自学教程：C++ wxGetCharSize函数代码示例

wxSize wxToggleButton::DoGetBestSize() const{   wxString                         label = wxGetWindowText(GetHWND());   int                              wBtn;   wxFont                           vFont =  GetFont();   int                              wChar;   int                              hChar;   GetTextExtent(label, &wBtn, NULL);   wxGetCharSize(GetHWND(), &wChar, &hChar, &vFont);   // add a margin - the button is wider than just its label   wBtn += 3*wChar;   // the button height is proportional to the height of the font used   int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);#if wxUSE_BUTTON   wxSize sz = wxButton::GetDefaultSize();   if (wBtn > sz.x)       sz.x = wBtn;   if (hBtn > sz.y)       sz.y = hBtn;#else   wxSize sz(wBtn, hBtn);#endif   return sz;}

wxSize wxStaticBox::DoGetBestSize() const{    wxSize best;    // Calculate the size needed by the label    int cx, cy;    wxGetCharSize(GetHWND(), &cx, &cy, GetFont());    int wBox;    GetTextExtent(GetLabelText(wxGetWindowText(m_hWnd)), &wBox, &cy);    wBox += 3*cx;    int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);    // If there is a sizer then the base best size is the sizer's minimum    if (GetSizer() != NULL)    {        wxSize cm(GetSizer()->CalcMin());        best = ClientToWindowSize(cm);        // adjust for a long label if needed        best.x = wxMax(best.x, wBox);    }    // otherwise the best size falls back to the label size    else    {        best = wxSize(wBox, hBox);    }    return best;}

int wxChoice::SetHeightSimpleComboBox(int nItems) const{    int cx, cy;    wxGetCharSize( GetHWND(), &cx, &cy, GetFont() );    int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, (WPARAM)-1, 0);    return EDIT_HEIGHT_FROM_CHAR_HEIGHT( cy ) * wxMin( wxMax( nItems, 3 ), 6 ) + hItem - 1;}

wxSize wxToggleButton::DoGetBestSize() const{   wxString label = wxGetWindowText(GetHWND());   int wBtn;   GetTextExtent(GetLabelText(label), &wBtn, NULL);   int wChar, hChar;   wxGetCharSize(GetHWND(), &wChar, &hChar, GetFont());   // add a margin - the button is wider than just its label   wBtn += 3*wChar;   // the button height is proportional to the height of the font used   int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);#if wxUSE_BUTTON   // make all buttons of at least standard size unless wxBU_EXACTFIT is given   if ( !HasFlag(wxBU_EXACTFIT) )   {       const wxSize szMin = wxButton::GetDefaultSize();       if ( wBtn < szMin.x )           wBtn = szMin.x;       if ( hBtn < szMin.y )           hBtn = szMin.y;   }#endif // wxUSE_BUTTON   wxSize sz(wBtn, hBtn);   CacheBestSize(sz);   return sz;}

wxSize wxChoice::DoGetBestSize() const{    //    // Find the widest string    //    int                             nLineWidth;    int                             nChoiceWidth = 0;    int                             nItems = GetCount();    int                             nCx;    int                             nCy;    wxFont                          vFont = (wxFont)GetFont();    for (int i = 0; i < nItems; i++)    {        wxString                    sStr(GetString(i));        GetTextExtent( sStr                      ,&nLineWidth                      ,NULL                     );        if (nLineWidth > nChoiceWidth)            nChoiceWidth = nLineWidth;    }    //    // Give it some reasonable default value if there are no strings in the    // list    //    if (nChoiceWidth == 0L)        nChoiceWidth = 100L;    //    // The combobox should be larger than the widest string    //    wxGetCharSize( GetHWND()                  ,&nCx                  ,&nCy                  ,&vFont                 );    nChoiceWidth += 5 * nCx;    //    // Choice drop-down list depends on number of items (limited to 10)    //    size_t                          nStrings = nItems == 0 ? 10 : wxMin(10, nItems) + 1;    int                             nChoiceHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy) * nStrings;    return wxSize( nChoiceWidth                  ,nChoiceHeight                 );} // end of wxChoice::DoGetBestSize

wxSize wxStaticBox::DoGetBestSize() const{    int cx, cy;    wxGetCharSize(GetHWND(), &cx, &cy, GetFont());    int wBox;    GetTextExtent(GetLabelText(wxGetWindowText(m_hWnd)), &wBox, &cy);    wBox += 3*cx;    int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);    wxSize best(wBox, hBox);    CacheBestSize(best);    return best;}

wxSize wxButton::DoGetBestSize() const{    wxString                        rsLabel = wxGetWindowText(GetHWND());    int                             nWidthButton;    int                             nWidthChar;    int                             nHeightChar;    wxFont                          vFont = (wxFont)GetFont();    GetTextExtent( rsLabel                  ,&nWidthButton                  ,NULL                 );    wxGetCharSize( GetHWND()                  ,&nWidthChar                  ,&nHeightChar                  ,&vFont                 );    //    // Add a margin - the button is wider than just its label    //    nWidthButton += 3 * nWidthChar;    //    // The button height is proportional to the height of the font used    //    int                             nHeightButton = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(nHeightChar);    //    // Need a little extra to make it look right    //    nHeightButton += (int)(nHeightChar/1.5);    if (!HasFlag(wxBU_EXACTFIT))    {        wxSize                      vSize = GetDefaultSize();        if (nWidthButton > vSize.x)            vSize.x = nWidthButton;        if (nHeightButton > vSize.y)            vSize.y = nHeightButton;        return vSize;    }    return wxSize( nWidthButton                  ,nHeightButton                 );} // end of wxButton::DoGetBestSize

wxSize wxListBox::DoGetBestSize() const{    //    // Find the widest string    //    int                             nLine;    int                             nListbox = 0;    int                             nCx;    int                             nCy;    wxFont                          vFont = (wxFont)GetFont();    for (int i = 0; i < m_nNumItems; i++)    {        wxString                    vStr(GetString(i));        GetTextExtent( vStr                      ,&nLine                      ,NULL                     );        if (nLine > nListbox)            nListbox = nLine;    }    //    // Give it some reasonable default value if there are no strings in the    // list.    //    if (nListbox == 0)        nListbox = 100;    //    // The listbox should be slightly larger than the widest string    //    wxGetCharSize( GetHWND()                  ,&nCx                  ,&nCy                  ,&vFont                 );    nListbox += 3 * nCx;    int                             hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy) * (wxMax(m_nNumItems, 7));    return wxSize( nListbox                  ,hListbox                 );} // end of wxListBox::DoGetBestSize

wxSize wxTextCtrl::DoGetBestSize() const{    int                             nCx;    int                             nCy;    wxFont                          vFont = (wxFont)GetFont();    wxGetCharSize(GetHWND(), &nCx, &nCy, &vFont);    int                             wText = DEFAULT_ITEM_WIDTH;    int                             hText = (int)(EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy) * .8);    if (m_windowStyle & wxTE_MULTILINE)    {        hText *= wxMax(GetNumberOfLines(), 5);    }    //else: for single line control everything is ok    return wxSize(wText, hText);} // end of wxTextCtrl::DoGetBestSize

wxSize wxSpinCtrl::DoGetSizeFromTextSize(int xlen, int ylen) const{    wxSize sizeBtn = wxSpinButton::DoGetBestSize();    int y;    wxGetCharSize(GetHWND(), NULL, &y, GetFont());    // JACS: we should always use the height calculated    // from above, because otherwise we'll get a spin control    // that's too big. So never use the height calculated    // from wxSpinButton::DoGetBestSize().    wxSize tsize(xlen + sizeBtn.x + MARGIN_BETWEEN + 3*y/10 + 10,                 EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));    // Check if the user requested a non-standard height.    if ( ylen > 0 )        tsize.IncBy(0, ylen - y);    return tsize;}

wxSize wxTextCtrl::DoGetBestSize() const{    int cx, cy;    wxGetCharSize(GetBuddyHwnd(), &cx, &cy, GetFont());    int wText = DEFAULT_ITEM_WIDTH;    int hText = cy;    if ( m_windowStyle & wxTE_MULTILINE )    {        hText *= wxMax(GetNumberOfLines(), 5);    }    //else: for single line control everything is ok    // we have to add the adjustments for the control height only once, not    // once per line, so do it after multiplication above    hText += EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy) - cy;    return wxSize(wText, hText);}

wxSize wxSpinCtrl::DoGetBestSize() const{    wxSize sizeBtn = wxSpinButton::DoGetBestSize();    sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;    int y;    wxGetCharSize(GetHWND(), NULL, &y, GetFont());    y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);    // JACS: we should always use the height calculated    // from above, because otherwise we'll get a spin control    // that's too big. So never use the height calculated    // from wxSpinButton::DoGetBestSize().    // if ( sizeBtn.y < y )    {        // make the text tall enough        sizeBtn.y = y;    }    return sizeBtn;}

wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const{    // the radiobox should be big enough for its buttons    int cx1, cy1;    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());    int extraHeight = cy1;    int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;    int width  = GetColumnCount() * (sizeBtn.x + cx1) + cx1;    // Add extra space under the label, if it exists.    if (!wxControl::GetLabel().empty())        height += cy1/2;    // and also wide enough for its label    int widthLabel;    GetTextExtent(GetLabelText(), &widthLabel, NULL);    widthLabel += RADIO_SIZE; // FIXME this is bogus too    if ( widthLabel > width )        width = widthLabel;    return wxSize(width, height);}

wxSize wxSpinCtrl::DoGetBestSize() const{    wxSize                          vSizeBtn = wxSpinButton::DoGetBestSize();    int                             nHeight;    wxFont                          vFont = (wxFont)GetFont();    vSizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;    wxGetCharSize( GetHWND()                  ,NULL                  ,&nHeight                  ,&vFont                 );    nHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nHeight)+4;    if (vSizeBtn.y < nHeight)    {        //        // Make the text tall enough        //        vSizeBtn.y = nHeight;    }    return vSizeBtn;} // end of wxSpinCtrl::DoGetBestSize

wxSize wxListBox::DoGetBestSize() const{    // find the widest string    int wLine;    int wListbox = 0;    for (unsigned int i = 0; i < m_noItems; i++)    {        wxString str(GetString(i));        GetTextExtent(str, &wLine, NULL);        if ( wLine > wListbox )            wListbox = wLine;    }    // give it some reasonable default value if there are no strings in the    // list    if ( wListbox == 0 )        wListbox = 100;    // the listbox should be slightly larger than the widest string    int cx, cy;    wxGetCharSize(GetHWND(), &cx, &cy, GetFont());    wListbox += 3*cx;    // Add room for the scrollbar    wListbox += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);    // don't make the listbox too tall (limit height to 10 items) but don't    // make it too small neither    int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*                    wxMin(wxMax(m_noItems, 3), 10);    wxSize best(wListbox, hListbox);    CacheBestSize(best);    return best;}

wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const{    // the radiobox should be big enough for its buttons    int cx1, cy1;    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());    int extraHeight = cy1;    int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;    int width  = GetColumnCount() * (sizeBtn.x + cx1) + cx1;    // Add extra space under the label, if it exists.    if (!wxControl::GetLabel().empty())        height += wxRendererNative::Get().GetCheckBoxSize(            reinterpret_cast<wxWindow*>(const_cast<wxRadioBox*>(this))).y / 2;    // and also wide enough for its label    int widthLabel;    GetTextExtent(GetLabelText(), &widthLabel, NULL);    if ( widthLabel > width )        width = widthLabel;    return wxSize(width, height);}

voidwxRadioBox::PositionAllButtons(int x, int y, int width, int WXUNUSED(height)){    wxSize maxSize = GetMaxButtonSize();    int maxWidth = maxSize.x,        maxHeight = maxSize.y;    // Now position all the buttons: the current button will be put at    // wxPoint(x_offset, y_offset) and the new row/column will start at    // startX/startY. The size of all buttons will be the same wxSize(maxWidth,    // maxHeight) except for the buttons in the last column which should extend    // to the right border of radiobox and thus can be wider than this.    // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in    // left to right order and GetMajorDim() is the number of columns while    // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and    // GetMajorDim() is the number of rows.    int cx1, cy1;    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());    int x_offset = x + cx1;    int y_offset = y + cy1;    // Add extra space under the label, if it exists.    if (!wxControl::GetLabel().empty())        y_offset += cy1/2;    int startX = x_offset;    int startY = y_offset;    const unsigned int count = GetCount();    for (unsigned int i = 0; i < count; i++)    {        // the last button in the row may be wider than the other ones as the        // radiobox may be wider than the sum of the button widths (as it        // happens, for example, when the radiobox label is very long)        bool isLastInTheRow;        if ( m_windowStyle & wxRA_SPECIFY_COLS )        {            // item is the last in its row if it is a multiple of the number of            // columns or if it is just the last item            unsigned int n = i + 1;            isLastInTheRow = ((n % GetMajorDim()) == 0) || (n == count);        }        else // wxRA_SPECIFY_ROWS        {            // item is the last in the row if it is in the last columns            isLastInTheRow = i >= (count/GetMajorDim())*GetMajorDim();        }        // is this the start of new row/column?        if ( i && (i % GetMajorDim() == 0) )        {            if ( m_windowStyle & wxRA_SPECIFY_ROWS )            {                // start of new column                y_offset = startY;                x_offset += maxWidth + cx1;            }            else // start of new row            {                x_offset = startX;                y_offset += maxHeight;                if (m_radioWidth[0]>0)                    y_offset += cy1/2;            }        }        int widthBtn;        if ( isLastInTheRow )        {            // make the button go to the end of radio box            widthBtn = startX + width - x_offset - 2*cx1;            if ( widthBtn < maxWidth )                widthBtn = maxWidth;        }        else        {            // normal button, always of the same size            widthBtn = maxWidth;        }        // make all buttons of the same, maximal size - like this they cover        // the radiobox entirely and the radiobox tooltips are always shown        // (otherwise they are not when the mouse pointer is in the radiobox        // part not belonging to any radiobutton)        DoMoveSibling((*m_radioButtons)[i], x_offset, y_offset, widthBtn, maxHeight);        // where do we put the next button?        if ( m_windowStyle & wxRA_SPECIFY_ROWS )        {            // below this one            y_offset += maxHeight;            if (m_radioWidth[0]>0)                y_offset += cy1/2;        }        else        {            // to the right of this one//.........这里部分代码省略.........

//.........这里部分代码省略.........    if ( sizeText.x <= 0 )    {        wxLogDebug(_T("not enough space for wxSpinCtrl!"));    }    wxPoint posBtn(pos);    posBtn.x += sizeText.x + MARGIN_BETWEEN;    // we need to turn '/n's into "/r/n"s for the multiline controls    wxString valueWin;    if ( m_windowStyle & wxTE_MULTILINE )    {        valueWin = wxTextFile::Translate(value, wxTextFileType_Dos);    }    else // single line    {        valueWin = value;    }    // we must create the list control before the spin button for the purpose    // of the dialog navigation: if there is a static text just before the spin    // control, activating it by Alt-letter should give focus to the text    // control, not the spin and the dialog navigation code will give focus to    // the next control (at Windows level), not the one after it    // create the text window    m_hwndBuddy = (WXHWND)::CreateWindowEx                    (                     exStyle,                // sunken border                     _T("EDIT"),             // window class                     valueWin,               // no window title                     msStyle,                // style (will be shown later)                     pos.x, pos.y,           // position                     0, 0,                   // size (will be set later)                     GetHwndOf(parent),      // parent                     (HMENU)-1,              // control id                     wxGetInstance(),        // app instance                     NULL                    // unused client data                    );    if ( !m_hwndBuddy )    {        wxLogLastError(wxT("CreateWindow(buddy text window)"));        return false;    }    // initialize wxControl    if ( !CreateControl(parent, id, posBtn, sizeBtn, style, validator, name) )        return false;    // now create the real HWND    WXDWORD spiner_style = WS_VISIBLE |                           UDS_ALIGNRIGHT |                           UDS_EXPANDABLE |                           UDS_NOSCROLL;    if ( !IsVertical(style) )        spiner_style |= UDS_HORZ;    if ( style & wxSP_WRAP )        spiner_style |= UDS_WRAP;    if ( !MSWCreateControl(UPDOWN_CLASS, spiner_style, posBtn, sizeBtn, _T(""), 0) )        return false;    // subclass the text ctrl to be able to intercept some events    wxSetWindowUserData(GetBuddyHwnd(), this);    m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),                                                wxBuddyTextCtrlWndProc);    // set up fonts and colours  (This is nomally done in MSWCreateControl)    InheritAttributes();    if (!m_hasFont)        SetFont(GetDefaultAttributes().font);    // set the size of the text window - can do it only now, because we    // couldn't call DoGetBestSize() before as font wasn't set    if ( sizeText.y <= 0 )    {        int cx, cy;        wxGetCharSize(GetHWND(), &cx, &cy, GetFont());        sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);    }    SetInitialSize(size);    (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);    // associate the list window with the spin button    (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)GetBuddyHwnd(), 0);    // do it after finishing with m_hwndBuddy creation to avoid generating    // initial wxEVT_COMMAND_TEXT_UPDATED message    ms_allTextSpins.Add(this);    return true;}

// Restored old code.void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags){    int currentX, currentY;    GetPosition(&currentX, &currentY);    int widthOld, heightOld;    GetSize(&widthOld, &heightOld);    int xx = x;    int yy = y;    if (x == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))        xx = currentX;    if (y == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))        yy = currentY;    int y_offset = 0;    int x_offset = 0;    int cx1, cy1;    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());    // Attempt to have a look coherent with other platforms: We compute the    // biggest toggle dim, then we align all items according this value.    wxSize maxSize = GetMaxButtonSize();    int maxWidth = maxSize.x,        maxHeight = maxSize.y;    wxSize totSize = GetTotalButtonSize(maxSize);    int totWidth = totSize.x,        totHeight = totSize.y;    // only change our width/height if asked for    if ( width == wxDefaultCoord )    {        if ( sizeFlags & wxSIZE_AUTO_WIDTH )            width = totWidth;        else            width = widthOld;    }    if ( height == wxDefaultCoord )    {        if ( sizeFlags & wxSIZE_AUTO_HEIGHT )            height = totHeight;        else            height = heightOld;    }    DoMoveWindow(xx, yy, width, height);    // Now position all the buttons: the current button will be put at    // wxPoint(x_offset, y_offset) and the new row/column will start at    // startX/startY. The size of all buttons will be the same wxSize(maxWidth,    // maxHeight) except for the buttons in the last column which should extend    // to the right border of radiobox and thus can be wider than this.    // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in    // left to right order and m_majorDim is the number of columns while    // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and    // m_majorDim is the number of rows.    x_offset += cx1;    y_offset += cy1;    // Add extra space under the label, if it exists.    if (!wxControl::GetLabel().empty())        y_offset += cy1/2;    int startX = x_offset;    int startY = y_offset;    const int count = GetCount();    for ( int i = 0; i < count; i++ )    {        // the last button in the row may be wider than the other ones as the        // radiobox may be wider than the sum of the button widths (as it        // happens, for example, when the radiobox label is very long)        bool isLastInTheRow;        if ( m_windowStyle & wxRA_SPECIFY_COLS )        {            // item is the last in its row if it is a multiple of the number of            // columns or if it is just the last item            int n = i + 1;            isLastInTheRow = ((n % m_majorDim) == 0) || (n == count);        }        else // wxRA_SPECIFY_ROWS        {            // item is the last in the row if it is in the last columns            isLastInTheRow = i >= (count/m_majorDim)*m_majorDim;        }        // is this the start of new row/column?        if ( i && (i % m_majorDim == 0) )        {            if ( m_windowStyle & wxRA_SPECIFY_ROWS )            {                // start of new column                y_offset = startY;                x_offset += maxWidth + cx1;//.........这里部分代码省略.........

//.........这里部分代码省略.........        // DEFAULT_ITEM_WIDTH is the default width for the text control        sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;    }    sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;    if ( sizeText.x <= 0 )    {        wxLogDebug(_T("not enough space for wxSpinCtrl!"));    }    wxPoint posBtn(pos);    posBtn.x += sizeText.x + MARGIN_BETWEEN;    // we must create the text control before the spin button for the purpose    // of the dialog navigation: if there is a static text just before the spin    // control, activating it by Alt-letter should give focus to the text    // control, not the spin and the dialog navigation code will give focus to    // the next control (at Windows level), not the one after it    // create the text window    m_hwndBuddy = (WXHWND)::CreateWindowEx                    (                     exStyle,                // sunken border                     _T("EDIT"),             // window class                     NULL,                   // no window title                     msStyle,                // style (will be shown later)                     pos.x, pos.y,           // position                     0, 0,                   // size (will be set later)                     GetHwndOf(parent),      // parent                     (HMENU)-1,              // control id                     wxGetInstance(),        // app instance                     NULL                    // unused client data                    );    if ( !m_hwndBuddy )    {        wxLogLastError(wxT("CreateWindow(buddy text window)"));        return false;    }    // create the spin button    if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )    {        return false;    }    wxSpinButtonBase::SetRange(min, max);    // subclass the text ctrl to be able to intercept some events    wxSetWindowUserData(GetBuddyHwnd(), this);    m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),                                                wxBuddyTextWndProc);    // set up fonts and colours  (This is nomally done in MSWCreateControl)    InheritAttributes();    if (!m_hasFont)        SetFont(GetDefaultAttributes().font);    // set the size of the text window - can do it only now, because we    // couldn't call DoGetBestSize() before as font wasn't set    if ( sizeText.y <= 0 )    {        int cx, cy;        wxGetCharSize(GetHWND(), &cx, &cy, GetFont());        sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);    }    SetInitialSize(size);    (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);    // associate the text window with the spin button    (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);    SetValue(initial);    // Set the range in the native control    SetRange(min, max);    if ( !value.empty() )    {        SetValue(value);        m_oldValue = (int) wxAtol(value);    }    else    {        SetValue(wxString::Format(wxT("%d"), initial));        m_oldValue = initial;    }    // do it after finishing with m_hwndBuddy creation to avoid generating    // initial wxEVT_COMMAND_TEXT_UPDATED message    ms_allSpins.Add(this);    return true;}

bool wxChoice::Create(  wxWindow*                         pParent, wxWindowID                        vId, const wxPoint&                    rPos, const wxSize&                     rSize, int                               n, const wxString                    asChoices[], long                              lStyle, const wxValidator&                rValidator, const wxString&                   rsName){    long                            lSstyle;    if (!CreateControl( pParent                       ,vId                       ,rPos                       ,rSize                       ,lStyle                       ,rValidator                       ,rsName                      ))        return false;    lSstyle = CBS_DROPDOWNLIST |              WS_TABSTOP       |              WS_VISIBLE;    // clipping siblings does not yet work    // if (lStyle & wxCLIP_SIBLINGS )    //     lSstyle |= WS_CLIPSIBLINGS;    wxASSERT_MSG( !(lStyle & wxCB_DROPDOWN) &&                  !(lStyle & wxCB_READONLY) &&                  !(lStyle & wxCB_SIMPLE),                  wxT("this style flag is ignored by wxChoice, you "                     "probably want to use a wxComboBox") );    if (!OS2CreateControl( wxT("COMBOBOX")                          ,lSstyle                         ))        return false;    //    // A choice/combobox normally has a white background (or other, depending    // on global settings) rather than inheriting the parent's background colour.    //    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));    // initialize the controls contents    for (int i = 0; i < n; i++)    {        Append(asChoices[i]);    }    SetSize( rPos.x            ,rPos.y            ,rSize.x            ,rSize.y           );    // Set height to use with sizers i.e. without the dropdown listbox    wxFont vFont = GetFont();    int  nEditHeight;    wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont );    nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight);    SetInitialSize(wxSize(-1,nEditHeight+4));   // +2x2 for the border    return true;} // end of wxChoice::Create

//.........这里部分代码省略.........        sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;    }    sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;    if ( sizeText.x <= 0 )    {        wxLogDebug(wxT("not enough space for wxSpinCtrl!"));    }    wxPoint posBtn(pos);    posBtn.x += sizeText.x + MARGIN_BETWEEN;    // we must create the text control before the spin button for the purpose    // of the dialog navigation: if there is a static text just before the spin    // control, activating it by Alt-letter should give focus to the text    // control, not the spin and the dialog navigation code will give focus to    // the next control (at Windows level), not the one after it    // create the text window    m_hwndBuddy = (WXHWND)::CreateWindowEx                    (                     exStyle,                // sunken border                     wxT("EDIT"),             // window class                     NULL,                   // no window title                     msStyle,                // style (will be shown later)                     pos.x, pos.y,           // position                     0, 0,                   // size (will be set later)                     GetHwndOf(parent),      // parent                     (HMENU)-1,              // control id                     wxGetInstance(),        // app instance                     NULL                    // unused client data                    );    if ( !m_hwndBuddy )    {        wxLogLastError(wxT("CreateWindow(buddy text window)"));        return false;    }    // create the spin button    if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )    {        return false;    }    wxSpinButtonBase::SetRange(min, max);    // subclass the text ctrl to be able to intercept some events    gs_spinForTextCtrl[GetBuddyHwnd()] = this;    m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),                                                wxBuddyTextWndProc);    // set up fonts and colours  (This is nomally done in MSWCreateControl)    InheritAttributes();    if (!m_hasFont)        SetFont(GetDefaultAttributes().font);    // set the size of the text window - can do it only now, because we    // couldn't call DoGetBestSize() before as font wasn't set    if ( sizeText.y <= 0 )    {        int cx, cy;        wxGetCharSize(GetHWND(), &cx, &cy, GetFont());        sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);    }    SetInitialSize(size);    (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);    // associate the text window with the spin button    (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);    // If the initial text value is actually a number, it overrides the    // "initial" argument specified later.    long initialFromText;    if ( value.ToLong(&initialFromText) )        initial = initialFromText;    SetValue(initial);    m_oldValue = initial;    // Set the range in the native control    SetRange(min, max);    // Also set the text part of the control if it was specified independently    // but don't generate an event for this, it would be unexpected.    m_blockEvent = true;    if ( !value.empty() )        SetValue(value);    m_blockEvent = false;    return true;}

bool wxComboBox::Create(  wxWindow*                         pParent, wxWindowID                        vId, const wxString&                   rsValue, const wxPoint&                    rPos, const wxSize&                     rSize, int                               n, const wxString                    asChoices[], long                              lStyle, const wxValidator&                rValidator, const wxString&                   rsName){    m_isShown = false;    if (!CreateControl( pParent                       ,vId                       ,rPos                       ,rSize                       ,lStyle                       ,rValidator                       ,rsName                      ))        return false;    //    // Get the right style    //    long                            lSstyle = 0L;    lSstyle = WS_TABSTOP   |              WS_VISIBLE;    // clipping siblings does not yet work    // if (lStyle & wxCLIP_SIBLINGS )    //     lSstyle |= WS_CLIPSIBLINGS;    if (lStyle & wxCB_READONLY)        lSstyle |= CBS_DROPDOWNLIST;    else if (lStyle & wxCB_SIMPLE)        lSstyle |= CBS_SIMPLE; // A list (shown always) and edit control    else        lSstyle |= CBS_DROPDOWN;    if (!OS2CreateControl( wxT("COMBOBOX")                          ,lSstyle                         ))        return false;    //    // A choice/combobox normally has a white background (or other, depending    // on global settings) rather than inheriting the parent's background colour.    //    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));    for (int i = 0; i < n; i++)    {        Append(asChoices[i]);    }    SetSize( rPos.x            ,rPos.y            ,rSize.x            ,rSize.y           );    // Set height to use with sizers i.e. without the dropdown listbox    wxFont vFont = GetFont();    int nEditHeight;    wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont );    nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight);    SetInitialSize(wxSize(-1,nEditHeight+4));   // +2x2 for the border    if (!rsValue.empty())    {        SetValue(rsValue);    }    gfnWndprocEdit = (WXFARPROC)::WinSubclassWindow( (HWND)GetHwnd()                                                    ,(PFNWP)wxComboEditWndProc                                                   );    ::WinSetWindowULong(GetHwnd(), QWL_USER, (ULONG)this);    Show(true);    return true;} // end of wxComboBox::Create

void wxRadioBox::DoSetSize(  int                               nX, int                               nY, int                               nWidth, int                               nHeight, int                               nSizeFlags){    //    // Input parameters assume wxWidgets coordinate system    //    int                             nCurrentX;    int                             nCurrentY;    int                             nWidthOld;    int                             nHeightOld;    int                             nXx = nX;    int                             nYy = nY;    int                             nXOffset = nXx;    int                             nYOffset = nYy;    int                             nCx1;    int                             nCy1;    wxSize                          vMaxSize = GetMaxButtonSize();    int                             nMaxWidth;    int                             nMaxHeight;    wxSize                          vTotSize;    int                             nTotWidth;    int                             nTotHeight;    int                             nStartX;    int                             nStartY;    wxFont                          vFont = GetFont();    m_nSizeFlags = nSizeFlags;    GetPosition( &nCurrentX                ,&nCurrentY               );    GetSize( &nWidthOld            ,&nHeightOld           );    if (nX == wxDefaultCoord && !(nSizeFlags & wxSIZE_ALLOW_MINUS_ONE))        nXx = nCurrentX;    if (nY == wxDefaultCoord && !(nSizeFlags & wxSIZE_ALLOW_MINUS_ONE))        nYy = nCurrentY;    if (nYy < 0)        nYy = 0;    if (nXx < 0)        nXx = 0;    wxGetCharSize( m_hWnd                  ,&nCx1                  ,&nCy1                  ,&vFont                 );    //    // Attempt to have a look coherent with other platforms: We compute the    // biggest toggle dim, then we align all items according this value.    //    vMaxSize   = GetMaxButtonSize();    nMaxWidth  = vMaxSize.x;    nMaxHeight = vMaxSize.y;    vTotSize   = GetTotalButtonSize(vMaxSize);    nTotWidth  = vTotSize.x;    nTotHeight = vTotSize.y;    //    // Only change our width/height if asked for    //    if (nWidth == -1)    {        if (nSizeFlags & wxSIZE_AUTO_WIDTH )            nWidth = nTotWidth;        else            nWidth = nWidthOld;    }    if (nHeight == -1)    {        if (nSizeFlags & wxSIZE_AUTO_HEIGHT)            nHeight = nTotHeight;        else            nHeight = nHeightOld;    }    //    // Now convert to OS/2 coordinate system    //    wxWindowOS2*                    pParent = (wxWindowOS2*)GetParent();    if (pParent)        nYy = GetOS2ParentHeight(pParent) - nYy - nHeight;    else    {        RECTL                       vRect;        ::WinQueryWindowRect(HWND_DESKTOP, &vRect);        nYy = vRect.yTop - nYy - nHeight;    }    nYOffset = nYy + nHeight;    ::WinSetWindowPos( GetHwnd()                      ,HWND_TOP//.........这里部分代码省略.........