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;
 330         GtkWidget *menu;
 331         gint x = 0;
 332         gint y = 0;
 333
 334         imd = view_window_active_image(vw);
 335
 336         stop_signal = TRUE;
 337         switch (event->keyval)
 338                 {
 339                 case GDK_Left: case GDK_KP_Left:
 340                         x -= 1;
 341                         break;
 342                 case GDK_Right: case GDK_KP_Right:
 343                         x += 1;
 344                         break;
 345                 case GDK_Up: case GDK_KP_Up:
 346                         y -= 1;
 347                         break;
 348                 case GDK_Down: case GDK_KP_Down:
 349                         y += 1;
 350                         break;
 351                 default:
 352                         stop_signal = FALSE;
 353                         break;
 354                 }
 355
 356         if (x != 0 || y!= 0)
 357                 {
 358                 if (event->state & GDK_SHIFT_MASK)
 359                         {
 360                         x *= 3;
 361                         y *= 3;
 362                         }
 363
 364                 keyboard_scroll_calc(&x, &y, event);
 365                 image_scroll(imd, x, y);
 366                 }
 367
 368         if (stop_signal) return stop_signal;
 369
 370         if (event->state & GDK_CONTROL_MASK)
 371                 {
 372                 gint n = -1;
 373
 374                 stop_signal = TRUE;
 375                 switch (event->keyval)
 376                         {
 377                         case '1':
 378                                 n = 0;
 379                                 break;
 380                         case '2':
 381                                 n = 1;
 382                                 break;
 383                         case '3':
 384                                 n = 2;
 385                                 break;
 386                         case '4':
 387                                 n = 3;
 388                                 break;
 389                         case '5':
 390                                 n = 4;
 391                                 break;
 392                         case '6':
 393                                 n = 5;
 394                                 break;
 395                         case '7':
 396                                 n = 6;
 397                                 break;
 398                         case '8':
 399                                 n = 7;
 400                                 break;
 401                         case '9':
 402                                 n = 8;
 403                                 break;
 404                         case '0':
 405                                 n = 9;
 406                                 break;
 407                         case 'C': case 'c':
 408                                 file_util_copy(image_get_path(imd), NULL, NULL, imd->widget);
 409                                 break;
 410                         case 'M': case 'm':
 411                                 file_util_move(image_get_path(imd), NULL, NULL, imd->widget);
 412                                 break;
 413                         case 'R': case 'r':
 414                                 file_util_rename(image_get_path(imd), NULL, imd->widget);
 415                                 break;
 416                         case 'D': case 'd':
 417                                 file_util_delete(image_get_path(imd), NULL, imd->widget);
 418                                 break;
 419                         case 'P': case 'p':
 420                                 info_window_new(image_get_path(imd), NULL);
 421                                 break;
 422                         case 'W': case 'w':
 423                                 view_window_close(vw);
 424                                 break;
 425                         default:
 426                                 stop_signal = FALSE;
 427                                 break;
 428                         }
 429                 if (n != -1)
 430                         {
 431                         if (!editor_window_flag_set(n))
 432                                 {
 433                                 view_fullscreen_toggle(vw, TRUE);
 434                                 }
 435                         imd = view_window_active_image(vw);
 436                         start_editor_from_file(n, image_get_path(imd));
 437                         }
 438                 }
 439         else if (event->state & GDK_SHIFT_MASK)
 440                 {
 441                 stop_signal = TRUE;
 442                 switch (event->keyval)
 443                         {
 444                         case 'R': case 'r':
 445                                 image_alter(imd, ALTER_ROTATE_180);
 446                                 break;
 447                         case 'M': case 'm':
 448                                 image_alter(imd, ALTER_MIRROR);
 449                                 break;
 450                         case 'F': case 'f':
 451                                 image_alter(imd, ALTER_FLIP);
 452                                 break;
 453                         case 'G': case 'g':
 454                                 image_alter(imd, ALTER_DESATURATE);
 455                                 break;
 456                         default:
 457                                 stop_signal = FALSE;
 458                                 break;
 459                         }
 460                 }
 461         else
 462                 {
 463                 stop_signal = TRUE;
 464                 switch (event->keyval)
 465                         {
 466                         case GDK_Page_Up: case GDK_KP_Page_Up:
 467                         case GDK_BackSpace:
 468                         case 'B': case 'b':
 469                                 view_step_prev(vw);
 470                                 break;
 471                         case GDK_Page_Down: case GDK_KP_Page_Down:
 472                         case GDK_space:
 473                         case 'N': case 'n':
 474                                 view_step_next(vw);
 475                                 break;
 476                         case GDK_Home: case GDK_KP_Home:
 477                                 view_step_to_end(vw, FALSE);
 478                                 break;
 479                         case GDK_End: case GDK_KP_End:
 480                                 view_step_to_end(vw, TRUE);
 481                                 break;
 482                         case '+': case '=': case GDK_KP_Add:
 483                                 image_zoom_adjust(imd, get_zoom_increment());
 484                                 break;
 485                         case '-': case GDK_KP_Subtract:
 486                                 image_zoom_adjust(imd, -get_zoom_increment());
 487                                 break;
 488                         case 'X': case 'x': case GDK_KP_Multiply:
 489                                 image_zoom_set(imd, 0.0);
 490                                 break;
 491                         case 'Z': case 'z': case GDK_KP_Divide: case '1':
 492                                 image_zoom_set(imd, 1.0);
 493                                 break;
 494                         case '2':
 495                                 image_zoom_set(imd, 2.0);
 496                                 break;
 497                         case '3':
 498                                 image_zoom_set(imd, 3.0);
 499                                 break;
 500                         case '4':
 501                                 image_zoom_set(imd, 4.0);
 502                                 break;
 503                         case '7':
 504                                 image_zoom_set(imd, -4.0);
 505                                 break;
 506                         case '8':
 507                                 image_zoom_set(imd, -3.0);
 508                                 break;
 509                         case '9':
 510                                 image_zoom_set(imd, -2.0);
 511                                 break;
 512                         case 'W': case 'w':
 513                                 image_zoom_set_fill_geometry(imd, FALSE);
 514                                 break;
 515                         case 'H': case 'h':
 516                                 image_zoom_set_fill_geometry(imd, TRUE);
 517                                 break;
 518                         case 'R': case 'r':
 519                                 image_reload(imd);
 520                                 break;
 521                         case 'S': case 's':
 522                                 if (vw->ss)
 523                                         {
 524                                         view_slideshow_stop(vw);
 525                                         }
 526                                 else
 527                                         {
 528                                         view_slideshow_start(vw);
 529                                         }
 530                                 break;
 531                         case 'P': case 'p':
 532                                 slideshow_pause_toggle(vw->ss);
 533                                 break;
 534                         case 'F': case 'f':
 535                         case 'V': case 'v':
 536                         case GDK_F11:
 537                                 view_fullscreen_toggle(vw, FALSE);
 538                                 break;
 539                         case 'I': case 'i':
 540                                 view_overlay_toggle(vw);
 541                                 break;
 542                         case ']':
 543                                 image_alter(imd, ALTER_ROTATE_90);
 544                                 break;
 545                         case '[':
 546                                 image_alter(imd, ALTER_ROTATE_90_CC);
 547                                 break;
 548                         case GDK_Delete: case GDK_KP_Delete:
 549                                 if (enable_delete_key)
 550                                         {
 551                                         file_util_delete(image_get_path(imd), NULL, imd->widget);
 552                                         }
 553                                 break;
 554                         case GDK_Escape:
 555                                 if (vw->fs)
 556                                         {
 557                                         view_fullscreen_toggle(vw, TRUE);
 558                                         }
 559                                 else
 560                                         {
 561                                         gtk_widget_destroy(vw->window);
 562                                         }
 563                                 break;
 564                         case GDK_Menu:
 565                         case GDK_F10:
 566                                 menu = view_popup_menu(vw);
 567                                 gtk_menu_popup(GTK_MENU(menu), NULL, NULL,
 568                                                view_window_menu_pos_cb, vw, 0, GDK_CURRENT_TIME);
 569                                 break;
 570                         default:
 571                                 stop_signal = FALSE;
 572                                 break;
 573                         }
 574                 }
 575
 576         return stop_signal;
 577 }
 578
 579 /*
 580  *-----------------------------------------------------------------------------
 581  * view window main routines
 582  *-----------------------------------------------------------------------------
 583  */
 584
 585 static void button_cb(ImageWindow *imd, gint button, guint32 time,
 586                       gdouble x, gdouble y, guint state, gpointer data)
 587 {
 588         ViewWindow *vw = data;
 589         GtkWidget *menu;
 590
 591         switch (button)
 592                 {
 593                 case 1:
 594                         view_step_next(vw);
 595                         break;
 596                 case 2:
 597                         view_step_prev(vw);
 598                         break;
 599                 case 3:
 600                         menu = view_popup_menu(vw);
 601                         gtk_menu_popup (GTK_MENU(menu), NULL, NULL, NULL, NULL, 3, time);
 602                         break;
 603                 default:
 604                         break;
 605                 }
 606 }
 607
 608 static void scroll_cb(ImageWindow *imd, GdkScrollDirection direction, guint32 time,
 609                       gdouble x, gdouble y, guint state, gpointer data)
 610 {
 611         ViewWindow *vw = data;
 612
 613         if (state & GDK_CONTROL_MASK)
 614                 {
 615                 switch (direction)
 616                         {
 617                         case GDK_SCROLL_UP:
 618                                 image_zoom_adjust_at_point(imd, get_zoom_increment(), x, y);
 619                                 break;
 620                         case GDK_SCROLL_DOWN:
 621                                 image_zoom_adjust_at_point(imd, -get_zoom_increment(), x, y);
 622                                 break;
 623                         default:
 624                                 break;
 625                         }
 626                 }
 627         else if ( (state & GDK_SHIFT_MASK) != (mousewheel_scrolls))
 628                 {
 629                 switch (direction)
 630                         {
 631                         case GDK_SCROLL_UP:
 632                                 image_scroll(imd, 0, -MOUSEWHEEL_SCROLL_SIZE);
 633                                 break;
 634                         case GDK_SCROLL_DOWN:
 635                                 image_scroll(imd, 0, MOUSEWHEEL_SCROLL_SIZE);
 636                                 break;
 637                         case GDK_SCROLL_LEFT:
 638                                 image_scroll(imd, -MOUSEWHEEL_SCROLL_SIZE, 0);
 639                                 break;
 640                         case GDK_SCROLL_RIGHT:
 641                                 image_scroll(imd, MOUSEWHEEL_SCROLL_SIZE, 0);
 642                                 break;
 643                         default:
 644                                 break;
 645                         }
 646                 }
 647         else
 648                 {
 649                 switch (direction)
 650                         {
 651                         case GDK_SCROLL_UP:
 652                                 view_step_prev(vw);
 653                                 break;
 654                         case GDK_SCROLL_DOWN:
 655                                 view_step_next(vw);
 656                                 break;
 657                         default:
 658                                 break;
 659                         }
 660                 }
 661 }
 662
 663 static void view_image_set_buttons(ViewWindow *vw, ImageWindow *imd)
 664 {
 665         image_set_button_func(imd, button_cb, vw);
 666         image_set_scroll_func(imd, scroll_cb, vw);
 667 }
 668
 669 static void view_fullscreen_stop_func(FullScreenData *fs, gpointer data)
 670 {
 671         ViewWindow *vw = data;
 672
 673         vw->fs = NULL;
 674
 675         if (vw->ss) vw->ss->imd = vw->imd;
 676 }
 677
 678 static void view_fullscreen_toggle(ViewWindow *vw, gint force_off)
 679 {
 680         if (force_off && !vw->fs) return;
 681
 682         if (vw->fs)
 683                 {
 684                 fullscreen_stop(vw->fs);
 685
 686                 if (vw->overlay_id != -1) vw->overlay_id = image_overlay_info_enable(vw->imd);
 687                 }
 688         else
 689                 {
 690                 vw->fs = fullscreen_start(vw->window, vw->imd, view_fullscreen_stop_func, vw);
 691
 692                 view_image_set_buttons(vw, vw->fs->imd);
 693                 g_signal_connect(G_OBJECT(vw->fs->window), "key_press_event",
 694                                  G_CALLBACK(view_window_key_press_cb), vw);
 695
 696                 if (vw->ss) vw->ss->imd = vw->fs->imd;
 697
 698                 if (vw->overlay_id != -1)
 699                         {
 700                         image_overlay_info_disable(vw->imd, vw->overlay_id);
 701                         vw->overlay_id = image_overlay_info_enable(vw->fs->imd);
 702                         }
 703                 }
 704 }
 705
 706 static void view_overlay_toggle(ViewWindow *vw)
 707 {
 708         ImageWindow *imd;
 709
 710         imd = view_window_active_image(vw);
 711
 712         if (vw->overlay_id == -1)
 713                 {
 714                 vw->overlay_id = image_overlay_info_enable(imd);
 715                 }
 716         else
 717                 {
 718                 image_overlay_info_disable(imd, vw->overlay_id);
 719                 vw->overlay_id = -1;
 720                 }
 721 }
 722
 723 static void view_slideshow_next(ViewWindow *vw)
 724 {
 725         if (vw->ss) slideshow_next(vw->ss);
 726 }
 727
 728 static void view_slideshow_prev(ViewWindow *vw)
 729 {
 730         if (vw->ss) slideshow_prev(vw->ss);
 731 }
 732
 733 static void view_slideshow_stop_func(SlideShowData *fs, gpointer data)
 734 {
 735         ViewWindow *vw = data;
 736
 737         vw->ss = NULL;
 738 }
 739
 740 static void view_slideshow_start(ViewWindow *vw)
 741 {
 742         if (!vw->ss)
 743                 {
 744                 CollectionData *cd;
 745                 CollectInfo *info;
 746
 747                 if (vw->list)
 748                         {
 749                         vw->ss = slideshow_start_from_path_list(view_window_active_image(vw),
 750                                                                 path_list_copy(vw->list),
 751                                                                 view_slideshow_stop_func, vw);
 752                         vw->list_pointer = NULL;
 753                         return;
 754                         }
 755
 756                 cd = image_get_collection(view_window_active_image(vw), &info);
 757                 if (cd && info)
 758                         {
 759                         vw->ss = slideshow_start_from_collection(view_window_active_image(vw), cd,
 760                                                                  view_slideshow_stop_func, vw, info);
 761                         }
 762                 }
 763 }
 764
 765 static void view_slideshow_stop(ViewWindow *vw)
 766 {
 767         if (vw->ss) slideshow_free(vw->ss);
 768 }
 769
 770 static void view_window_close(ViewWindow *vw)
 771 {
 772         view_window_list = g_list_remove(view_window_list, vw);
 773
 774         view_slideshow_stop(vw);
 775         view_fullscreen_toggle(vw, TRUE);
 776         gtk_widget_destroy(vw->window);
 777         path_list_free(vw->list);
 778         g_free(vw);
 779 }
 780
 781 static gint view_window_delete_cb(GtkWidget *w, GdkEventAny *event, gpointer data)
 782 {
 783         ViewWindow *vw = data;
 784
 785         view_window_close(vw);
 786         return TRUE;
 787 }
 788
 789 static ViewWindow *real_view_window_new(const gchar *path, GList *list, CollectionData *cd, CollectInfo *info)
 790 {
 791         ViewWindow *vw;
 792         GtkAllocation req_size;
 793         GdkGeometry geometry;
 794         gint w, h;
 795
 796         if (!path && !list && (!cd || !info)) return NULL;
 797
 798         vw = g_new0(ViewWindow, 1);
 799         vw->fs = NULL;
 800         vw->ss = NULL;
 801         vw->list = NULL;
 802         vw->list_pointer = NULL;
 803
 804         vw->overlay_id = -1;
 805
 806         vw->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 807
 808         geometry.min_width = 8;
 809         geometry.min_height = 8;
 810         gtk_window_set_geometry_hints(GTK_WINDOW(vw->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 811
 812         gtk_window_set_resizable(GTK_WINDOW(vw->window), TRUE);
 813         gtk_window_set_title (GTK_WINDOW(vw->window), "GQview");
 814         gtk_window_set_wmclass(GTK_WINDOW(vw->window), "view", "GQview");
 815         gtk_container_set_border_width(GTK_CONTAINER(vw->window), 0);
 816
 817         window_set_icon(vw->window, (const gchar **)view_xpm, NULL);
 818
 819         vw->imd = image_new(FALSE);
 820
 821         if (black_window_background) image_background_set_black(vw->imd, TRUE);
 822
 823         image_attach_window(vw->imd, vw->window, NULL, "GQview", TRUE);
 824
 825         image_auto_refresh(vw->imd, 0);
 826         image_top_window_set_sync(vw->imd, TRUE);
 827
 828         gtk_container_add(GTK_CONTAINER(vw->window), vw->imd->widget);
 829         gtk_widget_show(vw->imd->widget);
 830
 831         view_window_dnd_init(vw);
 832
 833         view_image_set_buttons(vw, vw->imd);
 834
 835         g_signal_connect(G_OBJECT(vw->window), "delete_event",
 836                          G_CALLBACK(view_window_delete_cb), vw);
 837         g_signal_connect(G_OBJECT(vw->window), "key_press_event",
 838                          G_CALLBACK(view_window_key_press_cb), vw);
 839         if (cd && info)
 840                 {
 841                 image_change_from_collection(vw->imd, cd, info, image_zoom_get_default(NULL, zoom_mode));
 842                 if (enable_read_ahead)
 843                         {
 844                         CollectInfo * r_info = collection_next_by_info(cd, info);
 845                         if (!r_info) r_info = collection_prev_by_info(cd, info);
 846                         if (r_info) image_prebuffer_set(vw->imd, r_info->path);
 847                         }
 848                 }
 849         else if (list)
 850                 {
 851                 view_window_set_list(vw, list);
 852                 vw->list_pointer = vw->list;
 853                 image_change_path(vw->imd, (gchar *)vw->list->data, image_zoom_get_default(NULL, zoom_mode));
 854
 855                 if (enable_read_ahead)
 856                         {
 857                         GList *work = vw->list->next;
 858                         if (work) image_prebuffer_set(vw->imd, (gchar *)work->data);
 859                         }
 860                 }
 861         else
 862                 {
 863                 image_change_path(vw->imd, path, image_zoom_get_default(NULL, zoom_mode));
 864                 }
 865
 866         if (image_zoom_get(vw->imd) == 0.0)
 867                 {
 868                 pixbuf_renderer_get_image_size(PIXBUF_RENDERER(vw->imd->pr), &w, &h);
 869                 }
 870         else
 871                 {
 872                 pixbuf_renderer_get_scaled_size(PIXBUF_RENDERER(vw->imd->pr), &w, &h);
 873                 }
 874         if (limit_window_size)
 875                 {
 876                 gint mw = gdk_screen_width() * max_window_size / 100;
 877                 gint mh = gdk_screen_height() * max_window_size / 100;
 878
 879                 if (w > mw) w = mw;
 880                 if (h > mh) h = mh;
 881                 }
 882
 883         gtk_window_set_default_size(GTK_WINDOW(vw->window), w, h);
 884         req_size.x = req_size.y = 0;
 885         req_size.width = w;
 886         req_size.height = h;
 887         gtk_widget_size_allocate(GTK_WIDGET(vw->window), &req_size);
 888
 889         gtk_widget_set_size_request(vw->imd->pr, w, h);
 890
 891         gtk_widget_show(vw->window);
 892
 893         view_window_list = g_list_append(view_window_list, vw);
 894
 895         return vw;
 896 }
 897
 898 static void view_window_collection_unref_cb(GtkWidget *widget, gpointer data)
 899 {
 900         CollectionData *cd = data;
 901
 902         collection_unref(cd);
 903 }
 904
 905 void view_window_new(const gchar *path)
 906 {
 907         if (file_extension_match(path, ".gqv"))
 908                 {
 909                 ViewWindow *vw;
 910                 CollectionData *cd;
 911                 CollectInfo *info;
 912
 913                 cd = collection_new(path);
 914                 if (collection_load(cd, path, FALSE))
 915                         {
 916                         info = collection_get_first(cd);
 917                         }
 918                 else
 919                         {
 920                         collection_unref(cd);
 921                         cd = NULL;
 922                         info = NULL;
 923                         }
 924                 vw = real_view_window_new(NULL, NULL, cd, info);
 925                 if (vw && cd)
 926                         {
 927                         g_signal_connect(G_OBJECT(vw->window), "destroy",
 928                                          G_CALLBACK(view_window_collection_unref_cb), cd);
 929                         }
 930                 }
 931         else if (isdir(path))
 932                 {
 933                 GList *list = NULL;
 934
 935                 if (path_list(path, &list, NULL))
 936                         {
 937                         list = path_list_sort(list);
 938                         list = path_list_filter(list, FALSE);
 939                         }
 940                 real_view_window_new(NULL, list, NULL, NULL);
 941                 path_list_free(list);
 942                 }
 943         else
 944                 {
 945                 real_view_window_new(path, NULL, NULL, NULL);
 946                 }
 947 }
 948
 949 void view_window_new_from_list(GList *list)
 950 {
 951         real_view_window_new(NULL, list, NULL, NULL);
 952 }
 953
 954 void view_window_new_from_collection(CollectionData *cd, CollectInfo *info)
 955 {
 956         real_view_window_new(NULL, NULL, cd, info);
 957 }
 958
 959 /*
 960  *-----------------------------------------------------------------------------
 961  * public
 962  *-----------------------------------------------------------------------------
 963  */
 964
 965 void view_window_colors_update(void)
 966 {
 967         GList *work;
 968
 969         work = view_window_list;
 970         while (work)
 971                 {
 972                 ViewWindow *vw = work->data;
 973                 work = work->next;
 974
 975                 image_background_set_black(vw->imd, black_window_background);
 976                 }
 977 }
 978
 979 gint view_window_find_image(ImageWindow *imd, gint *index, gint *total)
 980 {
 981         GList *work;
 982
 983         work = view_window_list;
 984         while (work)
 985                 {
 986                 ViewWindow *vw = work->data;
 987                 work = work->next;
 988
 989                 if (vw->imd == imd ||
 990                     (vw->fs && vw->fs->imd == imd))
 991                         {
 992                         if (vw->ss)
 993                                 {
 994                                 gint n;
 995                                 n = g_list_length(vw->ss->list_done);
 996                                 if (index) *index = n - 1;
 997                                 if (total) *total = n + g_list_length(vw->ss->list);
 998                                 }
 999                         else
1000                                 {
1001                                 if (index) *index = g_list_position(vw->list, vw->list_pointer);
1002                                 if (total) *total = g_list_length(vw->list);
1003                                 }
1004                         return TRUE;
1005                         }
1006                 }
1007
1008         return FALSE;
1009 }
1010
1011 /*
1012  *-----------------------------------------------------------------------------
1013  * view window menu routines and callbacks
1014  *-----------------------------------------------------------------------------
1015  */
1016
1017 static void view_new_window_cb(GtkWidget *widget, gpointer data)
1018 {
1019         ViewWindow *vw = data;
1020         CollectionData *cd;
1021         CollectInfo *info;
1022
1023         cd = image_get_collection(vw->imd, &info);
1024
1025         if (cd && info)
1026                 {
1027                 view_window_new_from_collection(cd, info);
1028                 }
1029         else
1030                 {
1031                 view_window_new(image_get_path(vw->imd));
1032                 }
1033 }
1034
1035 static void view_edit_cb(GtkWidget *widget, gpointer data)
1036 {
1037         ViewWindow *vw;
1038         ImageWindow *imd;
1039         gint n;
1040
1041         vw = submenu_item_get_data(widget);
1042         n = GPOINTER_TO_INT(data);
1043         if (!vw) return;
1044
1045         if (!editor_window_flag_set(n))
1046                 {
1047                 view_fullscreen_toggle(vw, TRUE);
1048                 }
1049
1050         imd = view_window_active_image(vw);
1051         start_editor_from_file(n, image_get_path(imd));
1052 }
1053
1054 static void view_alter_cb(GtkWidget *widget, gpointer data)
1055 {
1056         ViewWindow *vw;
1057         AlterType type;
1058
1059         vw = submenu_item_get_data(widget);
1060         type = GPOINTER_TO_INT(data);
1061
1062         if (!vw) return;
1063         image_alter(vw->imd, type);
1064 }
1065
1066 static void view_info_cb(GtkWidget *widget, gpointer data)
1067 {
1068         ViewWindow *vw = data;
1069         ImageWindow *imd;
1070
1071         imd = view_window_active_image(vw);
1072         info_window_new(image_get_path(imd), NULL);
1073 }
1074
1075 static void view_wallpaper_cb(GtkWidget *widget, gpointer data)
1076 {
1077         ViewWindow *vw = data;
1078         ImageWindow *imd;
1079
1080         imd = view_window_active_image(vw);
1081         image_to_root_window(imd, (image_zoom_get(imd) == 0.0));
1082 }
1083
1084 static void view_zoom_in_cb(GtkWidget *widget, gpointer data)
1085 {
1086         ViewWindow *vw = data;
1087
1088         image_zoom_adjust(view_window_active_image(vw), get_zoom_increment());
1089 }
1090
1091 static void view_zoom_out_cb(GtkWidget *widget, gpointer data)
1092 {
1093         ViewWindow *vw = data;
1094
1095         image_zoom_adjust(view_window_active_image(vw), -get_zoom_increment());
1096 }
1097
1098 static void view_zoom_1_1_cb(GtkWidget *widget, gpointer data)
1099 {
1100         ViewWindow *vw = data;
1101
1102         image_zoom_set(view_window_active_image(vw), 1.0);
1103 }
1104
1105 static void view_zoom_fit_cb(GtkWidget *widget, gpointer data)
1106 {
1107         ViewWindow *vw = data;
1108
1109         image_zoom_set(view_window_active_image(vw), 0.0);
1110 }
1111
1112 static void view_copy_cb(GtkWidget *widget, gpointer data)
1113 {
1114         ViewWindow *vw = data;
1115         ImageWindow *imd;
1116
1117         imd = view_window_active_image(vw);
1118         file_util_copy(image_get_path(imd), NULL, NULL, imd->widget);
1119 }
1120
1121 static void view_move_cb(GtkWidget *widget, gpointer data)
1122 {
1123         ViewWindow *vw = data;
1124         ImageWindow *imd;
1125
1126         imd = view_window_active_image(vw);
1127         file_util_move(image_get_path(imd), NULL, NULL, imd->widget);
1128 }
1129
1130 static void view_rename_cb(GtkWidget *widget, gpointer data)
1131 {
1132         ViewWindow *vw = data;
1133         ImageWindow *imd;
1134
1135         imd = view_window_active_image(vw);
1136         file_util_rename(image_get_path(imd), NULL, imd->widget);
1137 }
1138
1139 static void view_delete_cb(GtkWidget *widget, gpointer data)
1140 {
1141         ViewWindow *vw = data;
1142         ImageWindow *imd;
1143
1144         imd = view_window_active_image(vw);
1145         file_util_delete(image_get_path(imd), NULL, imd->widget);
1146 }
1147
1148 static void view_fullscreen_cb(GtkWidget *widget, gpointer data)
1149 {
1150         ViewWindow *vw = data;
1151
1152         view_fullscreen_toggle(vw, FALSE);
1153 }
1154
1155 static void view_slideshow_start_cb(GtkWidget *widget, gpointer data)
1156 {
1157         ViewWindow *vw = data;
1158
1159         view_slideshow_start(vw);
1160 }
1161
1162 static void view_slideshow_stop_cb(GtkWidget *widget, gpointer data)
1163 {
1164         ViewWindow *vw = data;
1165
1166         view_slideshow_stop(vw);
1167 }
1168
1169 static void view_slideshow_pause_cb(GtkWidget *widget, gpointer data)
1170 {
1171         ViewWindow *vw = data;
1172
1173         slideshow_pause_toggle(vw->ss);
1174 }
1175
1176 static void view_close_cb(GtkWidget *widget, gpointer data)
1177 {
1178         ViewWindow *vw = data;
1179
1180         view_window_close(vw);
1181 }
1182
1183 static GtkWidget *view_popup_menu(ViewWindow *vw)
1184 {
1185         GtkWidget *menu;
1186         GtkWidget *item;
1187
1188         menu = popup_menu_short_lived();
1189
1190         menu_item_add_stock(menu, _("Zoom _in"), GTK_STOCK_ZOOM_IN, G_CALLBACK(view_zoom_in_cb), vw);
1191         menu_item_add_stock(menu, _("Zoom _out"), GTK_STOCK_ZOOM_OUT, G_CALLBACK(view_zoom_out_cb), vw);
1192         menu_item_add_stock(menu, _("Zoom _1:1"), GTK_STOCK_ZOOM_100, G_CALLBACK(view_zoom_1_1_cb), vw);
1193         menu_item_add_stock(menu, _("Fit image to _window"), GTK_STOCK_ZOOM_FIT, G_CALLBACK(view_zoom_fit_cb), vw);
1194         menu_item_add_divider(menu);
1195
1196         item = submenu_add_edit(menu, NULL, G_CALLBACK(view_edit_cb), vw);
1197         menu_item_add_divider(item);
1198         menu_item_add(item, _("Set as _wallpaper"), G_CALLBACK(view_wallpaper_cb), vw);
1199
1200         submenu_add_alter(menu, G_CALLBACK(view_alter_cb), vw);
1201
1202         menu_item_add_stock(menu, _("_Properties"), GTK_STOCK_PROPERTIES, G_CALLBACK(view_info_cb), vw);
1203
1204         menu_item_add_stock(menu, _("View in _new window"), GTK_STOCK_NEW, G_CALLBACK(view_new_window_cb), vw);
1205
1206         menu_item_add_divider(menu);
1207         menu_item_add_stock(menu, _("_Copy..."), GTK_STOCK_COPY, G_CALLBACK(view_copy_cb), vw);
1208         menu_item_add(menu, _("_Move..."), G_CALLBACK(view_move_cb), vw);
1209         menu_item_add(menu, _("_Rename..."), G_CALLBACK(view_rename_cb), vw);
1210         menu_item_add_stock(menu, _("_Delete..."), GTK_STOCK_DELETE, G_CALLBACK(view_delete_cb), vw);
1211
1212         menu_item_add_divider(menu);
1213
1214         if (vw->ss)
1215                 {
1216                 menu_item_add(menu, _("_Stop slideshow"), G_CALLBACK(view_slideshow_stop_cb), vw);
1217                 if (slideshow_paused(vw->ss))
1218                         {
1219                         item = menu_item_add(menu, _("Continue slides_how"),
1220                                              G_CALLBACK(view_slideshow_pause_cb), vw);
1221                         }
1222                 else
1223                         {
1224                         item = menu_item_add(menu, _("Pause slides_how"),
1225                                              G_CALLBACK(view_slideshow_pause_cb), vw);
1226                         }
1227                 }
1228         else
1229                 {
1230                 item = menu_item_add(menu, _("_Start slideshow"), G_CALLBACK(view_slideshow_start_cb), vw);
1231                 gtk_widget_set_sensitive(item, (vw->list != NULL) || view_window_contains_collection(vw));
1232                 item = menu_item_add(menu, _("Pause slides_how"), G_CALLBACK(view_slideshow_pause_cb), vw);
1233                 gtk_widget_set_sensitive(item, FALSE);
1234                 }
1235
1236         if (vw->fs)
1237                 {
1238                 menu_item_add(menu, _("Exit _full screen"), G_CALLBACK(view_fullscreen_cb), vw);
1239                 }
1240         else
1241                 {
1242                 menu_item_add(menu, _("_Full screen"), G_CALLBACK(view_fullscreen_cb), vw);
1243                 }
1244
1245         menu_item_add_divider(menu);
1246         menu_item_add_stock(menu, _("C_lose window"), GTK_STOCK_CLOSE, G_CALLBACK(view_close_cb), vw);
1247
1248         return menu;
1249 }
1250
1251 /*
1252  *-------------------------------------------------------------------
1253  * dnd confirm dir
1254  *-------------------------------------------------------------------
1255  */
1256
1257 typedef struct {
1258         ViewWindow *vw;
1259         GList *list;
1260 } CViewConfirmD;
1261
1262 static void view_dir_list_cancel(GtkWidget *widget, gpointer data)
1263 {
1264         /* do nothing */
1265 }
1266
1267 static void view_dir_list_do(ViewWindow *vw, GList *list, gint skip, gint recurse)
1268 {
1269         GList *work;
1270
1271         view_window_set_list(vw, NULL);
1272
1273         work = list;
1274         while (work)
1275                 {
1276                 gchar *path = work->data;
1277                 work = work->next;
1278
1279                 if (isdir(path))
1280                         {
1281                         if (!skip)
1282                                 {
1283                                 GList *list = NULL;
1284
1285                                 if (recurse)
1286                                         {
1287                                         list = path_list_recursive(path);
1288                                         }
1289                                 else
1290                                         {
1291                                         path_list(path, &list, NULL);
1292                                         list = path_list_sort(list);
1293                                         list = path_list_filter(list, FALSE);
1294                                         }
1295                                 if (list) vw->list = g_list_concat(vw->list, list);
1296                                 }
1297                         }
1298                 else
1299                         {
1300                         /* FIXME: no filtering here */
1301                         vw->list = g_list_append(vw->list, g_strdup(path));
1302                         }
1303                 }
1304
1305         if (vw->list)
1306                 {
1307                 gchar *path;
1308
1309                 vw->list_pointer = vw->list;
1310                 path = vw->list->data;
1311                 image_change_path(vw->imd, path, image_zoom_get_default(vw->imd, zoom_mode));
1312
1313                 work = vw->list->next;
1314                 if (enable_read_ahead && work)
1315                         {
1316                         path = work->data;
1317                         image_prebuffer_set(vw->imd, path);
1318                         }
1319                 }
1320         else
1321                 {
1322                 image_change_path(vw->imd, NULL, image_zoom_get_default(vw->imd, zoom_mode));
1323                 }
1324 }
1325
1326 static void view_dir_list_add(GtkWidget *widget, gpointer data)
1327 {
1328         CViewConfirmD *d = data;
1329         view_dir_list_do(d->vw, d->list, FALSE, FALSE);
1330 }
1331
1332 static void view_dir_list_recurse(GtkWidget *widget, gpointer data)
1333 {
1334         CViewConfirmD *d = data;
1335         view_dir_list_do(d->vw, d->list, FALSE, TRUE);
1336 }
1337
1338 static void view_dir_list_skip(GtkWidget *widget, gpointer data)
1339 {
1340         CViewConfirmD *d = data;
1341         view_dir_list_do(d->vw, d->list, TRUE, FALSE);
1342 }
1343
1344 static void view_dir_list_destroy(GtkWidget *widget, gpointer data)
1345 {
1346         CViewConfirmD *d = data;
1347         path_list_free(d->list);
1348         g_free(d);
1349 }
1350
1351 static GtkWidget *view_confirm_dir_list(ViewWindow *vw, GList *list)
1352 {
1353         GtkWidget *menu;
1354         CViewConfirmD *d;
1355
1356         d = g_new(CViewConfirmD, 1);
1357         d->vw = vw;
1358         d->list = list;
1359
1360         menu = popup_menu_short_lived();
1361         g_signal_connect(G_OBJECT(menu), "destroy",
1362                          G_CALLBACK(view_dir_list_destroy), d);
1363
1364         menu_item_add_stock(menu, _("Dropped list includes folders."), GTK_STOCK_DND_MULTIPLE, NULL, NULL);
1365         menu_item_add_divider(menu);
1366         menu_item_add_stock(menu, _("_Add contents"), GTK_STOCK_OK, G_CALLBACK(view_dir_list_add), d);
1367         menu_item_add_stock(menu, _("Add contents _recursive"), GTK_STOCK_ADD, G_CALLBACK(view_dir_list_recurse), d);
1368         menu_item_add_stock(menu, _("_Skip folders"), GTK_STOCK_REMOVE, G_CALLBACK(view_dir_list_skip), d);
1369         menu_item_add_divider(menu);
1370         menu_item_add_stock(menu, _("Cancel"), GTK_STOCK_CANCEL, G_CALLBACK(view_dir_list_cancel), d);
1371
1372         return menu;
1373 }
1374
1375 /*
1376  *-----------------------------------------------------------------------------
1377  * image drag and drop routines
1378  *-----------------------------------------------------------------------------
1379  */
1380
1381 static void view_window_get_dnd_data(GtkWidget *widget, GdkDragContext *context,
1382                                      gint x, gint y,
1383                                      GtkSelectionData *selection_data, guint info,
1384                                      guint time, gpointer data)
1385 {
1386         ViewWindow *vw = data;
1387         ImageWindow *imd;
1388
1389         if (gtk_drag_get_source_widget(context) == vw->imd->pr) return;
1390
1391         imd = vw->imd;
1392
1393         if (info == TARGET_URI_LIST || info == TARGET_APP_COLLECTION_MEMBER)
1394                 {
1395                 CollectionData *source;
1396                 GList *list;
1397                 GList *info_list;
1398
1399                 if (info == TARGET_URI_LIST)
1400                         {
1401                         GList *work;
1402
1403                         list = uri_list_from_text((gchar *)selection_data->data, TRUE);
1404
1405                         work = list;
1406                         while (work)
1407                                 {
1408                                 if (isdir((gchar *)work->data))
1409                                         {
1410                                         GtkWidget *menu;
1411                                         menu = view_confirm_dir_list(vw, list);
1412                                         gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, 0, time);
1413                                         return;
1414                                         }
1415                                 work = work->next;
1416                                 }
1417
1418                         list = path_list_filter(list, FALSE);
1419
1420                         source = NULL;
1421                         info_list = NULL;
1422                         }
1423                 else
1424                         {
1425                         source = collection_from_dnd_data((gchar *)selection_data->data, &list, &info_list);
1426                         }
1427
1428                 if (list)
1429                         {
1430                         gchar *path;
1431
1432                         path = list->data;
1433                         if (isfile(path))
1434                                 {
1435                                 view_slideshow_stop(vw);
1436                                 view_window_set_list(vw, NULL);
1437
1438                                 if (source && info_list)
1439                                         {
1440                                         image_change_from_collection(imd, source, info_list->data, image_zoom_get_default(imd, zoom_mode));
1441                                         }
1442                                 else
1443                                         {
1444                                         if (list->next)
1445                                                 {
1446                                                 vw->list = list;
1447                                                 list = NULL;
1448
1449                                                 vw->list_pointer = vw->list;
1450                                                 }
1451                                         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
1452                                         }
1453                                 }
1454                         }
1455                 path_list_free(list);
1456                 g_list_free(info_list);
1457                 }
1458 }
1459
1460 static void view_window_set_dnd_data(GtkWidget *widget, GdkDragContext *context,
1461                                      GtkSelectionData *selection_data, guint info,
1462                                      guint time, gpointer data)
1463 {
1464         ViewWindow *vw = data;
1465         const gchar *path;
1466
1467         path = image_get_path(vw->imd);
1468
1469         if (path)
1470                 {
1471                 gchar *text = NULL;
1472                 gint len;
1473                 gint plain_text;
1474                 GList *list;
1475
1476                 switch (info)
1477                         {
1478                         case TARGET_URI_LIST:
1479                                 plain_text = FALSE;
1480                                 break;
1481                         case TARGET_TEXT_PLAIN:
1482                         default:
1483                                 plain_text = TRUE;
1484                                 break;
1485                         }
1486                 list = g_list_append(NULL, (gchar *)path);
1487                 text = uri_text_from_list(list, &len, plain_text);
1488                 g_list_free(list);
1489                 if (text)
1490                         {
1491                         gtk_selection_data_set (selection_data, selection_data->target,
1492                                                 8, (guchar *)text, len);
1493                         g_free(text);
1494                         }
1495                 }
1496         else
1497                 {
1498                 gtk_selection_data_set (selection_data, selection_data->target,
1499                                         8, NULL, 0);
1500                 }
1501 }
1502
1503 static void view_window_dnd_init(ViewWindow *vw)
1504 {
1505         ImageWindow *imd;
1506
1507         imd = vw->imd;
1508
1509         gtk_drag_source_set(imd->pr, GDK_BUTTON2_MASK,
1510                             dnd_file_drag_types, dnd_file_drag_types_count,
1511                             GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
1512         g_signal_connect(G_OBJECT(imd->pr), "drag_data_get",
1513                          G_CALLBACK(view_window_set_dnd_data), vw);
1514
1515         gtk_drag_dest_set(imd->pr,
1516                           GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP,
1517                           dnd_file_drop_types, dnd_file_drop_types_count,
1518                           GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
1519         g_signal_connect(G_OBJECT(imd->pr), "drag_data_received",
1520                          G_CALLBACK(view_window_get_dnd_data), vw);
1521 }
1522
1523 /*
1524  *-----------------------------------------------------------------------------
1525  * maintenance (for rename, move, remove)
1526  *-----------------------------------------------------------------------------
1527  */
1528
1529 static void view_real_removed(ViewWindow *vw, const gchar *path, GList *ignore_list)
1530 {
1531         ImageWindow *imd;
1532         const gchar *image_path;
1533
1534         imd = view_window_active_image(vw);
1535         image_path = image_get_path(imd);
1536
1537         if (image_path && strcmp(image_path, path) == 0)
1538                 {
1539                 if (vw->list)
1540                         {
1541                         view_list_step(vw, TRUE);
1542                         if (image_get_path(imd) == image_path)
1543                                 {
1544                                 view_list_step(vw, FALSE);
1545                                 }
1546                         }
1547                 else if (view_window_contains_collection(vw))
1548                         {
1549                         view_collection_step(vw, TRUE);
1550                         if (image_get_path(imd) == image_path)
1551                                 {
1552                                 view_collection_step(vw, FALSE);
1553                                 }
1554                         }
1555                 if (image_get_path(imd) == image_path)
1556                         {
1557                         image_change_path(imd, NULL, image_zoom_get_default(imd, zoom_mode));
1558                         }
1559                 }
1560
1561         if (vw->list)
1562                 {
1563                 GList *work;
1564                 GList *old;
1565
1566                 old = vw->list_pointer;
1567
1568                 work = vw->list;
1569                 while (work)
1570                         {
1571                         gchar *chk_path;
1572                         GList *chk_link;
1573
1574                         chk_path = work->data;
1575                         chk_link = work;
1576                         work = work->next;
1577
1578                         if (strcmp(chk_path, path) == 0)
1579                                 {
1580                                 if (vw->list_pointer == chk_link)
1581                                         {
1582                                         vw->list_pointer = (chk_link->next) ? chk_link->next : chk_link->prev;
1583                                         }
1584                                 vw->list = g_list_remove(vw->list, chk_path);
1585                                 g_free(chk_path);
1586                                 }
1587                         }
1588
1589                 /* handles stepping correctly when same image is in the list more than once */
1590                 if (old && old != vw->list_pointer)
1591                         {
1592                         gchar *path;
1593
1594                         if (vw->list_pointer)
1595                                 {
1596                                 path = vw->list_pointer->data;
1597                                 }
1598                         else
1599                                 {
1600                                 path = NULL;
1601                                 }
1602
1603                         image_change_path(imd, path, image_zoom_get_default(imd, zoom_mode));
1604                         }
1605                 }
1606
1607         if (vw->overlay_id != -1) image_overlay_update(imd, vw->overlay_id);
1608 }
1609
1610 static void view_real_moved(ViewWindow *vw, const gchar *source, const gchar *dest)
1611 {
1612         ImageWindow *imd;
1613         const gchar *image_path;
1614
1615         imd = view_window_active_image(vw);
1616         image_path = image_get_path(imd);
1617
1618         if (image_path && strcmp(image_path, source) == 0)
1619                 {
1620                 image_set_path(imd, dest);
1621                 }
1622
1623         if (vw->list)
1624                 {
1625                 GList *work;
1626                 work = vw->list;
1627                 while (work)
1628                         {
1629                         gchar *chk_path;
1630
1631                         chk_path = work->data;
1632
1633                         if (strcmp(chk_path, source) == 0)
1634                                 {
1635                                 work->data = g_strdup(dest);
1636                                 g_free(chk_path);
1637                                 }
1638
1639                         work = work->next;
1640                         }
1641                 }
1642 }
1643
1644 void view_window_maint_removed(const gchar *path, GList *ignore_list)
1645 {
1646         GList *work = view_window_list;
1647         while (work)
1648                 {
1649                 ViewWindow *vw = work->data;
1650                 work = work->next;
1651
1652                 view_real_removed(vw, path, ignore_list);
1653                 }
1654 }
1655
1656 void view_window_maint_moved(const gchar *source, const gchar *dest)
1657 {
1658         GList *work = view_window_list;
1659         while (work)
1660                 {
1661                 ViewWindow *vw = work->data;
1662                 work = work->next;
1663
1664                 view_real_moved(vw, source, dest);
1665                 }
1666 }
1667