src/msw/filedlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/filedlg.cpp
// Purpose:     wxFileDialog
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart and Markus Holzem
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#ifdef __GNUG__
    #pragma implementation "filedlg.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_FILEDLG

#ifndef WX_PRECOMP
    #include "wx/utils.h"
    #include "wx/msgdlg.h"
    #include "wx/dialog.h"
    #include "wx/filedlg.h"
    #include "wx/intl.h"
    #include "wx/log.h"
    #include "wx/app.h"
#endif

#include "wx/msw/private.h"

#if !defined(__WIN32__) || defined(__SALFORDC__) || defined(__WXWINE__)
    #include <commdlg.h>
#endif

#include <math.h>
#include <stdlib.h>
#include <string.h>

#include "wx/tokenzr.h"

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

#ifdef __WIN32__
# define wxMAXPATH   4096
#else
# define wxMAXPATH   1024
#endif

# define wxMAXFILE   1024

# define wxMAXEXT    5

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_CLASS(wxFileDialog, wxDialog)

// ----------------------------------------------------------------------------
// global functions
// ----------------------------------------------------------------------------

wxString wxFileSelector(const wxChar *title,
                        const wxChar *defaultDir,
                        const wxChar *defaultFileName,
                        const wxChar *defaultExtension,
                        const wxChar *filter,
                        int flags,
                        wxWindow *parent,
                        int x, int y)
{
    // In the original implementation, defaultExtension is passed to the
    // lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
    // appended to the filename if the user fails to type an extension. The new
    // implementation (taken from wxFileSelectorEx) appends the extension
    // automatically, by looking at the filter specification. In fact this
    // should be better than the native Microsoft implementation because
    // Windows only allows *one* default extension, whereas here we do the
    // right thing depending on the filter the user has chosen.

    // If there's a default extension specified but no filter, we create a
    // suitable filter.

    wxString filter2;
    if ( defaultExtension && !filter )
        filter2 = wxString(wxT("*.")) + defaultExtension;
    else if ( filter )
        filter2 = filter;

    wxString defaultDirString;
    if (defaultDir)
        defaultDirString = defaultDir;

    wxString defaultFilenameString;
    if (defaultFileName)
        defaultFilenameString = defaultFileName;

    wxFileDialog fileDialog(parent, title, defaultDirString,
                            defaultFilenameString, filter2,
                            flags, wxPoint(x, y));
    if( wxStrlen(defaultExtension) != 0 )
    {
        int filterFind = 0,
            filterIndex = 0;

        for( unsigned int i = 0; i < filter2.Len(); i++ )
        {
            if( filter2.GetChar(i) == wxT('|') )
            {
                // save the start index of the new filter
                unsigned int is = i++;

                // find the end of the filter
                for( ; i < filter2.Len(); i++ )
                {
                    if(filter2[i] == wxT('|'))
                        break;
                }

                if( i-is-1 > 0 && is+1 < filter2.Len() )
                {
                    if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
                    {
                        filterFind = filterIndex;
                        break;
                    }
                }

                filterIndex++;
            }
        }

        fileDialog.SetFilterIndex(filterFind);
    }

    wxString filename;
    if ( fileDialog.ShowModal() == wxID_OK )
    {
        filename = fileDialog.GetPath();
    }

    return filename;
}


wxString wxFileSelectorEx(const wxChar *title,
                       const wxChar *defaultDir,
                       const wxChar *defaultFileName,
                       int* defaultFilterIndex,
                       const wxChar *filter,
                       int       flags,
                       wxWindow* parent,
                       int       x,
                       int       y)

{
    wxFileDialog fileDialog(parent,
                            title ? title : wxT(""),
                            defaultDir ? defaultDir : wxT(""),
                            defaultFileName ? defaultFileName : wxT(""),
                            filter ? filter : wxT(""),
                            flags, wxPoint(x, y));

    wxString filename;
    if ( fileDialog.ShowModal() == wxID_OK )
    {
        if ( defaultFilterIndex )
            *defaultFilterIndex = fileDialog.GetFilterIndex();

        filename = fileDialog.GetPath();
    }

    return filename;
}

wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
        const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
        long style, const wxPoint& WXUNUSED(pos))
{
    m_message = message;
    m_dialogStyle = style;
    if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
        m_dialogStyle &= ~wxMULTIPLE;
    m_parent = parent;
    m_path = wxT("");
    m_fileName = defaultFileName;
    m_dir = defaultDir;
    m_wildCard = wildCard;
    m_filterIndex = 0;
}

void wxFileDialog::GetPaths(wxArrayString& paths) const
{
    paths.Empty();

    wxString dir(m_dir);
    if ( m_dir.Last() != _T('\\') )
        dir += _T('\\');

    size_t count = m_fileNames.GetCount();
    for ( size_t n = 0; n < count; n++ )
    {
        paths.Add(dir + m_fileNames[n]);
    }
}

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');

    long msw_flags = 0;
    if ( (m_dialogStyle & wxHIDE_READONLY) || (m_dialogStyle & wxSAVE) )
        msw_flags |= OFN_HIDEREADONLY;
    if ( m_dialogStyle & wxFILE_MUST_EXIST )
        msw_flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
    if (m_dialogStyle & wxMULTIPLE )
        msw_flags |=
#if defined(OFN_EXPLORER)
        OFN_EXPLORER |
#endif // OFN_EXPLORER
        OFN_ALLOWMULTISELECT;

    OPENFILENAME of;
    wxZeroMemory(of);

    // the OPENFILENAME struct has been extended in newer version of
    // comcdlg32.dll, but as we don't use the extended fields anyhow, set
    // the struct size to the old value - otherwise, the programs compiled
    // with new headers will not work with the old libraries
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
    of.lStructSize       = sizeof(OPENFILENAME) -
                           (sizeof(void *) + 2*sizeof(DWORD));
#else // old headers
    of.lStructSize       = sizeof(OPENFILENAME);
#endif

    of.hwndOwner         = hWnd;
    of.lpstrTitle        = WXSTRINGCAST m_message;
    of.lpstrFileTitle    = titleBuffer;
    of.nMaxFileTitle     = wxMAXFILE + 1 + wxMAXEXT;    // Windows 3.0 and 3.1

    // Convert forward slashes to backslashes (file selector doesn't like
    // forward slashes)
    size_t i = 0;
    size_t len = m_dir.Length();
    for (i = 0; i < len; i++)
        if (m_dir[i] == wxT('/'))
            m_dir[i] = wxT('\\');

    of.lpstrInitialDir   = m_dir.c_str();

    of.Flags             = msw_flags;


    //=== Like Alejandro Sierra's wildcard modification >>===================
    /*
       In wxFileSelector you can put, instead of a single wild_card,
       pairs of strings separated by '|'.
       The first string is a description, and the
       second is the wild card. You can put any number of pairs.

       eg.  "description1 (*.ex1)|*.ex1|description2 (*.ex2)|*.ex2"

       If you put a single wild card, it works as before the modification.
     */
    //=======================================================================

    wxString theFilter;
    if ( wxStrlen(m_wildCard) == 0 )
        theFilter = wxString(wxT("*.*"));
    else
        theFilter = m_wildCard ;
    wxString filterBuffer;

    if ( !wxStrchr( theFilter, wxT('|') ) ) {    // only one filter ==> default text
        filterBuffer.Printf(_("Files (%s)|%s"),
                            theFilter.c_str(), theFilter.c_str());
    }
    else {                                // more then one filter
        filterBuffer = theFilter;

    }

    filterBuffer += wxT("|");
    // Replace | with \0
    for (i = 0; i < filterBuffer.Len(); i++ ) {
        if ( filterBuffer.GetChar(i) == wxT('|') ) {
            filterBuffer[i] = wxT('\0');
        }
    }

    of.lpstrFilter  = (LPTSTR)(const wxChar *)filterBuffer;
    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;

    //== Execute FileDialog >>=================================================

    bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
                                           : GetOpenFileName(&of)) != 0;

    DWORD errCode = CommDlgExtendedError();

#ifdef __WIN32__
    if (!success && (errCode == CDERR_STRUCTSIZE))
    {
        // The struct size has changed so try a smaller or bigger size

        int oldStructSize = of.lStructSize;
        of.lStructSize       = oldStructSize - (sizeof(void *) + 2*sizeof(DWORD));
        success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        errCode = CommDlgExtendedError();

        if (!success && (errCode == CDERR_STRUCTSIZE))
        {
            of.lStructSize       = oldStructSize + (sizeof(void *) + 2*sizeof(DWORD));
            success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
                                            : (GetOpenFileName(&of) != 0);
        }
    }
#endif

    if ( success )
    {
        m_fileNames.Empty();

        if ( ( m_dialogStyle & wxMULTIPLE ) &&
#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.Len() + 1;

            while (fileNameBuffer[i] != wxT('\0'))
            {
                m_fileNames.Add(&fileNameBuffer[i]);
                i += wxStrlen(&fileNameBuffer[i]) + 1;
            }
#else
            wxStringTokenizer toke(fileNameBuffer, " \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_fileNames.Sort();
            m_path = dir + m_fileName;
        }
        else
        {
            const wxChar* extension = NULL;

            //=== Adding the correct extension >>=================================

            m_filterIndex = (int)of.nFilterIndex - 1;

            if ( !of.nFileExtension || (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
            {                                    // user has typed an filename
                // without an extension:

                int   maxFilter = (int)(of.nFilterIndex*2L-1L);
                extension = filterBuffer;

                for( int i = 0; i < maxFilter; i++ ) {          // get extension
                    extension = extension + wxStrlen( extension ) +1;
                }

                extension = wxStrrchr( extension, wxT('.') );
                if (  extension                                 // != "blabla"
                        && !wxStrrchr( extension, wxT('*') )       // != "blabla.*"
                        && !wxStrrchr( extension, wxT('?') )       // != "blabla.?"
                        && extension[1]                           // != "blabla."
                        && extension[1] != wxT(' ') )              // != "blabla. "
                {
                    // now concat extension to the fileName:
                    m_fileName = wxString(fileNameBuffer) + extension;

                    int len = wxStrlen( fileNameBuffer );
                    wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
                    fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
                }
            }

            m_path = fileNameBuffer;
            m_fileName = wxFileNameFromPath(fileNameBuffer);
            m_fileNames.Add(m_fileName);
            m_dir = wxPathOnly(fileNameBuffer);
        }


        //=== Simulating the wxOVERWRITE_PROMPT >>============================

        if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
             ::wxFileExists( fileNameBuffer ) )
        {
            wxString messageText;
            messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);

            if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
            {
                success = FALSE;
            }
        }

    }
    else
    {
        // common dialog failed - why?
#ifdef __WXDEBUG__
        DWORD dwErr = CommDlgExtendedError();
        if ( dwErr != 0 )
        {
            // this msg is only for developers
            wxLogError(wxT("Common dialog failed with error code %0lx."),
                       dwErr);
        }
        //else: it was just cancelled
#endif
    }

    return success ? wxID_OK : wxID_CANCEL;

}

// Generic file load/save dialog (for internal use only)
static
wxString wxDefaultFileSelector(bool load,
                               const wxChar *what,
                               const wxChar *extension,
                               const wxChar *default_name,
                               wxWindow *parent)
{
    wxString prompt;
    wxString str;
    if (load)
        str = _("Load %s file");
    else
        str = _("Save %s file");
    prompt.Printf(str, what);

    const wxChar *ext = extension;
    if (*ext == wxT('.'))
        ext++;

    wxString wild;
    wild.Printf(wxT("*.%s"), ext);

    return wxFileSelector(prompt, NULL, default_name, ext, wild,
                          load ? wxOPEN : wxSAVE, parent);
}

// Generic file load dialog
WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
                                        const wxChar *extension,
                                        const wxChar *default_name,
                                        wxWindow *parent)
{
    return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
}

// Generic file save dialog
WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
                                        const wxChar *extension,
                                        const wxChar *default_name,
                                        wxWindow *parent)
{
    return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
}

#endif // wxUSE_FILEDLG
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/filedlg.cpp
	3	// Purpose: wxFileDialog
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	#ifdef __GNUG__
	21	#pragma implementation "filedlg.h"
	22	#endif
	23
	24	// For compilers that support precompilation, includes "wx.h".
	25	#include "wx/wxprec.h"
	26
	27	#ifdef __BORLANDC__
	28	#pragma hdrstop
	29	#endif
	30
	31	#if wxUSE_FILEDLG
	32
	33	#ifndef WX_PRECOMP
	34	#include "wx/utils.h"
	35	#include "wx/msgdlg.h"
	36	#include "wx/dialog.h"
	37	#include "wx/filedlg.h"
	38	#include "wx/intl.h"
	39	#include "wx/log.h"
	40	#include "wx/app.h"
	41	#endif
	42
	43	#include "wx/msw/private.h"
	44
	45	#if !defined(__WIN32__) \|\| defined(__SALFORDC__) \|\| defined(__WXWINE__)
	46	#include <commdlg.h>
	47	#endif
	48
	49	#include <math.h>
	50	#include <stdlib.h>
	51	#include <string.h>
	52
	53	#include "wx/tokenzr.h"
	54
	55	// ----------------------------------------------------------------------------
	56	// constants
	57	// ----------------------------------------------------------------------------
	58
	59	#ifdef __WIN32__
	60	# define wxMAXPATH 4096
	61	#else
	62	# define wxMAXPATH 1024
	63	#endif
	64
	65	# define wxMAXFILE 1024
	66
	67	# define wxMAXEXT 5
	68
	69	// ============================================================================
	70	// implementation
	71	// ============================================================================
	72
	73	// ----------------------------------------------------------------------------
	74	// wxWin macros
	75	// ----------------------------------------------------------------------------
	76
	77	IMPLEMENT_CLASS(wxFileDialog, wxDialog)
	78
	79	// ----------------------------------------------------------------------------
	80	// global functions
	81	// ----------------------------------------------------------------------------
	82
	83	wxString wxFileSelector(const wxChar *title,
	84	const wxChar *defaultDir,
	85	const wxChar *defaultFileName,
	86	const wxChar *defaultExtension,
	87	const wxChar *filter,
	88	int flags,
	89	wxWindow *parent,
	90	int x, int y)
	91	{
	92	// In the original implementation, defaultExtension is passed to the
	93	// lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
	94	// appended to the filename if the user fails to type an extension. The new
	95	// implementation (taken from wxFileSelectorEx) appends the extension
	96	// automatically, by looking at the filter specification. In fact this
	97	// should be better than the native Microsoft implementation because
	98	// Windows only allows one default extension, whereas here we do the
	99	// right thing depending on the filter the user has chosen.
	100
	101	// If there's a default extension specified but no filter, we create a
	102	// suitable filter.
	103
	104	wxString filter2;
	105	if ( defaultExtension && !filter )
	106	filter2 = wxString(wxT("*.")) + defaultExtension;
	107	else if ( filter )
	108	filter2 = filter;
	109
	110	wxString defaultDirString;
	111	if (defaultDir)
	112	defaultDirString = defaultDir;
	113
	114	wxString defaultFilenameString;
	115	if (defaultFileName)
	116	defaultFilenameString = defaultFileName;
	117
	118	wxFileDialog fileDialog(parent, title, defaultDirString,
	119	defaultFilenameString, filter2,
	120	flags, wxPoint(x, y));
	121	if( wxStrlen(defaultExtension) != 0 )
	122	{
	123	int filterFind = 0,
	124	filterIndex = 0;
	125
	126	for( unsigned int i = 0; i < filter2.Len(); i++ )
	127	{
	128	if( filter2.GetChar(i) == wxT('\|') )
	129	{
	130	// save the start index of the new filter
	131	unsigned int is = i++;
	132
	133	// find the end of the filter
	134	for( ; i < filter2.Len(); i++ )
	135	{
	136	if(filter2[i] == wxT('\|'))
	137	break;
	138	}
	139
	140	if( i-is-1 > 0 && is+1 < filter2.Len() )
	141	{
	142	if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
	143	{
	144	filterFind = filterIndex;
	145	break;
	146	}
	147	}
	148
	149	filterIndex++;
	150	}
	151	}
	152
	153	fileDialog.SetFilterIndex(filterFind);
	154	}
	155
	156	wxString filename;
	157	if ( fileDialog.ShowModal() == wxID_OK )
	158	{
	159	filename = fileDialog.GetPath();
	160	}
	161
	162	return filename;
	163	}
	164
	165
	166	wxString wxFileSelectorEx(const wxChar *title,
	167	const wxChar *defaultDir,
	168	const wxChar *defaultFileName,
	169	int* defaultFilterIndex,
	170	const wxChar *filter,
	171	int flags,
	172	wxWindow* parent,
	173	int x,
	174	int y)
	175
	176	{
	177	wxFileDialog fileDialog(parent,
	178	title ? title : wxT(""),
	179	defaultDir ? defaultDir : wxT(""),
	180	defaultFileName ? defaultFileName : wxT(""),
	181	filter ? filter : wxT(""),
	182	flags, wxPoint(x, y));
	183
	184	wxString filename;
	185	if ( fileDialog.ShowModal() == wxID_OK )
	186	{
	187	if ( defaultFilterIndex )
	188	*defaultFilterIndex = fileDialog.GetFilterIndex();
	189
	190	filename = fileDialog.GetPath();
	191	}
	192
	193	return filename;
	194	}
	195
	196	wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
	197	const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
	198	long style, const wxPoint& WXUNUSED(pos))
	199	{
	200	m_message = message;
	201	m_dialogStyle = style;
	202	if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
	203	m_dialogStyle &= ~wxMULTIPLE;
	204	m_parent = parent;
	205	m_path = wxT("");
	206	m_fileName = defaultFileName;
	207	m_dir = defaultDir;
	208	m_wildCard = wildCard;
	209	m_filterIndex = 0;
	210	}
	211
	212	void wxFileDialog::GetPaths(wxArrayString& paths) const
	213	{
	214	paths.Empty();
	215
	216	wxString dir(m_dir);
	217	if ( m_dir.Last() != _T('\\') )
	218	dir += _T('\\');
	219
	220	size_t count = m_fileNames.GetCount();
	221	for ( size_t n = 0; n < count; n++ )
	222	{
	223	paths.Add(dir + m_fileNames[n]);
	224	}
	225	}
	226
	227	int wxFileDialog::ShowModal()
	228	{
	229	HWND hWnd = 0;
	230	if (m_parent) hWnd = (HWND) m_parent->GetHWND();
	231	if (!hWnd && wxTheApp->GetTopWindow())
	232	hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
	233
	234	static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
	235	wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
	236
	237	*fileNameBuffer = wxT('\0');
	238	*titleBuffer = wxT('\0');
	239
	240	long msw_flags = 0;
	241	if ( (m_dialogStyle & wxHIDE_READONLY) \|\| (m_dialogStyle & wxSAVE) )
	242	msw_flags \|= OFN_HIDEREADONLY;
	243	if ( m_dialogStyle & wxFILE_MUST_EXIST )
	244	msw_flags \|= OFN_PATHMUSTEXIST \| OFN_FILEMUSTEXIST;
	245	if (m_dialogStyle & wxMULTIPLE )
	246	msw_flags \|=
	247	#if defined(OFN_EXPLORER)
	248	OFN_EXPLORER \|
	249	#endif // OFN_EXPLORER
	250	OFN_ALLOWMULTISELECT;
	251
	252	OPENFILENAME of;
	253	wxZeroMemory(of);
	254
	255	// the OPENFILENAME struct has been extended in newer version of
	256	// comcdlg32.dll, but as we don't use the extended fields anyhow, set
	257	// the struct size to the old value - otherwise, the programs compiled
	258	// with new headers will not work with the old libraries
	259	#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
	260	of.lStructSize = sizeof(OPENFILENAME) -
	261	(sizeof(void ) + 2sizeof(DWORD));
	262	#else // old headers
	263	of.lStructSize = sizeof(OPENFILENAME);
	264	#endif
	265
	266	of.hwndOwner = hWnd;
	267	of.lpstrTitle = WXSTRINGCAST m_message;
	268	of.lpstrFileTitle = titleBuffer;
	269	of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; // Windows 3.0 and 3.1
	270
	271	// Convert forward slashes to backslashes (file selector doesn't like
	272	// forward slashes)
	273	size_t i = 0;
	274	size_t len = m_dir.Length();
	275	for (i = 0; i < len; i++)
	276	if (m_dir[i] == wxT('/'))
	277	m_dir[i] = wxT('\\');
	278
	279	of.lpstrInitialDir = m_dir.c_str();
	280
	281	of.Flags = msw_flags;
	282
	283
	284	//=== Like Alejandro Sierra's wildcard modification >>===================
	285	/*
	286	In wxFileSelector you can put, instead of a single wild_card,
	287	pairs of strings separated by '\|'.
	288	The first string is a description, and the
	289	second is the wild card. You can put any number of pairs.
	290
	291	eg. "description1 (.ex1)\|.ex1\|description2 (.ex2)\|.ex2"
	292
	293	If you put a single wild card, it works as before the modification.
	294	*/
	295	//=======================================================================
	296
	297	wxString theFilter;
	298	if ( wxStrlen(m_wildCard) == 0 )
	299	theFilter = wxString(wxT("."));
	300	else
	301	theFilter = m_wildCard ;
	302	wxString filterBuffer;
	303
	304	if ( !wxStrchr( theFilter, wxT('\|') ) ) { // only one filter ==> default text
	305	filterBuffer.Printf(_("Files (%s)\|%s"),
	306	theFilter.c_str(), theFilter.c_str());
	307	}
	308	else { // more then one filter
	309	filterBuffer = theFilter;
	310
	311	}
	312
	313	filterBuffer += wxT("\|");
	314	// Replace \| with \0
	315	for (i = 0; i < filterBuffer.Len(); i++ ) {
	316	if ( filterBuffer.GetChar(i) == wxT('\|') ) {
	317	filterBuffer[i] = wxT('\0');
	318	}
	319	}
	320
	321	of.lpstrFilter = (LPTSTR)(const wxChar *)filterBuffer;
	322	of.nFilterIndex = m_filterIndex + 1;
	323
	324	//=== Setting defaultFileName >>=========================================
	325
	326	wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
	327	fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
	328
	329	of.lpstrFile = fileNameBuffer; // holds returned filename
	330	of.nMaxFile = wxMAXPATH;
	331
	332	//== Execute FileDialog >>=================================================
	333
	334	bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
	335	: GetOpenFileName(&of)) != 0;
	336
	337	DWORD errCode = CommDlgExtendedError();
	338
	339	#ifdef __WIN32__
	340	if (!success && (errCode == CDERR_STRUCTSIZE))
	341	{
	342	// The struct size has changed so try a smaller or bigger size
	343
	344	int oldStructSize = of.lStructSize;
	345	of.lStructSize = oldStructSize - (sizeof(void ) + 2sizeof(DWORD));
	346	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	347	: (GetOpenFileName(&of) != 0);
	348	errCode = CommDlgExtendedError();
	349
	350	if (!success && (errCode == CDERR_STRUCTSIZE))
	351	{
	352	of.lStructSize = oldStructSize + (sizeof(void ) + 2sizeof(DWORD));
	353	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	354	: (GetOpenFileName(&of) != 0);
	355	}
	356	}
	357	#endif
	358
	359	if ( success )
	360	{
	361	m_fileNames.Empty();
	362
	363	if ( ( m_dialogStyle & wxMULTIPLE ) &&
	364	#if defined(OFN_EXPLORER)
	365	( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) )
	366	#else
	367	( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) )
	368	#endif // OFN_EXPLORER
	369	{
	370	#if defined(OFN_EXPLORER)
	371	m_dir = fileNameBuffer;
	372	i = of.nFileOffset;
	373	m_fileName = &fileNameBuffer[i];
	374	m_fileNames.Add(m_fileName);
	375	i += m_fileName.Len() + 1;
	376
	377	while (fileNameBuffer[i] != wxT('\0'))
	378	{
	379	m_fileNames.Add(&fileNameBuffer[i]);
	380	i += wxStrlen(&fileNameBuffer[i]) + 1;
	381	}
	382	#else
	383	wxStringTokenizer toke(fileNameBuffer, " \t\r\n");
	384	m_dir = toke.GetNextToken();
	385	m_fileName = toke.GetNextToken();
	386	m_fileNames.Add(m_fileName);
	387
	388	while (toke.HasMoreTokens())
	389	m_fileNames.Add(toke.GetNextToken());
	390	#endif // OFN_EXPLORER
	391
	392	wxString dir(m_dir);
	393	if ( m_dir.Last() != _T('\\') )
	394	dir += _T('\\');
	395
	396	m_fileNames.Sort();
	397	m_path = dir + m_fileName;
	398	}
	399	else
	400	{
	401	const wxChar* extension = NULL;
	402
	403	//=== Adding the correct extension >>=================================
	404
	405	m_filterIndex = (int)of.nFilterIndex - 1;
	406
	407	if ( !of.nFileExtension \|\| (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
	408	{ // user has typed an filename
	409	// without an extension:
	410
	411	int maxFilter = (int)(of.nFilterIndex*2L-1L);
	412	extension = filterBuffer;
	413
	414	for( int i = 0; i < maxFilter; i++ ) { // get extension
	415	extension = extension + wxStrlen( extension ) +1;
	416	}
	417
	418	extension = wxStrrchr( extension, wxT('.') );
	419	if ( extension // != "blabla"
	420	&& !wxStrrchr( extension, wxT('') ) // != "blabla."
	421	&& !wxStrrchr( extension, wxT('?') ) // != "blabla.?"
	422	&& extension[1] // != "blabla."
	423	&& extension[1] != wxT(' ') ) // != "blabla. "
	424	{
	425	// now concat extension to the fileName:
	426	m_fileName = wxString(fileNameBuffer) + extension;
	427
	428	int len = wxStrlen( fileNameBuffer );
	429	wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
	430	fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
	431	}
	432	}
	433
	434	m_path = fileNameBuffer;
	435	m_fileName = wxFileNameFromPath(fileNameBuffer);
	436	m_fileNames.Add(m_fileName);
	437	m_dir = wxPathOnly(fileNameBuffer);
	438	}
	439
	440
	441	//=== Simulating the wxOVERWRITE_PROMPT >>============================
	442
	443	if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
	444	::wxFileExists( fileNameBuffer ) )
	445	{
	446	wxString messageText;
	447	messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);
	448
	449	if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
	450	{
	451	success = FALSE;
	452	}
	453	}
	454
	455	}
	456	else
	457	{
	458	// common dialog failed - why?
	459	#ifdef __WXDEBUG__
	460	DWORD dwErr = CommDlgExtendedError();
	461	if ( dwErr != 0 )
	462	{
	463	// this msg is only for developers
	464	wxLogError(wxT("Common dialog failed with error code %0lx."),
	465	dwErr);
	466	}
	467	//else: it was just cancelled
	468	#endif
	469	}
	470
	471	return success ? wxID_OK : wxID_CANCEL;
	472
	473	}
	474
	475	// Generic file load/save dialog (for internal use only)
	476	static
	477	wxString wxDefaultFileSelector(bool load,
	478	const wxChar *what,
	479	const wxChar *extension,
	480	const wxChar *default_name,
	481	wxWindow *parent)
	482	{
	483	wxString prompt;
	484	wxString str;
	485	if (load)
	486	str = _("Load %s file");
	487	else
	488	str = _("Save %s file");
	489	prompt.Printf(str, what);
	490
	491	const wxChar *ext = extension;
	492	if (*ext == wxT('.'))
	493	ext++;
	494
	495	wxString wild;
	496	wild.Printf(wxT("*.%s"), ext);
	497
	498	return wxFileSelector(prompt, NULL, default_name, ext, wild,
	499	load ? wxOPEN : wxSAVE, parent);
	500	}
	501
	502	// Generic file load dialog
	503	WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
	504	const wxChar *extension,
	505	const wxChar *default_name,
	506	wxWindow *parent)
	507	{
	508	return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
	509	}
	510
	511	// Generic file save dialog
	512	WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
	513	const wxChar *extension,
	514	const wxChar *default_name,
	515	wxWindow *parent)
	516	{
	517	return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
	518	}
	519
	520	#endif // wxUSE_FILEDLG
	521