src/gtk/filectrl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/filectrl.cpp
   3 // Purpose:     wxGtkFileCtrl Implementation
   4 // Author:      Diaa M. Sami
   5 // Created:     2007-08-10
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Diaa M. Sami
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14 #pragma hdrstop
  15 #endif
  16
  17 #include "wx/filectrl.h"
  18
  19 #if wxUSE_FILECTRL && !defined(__WXUNIVERSAL__)
  20
  21 #ifndef WX_PRECOMP
  22 #    include "wx/sizer.h"
  23 #    include "wx/debug.h"
  24 #endif
  25
  26 #include "wx/gtk/private.h"
  27 #include "wx/filedlg.h"
  28 #include "wx/filename.h"
  29 #include "wx/scopeguard.h"
  30 #include "wx/tokenzr.h"
  31
  32 //-----------------------------------------------------------------------------
  33 // wxGtkFileChooser implementation
  34 //-----------------------------------------------------------------------------
  35
  36 void wxGtkFileChooser::SetWidget(GtkFileChooser *w)
  37 {
  38     // check arguments
  39     wxASSERT( w );
  40     wxASSERT( GTK_FILE_CHOOSER( w ) );
  41
  42     this->m_widget = w;
  43 }
  44
  45 wxString wxGtkFileChooser::GetPath() const
  46 {
  47     wxGtkString str( gtk_file_chooser_get_filename( m_widget ) );
  48
  49     wxString string;
  50     if (str.c_str() != NULL)
  51         string = wxString::FromUTF8(str);
  52     return string;
  53 }
  54
  55 void wxGtkFileChooser::GetFilenames( wxArrayString& files ) const
  56 {
  57     GetPaths( files );
  58     for ( size_t n = 0; n < files.GetCount(); ++n )
  59     {
  60         const wxFileName file( files[n] );
  61         files[n] = file.GetFullName();
  62     }
  63 }
  64
  65 void wxGtkFileChooser::GetPaths( wxArrayString& paths ) const
  66 {
  67     paths.Empty();
  68     if ( gtk_file_chooser_get_select_multiple( m_widget ) )
  69     {
  70         GSList *gpathsi = gtk_file_chooser_get_filenames( m_widget );
  71         GSList *gpaths = gpathsi;
  72         while ( gpathsi )
  73         {
  74             wxString file(wxString::FromUTF8(static_cast<gchar *>(gpathsi->data)));
  75             paths.Add( file );
  76             g_free( gpathsi->data );
  77             gpathsi = gpathsi->next;
  78         }
  79
  80         g_slist_free( gpaths );
  81     }
  82     else
  83         paths.Add( GetPath() );
  84 }
  85
  86 bool wxGtkFileChooser::SetPath( const wxString& path )
  87 {
  88     if ( path.empty() )
  89         return true;
  90
  91     return gtk_file_chooser_set_filename( m_widget, path.utf8_str() );
  92 }
  93
  94 bool wxGtkFileChooser::SetDirectory( const wxString& dir )
  95 {
  96     return gtk_file_chooser_set_current_folder( m_widget, dir.utf8_str() ) != 0;
  97 }
  98
  99 wxString wxGtkFileChooser::GetDirectory() const
 100 {
 101     const wxGtkString str( gtk_file_chooser_get_current_folder( m_widget ) );
 102     return wxString::FromUTF8(str);
 103 }
 104
 105 wxString wxGtkFileChooser::GetFilename() const
 106 {
 107     return wxFileName( GetPath() ).GetFullName();
 108 }
 109
 110 void wxGtkFileChooser::SetWildcard( const wxString& wildCard )
 111 {
 112     m_wildcards.Empty();
 113
 114     // parse filters
 115     wxArrayString wildDescriptions, wildFilters;
 116
 117     if ( !wxParseCommonDialogsFilter( wildCard, wildDescriptions, wildFilters ) )
 118     {
 119         wxFAIL_MSG( wxT( "wxGtkFileChooser::SetWildcard - bad wildcard string" ) );
 120     }
 121     else
 122     {
 123         // Parsing went fine. Set m_wildCard to be returned by wxGtkFileChooserBase::GetWildcard
 124         GtkFileChooser* chooser = m_widget;
 125
 126         // empty current filter list:
 127         GSList* ifilters = gtk_file_chooser_list_filters( chooser );
 128         GSList* filters = ifilters;
 129
 130         m_ignoreNextFilterEvent = true;
 131         wxON_BLOCK_EXIT_SET(m_ignoreNextFilterEvent, false);
 132
 133         while ( ifilters )
 134         {
 135             gtk_file_chooser_remove_filter( chooser, GTK_FILE_FILTER( ifilters->data ) );
 136             ifilters = ifilters->next;
 137         }
 138         g_slist_free( filters );
 139
 140         if (!wildCard.empty())
 141         {
 142             // add parsed to GtkChooser
 143             for ( size_t n = 0; n < wildFilters.GetCount(); ++n )
 144             {
 145                 GtkFileFilter* filter = gtk_file_filter_new();
 146
 147                 gtk_file_filter_set_name( filter, wxGTK_CONV_SYS( wildDescriptions[n] ) );
 148
 149                 wxStringTokenizer exttok( wildFilters[n], wxT( ";" ) );
 150
 151                 int n1 = 1;
 152                 while ( exttok.HasMoreTokens() )
 153                 {
 154                     wxString token = exttok.GetNextToken();
 155                     gtk_file_filter_add_pattern( filter, wxGTK_CONV_SYS( token ) );
 156
 157                     if (n1 == 1)
 158                         m_wildcards.Add( token ); // Only add first pattern to list, used later when saving
 159                     n1++;
 160                 }
 161
 162                 gtk_file_chooser_add_filter( chooser, filter );
 163             }
 164
 165             // Reset the filter index
 166             SetFilterIndex( 0 );
 167         }
 168     }
 169 }
 170
 171 void wxGtkFileChooser::SetFilterIndex( int filterIndex )
 172 {
 173     gpointer filter;
 174     GtkFileChooser *chooser = m_widget;
 175     GSList *filters = gtk_file_chooser_list_filters( chooser );
 176
 177     filter = g_slist_nth_data( filters, filterIndex );
 178
 179     if ( filter != NULL )
 180     {
 181         gtk_file_chooser_set_filter( chooser, GTK_FILE_FILTER( filter ) );
 182     }
 183     else
 184     {
 185         wxFAIL_MSG( wxT( "wxGtkFileChooser::SetFilterIndex - bad filter index" ) );
 186     }
 187
 188     g_slist_free( filters );
 189 }
 190
 191 int wxGtkFileChooser::GetFilterIndex() const
 192 {
 193     GtkFileChooser *chooser = m_widget;
 194     GtkFileFilter *filter = gtk_file_chooser_get_filter( chooser );
 195     GSList *filters = gtk_file_chooser_list_filters( chooser );
 196     const gint index = g_slist_index( filters, filter );
 197     g_slist_free( filters );
 198
 199     if ( index == -1 )
 200     {
 201         wxFAIL_MSG( wxT( "wxGtkFileChooser::GetFilterIndex - bad filter index returned by gtk+" ) );
 202         return 0;
 203     }
 204     else
 205         return index;
 206 }
 207
 208 bool wxGtkFileChooser::HasFilterChoice() const
 209 {
 210     return gtk_file_chooser_get_filter( m_widget ) != NULL;
 211 }
 212
 213 //-----------------------------------------------------------------------------
 214 // end wxGtkFileChooser Implementation
 215 //-----------------------------------------------------------------------------
 216
 217 #if wxUSE_FILECTRL
 218
 219 // gtk signal handlers
 220
 221 extern "C"
 222 {
 223     static void
 224     gtkfilechooserwidget_file_activated_callback( GtkWidget *WXUNUSED( widget ), wxGtkFileCtrl *fileCtrl )
 225     {
 226         GenerateFileActivatedEvent( fileCtrl, fileCtrl );
 227     }
 228 }
 229
 230 extern "C"
 231 {
 232     static void
 233     gtkfilechooserwidget_selection_changed_callback( GtkWidget *WXUNUSED( widget ), wxGtkFileCtrl *fileCtrl )
 234     {
 235         // check next selection event and ignore it if it has 0 files
 236         // because such events are redundantly generated by gtk.
 237         if ( fileCtrl->m_checkNextSelEvent )
 238         {
 239             wxArrayString filenames;
 240             fileCtrl->GetFilenames( filenames );
 241
 242             if ( filenames.Count() != 0 )
 243                 fileCtrl->m_checkNextSelEvent = false;
 244         }
 245
 246         if ( !fileCtrl->m_checkNextSelEvent )
 247             GenerateSelectionChangedEvent( fileCtrl, fileCtrl );
 248     }
 249 }
 250
 251 extern "C"
 252 {
 253     static void
 254     gtkfilechooserwidget_folder_changed_callback( GtkWidget *WXUNUSED( widget ), wxGtkFileCtrl *fileCtrl )
 255     {
 256         if ( fileCtrl->m_ignoreNextFolderChangeEvent )
 257         {
 258             fileCtrl->m_ignoreNextFolderChangeEvent = false;
 259         }
 260         else
 261         {
 262             GenerateFolderChangedEvent( fileCtrl, fileCtrl );
 263         }
 264
 265         fileCtrl->m_checkNextSelEvent = true;
 266     }
 267 }
 268
 269 extern "C"
 270 {
 271     static void
 272     gtkfilechooserwidget_notify_callback( GObject *WXUNUSED( gobject ), GParamSpec *arg1, wxGtkFileCtrl *fileCtrl )
 273     {
 274         const char *name = g_param_spec_get_name (arg1);
 275         if ( strcmp( name, "filter" ) == 0 &&
 276              fileCtrl->HasFilterChoice() &&
 277              !fileCtrl->GTKShouldIgnoreNextFilterEvent() )
 278         {
 279             GenerateFilterChangedEvent( fileCtrl, fileCtrl );
 280         }
 281     }
 282 }
 283
 284 // wxGtkFileCtrl implementation
 285
 286 IMPLEMENT_DYNAMIC_CLASS( wxGtkFileCtrl, wxControl )
 287
 288 void wxGtkFileCtrl::Init()
 289 {
 290     m_checkNextSelEvent = false;
 291
 292     // ignore the first folder change event which is fired upon startup.
 293     m_ignoreNextFolderChangeEvent = true;
 294 }
 295
 296 bool wxGtkFileCtrl::Create( wxWindow *parent,
 297                             wxWindowID id,
 298                             const wxString& defaultDirectory,
 299                             const wxString& defaultFileName,
 300                             const wxString& wildCard,
 301                             long style,
 302                             const wxPoint& pos,
 303                             const wxSize& size,
 304                             const wxString& name )
 305 {
 306     if ( !PreCreation( parent, pos, size ) ||
 307             !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ) )
 308     {
 309         wxFAIL_MSG( wxT( "wxGtkFileCtrl creation failed" ) );
 310         return false;
 311     }
 312
 313     GtkFileChooserAction gtkAction = GTK_FILE_CHOOSER_ACTION_OPEN;
 314
 315     if ( style & wxFC_SAVE )
 316         gtkAction = GTK_FILE_CHOOSER_ACTION_SAVE;
 317
 318     m_widget =  gtk_alignment_new ( 0, 0, 1, 1 );
 319     g_object_ref(m_widget);
 320     m_fcWidget = GTK_FILE_CHOOSER( gtk_file_chooser_widget_new(gtkAction) );
 321     gtk_widget_show ( GTK_WIDGET( m_fcWidget ) );
 322     gtk_container_add ( GTK_CONTAINER ( m_widget ), GTK_WIDGET( m_fcWidget ) );
 323
 324     m_focusWidget = GTK_WIDGET( m_fcWidget );
 325
 326     g_signal_connect ( m_fcWidget, "file-activated",
 327                        G_CALLBACK ( gtkfilechooserwidget_file_activated_callback ),
 328                        this );
 329
 330     g_signal_connect ( m_fcWidget, "current-folder-changed",
 331                        G_CALLBACK ( gtkfilechooserwidget_folder_changed_callback ),
 332                        this );
 333
 334     g_signal_connect ( m_fcWidget, "selection-changed",
 335                        G_CALLBACK ( gtkfilechooserwidget_selection_changed_callback ),
 336                        this );
 337
 338     g_signal_connect ( m_fcWidget, "notify",
 339                        G_CALLBACK ( gtkfilechooserwidget_notify_callback ),
 340                        this );
 341
 342     m_fc.SetWidget( m_fcWidget );
 343
 344     if ( style & wxFC_MULTIPLE )
 345         gtk_file_chooser_set_select_multiple( m_fcWidget, true );
 346
 347     SetWildcard( wildCard );
 348
 349     // if defaultDir is specified it should contain the directory and
 350     // defaultFileName should contain the default name of the file, however if
 351     // directory is not given, defaultFileName contains both
 352     wxFileName fn;
 353     if ( defaultDirectory.empty() )
 354         fn.Assign( defaultFileName );
 355     else if ( !defaultFileName.empty() )
 356         fn.Assign( defaultDirectory, defaultFileName );
 357     else
 358         fn.AssignDir( defaultDirectory );
 359
 360     // set the initial file name and/or directory
 361     const wxString dir = fn.GetPath();
 362     if ( !dir.empty() )
 363     {
 364         gtk_file_chooser_set_current_folder( m_fcWidget,
 365                                              dir.fn_str() );
 366     }
 367
 368     const wxString fname = fn.GetFullName();
 369     if ( style & wxFC_SAVE )
 370     {
 371         if ( !fname.empty() )
 372         {
 373             gtk_file_chooser_set_current_name( m_fcWidget,
 374                                                fname.fn_str() );
 375         }
 376     }
 377     else // wxFC_OPEN
 378     {
 379         if ( !fname.empty() )
 380         {
 381             gtk_file_chooser_set_filename( m_fcWidget,
 382                                            fn.GetFullPath().fn_str() );
 383         }
 384     }
 385
 386     m_parent->DoAddChild( this );
 387
 388     PostCreation( size );
 389
 390     return TRUE;
 391 }
 392
 393 bool wxGtkFileCtrl::SetPath( const wxString& path )
 394 {
 395     return m_fc.SetPath( path );
 396 }
 397
 398 bool wxGtkFileCtrl::SetDirectory( const wxString& dir )
 399 {
 400     return m_fc.SetDirectory( dir );
 401 }
 402
 403 bool wxGtkFileCtrl::SetFilename( const wxString& name )
 404 {
 405     if ( HasFlag( wxFC_SAVE ) )
 406     {
 407         gtk_file_chooser_set_current_name( m_fcWidget, wxGTK_CONV( name ) );
 408         return true;
 409     }
 410     else
 411         return SetPath( wxFileName( GetDirectory(), name ).GetFullPath() );
 412 }
 413
 414 void wxGtkFileCtrl::SetWildcard( const wxString& wildCard )
 415 {
 416     m_wildCard = wildCard;
 417
 418     m_fc.SetWildcard( wildCard );
 419 }
 420
 421 void wxGtkFileCtrl::SetFilterIndex( int filterIndex )
 422 {
 423     m_fc.SetFilterIndex( filterIndex );
 424 }
 425
 426 wxString wxGtkFileCtrl::GetPath() const
 427 {
 428     return m_fc.GetPath();
 429 }
 430
 431 void wxGtkFileCtrl::GetPaths( wxArrayString& paths ) const
 432 {
 433     m_fc.GetPaths( paths );
 434 }
 435
 436 wxString wxGtkFileCtrl::GetDirectory() const
 437 {
 438     return m_fc.GetDirectory();
 439 }
 440
 441 wxString wxGtkFileCtrl::GetFilename() const
 442 {
 443     return m_fc.GetFilename();
 444 }
 445
 446 void wxGtkFileCtrl::GetFilenames( wxArrayString& files ) const
 447 {
 448     m_fc.GetFilenames( files );
 449 }
 450
 451 void wxGtkFileCtrl::ShowHidden(bool show)
 452 {
 453     // gtk_file_chooser_set_show_hidden() is new in 2.6
 454     g_object_set (G_OBJECT (m_fcWidget), "show-hidden", show, NULL);
 455 }
 456
 457 #endif // wxUSE_FILECTRL
 458
 459 #endif // wxUSE_FILECTRL && !defined(__WXUNIVERSAL__)