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 #include "wx/dirdlg.h"
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/string.h"
  26     #include "wx/intl.h"
  27     #include "wx/window.h"
  28 #endif // WX_PRECOMP
  29
  30 //----------------------------------------------------------------------------
  31 // wxFileDialogBase
  32 //----------------------------------------------------------------------------
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxFileDialogBase, wxDialog)
  35
  36 void wxFileDialogBase::Init()
  37 {
  38     m_filterIndex = 0;
  39     m_windowStyle = 0;
  40     m_extraControl = NULL;
  41     m_extraControlCreator = NULL;
  42 }
  43
  44 bool wxFileDialogBase::Create(wxWindow *parent,
  45                               const wxString& message,
  46                               const wxString& defaultDir,
  47                               const wxString& defaultFile,
  48                               const wxString& wildCard,
  49                               long style,
  50                               const wxPoint& WXUNUSED(pos),
  51                               const wxSize& WXUNUSED(sz),
  52                               const wxString& WXUNUSED(name))
  53 {
  54     m_message = message;
  55     m_dir = defaultDir;
  56     m_fileName = defaultFile;
  57     m_wildCard = wildCard;
  58
  59     m_parent = parent;
  60     m_windowStyle = style;
  61     m_filterIndex = 0;
  62
  63     if (!HasFdFlag(wxFD_OPEN) && !HasFdFlag(wxFD_SAVE))
  64         m_windowStyle |= wxFD_OPEN;     // wxFD_OPEN is the default
  65
  66     // check that the styles are not contradictory
  67     wxASSERT_MSG( !(HasFdFlag(wxFD_SAVE) && HasFdFlag(wxFD_OPEN)),
  68                   _T("can't specify both wxFD_SAVE and wxFD_OPEN at once") );
  69
  70     wxASSERT_MSG( !HasFdFlag(wxFD_SAVE) ||
  71                     (!HasFdFlag(wxFD_MULTIPLE) && !HasFdFlag(wxFD_FILE_MUST_EXIST)),
  72                    _T("wxFD_MULTIPLE or wxFD_FILE_MUST_EXIST can't be used with wxFD_SAVE" ) );
  73
  74     wxASSERT_MSG( !HasFdFlag(wxFD_OPEN) || !HasFdFlag(wxFD_OVERWRITE_PROMPT),
  75                   _T("wxFD_OVERWRITE_PROMPT can't be used with wxFD_OPEN") );
  76
  77     if ( wildCard.empty() || wildCard == wxFileSelectorDefaultWildcardStr )
  78     {
  79         m_wildCard = wxString::Format(_("All files (%s)|%s"),
  80                                       wxFileSelectorDefaultWildcardStr,
  81                                       wxFileSelectorDefaultWildcardStr);
  82     }
  83     else // have wild card
  84     {
  85         // convert m_wildCard from "*.bar" to "bar files (*.bar)|*.bar"
  86         if ( m_wildCard.Find(wxT('|')) == wxNOT_FOUND )
  87         {
  88             wxString::size_type nDot = m_wildCard.find(_T("*."));
  89             if ( nDot != wxString::npos )
  90                 nDot++;
  91             else
  92                 nDot = 0;
  93
  94             m_wildCard = wxString::Format
  95                          (
  96                             _("%s files (%s)|%s"),
  97                             wildCard.c_str() + nDot,
  98                             wildCard.c_str(),
  99                             wildCard.c_str()
 100                          );
 101         }
 102     }
 103
 104     return true;
 105 }
 106
 107 #if WXWIN_COMPATIBILITY_2_6
 108 long wxFileDialogBase::GetStyle() const
 109 {
 110     return GetWindowStyle();
 111 }
 112
 113 void wxFileDialogBase::SetStyle(long style)
 114 {
 115     SetWindowStyle(style);
 116 }
 117 #endif // WXWIN_COMPATIBILITY_2_6
 118
 119
 120 wxString wxFileDialogBase::AppendExtension(const wxString &filePath,
 121                                            const wxString &extensionList)
 122 {
 123     // strip off path, to avoid problems with "path.bar/foo"
 124     wxString fileName = filePath.AfterLast(wxFILE_SEP_PATH);
 125
 126     // if fileName is of form "foo.bar" it's ok, return it
 127     int idx_dot = fileName.Find(wxT('.'), true);
 128     if ((idx_dot != wxNOT_FOUND) && (idx_dot < (int)fileName.length() - 1))
 129         return filePath;
 130
 131     // get the first extension from extensionList, or all of it
 132     wxString ext = extensionList.BeforeFirst(wxT(';'));
 133
 134     // if ext == "foo" or "foo." there's no extension
 135     int idx_ext_dot = ext.Find(wxT('.'), true);
 136     if ((idx_ext_dot == wxNOT_FOUND) || (idx_ext_dot == (int)ext.length() - 1))
 137         return filePath;
 138     else
 139         ext = ext.AfterLast(wxT('.'));
 140
 141     // if ext == "*" or "bar*" or "b?r" or " " then its not valid
 142     if ((ext.Find(wxT('*')) != wxNOT_FOUND) ||
 143         (ext.Find(wxT('?')) != wxNOT_FOUND) ||
 144         (ext.Strip(wxString::both).empty()))
 145         return filePath;
 146
 147     // if fileName doesn't have a '.' then add one
 148     if (filePath.Last() != wxT('.'))
 149         ext = wxT(".") + ext;
 150
 151     return filePath + ext;
 152 }
 153
 154 bool wxFileDialogBase::SetExtraControlCreator(ExtraControlCreatorFunction c)
 155 {
 156     wxCHECK_MSG( !m_extraControlCreator, false,
 157                  "wxFileDialog::SetExtraControl() called second time" );
 158
 159     m_extraControlCreator = c;
 160     return SupportsExtraControl();
 161 }
 162
 163 bool wxFileDialogBase::CreateExtraControl()
 164 {
 165     if (!m_extraControlCreator || m_extraControl)
 166         return false;
 167     m_extraControl = (*m_extraControlCreator)(this);
 168     return true;
 169 }
 170
 171 //----------------------------------------------------------------------------
 172 // wxFileDialog convenience functions
 173 //----------------------------------------------------------------------------
 174
 175 wxString wxFileSelector(const wxString& title,
 176                         const wxString& defaultDir,
 177                         const wxString& defaultFileName,
 178                         const wxString& defaultExtension,
 179                         const wxString& filter,
 180                         int flags,
 181                         wxWindow *parent,
 182                         int x, int y)
 183 {
 184     // The defaultExtension, if non-empty, 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.empty() && filter.empty() )
 197         filter2 = wxString(wxT("*.")) + defaultExtension;
 198     else if ( !filter.empty() )
 199         filter2 = filter;
 200
 201     wxFileDialog fileDialog(parent, title, defaultDir,
 202                             defaultFileName, filter2,
 203                             flags, wxPoint(x, y));
 204
 205     // if filter is of form "All files (*)|*|..." set correct filter index
 206     if ( !defaultExtension.empty() && filter2.find(wxT('|')) != wxString::npos )
 207     {
 208         int filterIndex = 0;
 209
 210         wxArrayString descriptions, filters;
 211         // don't care about errors, handled already by wxFileDialog
 212         (void)wxParseCommonDialogsFilter(filter2, descriptions, filters);
 213         for (size_t n=0; n<filters.GetCount(); n++)
 214         {
 215             if (filters[n].Contains(defaultExtension))
 216             {
 217                 filterIndex = n;
 218                 break;
 219             }
 220         }
 221
 222         if (filterIndex > 0)
 223             fileDialog.SetFilterIndex(filterIndex);
 224     }
 225
 226     wxString filename;
 227     if ( fileDialog.ShowModal() == wxID_OK )
 228     {
 229         filename = fileDialog.GetPath();
 230     }
 231
 232     return filename;
 233 }
 234
 235 //----------------------------------------------------------------------------
 236 // wxFileSelectorEx
 237 //----------------------------------------------------------------------------
 238
 239 wxString wxFileSelectorEx(const wxString& title,
 240                           const wxString& defaultDir,
 241                           const wxString& defaultFileName,
 242                           int*            defaultFilterIndex,
 243                           const wxString& filter,
 244                           int             flags,
 245                           wxWindow*       parent,
 246                           int             x,
 247                           int             y)
 248
 249 {
 250     wxFileDialog fileDialog(parent,
 251                             title,
 252                             defaultDir,
 253                             defaultFileName,
 254                             filter,
 255                             flags, wxPoint(x, y));
 256
 257     wxString filename;
 258     if ( fileDialog.ShowModal() == wxID_OK )
 259     {
 260         if ( defaultFilterIndex )
 261             *defaultFilterIndex = fileDialog.GetFilterIndex();
 262
 263         filename = fileDialog.GetPath();
 264     }
 265
 266     return filename;
 267 }
 268
 269 //----------------------------------------------------------------------------
 270 // wxDefaultFileSelector - Generic load/save dialog (for internal use only)
 271 //----------------------------------------------------------------------------
 272
 273 static wxString wxDefaultFileSelector(bool load,
 274                                       const wxString& what,
 275                                       const wxString& extension,
 276                                       const wxString& default_name,
 277                                       wxWindow *parent)
 278 {
 279     wxString prompt;
 280     wxString str;
 281     if (load)
 282         str = _("Load %s file");
 283     else
 284         str = _("Save %s file");
 285     prompt.Printf(str, what);
 286
 287     wxString wild;
 288     wxString ext;
 289     if ( !extension.empty() )
 290     {
 291         if ( extension[0u] == _T('.') )
 292             ext = extension.substr(1);
 293         else
 294             ext = extension;
 295
 296         wild.Printf(wxT("*.%s"), ext);
 297     }
 298     else // no extension specified
 299     {
 300         wild = wxFileSelectorDefaultWildcardStr;
 301     }
 302
 303     return wxFileSelector(prompt, wxEmptyString, default_name, ext, wild,
 304                           load ? wxFD_OPEN : wxFD_SAVE, parent);
 305 }
 306
 307 //----------------------------------------------------------------------------
 308 // wxLoadFileSelector
 309 //----------------------------------------------------------------------------
 310
 311 WXDLLEXPORT wxString wxLoadFileSelector(const wxString& what,
 312                                         const wxString& extension,
 313                                         const wxString& default_name,
 314                                         wxWindow *parent)
 315 {
 316     return wxDefaultFileSelector(true, what, extension, default_name, parent);
 317 }
 318
 319 //----------------------------------------------------------------------------
 320 // wxSaveFileSelector
 321 //----------------------------------------------------------------------------
 322
 323 WXDLLEXPORT wxString wxSaveFileSelector(const wxString& what,
 324                                         const wxString& extension,
 325                                         const wxString& default_name,
 326                                         wxWindow *parent)
 327 {
 328     return wxDefaultFileSelector(false, what, extension, default_name, parent);
 329 }
 330
 331
 332 //----------------------------------------------------------------------------
 333 // wxDirDialogBase
 334 //----------------------------------------------------------------------------
 335
 336 #if WXWIN_COMPATIBILITY_2_6
 337 long wxDirDialogBase::GetStyle() const
 338 {
 339     return GetWindowStyle();
 340 }
 341
 342 void wxDirDialogBase::SetStyle(long style)
 343 {
 344     SetWindowStyle(style);
 345 }
 346 #endif // WXWIN_COMPATIBILITY_2_6
 347
 348
 349 #endif // wxUSE_FILEDLG