src/img-view.c

   1 /*
   2  * GQview
   3  * (C) 2004 John Ellis
   4  *
   5  * Author: John Ellis
   6  *
   7  * This software is released under the GNU General Public License (GNU GPL).
   8  * Please read the included file COPYING for more information.
   9  * This software comes with no warranty of any kind, use at your own risk!
  10  */
  11
  12
  13 #include "gqview.h"
  14 #include "img-view.h"
  15
  16 #include "collect.h"
  17 #include "collect-io.h"
  18 #include "dnd.h"
  19 #include "editors.h"
  20 #include "filelist.h"
  21 #include "fullscreen.h"
  22 #include "image.h"
  23 #include "image-overlay.h"
  24 #include "info.h"
  25 #include "menu.h"
  26 #include "pixbuf-renderer.h"
  27 #include "slideshow.h"
  28 #include "utilops.h"
  29 #include "ui_bookmark.h"
  30 #include "ui_fileops.h"
  31 #include "ui_menu.h"
  32
  33 #include <gdk/gdkkeysyms.h> /* for keyboard values */
  34
  35 #include "icons/view.xpm"
  36
  37
  38 typedef struct _ViewWindow ViewWindow;
  39 struct _ViewWindow
  40 {
  41         GtkWidget *window;
  42         ImageWindow *imd;
  43         FullScreenData *fs;
  44         SlideShowData *ss;
  45
  46         GList *list;
  47         GList *list_pointer;
  48
  49         gint overlay_id;
  50 };
  51
  52
  53 static GList *view_window_list = NULL;
  54
  55
  56 static GtkWidget *view_popup_menu(ViewWindow *vw);
  57 static void view_fullscreen_toggle(ViewWindow *vw, gint force_off);
  58 static void view_overlay_toggle(ViewWindow *vw);
  59
  60 static void view_slideshow_next(ViewWindow *vw);
  61 static void view_slideshow_prev(ViewWindow *vw);
  62 static void view_slideshow_start(ViewWindow *vw);
  63 static void view_slideshow_stop(ViewWindow *vw);
  64
  65 static void view_window_close(ViewWindow *vw);
  66
  67 static void view_window_dnd_init(ViewWindow *vw);
  68
  69
  70 /*
  71  *-----------------------------------------------------------------------------
  72  * misc
  73  *-----------------------------------------------------------------------------
  74  */
  75
  76 static ImageWindow *view_window_active_image(ViewWindow *vw)
  77 {
  78         if (vw->fs) return vw->fs->imd;
  79
  80         return vw->imd;
  81 }
  82
  83 static void view_window_set_list(ViewWindow *vw, GList *list)
  84 {
  85
  86         path_list_free(vw->list);
  87         vw->list = NULL;
  88         vw->list_pointer = NULL;
  89
  90         vw->list = path_list_copy(list);
  91 }
  92
  93 static gint view_window_contains_collection(ViewWindow *vw)
  94 {
  95         CollectionData *cd;
  96         CollectInfo *info;
  97
  98         cd = image_get_collection(view_window_active_image(vw), &info);
  99
 100         return (cd && info);
 101 }
 102
 103 static void view_collection_step(ViewWindow *vw, gint next)
 104 {
 105         ImageWindow *imd = view_window_active_image(vw);
 106         CollectionData *cd;
 107         CollectInfo *info;
 108         CollectInfo *read_ahead_info = NULL;
 109
 110         cd = image_get_collection(imd, &info);
 111
 112         if (!cd || !info) return;
 113
 114         if (next)
 115                 {
 116                 info = collection_next_by_info(cd, info);
 117                 if (enable_read_ahead)
 118                         {
 119                         read_ahead_info = collection_next_by_info(cd, info);
 120                         if (!read_ahead_info) read_ahead_info = collection_prev_by_info(cd, info);
 121                         }
 122                 }
 123         else
 124                 {
 125                 info = collection_prev_by_info(cd, info);
 126                 if (enable_read_ahead)
 127                         {
 128                         read_ahead_info = collection_prev_by_info(cd, info);
 129                         if (!read_ahead_info) read_ahead_info = collection_next_by_info(cd, info);
 130                         }
 131                 }
 132
 133         if (info)
 134                 {
 135                 image_change_from_collection(imd, cd, info, image_zoom_get_default(imd, zoom_mode));
 136
 137                 if (read_ahead_info) image_prebuffer_set(imd, read_ahead_info->path);
 138                 }
 139
 140 }
 141
 142 static void view_collection_step_to_end(ViewWindow *vw, gint last)
 143 {
 144         ImageWindow *imd = view_window_active_image(vw);
 145         CollectionData *cd;
 146         CollectInfo *info;
 147         CollectInfo *read_ahead_info = NULL;
 148
 149         cd = image_get_collection(imd, &info);
 150
 151         if (!cd || !info) return;
 152
 153         if (last)
 154                 {
 155                 info = collection_get_last(cd);
 156                 if (enable_read_ahead) read_ahead_info = collection_prev_by_info(cd, info);
 157                 }
 158         else
 159                 {
 160                 info = collection_get_first(cd);
 161                 if (enable_read_ahead) read_ahead_info = collection_next_by_info(cd, info);
 162                 }
 163
 164         if (info)
 165                 {
 166                 image_change_from_collection(imd, cd, info, image_zoom_get_default(imd, zoom_mode));
 167                 if (read_ahead_info) image_prebuffer_set(imd, read_ahead_info->path);
 168                 }
 169 }
 170
 171 static void view_list_step(ViewWindow *vw, gint next)
 172 {
 173         ImageWindow *imd = view_window_active_image(vw);
 174         const gchar *path;
 175         GList *work;
 176         GList *work_ahead;
 177
 178         if (!vw->list) return;
 179
 180         path = image_get_path(imd);
 181         if (!path) return;
 182
 183         if (g_list_position(vw->list, vw->list_pointer) >= 0)
 184                 {
 185                 work = vw->list_pointer;
 186                 }
 187         else
 188                 {
 189                 gint found = FALSE;
 190
 191                 work = vw->list;
 192                 while (work && !found)
 193                         {
 194                         gchar *temp;
 195
 196                         temp = work->data;
 197
 198                         if (strcmp(path, temp) == 0)
 199                                 {
 200                                 found = TRUE;
 201                                 }
 202                         else
 203                                 {
 204                                 work = work->next;
 205                                 }
 206                         }
 207                 }
 208         if (!work) return;
 209
 210         work_ahead = NULL;
 211         if (next)
 212                 {
 213                 work = work->next;
 214                 if (work) work_ahead = work->next;
 215                 }
 216         else
 217                 {
 218                 work = work->prev;
 219                 if (work) work_ahead = work->prev;
 220                 }
 221         if (!work) return;
 222
 223         vw->list_pointer = work;
 224         path = work->data;
 225         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
 226
 227         if (enable_read_ahead && work_ahead)
 228                 {
 229                 const gchar *next_path = work_ahead->data;
 230                 image_prebuffer_set(imd, next_path);
 231                 }
 232 }
 233
 234 static void view_list_step_to_end(ViewWindow *vw, gint last)
 235 {
 236         ImageWindow *imd = view_window_active_image(vw);
 237         const gchar *path;
 238         GList *work;
 239         GList *work_ahead;
 240
 241         if (!vw->list) return;
 242
 243         if (last)
 244                 {
 245                 work = g_list_last(vw->list);
 246                 work_ahead = work->prev;
 247                 }
 248         else
 249                 {
 250                 work = vw->list;
 251                 work_ahead = work->next;
 252                 }
 253
 254         vw->list_pointer = work;
 255         path = work->data;
 256         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
 257
 258         if (enable_read_ahead && work_ahead)
 259                 {
 260                 const gchar *next_path = work_ahead->data;
 261                 image_prebuffer_set(imd, next_path);
 262                 }
 263 }
 264
 265 static void view_step_next(ViewWindow *vw)
 266 {
 267         if (vw->ss)
 268                 {
 269                 view_slideshow_next(vw);
 270                 }
 271         else if (vw->list)
 272                 {
 273                 view_list_step(vw, TRUE);
 274                 }
 275         else
 276                 {
 277                 view_collection_step(vw, TRUE);
 278                 }
 279 }
 280
 281 static void view_step_prev(ViewWindow *vw)
 282 {
 283         if (vw->ss)
 284                 {
 285                 view_slideshow_prev(vw);
 286                 }
 287         else if (vw->list)
 288                 {
 289                 view_list_step(vw, FALSE);
 290                 }
 291         else
 292                 {
 293                 view_collection_step(vw, FALSE);
 294                 }
 295 }
 296
 297 static void view_step_to_end(ViewWindow *vw, gint last)
 298 {
 299         if (vw->list)
 300                 {
 301                 view_list_step_to_end(vw, last);
 302                 }
 303         else
 304                 {
 305                 view_collection_step_to_end(vw, last);
 306                 }
 307 }
 308
 309 /*
 310  *-----------------------------------------------------------------------------
 311  * view window keyboard
 312  *-----------------------------------------------------------------------------
 313  */
 314
 315 static void view_window_menu_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
 316 {
 317         ViewWindow *vw = data;
 318         ImageWindow *imd;
 319
 320         imd = view_window_active_image(vw);
 321         gdk_window_get_origin(imd->pr->window, x, y);
 322         popup_menu_position_clamp(menu, x, y, 0);
 323 }
 324
 325 static gint view_window_key_press_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
 326 {
 327         ViewWindow *vw = data;
 328         ImageWindow *imd;
 329         gint stop_signal = FALSE;
 330         GtkWidget *menu;
 331         gint x = 0;
 332         gint y = 0;
 333
 334         imd = view_window_active_image(vw);
 335
 336         switch (event->keyval)
 337                 {
 338                 case GDK_Left: case GDK_KP_Left:
 339                         x -= 1;
 340                         stop_signal = TRUE;
 341                         break;
 342                 case GDK_Right: case GDK_KP_Right:
 343                         x += 1;
 344                         stop_signal = TRUE;
 345                         break;
 346                 case GDK_Up: case GDK_KP_Up:
 347                         y -= 1;
 348                         stop_signal = TRUE;
 349                         break;
 350                 case GDK_Down: case GDK_KP_Down:
 351                         y += 1;
 352                         stop_signal = TRUE;
 353                         break;
 354                 }
 355
 356         if ( !(event->state & GDK_CONTROL_MASK) )
 357             switch (event->keyval)
 358                 {
 359                 case GDK_Page_Up: case GDK_KP_Page_Up:
 360                 case GDK_BackSpace:
 361                 case 'B': case 'b':
 362                         view_step_prev(vw);
 363                         stop_signal = TRUE;
 364                         break;
 365                 case GDK_Page_Down: case GDK_KP_Page_Down:
 366                 case GDK_space:
 367                 case 'N': case 'n':
 368                         view_step_next(vw);
 369                         stop_signal = TRUE;
 370                         break;
 371                 case GDK_Home: case GDK_KP_Home:
 372                         view_step_to_end(vw, FALSE);
 373                         stop_signal = TRUE;
 374                         break;
 375                 case GDK_End: case GDK_KP_End:
 376                         view_step_to_end(vw, TRUE);
 377                         stop_signal = TRUE;
 378                         break;
 379                 case '+': case '=': case GDK_KP_Add:
 380                         image_zoom_adjust(imd, get_zoom_increment());
 381                         break;
 382                 case '-': case GDK_KP_Subtract:
 383                         image_zoom_adjust(imd, -get_zoom_increment());
 384                         break;
 385                 case 'X': case 'x': case GDK_KP_Multiply:
 386                         image_zoom_set(imd, 0.0);
 387                         break;
 388                 case 'Z': case 'z': case GDK_KP_Divide: case '1':
 389                         image_zoom_set(imd, 1.0);
 390                         break;
 391                 case '2':
 392                         image_zoom_set(imd, 2.0);
 393                         break;
 394                 case '3':
 395                         image_zoom_set(imd, 3.0);
 396                         break;
 397                 case '4':
 398                         image_zoom_set(imd, 4.0);
 399                         break;
 400                 case '7':
 401                         image_zoom_set(imd, -4.0);
 402                         break;
 403                 case '8':
 404                         image_zoom_set(imd, -3.0);
 405                         break;
 406                 case '9':
 407                         image_zoom_set(imd, -2.0);
 408                         break;
 409                 case 'W': case 'w':
 410                         image_zoom_set_fill_geometry(imd, FALSE);
 411                         break;
 412                 case 'H': case 'h':
 413                         image_zoom_set_fill_geometry(imd, TRUE);
 414                         break;
 415                 case 'R': case 'r':
 416                         image_reload(imd);
 417                         break;
 418                 case 'S': case 's':
 419                         if (vw->ss)
 420                                 view_slideshow_stop(vw);
 421                         else
 422                                 view_slideshow_start(vw);
 423                         stop_signal = TRUE;
 424                         break;
 425                 case 'P': case 'p':
 426                         slideshow_pause_toggle(vw->ss);
 427                         break;
 428                 case 'F': case 'f':
 429                 case 'V': case 'v':
 430                         view_fullscreen_toggle(vw, FALSE);
 431                         stop_signal = TRUE;
 432                         break;
 433                 case 'I': case 'i':
 434                         view_overlay_toggle(vw);
 435                         break;
 436                 case ']':
 437                         image_alter(imd, ALTER_ROTATE_90);
 438                         stop_signal = TRUE;
 439                         break;
 440                 case '[':
 441                         image_alter(imd, ALTER_ROTATE_90_CC);
 442                         stop_signal = TRUE;
 443                         break;
 444                 case GDK_Delete: case GDK_KP_Delete:
 445                         if (enable_delete_key)
 446                                 {
 447                                 file_util_delete(image_get_path(imd), NULL, imd->widget);
 448                                 stop_signal = TRUE;
 449                                 }
 450                         break;
 451                 case GDK_Escape:
 452                         if (vw->fs)
 453                                 {
 454                                 view_fullscreen_toggle(vw, TRUE);
 455                                 }
 456                         else
 457                                 {
 458                                 gtk_widget_destroy(vw->window);
 459                                 }
 460                         stop_signal = TRUE;
 461                         break;
 462                 case GDK_Menu:
 463                 case GDK_F10:
 464                         menu = view_popup_menu(vw);
 465                         gtk_menu_popup(GTK_MENU(menu), NULL, NULL, view_window_menu_pos_cb, vw, 0, GDK_CURRENT_TIME);
 466                         stop_signal = TRUE;
 467                         break;
 468                 }
 469
 470         if (event->state & GDK_CONTROL_MASK)
 471                 {
 472                 gint n = -1;
 473                 switch (event->keyval)
 474                         {
 475                         case '1':
 476                                 n = 0;
 477                                 break;
 478                         case '2':
 479                                 n = 1;
 480                                 break;
 481                         case '3':
 482                                 n = 2;
 483                                 break;
 484                         case '4':
 485                                 n = 3;
 486                                 break;
 487                         case '5':
 488                                 n = 4;
 489                                 break;
 490                         case '6':
 491                                 n = 5;
 492                                 break;
 493                         case '7':
 494                                 n = 6;
 495                                 break;
 496                         case '8':
 497                                 n = 7;
 498                                 break;
 499                         case '9':
 500                                 n = 8;
 501                                 break;
 502                         case '0':
 503                                 n = 9;
 504                                 break;
 505                         case 'C': case 'c':
 506                                 file_util_copy(image_get_path(imd), NULL, NULL, imd->widget);
 507                                 stop_signal = TRUE;
 508                                 break;
 509                         case 'M': case 'm':
 510                                 file_util_move(image_get_path(imd), NULL, NULL, imd->widget);
 511                                 stop_signal = TRUE;
 512                                 break;
 513                         case 'R': case 'r':
 514                                 file_util_rename(image_get_path(imd), NULL, imd->widget);
 515                                 stop_signal = TRUE;
 516                                 break;
 517                         case 'D': case 'd':
 518                                 file_util_delete(image_get_path(imd), NULL, imd->widget);
 519                                 stop_signal = TRUE;
 520                                 break;
 521                         case 'P': case 'p':
 522                                 info_window_new(image_get_path(imd), NULL);
 523                                 stop_signal = TRUE;
 524                                 break;
 525                         case 'W': case 'w':
 526                                 view_window_close(vw);
 527                                 break;
 528                         }
 529                 if (n != -1)
 530                         {
 531                         view_fullscreen_toggle(vw, TRUE);
 532                         start_editor_from_file(n, image_get_path(imd));
 533                         }
 534                 }
 535         else if (event->state & GDK_SHIFT_MASK)
 536                 {
 537                 switch (event->keyval)
 538                         {
 539                         case 'R': case 'r':
 540                                 image_alter(imd, ALTER_ROTATE_180);
 541                                 stop_signal = TRUE;
 542                                 break;
 543                         case 'M': case 'm':
 544                                 image_alter(imd, ALTER_MIRROR);
 545                                 stop_signal = TRUE;
 546                                 break;
 547                         case 'F': case 'f':
 548                                 image_alter(imd, ALTER_FLIP);
 549                                 stop_signal = TRUE;
 550                                 break;
 551                         default:
 552                                 break;
 553                         }
 554                 x *= 3;
 555                 y *= 3;
 556                 }
 557
 558         if (x != 0 || y!= 0)
 559                 {
 560                 keyboard_scroll_calc(&x, &y, event);
 561                 image_scroll(imd, x, y);
 562                 }
 563
 564         return stop_signal;
 565 }
 566
 567 /*
 568  *-----------------------------------------------------------------------------
 569  * view window main routines
 570  *-----------------------------------------------------------------------------
 571  */
 572
 573 static void button_cb(ImageWindow *imd, gint button, guint32 time,
 574                       gdouble x, gdouble y, guint state, gpointer data)
 575 {
 576         ViewWindow *vw = data;
 577         GtkWidget *menu;
 578
 579         switch (button)
 580                 {
 581                 case 1:
 582                         view_step_next(vw);
 583                         break;
 584                 case 2:
 585                         view_step_prev(vw);
 586                         break;
 587                 case 3:
 588                         menu = view_popup_menu(vw);
 589                         gtk_menu_popup (GTK_MENU(menu), NULL, NULL, NULL, NULL, 3, time);
 590                         break;
 591                 default:
 592                         break;
 593                 }
 594 }
 595
 596 static void scroll_cb(ImageWindow *imd, GdkScrollDirection direction, guint32 time,
 597                       gdouble x, gdouble y, guint state, gpointer data)
 598 {
 599         ViewWindow *vw = data;
 600
 601         if (state & GDK_CONTROL_MASK)
 602                 {
 603                 switch (direction)
 604                         {
 605                         case GDK_SCROLL_UP:
 606                                 image_zoom_adjust_at_point(imd, get_zoom_increment(), x, y);
 607                                 break;
 608                         case GDK_SCROLL_DOWN:
 609                                 image_zoom_adjust_at_point(imd, -get_zoom_increment(), x, y);
 610                                 break;
 611                         default:
 612                                 break;
 613                         }
 614                 }
 615         else if ( (state & GDK_SHIFT_MASK) != (mousewheel_scrolls))
 616                 {
 617                 switch (direction)
 618                         {
 619                         case GDK_SCROLL_UP:
 620                                 image_scroll(imd, 0, -MOUSEWHEEL_SCROLL_SIZE);
 621                                 break;
 622                         case GDK_SCROLL_DOWN:
 623                                 image_scroll(imd, 0, MOUSEWHEEL_SCROLL_SIZE);
 624                                 break;
 625                         case GDK_SCROLL_LEFT:
 626                                 image_scroll(imd, -MOUSEWHEEL_SCROLL_SIZE, 0);
 627                                 break;
 628                         case GDK_SCROLL_RIGHT:
 629                                 image_scroll(imd, MOUSEWHEEL_SCROLL_SIZE, 0);
 630                                 break;
 631                         default:
 632                                 break;
 633                         }
 634                 }
 635         else
 636                 {
 637                 switch (direction)
 638                         {
 639                         case GDK_SCROLL_UP:
 640                                 view_step_prev(vw);
 641                                 break;
 642                         case GDK_SCROLL_DOWN:
 643                                 view_step_next(vw);
 644                                 break;
 645                         default:
 646                                 break;
 647                         }
 648                 }
 649 }
 650
 651 static void view_image_set_buttons(ViewWindow *vw, ImageWindow *imd)
 652 {
 653         image_set_button_func(imd, button_cb, vw);
 654         image_set_scroll_func(imd, scroll_cb, vw);
 655 }
 656
 657 static void view_fullscreen_stop_func(FullScreenData *fs, gpointer data)
 658 {
 659         ViewWindow *vw = data;
 660
 661         vw->fs = NULL;
 662
 663         if (vw->ss) vw->ss->imd = vw->imd;
 664 }
 665
 666 static void view_fullscreen_toggle(ViewWindow *vw, gint force_off)
 667 {
 668         if (force_off && !vw->fs) return;
 669
 670         if (vw->fs)
 671                 {
 672                 fullscreen_stop(vw->fs);
 673
 674                 if (vw->overlay_id != -1) vw->overlay_id = image_overlay_info_enable(vw->imd);
 675                 }
 676         else
 677                 {
 678                 vw->fs = fullscreen_start(vw->window, vw->imd, view_fullscreen_stop_func, vw);
 679
 680                 view_image_set_buttons(vw, vw->fs->imd);
 681                 g_signal_connect(G_OBJECT(vw->fs->window), "key_press_event",
 682                                  G_CALLBACK(view_window_key_press_cb), vw);
 683
 684                 if (vw->ss) vw->ss->imd = vw->fs->imd;
 685
 686                 if (vw->overlay_id != -1)
 687                         {
 688                         image_overlay_info_disable(vw->imd, vw->overlay_id);
 689                         vw->overlay_id = image_overlay_info_enable(vw->fs->imd);
 690                         }
 691                 }
 692 }
 693
 694 static void view_overlay_toggle(ViewWindow *vw)
 695 {
 696         ImageWindow *imd;
 697
 698         imd = view_window_active_image(vw);
 699
 700         if (vw->overlay_id == -1)
 701                 {
 702                 vw->overlay_id = image_overlay_info_enable(imd);
 703                 }
 704         else
 705                 {
 706                 image_overlay_info_disable(imd, vw->overlay_id);
 707                 vw->overlay_id = -1;
 708                 }
 709 }
 710
 711 static void view_slideshow_next(ViewWindow *vw)
 712 {
 713         if (vw->ss) slideshow_next(vw->ss);
 714 }
 715
 716 static void view_slideshow_prev(ViewWindow *vw)
 717 {
 718         if (vw->ss) slideshow_prev(vw->ss);
 719 }
 720
 721 static void view_slideshow_stop_func(SlideShowData *fs, gpointer data)
 722 {
 723         ViewWindow *vw = data;
 724
 725         vw->ss = NULL;
 726 }
 727
 728 static void view_slideshow_start(ViewWindow *vw)
 729 {
 730         if (!vw->ss)
 731                 {
 732                 CollectionData *cd;
 733                 CollectInfo *info;
 734
 735                 if (vw->list)
 736                         {
 737                         vw->ss = slideshow_start_from_path_list(view_window_active_image(vw),
 738                                                                 path_list_copy(vw->list),
 739                                                                 view_slideshow_stop_func, vw);
 740                         vw->list_pointer = NULL;
 741                         return;
 742                         }
 743
 744                 cd = image_get_collection(view_window_active_image(vw), &info);
 745                 if (cd && info)
 746                         {
 747                         vw->ss = slideshow_start_from_collection(view_window_active_image(vw), cd,
 748                                                                  view_slideshow_stop_func, vw, info);
 749                         }
 750                 }
 751 }
 752
 753 static void view_slideshow_stop(ViewWindow *vw)
 754 {
 755         if (vw->ss) slideshow_free(vw->ss);
 756 }
 757
 758 static void view_window_close(ViewWindow *vw)
 759 {
 760         view_window_list = g_list_remove(view_window_list, vw);
 761
 762         view_slideshow_stop(vw);
 763         view_fullscreen_toggle(vw, TRUE);
 764         gtk_widget_destroy(vw->window);
 765         path_list_free(vw->list);
 766         g_free(vw);
 767 }
 768
 769 static gint view_window_delete_cb(GtkWidget *w, GdkEventAny *event, gpointer data)
 770 {
 771         ViewWindow *vw = data;
 772
 773         view_window_close(vw);
 774         return TRUE;
 775 }
 776
 777 static ViewWindow *real_view_window_new(const gchar *path, GList *list, CollectionData *cd, CollectInfo *info)
 778 {
 779         ViewWindow *vw;
 780         GtkAllocation req_size;
 781         GdkGeometry geometry;
 782         gint w, h;
 783
 784         if (!path && !list && (!cd || !info)) return NULL;
 785
 786         vw = g_new0(ViewWindow, 1);
 787         vw->fs = NULL;
 788         vw->ss = NULL;
 789         vw->list = NULL;
 790         vw->list_pointer = NULL;
 791
 792         vw->overlay_id = -1;
 793
 794         vw->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 795
 796         geometry.min_width = 8;
 797         geometry.min_height = 8;
 798         gtk_window_set_geometry_hints(GTK_WINDOW(vw->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 799
 800         gtk_window_set_resizable(GTK_WINDOW(vw->window), TRUE);
 801         gtk_window_set_title (GTK_WINDOW(vw->window), "GQview");
 802         gtk_window_set_wmclass(GTK_WINDOW(vw->window), "view", "GQview");
 803         gtk_container_set_border_width(GTK_CONTAINER(vw->window), 0);
 804
 805         window_set_icon(vw->window, (const gchar **)view_xpm, NULL);
 806
 807         vw->imd = image_new(FALSE);
 808
 809         if (black_window_background) image_background_set_black(vw->imd, TRUE);
 810
 811         image_attach_window(vw->imd, vw->window, NULL, "GQview", TRUE);
 812
 813         image_auto_refresh(vw->imd, 0);
 814         image_top_window_set_sync(vw->imd, TRUE);
 815
 816         gtk_container_add(GTK_CONTAINER(vw->window), vw->imd->widget);
 817         gtk_widget_show(vw->imd->widget);
 818
 819         view_window_dnd_init(vw);
 820
 821         view_image_set_buttons(vw, vw->imd);
 822
 823         g_signal_connect(G_OBJECT(vw->window), "delete_event",
 824                          G_CALLBACK(view_window_delete_cb), vw);
 825         g_signal_connect(G_OBJECT(vw->window), "key_press_event",
 826                          G_CALLBACK(view_window_key_press_cb), vw);
 827         if (cd && info)
 828                 {
 829                 image_change_from_collection(vw->imd, cd, info, image_zoom_get_default(NULL, zoom_mode));
 830                 if (enable_read_ahead)
 831                         {
 832                         CollectInfo * r_info = collection_next_by_info(cd, info);
 833                         if (!r_info) r_info = collection_prev_by_info(cd, info);
 834                         if (r_info) image_prebuffer_set(vw->imd, r_info->path);
 835                         }
 836                 }
 837         else if (list)
 838                 {
 839                 view_window_set_list(vw, list);
 840                 vw->list_pointer = vw->list;
 841                 image_change_path(vw->imd, (gchar *)vw->list->data, image_zoom_get_default(NULL, zoom_mode));
 842
 843                 if (enable_read_ahead)
 844                         {
 845                         GList *work = vw->list->next;
 846                         if (work) image_prebuffer_set(vw->imd, (gchar *)work->data);
 847                         }
 848                 }
 849         else
 850                 {
 851                 image_change_path(vw->imd, path, image_zoom_get_default(NULL, zoom_mode));
 852                 }
 853
 854         if (image_zoom_get(vw->imd) == 0.0)
 855                 {
 856                 pixbuf_renderer_get_image_size(PIXBUF_RENDERER(vw->imd->pr), &w, &h);
 857                 }
 858         else
 859                 {
 860                 pixbuf_renderer_get_scaled_size(PIXBUF_RENDERER(vw->imd->pr), &w, &h);
 861                 }
 862         if (limit_window_size)
 863                 {
 864                 gint mw = gdk_screen_width() * max_window_size / 100;
 865                 gint mh = gdk_screen_height() * max_window_size / 100;
 866
 867                 if (w > mw) w = mw;
 868                 if (h > mh) h = mh;
 869                 }
 870
 871         gtk_window_set_default_size(GTK_WINDOW(vw->window), w, h);
 872         req_size.x = req_size.y = 0;
 873         req_size.width = w;
 874         req_size.height = h;
 875         gtk_widget_size_allocate(GTK_WIDGET(vw->window), &req_size);
 876
 877         gtk_widget_set_size_request(vw->imd->pr, w, h);
 878
 879         gtk_widget_show(vw->window);
 880
 881         view_window_list = g_list_append(view_window_list, vw);
 882
 883         return vw;
 884 }
 885
 886 static void view_window_collection_unref_cb(GtkWidget *widget, gpointer data)
 887 {
 888         CollectionData *cd = data;
 889
 890         collection_unref(cd);
 891 }
 892
 893 void view_window_new(const gchar *path)
 894 {
 895         if (file_extension_match(path, ".gqv"))
 896                 {
 897                 ViewWindow *vw;
 898                 CollectionData *cd;
 899                 CollectInfo *info;
 900
 901                 cd = collection_new(path);
 902                 if (collection_load(cd, path, FALSE))
 903                         {
 904                         info = collection_get_first(cd);
 905                         }
 906                 else
 907                         {
 908                         collection_unref(cd);
 909                         cd = NULL;
 910                         info = NULL;
 911                         }
 912                 vw = real_view_window_new(NULL, NULL, cd, info);
 913                 if (vw && cd)
 914                         {
 915                         g_signal_connect(G_OBJECT(vw->window), "destroy",
 916                                          G_CALLBACK(view_window_collection_unref_cb), cd);
 917                         }
 918                 }
 919         else if (isdir(path))
 920                 {
 921                 GList *list = NULL;
 922
 923                 if (path_list(path, &list, NULL))
 924                         {
 925                         list = path_list_sort(list);
 926                         list = path_list_filter(list, FALSE);
 927                         }
 928                 real_view_window_new(NULL, list, NULL, NULL);
 929                 path_list_free(list);
 930                 }
 931         else
 932                 {
 933                 real_view_window_new(path, NULL, NULL, NULL);
 934                 }
 935 }
 936
 937 void view_window_new_from_list(GList *list)
 938 {
 939         real_view_window_new(NULL, list, NULL, NULL);
 940 }
 941
 942 void view_window_new_from_collection(CollectionData *cd, CollectInfo *info)
 943 {
 944         real_view_window_new(NULL, NULL, cd, info);
 945 }
 946
 947 /*
 948  *-----------------------------------------------------------------------------
 949  * public
 950  *-----------------------------------------------------------------------------
 951  */
 952
 953 void view_window_colors_update(void)
 954 {
 955         GList *work;
 956
 957         work = view_window_list;
 958         while (work)
 959                 {
 960                 ViewWindow *vw = work->data;
 961                 work = work->next;
 962
 963                 image_background_set_black(vw->imd, black_window_background);
 964                 }
 965 }
 966
 967 gint view_window_find_image(ImageWindow *imd, gint *index, gint *total)
 968 {
 969         GList *work;
 970
 971         work = view_window_list;
 972         while (work)
 973                 {
 974                 ViewWindow *vw = work->data;
 975                 work = work->next;
 976
 977                 if (vw->imd == imd ||
 978                     (vw->fs && vw->fs->imd == imd))
 979                         {
 980                         if (vw->ss)
 981                                 {
 982                                 gint n;
 983                                 n = g_list_length(vw->ss->list_done);
 984                                 if (index) *index = n - 1;
 985                                 if (total) *total = n + g_list_length(vw->ss->list);
 986                                 }
 987                         else
 988                                 {
 989                                 if (index) *index = g_list_position(vw->list, vw->list_pointer);
 990                                 if (total) *total = g_list_length(vw->list);
 991                                 }
 992                         return TRUE;
 993                         }
 994                 }
 995
 996         return FALSE;
 997 }
 998
 999 /*
1000  *-----------------------------------------------------------------------------
1001  * view window menu routines and callbacks
1002  *-----------------------------------------------------------------------------
1003  */
1004
1005 static void view_new_window_cb(GtkWidget *widget, gpointer data)
1006 {
1007         ViewWindow *vw = data;
1008         CollectionData *cd;
1009         CollectInfo *info;
1010
1011         cd = image_get_collection(vw->imd, &info);
1012
1013         if (cd && info)
1014                 {
1015                 view_window_new_from_collection(cd, info);
1016                 }
1017         else
1018                 {
1019                 view_window_new(image_get_path(vw->imd));
1020                 }
1021 }
1022
1023 static void view_edit_cb(GtkWidget *widget, gpointer data)
1024 {
1025         ViewWindow *vw;
1026         gint n;
1027
1028         vw = submenu_item_get_data(widget);
1029         n = GPOINTER_TO_INT(data);
1030         if (!vw) return;
1031
1032         view_fullscreen_toggle(vw, TRUE);
1033         start_editor_from_file(n, image_get_path(vw->imd));
1034 }
1035
1036 static void view_alter_cb(GtkWidget *widget, gpointer data)
1037 {
1038         ViewWindow *vw;
1039         AlterType type;
1040
1041         vw = submenu_item_get_data(widget);
1042         type = GPOINTER_TO_INT(data);
1043
1044         if (!vw) return;
1045         image_alter(vw->imd, type);
1046 }
1047
1048 static void view_info_cb(GtkWidget *widget, gpointer data)
1049 {
1050         ViewWindow *vw = data;
1051         ImageWindow *imd;
1052
1053         imd = view_window_active_image(vw);
1054         info_window_new(image_get_path(imd), NULL);
1055 }
1056
1057 static void view_wallpaper_cb(GtkWidget *widget, gpointer data)
1058 {
1059         ViewWindow *vw = data;
1060         ImageWindow *imd;
1061
1062         imd = view_window_active_image(vw);
1063         image_to_root_window(imd, (image_zoom_get(imd) == 0.0));
1064 }
1065
1066 static void view_zoom_in_cb(GtkWidget *widget, gpointer data)
1067 {
1068         ViewWindow *vw = data;
1069
1070         image_zoom_adjust(view_window_active_image(vw), get_zoom_increment());
1071 }
1072
1073 static void view_zoom_out_cb(GtkWidget *widget, gpointer data)
1074 {
1075         ViewWindow *vw = data;
1076
1077         image_zoom_adjust(view_window_active_image(vw), -get_zoom_increment());
1078 }
1079
1080 static void view_zoom_1_1_cb(GtkWidget *widget, gpointer data)
1081 {
1082         ViewWindow *vw = data;
1083
1084         image_zoom_set(view_window_active_image(vw), 1.0);
1085 }
1086
1087 static void view_zoom_fit_cb(GtkWidget *widget, gpointer data)
1088 {
1089         ViewWindow *vw = data;
1090
1091         image_zoom_set(view_window_active_image(vw), 0.0);
1092 }
1093
1094 static void view_copy_cb(GtkWidget *widget, gpointer data)
1095 {
1096         ViewWindow *vw = data;
1097         ImageWindow *imd;
1098
1099         imd = view_window_active_image(vw);
1100         file_util_copy(image_get_path(imd), NULL, NULL, imd->widget);
1101 }
1102
1103 static void view_move_cb(GtkWidget *widget, gpointer data)
1104 {
1105         ViewWindow *vw = data;
1106         ImageWindow *imd;
1107
1108         imd = view_window_active_image(vw);
1109         file_util_move(image_get_path(imd), NULL, NULL, imd->widget);
1110 }
1111
1112 static void view_rename_cb(GtkWidget *widget, gpointer data)
1113 {
1114         ViewWindow *vw = data;
1115         ImageWindow *imd;
1116
1117         imd = view_window_active_image(vw);
1118         file_util_rename(image_get_path(imd), NULL, imd->widget);
1119 }
1120
1121 static void view_delete_cb(GtkWidget *widget, gpointer data)
1122 {
1123         ViewWindow *vw = data;
1124         ImageWindow *imd;
1125
1126         imd = view_window_active_image(vw);
1127         file_util_delete(image_get_path(imd), NULL, imd->widget);
1128 }
1129
1130 static void view_fullscreen_cb(GtkWidget *widget, gpointer data)
1131 {
1132         ViewWindow *vw = data;
1133
1134         view_fullscreen_toggle(vw, FALSE);
1135 }
1136
1137 static void view_slideshow_start_cb(GtkWidget *widget, gpointer data)
1138 {
1139         ViewWindow *vw = data;
1140
1141         view_slideshow_start(vw);
1142 }
1143
1144 static void view_slideshow_stop_cb(GtkWidget *widget, gpointer data)
1145 {
1146         ViewWindow *vw = data;
1147
1148         view_slideshow_stop(vw);
1149 }
1150
1151 static void view_slideshow_pause_cb(GtkWidget *widget, gpointer data)
1152 {
1153         ViewWindow *vw = data;
1154
1155         slideshow_pause_toggle(vw->ss);
1156 }
1157
1158 static void view_close_cb(GtkWidget *widget, gpointer data)
1159 {
1160         ViewWindow *vw = data;
1161
1162         view_window_close(vw);
1163 }
1164
1165 static GtkWidget *view_popup_menu(ViewWindow *vw)
1166 {
1167         GtkWidget *menu;
1168         GtkWidget *item;
1169
1170         menu = popup_menu_short_lived();
1171
1172         menu_item_add_stock(menu, _("Zoom _in"), GTK_STOCK_ZOOM_IN, G_CALLBACK(view_zoom_in_cb), vw);
1173         menu_item_add_stock(menu, _("Zoom _out"), GTK_STOCK_ZOOM_OUT, G_CALLBACK(view_zoom_out_cb), vw);
1174         menu_item_add_stock(menu, _("Zoom _1:1"), GTK_STOCK_ZOOM_100, G_CALLBACK(view_zoom_1_1_cb), vw);
1175         menu_item_add_stock(menu, _("Fit image to _window"), GTK_STOCK_ZOOM_FIT, G_CALLBACK(view_zoom_fit_cb), vw);
1176         menu_item_add_divider(menu);
1177
1178         item = submenu_add_edit(menu, NULL, G_CALLBACK(view_edit_cb), vw);
1179         menu_item_add_divider(item);
1180         menu_item_add(item, _("Set as _wallpaper"), G_CALLBACK(view_wallpaper_cb), vw);
1181
1182         submenu_add_alter(menu, G_CALLBACK(view_alter_cb), vw);
1183
1184         menu_item_add_stock(menu, _("_Properties"), GTK_STOCK_PROPERTIES, G_CALLBACK(view_info_cb), vw);
1185
1186         menu_item_add_stock(menu, _("View in _new window"), GTK_STOCK_NEW, G_CALLBACK(view_new_window_cb), vw);
1187
1188         menu_item_add_divider(menu);
1189         menu_item_add_stock(menu, _("_Copy..."), GTK_STOCK_COPY, G_CALLBACK(view_copy_cb), vw);
1190         menu_item_add(menu, _("_Move..."), G_CALLBACK(view_move_cb), vw);
1191         menu_item_add(menu, _("_Rename..."), G_CALLBACK(view_rename_cb), vw);
1192         menu_item_add_stock(menu, _("_Delete..."), GTK_STOCK_DELETE, G_CALLBACK(view_delete_cb), vw);
1193
1194         menu_item_add_divider(menu);
1195
1196         if (vw->ss)
1197                 {
1198                 menu_item_add(menu, _("_Stop slideshow"), G_CALLBACK(view_slideshow_stop_cb), vw);
1199                 if (slideshow_paused(vw->ss))
1200                         {
1201                         item = menu_item_add(menu, _("Continue slides_how"),
1202                                              G_CALLBACK(view_slideshow_pause_cb), vw);
1203                         }
1204                 else
1205                         {
1206                         item = menu_item_add(menu, _("Pause slides_how"),
1207                                              G_CALLBACK(view_slideshow_pause_cb), vw);
1208                         }
1209                 }
1210         else
1211                 {
1212                 item = menu_item_add(menu, _("_Start slideshow"), G_CALLBACK(view_slideshow_start_cb), vw);
1213                 gtk_widget_set_sensitive(item, (vw->list != NULL) || view_window_contains_collection(vw));
1214                 item = menu_item_add(menu, _("Pause slides_how"), G_CALLBACK(view_slideshow_pause_cb), vw);
1215                 gtk_widget_set_sensitive(item, FALSE);
1216                 }
1217
1218         if (vw->fs)
1219                 {
1220                 menu_item_add(menu, _("Exit _full screen"), G_CALLBACK(view_fullscreen_cb), vw);
1221                 }
1222         else
1223                 {
1224                 menu_item_add(menu, _("_Full screen"), G_CALLBACK(view_fullscreen_cb), vw);
1225                 }
1226
1227         menu_item_add_divider(menu);
1228         menu_item_add_stock(menu, _("C_lose window"), GTK_STOCK_CLOSE, G_CALLBACK(view_close_cb), vw);
1229
1230         return menu;
1231 }
1232
1233 /*
1234  *-------------------------------------------------------------------
1235  * dnd confirm dir
1236  *-------------------------------------------------------------------
1237  */
1238
1239 typedef struct {
1240         ViewWindow *vw;
1241         GList *list;
1242 } CViewConfirmD;
1243
1244 static void view_dir_list_cancel(GtkWidget *widget, gpointer data)
1245 {
1246         /* do nothing */
1247 }
1248
1249 static void view_dir_list_do(ViewWindow *vw, GList *list, gint skip, gint recurse)
1250 {
1251         GList *work;
1252
1253         view_window_set_list(vw, NULL);
1254
1255         work = list;
1256         while (work)
1257                 {
1258                 gchar *path = work->data;
1259                 work = work->next;
1260
1261                 if (isdir(path))
1262                         {
1263                         if (!skip)
1264                                 {
1265                                 GList *list = NULL;
1266
1267                                 if (recurse)
1268                                         {
1269                                         list = path_list_recursive(path);
1270                                         }
1271                                 else
1272                                         {
1273                                         path_list(path, &list, NULL);
1274                                         list = path_list_sort(list);
1275                                         list = path_list_filter(list, FALSE);
1276                                         }
1277                                 if (list) vw->list = g_list_concat(vw->list, list);
1278                                 }
1279                         }
1280                 else
1281                         {
1282                         /* FIXME: no filtering here */
1283                         vw->list = g_list_append(vw->list, g_strdup(path));
1284                         }
1285                 }
1286
1287         if (vw->list)
1288                 {
1289                 gchar *path;
1290
1291                 vw->list_pointer = vw->list;
1292                 path = vw->list->data;
1293                 image_change_path(vw->imd, path, image_zoom_get_default(vw->imd, zoom_mode));
1294
1295                 work = vw->list->next;
1296                 if (enable_read_ahead && work)
1297                         {
1298                         path = work->data;
1299                         image_prebuffer_set(vw->imd, path);
1300                         }
1301                 }
1302         else
1303                 {
1304                 image_change_path(vw->imd, NULL, image_zoom_get_default(vw->imd, zoom_mode));
1305                 }
1306 }
1307
1308 static void view_dir_list_add(GtkWidget *widget, gpointer data)
1309 {
1310         CViewConfirmD *d = data;
1311         view_dir_list_do(d->vw, d->list, FALSE, FALSE);
1312 }
1313
1314 static void view_dir_list_recurse(GtkWidget *widget, gpointer data)
1315 {
1316         CViewConfirmD *d = data;
1317         view_dir_list_do(d->vw, d->list, FALSE, TRUE);
1318 }
1319
1320 static void view_dir_list_skip(GtkWidget *widget, gpointer data)
1321 {
1322         CViewConfirmD *d = data;
1323         view_dir_list_do(d->vw, d->list, TRUE, FALSE);
1324 }
1325
1326 static void view_dir_list_destroy(GtkWidget *widget, gpointer data)
1327 {
1328         CViewConfirmD *d = data;
1329         path_list_free(d->list);
1330         g_free(d);
1331 }
1332
1333 static GtkWidget *view_confirm_dir_list(ViewWindow *vw, GList *list)
1334 {
1335         GtkWidget *menu;
1336         CViewConfirmD *d;
1337
1338         d = g_new(CViewConfirmD, 1);
1339         d->vw = vw;
1340         d->list = list;
1341
1342         menu = popup_menu_short_lived();
1343         g_signal_connect(G_OBJECT(menu), "destroy",
1344                          G_CALLBACK(view_dir_list_destroy), d);
1345
1346         menu_item_add_stock(menu, _("Dropped list includes folders."), GTK_STOCK_DND_MULTIPLE, NULL, NULL);
1347         menu_item_add_divider(menu);
1348         menu_item_add_stock(menu, _("_Add contents"), GTK_STOCK_OK, G_CALLBACK(view_dir_list_add), d);
1349         menu_item_add_stock(menu, _("Add contents _recursive"), GTK_STOCK_ADD, G_CALLBACK(view_dir_list_recurse), d);
1350         menu_item_add_stock(menu, _("_Skip folders"), GTK_STOCK_REMOVE, G_CALLBACK(view_dir_list_skip), d);
1351         menu_item_add_divider(menu);
1352         menu_item_add_stock(menu, _("Cancel"), GTK_STOCK_CANCEL, G_CALLBACK(view_dir_list_cancel), d);
1353
1354         return menu;
1355 }
1356
1357 /*
1358  *-----------------------------------------------------------------------------
1359  * image drag and drop routines
1360  *-----------------------------------------------------------------------------
1361  */
1362
1363 static void view_window_get_dnd_data(GtkWidget *widget, GdkDragContext *context,
1364                                      gint x, gint y,
1365                                      GtkSelectionData *selection_data, guint info,
1366                                      guint time, gpointer data)
1367 {
1368         ViewWindow *vw = data;
1369         ImageWindow *imd;
1370
1371         if (gtk_drag_get_source_widget(context) == vw->imd->pr) return;
1372
1373         imd = vw->imd;
1374
1375         if (info == TARGET_URI_LIST || info == TARGET_APP_COLLECTION_MEMBER)
1376                 {
1377                 CollectionData *source;
1378                 GList *list;
1379                 GList *info_list;
1380
1381                 if (info == TARGET_URI_LIST)
1382                         {
1383                         GList *work;
1384
1385                         list = uri_list_from_text(selection_data->data, TRUE);
1386
1387                         work = list;
1388                         while (work)
1389                                 {
1390                                 if (isdir((gchar *)work->data))
1391                                         {
1392                                         GtkWidget *menu;
1393                                         menu = view_confirm_dir_list(vw, list);
1394                                         gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, 0, time);
1395                                         return;
1396                                         }
1397                                 work = work->next;
1398                                 }
1399
1400                         list = path_list_filter(list, FALSE);
1401
1402                         source = NULL;
1403                         info_list = NULL;
1404                         }
1405                 else
1406                         {
1407                         source = collection_from_dnd_data((gchar *)selection_data->data, &list, &info_list);
1408                         }
1409
1410                 if (list)
1411                         {
1412                         gchar *path;
1413
1414                         path = list->data;
1415                         if (isfile(path))
1416                                 {
1417                                 view_slideshow_stop(vw);
1418                                 view_window_set_list(vw, NULL);
1419
1420                                 if (source && info_list)
1421                                         {
1422                                         image_change_from_collection(imd, source, info_list->data, image_zoom_get_default(imd, zoom_mode));
1423                                         }
1424                                 else
1425                                         {
1426                                         if (list->next)
1427                                                 {
1428                                                 vw->list = list;
1429                                                 list = NULL;
1430
1431                                                 vw->list_pointer = vw->list;
1432                                                 }
1433                                         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
1434                                         }
1435                                 }
1436                         }
1437                 path_list_free(list);
1438                 g_list_free(info_list);
1439                 }
1440 }
1441
1442 static void view_window_set_dnd_data(GtkWidget *widget, GdkDragContext *context,
1443                                      GtkSelectionData *selection_data, guint info,
1444                                      guint time, gpointer data)
1445 {
1446         ViewWindow *vw = data;
1447         const gchar *path;
1448
1449         path = image_get_path(vw->imd);
1450
1451         if (path)
1452                 {
1453                 gchar *text = NULL;
1454                 gint len;
1455                 gint plain_text;
1456                 GList *list;
1457
1458                 switch (info)
1459                         {
1460                         case TARGET_URI_LIST:
1461                                 plain_text = FALSE;
1462                                 break;
1463                         case TARGET_TEXT_PLAIN:
1464                         default:
1465                                 plain_text = TRUE;
1466                                 break;
1467                         }
1468                 list = g_list_append(NULL, (gchar *)path);
1469                 text = uri_text_from_list(list, &len, plain_text);
1470                 g_list_free(list);
1471                 if (text)
1472                         {
1473                         gtk_selection_data_set (selection_data, selection_data->target,
1474                                                 8, text, len);
1475                         g_free(text);
1476                         }
1477                 }
1478         else
1479                 {
1480                 gtk_selection_data_set (selection_data, selection_data->target,
1481                                         8, NULL, 0);
1482                 }
1483 }
1484
1485 static void view_window_dnd_init(ViewWindow *vw)
1486 {
1487         ImageWindow *imd;
1488
1489         imd = vw->imd;
1490
1491         gtk_drag_source_set(imd->pr, GDK_BUTTON2_MASK,
1492                             dnd_file_drag_types, dnd_file_drag_types_count,
1493                             GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
1494         g_signal_connect(G_OBJECT(imd->pr), "drag_data_get",
1495                          G_CALLBACK(view_window_set_dnd_data), vw);
1496
1497         gtk_drag_dest_set(imd->pr,
1498                           GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP,
1499                           dnd_file_drop_types, dnd_file_drop_types_count,
1500                           GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
1501         g_signal_connect(G_OBJECT(imd->pr), "drag_data_received",
1502                          G_CALLBACK(view_window_get_dnd_data), vw);
1503 }
1504
1505 /*
1506  *-----------------------------------------------------------------------------
1507  * maintenance (for rename, move, remove)
1508  *-----------------------------------------------------------------------------
1509  */
1510
1511 static void view_real_removed(ViewWindow *vw, const gchar *path, GList *ignore_list)
1512 {
1513         ImageWindow *imd;
1514         const gchar *image_path;
1515
1516         imd = view_window_active_image(vw);
1517         image_path = image_get_path(imd);
1518
1519         if (image_path && strcmp(image_path, path) == 0)
1520                 {
1521                 if (vw->list)
1522                         {
1523                         view_list_step(vw, TRUE);
1524                         if (image_get_path(imd) == image_path)
1525                                 {
1526                                 view_list_step(vw, FALSE);
1527                                 }
1528                         }
1529                 else if (view_window_contains_collection(vw))
1530                         {
1531                         view_collection_step(vw, TRUE);
1532                         if (image_get_path(imd) == image_path)
1533                                 {
1534                                 view_collection_step(vw, FALSE);
1535                                 }
1536                         }
1537                 if (image_get_path(imd) == image_path)
1538                         {
1539                         image_change_path(imd, NULL, image_zoom_get_default(imd, zoom_mode));
1540                         }
1541                 }
1542
1543         if (vw->list)
1544                 {
1545                 GList *work;
1546                 GList *old;
1547
1548                 old = vw->list_pointer;
1549
1550                 work = vw->list;
1551                 while (work)
1552                         {
1553                         gchar *chk_path;
1554                         GList *chk_link;
1555
1556                         chk_path = work->data;
1557                         chk_link = work;
1558                         work = work->next;
1559
1560                         if (strcmp(chk_path, path) == 0)
1561                                 {
1562                                 if (vw->list_pointer == chk_link)
1563                                         {
1564                                         vw->list_pointer = (chk_link->next) ? chk_link->next : chk_link->prev;
1565                                         }
1566                                 vw->list = g_list_remove(vw->list, chk_path);
1567                                 g_free(chk_path);
1568                                 }
1569                         }
1570
1571                 /* handles stepping correctly when same image is in the list more than once */
1572                 if (old && old != vw->list_pointer)
1573                         {
1574                         gchar *path;
1575
1576                         if (vw->list_pointer)
1577                                 {
1578                                 path = vw->list_pointer->data;
1579                                 }
1580                         else
1581                                 {
1582                                 path = NULL;
1583                                 }
1584
1585                         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
1586                         }
1587                 }
1588
1589         if (vw->overlay_id != -1) image_overlay_update(imd, vw->overlay_id);
1590 }
1591
1592 static void view_real_moved(ViewWindow *vw, const gchar *source, const gchar *dest)
1593 {
1594         ImageWindow *imd;
1595         const gchar *image_path;
1596
1597         imd = view_window_active_image(vw);
1598         image_path = image_get_path(imd);
1599
1600         if (image_path && strcmp(image_path, source) == 0)
1601                 {
1602                 image_set_path(imd, dest);
1603                 }
1604
1605         if (vw->list)
1606                 {
1607                 GList *work;
1608                 work = vw->list;
1609                 while (work)
1610                         {
1611                         gchar *chk_path;
1612
1613                         chk_path = work->data;
1614
1615                         if (strcmp(chk_path, source) == 0)
1616                                 {
1617                                 work->data = g_strdup(dest);
1618                                 g_free(chk_path);
1619                                 }
1620
1621                         work = work->next;
1622                         }
1623                 }
1624 }
1625
1626 void view_window_maint_removed(const gchar *path, GList *ignore_list)
1627 {
1628         GList *work = view_window_list;
1629         while (work)
1630                 {
1631                 ViewWindow *vw = work->data;
1632                 work = work->next;
1633
1634                 view_real_removed(vw, path, ignore_list);
1635                 }
1636 }
1637
1638 void view_window_maint_moved(const gchar *source, const gchar *dest)
1639 {
1640         GList *work = view_window_list;
1641         while (work)
1642                 {
1643                 ViewWindow *vw = work->data;
1644                 work = work->next;
1645
1646                 view_real_moved(vw, source, dest);
1647                 }
1648 }
1649