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"

#ifndef OFN_EXPLORER
    #define OFN_EXPLORER 0x00080000
#endif

// ----------------------------------------------------------------------------
// 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 )
    {
        // OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
        msw_flags |= OFN_EXPLORER | OFN_ALLOWMULTISELECT;
    }

    // if wxCHANGE_DIR flag is not given we shouldn't change the CWD
    if ( !(m_dialogStyle & wxCHANGE_DIR) )
    {
        msw_flags |= OFN_NOCHANGEDIR;
    }

    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	#ifndef OFN_EXPLORER
	56	#define OFN_EXPLORER 0x00080000
	57	#endif
	58
	59	// ----------------------------------------------------------------------------
	60	// constants
	61	// ----------------------------------------------------------------------------
	62
	63	#ifdef __WIN32__
	64	# define wxMAXPATH 4096
	65	#else
	66	# define wxMAXPATH 1024
	67	#endif
	68
	69	# define wxMAXFILE 1024
	70
	71	# define wxMAXEXT 5
	72
	73	// ============================================================================
	74	// implementation
	75	// ============================================================================
	76
	77	// ----------------------------------------------------------------------------
	78	// wxWin macros
	79	// ----------------------------------------------------------------------------
	80
	81	IMPLEMENT_CLASS(wxFileDialog, wxDialog)
	82
	83	// ----------------------------------------------------------------------------
	84	// global functions
	85	// ----------------------------------------------------------------------------
	86
	87	wxString wxFileSelector(const wxChar *title,
	88	const wxChar *defaultDir,
	89	const wxChar *defaultFileName,
	90	const wxChar *defaultExtension,
	91	const wxChar *filter,
	92	int flags,
	93	wxWindow *parent,
	94	int x, int y)
	95	{
	96	// In the original implementation, defaultExtension is passed to the
	97	// lpstrDefExt member of OPENFILENAME. This extension, if non-NULL, is
	98	// appended to the filename if the user fails to type an extension. The new
	99	// implementation (taken from wxFileSelectorEx) appends the extension
	100	// automatically, by looking at the filter specification. In fact this
	101	// should be better than the native Microsoft implementation because
	102	// Windows only allows one default extension, whereas here we do the
	103	// right thing depending on the filter the user has chosen.
	104
	105	// If there's a default extension specified but no filter, we create a
	106	// suitable filter.
	107
	108	wxString filter2;
	109	if ( defaultExtension && !filter )
	110	filter2 = wxString(wxT("*.")) + defaultExtension;
	111	else if ( filter )
	112	filter2 = filter;
	113
	114	wxString defaultDirString;
	115	if (defaultDir)
	116	defaultDirString = defaultDir;
	117
	118	wxString defaultFilenameString;
	119	if (defaultFileName)
	120	defaultFilenameString = defaultFileName;
	121
	122	wxFileDialog fileDialog(parent, title, defaultDirString,
	123	defaultFilenameString, filter2,
	124	flags, wxPoint(x, y));
	125	if( wxStrlen(defaultExtension) != 0 )
	126	{
	127	int filterFind = 0,
	128	filterIndex = 0;
	129
	130	for( unsigned int i = 0; i < filter2.Len(); i++ )
	131	{
	132	if( filter2.GetChar(i) == wxT('\|') )
	133	{
	134	// save the start index of the new filter
	135	unsigned int is = i++;
	136
	137	// find the end of the filter
	138	for( ; i < filter2.Len(); i++ )
	139	{
	140	if(filter2[i] == wxT('\|'))
	141	break;
	142	}
	143
	144	if( i-is-1 > 0 && is+1 < filter2.Len() )
	145	{
	146	if( filter2.Mid(is+1,i-is-1).Contains(defaultExtension) )
	147	{
	148	filterFind = filterIndex;
	149	break;
	150	}
	151	}
	152
	153	filterIndex++;
	154	}
	155	}
	156
	157	fileDialog.SetFilterIndex(filterFind);
	158	}
	159
	160	wxString filename;
	161	if ( fileDialog.ShowModal() == wxID_OK )
	162	{
	163	filename = fileDialog.GetPath();
	164	}
	165
	166	return filename;
	167	}
	168
	169
	170	wxString wxFileSelectorEx(const wxChar *title,
	171	const wxChar *defaultDir,
	172	const wxChar *defaultFileName,
	173	int* defaultFilterIndex,
	174	const wxChar *filter,
	175	int flags,
	176	wxWindow* parent,
	177	int x,
	178	int y)
	179
	180	{
	181	wxFileDialog fileDialog(parent,
	182	title ? title : wxT(""),
	183	defaultDir ? defaultDir : wxT(""),
	184	defaultFileName ? defaultFileName : wxT(""),
	185	filter ? filter : wxT(""),
	186	flags, wxPoint(x, y));
	187
	188	wxString filename;
	189	if ( fileDialog.ShowModal() == wxID_OK )
	190	{
	191	if ( defaultFilterIndex )
	192	*defaultFilterIndex = fileDialog.GetFilterIndex();
	193
	194	filename = fileDialog.GetPath();
	195	}
	196
	197	return filename;
	198	}
	199
	200	wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
	201	const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
	202	long style, const wxPoint& WXUNUSED(pos))
	203	{
	204	m_message = message;
	205	m_dialogStyle = style;
	206	if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
	207	m_dialogStyle &= ~wxMULTIPLE;
	208	m_parent = parent;
	209	m_path = wxT("");
	210	m_fileName = defaultFileName;
	211	m_dir = defaultDir;
	212	m_wildCard = wildCard;
	213	m_filterIndex = 0;
	214	}
	215
	216	void wxFileDialog::GetPaths(wxArrayString& paths) const
	217	{
	218	paths.Empty();
	219
	220	wxString dir(m_dir);
	221	if ( m_dir.Last() != _T('\\') )
	222	dir += _T('\\');
	223
	224	size_t count = m_fileNames.GetCount();
	225	for ( size_t n = 0; n < count; n++ )
	226	{
	227	paths.Add(dir + m_fileNames[n]);
	228	}
	229	}
	230
	231	int wxFileDialog::ShowModal()
	232	{
	233	HWND hWnd = 0;
	234	if (m_parent) hWnd = (HWND) m_parent->GetHWND();
	235	if (!hWnd && wxTheApp->GetTopWindow())
	236	hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
	237
	238	static wxChar fileNameBuffer [ wxMAXPATH ]; // the file-name
	239	wxChar titleBuffer [ wxMAXFILE+1+wxMAXEXT ]; // the file-name, without path
	240
	241	*fileNameBuffer = wxT('\0');
	242	*titleBuffer = wxT('\0');
	243
	244	long msw_flags = 0;
	245	if ( (m_dialogStyle & wxHIDE_READONLY) \|\| (m_dialogStyle & wxSAVE) )
	246	msw_flags \|= OFN_HIDEREADONLY;
	247	if ( m_dialogStyle & wxFILE_MUST_EXIST )
	248	msw_flags \|= OFN_PATHMUSTEXIST \| OFN_FILEMUSTEXIST;
	249
	250	if (m_dialogStyle & wxMULTIPLE )
	251	{
	252	// OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT
	253	msw_flags \|= OFN_EXPLORER \| OFN_ALLOWMULTISELECT;
	254	}
	255
	256	// if wxCHANGE_DIR flag is not given we shouldn't change the CWD
	257	if ( !(m_dialogStyle & wxCHANGE_DIR) )
	258	{
	259	msw_flags \|= OFN_NOCHANGEDIR;
	260	}
	261
	262	OPENFILENAME of;
	263	wxZeroMemory(of);
	264
	265	// the OPENFILENAME struct has been extended in newer version of
	266	// comcdlg32.dll, but as we don't use the extended fields anyhow, set
	267	// the struct size to the old value - otherwise, the programs compiled
	268	// with new headers will not work with the old libraries
	269	#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0500)
	270	of.lStructSize = sizeof(OPENFILENAME) -
	271	(sizeof(void ) + 2sizeof(DWORD));
	272	#else // old headers
	273	of.lStructSize = sizeof(OPENFILENAME);
	274	#endif
	275
	276	of.hwndOwner = hWnd;
	277	of.lpstrTitle = WXSTRINGCAST m_message;
	278	of.lpstrFileTitle = titleBuffer;
	279	of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; // Windows 3.0 and 3.1
	280
	281	// Convert forward slashes to backslashes (file selector doesn't like
	282	// forward slashes)
	283	size_t i = 0;
	284	size_t len = m_dir.Length();
	285	for (i = 0; i < len; i++)
	286	if (m_dir[i] == wxT('/'))
	287	m_dir[i] = wxT('\\');
	288
	289	of.lpstrInitialDir = m_dir.c_str();
	290
	291	of.Flags = msw_flags;
	292
	293
	294	//=== Like Alejandro Sierra's wildcard modification >>===================
	295	/*
	296	In wxFileSelector you can put, instead of a single wild_card,
	297	pairs of strings separated by '\|'.
	298	The first string is a description, and the
	299	second is the wild card. You can put any number of pairs.
	300
	301	eg. "description1 (.ex1)\|.ex1\|description2 (.ex2)\|.ex2"
	302
	303	If you put a single wild card, it works as before the modification.
	304	*/
	305	//=======================================================================
	306
	307	wxString theFilter;
	308	if ( wxStrlen(m_wildCard) == 0 )
	309	theFilter = wxString(wxT("."));
	310	else
	311	theFilter = m_wildCard ;
	312	wxString filterBuffer;
	313
	314	if ( !wxStrchr( theFilter, wxT('\|') ) ) { // only one filter ==> default text
	315	filterBuffer.Printf(_("Files (%s)\|%s"),
	316	theFilter.c_str(), theFilter.c_str());
	317	}
	318	else { // more then one filter
	319	filterBuffer = theFilter;
	320
	321	}
	322
	323	filterBuffer += wxT("\|");
	324	// Replace \| with \0
	325	for (i = 0; i < filterBuffer.Len(); i++ ) {
	326	if ( filterBuffer.GetChar(i) == wxT('\|') ) {
	327	filterBuffer[i] = wxT('\0');
	328	}
	329	}
	330
	331	of.lpstrFilter = (LPTSTR)(const wxChar *)filterBuffer;
	332	of.nFilterIndex = m_filterIndex + 1;
	333
	334	//=== Setting defaultFileName >>=========================================
	335
	336	wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
	337	fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
	338
	339	of.lpstrFile = fileNameBuffer; // holds returned filename
	340	of.nMaxFile = wxMAXPATH;
	341
	342	//== Execute FileDialog >>=================================================
	343
	344	bool success = (m_dialogStyle & wxSAVE ? GetSaveFileName(&of)
	345	: GetOpenFileName(&of)) != 0;
	346
	347	DWORD errCode = CommDlgExtendedError();
	348
	349	#ifdef __WIN32__
	350	if (!success && (errCode == CDERR_STRUCTSIZE))
	351	{
	352	// The struct size has changed so try a smaller or bigger size
	353
	354	int oldStructSize = of.lStructSize;
	355	of.lStructSize = oldStructSize - (sizeof(void ) + 2sizeof(DWORD));
	356	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	357	: (GetOpenFileName(&of) != 0);
	358	errCode = CommDlgExtendedError();
	359
	360	if (!success && (errCode == CDERR_STRUCTSIZE))
	361	{
	362	of.lStructSize = oldStructSize + (sizeof(void ) + 2sizeof(DWORD));
	363	success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
	364	: (GetOpenFileName(&of) != 0);
	365	}
	366	}
	367	#endif
	368
	369	if ( success )
	370	{
	371	m_fileNames.Empty();
	372
	373	if ( ( m_dialogStyle & wxMULTIPLE ) &&
	374	#if defined(OFN_EXPLORER)
	375	( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) )
	376	#else
	377	( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) )
	378	#endif // OFN_EXPLORER
	379	{
	380	#if defined(OFN_EXPLORER)
	381	m_dir = fileNameBuffer;
	382	i = of.nFileOffset;
	383	m_fileName = &fileNameBuffer[i];
	384	m_fileNames.Add(m_fileName);
	385	i += m_fileName.Len() + 1;
	386
	387	while (fileNameBuffer[i] != wxT('\0'))
	388	{
	389	m_fileNames.Add(&fileNameBuffer[i]);
	390	i += wxStrlen(&fileNameBuffer[i]) + 1;
	391	}
	392	#else
	393	wxStringTokenizer toke(fileNameBuffer, " \t\r\n");
	394	m_dir = toke.GetNextToken();
	395	m_fileName = toke.GetNextToken();
	396	m_fileNames.Add(m_fileName);
	397
	398	while (toke.HasMoreTokens())
	399	m_fileNames.Add(toke.GetNextToken());
	400	#endif // OFN_EXPLORER
	401
	402	wxString dir(m_dir);
	403	if ( m_dir.Last() != _T('\\') )
	404	dir += _T('\\');
	405
	406	m_fileNames.Sort();
	407	m_path = dir + m_fileName;
	408	}
	409	else
	410	{
	411	const wxChar* extension = NULL;
	412
	413	//=== Adding the correct extension >>=================================
	414
	415	m_filterIndex = (int)of.nFilterIndex - 1;
	416
	417	if ( !of.nFileExtension \|\| (of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != wxT('.')) )
	418	{ // user has typed an filename
	419	// without an extension:
	420
	421	int maxFilter = (int)(of.nFilterIndex*2L-1L);
	422	extension = filterBuffer;
	423
	424	for( int i = 0; i < maxFilter; i++ ) { // get extension
	425	extension = extension + wxStrlen( extension ) +1;
	426	}
	427
	428	extension = wxStrrchr( extension, wxT('.') );
	429	if ( extension // != "blabla"
	430	&& !wxStrrchr( extension, wxT('') ) // != "blabla."
	431	&& !wxStrrchr( extension, wxT('?') ) // != "blabla.?"
	432	&& extension[1] // != "blabla."
	433	&& extension[1] != wxT(' ') ) // != "blabla. "
	434	{
	435	// now concat extension to the fileName:
	436	m_fileName = wxString(fileNameBuffer) + extension;
	437
	438	int len = wxStrlen( fileNameBuffer );
	439	wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
	440	fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
	441	}
	442	}
	443
	444	m_path = fileNameBuffer;
	445	m_fileName = wxFileNameFromPath(fileNameBuffer);
	446	m_fileNames.Add(m_fileName);
	447	m_dir = wxPathOnly(fileNameBuffer);
	448	}
	449
	450
	451	//=== Simulating the wxOVERWRITE_PROMPT >>============================
	452
	453	if ( (m_dialogStyle & wxOVERWRITE_PROMPT) &&
	454	::wxFileExists( fileNameBuffer ) )
	455	{
	456	wxString messageText;
	457	messageText.Printf(_("Replace file '%s'?"), fileNameBuffer);
	458
	459	if ( wxMessageBox(messageText, m_message, wxYES_NO ) != wxYES )
	460	{
	461	success = FALSE;
	462	}
	463	}
	464
	465	}
	466	else
	467	{
	468	// common dialog failed - why?
	469	#ifdef __WXDEBUG__
	470	DWORD dwErr = CommDlgExtendedError();
	471	if ( dwErr != 0 )
	472	{
	473	// this msg is only for developers
	474	wxLogError(wxT("Common dialog failed with error code %0lx."),
	475	dwErr);
	476	}
	477	//else: it was just cancelled
	478	#endif
	479	}
	480
	481	return success ? wxID_OK : wxID_CANCEL;
	482
	483	}
	484
	485	// Generic file load/save dialog (for internal use only)
	486	static
	487	wxString wxDefaultFileSelector(bool load,
	488	const wxChar *what,
	489	const wxChar *extension,
	490	const wxChar *default_name,
	491	wxWindow *parent)
	492	{
	493	wxString prompt;
	494	wxString str;
	495	if (load)
	496	str = _("Load %s file");
	497	else
	498	str = _("Save %s file");
	499	prompt.Printf(str, what);
	500
	501	const wxChar *ext = extension;
	502	if (*ext == wxT('.'))
	503	ext++;
	504
	505	wxString wild;
	506	wild.Printf(wxT("*.%s"), ext);
	507
	508	return wxFileSelector(prompt, NULL, default_name, ext, wild,
	509	load ? wxOPEN : wxSAVE, parent);
	510	}
	511
	512	// Generic file load dialog
	513	WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
	514	const wxChar *extension,
	515	const wxChar *default_name,
	516	wxWindow *parent)
	517	{
	518	return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
	519	}
	520
	521	// Generic file save dialog
	522	WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
	523	const wxChar *extension,
	524	const wxChar *default_name,
	525	wxWindow *parent)
	526	{
	527	return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
	528	}
	529
	530	#endif // wxUSE_FILEDLG
	531