edit.c

C语言编程中算法数据结构中的树行代码

//=============================================================================
//
//  EditSaveFile()
//
BOOL EditSaveFile(HWND hwnd,LPCSTR pszFile,int iCodePage,BOOL bSaveCopy)
{

  HANDLE hFile;
  BOOL   bWriteSuccess;

  LPSTR lpData;
  DWORD cbData;
  DWORD dwBytesWritten;

  hFile = CreateFile(pszFile,
                     GENERIC_WRITE,
                     FILE_SHARE_READ|FILE_SHARE_WRITE,
                     NULL,
                     OPEN_ALWAYS,
                     FILE_ATTRIBUTE_NORMAL,
                     NULL);

  // failure could be due to missing attributes (2k/XP)
  if (hFile == INVALID_HANDLE_VALUE)
  {
    DWORD dwAttributes = GetFileAttributes(pszFile);
    if (dwAttributes != INVALID_FILE_ATTRIBUTES)
    {
      dwAttributes = dwAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM);
      hFile = CreateFile(pszFile,
                        GENERIC_WRITE,
                        FILE_SHARE_READ|FILE_SHARE_WRITE,
                        NULL,
                        OPEN_ALWAYS,
                        FILE_ATTRIBUTE_NORMAL | dwAttributes,
                        NULL);
    }
  }

  if (hFile == INVALID_HANDLE_VALUE)
    return FALSE;

  // ensure consistent line endings
  if (bFixLineEndings)
    SendMessage(hwnd,SCI_CONVERTEOLS,SendMessage(hwnd,SCI_GETEOLMODE,0,0),0);

  // get text
  cbData = SendMessage(hwnd,SCI_GETLENGTH,0,0);
  lpData = GlobalAlloc(GPTR,cbData + 1);
  SendMessage(hwnd,SCI_GETTEXT,GlobalSize(lpData),(LPARAM)lpData);

  if (cbData == 0)
    bWriteSuccess = SetEndOfFile(hFile);

  else
  {
    SetEndOfFile(hFile);

    if (iCodePage & NCP_UNICODE)
    {
      LPWSTR lpDataWide;
      int    cbDataWide;
      CPINFO cpi;
      UINT   uCP_UTF8;

      // UTF-8 text is interpreted as ANSI when saving as Unicode on Windows 95
      uCP_UTF8 = (GetCPInfo(CP_UTF8, &cpi) || IsValidCodePage(CP_UTF8)) ? CP_UTF8 : CP_ACP;

      lpDataWide = GlobalAlloc(GPTR,cbData * 2 + 16);
      cbDataWide = MultiByteToWideChar(uCP_UTF8,0,lpData,cbData,lpDataWide,GlobalSize(lpDataWide));

      if (iCodePage & NCP_UNICODE_BOM) {
        if (iCodePage & NCP_UNICODE_REVERSE)
          WriteFile(hFile,(LPCVOID)"\xFE\xFF",2,&dwBytesWritten,NULL);
        else
          WriteFile(hFile,(LPCVOID)"\xFF\xFE",2,&dwBytesWritten,NULL);
        }

      if (iCodePage & NCP_UNICODE_REVERSE)
        _swab((char*)lpDataWide,(char*)lpDataWide,cbDataWide * sizeof(WCHAR));

      bWriteSuccess = WriteFile(hFile,lpDataWide,cbDataWide * sizeof(WCHAR),&dwBytesWritten,NULL);

      GlobalFree(lpData);
    }

    else if (iCodePage & NCP_UTF8)
    {
      if (iCodePage & NCP_UTF8_SIGN)
        WriteFile(hFile,(LPCVOID)"\xEF\xBB\xBF",3,&dwBytesWritten,NULL);

      bWriteSuccess = WriteFile(hFile,lpData,cbData,&dwBytesWritten,NULL);
    }

    else // convert text to 8bit
    {
      //LPWSTR lpDataWide = GlobalAlloc(GPTR,cbData * 2 + 16);
      //int    cbDataWide = MultiByteToWideChar(CP_UTF8,0,lpData,cbData,lpDataWide,GlobalSize(lpDataWide));

      //ZeroMemory(lpData,GlobalSize(lpData));
      //cbData = WideCharToMultiByte(CP_ACP,0,lpDataWide,cbDataWide,lpData,GlobalSize(lpData),NULL,NULL);
      //GlobalFree(lpDataWide);

      bWriteSuccess = WriteFile(hFile,lpData,cbData,&dwBytesWritten,NULL);

      GlobalFree(lpData);
    }
  }

  CloseHandle(hFile);

  if (bWriteSuccess)
  {
    if (!bSaveCopy)
      SendMessage(hwnd,SCI_SETSAVEPOINT,0,0);

    return TRUE;
  }

  else
    return FALSE;

}


//=============================================================================
//
//  EditMakeUppercase()
//
void EditMakeUppercase(HWND hwnd)
{
  int cchTextW;
  int iCurPos;
  int iAnchorPos;
  UINT cpEdit;
  int i;
  BOOL bChanged = FALSE;

  iCurPos    = SendMessage(hwnd,SCI_GETCURRENTPOS,0,0);
  iAnchorPos = SendMessage(hwnd,SCI_GETANCHOR,0,0);

  if (iCurPos != iAnchorPos)
  {
    if (SC_SEL_RECTANGLE != SendMessage(hwnd,SCI_GETSELECTIONMODE,0,0))
    {
      int iSelCount = SendMessage(hwnd,SCI_GETSELECTIONEND,0,0) -
                        SendMessage(hwnd,SCI_GETSELECTIONSTART,0,0);

      LPSTR  pszText  = GlobalAlloc(GPTR,(iSelCount)+2);
      LPWSTR pszTextW = GlobalAlloc(GPTR,(iSelCount*2)+2);

      if (pszText == NULL || pszTextW == NULL) {
        GlobalFree(pszText);
        GlobalFree(pszTextW);
        return;
      }

      SendMessage(hwnd,SCI_GETSELTEXT,0,(LPARAM)pszText);

      cpEdit = SendMessage(hwnd,SCI_GETCODEPAGE,0,0);

      cchTextW = MultiByteToWideChar(cpEdit,0,pszText,iSelCount,pszTextW,GlobalSize(pszTextW) / sizeof(WCHAR));

      for (i = 0; i < cchTextW; i++) {
        if (IsCharLowerW(pszTextW[i])) {
          pszTextW[i] = LOWORD(CharUpperW((LPWSTR)MAKELONG(pszTextW[i],0)));
          bChanged = TRUE;
        }
      }

      if (bChanged) {

        WideCharToMultiByte(cpEdit,0,pszTextW,cchTextW,pszText,GlobalSize(pszText),NULL,NULL);
        GlobalFree(pszTextW);

        SendMessage(hwnd,SCI_BEGINUNDOACTION,0,0);
        SendMessage(hwnd,SCI_CLEAR,0,0);
        SendMessage(hwnd,SCI_ADDTEXT,(WPARAM)iSelCount,(LPARAM)pszText);
        SendMessage(hwnd,SCI_SETSEL,(WPARAM)iAnchorPos,(LPARAM)iCurPos);
        SendMessage(hwnd,SCI_ENDUNDOACTION,0,0);

        GlobalFree(pszText);
      }

      else
        GlobalFree(pszTextW);

    }
    else
      MsgBox(MBINFO,IDS_SELRECT);
  }
}


//=============================================================================
//
//  EditMakeLowercase()
//
void EditMakeLowercase(HWND hwnd)
{
  int cchTextW;
  int iCurPos;
  int iAnchorPos;
  UINT cpEdit;
  int i;
  BOOL bChanged = FALSE;

  iCurPos    = SendMessage(hwnd,SCI_GETCURRENTPOS,0,0);
  iAnchorPos = SendMessage(hwnd,SCI_GETANCHOR,0,0);

  if (iCurPos != iAnchorPos)
  {
    if (SC_SEL_RECTANGLE != SendMessage(hwnd,SCI_GETSELECTIONMODE,0,0))
    {
      int iSelCount = SendMessage(hwnd,SCI_GETSELECTIONEND,0,0) -
                        SendMessage(hwnd,SCI_GETSELECTIONSTART,0,0);

      LPSTR  pszText  = GlobalAlloc(GPTR,(iSelCount)+2);
      LPWSTR pszTextW = GlobalAlloc(GPTR,(iSelCount*2)+2);

      if (pszText == NULL || pszTextW == NULL) {
        GlobalFree(pszText);
        GlobalFree(pszTextW);
        return;
      }

      SendMessage(hwnd,SCI_GETSELTEXT,0,(LPARAM)pszText);

      cpEdit = SendMessage(hwnd,SCI_GETCODEPAGE,0,0);

      cchTextW = MultiByteToWideChar(cpEdit,0,pszText,iSelCount,pszTextW,GlobalSize(pszTextW) / sizeof(WCHAR));

      for (i = 0; i < cchTextW; i++) {
        if (IsCharUpperW(pszTextW[i])) {
          pszTextW[i] = LOWORD(CharLowerW((LPWSTR)MAKELONG(pszTextW[i],0)));
          bChanged = TRUE;
        }
      }

      if (bChanged) {

        WideCharToMultiByte(cpEdit,0,pszTextW,cchTextW,pszText,GlobalSize(pszText),NULL,NULL);
        GlobalFree(pszTextW);

        SendMessage(hwnd,SCI_BEGINUNDOACTION,0,0);
        SendMessage(hwnd,SCI_CLEAR,0,0);
        SendMessage(hwnd,SCI_ADDTEXT,(WPARAM)iSelCount,(LPARAM)pszText);
        SendMessage(hwnd,SCI_SETSEL,(WPARAM)iAnchorPos,(LPARAM)iCurPos);
        SendMessage(hwnd,SCI_ENDUNDOACTION,0,0);

        GlobalFree(pszText);
      }

      else
        GlobalFree(pszTextW);

    }
    else
      MsgBox(MBINFO,IDS_SELRECT);
  }
}


//=============================================================================
//
//  EditInvertCase()
//
void EditInvertCase(HWND hwnd)
{
  int cchTextW;
  int iCurPos;
  int iAnchorPos;
  UINT cpEdit;
  int i;
  BOOL bChanged = FALSE;

  iCurPos    = SendMessage(hwnd,SCI_GETCURRENTPOS,0,0);
  iAnchorPos = SendMessage(hwnd,SCI_GETANCHOR,0,0);

  if (iCurPos != iAnchorPos)
  {
    if (SC_SEL_RECTANGLE != SendMessage(hwnd,SCI_GETSELECTIONMODE,0,0))
    {
      int iSelCount = SendMessage(hwnd,SCI_GETSELECTIONEND,0,0) -
                        SendMessage(hwnd,SCI_GETSELECTIONSTART,0,0);

      LPSTR  pszText  = GlobalAlloc(GPTR,(iSelCount)+2);
      LPWSTR pszTextW = GlobalAlloc(GPTR,(iSelCount*2)+2);

      if (pszText == NULL || pszTextW == NULL) {
        GlobalFree(pszText);
        GlobalFree(pszTextW);
        return;
      }

      SendMessage(hwnd,SCI_GETSELTEXT,0,(LPARAM)pszText);

      cpEdit = SendMessage(hwnd,SCI_GETCODEPAGE,0,0);

      cchTextW = MultiByteToWideChar(cpEdit,0,pszText,iSelCount,pszTextW,GlobalSize(pszTextW) / sizeof(WCHAR));

      for (i = 0; i < cchTextW; i++) {
        if (IsCharUpperW(pszTextW[i])) {
          pszTextW[i] = LOWORD(CharLowerW((LPWSTR)MAKELONG(pszTextW[i],0)));
          bChanged = TRUE;
        }
        else if (IsCharLowerW(pszTextW[i])) {
          pszTextW[i] = LOWORD(CharUpperW((LPWSTR)MAKELONG(pszTextW[i],0)));
          bChanged = TRUE;
        }
      }

      if (bChanged) {

        WideCharToMultiByte(cpEdit,0,pszTextW,cchTextW,pszText,GlobalSize(pszText),NULL,NULL);
        GlobalFree(pszTextW);

        SendMessage(hwnd,SCI_BEGINUNDOACTION,0,0);
        SendMessage(hwnd,SCI_CLEAR,0,0);
        SendMessage(hwnd,SCI_ADDTEXT,(WPARAM)iSelCount,(LPARAM)pszText);
        SendMessage(hwnd,SCI_SETSEL,(WPARAM)iAnchorPos,(LPARAM)iCurPos);
        SendMessage(hwnd,SCI_ENDUNDOACTION,0,0);

        GlobalFree(pszText);
      }

      else
        GlobalFree(pszTextW);

    }
    else
      MsgBox(MBINFO,IDS_SELRECT);
  }
}


//=============================================================================
//
//  EditTitleCase()
//
void EditTitleCase(HWND hwnd)
{
  int cchTextW;
  int iCurPos;
  int iAnchorPos;
  UINT cpEdit;
  int i;
  BOOL bNewWord = TRUE;
  BOOL bChanged = FALSE;

  iCurPos    = SendMessage(hwnd,SCI_GETCURRENTPOS,0,0);
  iAnchorPos = SendMessage(hwnd,SCI_GETANCHOR,0,0);

  if (iCurPos != iAnchorPos)
  {
    if (SC_SEL_RECTANGLE != SendMessage(hwnd,SCI_GETSELECTIONMODE,0,0))
    {
      int iSelCount = SendMessage(hwnd,SCI_GETSELECTIONEND,0,0) -
                        SendMessage(hwnd,SCI_GETSELECTIONSTART,0,0);

      LPSTR  pszText  = GlobalAlloc(GPTR,(iSelCount)+2);
      LPWSTR pszTextW = GlobalAlloc(GPTR,(iSelCount*2)+2);

      if (pszText == NULL || pszTextW == NULL) {
        GlobalFree(pszText);
        GlobalFree(pszTextW);
        return;
      }

      SendMessage(hwnd,SCI_GETSELTEXT,0,(LPARAM)pszText);

      cpEdit = SendMessage(hwnd,SCI_GETCODEPAGE,0,0);

      cchTextW = MultiByteToWideChar(cpEdit,0,pszText,iSelCount,pszTextW,GlobalSize(pszTextW) / sizeof(WCHAR));

      for (i = 0; i < cchTextW; i++) {
        if (!IsCharAlphaNumericW(pszTextW[i]) && !wcschr(L"'