEP / 2)
               ? (originalDec - offset)
               : (originalDec + (WEBSAFE_STEP - offset));
}

void CColorCopDlg::OnOptionsOmitsymbol() {
    m_Appflags ^= OmitPound;