src/common/fldlgcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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:      $Id$
   8 // Copyright:   (c) Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __BORLANDC__
  13 #pragma hdrstop
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #if wxUSE_FILEDLG
  20
  21 #include "wx/filedlg.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 //----------------------------------------------------------------------------
  30 // wxFileDialogBase
  31 //----------------------------------------------------------------------------
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxFileDialogBase, wxDialog)
  34
  35 void wxFileDialogBase::Init()
  36 {
  37     m_filterIndex =
  38     m_windowStyle = 0;
  39 }
  40
  41 bool wxFileDialogBase::Create(wxWindow *parent,
  42                               const wxString& message,
  43                               const wxString& defaultDir,
  44                               const wxString& defaultFile,
  45                               const wxString& wildCard,
  46                               long style,
  47                               const wxPoint& WXUNUSED(pos),
  48                               const wxSize& WXUNUSED(sz),
  49                               const wxString& WXUNUSED(name))
  50 {
  51     m_message = message;
  52     m_dir = defaultDir;
  53     m_fileName = defaultFile;
  54     m_wildCard = wildCard;
  55
  56     m_parent = parent;
  57     m_windowStyle = style;
  58     m_filterIndex = 0;
  59
  60     if (!HasFlag(wxFD_OPEN) && !HasFlag(wxFD_SAVE))
  61         m_windowStyle |= wxFD_OPEN;     // wxFD_OPEN is the default
  62
  63     // check that the styles are not contradictory
  64     wxASSERT_MSG( !(HasFlag(wxFD_SAVE) && HasFlag(wxFD_OPEN)),
  65                   _T("can't specify both wxFD_SAVE and wxFD_OPEN at once") );
  66
  67     wxASSERT_MSG( !HasFlag(wxFD_SAVE) ||
  68                     (!HasFlag(wxFD_MULTIPLE) && !HasFlag(wxFD_FILE_MUST_EXIST)),
  69                    _T("wxFD_MULTIPLE or wxFD_FILE_MUST_EXIST can't be used with wxFD_SAVE" ) );
  70
  71     wxASSERT_MSG( !HasFlag(wxFD_OPEN) || !HasFlag(wxFD_OVERWRITE_PROMPT),
  72                   _T("wxFD_OVERWRITE_PROMPT can't be used with wxFD_OPEN") );
  73
  74     if ( wildCard.empty() || wildCard == wxFileSelectorDefaultWildcardStr )
  75     {
  76         m_wildCard = wxString::Format(_("All files (%s)|%s"),
  77                                       wxFileSelectorDefaultWildcardStr,
  78                                       wxFileSelectorDefaultWildcardStr);
  79     }
  80     else // have wild card
  81     {
  82         // convert m_wildCard from "*.bar" to "bar files (*.bar)|*.bar"
  83         if ( m_wildCard.Find(wxT('|')) == wxNOT_FOUND )
  84         {
  85             wxString::size_type nDot = m_wildCard.find(_T("*."));
  86             if ( nDot != wxString::npos )
  87                 nDot++;
  88             else
  89                 nDot = 0;
  90
  91             m_wildCard = wxString::Format
  92                          (
  93                             _("%s files (%s)|%s"),
  94                             wildCard.c_str() + nDot,
  95                             wildCard.c_str(),
  96                             wildCard.c_str()
  97                          );
  98         }
  99     }
 100
 101     return true;
 102 }
 103
 104 #if WXWIN_COMPATIBILITY_2_4
 105 // Parses the filterStr, returning the number of filters.
 106 // Returns 0 if none or if there's a problem.
 107 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpg"
 108 int wxFileDialogBase::ParseWildcard(const wxString& filterStr,
 109                                     wxArrayString& descriptions,
 110                                     wxArrayString& filters)
 111 {
 112     return ::wxParseCommonDialogsFilter(filterStr, descriptions, filters);
 113 }
 114 #endif // WXWIN_COMPATIBILITY_2_4
 115
 116 wxString wxFileDialogBase::AppendExtension(const wxString &filePath,
 117                                            const wxString &extensionList)
 118 {
 119     // strip off path, to avoid problems with "path.bar/foo"
 120     wxString fileName = filePath.AfterLast(wxFILE_SEP_PATH);
 121
 122     // if fileName is of form "foo.bar" it's ok, return it
 123     int idx_dot = fileName.Find(wxT('.'), true);
 124     if ((idx_dot != wxNOT_FOUND) && (idx_dot < (int)fileName.length() - 1))
 125         return filePath;
 126
 127     // get the first extension from extensionList, or all of it
 128     wxString ext = extensionList.BeforeFirst(wxT(';'));
 129
 130     // if ext == "foo" or "foo." there's no extension
 131     int idx_ext_dot = ext.Find(wxT('.'), true);
 132     if ((idx_ext_dot == wxNOT_FOUND) || (idx_ext_dot == (int)ext.length() - 1))
 133         return filePath;
 134     else
 135         ext = ext.AfterLast(wxT('.'));
 136
 137     // if ext == "*" or "bar*" or "b?r" or " " then its not valid
 138     if ((ext.Find(wxT('*')) != wxNOT_FOUND) ||
 139         (ext.Find(wxT('?')) != wxNOT_FOUND) ||
 140         (ext.Strip(wxString::both).empty()))
 141         return filePath;
 142
 143     // if fileName doesn't have a '.' then add one
 144     if (filePath.Last() != wxT('.'))
 145         ext = wxT(".") + ext;
 146
 147     return filePath + ext;
 148 }
 149
 150 //----------------------------------------------------------------------------
 151 // wxFileDialog convenience functions
 152 //----------------------------------------------------------------------------
 153
 154 wxString wxFileSelector(const wxChar *title,
 155                                const wxChar *defaultDir,
 156                                const wxChar *defaultFileName,
 157                                const wxChar *defaultExtension,
 158                                const wxChar *filter,
 159                                int flags,
 160                                wxWindow *parent,
 161                                int x, int y)
 162 {
 163     // The defaultExtension, if non-NULL, is
 164     // appended to the filename if the user fails to type an extension. The new
 165     // implementation (taken from wxFileSelectorEx) appends the extension
 166     // automatically, by looking at the filter specification. In fact this
 167     // should be better than the native Microsoft implementation because
 168     // Windows only allows *one* default extension, whereas here we do the
 169     // right thing depending on the filter the user has chosen.
 170
 171     // If there's a default extension specified but no filter, we create a
 172     // suitable filter.
 173
 174     wxString filter2;
 175     if ( defaultExtension && !filter )
 176         filter2 = wxString(wxT("*.")) + defaultExtension;
 177     else if ( filter )
 178         filter2 = filter;
 179
 180     wxString defaultDirString;
 181     if (defaultDir)
 182         defaultDirString = defaultDir;
 183
 184     wxString defaultFilenameString;
 185     if (defaultFileName)
 186         defaultFilenameString = defaultFileName;
 187
 188     wxFileDialog fileDialog(parent, title, defaultDirString,
 189                             defaultFilenameString, filter2,
 190                             flags, wxPoint(x, y));
 191
 192    // if filter is of form "All files (*)|*|..." set correct filter index
 193     if((wxStrlen(defaultExtension) != 0) && (filter2.Find(wxT('|')) != wxNOT_FOUND))
 194     {
 195         int filterIndex = 0;
 196
 197         wxArrayString descriptions, filters;
 198         // don't care about errors, handled already by wxFileDialog
 199         (void)wxParseCommonDialogsFilter(filter2, descriptions, filters);
 200         for (size_t n=0; n<filters.GetCount(); n++)
 201         {
 202             if (filters[n].Contains(defaultExtension))
 203             {
 204                 filterIndex = n;
 205                         break;
 206             }
 207         }
 208
 209         if (filterIndex > 0)
 210             fileDialog.SetFilterIndex(filterIndex);
 211     }
 212
 213     wxString filename;
 214     if ( fileDialog.ShowModal() == wxID_OK )
 215     {
 216         filename = fileDialog.GetPath();
 217     }
 218
 219     return filename;
 220 }
 221
 222 //----------------------------------------------------------------------------
 223 // wxFileSelectorEx
 224 //----------------------------------------------------------------------------
 225
 226 wxString wxFileSelectorEx(const wxChar *title,
 227                           const wxChar *defaultDir,
 228                           const wxChar *defaultFileName,
 229                           int* defaultFilterIndex,
 230                           const wxChar *filter,
 231                           int       flags,
 232                           wxWindow* parent,
 233                           int       x,
 234                           int       y)
 235
 236 {
 237     wxFileDialog fileDialog(parent,
 238                             title ? title : wxEmptyString,
 239                             defaultDir ? defaultDir : wxEmptyString,
 240                             defaultFileName ? defaultFileName : wxEmptyString,
 241                             filter ? filter : wxEmptyString,
 242                             flags, wxPoint(x, y));
 243
 244     wxString filename;
 245     if ( fileDialog.ShowModal() == wxID_OK )
 246     {
 247         if ( defaultFilterIndex )
 248             *defaultFilterIndex = fileDialog.GetFilterIndex();
 249
 250         filename = fileDialog.GetPath();
 251     }
 252
 253     return filename;
 254 }
 255
 256 //----------------------------------------------------------------------------
 257 // wxDefaultFileSelector - Generic load/save dialog (for internal use only)
 258 //----------------------------------------------------------------------------
 259
 260 static wxString wxDefaultFileSelector(bool load,
 261                                       const wxChar *what,
 262                                       const wxChar *extension,
 263                                       const wxChar *default_name,
 264                                       wxWindow *parent)
 265 {
 266     wxString prompt;
 267     wxString str;
 268     if (load)
 269         str = _("Load %s file");
 270     else
 271         str = _("Save %s file");
 272     prompt.Printf(str, what);
 273
 274     wxString wild;
 275     const wxChar *ext = extension;
 276     if ( ext )
 277     {
 278         if ( *ext == wxT('.') )
 279             ext++;
 280
 281         wild.Printf(wxT("*.%s"), ext);
 282     }
 283     else // no extension specified
 284     {
 285         wild = wxFileSelectorDefaultWildcardStr;
 286     }
 287
 288     return wxFileSelector(prompt, NULL, default_name, ext, wild,
 289                           load ? wxFD_OPEN : wxFD_SAVE, parent);
 290 }
 291
 292 //----------------------------------------------------------------------------
 293 // wxLoadFileSelector
 294 //----------------------------------------------------------------------------
 295
 296 WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
 297                                         const wxChar *extension,
 298                                         const wxChar *default_name,
 299                                         wxWindow *parent)
 300 {
 301     return wxDefaultFileSelector(true, what, extension, default_name, parent);
 302 }
 303
 304 //----------------------------------------------------------------------------
 305 // wxSaveFileSelector
 306 //----------------------------------------------------------------------------
 307
 308 WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
 309                                         const wxChar *extension,
 310                                         const wxChar *default_name,
 311                                         wxWindow *parent)
 312 {
 313     return wxDefaultFileSelector(false, what, extension, default_name, parent);
 314 }
 315
 316 #endif // wxUSE_FILEDLG