CPropertySheet属性页的一些使用方法

2007.8.14 09:21 作者:shengzhcn

 

CPropertySheet 继承一个新类 CMyPropSheet.
接着便可以进行下面的各种操作:
 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 );
 
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;
}
 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);
 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);
 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;
}
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
}
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();
 /////////////////////////////////////////////////////////////////////////
}
 
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;
}


属性页的一些使用技巧
加入项目

举例如下:

1.在项目中加入MFC类CMyMainSheet,选择CPropertySheet作为其基类。

2.在项目中加入MFC类CMyPage1,CMyPage2,选择CPropertyPage作为基类,它们将作为属性对话框中的属性页。

弹出属性对话框


实现:

void PopupPropertyDlg()

       // 创建PropertySheet和PropertyPage

       CMyMainSheet mms(_T("MainSheet"), this);

       CMyPage1 mp1;

       CMyPage2 mp2;

 

       // 如果想要去掉“应用”和“帮助”按钮

       mms.m_psh.dwFlags |= PSH_NOAPPLYNOW;

       mms.m_psh.dwFlags &= ~PSH_HASHELP;

       mp1.m_psp.dwFlags &= ~PSP_HASHELP;

       mp2.m_psp.dwFlags &= ~PSP_HASHELP;

 

       // 设置各个属性页中元素的初值

       mp1.m_xxxx = ;

       mp2.m_xxxx = ;

 

       // 弹出对话框

       mms.AddPage(&mp1);

       mms.AddPage(&mp2);

       if(mms.DoModal() == IDOK)

 

       // 如果确定了,采取的操作

       // 注意,当执行到上面的代码时,UpdateData(True)已经被自动执行


PropertySheet中各种元素之间的交互

在复杂的对话框中,常常有这样的情况发生:当修改某一个PropertyPage中的控件时,该元素的值会影响属性页中其他控件,甚至是其他属性页中的控件的属性。如果通过直接发消息等方法来处理,这样的处理逻辑会遍布各个属性页,降低代码的可读和可修改性。我们采用PropertySheet作为中介者,这样的消息全部发送给PropertySheet,然后由它对涉及的PropertyPage中的控件进行处理。

 

比如,在mp1控件的Edit中是否填入值要影响mp2中Edit控件的Enable/Disable,我们可以这样做:

CMyPage1中加入消息响应函数,用于接收Edit控件的修改事件

OnEnChangeEdit()

调用PropertySheet的处理函数,而不是自己来处理

       CMyMainSheet* pmms = NULL;

       pmms = (CMyMainSheet*)GetParent();

       pmms->EnableSwitch();

CMyMainSheet中加入处理函数 

EnableSwitch

判断mp1中控件的值,来确定mp2中控件的Enable/Disable

       CString str1;

       GetPage(0)->GetDlgItemText(IDC_EDIT1, str1);

       if(_T("") == str1)

              GetPage(1)->GetDlgItem(IDC_EDIT1)->EnableWindow(FALSE);

       else

              GetPage(1)->GetDlgItem(IDC_EDIT1)->EnableWindow(TRUE);

 

 

你可以通过这个链接引用该篇文章:http://shengzhcn.bokee.com/viewdiary.17300073.html

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