ecutils.cpp

ecos实时嵌入式操作系统

			if(int(hInst)<=32/*sei.hInstApp==0*/)
			{
				wxString str;
				switch(int(hInst))
				{
					case 0 : str=wxT("The operating system is out of memory or resources. ");break;
					case ERROR_FILE_NOT_FOUND : str=wxT("The specified file was not found. ");break;
					case ERROR_PATH_NOT_FOUND : str=wxT("The specified path was not found. ");break;
					case ERROR_BAD_FORMAT : str=wxT("The .EXE file is invalid (non-Win32 .EXE or error in .EXE image). ");break;
					case SE_ERR_ACCESSDENIED : str=wxT("The operating system denied access to the specified file. ");break;
					case SE_ERR_ASSOCINCOMPLETE : str=wxT("The filename association is incomplete or invalid. ");break;
					case SE_ERR_DDEBUSY : str=wxT("The DDE transaction could not be completed because other DDE transactions were being processed. ");break;
					case SE_ERR_DDEFAIL : str=wxT("The DDE transaction failed. ");break;
					case SE_ERR_DDETIMEOUT : str=wxT("The DDE transaction could not be completed because the request timed out. ");break;
					case SE_ERR_DLLNOTFOUND : str=wxT("The specified dynamic-link library was not found. ");break;
					//case SE_ERR_FNF : str=wxT("The specified file was not found. ");break;
					case SE_ERR_NOASSOC : str=wxT("There is no application associated with the given filename extension. ");break;
					case SE_ERR_OOM : str=wxT("There was not enough memory to complete the operation. ");break;
					//case SE_ERR_PNF : str=wxT("The specified path was not found. ");break;
					case SE_ERR_SHARE : str=wxT("A sharing violation occurred. ");break;
					default: str=wxT("An unexpected error occurred");break;
				}
				MessageBoxF(wxT("Failed to open document %s using %s.\r\n%s"),strFileName,szExe,str);
			} else {
				rc=true;
			}
		}
	}
	return rc;
}

#endif

void ecUtils::UnicodeToCStr(const wxChar* str,char *&psz)
{
    int nLength=1 + wxStrlen(str);
    psz=new char[nLength];
#ifdef _UNICODE
    WideCharToMultiByte(CP_ACP, 0, str, -1, psz, nLength, NULL, NULL);
#else
    strcpy(psz,str);
#endif
}

std::string ecUtils::UnicodeToStdStr(const wxChar* str)
{
    std::string stdstr;
    char *psz;
    UnicodeToCStr(str,psz);
    stdstr=std::string(psz);
    delete psz;
    return stdstr;
}

// ecUtils::StripExtraWhitespace() returns a modified version of
// a string in which each sequence of whitespace characters is
// replaced by a single space

static bool ecIsSpace(wxChar ch)
{
	return (ch == wxT(' ') || ch == wxT('\r') || ch == wxT('\n') || ch == wxT('\t'));
}

wxString ecUtils::StripExtraWhitespace (const wxString & strInput)
{
    wxString strOutput;
    wxChar* o=strOutput.GetWriteBuf(1+strInput.Len());
    for(const wxChar* c=strInput.GetData();*c;c++){
        if(ecIsSpace(*c)){
            *o++=wxT(' ');
            if (ecIsSpace(c[1])){
                for(c=c+2; ecIsSpace(*c);c++);
                c--;
            }
        } else {
            *o++=*c;
        }
    }
    *o=0;
    strOutput.UngetWriteBuf();
    strOutput.Trim(TRUE);
    strOutput.Trim(FALSE);
    return strOutput;
#if 0    
    wxString strOutput;
    LPTSTR o=strOutput.GetBuffer(1+strInput.GetLength());
    for(LPCTSTR c=strInput;*c;c++){
        if(_istspace(*c)){
            *o++=_TCHAR(' ');
            if (_istspace(c[1])){
                for(c=c+2;_istspace(*c);c++);
                c--;
            }
        } else {
            *o++=*c;
        }
    }
    *o=0;
    strOutput.ReleaseBuffer();
    strOutput.TrimLeft();
    strOutput.TrimRight();
    return strOutput;
#endif
}

#if 0
ecFileName ecUtils::WPath(const std::string &str)
{
  // Convert a path as read from cdl into host format
  // Change / to \ throughout
  ecFileName
    strPath(str.c_str());
  strPath.Replace (_TCHAR('/'), _TCHAR('\\'));
  return strPath;
}

// Copy file helper function.
// This makes sure the destination file is only touched as necessary.
// It is written using Posix calls lest it should be more broadly applicable.

bool ecUtils::CopyFile(LPCTSTR pszSource,LPCTSTR pszDest)
{
  // Compare the files.  First set rc to the result of the comparison (true if the same)
  bool rc=false;

  struct _stat s1,s2;
  if(-1!=_tstat(pszSource,&s1) && -1!=_tstat(pszDest,&s2) && s1.st_size==s2.st_size){
    // Files both exist and are of equal size
    FILE *f1=_tfopen(pszSource,wxT("rb"));
    if(f1){
      FILE *f2=_tfopen(pszDest,wxT("rb"));
      if(f2){
        int nSize1,nSize2;
        rc=true;
        do{
          char buf1[4096],buf2[4096];
          nSize1=fread(buf1,1,sizeof buf1,f1);
          nSize2=fread(buf2,1,sizeof buf2,f2);
          if(nSize1!=nSize2 || 0!=memcmp(buf1,buf2,nSize1)){
            rc=false;
            break;
          }
        } while (nSize1>0);
        fclose(f2);
      }
      fclose(f1);
    }
  }

  if(rc){
    // Files are identical
  } else {
    rc=TRUE==::CopyFile(pszSource,pszDest,FALSE);
    if(rc){
    } else {
      MessageBoxF(wxT("Failed to copy '%s' to '%s' - %s"),pszSource,pszDest,GetLastErrorMessageString());
    }
  }

  return rc;
}

#endif

/*
 * wxStringToStringMap
 *
 * Stores string values keyed by strings
 */

void wxStringToStringMap::Set(const wxString& key, const wxString& value)
{
    wxString oldValue;
    if (Find(key, oldValue))
        Remove(key);
    m_hashTable.Put(key, (wxObject*) new wxString(value));
}

bool wxStringToStringMap::Remove(const wxString& key)
{
    wxString* str = (wxString*) m_hashTable.Delete(key);
    if (str)
    {
        delete str;
        return TRUE;
    }
    else
        return FALSE;
}

bool wxStringToStringMap::Find(const wxString& key, wxString& value)
{
    wxString* str = (wxString*) m_hashTable.Get(key);
    if (str)
    {
        value = * str;
        return TRUE;
    }
    else
        return FALSE;
}

void wxStringToStringMap::Clear()
{
    m_hashTable.BeginFind();
    wxNode* node;
    while ((node = m_hashTable.Next()))
    {
        wxString* str = (wxString*) node->Data();
        delete str;
    }
}

void wxStringToStringMap::BeginFind()
{
    m_hashTable.BeginFind();
}

bool wxStringToStringMap::Next(wxString& key, wxString& value)
{
    wxNode* node = m_hashTable.Next();
    if (node)
    {
        value = * (wxString*) node->Data();
        return TRUE;
    }
    else
        return FALSE;
}

// Is str a member of arr?
bool wxArrayStringIsMember(const wxArrayString& arr, const wxString& str)
{
    size_t i;
    for (i = (size_t) 0; i < arr.GetCount(); i++)
        if (arr[i] == str)
            return TRUE;

    return FALSE;
}

// Eliminate .. and .
wxString wxGetRealPath(const wxString& path)
{
    wxChar* p = new wxChar[path.Len() + 1];
    wxStrcpy(p, (const wxChar*) path);
    wxRealPath(p);

    wxString str(p);
    delete[] p;
    return str;
}

// A version of the above but prepending 'cwd' (current path) first
// if 'path' is relative
wxString wxGetRealPath(const wxString& cwd, const wxString& path)
{
    wxString path1(path);

    if (!wxIsAbsolutePath(path))
    {
        path1 = cwd;
        if (path1.Last() != wxFILE_SEP_PATH)
            path1 += wxFILE_SEP_PATH;
        path1 += path;
    }

    return wxGetRealPath(path1);
}

// Find the absolute path where this application has been run from.
// argv0 is wxTheApp->argv[0]
// cwd is the current working directory (at startup)
// appVariableName is the name of a variable containing the directory for this app, e.g.
// MYAPPDIR. This is checked first.

wxString wxFindAppPath(const wxString& argv0, const wxString& cwd, const wxString& appVariableName)
{
    wxString str;

    // Try appVariableName
    if (!appVariableName.IsEmpty())
    {
        str = wxGetenv(appVariableName);
        if (!str.IsEmpty())
            return str;
    }

    if (wxIsAbsolutePath(argv0))
        return wxPathOnly(argv0);
    else
    {
        // Is it a relative path?
        wxString currentDir(cwd);
        if (currentDir.Last() != wxFILE_SEP_PATH)
            currentDir += wxFILE_SEP_PATH;

        str = currentDir + argv0;
        if (wxFileExists(str))
            return wxPathOnly(str);
    }

    // OK, it's neither an absolute path nor a relative path.
    // Search PATH.

    wxPathList pathList;
    pathList.AddEnvList(wxT("PATH"));
    str = pathList.FindAbsoluteValidPath(argv0);
    if (!str.IsEmpty())
        return wxPathOnly(str);

    // Failed
    return wxEmptyString;
}

// Make a path name with no separators, out of a full pathname,
// e.g. opt_ecos_ecos-1.4.5 out of /opt/ecos/ecos-1.4.5
wxString ecMakeNameFromPath(const wxString& path)
{
    wxString p(path);
    p.Replace(wxT("/"), wxT("_"));
    p.Replace(wxT("\\"), wxT("_"));
    p.Replace(wxT(":"), wxT("_"));
    return p;
}


// Find the text of the list control item at the given column
wxString wxListCtrlGetItemTextColumn(wxListCtrl& listCtrl, long item, int col)
{
    wxListItem listItem;
    listItem.m_mask = wxLIST_MASK_TEXT;
    listItem.m_itemId = item;
    listItem.m_col = col;

    if (listCtrl.GetItem(listItem))
        return listItem.m_text;
    else
        return wxEmptyString;
}

// Select the given item
void wxListCtrlSelectItem(wxListCtrl& listCtrl, long sel, bool deselectOthers)
{
    long n = listCtrl.GetItemCount();
    long i;
    if (deselectOthers)
    {
        for (i = 0; i < n; i++)
        {
            if (listCtrl.GetItemState(i, wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED)
            {
                listCtrl.SetItemState(i, wxLIST_STATE_SELECTED, 0);
            }
        }
    }
    listCtrl.SetItemState(sel, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
}

// Find the selection
long wxListCtrlGetSelection(wxListCtrl& listCtrl)
{
    long n = listCtrl.GetItemCount();
    long i;
    for (i = 0; i < n; i++)
    {
        if (listCtrl.GetItemState(i, wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED)
        {
            return i;
        }
    }
    return -1;
}

// Find which column the cursor is on
int wxListCtrlFindColumn(wxListCtrl& listCtrl, int noCols, int x)
{
    int col = 0;
    
    // Find which column we're on
    int width = 0;
    int i;
    for (i = 0; i < noCols; i++)
    {
        width += listCtrl.GetColumnWidth(i);
        if (x <= width)
        {
            col = i;
            break;
        }
    }
    return col;
}

// Utility function
void wxRefreshControls(wxWindow* win)
{
    wxNode *node = win->GetChildren().First();
    while (node)
    {
        wxWindow* win = (wxWindow*) node->Data();
        win->Refresh();
        node = node->Next();
    }
}

wxOutputStream& operator <<(wxOutputStream& stream, const wxString& s)
{
    stream.Write(s, s.Length());