static bool ShowCommFileDialog(OPENFILENAME *of, long style)
{
DWORD errCode;
bool success = DoShowCommFileDialog(of, style, &errCode);
#ifdef wxTRY_SMALLER_OPENFILENAME
// the system might be too old to support the new version file dialog
// boxes, try with the old size
if ( !success && errCode == CDERR_STRUCTSIZE &&
of->lStructSize != wxOPENFILENAME_V4_SIZE )
{
of->lStructSize = wxOPENFILENAME_V4_SIZE;
success = DoShowCommFileDialog(of, style, &errCode);
if ( success || !errCode )
{
// use this struct size for subsequent dialogs
gs_ofStructSize = of->lStructSize;
}
}
#endif // wxTRY_SMALLER_OPENFILENAME
if ( !success &&
// FNERR_INVALIDFILENAME is not defined under CE (besides we don't
// use CommDlgExtendedError() there anyhow)
#ifndef __WXWINCE__
errCode == FNERR_INVALIDFILENAME &&
#endif // !__WXWINCE__
of->lpstrFile[0] )
{
// this can happen if the default file name is invalid, try without it
// now
of->lpstrFile[0] = wxT('\0');
success = DoShowCommFileDialog(of, style, &errCode);
}
if ( !success )
{
// common dialog failed - why?
if ( errCode != 0 )
{
wxLogError(_("File dialog failed with error code %0lx."), errCode);
}
//else: it was just cancelled
return false;
}
return true;
}
int wxFileDialog::ShowModal()
{
HWND hWnd = 0;
if (m_parent) hWnd = (HWND) m_parent->GetHWND();
if (!hWnd && wxTheApp->GetTopWindow())
hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
*fileNameBuffer = wxT('\0');
*titleBuffer = wxT('\0');
#if WXWIN_COMPATIBILITY_2_4
long msw_flags = 0;
if ( HasFdFlag(wxHIDE_READONLY) || HasFdFlag(wxFD_SAVE) )
msw_flags |= OFN_HIDEREADONLY;
#else
long msw_flags = OFN_HIDEREADONLY;
#endif
if ( HasFdFlag(wxFD_FILE_MUST_EXIST) )
msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
/*
If the window has been moved the programmer is probably
trying to center or position it. Thus we set the callback
or hook function so that we can actually adjust the position.
Without moving or centering the dlg, it will just stay
in the upper left of the frame, it does not center
automatically.
*/
if (m_bMovedWindow) // we need these flags.
{
msw_flags |= OFN_EXPLORER|OFN_ENABLEHOOK;
#ifndef __WXWINCE__
msw_flags |= OFN_ENABLESIZING;
#endif
}
if ( HasFdFlag(wxFD_MULTIPLE) )
{
// OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
msw_flags |= OFN_EXPLORER | OFN_ALLOWMULTISELECT;
}
// if wxFD_CHANGE_DIR flag is not given we shouldn't change the CWD which the
// standard dialog does by default (notice that under NT it does it anyhow,
// OFN_NOCHANGEDIR or not, see below)
if ( !HasFdFlag(wxFD_CHANGE_DIR) )
{
msw_flags |= OFN_NOCHANGEDIR;
}
if ( HasFdFlag(wxFD_OVERWRITE_PROMPT) )
{
msw_flags |= OFN_OVERWRITEPROMPT;
}
wxOPENFILENAME of;
wxZeroMemory(of);
of.lStructSize = gs_ofStructSize;
of.hwndOwner = hWnd;
of.lpstrTitle = WXSTRINGCAST m_message;
of.lpstrFileTitle = titleBuffer;
of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT;
// Convert forward slashes to backslashes (file selector doesn't like
// forward slashes) and also squeeze multiple consecutive slashes into one
// as it doesn't like two backslashes in a row neither
wxString dir;
size_t i, len = m_dir.length();
dir.reserve(len);
for ( i = 0; i < len; i++ )
{
wxChar ch = m_dir[i];
switch ( ch )
{
case _T('/'):
// convert to backslash
ch = _T('\\');
// fall through
case _T('\\'):
while ( i < len - 1 )
{
wxChar chNext = m_dir[i + 1];
if ( chNext != _T('\\') && chNext != _T('/') )
break;
// ignore the next one, unless it is at the start of a UNC path
if (i > 0)
i++;
else
break;
}
// fall through
default:
// normal char
dir += ch;
}
}
of.lpstrInitialDir = dir.c_str();
of.Flags = msw_flags;
of.lpfnHook = wxFileDialogHookFunction;
wxArrayString wildDescriptions, wildFilters;
size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters);
wxASSERT_MSG( items > 0 , _T("empty wildcard list") );
wxString filterBuffer;
for (i = 0; i < items ; i++)
{
filterBuffer += wildDescriptions[i];
filterBuffer += wxT("|");
filterBuffer += wildFilters[i];
filterBuffer += wxT("|");
}
// Replace | with \0
for (i = 0; i < filterBuffer.length(); i++ ) {
if ( filterBuffer.GetChar(i) == wxT('|') ) {
filterBuffer[i] = wxT('\0');
}
}
of.lpstrFilter = (LPTSTR)filterBuffer.c_str();
of.nFilterIndex = m_filterIndex + 1;
//=== Setting defaultFileName >>=========================================
wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
of.lpstrFile = fileNameBuffer; // holds returned filename
of.nMaxFile = wxMAXPATH;
// we must set the default extension because otherwise Windows would check
// for the existing of a wrong file with wxFD_OVERWRITE_PROMPT (i.e. if the
// user types "foo" and the default extension is ".bar" we should force it
// to check for "foo.bar" existence and not "foo")
wxString defextBuffer; // we need it to be alive until GetSaveFileName()!
if (HasFdFlag(wxFD_SAVE))
{
const wxChar* extension = filterBuffer;
int maxFilter = (int)(of.nFilterIndex*2L) - 1;
for( int i = 0; i < maxFilter; i++ ) // get extension
extension = extension + wxStrlen( extension ) + 1;
// use dummy name a to avoid assert in AppendExtension
defextBuffer = AppendExtension(wxT("a"), extension);
if (defextBuffer.StartsWith(wxT("a.")))
{
defextBuffer = defextBuffer.Mid(2); // remove "a."
of.lpstrDefExt = defextBuffer.c_str();
}
}
// store off before the standard windows dialog can possibly change it
const wxString cwdOrig = wxGetCwd();
//== Execute FileDialog >>=================================================
DWORD errCode;
bool success = DoShowCommFileDialog(&of, m_windowStyle, &errCode);
#ifdef wxTRY_SMALLER_OPENFILENAME
// the system might be too old to support the new version file dialog
// boxes, try with the old size
if ( !success && errCode == CDERR_STRUCTSIZE &&
of.lStructSize != wxOPENFILENAME_V4_SIZE )
{
of.lStructSize = wxOPENFILENAME_V4_SIZE;
success = DoShowCommFileDialog(&of, m_windowStyle, &errCode);
if ( success || !errCode )
{
// use this struct size for subsequent dialogs
gs_ofStructSize = of.lStructSize;
}
}
#endif // wxTRY_SMALLER_OPENFILENAME
if ( success )
{
// GetOpenFileName will always change the current working directory on
// (according to MSDN) "Windows NT 4.0/2000/XP" because the flag
// OFN_NOCHANGEDIR has no effect. If the user did not specify
// wxFD_CHANGE_DIR let's restore the current working directory to what it
// was before the dialog was shown.
if ( msw_flags & OFN_NOCHANGEDIR )
{
wxSetWorkingDirectory(cwdOrig);
}
m_fileNames.Empty();
if ( ( HasFdFlag(wxFD_MULTIPLE) ) &&
#if defined(OFN_EXPLORER)
( fileNameBuffer[of.nFileOffset-1] == wxT('\0') )
#else
( fileNameBuffer[of.nFileOffset-1] == wxT(' ') )
#endif // OFN_EXPLORER
)
{
#if defined(OFN_EXPLORER)
m_dir = fileNameBuffer;
i = of.nFileOffset;
m_fileName = &fileNameBuffer[i];
m_fileNames.Add(m_fileName);
i += m_fileName.length() + 1;
while (fileNameBuffer[i] != wxT('\0'))
{
m_fileNames.Add(&fileNameBuffer[i]);
i += wxStrlen(&fileNameBuffer[i]) + 1;
}
#else
wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n"));
m_dir = toke.GetNextToken();
m_fileName = toke.GetNextToken();
m_fileNames.Add(m_fileName);
while (toke.HasMoreTokens())
m_fileNames.Add(toke.GetNextToken());
#endif // OFN_EXPLORER
wxString dir(m_dir);
if ( m_dir.Last() != _T('\\') )
dir += _T('\\');
m_path = dir + m_fileName;
m_filterIndex = (int)of.nFilterIndex - 1;
}
else
{
//=== Adding the correct extension >>=================================
m_filterIndex = (int)of.nFilterIndex - 1;
if ( !of.nFileExtension ||
(of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) )
{
// User has typed a filename without an extension:
const wxChar* extension = filterBuffer;
int maxFilter = (int)(of.nFilterIndex*2L) - 1;
for( int i = 0; i < maxFilter; i++ ) // get extension
extension = extension + wxStrlen( extension ) + 1;
m_fileName = AppendExtension(fileNameBuffer, extension);
wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.length(), wxMAXPATH-1));
fileNameBuffer[wxMin(m_fileName.length(), wxMAXPATH-1)] = wxT('\0');
}
m_path = fileNameBuffer;
m_fileName = wxFileNameFromPath(fileNameBuffer);
m_fileNames.Add(m_fileName);
m_dir = wxPathOnly(fileNameBuffer);
}
}
#ifdef __WXDEBUG__
else
{
// common dialog failed - why?
if ( errCode != 0 )
{
// this msg is only for developers so don't translate it
wxLogError(wxT("Common dialog failed with error code %0lx."),
errCode);
}
//else: it was just cancelled
}
#endif // __WXDEBUG__
return success ? wxID_OK : wxID_CANCEL;
}
