src/common/fldlgcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/fldlgcmn.cpp
   3 // Purpose:     wxFileDialog common functions
   4 // Author:      John Labenski
   5 // Modified by:
   6 // Created:     14.06.03 (extracted from src/*/filedlg.cpp)
   7 // RCS-ID:
   8 // Copyright:   (c) Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "filedlg.h"
  14 #endif
  15
  16 #ifdef __BORLANDC__
  17 #pragma hdrstop
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/string.h"
  25     #include "wx/intl.h"
  26     #include "wx/window.h"
  27 #endif // WX_PRECOMP
  28
  29 #include "wx/filedlg.h"
  30
  31 #if wxUSE_FILEDLG
  32
  33 //----------------------------------------------------------------------------
  34 // wxFileDialogBase
  35 //----------------------------------------------------------------------------
  36
  37 IMPLEMENT_DYNAMIC_CLASS(wxFileDialogBase, wxDialog)
  38
  39 wxFileDialogBase::wxFileDialogBase(wxWindow *parent,
  40                                    const wxString& message,
  41                                    const wxString& defaultDir,
  42                                    const wxString& defaultFile,
  43                                    const wxString& wildCard,
  44                                    long style,
  45                                    const wxPoint& WXUNUSED(pos))
  46                 : m_message(message),
  47                   m_dir(defaultDir),
  48                   m_fileName(defaultFile),
  49                   m_wildCard(wildCard)
  50 {
  51     m_parent = parent;
  52     m_dialogStyle = style;
  53     m_filterIndex = 0;
  54
  55     if ( wildCard.empty() )
  56     {
  57         m_wildCard = wxString::Format(_("All files (%s)|%s"),
  58                                       wxFileSelectorDefaultWildcardStr,
  59                                       wxFileSelectorDefaultWildcardStr);
  60     }
  61     else // have wild card
  62     {
  63         // convert m_wildCard from "*.bar" to "bar files (*.bar)|*.bar"
  64         if ( m_wildCard.Find(wxT('|')) == wxNOT_FOUND )
  65         {
  66             wxString::size_type nDot = m_wildCard.find(_T("*."));
  67             if ( nDot != wxString::npos )
  68                 nDot++;
  69             else
  70                 nDot = 0;
  71
  72             m_wildCard = wxString::Format
  73                          (
  74                             _("%s files (%s)|%s"),
  75                             m_wildCard.c_str() + nDot,
  76                             m_wildCard.c_str(),
  77                             m_wildCard.c_str()
  78                          );
  79         }
  80     }
  81 }
  82
  83 // Parses the filterStr, returning the number of filters.
  84 // Returns 0 if none or if there's a problem.
  85 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpg"
  86
  87 int wxFileDialogBase::ParseWildcard(const wxString& filterStr,
  88                                     wxArrayString& descriptions,
  89                                     wxArrayString& filters)
  90 {
  91     descriptions.Clear();
  92     filters.Clear();
  93
  94     wxString str(filterStr);
  95
  96     wxString description, filter;
  97     for ( int pos = 0; pos != wxNOT_FOUND; )
  98     {
  99         pos = str.Find(wxT('|'));
 100         if ( pos == wxNOT_FOUND )
 101         {
 102             // if there are no '|'s at all in the string just take the entire
 103             // string as filter
 104             if ( filters.IsEmpty() )
 105             {
 106                 descriptions.Add(filterStr);
 107                 filters.Add(filterStr);
 108             }
 109             else
 110             {
 111                 wxFAIL_MSG( _T("missing '|' in the wildcard string!") );
 112             }
 113
 114             break;
 115         }
 116
 117         description = str.Left(pos);
 118         str = str.Mid(pos + 1);
 119         pos = str.Find(wxT('|'));
 120         if ( pos == wxNOT_FOUND )
 121         {
 122             filter = str;
 123         }
 124         else
 125         {
 126             filter = str.Left(pos);
 127             str = str.Mid(pos + 1);
 128         }
 129
 130         descriptions.Add(description);
 131         filters.Add(filter);
 132     }
 133
 134     return filters.GetCount();
 135 }
 136
 137 wxString wxFileDialogBase::AppendExtension(const wxString &filePath,
 138                                            const wxString &extensionList)
 139 {
 140     // strip off path, to avoid problems with "path.bar/foo"
 141     wxString fileName = filePath.AfterLast(wxFILE_SEP_PATH);
 142
 143     // if fileName is of form "foo.bar" it's ok, return it
 144     int idx_dot = fileName.Find(wxT('.'), TRUE);
 145     if ((idx_dot != wxNOT_FOUND) && (idx_dot < (int)fileName.Len() - 1))
 146         return filePath;
 147
 148     // get the first extension from extensionList, or all of it
 149     wxString ext = extensionList.BeforeFirst(wxT(';'));
 150
 151     // if ext == "foo" or "foo." there's no extension
 152     int idx_ext_dot = ext.Find(wxT('.'), TRUE);
 153     if ((idx_ext_dot == wxNOT_FOUND) || (idx_ext_dot == (int)ext.Len() - 1))
 154         return filePath;
 155     else
 156         ext = ext.AfterLast(wxT('.'));
 157
 158     // if ext == "*" or "bar*" or "b?r" or " " then its not valid
 159     if ((ext.Find(wxT('*')) != wxNOT_FOUND) ||
 160         (ext.Find(wxT('?')) != wxNOT_FOUND) ||
 161         (ext.Strip(wxString::both).IsEmpty()))
 162         return filePath;
 163
 164     // if fileName doesn't have a '.' then add one
 165     if (filePath.Last() != wxT('.'))
 166         ext = wxT(".") + ext;
 167
 168     return filePath + ext;
 169 }
 170
 171 //----------------------------------------------------------------------------
 172 // wxFileDialog convenience functions
 173 //----------------------------------------------------------------------------
 174
 175 wxString wxFileSelector(const wxChar *title,
 176                                const wxChar *defaultDir,
 177                                const wxChar *defaultFileName,
 178                                const wxChar *defaultExtension,
 179                                const wxChar *filter,
 180                                int flags,
 181                                wxWindow *parent,
 182                                int x, int y)
 183 {
 184     // The defaultExtension, if non-NULL, is
 185     // appended to the filename if the user fails to type an extension. The new
 186     // implementation (taken from wxFileSelectorEx) appends the extension
 187     // automatically, by looking at the filter specification. In fact this
 188     // should be better than the native Microsoft implementation because
 189     // Windows only allows *one* default extension, whereas here we do the
 190     // right thing depending on the filter the user has chosen.
 191
 192     // If there's a default extension specified but no filter, we create a
 193     // suitable filter.
 194
 195     wxString filter2;
 196     if ( defaultExtension && !filter )
 197         filter2 = wxString(wxT("*.")) + defaultExtension;
 198     else if ( filter )
 199         filter2 = filter;
 200
 201     wxString defaultDirString;
 202     if (defaultDir)
 203         defaultDirString = defaultDir;
 204
 205     wxString defaultFilenameString;
 206     if (defaultFileName)
 207         defaultFilenameString = defaultFileName;
 208
 209     wxFileDialog fileDialog(parent, title, defaultDirString,
 210                             defaultFilenameString, filter2,
 211                             flags, wxPoint(x, y));
 212
 213    // if filter is of form "All files (*)|*|..." set correct filter index
 214     if((wxStrlen(defaultExtension) != 0) && (filter2.Find(wxT('|')) != wxNOT_FOUND))
 215             {
 216         int filterIndex = 0;
 217
 218         wxArrayString descriptions, filters;
 219         // don't care about errors, handled already by wxFileDialog
 220         (void)wxFileDialogBase::ParseWildcard(filter2, descriptions, filters);
 221         for (size_t n=0; n<filters.GetCount(); n++)
 222                 {
 223             if (filters[n].Contains(defaultExtension))
 224                     {
 225                 filterIndex = n;
 226                         break;
 227                     }
 228                 }
 229
 230         if (filterIndex > 0)
 231             fileDialog.SetFilterIndex(filterIndex);
 232         }
 233
 234     wxString filename;
 235     if ( fileDialog.ShowModal() == wxID_OK )
 236     {
 237         filename = fileDialog.GetPath();
 238     }
 239
 240     return filename;
 241 }
 242
 243 //----------------------------------------------------------------------------
 244 // wxFileSelectorEx
 245 //----------------------------------------------------------------------------
 246
 247 wxString wxFileSelectorEx(const wxChar *title,
 248                           const wxChar *defaultDir,
 249                           const wxChar *defaultFileName,
 250                           int* defaultFilterIndex,
 251                           const wxChar *filter,
 252                           int       flags,
 253                           wxWindow* parent,
 254                           int       x,
 255                           int       y)
 256
 257 {
 258     wxFileDialog fileDialog(parent,
 259                             title ? title : wxT(""),
 260                             defaultDir ? defaultDir : wxT(""),
 261                             defaultFileName ? defaultFileName : wxT(""),
 262                             filter ? filter : wxT(""),
 263                             flags, wxPoint(x, y));
 264
 265     wxString filename;
 266     if ( fileDialog.ShowModal() == wxID_OK )
 267     {
 268         if ( defaultFilterIndex )
 269             *defaultFilterIndex = fileDialog.GetFilterIndex();
 270
 271         filename = fileDialog.GetPath();
 272     }
 273
 274     return filename;
 275 }
 276
 277 //----------------------------------------------------------------------------
 278 // wxDefaultFileSelector - Generic load/save dialog (for internal use only)
 279 //----------------------------------------------------------------------------
 280
 281 static wxString wxDefaultFileSelector(bool load,
 282                                       const wxChar *what,
 283                                       const wxChar *extension,
 284                                       const wxChar *default_name,
 285                                       wxWindow *parent)
 286 {
 287     wxString prompt;
 288     wxString str;
 289     if (load)
 290         str = _("Load %s file");
 291     else
 292         str = _("Save %s file");
 293     prompt.Printf(str, what);
 294
 295     wxString wild;
 296     const wxChar *ext = extension;
 297     if ( ext )
 298     {
 299         if ( *ext == wxT('.') )
 300             ext++;
 301
 302         wild.Printf(wxT("*.%s"), ext);
 303     }
 304     else // no extension specified
 305     {
 306         wild = wxFileSelectorDefaultWildcardStr;
 307     }
 308
 309     return wxFileSelector(prompt, NULL, default_name, ext, wild,
 310                           load ? wxOPEN : wxSAVE, parent);
 311 }
 312
 313 //----------------------------------------------------------------------------
 314 // wxLoadFileSelector
 315 //----------------------------------------------------------------------------
 316
 317 WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
 318                                         const wxChar *extension,
 319                                         const wxChar *default_name,
 320                                         wxWindow *parent)
 321 {
 322     return wxDefaultFileSelector(TRUE, what, extension, default_name, parent);
 323 }
 324
 325 //----------------------------------------------------------------------------
 326 // wxSaveFileSelector
 327 //----------------------------------------------------------------------------
 328
 329 WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
 330                                         const wxChar *extension,
 331                                         const wxChar *default_name,
 332                                         wxWindow *parent)
 333 {
 334     return wxDefaultFileSelector(FALSE, what, extension, default_name, parent);
 335 }
 336
 337 #endif // wxUSE_FILEDLG
 338