findsheet.cpp

Visual_C++[1].NET_Bible1 Visual_C++宝典书中的全部源码

// FindSheet.cpp : implementation file
//

#include "stdafx.h"
#include "ModalDemo.h"
#include "FindSheet.h"

#define RESULTS_TAB_INDEX 1
#define RESULTS_TAB_CAPTION "Results: %ld books found"

IMPLEMENT_DYNAMIC(CFindSheet, CPropertySheet)
CFindSheet::CFindSheet(UINT nIDCaption, CWnd* pParentWnd, UINT iSelectPage)
	:CPropertySheet(nIDCaption, pParentWnd, iSelectPage)
{
}

CFindSheet::CFindSheet(LPCTSTR pszCaption, CWnd* pParentWnd, UINT iSelectPage)
	:CPropertySheet(pszCaption, pParentWnd, iSelectPage)
{
}

CFindSheet::~CFindSheet()
{
}


BEGIN_MESSAGE_MAP(CFindSheet, CPropertySheet)
END_MESSAGE_MAP()


// CFindSheet message handlers

BOOL CFindSheet::OnInitDialog()
{
 BOOL bResult = CPropertySheet::OnInitDialog();

 // remove apply and cancel buttons
 int ids[] = {ID_APPLY_NOW, IDCANCEL};
 for (int i = 0; i < sizeof ids / sizeof ids[0]; i++) 
 {
  CWnd* pWnd = GetDlgItem(ids[i]);
  ASSERT(pWnd);
//  if (pWnd) pWnd->ShowWindow(FALSE);
 }

 // move ok button to upper right side of sheet
  CWnd* pbtnOk = GetDlgItem(IDOK);
  ASSERT(pbtnOk);

  CRect rectSheet;
  GetWindowRect(rectSheet);

  // Get size of OK button.
  CRect rectOkBtn;
  pbtnOk->GetWindowRect(rectOkBtn);

  // Get border space between btn bottom and sheet bottom.
  int iBorder = rectSheet.bottom - rectOkBtn.bottom;

  // Resize sheet.
  rectSheet.right += rectOkBtn.Width() + iBorder;
  rectSheet.bottom = rectOkBtn.top;
//  MoveWindow(rectSheet);

  // Find first page.
  CPropertyPage* pPage = GetPage(0);
  ASSERT(pPage);
  CRect rectPage;
  pPage->GetWindowRect(rectPage);

  // Save width and height.
  int cxOk = rectOkBtn.Width();
  int cyOk = rectOkBtn.Height();

  // Move OK button.
  rectOkBtn.top = rectPage.top;
  rectOkBtn.bottom = rectOkBtn.top + cyOk;
  rectOkBtn.left = rectSheet.right - (cxOk + iBorder);
  rectOkBtn.right = rectOkBtn.left + cxOk;
  ScreenToClient(rectOkBtn);
//  pbtnOk->MoveWindow(rectOkBtn);

  // Recaption the OK button
//  pbtnOk->SetWindowText("Cl&ose");

  // This will also diable the second tab
//  SetResults(0);

  // Set the tab fonts
  m_fontTab.CreateFont(-8, 0, 0, 0, FW_BOLD, 0, 0,
    0, 1, 0, 0, 0, 0, _T("MS Sans Serif"));
  CTabCtrl* pTab = GetTabControl();
  ASSERT(pTab);
  if (pTab)
  {
//  pTab->SetFont(&m_fontTab);
  }

  return bResult;
}

void CFindSheet::DisablePage(int iFirstPage, ...)
{
 int iPage = iFirstPage;

 va_list marker;
 va_start (marker, iFirstPage);
 int nArgs = 0;

 while (iPage != -1)
 {
  // Add page to disabled page index array.
  m_arrDisabledPages.Add(iPage);

  SetDisabledText(iPage);

  // Get next page index.
  iPage = va_arg(marker, UINT);

  // The list MUST end with a -1!!!
  ASSERT(nArgs++ < 100);
 }
}

void CFindSheet::SetDisabledText(int iPage)
{
 CTabCtrl* pTab = GetTabControl();
 ASSERT(pTab);
 TC_ITEM ti;
 char szText[100];
 ti.mask = TCIF_TEXT;
 ti.pszText = szText;
 ti.cchTextMax = 100;
 VERIFY(pTab->GetItem(iPage, &ti));
 strcat(szText, DISABLED_TEXT);
 VERIFY(pTab->SetItem(iPage, &ti));
}

BOOL CFindSheet::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult) 
{
 NMHDR* pnmh = (NMHDR*)lParam;
 ASSERT(pnmh);
 if (TCN_SELCHANGING == pnmh->code)
 {
  m_iLastActivePage = GetActiveIndex();
 }
 else if (TCN_SELCHANGE == pnmh->code)
 {
  int iCurrPage = GetActiveIndex();
  if (IsPageDisabled(iCurrPage))
  {
   PostMessage(PSM_SETCURSEL, m_iLastActivePage);
  }
 }

 return CPropertySheet::OnNotify(wParam,
  lParam, pResult);
}

BOOL CFindSheet::IsPageDisabled(int iPage)
{
 BOOL bFoundEntry = FALSE;
 int iSize = m_arrDisabledPages.GetSize();

 int i = 0;
 while (i < iSize && !bFoundEntry)
 {
  if (m_arrDisabledPages.GetAt(i) == (UINT)iPage) 
  {
   bFoundEntry = TRUE;
  }
  else
  {
   i++;
  }
 }

 return bFoundEntry;
}

void CFindSheet::EnablePage(int iPage)
{
 BOOL bFoundEntry = FALSE;
 int iSize = m_arrDisabledPages.GetSize();

 int i = 0;
 while (i < iSize && !bFoundEntry)
 {
  if (m_arrDisabledPages.GetAt(i) == (UINT)iPage)
  {
   bFoundEntry = TRUE;
  }
  else
  {
   i++;
  } 
 }

 if (bFoundEntry)
 {
  m_arrDisabledPages.RemoveAt(i);
  SetEnabledText(iPage);
 }
}

void CFindSheet::SetEnabledText(int iPage)
{
 CTabCtrl* pTab = GetTabControl();
 ASSERT(pTab);
 TC_ITEM ti;
 char szText[100];
 ti.mask = TCIF_TEXT;
 ti.pszText = szText;
 ti.cchTextMax = 100;
 VERIFY(pTab->GetItem(iPage, &ti));
 char* pFound = strstr(szText, DISABLED_TEXT);
 if (pFound)
 {
  *pFound = '\0';
  VERIFY(pTab->SetItem(iPage, &ti));
 }
}

void CFindSheet::SetResults(int nHits)
{
 SetResultsTabCaption(nHits);
 if (0 == nHits)
 {
  DisablePage(1, -1);
 }
 else
 {
  EnablePage(1);
 }
}

void CFindSheet::SetResultsTabCaption(int nHits)
{
 CTabCtrl* pTab = GetTabControl();
 ASSERT(pTab);
 TC_ITEM ti;
 char szText[100];
 ti.mask = TCIF_TEXT;
 ti.pszText = szText;
 ti.cchTextMax = 100;
 VERIFY(pTab->GetItem(RESULTS_TAB_INDEX, &ti));

 sprintf(szText, RESULTS_TAB_CAPTION, nHits);
 VERIFY(pTab->SetItem(RESULTS_TAB_INDEX, &ti));
}

BOOL CFindSheet::PreTranslateMessage(MSG* pMsg)
{
 BOOL bHandledMsg = FALSE;

 switch(pMsg->message)
 {
  case WM_SYSKEYDOWN:
  {
   // You only want 0-9 and letters.
   if ((0x2f < pMsg->wParam)
     && (0x5b > pMsg->wParam))
   {
    CTabCtrl *pTab = GetTabControl();
    ASSERT(pTab);

    TC_ITEM ti;
    char szText[100];
    ti.mask = TCIF_TEXT;
    ti.pszText = szText;

    char szMnemonic[3];
    sprintf(szMnemonic, "&%c", pMsg->wParam);

    BOOL bFoundMatchingPage = FALSE;
    int iCurrPage = 0;
    while ((iCurrPage < pTab->GetItemCount())
      && (!bFoundMatchingPage))
    {
     ti.cchTextMax = 99;
     pTab->GetItem(iCurrPage, &ti);

     CString strText = szText;
     strText.MakeUpper();
     if (-1 != strText.Find(szMnemonic))
     {
      bFoundMatchingPage = TRUE;
      if (!IsPageDisabled(iCurrPage))
      {
       SetActivePage(iCurrPage);
       bHandledMsg = TRUE;
      }
     }
     else
     {
      iCurrPage++;
     }
    }
   }
  }
  break;

  default: break;
 }

 return (TRUE == bHandledMsg ? 
  TRUE : CPropertySheet::PreTranslateMessage(pMsg));
}