深入浅出 CPropertySheet

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2024-11-06 12:26:01 207人阅读

深入浅出 CPropertySheet
译者：徐景周(原作:Mustafa Demirhan)

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:

一、隐藏属性页默认按钮

隐藏掉Apply应用按钮:

CWnd *pWnd = GetDlgItem( IDCANCEL );<span style="font-family: Helvetica, Tahoma, Arial, sans-serif;">//隐藏掉Cancel取消按钮:</span>
pWnd->ShowWindow( FALSE );

//--隐藏应用、帮助、确定、取消按钮

CWnd *pWnd = GetDlgItem (ID_APPLY_NOW);
	if(pWnd && pWnd->GetSafeHwnd())
    pWnd->ShowWindow (FALSE);
	
    pWnd = GetDlgItem (IDHELP);
	if(pWnd && pWnd->GetSafeHwnd())
    pWnd->ShowWindow (FALSE);

	 pWnd = GetDlgItem (IDOK);
	if(pWnd && pWnd->GetSafeHwnd())
    pWnd->ShowWindow (FALSE);

	 pWnd = GetDlgItem (IDCANCEL);
	if(pWnd && pWnd->GetSafeHwnd())
    pWnd->ShowWindow (FALSE);

二、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;
}

三、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:

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

四、改变属性页标签文字的字体属性

代码如下:

<span style="white-space:pre">	</span>m_NewFont.CreateFont (14, 0, 0, 0, 800, TRUE, 0, 0, 1, 0, 0, 0, 0, _T("Arial") );
       GetTabControl()->SetFont (&m_NewFont);

五、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;
}

六、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
}

七、在属性页右下角显示3D文字Logo

代码如下:

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();
/////////////////////////////////////////////////////////////////////////
}

八、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:

MyPropSheet.h中:public:
    CEdit m_edit;

MyPropSheet.cpp中: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;
}

九、上述方法去掉按钮后，在界面下方的按钮会消失，但是会留下空白，需要重新调整窗口，消除空白，此时可以考虑如下方法：

去掉四个按钮后消除界面下方的空白。

//添加在CPropertySheet类的OnInitDialog()函数中，可以消除隐藏按钮后留下的空白。

//去除空白
	GetDlgItem(IDOK)->ShowWindow(SW_HIDE);
	GetDlgItem(IDHELP)->ShowWindow(SW_HIDE);
	GetDlgItem(IDCANCEL)->ShowWindow(SW_HIDE);
	GetDlgItem(ID_APPLY_NOW)->ShowWindow(SW_HIDE);
	//获取窗体尺寸
	CRect btnRect;
	GetDlgItem(IDCANCEL)->GetWindowRect(&btnRect);
	CRect wdnRect;
	GetWindowRect(&wdnRect);
	//调整窗体大小
	::SetWindowPos(this->m_hWnd, HWND_TOP,0,0,0,0,SWP_SHOWWINDOW|SWP_NOSIZE);

深入浅出 CPropertySheet

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首页 > 代码库 > 深入浅出 CPropertySheet

深入浅出 CPropertySheet

一、隐藏属性页默认按钮

隐藏掉Apply应用按钮:

//--隐藏应用、帮助、确定、取消 按钮

二、移动属性页按钮

移动所有按钮到右侧，并且重新置属性页为合适的大小:

三、改变属性页上的标签文字

四、改变属性页标签文字的字体属性

五、在属性页标签上显示位图

六、在属性页左下角显示位图

七、在属性页右下角显示3D文字Logo

八、在属性页中动态加入其它控件

九、上述方法去掉按钮后，在界面下方的按钮会消失，但是会留下空白，需要重新调整窗口，消除空白，此时可以考虑如下方法：

看完仍有疑问？有类似问题直接问程序猿

//--隐藏应用、帮助、确定、取消按钮