深入浅出 CPropertySheet

 

深入浅出 CPropertySheet
译者：徐景周(原作:)

为了最大限度的发挥属性页的效用，首先让我们先从 CPropertySheet 继承一个新类，取名为 CMyPropSheet.

接着便可以进行下面的各种操作:

l        隐藏属性页默认按钮

隐藏掉Apply应用按钮:

propsheet.m_psh.dwFlags |= PSH_NOAPPLYNOW;

或隐藏掉Cancel取消按钮:

CWnd *pWnd = GetDlgItem( IDCANCEL );pWnd->ShowWindow( FALSE );

 

l        移动属性页按钮

首先，要获取按钮的句柄，然后就可以象对待窗体一样处理它们了. 下面代码先隐藏掉Apply和Help铵钮，再把OK和Cancel按移动到右侧。

BOOL CMyPropSheet::OnInitDialog () {    BOOL bResult = CPropertySheet::OnInitDialog();     int ids [] = {IDOK, IDCANCEL};//, ID_APPLY_NOW, IDHELP };        // Hide Apply and Help buttons    CWnd *pWnd = GetDlgItem (ID_APPLY_NOW);    pWnd->ShowWindow (FALSE);    pWnd = GetDlgItem (IDHELP);    pWnd->ShowWindow (FALSE);        CRect rectBtn;    int nSpacing = 6;        // space between two buttons...     for( int i =0; i < sizeof(ids)/sizeof(int); i++)    {        GetDlgItem (ids [i])->GetWindowRect (rectBtn);                ScreenToClient (&rectBtn);        int btnWidth = rectBtn.Width();        rectBtn.left = rectBtn.left + (btnWidth + nSpacing)* 2;        rectBtn.right = rectBtn.right + (btnWidth + nSpacing)* 2;         GetDlgItem (ids [i])->MoveWindow(rectBtn);    }         return bResult;}

下面代码移动所有按钮到右侧，并且重新置属性页为合适的大小.

BOOL CMyPropSheet::OnInitDialog () {    BOOL bResult = CPropertySheet::OnInitDialog();         int ids[] = { IDOK, IDCANCEL, ID_APPLY_NOW };        CRect rectWnd;    CRect rectBtn;        GetWindowRect (rectWnd);    GetDlgItem (IDOK)->GetWindowRect (rectBtn);        int btnWidth = rectBtn.Width();    int btnHeight = rectBtn.Height();    int btnOffset = rectWnd.bottom - rectBtn.bottom;    int btnLeft = rectWnd.right - rectWnd.left;     rectWnd.bottom = rectBtn.top;    rectWnd.right = rectWnd.right + btnWidth + btnOffset;    MoveWindow(rectWnd);        rectBtn.left = btnLeft;    rectBtn.right = btnLeft + btnWidth;     for (int i = 0; i < sizeof (ids) / sizeof (int); i++)    {        rectBtn.top = (i + 1) * btnOffset + btnHeight * i;        rectBtn.bottom = rectBtn.top + btnHeight;        GetDlgItem (ids [i])->MoveWindow (rectBtn);    }        return bResult;}

l        改变属性页上的标签文字

首先修改TC_ITEM结构，然后用 SetItem 来修改标签文字，如下代码:

TC_ITEM item;item.mask = TCIF_TEXT;item.pszText = "New Label"; //Change the label of the first tab (0 is the index of the first tab)...GetTabControl ()->SetItem (0, &item);

l        改变属性页标签文字的字体属性

如下代码:

    m_NewFont.CreateFont (14, 0, 0, 0, 800, TRUE, 0, 0, 1, 0, 0, 0, 0, _T("Arial") );    GetTabControl()->SetFont (&m_NewFont);

l        在属性页标签上显示位图

可以用 CImageList 建立图像. 用 SetItem 来设置，如下代码所示:

BOOL CMyPropSheet::OnInitDialog (){    BOOL bResult = CPropertySheet::OnInitDialog();     m_imageList.Create (IDB_MYIMAGES, 13, 1, RGB(255,255,255));    CTabCtrl *pTabCtrl = GetTabControl ();    pTabCtrl->SetImageList (&m_imageList);        TC_ITEM item;    item.mask = TCIF_IMAGE;    for (int i = 0; i < NUMBER_OF_TABS; i++)    {        item.iImage = i;        pTabCtrl->SetItem (i, &item );    }     return bResult;}

l        在属性页左下角显示位图

如下代码所示：

void CMyPropSheet::OnPaint () {    CPaintDC dc(this); // device context for painting        int nOffset = 6;    // load IDB_BITMAP1 from our resources    CBitmap bmp;    if (bmp.LoadBitmap (IDB_BITMAP1))    {        // Get the size of the bitmap        BITMAP bmpInfo;        bmp.GetBitmap (&bmpInfo);                // Create an in-memory DC compatible with the        // display DC we´re using to paint        CDC dcMemory;        dcMemory.CreateCompatibleDC (&dc);                // Select the bitmap into the in-memory DC        CBitmap* pOldBitmap = dcMemory.SelectObject (&bmp);                // Find a bottom-left point for the bitmap in the client area        CRect rect;        GetClientRect (&rect);        int nX = rect.left + nOffset;        int nY = rect.top + (rect.Height () - bmpInfo.bmHeight) - nOffset;                // Copy the bits from the in-memory DC into the on-        // screen DC to actually do the painting. Use the centerpoint        // we computed for the target offset.        dc.BitBlt (nX, nY, bmpInfo.bmWidth, bmpInfo.bmHeight, &dcMemory,             0, 0, SRCCOPY);                dcMemory.SelectObject (pOldBitmap);    }     // Do not call CPropertySheet::OnPaint() for painting messages}

l        在属性页右下角显示3D文字Logo

如下代码：

void CMyPropSheet::OnPaint () {    /////////////////////////////////////////////////////////////////////////         //在TAB按钮旁边显示3D文字提示,jingzhou xu         Cstring m_LogoName = “属性页”;//         if(m_LogoName == "")//                return;          GetWindowRect(rect);         ScreenToClient(rect);                  LOGFONT logFont;         ZeroMemory((void*)&logFont,sizeof(logFont));         strcpy(logFont.lfFaceName,"宋体");         logFont.lfHeight = -12;         logFont.lfWeight = 400;         logFont.lfCharSet = GB2312_CHARSET;         logFont.lfOutPrecision = 3;         logFont.lfClipPrecision = 2;          logFont.lfQuality = 1;         logFont.lfPitchAndFamily = 2;         m_font.CreateFontIndirect(&logFont);         SetFont(&m_font);         CFont         *pOldFont = pDC->SelectObject(&m_font); 

                  rect.left += 6;
                  rect.right -= 6;
                  rect.bottom -= 1;
                  rect.top = rect.bottom - ITEMBUTTON_HEIGHT + 1;                   CFont m_LogoFont;         CString sLogoString;                       m_LogoFont.CreateFont(rect.Height()*4/5, 0, 0, 0, FW_BOLD, 1, FALSE, FALSE,                       DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,                       FIXED_PITCH | FF_ROMAN, "楷体_GB2312");                       sLogoString = m_LogoName;                       RECT m_rDataBox;         CopyRect(&m_rDataBox,&rect);                       TEXTMETRIC tm;         pDC->GetTextMetrics(&tm);         CFont* oldFont = pDC->SelectObject(&m_LogoFont);         CSize sz = pDC->GetTextExtent(sLogoString, sLogoString.GetLength());         //用GetTextExtent来计算字体logo大小，依靠于设备环境，使用logo位于右下角         m_rDataBox.left = m_rDataBox.right  - sz.cx - tm.tmAveCharWidth/2;         m_rDataBox.top  = m_rDataBox.bottom - sz.cy - tm.tmHeight/5;         pDC->SetBkMode(TRANSPARENT);         //用3D字体显示，先黑后白，最后再用默认色         COLORREF oldColor = pDC->SetTextColor(GetSysColor(COLOR_3DDKSHADOW));         pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);         m_rDataBox.left -= tm.tmAveCharWidth;         pDC->SetTextColor(GetSysColor(COLOR_3DHILIGHT));         pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);         m_rDataBox.left += 3*tm.tmAveCharWidth/5;         pDC->SetTextColor(RGB(0,0,255));         pDC->DrawText(sLogoString, sLogoString.GetLength(), &m_rDataBox, DT_VCENTER | DT_SINGLELINE | DT_CENTER);                       //释放资源         pDC->SelectObject(oldFont);         pDC->SetTextColor(oldColor);            m_LogoFont.DeleteObject();         /////////////////////////////////////////////////////////////////////////}
 
l        在属性页中动态加入其它控件 
下面演示如何在左下角加入一Edit控件:
In MyPropSheet.h:
public:    CEdit m_edit;
In MyPropSheet.cpp:
BOOL CMyPropSheet::OnInitDialog (){    BOOL bResult = CPropertySheet::OnInitDialog ();         CRect rect;        int nHeight = 24;    int nWidth = 120;    int nOffset = 6;        GetClientRect (&rect);     // Find a bottom-left point for the edit control in the client area    int nX = rect.left + nOffset;    int nY = rect.top + (rect.Height() - nHeight) - nOffset;        // finally create the edit control    m_Edit.CreateEx (WS_EX_CLIENTEDGE, _T("EDIT"), NULL,                     WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER,         nX, nY, nWidth, nHeight, m_hWnd, 0, 0 );     return bResult;}
 

 



           
原文转自：http://www.ltesting.net