Method AdjustDocPanelSize

src/NppJsonViewer/JsonViewDlg.cpp:657–715

}

void JsonViewDlg::AdjustDocPanelSize(int nWidth, int nHeight)
{
    // Calculate desktop scale.
    float fDeskScale = CUtility::GetDesktopScale(_hSelf);

    auto newDeltaWidth = nWidth - m_lfInitialClientWidth - 2;    // -2 is used for margin
    auto addWidth      = static_cast<int>((newDeltaWidth - m_lfDeltaWidth) * fDeskScale);
    m_lfDeltaWidth     = newDeltaWidth;

    auto newDeltaHeight = nHeight - m_lfInitialClientHeight;
    auto addHeight      = static_cast<int>((newDeltaHeight - m_lfDeltaHeight) * fDeskScale);
    m_lfDeltaHeight     = newDeltaHeight;

    // elements that need to be resized horizontally
    const auto resizeWindowIDs = {IDC_EDT_SEARCH, IDC_TREE};

    // elements that need to be moved
    const auto moveWindowIDs = {IDC_BTN_SEARCH};

    // elements which requires both resizing and move
    const auto resizeAndMoveWindowIDs = {IDC_EDT_NODEPATH};

    const UINT flags = SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS | SWP_SHOWWINDOW;

    RECT rc;
    for (int id : resizeWindowIDs)
    {
        HWND hWnd = ::GetDlgItem(_hSelf, id);
        ::GetWindowRect(hWnd, &rc);
        int cx = rc.right - rc.left + addWidth;
        int cy = rc.bottom - rc.top;

        if (id == IDC_TREE)
            cy += addHeight;

        ::SetWindowPos(hWnd, NULL, 0, 0, cx, cy, SWP_NOMOVE | flags);
    }

    for (int id : moveWindowIDs)
    {
        HWND hWnd = GetDlgItem(_hSelf, id);
        ::GetWindowRect(hWnd, &rc);
        ::MapWindowPoints(NULL, _hSelf, (LPPOINT)&rc, 2);

        ::SetWindowPos(hWnd, NULL, rc.left + addWidth, rc.top, 0, 0, SWP_NOSIZE | flags);
    }

    for (int id : resizeAndMoveWindowIDs)
    {
        HWND hWnd = GetDlgItem(_hSelf, id);

        ::GetWindowRect(hWnd, &rc);
        int cx = rc.right - rc.left + addWidth;
        int cy = rc.bottom - rc.top;
        ::MapWindowPoints(NULL, _hSelf, (LPPOINT)&rc, 2);

        ::SetWindowPos(hWnd, NULL, rc.left, rc.top + addHeight, cx, cy, flags);
    }