Pileus Git - ~andy/gtk/blob - tests/testfilechooser.c

   1 #include <config.h>
   2
   3 #include <string.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <stdlib.h>
   7 #include <time.h>
   8 #ifdef HAVE_UNISTD_H
   9 #include <unistd.h>
  10 #endif
  11 #include <gtk/gtk.h>
  12
  13 #ifdef G_OS_WIN32
  14 #  include <io.h>
  15 #  define localtime_r(t,b) *(b) = *localtime (t)
  16 #  ifndef S_ISREG
  17 #    define S_ISREG(m) ((m) & _S_IFREG)
  18 #  endif
  19 #endif
  20
  21 #include "prop-editor.h"
  22
  23 static GtkWidget *preview_label;
  24 static GtkWidget *preview_image;
  25 static GtkFileChooserAction action;
  26
  27 static void
  28 print_current_folder (GtkFileChooser *chooser)
  29 {
  30   gchar *uri;
  31
  32   uri = gtk_file_chooser_get_current_folder_uri (chooser);
  33   g_print ("Current folder changed :\n  %s\n", uri ? uri : "(null)");
  34   g_free (uri);
  35 }
  36
  37 static void
  38 print_selected (GtkFileChooser *chooser)
  39 {
  40   GSList *uris = gtk_file_chooser_get_uris (chooser);
  41   GSList *tmp_list;
  42
  43   g_print ("Selection changed :\n");
  44   for (tmp_list = uris; tmp_list; tmp_list = tmp_list->next)
  45     {
  46       gchar *uri = tmp_list->data;
  47       g_print ("  %s\n", uri);
  48       g_free (uri);
  49     }
  50   g_print ("\n");
  51   g_slist_free (uris);
  52 }
  53
  54 static void
  55 response_cb (GtkDialog *dialog,
  56              gint       response_id)
  57 {
  58   if (response_id == GTK_RESPONSE_OK)
  59     {
  60       GSList *list;
  61
  62       list = gtk_file_chooser_get_uris (GTK_FILE_CHOOSER (dialog));
  63
  64       if (list)
  65         {
  66           GSList *l;
  67
  68           g_print ("Selected files:\n");
  69
  70           for (l = list; l; l = l->next)
  71             {
  72               g_print ("%s\n", (char *) l->data);
  73               g_free (l->data);
  74             }
  75
  76           g_slist_free (list);
  77         }
  78       else
  79         g_print ("No selected files\n");
  80     }
  81   else
  82     g_print ("Dialog was closed\n");
  83
  84   gtk_main_quit ();
  85 }
  86
  87 static gboolean
  88 no_backup_files_filter (const GtkFileFilterInfo *filter_info,
  89                         gpointer                 data)
  90 {
  91   gsize len = filter_info->display_name ? strlen (filter_info->display_name) : 0;
  92   if (len > 0 && filter_info->display_name[len - 1] == '~')
  93     return 0;
  94   else
  95     return 1;
  96 }
  97
  98 static char *
  99 format_time (time_t t)
 100 {
 101   gchar buf[128];
 102   struct tm tm_buf;
 103   time_t now = time (NULL);
 104   const char *format;
 105
 106   if (abs (now - t) < 24*60*60)
 107     format = "%X";
 108   else
 109     format = "%x";
 110
 111   localtime_r (&t, &tm_buf);
 112   if (strftime (buf, sizeof (buf), format, &tm_buf) == 0)
 113     return g_strdup ("<unknown>");
 114   else
 115     return g_strdup (buf);
 116 }
 117
 118 static char *
 119 format_size (gint64 size)
 120 {
 121   if (size < (gint64)1024)
 122     return g_strdup_printf ("%d bytes", (gint)size);
 123   else if (size < (gint64)1024*1024)
 124     return g_strdup_printf ("%.1f K", size / (1024.));
 125   else if (size < (gint64)1024*1024*1024)
 126     return g_strdup_printf ("%.1f M", size / (1024.*1024.));
 127   else
 128     return g_strdup_printf ("%.1f G", size / (1024.*1024.*1024.));
 129 }
 130
 131 #include <stdio.h>
 132 #include <errno.h>
 133 #define _(s) (s)
 134
 135 static void
 136 size_prepared_cb (GdkPixbufLoader *loader,
 137                   int              width,
 138                   int              height,
 139                   int             *data)
 140 {
 141         int des_width = data[0];
 142         int des_height = data[1];
 143
 144         if (des_height >= height && des_width >= width) {
 145                 /* Nothing */
 146         } else if ((double)height * des_width > (double)width * des_height) {
 147                 width = 0.5 + (double)width * des_height / (double)height;
 148                 height = des_height;
 149         } else {
 150                 height = 0.5 + (double)height * des_width / (double)width;
 151                 width = des_width;
 152         }
 153
 154         gdk_pixbuf_loader_set_size (loader, width, height);
 155 }
 156
 157 GdkPixbuf *
 158 my_new_from_file_at_size (const char *filename,
 159                           int         width,
 160                           int         height,
 161                           GError    **error)
 162 {
 163         GdkPixbufLoader *loader;
 164         GdkPixbuf       *pixbuf;
 165         int              info[2];
 166         struct stat st;
 167
 168         guchar buffer [4096];
 169         int length;
 170         FILE *f;
 171
 172         g_return_val_if_fail (filename != NULL, NULL);
 173         g_return_val_if_fail (width > 0 && height > 0, NULL);
 174
 175         if (stat (filename, &st) != 0) {
 176                 g_set_error (error,
 177                              G_FILE_ERROR,
 178                              g_file_error_from_errno (errno),
 179                              _("Could not get information for file '%s': %s"),
 180                              filename, g_strerror (errno));
 181                 return NULL;
 182         }
 183
 184         if (!S_ISREG (st.st_mode))
 185                 return NULL;
 186
 187         f = fopen (filename, "rb");
 188         if (!f) {
 189                 g_set_error (error,
 190                              G_FILE_ERROR,
 191                              g_file_error_from_errno (errno),
 192                              _("Failed to open file '%s': %s"),
 193                              filename, g_strerror (errno));
 194                 return NULL;
 195         }
 196
 197         loader = gdk_pixbuf_loader_new ();
 198 #ifdef DONT_PRESERVE_ASPECT
 199         gdk_pixbuf_loader_set_size (loader, width, height);
 200 #else
 201         info[0] = width;
 202         info[1] = height;
 203         g_signal_connect (loader, "size-prepared", G_CALLBACK (size_prepared_cb), info);
 204 #endif
 205
 206         while (!feof (f)) {
 207                 length = fread (buffer, 1, sizeof (buffer), f);
 208                 if (length > 0)
 209                         if (!gdk_pixbuf_loader_write (loader, buffer, length, error)) {
 210                                 gdk_pixbuf_loader_close (loader, NULL);
 211                                 fclose (f);
 212                                 g_object_unref (G_OBJECT (loader));
 213                                 return NULL;
 214                         }
 215         }
 216
 217         fclose (f);
 218
 219         g_assert (*error == NULL);
 220         if (!gdk_pixbuf_loader_close (loader, error)) {
 221                 g_object_unref (G_OBJECT (loader));
 222                 return NULL;
 223         }
 224
 225         pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
 226
 227         if (!pixbuf) {
 228                 g_object_unref (G_OBJECT (loader));
 229
 230                 /* did the loader set an error? */
 231                 if (*error != NULL)
 232                         return NULL;
 233
 234                 g_set_error (error,
 235                              GDK_PIXBUF_ERROR,
 236                              GDK_PIXBUF_ERROR_FAILED,
 237                              _("Failed to load image '%s': reason not known, probably a corrupt image file"),
 238                              filename);
 239                 return NULL;
 240         }
 241
 242         g_object_ref (pixbuf);
 243
 244         g_object_unref (G_OBJECT (loader));
 245
 246         return pixbuf;
 247 }
 248
 249 static void
 250 update_preview_cb (GtkFileChooser *chooser)
 251 {
 252   gchar *filename = gtk_file_chooser_get_preview_filename (chooser);
 253   gboolean have_preview = FALSE;
 254
 255   if (filename)
 256     {
 257       GdkPixbuf *pixbuf;
 258       GError *error = NULL;
 259
 260       pixbuf = my_new_from_file_at_size (filename, 128, 128, &error);
 261       if (pixbuf)
 262         {
 263           gtk_image_set_from_pixbuf (GTK_IMAGE (preview_image), pixbuf);
 264           g_object_unref (pixbuf);
 265           gtk_widget_show (preview_image);
 266           gtk_widget_hide (preview_label);
 267           have_preview = TRUE;
 268         }
 269       else
 270         {
 271           struct stat buf;
 272           if (stat (filename, &buf) == 0)
 273             {
 274               gchar *preview_text;
 275               gchar *size_str;
 276               gchar *modified_time;
 277
 278               size_str = format_size (buf.st_size);
 279               modified_time = format_time (buf.st_mtime);
 280
 281               preview_text = g_strdup_printf ("<i>Modified:</i>\t%s\n"
 282                                               "<i>Size:</i>\t%s\n",
 283                                               modified_time,
 284                                               size_str);
 285               gtk_label_set_markup (GTK_LABEL (preview_label), preview_text);
 286               g_free (modified_time);
 287               g_free (size_str);
 288               g_free (preview_text);
 289
 290               gtk_widget_hide (preview_image);
 291               gtk_widget_show (preview_label);
 292               have_preview = TRUE;
 293             }
 294         }
 295
 296       g_free (filename);
 297
 298       if (error)
 299         g_error_free (error);
 300     }
 301
 302   gtk_file_chooser_set_preview_widget_active (chooser, have_preview);
 303 }
 304
 305 static void
 306 set_current_folder (GtkFileChooser *chooser,
 307                     const char     *name)
 308 {
 309   if (!gtk_file_chooser_set_current_folder (chooser, name))
 310     {
 311       GtkWidget *dialog;
 312
 313       dialog = gtk_message_dialog_new (GTK_WINDOW (chooser),
 314                                        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 315                                        GTK_MESSAGE_ERROR,
 316                                        GTK_BUTTONS_CLOSE,
 317                                        "Could not set the folder to %s",
 318                                        name);
 319       gtk_dialog_run (GTK_DIALOG (dialog));
 320       gtk_widget_destroy (dialog);
 321     }
 322 }
 323
 324 static void
 325 set_folder_nonexistent_cb (GtkButton      *button,
 326                            GtkFileChooser *chooser)
 327 {
 328   set_current_folder (chooser, "/nonexistent");
 329 }
 330
 331 static void
 332 set_folder_existing_nonexistent_cb (GtkButton      *button,
 333                                     GtkFileChooser *chooser)
 334 {
 335   set_current_folder (chooser, "/usr/nonexistent");
 336 }
 337
 338 static void
 339 set_filename (GtkFileChooser *chooser,
 340               const char     *name)
 341 {
 342   if (!gtk_file_chooser_set_filename (chooser, name))
 343     {
 344       GtkWidget *dialog;
 345
 346       dialog = gtk_message_dialog_new (GTK_WINDOW (chooser),
 347                                        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 348                                        GTK_MESSAGE_ERROR,
 349                                        GTK_BUTTONS_CLOSE,
 350                                        "Could not select %s",
 351                                        name);
 352       gtk_dialog_run (GTK_DIALOG (dialog));
 353       gtk_widget_destroy (dialog);
 354     }
 355 }
 356
 357 static void
 358 set_filename_nonexistent_cb (GtkButton      *button,
 359                              GtkFileChooser *chooser)
 360 {
 361   set_filename (chooser, "/nonexistent");
 362 }
 363
 364 static void
 365 set_filename_existing_nonexistent_cb (GtkButton      *button,
 366                                       GtkFileChooser *chooser)
 367 {
 368   set_filename (chooser, "/usr/nonexistent");
 369 }
 370
 371 static void
 372 kill_dependent (GtkWindow *win, GtkObject *dep)
 373 {
 374   gtk_object_destroy (dep);
 375   g_object_unref (dep);
 376 }
 377
 378 int
 379 main (int argc, char **argv)
 380 {
 381   GtkWidget *control_window;
 382   GtkWidget *vbbox;
 383   GtkWidget *button;
 384   GtkWidget *dialog;
 385   GtkWidget *prop_editor;
 386   GtkWidget *extra;
 387   GtkFileFilter *filter;
 388   GtkWidget *preview_vbox;
 389   int i;
 390   gboolean multiple = FALSE;
 391
 392   gtk_init (&argc, &argv);
 393
 394   action = GTK_FILE_CHOOSER_ACTION_OPEN;
 395
 396   /* lame-o arg parsing */
 397   for (i = 1; i < argc; i++)
 398     {
 399       if (! strcmp ("--action=open", argv[i]))
 400         action = GTK_FILE_CHOOSER_ACTION_OPEN;
 401       else if (! strcmp ("--action=save", argv[i]))
 402         action = GTK_FILE_CHOOSER_ACTION_SAVE;
 403       else if (! strcmp ("--action=select_folder", argv[i]))
 404         action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
 405       else if (! strcmp ("--action=create_folder", argv[i]))
 406         action = GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER;
 407       else if (! strcmp ("--multiple", argv[i]))
 408         multiple = TRUE;
 409     }
 410
 411   dialog = g_object_new (GTK_TYPE_FILE_CHOOSER_DIALOG,
 412                          "action", action,
 413                          "file-system-backend", "gtk+",
 414                          "select-multiple", multiple,
 415                          NULL);
 416   switch (action)
 417     {
 418     case GTK_FILE_CHOOSER_ACTION_OPEN:
 419     case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
 420       gtk_window_set_title (GTK_WINDOW (dialog), "Select a file");
 421       gtk_dialog_add_buttons (GTK_DIALOG (dialog),
 422                               GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 423                               GTK_STOCK_OPEN, GTK_RESPONSE_OK,
 424                               NULL);
 425       break;
 426     case GTK_FILE_CHOOSER_ACTION_SAVE:
 427     case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER:
 428       gtk_window_set_title (GTK_WINDOW (dialog), "Save a file");
 429       gtk_dialog_add_buttons (GTK_DIALOG (dialog),
 430                               GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
 431                               GTK_STOCK_SAVE, GTK_RESPONSE_OK,
 432                               NULL);
 433       break;
 434     }
 435   gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
 436
 437   g_signal_connect (dialog, "selection-changed",
 438                     G_CALLBACK (print_selected), NULL);
 439   g_signal_connect (dialog, "current-folder-changed",
 440                     G_CALLBACK (print_current_folder), NULL);
 441   g_signal_connect (dialog, "response",
 442                     G_CALLBACK (response_cb), NULL);
 443
 444   /* Filters */
 445   filter = gtk_file_filter_new ();
 446   gtk_file_filter_set_name (filter, "All Files");
 447   gtk_file_filter_add_pattern (filter, "*");
 448   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 449
 450   filter = gtk_file_filter_new ();
 451   gtk_file_filter_set_name (filter, "No backup files");
 452   gtk_file_filter_add_custom (filter, GTK_FILE_FILTER_DISPLAY_NAME,
 453                               no_backup_files_filter, NULL, NULL);
 454   gtk_file_filter_add_mime_type (filter, "image/png");
 455   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 456
 457   /* Make this filter the default */
 458   gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (dialog), filter);
 459
 460   filter = gtk_file_filter_new ();
 461   gtk_file_filter_set_name (filter, "PNG and JPEG");
 462   gtk_file_filter_add_mime_type (filter, "image/jpeg");
 463   gtk_file_filter_add_mime_type (filter, "image/png");
 464   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 465
 466   /* Preview widget */
 467   /* THIS IS A TERRIBLE PREVIEW WIDGET, AND SHOULD NOT BE COPIED AT ALL.
 468    */
 469   preview_vbox = gtk_vbox_new (0, FALSE);
 470   /*  gtk_file_chooser_set_preview_widget (GTK_FILE_CHOOSER (dialog), preview_vbox);*/
 471
 472   preview_label = gtk_label_new (NULL);
 473   gtk_box_pack_start (GTK_BOX (preview_vbox), preview_label, TRUE, TRUE, 0);
 474   gtk_misc_set_padding (GTK_MISC (preview_label), 6, 6);
 475
 476   preview_image = gtk_image_new ();
 477   gtk_box_pack_start (GTK_BOX (preview_vbox), preview_image, TRUE, TRUE, 0);
 478   gtk_misc_set_padding (GTK_MISC (preview_image), 6, 6);
 479
 480   update_preview_cb (GTK_FILE_CHOOSER (dialog));
 481   g_signal_connect (dialog, "update-preview",
 482                     G_CALLBACK (update_preview_cb), NULL);
 483
 484   /* Extra widget */
 485
 486   extra = gtk_check_button_new_with_mnemonic ("Lar_t whoever asks about this button");
 487   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (extra), TRUE);
 488   gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER (dialog), extra);
 489
 490   /* Shortcuts */
 491
 492   gtk_file_chooser_add_shortcut_folder_uri (GTK_FILE_CHOOSER (dialog),
 493                                             "file:///usr/share/pixmaps",
 494                                             NULL);
 495
 496   /* show_all() to reveal bugs in composite widget handling */
 497   gtk_widget_show_all (dialog);
 498
 499   /* Extra controls for manipulating the test environment
 500    */
 501   prop_editor = create_prop_editor (G_OBJECT (dialog), GTK_TYPE_FILE_CHOOSER);
 502
 503   control_window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 504
 505   vbbox = gtk_vbutton_box_new ();
 506   gtk_container_add (GTK_CONTAINER (control_window), vbbox);
 507
 508   button = gtk_button_new_with_mnemonic ("_Select all");
 509   gtk_widget_set_sensitive (button, multiple);
 510   gtk_container_add (GTK_CONTAINER (vbbox), button);
 511   g_signal_connect_swapped (button, "clicked",
 512                             G_CALLBACK (gtk_file_chooser_select_all), dialog);
 513
 514   button = gtk_button_new_with_mnemonic ("_Unselect all");
 515   gtk_container_add (GTK_CONTAINER (vbbox), button);
 516   g_signal_connect_swapped (button, "clicked",
 517                             G_CALLBACK (gtk_file_chooser_unselect_all), dialog);
 518
 519   button = gtk_button_new_with_label ("set_current_folder (\"/nonexistent\")");
 520   gtk_container_add (GTK_CONTAINER (vbbox), button);
 521   g_signal_connect (button, "clicked",
 522                     G_CALLBACK (set_folder_nonexistent_cb), dialog);
 523
 524   button = gtk_button_new_with_label ("set_current_folder (\"/usr/nonexistent\"");
 525   gtk_container_add (GTK_CONTAINER (vbbox), button);
 526   g_signal_connect (button, "clicked",
 527                     G_CALLBACK (set_folder_existing_nonexistent_cb), dialog);
 528
 529   button = gtk_button_new_with_label ("set_filename (\"/nonexistent\"");
 530   gtk_container_add (GTK_CONTAINER (vbbox), button);
 531   g_signal_connect (button, "clicked",
 532                     G_CALLBACK (set_filename_nonexistent_cb), dialog);
 533
 534   button = gtk_button_new_with_label ("set_filename (\"/usr/nonexistent\"");
 535   gtk_container_add (GTK_CONTAINER (vbbox), button);
 536   g_signal_connect (button, "clicked",
 537                     G_CALLBACK (set_filename_existing_nonexistent_cb), dialog);
 538
 539   gtk_widget_show_all (control_window);
 540
 541   g_object_ref (control_window);
 542   g_signal_connect (G_OBJECT (dialog), "destroy",
 543                     G_CALLBACK (kill_dependent), control_window);
 544
 545   /* We need to hold a ref until we have destroyed the widgets, just in case
 546    * someone else destroys them.  We explicitly destroy windows to catch leaks.
 547    */
 548   g_object_ref (dialog);
 549   gtk_main ();
 550   gtk_widget_destroy (dialog);
 551   g_object_unref (dialog);
 552
 553   return 0;
 554 }