]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/filedlg.cpp
Removed spurious wxCHECK which forgot about the possibility of ~wxScreenDC...
[wxWidgets.git] / src / msw / filedlg.cpp
index 16c2e4a98a605bd4e268806105adac8402490e4f..805374a8e92b0e2e7832d5ffb168ce438f8a4772 100644 (file)
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filedlg.cpp
+// Name:        src/msw/filedlg.cpp
 // Purpose:     wxFileDialog
 // Author:      Julian Smart
 // Modified by:
@@ -9,47 +9,83 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
 #ifdef __GNUG__
-#pragma implementation "filedlg.h"
+    #pragma implementation "filedlg.h"
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/defs.h"
-#include "wx/utils.h"
-#include "wx/msgdlg.h"
-#include "wx/dialog.h"
-#include "wx/filedlg.h"
-#include "wx/intl.h"
+    #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 <windows.h>
+#include "wx/msw/private.h"
 
-#if !defined(__WIN32__) || defined(__SALFORDC__)
-#include <commdlg.h>
+#if !defined(__WIN32__) || defined(__SALFORDC__) || defined(__WXWINE__)
+    #include <commdlg.h>
 #endif
 
-#include "wx/msw/private.h"
-
 #include <math.h>
 #include <stdlib.h>
 #include <string.h>
 
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_CLASS(wxFileDialog, wxDialog)
+#include "wx/tokenzr.h"
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+#ifdef __WIN32__
+# define wxMAXPATH   4096
+#else
+# define wxMAXPATH   1024
 #endif
 
-char *wxFileSelector(const char *title,
-                     const char *defaultDir, const char *defaultFileName,
-                     const char *defaultExtension, const char *filter, int flags,
-                     wxWindow *parent, int x, int y)
+# 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
@@ -65,7 +101,7 @@ char *wxFileSelector(const char *title,
 
     wxString filter2;
     if ( defaultExtension && !filter )
-        filter2 = wxString("*.") + defaultExtension;
+        filter2 = wxString(wxT("*.")) + defaultExtension;
     else if ( filter )
         filter2 = filter;
 
@@ -80,23 +116,22 @@ char *wxFileSelector(const char *title,
     wxFileDialog fileDialog(parent, title, defaultDirString,
                             defaultFilenameString, filter2,
                             flags, wxPoint(x, y));
-    if( Strlen(defaultExtension) != 0 )
+    if( wxStrlen(defaultExtension) != 0 )
     {
-        int filterFind = 1,
+        int filterFind = 0,
             filterIndex = 0;
 
         for( unsigned int i = 0; i < filter2.Len(); i++ )
         {
-            if( filter2.GetChar(i) == '|' )
+            if( filter2.GetChar(i) == wxT('|') )
             {
                 // save the start index of the new filter
                 unsigned int is = i++;
-                filterIndex++;
 
                 // find the end of the filter
                 for( ; i < filter2.Len(); i++ )
                 {
-                    if(filter2[i] == '|')
+                    if(filter2[i] == wxT('|'))
                         break;
                 }
 
@@ -108,64 +143,52 @@ char *wxFileSelector(const char *title,
                         break;
                     }
                 }
+
+                filterIndex++;
             }
         }
 
         fileDialog.SetFilterIndex(filterFind);
     }
 
+    wxString filename;
     if ( fileDialog.ShowModal() == wxID_OK )
     {
-        strcpy(wxBuffer, (const char *)fileDialog.GetPath());
-        return wxBuffer;
+        filename = fileDialog.GetPath();
     }
-    else
-        return NULL;
-}
-
-# if __BORLANDC__
-#   include <dir.h>  // for MAXPATH etc. ( Borland 3.1 )
-# endif
 
-# ifndef MAXPATH
-# define MAXPATH   400
-# endif
-
-# ifndef MAXDRIVE
-# define MAXDRIVE  3
-# endif
-
-# ifndef MAXFILE
-# define MAXFILE   9
-# endif
-
-# ifndef MAXEXT
-# define MAXEXT    5
-# endif
+    return filename;
+}
 
 
-char *wxFileSelectorEx(const char *title,
-                       const char *defaultDir,
-                       const char *defaultFileName,
+wxString wxFileSelectorEx(const wxChar *title,
+                       const wxChar *defaultDir,
+                       const wxChar *defaultFileName,
                        int* defaultFilterIndex,
-                       const char *filter,
+                       const wxChar *filter,
                        int       flags,
                        wxWindow* parent,
                        int       x,
                        int       y)
 
 {
-    wxFileDialog fileDialog(parent, title ? title : "", defaultDir ? defaultDir : "",
-        defaultFileName ? defaultFileName : "", filter ? filter : "", flags, wxPoint(x, 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 )
     {
-        *defaultFilterIndex = fileDialog.GetFilterIndex();
-        strcpy(wxBuffer, (const char *)fileDialog.GetPath());
-        return wxBuffer;
+        if ( defaultFilterIndex )
+            *defaultFilterIndex = fileDialog.GetFilterIndex();
+
+        filename = fileDialog.GetPath();
     }
-    else
-        return NULL;
+
+    return filename;
 }
 
 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
@@ -174,53 +197,86 @@ wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 {
     m_message = message;
     m_dialogStyle = style;
+    if ( ( m_dialogStyle & wxMULTIPLE ) && ( m_dialogStyle & wxSAVE ) )
+        m_dialogStyle &= ~wxMULTIPLE;
     m_parent = parent;
-    m_path = "";
+    m_path = wxT("");
     m_fileName = defaultFileName;
     m_dir = defaultDir;
     m_wildCard = wildCard;
-    m_filterIndex = 1;
+    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(void)
+int wxFileDialog::ShowModal()
 {
     HWND hWnd = 0;
     if (m_parent) hWnd = (HWND) m_parent->GetHWND();
+    if (!hWnd && wxTheApp->GetTopWindow())
+        hWnd = (HWND) wxTheApp->GetTopWindow()->GetHWND();
 
-    static char  fileNameBuffer [ MAXPATH ];           // the file-name
-    char         titleBuffer    [ MAXFILE+1+MAXEXT ];  // the file-name, without path
+    static wxChar fileNameBuffer [ wxMAXPATH ];           // the file-name
+    wxChar        titleBuffer    [ wxMAXFILE+1+wxMAXEXT ];  // the file-name, without path
 
-    *fileNameBuffer = '\0';
-    *titleBuffer    = '\0';
+    *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;
-    memset(&of, 0, sizeof(OPENFILENAME));
-
-    of.lpstrCustomFilter = NULL;   // system should not save custom filter
-    of.nMaxCustFilter    = 0L;
-
-    of.nFileOffset       = 0;      // 0-based pointer to filname in lpstFile
-    of.nFileExtension    = 0;      // 0-based pointer to extension in lpstrFile
-    of.lpstrDefExt       = NULL;   // no default extension
-
+    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);
-    of.hwndOwner         = hWnd;
-    of.lpstrTitle        = (char *)(const char *)m_message;
-
+#endif
 
+    of.hwndOwner         = hWnd;
+    of.lpstrTitle        = WXSTRINGCAST m_message;
     of.lpstrFileTitle    = titleBuffer;
-    of.nMaxFileTitle     = MAXFILE + 1 + MAXEXT;    // Windows 3.0 and 3.1
+    of.nMaxFileTitle     = wxMAXFILE + 1 + wxMAXEXT;    // Windows 3.0 and 3.1
 
-    of.lpstrInitialDir   = (const char *) m_dir;
+    // 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.Flags             = msw_flags;
+    of.lpstrInitialDir   = m_dir.c_str();
 
+    of.Flags             = msw_flags;
 
 
     //=== Like Alejandro Sierra's wildcard modification >>===================
@@ -236,76 +292,148 @@ int wxFileDialog::ShowModal(void)
      */
     //=======================================================================
 
-    wxString theFilter = ( Strlen(m_wildCard) == 0 ) ? "*.*" : m_wildCard;
+    wxString theFilter;
+    if ( wxStrlen(m_wildCard) == 0 )
+        theFilter = wxString(wxT("*.*"));
+    else
+        theFilter = m_wildCard ;
     wxString filterBuffer;
 
-    if ( !strchr( theFilter, '|' ) ) {    // only one filter ==> default text
+    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;
 
-        for ( unsigned int i = 0; i < filterBuffer.Len(); i++ ) {
-            if ( filterBuffer.GetChar(i) == '|' ) {
-                filterBuffer[i] = '\0';
-            }
+    }
+
+    filterBuffer += wxT("|");
+    // Replace | with \0
+    for (i = 0; i < filterBuffer.Len(); i++ ) {
+        if ( filterBuffer.GetChar(i) == wxT('|') ) {
+            filterBuffer[i] = wxT('\0');
         }
     }
 
-    of.lpstrFilter  = (LPSTR)(const char *)filterBuffer;
-    of.nFilterIndex = m_filterIndex;
+    of.lpstrFilter  = (LPTSTR)(const wxChar *)filterBuffer;
+    of.nFilterIndex = m_filterIndex + 1;
 
     //=== Setting defaultFileName >>=========================================
 
-    strncpy( fileNameBuffer, (const char *)m_fileName, MAXPATH-1 );
-    fileNameBuffer[ MAXPATH-1 ] = '\0';
+    wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 );
+    fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0');
 
     of.lpstrFile = fileNameBuffer;  // holds returned filename
-    of.nMaxFile  = MAXPATH;
+    of.nMaxFile  = wxMAXPATH;
 
     //== Execute FileDialog >>=================================================
 
-    bool success = (m_dialogStyle & wxSAVE) ? (GetSaveFileName(&of) != 0)
+    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 )
     {
-        const char* extension = NULL;
+        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 >>=================================
+            //=== Adding the correct extension >>=================================
 
-        m_filterIndex = (int)of.nFilterIndex;
+            m_filterIndex = (int)of.nFilterIndex - 1;
 
-        if ( of.nFileExtension && fileNameBuffer[ of.nFileExtension-1] != '.' )
-        {                                    // user has typed an filename
-            // without an extension:
+            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;
+                int   maxFilter = (int)(of.nFilterIndex*2L-1L);
+                extension = filterBuffer;
 
-            for( int i = 0; i < maxFilter; i++ ) {          // get extension
-                extension = extension + strlen( extension ) +1;
-            }
+                for( int i = 0; i < maxFilter; i++ ) {          // get extension
+                    extension = extension + wxStrlen( extension ) +1;
+                }
 
-            extension = strrchr( extension, '.' );
-            if (  extension                                 // != "blabla"
-                    && !strrchr( extension, '*' )             // != "blabla.*"
-                    && !strrchr( extension, '?' )             // != "blabla.?"
-                    && extension[1]                           // != "blabla."
-                    && extension[1] != ' ' )                  // != "blabla. "
-            {
-                // now concat extension to the fileName:
-                m_fileName = wxString(fileNameBuffer) + extension;
+                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 = strlen( fileNameBuffer );
-                strncpy( fileNameBuffer + len, extension, MAXPATH - len );
-                fileNameBuffer[ MAXPATH -1 ] = '\0';
+                    int len = wxStrlen( fileNameBuffer );
+                    wxStrncpy( fileNameBuffer + len, extension, wxMAXPATH - len );
+                    fileNameBuffer[ wxMAXPATH -1 ] = wxT('\0');
+                }
             }
-        }
 
-        m_path = fileNameBuffer;
-        m_fileName = wxFileNameFromPath(fileNameBuffer);
+            m_path = fileNameBuffer;
+            m_fileName = wxFileNameFromPath(fileNameBuffer);
+            m_fileNames.Add(m_fileName);
+            m_dir = wxPathOnly(fileNameBuffer);
+        }
 
 
         //=== Simulating the wxOVERWRITE_PROMPT >>============================
@@ -322,48 +450,66 @@ int wxFileDialog::ShowModal(void)
             }
         }
 
-    } // END: if ( success )
+    }
+    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) ;
+    return success ? wxID_OK : wxID_CANCEL;
 
 }
 
-// Generic file load/save dialog
-static char *
-wxDefaultFileSelector(bool load, const char *what, const char *extension, const char *default_name, wxWindow *parent)
+// 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");
+  if (load) str = _("Load %s file");
+  else str = _("Save %s file");
   prompt.Printf(str, what);
 
-  const char *ext = extension;
-  if (*ext == '.')
+  const wxChar *ext = extension;
+  if (*ext == wxT('.'))
       ext++;
 
   wxString wild;
-  wild.Printf("*.%s", ext);
+  wild.Printf(wxT("*.%s"), ext);
 
   return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
 }
 
 // Generic file load dialog
-char *
-wxLoadFileSelector(const char *what, const char *extension, const char *default_name, wxWindow *parent)
+WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
+                                        const wxChar *extension,
+                                        const wxChar *default_name,
+                                        wxWindow *parent)
 {
-  return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
+    return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
 }
 
-
 // Generic file save dialog
-char *
-wxSaveFileSelector(const char *what, const char *extension, const char *default_name, wxWindow *parent)
+WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
+                                        const wxChar *extension,
+                                        const wxChar *default_name,
+                                        wxWindow *parent)
 {
-  return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
+    return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
 }