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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_FILEDLG
  20
  21 #include "wx/filedlg.h"
  22 #include "wx/dirdlg.h"
  23 #include "wx/filename.h"
  24
  25 #ifndef WX_PRECOMP
  26     #include "wx/string.h"
  27     #include "wx/intl.h"
  28     #include "wx/window.h"
  29 #endif // WX_PRECOMP
  30
  31 //----------------------------------------------------------------------------
  32 // wxFileDialogBase
  33 //----------------------------------------------------------------------------
  34
  35 IMPLEMENT_DYNAMIC_CLASS(wxFileDialogBase, wxDialog)
  36
  37 void wxFileDialogBase::Init()
  38 {
  39     m_filterIndex = 0;
  40     m_windowStyle = 0;
  41     m_extraControl = NULL;
  42     m_extraControlCreator = NULL;
  43 }
  44
  45 bool wxFileDialogBase::Create(wxWindow *parent,
  46                               const wxString& message,
  47                               const wxString& defaultDir,
  48                               const wxString& defaultFile,
  49                               const wxString& wildCard,
  50                               long style,
  51                               const wxPoint& WXUNUSED(pos),
  52                               const wxSize& WXUNUSED(sz),
  53                               const wxString& WXUNUSED(name))
  54 {
  55     m_message = message;
  56     m_dir = defaultDir;
  57     m_fileName = defaultFile;
  58     m_wildCard = wildCard;
  59
  60     m_parent = parent;
  61     m_windowStyle = style;
  62     m_filterIndex = 0;
  63
  64     if (!HasFdFlag(wxFD_OPEN) && !HasFdFlag(wxFD_SAVE))
  65         m_windowStyle |= wxFD_OPEN;     // wxFD_OPEN is the default
  66
  67     // check that the styles are not contradictory
  68     wxASSERT_MSG( !(HasFdFlag(wxFD_SAVE) && HasFdFlag(wxFD_OPEN)),
  69                   wxT("can't specify both wxFD_SAVE and wxFD_OPEN at once") );
  70
  71     wxASSERT_MSG( !HasFdFlag(wxFD_SAVE) ||
  72                     (!HasFdFlag(wxFD_MULTIPLE) && !HasFdFlag(wxFD_FILE_MUST_EXIST)),
  73                    wxT("wxFD_MULTIPLE or wxFD_FILE_MUST_EXIST can't be used with wxFD_SAVE" ) );
  74
  75     wxASSERT_MSG( !HasFdFlag(wxFD_OPEN) || !HasFdFlag(wxFD_OVERWRITE_PROMPT),
  76                   wxT("wxFD_OVERWRITE_PROMPT can't be used with wxFD_OPEN") );
  77
  78     if ( wildCard.empty() || wildCard == wxFileSelectorDefaultWildcardStr )
  79     {
  80         m_wildCard = wxString::Format(_("All files (%s)|%s"),
  81                                       wxFileSelectorDefaultWildcardStr,
  82                                       wxFileSelectorDefaultWildcardStr);
  83     }
  84     else // have wild card
  85     {
  86         // convert m_wildCard from "*.bar" to "bar files (*.bar)|*.bar"
  87         if ( m_wildCard.Find(wxT('|')) == wxNOT_FOUND )
  88         {
  89             wxString::size_type nDot = m_wildCard.find(wxT("*."));
  90             if ( nDot != wxString::npos )
  91                 nDot++;
  92             else
  93                 nDot = 0;
  94
  95             m_wildCard = wxString::Format
  96                          (
  97                             _("%s files (%s)|%s"),
  98                             wildCard.c_str() + nDot,
  99                             wildCard.c_str(),
 100                             wildCard.c_str()
 101                          );
 102         }
 103     }
 104
 105     return true;
 106 }
 107
 108 #if WXWIN_COMPATIBILITY_2_6
 109 long wxFileDialogBase::GetStyle() const
 110 {
 111     return GetWindowStyle();
 112 }
 113
 114 void wxFileDialogBase::SetStyle(long style)
 115 {
 116     SetWindowStyle(style);
 117 }
 118 #endif // WXWIN_COMPATIBILITY_2_6
 119
 120
 121 wxString wxFileDialogBase::AppendExtension(const wxString &filePath,
 122                                            const wxString &extensionList)
 123 {
 124     // strip off path, to avoid problems with "path.bar/foo"
 125     wxString fileName = filePath.AfterLast(wxFILE_SEP_PATH);
 126
 127     // if fileName is of form "foo.bar" it's ok, return it
 128     int idx_dot = fileName.Find(wxT('.'), true);
 129     if ((idx_dot != wxNOT_FOUND) && (idx_dot < (int)fileName.length() - 1))
 130         return filePath;
 131
 132     // get the first extension from extensionList, or all of it
 133     wxString ext = extensionList.BeforeFirst(wxT(';'));
 134
 135     // if ext == "foo" or "foo." there's no extension
 136     int idx_ext_dot = ext.Find(wxT('.'), true);
 137     if ((idx_ext_dot == wxNOT_FOUND) || (idx_ext_dot == (int)ext.length() - 1))
 138         return filePath;
 139     else
 140         ext = ext.AfterLast(wxT('.'));
 141
 142     // if ext == "*" or "bar*" or "b?r" or " " then its not valid
 143     if ((ext.Find(wxT('*')) != wxNOT_FOUND) ||
 144         (ext.Find(wxT('?')) != wxNOT_FOUND) ||
 145         (ext.Strip(wxString::both).empty()))
 146         return filePath;
 147
 148     // if fileName doesn't have a '.' then add one
 149     if (filePath.Last() != wxT('.'))
 150         ext = wxT(".") + ext;
 151
 152     return filePath + ext;
 153 }
 154
 155 bool wxFileDialogBase::SetExtraControlCreator(ExtraControlCreatorFunction creator)
 156 {
 157     wxCHECK_MSG( !m_extraControlCreator, false,
 158                  "wxFileDialog::SetExtraControl() called second time" );
 159
 160     m_extraControlCreator = creator;
 161     return SupportsExtraControl();
 162 }
 163
 164 bool wxFileDialogBase::CreateExtraControl()
 165 {
 166     if (!m_extraControlCreator || m_extraControl)
 167         return false;
 168     m_extraControl = (*m_extraControlCreator)(this);
 169     return true;
 170 }
 171
 172 wxSize wxFileDialogBase::GetExtraControlSize()
 173 {
 174     if ( !m_extraControlCreator )
 175         return wxDefaultSize;
 176
 177     // create the extra control in an empty dialog just to find its size: this
 178     // is not terribly efficient but we do need to know the size before
 179     // creating the native dialog and this seems to be the only way
 180     wxDialog dlg(NULL, wxID_ANY, "");
 181     return (*m_extraControlCreator)(&dlg)->GetSize();
 182 }
 183
 184 void wxFileDialogBase::SetPath(const wxString& path)
 185 {
 186     wxString ext;
 187     wxFileName::SplitPath(path, &m_dir, &m_fileName, &ext);
 188     if ( !ext.empty() )
 189         m_fileName << wxT('.') << ext;
 190     m_path = path;
 191 }
 192
 193 void wxFileDialogBase::SetDirectory(const wxString& dir)
 194 {
 195     m_dir = dir;
 196     m_path = wxFileName(m_dir, m_fileName).GetFullPath();
 197 }
 198
 199 void wxFileDialogBase::SetFilename(const wxString& name)
 200 {
 201     m_fileName = name;
 202     m_path = wxFileName(m_dir, m_fileName).GetFullPath();
 203 }
 204
 205 //----------------------------------------------------------------------------
 206 // wxFileDialog convenience functions
 207 //----------------------------------------------------------------------------
 208
 209 wxString wxFileSelector(const wxString& title,
 210                         const wxString& defaultDir,
 211                         const wxString& defaultFileName,
 212                         const wxString& defaultExtension,
 213                         const wxString& filter,
 214                         int flags,
 215                         wxWindow *parent,
 216                         int x, int y)
 217 {
 218     // The defaultExtension, if non-empty, is
 219     // appended to the filename if the user fails to type an extension. The new
 220     // implementation (taken from wxFileSelectorEx) appends the extension
 221     // automatically, by looking at the filter specification. In fact this
 222     // should be better than the native Microsoft implementation because
 223     // Windows only allows *one* default extension, whereas here we do the
 224     // right thing depending on the filter the user has chosen.
 225
 226     // If there's a default extension specified but no filter, we create a
 227     // suitable filter.
 228
 229     wxString filter2;
 230     if ( !defaultExtension.empty() && filter.empty() )
 231         filter2 = wxString(wxT("*.")) + defaultExtension;
 232     else if ( !filter.empty() )
 233         filter2 = filter;
 234
 235     wxFileDialog fileDialog(parent, title, defaultDir,
 236                             defaultFileName, filter2,
 237                             flags, wxPoint(x, y));
 238
 239     // if filter is of form "All files (*)|*|..." set correct filter index
 240     if ( !defaultExtension.empty() && filter2.find(wxT('|')) != wxString::npos )
 241     {
 242         int filterIndex = 0;
 243
 244         wxArrayString descriptions, filters;
 245         // don't care about errors, handled already by wxFileDialog
 246         (void)wxParseCommonDialogsFilter(filter2, descriptions, filters);
 247         for (size_t n=0; n<filters.GetCount(); n++)
 248         {
 249             if (filters[n].Contains(defaultExtension))
 250             {
 251                 filterIndex = n;
 252                 break;
 253             }
 254         }
 255
 256         if (filterIndex > 0)
 257             fileDialog.SetFilterIndex(filterIndex);
 258     }
 259
 260     wxString filename;
 261     if ( fileDialog.ShowModal() == wxID_OK )
 262     {
 263         filename = fileDialog.GetPath();
 264     }
 265
 266     return filename;
 267 }
 268
 269 //----------------------------------------------------------------------------
 270 // wxFileSelectorEx
 271 //----------------------------------------------------------------------------
 272
 273 wxString wxFileSelectorEx(const wxString& title,
 274                           const wxString& defaultDir,
 275                           const wxString& defaultFileName,
 276                           int*            defaultFilterIndex,
 277                           const wxString& filter,
 278                           int             flags,
 279                           wxWindow*       parent,
 280                           int             x,
 281                           int             y)
 282
 283 {
 284     wxFileDialog fileDialog(parent,
 285                             title,
 286                             defaultDir,
 287                             defaultFileName,
 288                             filter,
 289                             flags, wxPoint(x, y));
 290
 291     wxString filename;
 292     if ( fileDialog.ShowModal() == wxID_OK )
 293     {
 294         if ( defaultFilterIndex )
 295             *defaultFilterIndex = fileDialog.GetFilterIndex();
 296
 297         filename = fileDialog.GetPath();
 298     }
 299
 300     return filename;
 301 }
 302
 303 //----------------------------------------------------------------------------
 304 // wxDefaultFileSelector - Generic load/save dialog (for internal use only)
 305 //----------------------------------------------------------------------------
 306
 307 static wxString wxDefaultFileSelector(bool load,
 308                                       const wxString& what,
 309                                       const wxString& extension,
 310                                       const wxString& default_name,
 311                                       wxWindow *parent)
 312 {
 313     wxString prompt;
 314     wxString str;
 315     if (load)
 316         str = _("Load %s file");
 317     else
 318         str = _("Save %s file");
 319     prompt.Printf(str, what);
 320
 321     wxString wild;
 322     wxString ext;
 323     if ( !extension.empty() )
 324     {
 325         if ( extension[0u] == wxT('.') )
 326             ext = extension.substr(1);
 327         else
 328             ext = extension;
 329
 330         wild.Printf(wxT("*.%s"), ext);
 331     }
 332     else // no extension specified
 333     {
 334         wild = wxFileSelectorDefaultWildcardStr;
 335     }
 336
 337     return wxFileSelector(prompt, wxEmptyString, default_name, ext, wild,
 338                           load ? (wxFD_OPEN | wxFD_FILE_MUST_EXIST) : wxFD_SAVE,
 339                           parent);
 340 }
 341
 342 //----------------------------------------------------------------------------
 343 // wxLoadFileSelector
 344 //----------------------------------------------------------------------------
 345
 346 WXDLLEXPORT wxString wxLoadFileSelector(const wxString& what,
 347                                         const wxString& extension,
 348                                         const wxString& default_name,
 349                                         wxWindow *parent)
 350 {
 351     return wxDefaultFileSelector(true, what, extension, default_name, parent);
 352 }
 353
 354 //----------------------------------------------------------------------------
 355 // wxSaveFileSelector
 356 //----------------------------------------------------------------------------
 357
 358 WXDLLEXPORT wxString wxSaveFileSelector(const wxString& what,
 359                                         const wxString& extension,
 360                                         const wxString& default_name,
 361                                         wxWindow *parent)
 362 {
 363     return wxDefaultFileSelector(false, what, extension, default_name, parent);
 364 }
 365
 366
 367 //----------------------------------------------------------------------------
 368 // wxDirDialogBase
 369 //----------------------------------------------------------------------------
 370
 371 #if WXWIN_COMPATIBILITY_2_6
 372 long wxDirDialogBase::GetStyle() const
 373 {
 374     return GetWindowStyle();
 375 }
 376
 377 void wxDirDialogBase::SetStyle(long style)
 378 {
 379     SetWindowStyle(style);
 380 }
 381 #endif // WXWIN_COMPATIBILITY_2_6
 382
 383
 384 #endif // wxUSE_FILEDLG