src/gtk1/filedlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/filedlg.cpp
   3 // Purpose:     native implementation of wxFileDialog
   4 // Author:      Robert Roebling, Zbigniew Zagorski
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "filedlg.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #if wxUSE_FILEDLG && defined(__WXGTK24__)
  18
  19 #include "wx/filedlg.h"
  20 #include "wx/utils.h"
  21 #include "wx/intl.h"
  22 #include "wx/filename.h"
  23 #include "wx/msgdlg.h"
  24
  25 #include <gtk/gtk.h>
  26 #include "wx/gtk/private.h"
  27
  28 //-----------------------------------------------------------------------------
  29 // idle system
  30 //-----------------------------------------------------------------------------
  31
  32 extern void wxapp_install_idle_handler();
  33 extern bool g_isIdle;
  34
  35 //-----------------------------------------------------------------------------
  36 // "clicked" for OK-button
  37 //-----------------------------------------------------------------------------
  38
  39 static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
  40 {
  41     int style = dialog->GetStyle();
  42     gchar* text = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget));
  43     wxString filename(wxGTK_CONV_BACK(text));
  44
  45     if ((style & wxSAVE) && (style & wxOVERWRITE_PROMPT))
  46     {
  47         if (wxFileExists(filename))
  48         {
  49             wxString msg;
  50             msg.Printf(
  51              _("File '%s' already exists, do you really want to overwrite it?"),
  52              filename.c_str());
  53
  54             wxMessageDialog dlg(dialog, msg, _("Confirm"),
  55                                wxYES_NO | wxICON_QUESTION);
  56             if (dlg.ShowModal() != wxID_YES)
  57                 return;
  58         }
  59     }
  60     else if ((style & wxOPEN) && ( style & wxFILE_MUST_EXIST))
  61     {
  62         if (!wxFileExists( filename ))
  63         {
  64             wxMessageDialog dlg(dialog,
  65                                 _("Please choose an existing file."),
  66                                 _("Error"), wxOK | wxICON_ERROR);
  67             dlg.ShowModal();
  68
  69             return;
  70         }
  71     }
  72
  73     // change to the directory where the user went if asked
  74     if (style & wxCHANGE_DIR)
  75     {
  76         wxString cwd;
  77         wxSplitPath(filename, &cwd, NULL, NULL);
  78
  79         if (cwd != wxGetCwd())
  80         {
  81             wxSetWorkingDirectory(cwd);
  82         }
  83     }
  84
  85     dialog->DoSetPath(filename);
  86     dialog->UpdateFromDialog();
  87
  88     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
  89     event.SetEventObject(dialog);
  90     dialog->GetEventHandler()->ProcessEvent(event);
  91 }
  92
  93 //-----------------------------------------------------------------------------
  94 // "clicked" for Cancel-button
  95 //-----------------------------------------------------------------------------
  96
  97 static void gtk_filedialog_cancel_callback(GtkWidget *WXUNUSED(w),
  98                                            wxFileDialog *dialog)
  99 {
 100     wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
 101     event.SetEventObject(dialog);
 102     dialog->GetEventHandler()->ProcessEvent(event);
 103 }
 104
 105 static void gtk_filedialog_response_callback(GtkWidget *w,
 106                                              int response,
 107                                              wxFileDialog *dialog)
 108 {
 109     wxapp_install_idle_handler();
 110
 111     if (response == GTK_RESPONSE_CANCEL)
 112         gtk_filedialog_cancel_callback(w, dialog);
 113     else
 114         gtk_filedialog_ok_callback(w, dialog);
 115 }
 116
 117 //-----------------------------------------------------------------------------
 118 // wxFileDialog
 119 //-----------------------------------------------------------------------------
 120
 121 IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)
 122
 123 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 124                            const wxString& defaultDir,
 125                            const wxString& defaultFileName,
 126                            const wxString& wildCard,
 127                            long style, const wxPoint& pos)
 128     : wxFileDialogBase(parent, message, defaultDir, defaultFileName,
 129                        wildCard, style, pos)
 130 {
 131     m_needParent = FALSE;
 132
 133     if (!PreCreation(parent, pos, wxDefaultSize) ||
 134         !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
 135                     wxDefaultValidator, wxT("filedialog")))
 136     {
 137         wxFAIL_MSG( wxT("wxFileDialog creation failed") );
 138         return;
 139     }
 140
 141     bool multiple = (style & wxMULTIPLE) == wxMULTIPLE;
 142     GtkFileChooserAction gtk_action;
 143     GtkWindow* gtk_parent = NULL;
 144     if (parent)
 145         gtk_parent = GTK_WINDOW(parent->m_widget);
 146
 147     gchar* ok_btn_stock;
 148     if ((style & wxSAVE) == wxSAVE)
 149     {
 150         gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
 151         ok_btn_stock = GTK_STOCK_SAVE;
 152     }
 153     else
 154     {
 155         gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
 156         ok_btn_stock = GTK_STOCK_OPEN;
 157     }
 158     m_widget = gtk_file_chooser_dialog_new(
 159                        wxGTK_CONV(m_message),
 160                        gtk_parent,
 161                        gtk_action,
 162                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 163                        ok_btn_stock, GTK_RESPONSE_ACCEPT,
 164                        NULL);
 165
 166     gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), multiple);
 167
 168     gtk_signal_connect(GTK_OBJECT(m_widget),
 169                              "response",
 170                              GTK_SIGNAL_FUNC(gtk_filedialog_response_callback),
 171                              (gpointer*)this);
 172
 173     m_path = m_dir;
 174     if (!m_path.empty() && m_path.Last() != wxT('/'))
 175         m_path += wxT('/');
 176     m_path += m_fileName;
 177     SetPath(m_path);
 178
 179     SetWildcard(wildCard);
 180     SetFilterIndex(0);
 181 }
 182
 183 void wxFileDialog::SetPath(const wxString& path)
 184 {
 185     DoSetPath(path);
 186     UpdateDialog();
 187 }
 188
 189 void wxFileDialog::GetFilenames(wxArrayString& files) const
 190 {
 191     GetPaths(files);
 192     for (size_t n = 0; n < files.GetCount(); n++ )
 193     {
 194         wxString name,ext;
 195         wxSplitPath(files[n], NULL, &name, &ext);
 196         if (!ext.IsEmpty())
 197         {
 198             name += wxT(".");
 199             name += ext;
 200         }
 201         files[n] = name;
 202     }
 203 }
 204 void wxFileDialog::GetPaths(wxArrayString& paths) const
 205 {
 206     paths.Empty();
 207     if (GetWindowStyle() & wxMULTIPLE)
 208     {
 209         GSList *gpathsi =
 210             gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(m_widget));
 211         GSList *gpaths = gpathsi;
 212         while (gpathsi)
 213         {
 214             wxString file = wxGTK_CONV_BACK((gchar*) gpathsi->data);
 215             paths.Add(file);
 216             g_free(gpathsi->data);
 217             gpathsi = gpathsi->next;
 218         }
 219         if (gpaths)
 220             g_slist_free(gpaths);
 221     }
 222     else
 223     {
 224         paths.Add(m_fileName);
 225     }
 226 }
 227
 228 void wxFileDialog::SetMessage(const wxString& message)
 229 {
 230     m_message = message;
 231     SetTitle(message);
 232 }
 233
 234 void wxFileDialog::SetDirectory(const wxString& dir)
 235 {
 236     wxFileName fn(dir,m_fileName);
 237     SetPath(fn.GetFullPath());
 238 }
 239
 240 void wxFileDialog::SetFilename(const wxString& name)
 241 {
 242     m_fileName = name;
 243     wxFileName fn(m_dir,name);
 244     SetPath(fn.GetFullPath());
 245 }
 246
 247 void wxFileDialog::SetWildcard(const wxString& wildCard)
 248 {
 249     m_wildCard = wildCard;
 250
 251     GtkFileChooser* chooser = GTK_FILE_CHOOSER(m_widget);
 252
 253     // empty current filter list:
 254     GSList* ifilters = gtk_file_chooser_list_filters(chooser);
 255     GSList* filters = ifilters;
 256     while (ifilters)
 257     {
 258         gtk_file_chooser_remove_filter(chooser,GTK_FILE_FILTER(ifilters->data));
 259         ifilters = ifilters->next;
 260     }
 261     g_slist_free(filters);
 262
 263     // parse filters
 264     wxArrayString wildDescriptions, wildFilters;
 265     if (!wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters))
 266     {
 267         wxFAIL_MSG( wxT("Wrong file type description") );
 268     }
 269     else
 270     {
 271         // add parsed to GtkChooser
 272         for (size_t n = 0; n < wildFilters.GetCount(); n++)
 273         {
 274             GtkFileFilter* filter = gtk_file_filter_new();
 275             gtk_file_filter_set_name(filter,wxGTK_CONV(wildDescriptions[n]));
 276             wxString after = wildFilters[n];
 277             do
 278             {
 279                 wxString ext = after.BeforeFirst(wxT(';'));
 280                 gtk_file_filter_add_pattern(filter,wxGTK_CONV(ext));
 281                 if (after.Find(wxT(';')) == wxNOT_FOUND)
 282                     break;
 283                 after = after.AfterLast(wxT(';'));
 284             }
 285             while (!after.empty());
 286
 287             gtk_file_chooser_add_filter(chooser, filter);
 288         }
 289     }
 290 }
 291
 292 void wxFileDialog::SetFilterIndex(int filterIndex)
 293 {
 294     m_filterIndex = filterIndex;
 295
 296     GtkFileChooser *chooser = GTK_FILE_CHOOSER(m_widget);
 297     GSList *fnode = gtk_file_chooser_list_filters(chooser);
 298     GSList *filters = fnode;
 299     int i = 0;
 300     while (fnode)
 301     {
 302         if (i == filterIndex)
 303         {
 304             gtk_file_chooser_set_filter(chooser, GTK_FILE_FILTER(fnode->data));
 305             m_filterIndex = i;
 306             break;
 307         }
 308         i++;
 309         fnode = fnode->next;
 310     }
 311     g_slist_free(filters);
 312 }
 313
 314 void wxFileDialog::UpdateFromDialog()
 315 {
 316     // update filterIndex
 317     GSList *fnode = gtk_file_chooser_list_filters(GTK_FILE_CHOOSER(m_widget));
 318     GSList *filters = fnode;
 319     GtkFileFilter *current =
 320         gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(m_widget));
 321
 322     int i = 0;
 323     m_filterIndex = 0;
 324     while (fnode)
 325     {
 326         if (fnode->data == (gpointer)current)
 327         {
 328             m_filterIndex = i;
 329             break;
 330         }
 331         i++;
 332         fnode = fnode->next;
 333     }
 334     g_slist_free(filters);
 335 }
 336
 337 void wxFileDialog::UpdateDialog()
 338 {
 339
 340     if (wxDirExists(m_path))
 341     {
 342         gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(m_widget),
 343                                             wxGTK_CONV(m_path));
 344     }
 345     else
 346     {
 347         gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
 348                                       wxGTK_CONV(m_path));
 349
 350         // pre-fill the filename, too:
 351         if (GetWindowStyle() & wxSAVE)
 352         {
 353             gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
 354                                               wxGTK_CONV(m_fileName));
 355         }
 356     }
 357 }
 358
 359 void wxFileDialog::DoSetPath(const wxString& path)
 360 {
 361     if (!path.empty())
 362     {
 363         wxFileName fn(path);
 364         fn.MakeAbsolute();
 365         m_path = fn.GetFullPath();
 366
 367         wxString ext;
 368         wxSplitPath(path, &m_dir, &m_fileName, &ext);
 369         if (!ext.empty())
 370         {
 371             m_fileName += wxT(".");
 372             m_fileName += ext;
 373         }
 374     }
 375     else
 376     {
 377         m_path = path;
 378     }
 379 }
 380
 381 #endif // wxUSE_FILEDLG && defined(__WXGTK24__)