src/pan-view/pan-view.cc

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "pan-view.h"
  23
  24 #include <cmath>
  25 #include <cstring>
  26
  27 #include <gdk-pixbuf/gdk-pixbuf.h>
  28 #include <gdk/gdk.h>
  29 #include <glib-object.h>
  30 #include <gtk/gtk.h>
  31
  32 #include "bar-exif.h"
  33 #include "cache-loader.h"
  34 #include "cache.h"
  35 #include "compat.h"
  36 #include "debug.h"
  37 #include "dnd.h"
  38 #include "editors.h"
  39 #include "exif.h"
  40 #include "filedata.h"
  41 #include "fullscreen.h"
  42 #include "image-load.h"
  43 #include "image.h"
  44 #include "img-view.h"
  45 #include "intl.h"
  46 #include "layout-util.h"
  47 #include "layout.h"
  48 #include "main-defines.h"
  49 #include "menu.h"
  50 #include "metadata.h"
  51 #include "options.h"
  52 #include "pan-calendar.h"
  53 #include "pan-folder.h"
  54 #include "pan-grid.h"
  55 #include "pan-item.h"
  56 #include "pan-timeline.h"
  57 #include "pan-types.h"
  58 #include "pan-util.h"
  59 #include "pan-view-filter.h"
  60 #include "pan-view-search.h"
  61 #include "pixbuf-renderer.h"
  62 #include "pixbuf-util.h"
  63 #include "thumb.h"
  64 #include "ui-fileops.h"
  65 #include "ui-menu.h"
  66 #include "ui-misc.h"
  67 #include "ui-tabcomp.h"
  68 #include "ui-utildlg.h"
  69 #include "uri-utils.h"
  70 #include "utilops.h"
  71 #include "window.h"
  72
  73 namespace
  74 {
  75
  76 struct PanGrid {
  77         gint x;
  78         gint y;
  79         gint w;
  80         gint h;
  81         GList *list;
  82 };
  83
  84 constexpr gint PAN_WINDOW_DEFAULT_WIDTH = 720;
  85 constexpr gint PAN_WINDOW_DEFAULT_HEIGHT = 500;
  86
  87 constexpr gint PAN_TILE_SIZE = 512;
  88
  89 constexpr gdouble ZOOM_INCREMENT = 1.0;
  90 constexpr gint ZOOM_LABEL_WIDTH = 64;
  91
  92 constexpr gint PAN_GRID_SIZE = 60;
  93 constexpr gint PAN_GRID_ALPHA = 20;
  94 #define PAN_GRID_COLOR 0, 0, 0, PAN_GRID_ALPHA
  95
  96 #define PAN_BACKGROUND_COLOR 150, 150, 150, 255
  97
  98 /* popup info box */
  99 constexpr gint PAN_POPUP_BORDER = 1;
 100 constexpr guint8 PAN_POPUP_ALPHA = 255;
 101 constexpr PanColor PAN_POPUP_COLOR{255, 255, 225, PAN_POPUP_ALPHA};
 102 constexpr PanColor PAN_POPUP_BORDER_COLOR{0, 0, 0, PAN_POPUP_ALPHA};
 103
 104 } // namespace
 105
 106 #define PAN_PREF_GROUP          "pan_view_options"
 107 #define PAN_PREF_HIDE_WARNING   "hide_performance_warning"
 108 #define PAN_PREF_EXIF_PAN_DATE  "use_exif_date"
 109 #define PAN_PREF_INFO_IMAGE     "info_image_size"
 110 #define PAN_PREF_INFO_EXIF      "info_includes_exif"
 111
 112
 113 static GList *pan_window_list = nullptr;
 114
 115
 116 static void pan_layout_update_idle(PanWindow *pw);
 117
 118 static void pan_fullscreen_toggle(PanWindow *pw, gboolean force_off);
 119
 120 static void pan_window_close(PanWindow *pw);
 121
 122 static GtkWidget *pan_popup_menu(PanWindow *pw);
 123
 124 static void pan_window_dnd_init(PanWindow *pw);
 125
 126 /**
 127  * This array must be kept in sync with the contents of:\n
 128  * @link pan_window_key_press_cb @endlink \n
 129  * @link pan_popup_menu @endlink
 130  *
 131  * See also @link hard_coded_window_keys @endlink
 132  **/
 133 hard_coded_window_keys pan_view_window_keys[] = {
 134         {GDK_CONTROL_MASK, 'C', N_("Copy")},
 135         {GDK_CONTROL_MASK, 'M', N_("Move")},
 136         {GDK_CONTROL_MASK, 'R', N_("Rename")},
 137         {GDK_CONTROL_MASK, 'D', N_("Move to Trash")},
 138         {GDK_CONTROL_MASK, 'W', N_("Close window")},
 139         {GDK_CONTROL_MASK, 'F', N_("Display Find search bar")},
 140         {GDK_CONTROL_MASK, 'G', N_("Start search")},
 141         {static_cast<GdkModifierType>(0), GDK_KEY_Escape, N_("Exit fullscreen")},
 142         {static_cast<GdkModifierType>(0), GDK_KEY_Escape, N_("Hide Find search bar")},
 143         {static_cast<GdkModifierType>(0), GDK_KEY_equal, N_("Zoom in")},
 144         {static_cast<GdkModifierType>(0), GDK_KEY_plus, N_("Zoom in")},
 145         {static_cast<GdkModifierType>(0), GDK_KEY_minus, N_("Zoom out")},
 146         {static_cast<GdkModifierType>(0), GDK_KEY_Z, N_("Zoom 1:1")},
 147         {static_cast<GdkModifierType>(0), GDK_KEY_1, N_("Zoom 1:1")},
 148         {static_cast<GdkModifierType>(0), GDK_KEY_KP_Divide, N_("Zoom 1:1")},
 149         {static_cast<GdkModifierType>(0), '2', N_("Zoom 2:1")},
 150         {static_cast<GdkModifierType>(0), '3', N_("Zoom 3:1")},
 151         {static_cast<GdkModifierType>(0), '4', N_("Zoom 4:1")},
 152         {static_cast<GdkModifierType>(0), '7', N_("Zoom 1:4")},
 153         {static_cast<GdkModifierType>(0), '8', N_("Zoom 1:3")},
 154         {static_cast<GdkModifierType>(0), '9', N_("Zoom 1:2")},
 155         {static_cast<GdkModifierType>(0), 'F', N_("Full screen")},
 156         {static_cast<GdkModifierType>(0), 'V', N_("Full screen")},
 157         {static_cast<GdkModifierType>(0), GDK_KEY_F11, N_("Full screen")},
 158         {static_cast<GdkModifierType>(0), '/', N_("Display Find search bar")},
 159         {static_cast<GdkModifierType>(0), GDK_KEY_Left, N_("Scroll left")},
 160         {static_cast<GdkModifierType>(0), GDK_KEY_Right, N_("Scroll right")},
 161         {static_cast<GdkModifierType>(0), GDK_KEY_Up, N_("Scroll up")},
 162         {static_cast<GdkModifierType>(0), GDK_KEY_Down, N_("Scroll down")},
 163         {GDK_SHIFT_MASK, GDK_KEY_Left, N_("Scroll left faster")},
 164         {GDK_SHIFT_MASK, GDK_KEY_Right, N_("Scroll right faster")},
 165         {GDK_SHIFT_MASK, GDK_KEY_Up, N_("Scroll up faster")},
 166         {GDK_SHIFT_MASK, GDK_KEY_Down, N_("Scroll down faster")},
 167         {static_cast<GdkModifierType>(0), GDK_KEY_Page_Up, N_("Scroll display half screen up")},
 168         {static_cast<GdkModifierType>(0), GDK_KEY_Page_Down, N_("Scroll display half screen down")},
 169         {static_cast<GdkModifierType>(0), GDK_KEY_Home, N_("Scroll display half screen left")},
 170         {static_cast<GdkModifierType>(0), GDK_KEY_End, N_("Scroll display half screen right")},
 171         {static_cast<GdkModifierType>(0), 0, nullptr}
 172 };
 173
 174 /*
 175  *-----------------------------------------------------------------------------
 176  * the image/thumb loader queue
 177  *-----------------------------------------------------------------------------
 178  */
 179
 180 static gboolean pan_queue_step(PanWindow *pw);
 181
 182
 183 static void pan_queue_thumb_done_cb(ThumbLoader *tl, gpointer data)
 184 {
 185         auto pw = static_cast<PanWindow *>(data);
 186
 187         if (pw->queue_pi)
 188                 {
 189                 PanItem *pi;
 190                 gint rc;
 191
 192                 pi = pw->queue_pi;
 193                 pw->queue_pi = nullptr;
 194
 195                 pi->queued = FALSE;
 196
 197                 if (pi->pixbuf) g_object_unref(pi->pixbuf);
 198                 pi->pixbuf = thumb_loader_get_pixbuf(tl);
 199
 200                 rc = pi->refcount;
 201                 image_area_changed(pw->imd, pi->x, pi->y, pi->width, pi->height);
 202                 pi->refcount = rc;
 203                 }
 204
 205         thumb_loader_free(pw->tl);
 206         pw->tl = nullptr;
 207
 208         while (pan_queue_step(pw));
 209 }
 210
 211 static void pan_queue_image_done_cb(ImageLoader *il, gpointer data)
 212 {
 213         auto pw = static_cast<PanWindow *>(data);
 214         GdkPixbuf *rotated = nullptr;
 215
 216         if (pw->queue_pi)
 217                 {
 218                 PanItem *pi;
 219                 gint rc;
 220
 221                 pi = pw->queue_pi;
 222                 pw->queue_pi = nullptr;
 223
 224                 pi->queued = FALSE;
 225
 226                 if (pi->pixbuf) g_object_unref(pi->pixbuf);
 227                 pi->pixbuf = image_loader_get_pixbuf(pw->il);
 228
 229                 if (pi->pixbuf && options->image.exif_rotate_enable)
 230                         {
 231                         if (!il->fd->exif_orientation)
 232                                 {
 233                                 if (g_strcmp0(il->fd->format_name, "heif") != 0)
 234                                         {
 235                                         il->fd->exif_orientation = metadata_read_int(il->fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
 236                                         }
 237                                 else
 238                                         {
 239                                         il->fd->exif_orientation = EXIF_ORIENTATION_TOP_LEFT;
 240                                         }
 241                                 }
 242
 243                         if (il->fd->exif_orientation != EXIF_ORIENTATION_TOP_LEFT)
 244                                 {
 245                                 rotated = pixbuf_apply_orientation(pi->pixbuf, il->fd->exif_orientation);
 246                                 pi->pixbuf = rotated;
 247                                 }
 248                         }
 249
 250                 if (pi->pixbuf) g_object_ref(pi->pixbuf);
 251
 252                 if (pi->pixbuf && pw->size != PAN_IMAGE_SIZE_100 &&
 253                     (gdk_pixbuf_get_width(pi->pixbuf) > pi->width ||
 254                      gdk_pixbuf_get_height(pi->pixbuf) > pi->height))
 255                         {
 256                         GdkPixbuf *tmp;
 257
 258                         tmp = pi->pixbuf;
 259                         pi->pixbuf = gdk_pixbuf_scale_simple(tmp, pi->width, pi->height,
 260                                                              static_cast<GdkInterpType>(options->image.zoom_quality));
 261                         g_object_unref(tmp);
 262                         }
 263
 264                 rc = pi->refcount;
 265                 image_area_changed(pw->imd, pi->x, pi->y, pi->width, pi->height);
 266                 pi->refcount = rc;
 267                 }
 268
 269         image_loader_free(pw->il);
 270         pw->il = nullptr;
 271
 272         while (pan_queue_step(pw));
 273 }
 274
 275 static gboolean pan_queue_step(PanWindow *pw)
 276 {
 277         PanItem *pi;
 278
 279         if (!pw->queue) return FALSE;
 280
 281         pi = static_cast<PanItem *>(pw->queue->data);
 282         pw->queue = g_list_remove(pw->queue, pi);
 283         pw->queue_pi = pi;
 284
 285         if (!pw->queue_pi->fd)
 286                 {
 287                 pw->queue_pi->queued = FALSE;
 288                 pw->queue_pi = nullptr;
 289                 return TRUE;
 290                 }
 291
 292         image_loader_free(pw->il);
 293         pw->il = nullptr;
 294         thumb_loader_free(pw->tl);
 295         pw->tl = nullptr;
 296
 297         if (pi->type == PAN_ITEM_IMAGE)
 298                 {
 299                 pw->il = image_loader_new(pi->fd);
 300
 301                 if (pw->size != PAN_IMAGE_SIZE_100)
 302                         {
 303                         image_loader_set_requested_size(pw->il, pi->width, pi->height);
 304                         }
 305
 306                 g_signal_connect(G_OBJECT(pw->il), "error", (GCallback)pan_queue_image_done_cb, pw);
 307                 g_signal_connect(G_OBJECT(pw->il), "done", (GCallback)pan_queue_image_done_cb, pw);
 308
 309                 if (image_loader_start(pw->il)) return FALSE;
 310
 311                 image_loader_free(pw->il);
 312                 pw->il = nullptr;
 313                 }
 314         else if (pi->type == PAN_ITEM_THUMB)
 315                 {
 316                 pw->tl = thumb_loader_new(PAN_THUMB_SIZE, PAN_THUMB_SIZE);
 317
 318                 if (!pw->tl->standard_loader)
 319                         {
 320                         /* The classic loader will recreate a thumbnail any time we
 321                          * request a different size than what exists. This view will
 322                          * almost never use the user configured sizes so disable cache.
 323                          */
 324                         thumb_loader_set_cache(pw->tl, FALSE, FALSE, FALSE);
 325                         }
 326
 327                 thumb_loader_set_callbacks(pw->tl,
 328                                            pan_queue_thumb_done_cb,
 329                                            pan_queue_thumb_done_cb,
 330                                            nullptr, pw);
 331
 332                 if (thumb_loader_start(pw->tl, pi->fd)) return FALSE;
 333
 334                 thumb_loader_free(pw->tl);
 335                 pw->tl = nullptr;
 336                 }
 337
 338         pw->queue_pi->queued = FALSE;
 339         pw->queue_pi = nullptr;
 340         return TRUE;
 341 }
 342
 343 static void pan_queue_add(PanWindow *pw, PanItem *pi)
 344 {
 345         if (!pi || pi->queued || pi->pixbuf) return;
 346         if (pw->size <= PAN_IMAGE_SIZE_THUMB_NONE &&
 347             (!pi->key || strcmp(pi->key, "info") != 0) )
 348                 {
 349                 return;
 350                 }
 351
 352         pi->queued = TRUE;
 353         pw->queue = g_list_prepend(pw->queue, pi);
 354
 355         if (!pw->tl && !pw->il) while (pan_queue_step(pw));
 356 }
 357
 358
 359 /*
 360  *-----------------------------------------------------------------------------
 361  * tile request/dispose handlers
 362  *-----------------------------------------------------------------------------
 363  */
 364
 365 static gboolean pan_window_request_tile_cb(PixbufRenderer *pr, gint x, gint y,
 366                                            gint width, gint height, GdkPixbuf *pixbuf, gpointer data)
 367 {
 368         auto pw = static_cast<PanWindow *>(data);
 369         GList *list;
 370         GList *work;
 371         gint i;
 372
 373         pixbuf_set_rect_fill(pixbuf,
 374                              0, 0, width, height,
 375                              PAN_BACKGROUND_COLOR);
 376
 377         for (i = (x / PAN_GRID_SIZE) * PAN_GRID_SIZE; i < x + width; i += PAN_GRID_SIZE)
 378                 {
 379                 gint rx;
 380                 gint ry;
 381                 gint rw;
 382                 gint rh;
 383
 384                 if (util_clip_region(x, y, width, height,
 385                                      i, y, 1, height,
 386                                      &rx, &ry, &rw, &rh))
 387                         {
 388                         pixbuf_draw_rect_fill(pixbuf,
 389                                               rx - x, ry - y, rw, rh,
 390                                               PAN_GRID_COLOR);
 391                         }
 392                 }
 393         for (i = (y / PAN_GRID_SIZE) * PAN_GRID_SIZE; i < y + height; i += PAN_GRID_SIZE)
 394                 {
 395                 gint rx;
 396                 gint ry;
 397                 gint rw;
 398                 gint rh;
 399
 400                 if (util_clip_region(x, y, width, height,
 401                                      x, i, width, 1,
 402                                      &rx, &ry, &rw, &rh))
 403                         {
 404                         pixbuf_draw_rect_fill(pixbuf,
 405                                               rx - x, ry - y, rw, rh,
 406                                               PAN_GRID_COLOR);
 407                         }
 408                 }
 409
 410         list = pan_layout_intersect(pw, x, y, width, height);
 411         work = list;
 412         while (work)
 413                 {
 414                 PanItem *pi;
 415                 gboolean queue = FALSE;
 416
 417                 pi = static_cast<PanItem *>(work->data);
 418                 work = work->next;
 419
 420                 pi->refcount++;
 421
 422                 switch (pi->type)
 423                         {
 424                         case PAN_ITEM_BOX:
 425                                 queue = pan_item_box_draw(pw, pi, pixbuf, pr, x, y, width, height);
 426                                 break;
 427                         case PAN_ITEM_TRIANGLE:
 428                                 queue = pan_item_tri_draw(pw, pi, pixbuf, pr, x, y, width, height);
 429                                 break;
 430                         case PAN_ITEM_TEXT:
 431                                 queue = pan_item_text_draw(pw, pi, pixbuf, pr, x, y, width, height);
 432                                 break;
 433                         case PAN_ITEM_THUMB:
 434                                 queue = pan_item_thumb_draw(pw, pi, pixbuf, pr, x, y, width, height);
 435                                 break;
 436                         case PAN_ITEM_IMAGE:
 437                                 queue = pan_item_image_draw(pw, pi, pixbuf, pr, x, y, width, height);
 438                                 break;
 439                         case PAN_ITEM_NONE:
 440                         default:
 441                                 break;
 442                         }
 443
 444                 if (queue) pan_queue_add(pw, pi);
 445                 }
 446
 447         g_list_free(list);
 448
 449         return TRUE;
 450 }
 451
 452 static void pan_window_dispose_tile_cb(PixbufRenderer *, gint x, gint y,
 453                                        gint width, gint height, GdkPixbuf *, gpointer data)
 454 {
 455         auto pw = static_cast<PanWindow *>(data);
 456         GList *list;
 457         GList *work;
 458
 459         list = pan_layout_intersect(pw, x, y, width, height);
 460         work = list;
 461         while (work)
 462                 {
 463                 PanItem *pi;
 464
 465                 pi = static_cast<PanItem *>(work->data);
 466                 work = work->next;
 467
 468                 if (pi->refcount > 0)
 469                         {
 470                         pi->refcount--;
 471
 472                         if (pi->refcount == 0)
 473                                 {
 474                                 if (pi->queued)
 475                                         {
 476                                         pw->queue = g_list_remove(pw->queue, pi);
 477                                         pi->queued = FALSE;
 478                                         }
 479                                 if (pw->queue_pi == pi) pw->queue_pi = nullptr;
 480                                 if (pi->pixbuf)
 481                                         {
 482                                         g_object_unref(pi->pixbuf);
 483                                         pi->pixbuf = nullptr;
 484                                         }
 485                                 }
 486                         }
 487                 }
 488
 489         g_list_free(list);
 490 }
 491
 492
 493 /*
 494  *-----------------------------------------------------------------------------
 495  * misc
 496  *-----------------------------------------------------------------------------
 497  */
 498
 499 static void pan_window_message(PanWindow *pw, const gchar *text)
 500 {
 501         GList *work;
 502         gint count = 0;
 503         gint64 size = 0;
 504         gchar *ss;
 505         gchar *buf;
 506
 507         if (text)
 508                 {
 509                 gtk_label_set_text(GTK_LABEL(pw->label_message), text);
 510                 return;
 511                 }
 512
 513         work = pw->list_static;
 514         if (pw->layout == PAN_LAYOUT_CALENDAR)
 515                 {
 516                 while (work)
 517                         {
 518                         PanItem *pi;
 519
 520                         pi = static_cast<PanItem *>(work->data);
 521                         work = work->next;
 522
 523                         if (pi->fd &&
 524                             pi->type == PAN_ITEM_BOX &&
 525                             pi->key && strcmp(pi->key, "dot") == 0)
 526                                 {
 527                                 size += pi->fd->size;
 528                                 count++;
 529                                 }
 530                         }
 531                 }
 532         else
 533                 {
 534                 while (work)
 535                         {
 536                         PanItem *pi;
 537
 538                         pi = static_cast<PanItem *>(work->data);
 539                         work = work->next;
 540
 541                         if (pi->fd &&
 542                             (pi->type == PAN_ITEM_THUMB || pi->type == PAN_ITEM_IMAGE))
 543                                 {
 544                                 size += pi->fd->size;
 545                                 count++;
 546                                 }
 547                         }
 548                 }
 549
 550         ss = text_from_size_abrev(size);
 551         buf = g_strdup_printf(_("%d images, %s"), count, ss);
 552         g_free(ss);
 553         gtk_label_set_text(GTK_LABEL(pw->label_message), buf);
 554         g_free(buf);
 555 }
 556
 557 static void pan_warning_folder(const gchar *path, GtkWidget *parent)
 558 {
 559         gchar *message;
 560
 561         message = g_strdup_printf(_("The pan view does not support the folder \"%s\"."), path);
 562         warning_dialog(_("Folder not supported"), message,
 563                       GQ_ICON_DIALOG_INFO, parent);
 564         g_free(message);
 565 }
 566
 567 static void pan_window_zoom_limit(PanWindow *pw)
 568 {
 569         gdouble min;
 570
 571         switch (pw->size)
 572                 {
 573                 case PAN_IMAGE_SIZE_THUMB_DOTS:
 574                 case PAN_IMAGE_SIZE_THUMB_NONE:
 575                 case PAN_IMAGE_SIZE_THUMB_SMALL:
 576                 case PAN_IMAGE_SIZE_THUMB_NORMAL:
 577 #if 0
 578                         /* easily requires > 512mb ram when window size > 1024x768 and zoom is <= -8 */
 579                         min = -16.0;
 580                         break;
 581 #endif
 582                 case PAN_IMAGE_SIZE_THUMB_LARGE:
 583                         min = -6.0;
 584                         break;
 585                 case PAN_IMAGE_SIZE_10:
 586                 case PAN_IMAGE_SIZE_25:
 587                         min = -4.0;
 588                         break;
 589                 case PAN_IMAGE_SIZE_33:
 590                 case PAN_IMAGE_SIZE_50:
 591                 case PAN_IMAGE_SIZE_100:
 592                 default:
 593                         min = -2.0;
 594                         break;
 595                 }
 596
 597         image_zoom_set_limits(pw->imd, min, 32.0);
 598 }
 599
 600
 601 /*
 602  *-----------------------------------------------------------------------------
 603  * cache
 604  *-----------------------------------------------------------------------------
 605  */
 606
 607 static gint pan_cache_sort_file_cb(gpointer a, gpointer b)
 608 {
 609         auto pca = static_cast<PanCacheData *>(a);
 610         auto pcb = static_cast<PanCacheData *>(b);
 611         return filelist_sort_compare_filedata(pca->fd, pcb->fd);
 612 }
 613 GList *pan_cache_sort(GList *list, SortType method, gboolean ascend, gboolean case_sensitive)
 614 {
 615         return filelist_sort_full(list, method, ascend, case_sensitive, reinterpret_cast<GCompareFunc>(pan_cache_sort_file_cb));
 616 }
 617
 618
 619 static void pan_cache_free(PanWindow *pw)
 620 {
 621         g_list_free_full(pw->cache_list, reinterpret_cast<GDestroyNotify>(pan_cache_data_free));
 622         pw->cache_list = nullptr;
 623
 624         filelist_free(pw->cache_todo);
 625         pw->cache_todo = nullptr;
 626
 627         pw->cache_count = 0;
 628         pw->cache_total = 0;
 629         pw->cache_tick = 0;
 630
 631         cache_loader_free(pw->cache_cl);
 632         pw->cache_cl = nullptr;
 633 }
 634
 635 static void pan_cache_fill(PanWindow *pw, FileData *dir_fd)
 636 {
 637         GList *list;
 638
 639         pan_cache_free(pw);
 640
 641         list = pan_list_tree(dir_fd, SORT_NAME, TRUE, TRUE, pw->ignore_symlinks);
 642         pw->cache_todo = g_list_reverse(list);
 643
 644         pw->cache_total = g_list_length(pw->cache_todo);
 645 }
 646
 647 static void pan_cache_step_done_cb(CacheLoader *cl, gint, gpointer data)
 648 {
 649         auto pw = static_cast<PanWindow *>(data);
 650
 651         if (pw->cache_list)
 652                 {
 653                 PanCacheData *pc;
 654                 pc = static_cast<PanCacheData *>(pw->cache_list->data);
 655
 656                 if (!pc->cd)
 657                         {
 658                         pc->cd = cl->cd;
 659                         cl->cd = nullptr;
 660                         }
 661                 }
 662
 663         cache_loader_free(cl);
 664         pw->cache_cl = nullptr;
 665
 666         pan_layout_update_idle(pw);
 667 }
 668
 669 static gboolean pan_cache_step(PanWindow *pw)
 670 {
 671         FileData *fd;
 672         PanCacheData *pc;
 673         CacheDataType load_mask;
 674
 675         if (!pw->cache_todo) return TRUE;
 676
 677         fd = static_cast<FileData *>(pw->cache_todo->data);
 678         pw->cache_todo = g_list_remove(pw->cache_todo, fd);
 679
 680         pc = g_new0(PanCacheData, 1);
 681         pc->fd = file_data_ref(fd);
 682
 683         pc->cd = nullptr;
 684
 685         pw->cache_list = g_list_prepend(pw->cache_list, pc);
 686
 687         cache_loader_free(pw->cache_cl);
 688
 689         load_mask = CACHE_LOADER_NONE;
 690         if (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE) load_mask = static_cast<CacheDataType>(load_mask | CACHE_LOADER_DIMENSIONS);
 691         if (pw->exif_date_enable) load_mask = static_cast<CacheDataType>(load_mask | CACHE_LOADER_DATE);
 692         pw->cache_cl = cache_loader_new(pc->fd, load_mask,
 693                                         pan_cache_step_done_cb, pw);
 694         return (pw->cache_cl == nullptr);
 695 }
 696
 697 /* This sync date function is optimized for lists with a common sort */
 698 void pan_cache_sync_date(PanWindow *pw, GList *list)
 699 {
 700         GList *haystack;
 701         GList *work;
 702
 703         haystack = g_list_copy(pw->cache_list);
 704
 705         work = list;
 706         while (work)
 707                 {
 708                 FileData *fd;
 709                 GList *needle;
 710
 711                 fd = static_cast<FileData *>(work->data);
 712                 work = work->next;
 713
 714                 needle = haystack;
 715                 while (needle)
 716                         {
 717                         PanCacheData *pc;
 718
 719                         pc = static_cast<PanCacheData *>(needle->data);
 720                         if (pc->fd == fd)
 721                                 {
 722                                 if (pc->cd && pc->cd->have_date && pc->cd->date >= 0)
 723                                         {
 724                                         fd->date = pc->cd->date;
 725                                         }
 726
 727                                 haystack = g_list_delete_link(haystack, needle);
 728                                 needle = nullptr;
 729                                 }
 730                         else
 731                                 {
 732                                 needle = needle->next;
 733                                 }
 734                         }
 735                 }
 736
 737         g_list_free(haystack);
 738 }
 739
 740 /*
 741  *-----------------------------------------------------------------------------
 742  * item grid
 743  *-----------------------------------------------------------------------------
 744  */
 745
 746 static void pan_grid_clear(PanWindow *pw)
 747 {
 748         g_list_free_full(pw->list_grid, [](gpointer data)
 749                 {
 750                 auto pg = static_cast<PanGrid *>(data);
 751                 g_list_free(pg->list);
 752                 g_free(pg);
 753                 });
 754         pw->list_grid = nullptr;
 755
 756         pw->list = g_list_concat(pw->list, pw->list_static);
 757         pw->list_static = nullptr;
 758 }
 759
 760 static void pan_grid_build(PanWindow *pw, gint width, gint height, gint grid_size)
 761 {
 762         GList *work;
 763         gint col;
 764         gint row;
 765         gint cw;
 766         gint ch;
 767         gint l;
 768         gint i;
 769         gint j;
 770
 771         pan_grid_clear(pw);
 772
 773         l = g_list_length(pw->list);
 774
 775         if (l < 1) return;
 776
 777         col = static_cast<gint>(sqrt(static_cast<gdouble>(l) / grid_size) * width / height + 0.999);
 778         col = CLAMP(col, 1, l / grid_size + 1);
 779         row = static_cast<gint>(static_cast<gdouble>(l) / grid_size / col);
 780         if (row < 1) row = 1;
 781
 782         /* limit minimum size of grid so that a tile will always fit regardless of position */
 783         cw = MAX((gint)ceil((gdouble)width / col), PAN_TILE_SIZE * 2);
 784         ch = MAX((gint)ceil((gdouble)height / row), PAN_TILE_SIZE * 2);
 785
 786         row = row * 2 - 1;
 787         col = col * 2 - 1;
 788
 789         DEBUG_1("intersect speedup grid is %dx%d, based on %d average per grid", col, row, grid_size);
 790
 791         for (j = 0; j < row; j++)
 792             for (i = 0; i < col; i++)
 793                 {
 794                 if ((i + 1) * cw / 2 < width && (j + 1) * ch / 2 < height)
 795                         {
 796                         PanGrid *pg;
 797
 798                         pg = g_new0(PanGrid, 1);
 799                         pg->x = i * cw / 2;
 800                         pg->y = j * ch / 2;
 801                         pg->w = cw;
 802                         pg->h = ch;
 803
 804                         pw->list_grid = g_list_prepend(pw->list_grid, pg);
 805
 806                         DEBUG_1("grid section: %d,%d (%dx%d)", pg->x, pg->y, pg->w, pg->h);
 807                         }
 808                 }
 809
 810         work = pw->list;
 811         while (work)
 812                 {
 813                 PanItem *pi;
 814                 GList *grid;
 815
 816                 pi = static_cast<PanItem *>(work->data);
 817                 work = work->next;
 818
 819                 grid = pw->list_grid;
 820                 while (grid)
 821                         {
 822                         PanGrid *pg;
 823                         gint rx;
 824                         gint ry;
 825                         gint rw;
 826                         gint rh;
 827
 828                         pg = static_cast<PanGrid *>(grid->data);
 829                         grid = grid->next;
 830
 831                         if (util_clip_region(pi->x, pi->y, pi->width, pi->height,
 832                                              pg->x, pg->y, pg->w, pg->h,
 833                                              &rx, &ry, &rw, &rh))
 834                                 {
 835                                 pg->list = g_list_prepend(pg->list, pi);
 836                                 }
 837                         }
 838                 }
 839
 840         work = pw->list_grid;
 841         while (work)
 842                 {
 843                 PanGrid *pg;
 844
 845                 pg = static_cast<PanGrid *>(work->data);
 846                 work = work->next;
 847
 848                 pg->list = g_list_reverse(pg->list);
 849                 }
 850
 851         pw->list_static = pw->list;
 852         pw->list = nullptr;
 853 }
 854
 855
 856 /*
 857  *-----------------------------------------------------------------------------
 858  * layout state reset
 859  *-----------------------------------------------------------------------------
 860  */
 861
 862 static void pan_window_items_free(PanWindow *pw)
 863 {
 864         pan_grid_clear(pw);
 865
 866         g_list_free_full(pw->list, reinterpret_cast<GDestroyNotify>(pan_item_free));
 867         pw->list = nullptr;
 868
 869         g_list_free(pw->queue);
 870         pw->queue = nullptr;
 871         pw->queue_pi = nullptr;
 872
 873         image_loader_free(pw->il);
 874         pw->il = nullptr;
 875
 876         thumb_loader_free(pw->tl);
 877         pw->tl = nullptr;
 878
 879         pw->click_pi = nullptr;
 880         pw->search_pi = nullptr;
 881 }
 882
 883
 884 /*
 885  *-----------------------------------------------------------------------------
 886  * layout generation, queries, sizing
 887  *-----------------------------------------------------------------------------
 888  */
 889
 890 static void pan_layout_compute(PanWindow *pw, FileData *dir_fd,
 891                                gint &width, gint &height,
 892                                gint &scroll_x, gint &scroll_y)
 893 {
 894         pan_window_items_free(pw);
 895
 896         switch (pw->size)
 897                 {
 898                 case PAN_IMAGE_SIZE_THUMB_DOTS:
 899                         pw->thumb_size = PAN_THUMB_SIZE_DOTS;
 900                         pw->thumb_gap = PAN_THUMB_GAP_DOTS;
 901                         break;
 902                 case PAN_IMAGE_SIZE_THUMB_NONE:
 903                         pw->thumb_size = PAN_THUMB_SIZE_NONE;
 904                         pw->thumb_gap = PAN_THUMB_GAP_SMALL;
 905                         break;
 906                 case PAN_IMAGE_SIZE_THUMB_SMALL:
 907                         pw->thumb_size = PAN_THUMB_SIZE_SMALL;
 908                         pw->thumb_gap = PAN_THUMB_GAP_SMALL;
 909                         break;
 910                 case PAN_IMAGE_SIZE_THUMB_NORMAL:
 911                 default:
 912                         pw->thumb_size = PAN_THUMB_SIZE_NORMAL;
 913                         pw->thumb_gap = PAN_THUMB_GAP_NORMAL;
 914                         break;
 915                 case PAN_IMAGE_SIZE_THUMB_LARGE:
 916                         pw->thumb_size = PAN_THUMB_SIZE_LARGE;
 917                         pw->thumb_gap = PAN_THUMB_GAP_LARGE;
 918                         break;
 919                 case PAN_IMAGE_SIZE_10:
 920                         pw->image_size = 10;
 921                         pw->thumb_gap = PAN_THUMB_GAP_NORMAL;
 922                         break;
 923                 case PAN_IMAGE_SIZE_25:
 924                         pw->image_size = 25;
 925                         pw->thumb_gap = PAN_THUMB_GAP_NORMAL;
 926                         break;
 927                 case PAN_IMAGE_SIZE_33:
 928                         pw->image_size = 33;
 929                         pw->thumb_gap = PAN_THUMB_GAP_LARGE;
 930                         break;
 931                 case PAN_IMAGE_SIZE_50:
 932                         pw->image_size = 50;
 933                         pw->thumb_gap = PAN_THUMB_GAP_HUGE;
 934                         break;
 935                 case PAN_IMAGE_SIZE_100:
 936                         pw->image_size = 100;
 937                         pw->thumb_gap = PAN_THUMB_GAP_HUGE;
 938                         break;
 939                 }
 940
 941         width = 0;
 942         height = 0;
 943         scroll_x = 0;
 944         scroll_y = 0;
 945
 946         switch (pw->layout)
 947                 {
 948                 case PAN_LAYOUT_GRID:
 949                 default:
 950                         pan_grid_compute(pw, dir_fd, width, height);
 951                         break;
 952                 case PAN_LAYOUT_FOLDERS_LINEAR:
 953                         pan_folder_tree_compute(pw, dir_fd, width, height);
 954                         break;
 955                 case PAN_LAYOUT_FOLDERS_FLOWER:
 956                         pan_flower_compute(pw, dir_fd, width, height, scroll_x, scroll_y);
 957                         break;
 958                 case PAN_LAYOUT_CALENDAR:
 959                         pan_calendar_compute(pw, dir_fd, width, height);
 960                         break;
 961                 case PAN_LAYOUT_TIMELINE:
 962                         pan_timeline_compute(pw, dir_fd, width, height);
 963                         break;
 964                 }
 965
 966         pan_cache_free(pw);
 967
 968         DEBUG_1("computed %d objects", g_list_length(pw->list));
 969 }
 970
 971 static GList *pan_layout_intersect_l(GList *list, GList *item_list,
 972                                      gint x, gint y, gint width, gint height)
 973 {
 974         GList *work;
 975
 976         work = item_list;
 977         while (work)
 978                 {
 979                 PanItem *pi;
 980                 gint rx;
 981                 gint ry;
 982                 gint rw;
 983                 gint rh;
 984
 985                 pi = static_cast<PanItem *>(work->data);
 986                 work = work->next;
 987
 988                 if (util_clip_region(x, y, width, height,
 989                                      pi->x, pi->y, pi->width, pi->height,
 990                                      &rx, &ry, &rw, &rh))
 991                         {
 992                         list = g_list_prepend(list, pi);
 993                         }
 994                 }
 995
 996         return list;
 997 }
 998
 999 GList *pan_layout_intersect(PanWindow *pw, gint x, gint y, gint width, gint height)
1000 {
1001         GList *list = nullptr;
1002         GList *grid;
1003         PanGrid *pg = nullptr;
1004
1005         grid = pw->list_grid;
1006         while (grid && !pg)
1007                 {
1008                 pg = static_cast<PanGrid *>(grid->data);
1009                 grid = grid->next;
1010
1011                 if (x < pg->x || x + width > pg->x + pg->w ||
1012                     y < pg->y || y + height > pg->y + pg->h)
1013                         {
1014                         pg = nullptr;
1015                         }
1016                 }
1017
1018         list = pan_layout_intersect_l(list, pw->list, x, y, width, height);
1019
1020         if (pg)
1021                 {
1022                 list = pan_layout_intersect_l(list, pg->list, x, y, width, height);
1023                 }
1024         else
1025                 {
1026                 list = pan_layout_intersect_l(list, pw->list_static, x, y, width, height);
1027                 }
1028
1029         return list;
1030 }
1031
1032 void pan_layout_resize(PanWindow *pw)
1033 {
1034         gint width = 0;
1035         gint height = 0;
1036         GList *work;
1037         PixbufRenderer *pr;
1038
1039         work = pw->list;
1040         while (work)
1041                 {
1042                 PanItem *pi;
1043
1044                 pi = static_cast<PanItem *>(work->data);
1045                 work = work->next;
1046
1047                 if (width < pi->x + pi->width) width = pi->x + pi->width;
1048                 if (height < pi->y + pi->height) height = pi->y + pi->height;
1049                 }
1050         work = pw->list_static;
1051         while (work)
1052                 {
1053                 PanItem *pi;
1054
1055                 pi = static_cast<PanItem *>(work->data);
1056                 work = work->next;
1057
1058                 if (width < pi->x + pi->width) width = pi->x + pi->width;
1059                 if (height < pi->y + pi->height) height = pi->y + pi->height;
1060                 }
1061
1062         width += PAN_BOX_BORDER * 2;
1063         height += PAN_BOX_BORDER * 2;
1064
1065         pr = PIXBUF_RENDERER(pw->imd->pr);
1066         if (width < pr->window_width) width = pr->window_width;
1067         if (height < pr->window_width) height = pr->window_height;
1068
1069         pixbuf_renderer_set_tiles_size(PIXBUF_RENDERER(pw->imd->pr), width, height);
1070 }
1071
1072 static gint pan_layout_update_idle_cb(gpointer data)
1073 {
1074         auto pw = static_cast<PanWindow *>(data);
1075         gint width;
1076         gint height;
1077         gint scroll_x;
1078         gint scroll_y;
1079
1080         if (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE ||
1081             (pw->exif_date_enable && (pw->layout == PAN_LAYOUT_TIMELINE || pw->layout == PAN_LAYOUT_CALENDAR)))
1082                 {
1083                 if (!pw->cache_list && !pw->cache_todo)
1084                         {
1085                         pan_cache_fill(pw, pw->dir_fd);
1086                         if (pw->cache_todo)
1087                                 {
1088                                 pan_window_message(pw, _("Reading image data..."));
1089                                 return G_SOURCE_CONTINUE;
1090                                 }
1091                         }
1092                 if (pw->cache_todo)
1093                         {
1094                         pw->cache_count++;
1095                         pw->cache_tick++;
1096                         if (pw->cache_count == pw->cache_total)
1097                                 {
1098                                 pan_window_message(pw, _("Sorting..."));
1099                                 }
1100                         else if (pw->cache_tick > 9)
1101                                 {
1102                                 gchar *buf;
1103
1104                                 buf = g_strdup_printf("%s %d / %d", _("Reading image data..."),
1105                                                       pw->cache_count, pw->cache_total);
1106                                 pan_window_message(pw, buf);
1107                                 g_free(buf);
1108
1109                                 pw->cache_tick = 0;
1110                                 }
1111
1112                         if (pan_cache_step(pw)) return G_SOURCE_CONTINUE;
1113
1114                         pw->idle_id = 0;
1115                         return G_SOURCE_REMOVE;
1116                         }
1117                 }
1118
1119         pan_layout_compute(pw, pw->dir_fd, width, height, scroll_x, scroll_y);
1120
1121         pan_window_zoom_limit(pw);
1122
1123         if (width > 0 && height > 0)
1124                 {
1125                 gdouble align;
1126
1127                 DEBUG_1("Canvas size is %d x %d", width, height);
1128
1129                 pan_grid_build(pw, width, height, 1000);
1130
1131                 pixbuf_renderer_set_tiles(PIXBUF_RENDERER(pw->imd->pr), width, height,
1132                                           PAN_TILE_SIZE, PAN_TILE_SIZE, 10,
1133                                           pan_window_request_tile_cb,
1134                                           pan_window_dispose_tile_cb, pw, 1.0);
1135
1136                 if (scroll_x == 0 && scroll_y == 0)
1137                         {
1138                         align = 0.0;
1139                         }
1140                 else
1141                         {
1142                         align = 0.5;
1143                         }
1144                 pixbuf_renderer_scroll_to_point(PIXBUF_RENDERER(pw->imd->pr), scroll_x, scroll_y, align, align);
1145                 }
1146
1147         pan_window_message(pw, nullptr);
1148
1149         pw->idle_id = 0;
1150         return G_SOURCE_REMOVE;
1151 }
1152
1153 static void pan_layout_update_idle(PanWindow *pw)
1154 {
1155         if (!pw->idle_id)
1156                 {
1157                 pw->idle_id = g_idle_add(pan_layout_update_idle_cb, pw);
1158                 }
1159 }
1160
1161 void pan_layout_update(PanWindow *pw)
1162 {
1163         pan_window_message(pw, _("Sorting images..."));
1164         pan_layout_update_idle(pw);
1165 }
1166
1167 static void pan_layout_set_fd(PanWindow *pw, FileData *dir_fd)
1168 {
1169         if (!dir_fd) return;
1170
1171         if (strcmp(dir_fd->path, G_DIR_SEPARATOR_S) == 0)
1172                 {
1173                 pan_warning_folder(dir_fd->path, pw->window);
1174                 return;
1175                 }
1176
1177         file_data_unref(pw->dir_fd);
1178         pw->dir_fd = file_data_ref(dir_fd);
1179
1180         pan_layout_update(pw);
1181 }
1182
1183
1184 /*
1185  *-----------------------------------------------------------------------------
1186  * keyboard handlers
1187  *-----------------------------------------------------------------------------
1188  */
1189
1190 FileData *pan_menu_click_fd(PanWindow *pw)
1191 {
1192         if (pw->click_pi && pw->click_pi->fd) return pw->click_pi->fd;
1193         return nullptr;
1194 }
1195
1196 static gboolean pan_window_key_press_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
1197 {
1198         auto pw = static_cast<PanWindow *>(data);
1199         PixbufRenderer *pr;
1200         FileData *fd;
1201         gboolean stop_signal = FALSE;
1202         GtkWidget *menu;
1203         GtkWidget *imd_widget;
1204         gint x = 0;
1205         gint y = 0;
1206         gint focused;
1207         gint on_entry;
1208
1209         pr = PIXBUF_RENDERER(pw->imd->pr);
1210         fd = pan_menu_click_fd(pw);
1211
1212         imd_widget = gtk_container_get_focus_child(GTK_CONTAINER(pw->imd->widget));
1213         focused = (pw->fs || (imd_widget && gtk_widget_has_focus(imd_widget)));
1214         on_entry = (gtk_widget_has_focus(pw->path_entry) ||
1215                     gtk_widget_has_focus(pw->search_ui->search_entry) ||
1216                     gtk_widget_has_focus(pw->filter_ui->filter_entry));
1217
1218         if (focused)
1219                 {
1220                 stop_signal = TRUE;
1221                 switch (event->keyval)
1222                         {
1223                         case GDK_KEY_Left: case GDK_KEY_KP_Left:
1224                                 x -= 1;
1225                                 break;
1226                         case GDK_KEY_Right: case GDK_KEY_KP_Right:
1227                                 x += 1;
1228                                 break;
1229                         case GDK_KEY_Up: case GDK_KEY_KP_Up:
1230                                 y -= 1;
1231                                 break;
1232                         case GDK_KEY_Down: case GDK_KEY_KP_Down:
1233                                 y += 1;
1234                                 break;
1235                         case GDK_KEY_Page_Up: case GDK_KEY_KP_Page_Up:
1236                                 pixbuf_renderer_scroll(pr, 0, 0 - pr->vis_height / 2);
1237                                 break;
1238                         case GDK_KEY_Page_Down: case GDK_KEY_KP_Page_Down:
1239                                 pixbuf_renderer_scroll(pr, 0, pr->vis_height / 2);
1240                                 break;
1241                         case GDK_KEY_Home: case GDK_KEY_KP_Home:
1242                                 pixbuf_renderer_scroll(pr, 0 - pr->vis_width / 2, 0);
1243                                 break;
1244                         case GDK_KEY_End: case GDK_KEY_KP_End:
1245                                 pixbuf_renderer_scroll(pr, pr->vis_width / 2, 0);
1246                                 break;
1247                         default:
1248                                 stop_signal = FALSE;
1249                                 break;
1250                         }
1251
1252                 if (x != 0 || y!= 0)
1253                         {
1254                         keyboard_scroll_calc(x, y, event);
1255                         pixbuf_renderer_scroll(pr, x, y);
1256                         }
1257                 }
1258
1259         if (stop_signal) return stop_signal;
1260
1261         if (event->state & GDK_CONTROL_MASK)
1262                 {
1263                 stop_signal = TRUE;
1264                 switch (event->keyval)
1265                         {
1266                         case '1':
1267                         case '2':
1268                         case '3':
1269                         case '4':
1270                         case '5':
1271                         case '6':
1272                         case '7':
1273                         case '8':
1274                         case '9':
1275                         case '0':
1276                                 break;
1277                         case 'C': case 'c':
1278                                 if (fd) file_util_copy(fd, nullptr, nullptr, GTK_WIDGET(pr));
1279                                 break;
1280                         case 'M': case 'm':
1281                                 if (fd) file_util_move(fd, nullptr, nullptr, GTK_WIDGET(pr));
1282                                 break;
1283                         case 'R': case 'r':
1284                                 if (fd) file_util_rename(fd, nullptr, GTK_WIDGET(pr));
1285                                 break;
1286                         case 'D': case 'd':
1287                                 if (fd)
1288                                         {
1289                                         options->file_ops.safe_delete_enable = TRUE;
1290                                         file_util_delete(fd, nullptr, GTK_WIDGET(pr));
1291                                         }
1292                                 break;
1293                         case 'F': case 'f':
1294                                 pan_search_toggle_visible(pw, TRUE);
1295                                 break;
1296                         case 'G': case 'g':
1297                                 pan_search_activate(pw);
1298                                 break;
1299                         case 'W': case 'w':
1300                                 pan_window_close(pw);
1301                                 break;
1302                         default:
1303                                 stop_signal = FALSE;
1304                                 break;
1305                         }
1306                 }
1307         else
1308                 {
1309                 stop_signal = TRUE;
1310                 switch (event->keyval)
1311                         {
1312                         case GDK_KEY_Escape:
1313                                 if (pw->fs)
1314                                         {
1315                                         pan_fullscreen_toggle(pw, TRUE);
1316                                         }
1317                                 else
1318                                         {
1319                                         pan_search_toggle_visible(pw, FALSE);
1320                                         }
1321                                 break;
1322                         default:
1323                                 stop_signal = FALSE;
1324                                 break;
1325                         }
1326
1327                 if (stop_signal) return stop_signal;
1328
1329                 // Don't steal characters from entry boxes.
1330                 if (!on_entry)
1331                         {
1332                         stop_signal = TRUE;
1333                         switch (event->keyval)
1334                                 {
1335                                 case '+': case '=': case GDK_KEY_KP_Add:
1336                                         pixbuf_renderer_zoom_adjust(pr, ZOOM_INCREMENT);
1337                                         break;
1338                                 case '-': case GDK_KEY_KP_Subtract:
1339                                         pixbuf_renderer_zoom_adjust(pr, -ZOOM_INCREMENT);
1340                                         break;
1341                                 case 'Z': case 'z': case GDK_KEY_KP_Divide: case '1':
1342                                         pixbuf_renderer_zoom_set(pr, 1.0);
1343                                         break;
1344                                 case '2':
1345                                         pixbuf_renderer_zoom_set(pr, 2.0);
1346                                         break;
1347                                 case '3':
1348                                         pixbuf_renderer_zoom_set(pr, 3.0);
1349                                         break;
1350                                 case '4':
1351                                         pixbuf_renderer_zoom_set(pr, 4.0);
1352                                         break;
1353                                 case '7':
1354                                         pixbuf_renderer_zoom_set(pr, -4.0);
1355                                         break;
1356                                 case '8':
1357                                         pixbuf_renderer_zoom_set(pr, -3.0);
1358                                         break;
1359                                 case '9':
1360                                         pixbuf_renderer_zoom_set(pr, -2.0);
1361                                         break;
1362                                 case 'F': case 'f':
1363                                 case 'V': case 'v':
1364                                 case GDK_KEY_F11:
1365                                         pan_fullscreen_toggle(pw, FALSE);
1366                                         break;
1367                                 case 'I': case 'i':
1368                                         break;
1369                                 case GDK_KEY_Delete: case GDK_KEY_KP_Delete:
1370                                         break;
1371                                 case GDK_KEY_Menu:
1372                                 case GDK_KEY_F10:
1373                                         menu = pan_popup_menu(pw);
1374                                         gtk_menu_popup_at_widget(GTK_MENU(menu), widget, GDK_GRAVITY_SOUTH, GDK_GRAVITY_CENTER, nullptr);
1375
1376                                         break;
1377                                 case '/':
1378                                         pan_search_toggle_visible(pw, TRUE);
1379                                         break;
1380                                         stop_signal = FALSE;
1381                                         break;
1382                                 }
1383                         }
1384                 }
1385         if (!stop_signal && is_help_key(event))
1386                 {
1387                 help_window_show("GuideOtherWindowsPanView.html");
1388                 stop_signal = TRUE;
1389                 }
1390
1391         return stop_signal;
1392 }
1393
1394 /*
1395  *-----------------------------------------------------------------------------
1396  * info popup
1397  *-----------------------------------------------------------------------------
1398  */
1399
1400 static void pan_info_add_exif(PanTextAlignment *ta, FileData *fd)
1401 {
1402         GList *exif_list;
1403         gchar *text;
1404         gchar *title;
1405         gchar *key;
1406
1407         if (!fd) return;
1408
1409         exif_list = bar_pane_exif_list();
1410         while (exif_list)
1411                 {
1412                 title = static_cast<gchar *>(exif_list->data);
1413                 exif_list = exif_list->next;
1414                 key = static_cast<gchar *>(exif_list->data);
1415                 exif_list = exif_list->next;
1416
1417                 text = metadata_read_string(fd, key, METADATA_FORMATTED);
1418                 if (text && text[0] != '\0')
1419                         {
1420                         pan_text_alignment_add(ta, title, text);
1421                         }
1422
1423                 g_free(text);
1424                 }
1425
1426         g_list_free_full(exif_list, g_free);
1427 }
1428
1429
1430 void pan_info_update(PanWindow *pw, PanItem *pi)
1431 {
1432         PanTextAlignment *ta;
1433         PanItem *pbox;
1434         PanItem *p;
1435         gchar *buf;
1436         gint x1;
1437         gint y1;
1438         gint x2;
1439         gint y2;
1440         gint x3;
1441         gint y3;
1442         gint x;
1443         gint y;
1444         gint w;
1445         gint h;
1446
1447         if (pw->click_pi == pi) return;
1448         if (pi && !pi->fd) pi = nullptr;
1449
1450         while ((p = pan_item_find_by_key(pw, PAN_ITEM_NONE, "info"))) pan_item_remove(pw, p);
1451         pw->click_pi = pi;
1452
1453         if (!pi) return;
1454
1455         DEBUG_1("info set to %s", pi->fd->path);
1456
1457         pbox = pan_item_box_new(pw, nullptr, pi->x + pi->width + 4, pi->y, 10, 10,
1458                                 PAN_POPUP_BORDER, PAN_POPUP_COLOR, PAN_POPUP_BORDER_COLOR);
1459         pan_item_set_key(pbox, "info");
1460
1461         if (pi->type == PAN_ITEM_THUMB && pi->pixbuf)
1462                 {
1463                 w = gdk_pixbuf_get_width(pi->pixbuf);
1464                 h = gdk_pixbuf_get_height(pi->pixbuf);
1465
1466                 x1 = pi->x + pi->width - (pi->width - w) / 2 - 8;
1467                 y1 = pi->y + (pi->height - h) / 2 + 8;
1468                 }
1469         else
1470                 {
1471                 x1 = pi->x + pi->width - 8;
1472                 y1 = pi->y + 8;
1473                 }
1474
1475         x2 = pbox->x + 1;
1476         y2 = pbox->y + 36;
1477         x3 = pbox->x + 1;
1478         y3 = pbox->y + 12;
1479         util_clip_triangle(x1, y1, x2, y2, x3, y3,
1480                            x, y, w, h);
1481
1482         p = pan_item_tri_new(pw, nullptr, x, y, w, h,
1483                              x1, y1, x2, y2, x3, y3,
1484                              PAN_POPUP_COLOR);
1485         pan_item_tri_border(p, PAN_BORDER_1 | PAN_BORDER_3, PAN_POPUP_BORDER_COLOR);
1486         pan_item_set_key(p, "info");
1487         pan_item_added(pw, p);
1488
1489         ta = pan_text_alignment_new(pw, pbox->x + PREF_PAD_BORDER, pbox->y + PREF_PAD_BORDER, "info");
1490
1491         pan_text_alignment_add(ta, _("Filename:"), pi->fd->name);
1492         buf = remove_level_from_path(pi->fd->path);
1493         pan_text_alignment_add(ta, _("Location:"), buf);
1494         g_free(buf);
1495         pan_text_alignment_add(ta, _("Date:"), text_from_time(pi->fd->date));
1496         buf = text_from_size(pi->fd->size);
1497         pan_text_alignment_add(ta, _("Size:"), buf);
1498         g_free(buf);
1499
1500         if (pw->info_includes_exif)
1501                 {
1502                 pan_info_add_exif(ta, pi->fd);
1503                 }
1504
1505         pan_text_alignment_calc(ta, pbox);
1506         pan_text_alignment_free(ta);
1507
1508         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
1509         pan_item_added(pw, pbox);
1510
1511         if (pw->info_image_size > PAN_IMAGE_SIZE_THUMB_NONE)
1512                 {
1513                 gint iw;
1514                 gint ih;
1515                 if (image_load_dimensions(pi->fd, &iw, &ih))
1516                         {
1517                         gint scale = 25;
1518
1519                         switch (pw->info_image_size)
1520                                 {
1521                                 case PAN_IMAGE_SIZE_10:
1522                                         scale = 10;
1523                                         break;
1524                                 case PAN_IMAGE_SIZE_25:
1525                                         scale = 25;
1526                                         break;
1527                                 case PAN_IMAGE_SIZE_33:
1528                                         scale = 33;
1529                                         break;
1530                                 case PAN_IMAGE_SIZE_50:
1531                                         scale = 50;
1532                                         break;
1533                                 case PAN_IMAGE_SIZE_100:
1534                                         scale = 100;
1535                                         break;
1536                                 }
1537
1538                         iw = MAX(1, iw * scale / 100);
1539                         ih = MAX(1, ih * scale / 100);
1540
1541                         pbox = pan_item_box_new(pw, nullptr, pbox->x, pbox->y + pbox->height + 8, 10, 10,
1542                                                 PAN_POPUP_BORDER, PAN_POPUP_COLOR, PAN_POPUP_BORDER_COLOR);
1543                         pan_item_set_key(pbox, "info");
1544
1545                         p = pan_item_image_new(pw, file_data_new_group(pi->fd->path),
1546                                                pbox->x + PREF_PAD_BORDER, pbox->y + PREF_PAD_BORDER, iw, ih);
1547                         pan_item_set_key(p, "info");
1548                         pan_item_size_by_item(pbox, p, PREF_PAD_BORDER);
1549
1550                         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
1551                         pan_item_added(pw, pbox);
1552                         }
1553                 }
1554
1555         pan_layout_resize(pw);
1556 }
1557
1558
1559 /*
1560  *-----------------------------------------------------------------------------
1561  * main window
1562  *-----------------------------------------------------------------------------
1563  */
1564
1565 static void button_cb(PixbufRenderer *pr, GdkEventButton *event, gpointer data)
1566 {
1567         auto pw = static_cast<PanWindow *>(data);
1568         PanItem *pi = nullptr;
1569         GtkWidget *menu;
1570         gint rx;
1571         gint ry;
1572
1573         rx = ry = 0;
1574         if (pr->scale)
1575                 {
1576                 rx = static_cast<gdouble>(pr->x_scroll + event->x - pr->x_offset) / pr->scale;
1577                 ry = static_cast<gdouble>(pr->y_scroll + event->y - pr->y_offset) / pr->scale;
1578                 }
1579
1580         pi = pan_item_find_by_coord(pw, PAN_ITEM_BOX, rx, ry, "info");
1581         if (pi && event->button == MOUSE_BUTTON_LEFT)
1582                 {
1583                 pan_info_update(pw, nullptr);
1584                 return;
1585                 }
1586
1587         pi = pan_item_find_by_coord(pw, (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE) ? PAN_ITEM_IMAGE : PAN_ITEM_THUMB,
1588                                     rx, ry, nullptr);
1589
1590         switch (event->button)
1591                 {
1592                 case MOUSE_BUTTON_LEFT:
1593                         pan_info_update(pw, pi);
1594
1595                         if (!pi && pw->layout == PAN_LAYOUT_CALENDAR)
1596                                 {
1597                                 pi = pan_item_find_by_coord(pw, PAN_ITEM_BOX, rx, ry, "day");
1598                                 pan_calendar_update(pw, pi);
1599                                 }
1600                         break;
1601                 case MOUSE_BUTTON_MIDDLE:
1602                         break;
1603                 case MOUSE_BUTTON_RIGHT:
1604                         pan_info_update(pw, pi);
1605                         menu = pan_popup_menu(pw);
1606                         gtk_menu_popup_at_pointer(GTK_MENU(menu), nullptr);
1607                         break;
1608                 default:
1609                         break;
1610                 }
1611 }
1612
1613 static void scroll_cb(PixbufRenderer *pr, GdkEventScroll *event, gpointer)
1614 {
1615         gint w;
1616         gint h;
1617
1618         w = pr->vis_width;
1619         h = pr->vis_height;
1620
1621         if (!(event->state & GDK_SHIFT_MASK))
1622                 {
1623                 w /= 3;
1624                 h /= 3;
1625                 }
1626
1627         if (event->state & GDK_CONTROL_MASK)
1628                 {
1629                 switch (event->direction)
1630                         {
1631                         case GDK_SCROLL_UP:
1632                                 pixbuf_renderer_zoom_adjust_at_point(pr, ZOOM_INCREMENT,
1633                                                                      static_cast<gint>(event->x), static_cast<gint>(event->y));
1634                                 break;
1635                         case GDK_SCROLL_DOWN:
1636                                 pixbuf_renderer_zoom_adjust_at_point(pr, -ZOOM_INCREMENT,
1637                                                                      static_cast<gint>(event->x), static_cast<gint>(event->y));
1638                                 break;
1639                         default:
1640                                 break;
1641                         }
1642                 }
1643         else
1644                 {
1645                 switch (event->direction)
1646                         {
1647                         case GDK_SCROLL_UP:
1648                                 pixbuf_renderer_scroll(pr, 0, -h);
1649                                 break;
1650                         case GDK_SCROLL_DOWN:
1651                                 pixbuf_renderer_scroll(pr, 0, h);
1652                                 break;
1653                         case GDK_SCROLL_LEFT:
1654                                 pixbuf_renderer_scroll(pr, -w, 0);
1655                                 break;
1656                         case GDK_SCROLL_RIGHT:
1657                                 pixbuf_renderer_scroll(pr, w, 0);
1658                                 break;
1659                         default:
1660                                 break;
1661                         }
1662                 }
1663 }
1664
1665 static void pan_image_set_buttons(PanWindow *pw, ImageWindow *imd)
1666 {
1667         g_signal_connect(G_OBJECT(imd->pr), "clicked",
1668                          G_CALLBACK(button_cb), pw);
1669         g_signal_connect(G_OBJECT(imd->pr), "scroll_event",
1670                          G_CALLBACK(scroll_cb), pw);
1671 }
1672
1673 static void pan_fullscreen_stop_func(FullScreenData *, gpointer data)
1674 {
1675         auto pw = static_cast<PanWindow *>(data);
1676
1677         pw->fs = nullptr;
1678         pw->imd = pw->imd_normal;
1679 }
1680
1681 static void pan_fullscreen_toggle(PanWindow *pw, gboolean force_off)
1682 {
1683         if (force_off && !pw->fs) return;
1684
1685         if (pw->fs)
1686                 {
1687                 fullscreen_stop(pw->fs);
1688                 }
1689         else
1690                 {
1691                 pw->fs = fullscreen_start(pw->window, pw->imd, pan_fullscreen_stop_func, pw);
1692                 pan_image_set_buttons(pw, pw->fs->imd);
1693                 g_signal_connect(G_OBJECT(pw->fs->window), "key_press_event",
1694                                  G_CALLBACK(pan_window_key_press_cb), pw);
1695
1696                 pw->imd = pw->fs->imd;
1697                 }
1698 }
1699
1700 static void pan_window_image_zoom_cb(PixbufRenderer *, gdouble, gpointer data)
1701 {
1702         auto pw = static_cast<PanWindow *>(data);
1703         gchar *text;
1704
1705         text = image_zoom_get_as_text(pw->imd);
1706         gtk_label_set_text(GTK_LABEL(pw->label_zoom), text);
1707         g_free(text);
1708 }
1709
1710 static void pan_window_image_scroll_notify_cb(PixbufRenderer *pr, gpointer data)
1711 {
1712         auto pw = static_cast<PanWindow *>(data);
1713         GtkAdjustment *adj;
1714         GdkRectangle rect;
1715         gint width;
1716         gint height;
1717
1718         if (pr->scale == 0.0) return;
1719
1720         pixbuf_renderer_get_visible_rect(pr, &rect);
1721         pixbuf_renderer_get_image_size(pr, &width, &height);
1722
1723         adj = gtk_range_get_adjustment(GTK_RANGE(pw->scrollbar_h));
1724         gtk_adjustment_set_page_size(adj, rect.width);
1725         gtk_adjustment_set_page_increment(adj, gtk_adjustment_get_page_size(adj) / 2.0);
1726         gtk_adjustment_set_step_increment(adj, 48.0 / pr->scale);
1727         gtk_adjustment_set_lower(adj, 0.0);
1728         gtk_adjustment_set_upper(adj, MAX((gdouble)width, 1.0));
1729         gtk_adjustment_set_value(adj, static_cast<gdouble>(rect.x));
1730
1731         pref_signal_block_data(pw->scrollbar_h, pw);
1732         pref_signal_unblock_data(pw->scrollbar_h, pw);
1733
1734         adj = gtk_range_get_adjustment(GTK_RANGE(pw->scrollbar_v));
1735         gtk_adjustment_set_page_size(adj, rect.height);
1736         gtk_adjustment_set_page_increment(adj, gtk_adjustment_get_page_size(adj) / 2.0);
1737         gtk_adjustment_set_step_increment(adj, 48.0 / pr->scale);
1738         gtk_adjustment_set_lower(adj, 0.0);
1739         gtk_adjustment_set_upper(adj, MAX((gdouble)height, 1.0));
1740         gtk_adjustment_set_value(adj, static_cast<gdouble>(rect.y));
1741
1742         pref_signal_block_data(pw->scrollbar_v, pw);
1743         pref_signal_unblock_data(pw->scrollbar_v, pw);
1744 }
1745
1746 static void pan_window_scrollbar_h_value_cb(GtkRange *range, gpointer data)
1747 {
1748         auto pw = static_cast<PanWindow *>(data);
1749         PixbufRenderer *pr;
1750         gint x;
1751
1752         pr = PIXBUF_RENDERER(pw->imd_normal->pr);
1753
1754         if (!pr->scale) return;
1755
1756         x = static_cast<gint>(gtk_range_get_value(range));
1757
1758         pixbuf_renderer_scroll_to_point(pr, x, static_cast<gint>(static_cast<gdouble>(pr->y_scroll) / pr->scale), 0.0, 0.0);
1759 }
1760
1761 static void pan_window_scrollbar_v_value_cb(GtkRange *range, gpointer data)
1762 {
1763         auto pw = static_cast<PanWindow *>(data);
1764         PixbufRenderer *pr;
1765         gint y;
1766
1767         pr = PIXBUF_RENDERER(pw->imd_normal->pr);
1768
1769         if (!pr->scale) return;
1770
1771         y = static_cast<gint>(gtk_range_get_value(range));
1772
1773         pixbuf_renderer_scroll_to_point(pr, static_cast<gint>(static_cast<gdouble>(pr->x_scroll) / pr->scale), y, 0.0, 0.0);
1774 }
1775
1776 static void pan_window_layout_change_cb(GtkWidget *combo, gpointer data)
1777 {
1778         auto pw = static_cast<PanWindow *>(data);
1779
1780         pw->layout = static_cast<PanLayoutType>(gtk_combo_box_get_active(GTK_COMBO_BOX(combo)));
1781         pan_layout_update(pw);
1782 }
1783
1784 static void pan_window_layout_size_cb(GtkWidget *combo, gpointer data)
1785 {
1786         auto pw = static_cast<PanWindow *>(data);
1787
1788         pw->size = static_cast<PanImageSize>(gtk_combo_box_get_active(GTK_COMBO_BOX(combo)));
1789         pan_layout_update(pw);
1790 }
1791
1792 static void pan_window_entry_activate_cb(const gchar *new_text, gpointer data)
1793 {
1794         auto pw = static_cast<PanWindow *>(data);
1795         gchar *path;
1796
1797         path = remove_trailing_slash(new_text);
1798         parse_out_relatives(path);
1799
1800         if (!isdir(path))
1801                 {
1802                 warning_dialog(_("Folder not found"),
1803                                _("The entered path is not a folder"),
1804                                GQ_ICON_DIALOG_WARNING, pw->path_entry);
1805                 }
1806         else
1807                 {
1808                 FileData *dir_fd = file_data_new_dir(path);
1809                 tab_completion_append_to_history(pw->path_entry, path);
1810
1811                 pan_layout_set_fd(pw, dir_fd);
1812                 file_data_unref(dir_fd);
1813                 }
1814
1815         g_free(path);
1816 }
1817
1818 static void pan_window_close(PanWindow *pw)
1819 {
1820         pan_window_list = g_list_remove(pan_window_list, pw);
1821
1822         pref_list_int_set(PAN_PREF_GROUP, PAN_PREF_EXIF_PAN_DATE, pw->exif_date_enable);
1823         pref_list_int_set(PAN_PREF_GROUP, PAN_PREF_INFO_IMAGE, pw->info_image_size);
1824         pref_list_int_set(PAN_PREF_GROUP, PAN_PREF_INFO_EXIF, pw->info_includes_exif);
1825
1826         if (pw->idle_id)
1827                 {
1828                 g_source_remove(pw->idle_id);
1829                 }
1830
1831         pan_fullscreen_toggle(pw, TRUE);
1832         pan_search_ui_destroy(&pw->search_ui);
1833         pan_filter_ui_destroy(&pw->filter_ui);
1834         gq_gtk_widget_destroy(pw->window);
1835
1836         pan_window_items_free(pw);
1837         pan_cache_free(pw);
1838
1839         file_data_unref(pw->dir_fd);
1840
1841         g_free(pw);
1842 }
1843
1844 static gboolean pan_window_delete_cb(GtkWidget *, GdkEventAny *, gpointer data)
1845 {
1846         auto pw = static_cast<PanWindow *>(data);
1847
1848         pan_window_close(pw);
1849         return TRUE;
1850 }
1851
1852 static void pan_window_new_real(FileData *dir_fd)
1853 {
1854         PanWindow *pw;
1855         GdkGeometry geometry;
1856         GtkWidget *box;
1857         GtkWidget *combo;
1858         GtkWidget *frame;
1859         GtkWidget *hbox;
1860         GtkWidget *hbox_imd_widget;
1861         GtkWidget *vbox;
1862         GtkWidget *vbox_imd_widget;
1863
1864         pw = g_new0(PanWindow, 1);
1865
1866         pw->dir_fd = file_data_ref(dir_fd);
1867         pw->layout = PAN_LAYOUT_TIMELINE;
1868         pw->size = PAN_IMAGE_SIZE_THUMB_NORMAL;
1869         pw->thumb_size = PAN_THUMB_SIZE_NORMAL;
1870         pw->thumb_gap = PAN_THUMB_GAP_NORMAL;
1871
1872         if (!pref_list_int_get(PAN_PREF_GROUP, PAN_PREF_EXIF_PAN_DATE, &pw->exif_date_enable))
1873                 {
1874                 pw->exif_date_enable = FALSE;
1875                 }
1876         if (!pref_list_int_get(PAN_PREF_GROUP, PAN_PREF_INFO_IMAGE, &pw->info_image_size))
1877                 {
1878                 pw->info_image_size = PAN_IMAGE_SIZE_THUMB_NONE;
1879                 }
1880         if (!pref_list_int_get(PAN_PREF_GROUP, PAN_PREF_INFO_EXIF, &pw->info_includes_exif))
1881                 {
1882                 pw->info_includes_exif = TRUE;
1883                 }
1884
1885         pw->ignore_symlinks = TRUE;
1886
1887         pw->idle_id = 0;
1888
1889         pw->window = window_new("panview", nullptr, nullptr, _("Pan View"));
1890         DEBUG_NAME(pw->window);
1891
1892         geometry.min_width = DEFAULT_MINIMAL_WINDOW_SIZE;
1893         geometry.min_height = DEFAULT_MINIMAL_WINDOW_SIZE;
1894         gtk_window_set_geometry_hints(GTK_WINDOW(pw->window), nullptr, &geometry, GDK_HINT_MIN_SIZE);
1895
1896         gtk_window_set_resizable(GTK_WINDOW(pw->window), TRUE);
1897         gtk_container_set_border_width(GTK_CONTAINER(pw->window), 0);
1898
1899         vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
1900         DEBUG_NAME(vbox);
1901         gtk_container_add(GTK_CONTAINER(pw->window), vbox);
1902         gtk_widget_show(vbox);
1903
1904         box = pref_box_new(vbox, FALSE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
1905
1906         pref_spacer(box, 0);
1907         pref_label_new(box, _("Location:"));
1908         combo = tab_completion_new_with_history(&pw->path_entry, dir_fd->path, "pan_view_path", -1, pan_window_entry_activate_cb, pw);
1909         gq_gtk_box_pack_start(GTK_BOX(box), combo, TRUE, TRUE, 0);
1910         gtk_widget_show(combo);
1911
1912         combo = gtk_combo_box_text_new();
1913         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Timeline"));
1914         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Calendar"));
1915         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Folders"));
1916         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Folders (flower)"));
1917         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Grid"));
1918
1919         gtk_combo_box_set_active(GTK_COMBO_BOX(combo), pw->layout);
1920         g_signal_connect(G_OBJECT(combo), "changed", G_CALLBACK(pan_window_layout_change_cb), pw);
1921         gq_gtk_box_pack_start(GTK_BOX(box), combo, FALSE, FALSE, 0);
1922         gtk_widget_show(combo);
1923
1924         combo = gtk_combo_box_text_new();
1925         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Dots"));
1926         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("No Images"));
1927         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Small Thumbnails"));
1928         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Normal Thumbnails"));
1929         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("Large Thumbnails"));
1930         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("1:10 (10%)"));
1931         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("1:4 (25%)"));
1932         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("1:3 (33%)"));
1933         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("1:2 (50%)"));
1934         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), _("1:1 (100%)"));
1935
1936         gtk_combo_box_set_active(GTK_COMBO_BOX(combo), pw->size);
1937         g_signal_connect(G_OBJECT(combo), "changed", G_CALLBACK(pan_window_layout_size_cb), pw);
1938         gq_gtk_box_pack_start(GTK_BOX(box), combo, FALSE, FALSE, 0);
1939         gtk_widget_show(combo);
1940
1941         pw->imd = image_new(TRUE);
1942         pw->imd_normal = pw->imd;
1943
1944         g_signal_connect(G_OBJECT(pw->imd->pr), "zoom", G_CALLBACK(pan_window_image_zoom_cb), pw);
1945         g_signal_connect(G_OBJECT(pw->imd->pr), "scroll_notify", G_CALLBACK(pan_window_image_scroll_notify_cb), pw);
1946
1947         vbox_imd_widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
1948         hbox_imd_widget = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
1949
1950         gtk_box_pack_start(GTK_BOX(vbox_imd_widget), pw->imd->widget, true, true, 0);
1951
1952         pw->scrollbar_h = gtk_scrollbar_new(GTK_ORIENTATION_HORIZONTAL, nullptr);
1953         g_signal_connect(G_OBJECT(pw->scrollbar_h), "value_changed",  G_CALLBACK(pan_window_scrollbar_h_value_cb), pw);
1954         gtk_box_pack_start(GTK_BOX(vbox_imd_widget), pw->scrollbar_h, false, false, 0);
1955
1956         gtk_box_pack_start(GTK_BOX(hbox_imd_widget), vbox_imd_widget, true, true, 0);
1957
1958         pw->scrollbar_v = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, nullptr);
1959         g_signal_connect(G_OBJECT(pw->scrollbar_v), "value_changed", G_CALLBACK(pan_window_scrollbar_v_value_cb), pw);
1960         gtk_box_pack_start(GTK_BOX(hbox_imd_widget), pw->scrollbar_v, false, false, 0);
1961
1962         gtk_box_pack_start(GTK_BOX(vbox), hbox_imd_widget, true, true, 0);
1963
1964         gtk_widget_show(GTK_WIDGET(hbox_imd_widget));
1965         gtk_widget_show(GTK_WIDGET(pw->imd->widget));
1966         gtk_widget_show(GTK_WIDGET(vbox));
1967         gtk_widget_show(GTK_WIDGET(vbox_imd_widget));
1968         gtk_widget_show(pw->scrollbar_h);
1969         gtk_widget_show(pw->scrollbar_v);
1970
1971         pan_window_dnd_init(pw);
1972
1973         pan_image_set_buttons(pw, pw->imd);
1974
1975         /* find bar */
1976
1977         pw->search_ui = pan_search_ui_new(pw);
1978         gq_gtk_box_pack_start(GTK_BOX(vbox), pw->search_ui->search_box, FALSE, FALSE, 2);
1979
1980         /* filter bar */
1981         pw->filter_ui = pan_filter_ui_new(pw);
1982         gq_gtk_box_pack_start(GTK_BOX(vbox), pw->filter_ui->filter_box, FALSE, FALSE, 2);
1983
1984         /* status bar */
1985
1986         box = pref_box_new(vbox, FALSE, GTK_ORIENTATION_HORIZONTAL, 0);
1987
1988         frame = gtk_frame_new(nullptr);
1989         DEBUG_NAME(frame);
1990         gq_gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_IN);
1991         gtk_widget_set_size_request(frame, ZOOM_LABEL_WIDTH, -1);
1992         gq_gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
1993         gtk_widget_show(frame);
1994
1995         hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
1996         gtk_container_add(GTK_CONTAINER(frame), hbox);
1997         gtk_widget_show(hbox);
1998
1999         pref_spacer(hbox, 0);
2000         pw->label_message = pref_label_new(hbox, "");
2001
2002         frame = gtk_frame_new(nullptr);
2003         DEBUG_NAME(frame);
2004         gq_gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_IN);
2005         gtk_widget_set_size_request(frame, ZOOM_LABEL_WIDTH, -1);
2006         gq_gtk_box_pack_end(GTK_BOX(box), frame, FALSE, FALSE, 0);
2007         gtk_widget_show(frame);
2008
2009         pw->label_zoom = gtk_label_new("");
2010         gtk_container_add(GTK_CONTAINER(frame), pw->label_zoom);
2011         gtk_widget_show(pw->label_zoom);
2012
2013         // Add the "Find" button to the status bar area.
2014         gq_gtk_box_pack_end(GTK_BOX(box), pw->search_ui->search_button, FALSE, FALSE, 0);
2015         gtk_widget_show(pw->search_ui->search_button);
2016
2017         // Add the "Filter" button to the status bar area.
2018         gq_gtk_box_pack_end(GTK_BOX(box), pw->filter_ui->filter_button, FALSE, FALSE, 0);
2019         gtk_widget_show(pw->filter_ui->filter_button);
2020
2021         g_signal_connect(G_OBJECT(pw->window), "delete_event", G_CALLBACK(pan_window_delete_cb), pw);
2022         g_signal_connect(G_OBJECT(pw->window), "key_press_event", G_CALLBACK(pan_window_key_press_cb), pw);
2023
2024         gtk_window_set_default_size(GTK_WINDOW(pw->window), PAN_WINDOW_DEFAULT_WIDTH, PAN_WINDOW_DEFAULT_HEIGHT);
2025
2026         pan_layout_update(pw);
2027
2028         gtk_widget_grab_focus(GTK_WIDGET(pw->imd->widget));
2029         gtk_widget_show(pw->window);
2030
2031         pan_window_list = g_list_append(pan_window_list, pw);
2032 }
2033
2034 /*
2035  *-----------------------------------------------------------------------------
2036  * performance warnings
2037  *-----------------------------------------------------------------------------
2038  */
2039
2040 static void pan_warning_ok_cb(GenericDialog *gd, gpointer data)
2041 {
2042         auto dir_fd = static_cast<FileData *>(data);
2043
2044         generic_dialog_close(gd);
2045
2046         pan_window_new_real(dir_fd);
2047         file_data_unref(dir_fd);
2048 }
2049
2050 static void pan_warning_hide_cb(GtkWidget *button, gpointer)
2051 {
2052         gboolean hide_dlg;
2053
2054         hide_dlg = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
2055         pref_list_int_set(PAN_PREF_GROUP, PAN_PREF_HIDE_WARNING, hide_dlg);
2056 }
2057
2058 static gboolean pan_warning(FileData *dir_fd)
2059 {
2060         GenericDialog *gd;
2061         GtkWidget *box;
2062         GtkWidget *group;
2063         GtkWidget *checkbox;
2064         GtkWidget *ct_button;
2065         gboolean hide_dlg;
2066
2067         if (dir_fd && strcmp(dir_fd->path, G_DIR_SEPARATOR_S) == 0)
2068                 {
2069                 pan_warning_folder(dir_fd->path, nullptr);
2070                 return TRUE;
2071                 }
2072
2073         if (options->thumbnails.enable_caching &&
2074             options->thumbnails.spec_standard) return FALSE;
2075
2076         if (!pref_list_int_get(PAN_PREF_GROUP, PAN_PREF_HIDE_WARNING, &hide_dlg)) hide_dlg = FALSE;
2077         if (hide_dlg) return FALSE;
2078
2079         gd = generic_dialog_new(_("Pan View Performance"), "pan_view_warning", nullptr, FALSE,
2080                                 nullptr, nullptr);
2081         gd->data = file_data_ref(dir_fd);
2082         generic_dialog_add_button(gd, GQ_ICON_OK, "OK",
2083                                   pan_warning_ok_cb, TRUE);
2084
2085         box = generic_dialog_add_message(gd, GQ_ICON_DIALOG_INFO,
2086                                          _("Pan view performance may be poor."),
2087                                          _("To improve the performance of thumbnails in\npan view the following options can be enabled.\n\nNote that both options must be enabled to\nnotice a change in performance."), TRUE);
2088
2089         group = pref_box_new(box, FALSE, GTK_ORIENTATION_HORIZONTAL, 0);
2090         pref_spacer(group, PREF_PAD_INDENT);
2091         group = pref_box_new(group, TRUE, GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
2092
2093         ct_button = pref_checkbox_new_int(group, _("Cache thumbnails"),
2094                                           options->thumbnails.enable_caching, &options->thumbnails.enable_caching);
2095         checkbox = pref_checkbox_new_int(group, _("Use shared thumbnail cache"),
2096                                        options->thumbnails.spec_standard, &options->thumbnails.spec_standard);
2097         pref_checkbox_link_sensitivity(ct_button, checkbox);
2098
2099         pref_line(box, 0);
2100
2101         pref_checkbox_new(box, _("Do not show this dialog again"), hide_dlg,
2102                           G_CALLBACK(pan_warning_hide_cb), nullptr);
2103
2104         gtk_widget_show(gd->dialog);
2105
2106         return TRUE;
2107 }
2108
2109
2110 /*
2111  *-----------------------------------------------------------------------------
2112  * entry point
2113  *-----------------------------------------------------------------------------
2114  */
2115
2116 void pan_window_new(FileData *dir_fd)
2117 {
2118         if (pan_warning(dir_fd)) return;
2119
2120         pan_window_new_real(dir_fd);
2121 }
2122
2123
2124 /*
2125  *-----------------------------------------------------------------------------
2126  * menus
2127  *-----------------------------------------------------------------------------
2128  */
2129
2130 #define INFO_IMAGE_SIZE_KEY "image_size_data"
2131
2132
2133 static void pan_new_window_cb(GtkWidget *, gpointer data)
2134 {
2135         auto pw = static_cast<PanWindow *>(data);
2136         FileData *fd;
2137
2138         fd = pan_menu_click_fd(pw);
2139         if (fd)
2140                 {
2141                 pan_fullscreen_toggle(pw, TRUE);
2142                 view_window_new(fd);
2143                 }
2144 }
2145
2146 static void pan_go_to_original_cb(GtkWidget *, gpointer data)
2147 {
2148         LayoutWindow *lw = nullptr;
2149         auto pw = static_cast<PanWindow *>(data);
2150         FileData *fd;
2151
2152         if (!layout_valid(&lw)) return;
2153
2154         fd = pan_menu_click_fd(pw);
2155         if (fd)
2156                 {
2157                 layout_set_fd(lw, fd);
2158                 }
2159 }
2160
2161 static void pan_edit_cb(GtkWidget *widget, gpointer data)
2162 {
2163         PanWindow *pw;
2164         FileData *fd;
2165         auto key = static_cast<const gchar *>(data);
2166
2167         pw = static_cast<PanWindow *>(submenu_item_get_data(widget));
2168         if (!pw) return;
2169
2170         fd = pan_menu_click_fd(pw);
2171         if (fd)
2172                 {
2173                 if (!editor_window_flag_set(key))
2174                         {
2175                         pan_fullscreen_toggle(pw, TRUE);
2176                         }
2177                 file_util_start_editor_from_file(key, fd, pw->imd->widget);
2178                 }
2179 }
2180
2181 static void pan_zoom_in_cb(GtkWidget *, gpointer data)
2182 {
2183         auto pw = static_cast<PanWindow *>(data);
2184
2185         image_zoom_adjust(pw->imd, ZOOM_INCREMENT);
2186 }
2187
2188 static void pan_zoom_out_cb(GtkWidget *, gpointer data)
2189 {
2190         auto pw = static_cast<PanWindow *>(data);
2191
2192         image_zoom_adjust(pw->imd, -ZOOM_INCREMENT);
2193 }
2194
2195 static void pan_zoom_1_1_cb(GtkWidget *, gpointer data)
2196 {
2197         auto pw = static_cast<PanWindow *>(data);
2198
2199         image_zoom_set(pw->imd, 1.0);
2200 }
2201
2202 static void pan_copy_cb(GtkWidget *, gpointer data)
2203 {
2204         auto pw = static_cast<PanWindow *>(data);
2205         FileData *fd;
2206
2207         fd = pan_menu_click_fd(pw);
2208         if (fd) file_util_copy(fd, nullptr, nullptr, pw->imd->widget);
2209 }
2210
2211 static void pan_move_cb(GtkWidget *, gpointer data)
2212 {
2213         auto pw = static_cast<PanWindow *>(data);
2214         FileData *fd;
2215
2216         fd = pan_menu_click_fd(pw);
2217         if (fd) file_util_move(fd, nullptr, nullptr, pw->imd->widget);
2218 }
2219
2220 static void pan_rename_cb(GtkWidget *, gpointer data)
2221 {
2222         auto pw = static_cast<PanWindow *>(data);
2223         FileData *fd;
2224
2225         fd = pan_menu_click_fd(pw);
2226         if (fd) file_util_rename(fd, nullptr, pw->imd->widget);
2227 }
2228
2229 static void pan_delete_cb(GtkWidget *, gpointer data)
2230 {
2231         auto pw = static_cast<PanWindow *>(data);
2232         FileData *fd;
2233
2234         fd = pan_menu_click_fd(pw);
2235         if (fd)
2236                 {
2237                 options->file_ops.safe_delete_enable = FALSE;
2238                 file_util_delete(fd, nullptr, pw->imd->widget);
2239                 }
2240 }
2241
2242 static void pan_move_to_trash_cb(GtkWidget *, gpointer data)
2243 {
2244         auto pw = static_cast<PanWindow *>(data);
2245         FileData *fd;
2246
2247         fd = pan_menu_click_fd(pw);
2248         if (fd)
2249                 {
2250                 options->file_ops.safe_delete_enable = TRUE;
2251                 file_util_delete(fd, nullptr, pw->imd->widget);
2252                 }
2253 }
2254
2255 static void pan_copy_path_cb(GtkWidget *, gpointer data)
2256 {
2257         auto pw = static_cast<PanWindow *>(data);
2258         FileData *fd;
2259
2260         fd = pan_menu_click_fd(pw);
2261         if (fd) file_util_copy_path_to_clipboard(fd, TRUE, TRUE);
2262 }
2263
2264 static void pan_copy_path_unquoted_cb(GtkWidget *, gpointer data)
2265 {
2266         auto pw = static_cast<PanWindow *>(data);
2267         FileData *fd;
2268
2269         fd = pan_menu_click_fd(pw);
2270         if (fd) file_util_copy_path_to_clipboard(fd, FALSE, TRUE);
2271 }
2272
2273 static void pan_exif_date_toggle_cb(GtkWidget *widget, gpointer data)
2274 {
2275         auto pw = static_cast<PanWindow *>(data);
2276
2277         pw->exif_date_enable = gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget));
2278         pan_layout_update(pw);
2279 }
2280
2281 static void pan_info_toggle_exif_cb(GtkWidget *widget, gpointer data)
2282 {
2283         auto pw = static_cast<PanWindow *>(data);
2284
2285         pw->info_includes_exif = gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(widget));
2286         /** @FIXME sync info now */
2287 }
2288
2289 static void pan_info_toggle_image_cb(GtkWidget *widget, gpointer data)
2290 {
2291         auto pw = static_cast<PanWindow *>(data);
2292
2293         pw->info_image_size = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(widget), INFO_IMAGE_SIZE_KEY));
2294         /** @FIXME sync info now */
2295 }
2296
2297 static void pan_fullscreen_cb(GtkWidget *, gpointer data)
2298 {
2299         auto pw = static_cast<PanWindow *>(data);
2300
2301         pan_fullscreen_toggle(pw, FALSE);
2302 }
2303
2304 static void pan_close_cb(GtkWidget *, gpointer data)
2305 {
2306         auto pw = static_cast<PanWindow *>(data);
2307
2308         pan_window_close(pw);
2309 }
2310
2311 static void pan_popup_menu_destroy_cb(GtkWidget *, gpointer data)
2312 {
2313         auto editmenu_fd_list = static_cast<GList *>(data);
2314
2315         filelist_free(editmenu_fd_list);
2316 }
2317
2318 static void pan_play_cb(GtkWidget *, gpointer data)
2319 {
2320         auto pw = static_cast<PanWindow *>(data);
2321
2322         start_editor_from_file(options->image_l_click_video_editor, pw->click_pi->fd);
2323 }
2324
2325 static GList *pan_view_get_fd_list(PanWindow *pw)
2326 {
2327         GList *list = nullptr;
2328         FileData *fd = pan_menu_click_fd(pw);
2329
2330         if (fd) list = g_list_prepend(filelist_copy(fd->sidecar_files), file_data_ref(fd));
2331
2332         return list;
2333 }
2334
2335 /**
2336  * @brief Add file selection list to a collection
2337  * @param[in] widget
2338  * @param[in] data Index to the collection list menu item selected, or -1 for new collection
2339  *
2340  *
2341  */
2342 static void pan_pop_menu_collections_cb(GtkWidget *widget, gpointer data)
2343 {
2344         PanWindow *pw;
2345         GList *selection_list = nullptr;
2346
2347         pw = static_cast<PanWindow *>(submenu_item_get_data(widget));
2348         selection_list = g_list_append(selection_list, pan_menu_click_fd(pw));
2349         pop_menu_collections(selection_list, data);
2350
2351         filelist_free(selection_list);
2352 }
2353
2354 static GtkWidget *pan_popup_menu(PanWindow *pw)
2355 {
2356         GtkWidget *menu;
2357         GtkWidget *submenu;
2358         GtkWidget *item;
2359         gboolean active;
2360         gboolean video;
2361         GList *editmenu_fd_list;
2362         GtkAccelGroup *accel_group;
2363
2364         active = (pw->click_pi != nullptr);
2365         video = (active && pw->click_pi->fd && pw->click_pi->fd->format_class == FORMAT_CLASS_VIDEO);
2366
2367         menu = popup_menu_short_lived();
2368         accel_group = gtk_accel_group_new();
2369         gtk_menu_set_accel_group(GTK_MENU(menu), accel_group);
2370
2371         g_object_set_data(G_OBJECT(menu), "window_keys", pan_view_window_keys);
2372         g_object_set_data(G_OBJECT(menu), "accel_group", accel_group);
2373
2374         menu_item_add_icon_sensitive(menu, _("_Play"), GQ_ICON_PLAY, video,
2375                             G_CALLBACK(pan_play_cb), pw);
2376         menu_item_add_divider(menu);
2377
2378         menu_item_add_icon(menu, _("Zoom _in"), GQ_ICON_ZOOM_IN,
2379                             G_CALLBACK(pan_zoom_in_cb), pw);
2380         menu_item_add_icon(menu, _("Zoom _out"), GQ_ICON_ZOOM_OUT,
2381                             G_CALLBACK(pan_zoom_out_cb), pw);
2382         menu_item_add_icon(menu, _("Zoom _1:1"), GQ_ICON_ZOOM_100,
2383                             G_CALLBACK(pan_zoom_1_1_cb), pw);
2384         menu_item_add_divider(menu);
2385
2386         editmenu_fd_list = pan_view_get_fd_list(pw);
2387         g_signal_connect(G_OBJECT(menu), "destroy",
2388                          G_CALLBACK(pan_popup_menu_destroy_cb), editmenu_fd_list);
2389
2390         submenu_add_edit(menu, &item, G_CALLBACK(pan_edit_cb), pw, editmenu_fd_list);
2391         gtk_widget_set_sensitive(item, active);
2392
2393         menu_item_add_icon_sensitive(menu, _("View in _new window"), GQ_ICON_NEW, active,
2394                                       G_CALLBACK(pan_new_window_cb), pw);
2395         menu_item_add_icon(menu, _("Go to original"), GQ_ICON_FIND,
2396                         G_CALLBACK(pan_go_to_original_cb), pw);
2397
2398         menu_item_add_divider(menu);
2399         menu_item_add_icon_sensitive(menu, _("_Copy..."), GQ_ICON_COPY, active,
2400                                       G_CALLBACK(pan_copy_cb), pw);
2401         menu_item_add_sensitive(menu, _("_Move..."), active,
2402                                 G_CALLBACK(pan_move_cb), pw);
2403         menu_item_add_sensitive(menu, _("_Rename..."), active,
2404                                 G_CALLBACK(pan_rename_cb), pw);
2405         menu_item_add_sensitive(menu, _("_Copy to clipboard"), active,
2406                                 G_CALLBACK(pan_copy_path_cb), pw);
2407         menu_item_add_sensitive(menu, _("_Copy to clipboard (unquoted)"), active,
2408                                 G_CALLBACK(pan_copy_path_unquoted_cb), pw);
2409
2410         menu_item_add_divider(menu);
2411         menu_item_add_icon_sensitive(menu,
2412                                 options->file_ops.confirm_move_to_trash ? _("Move to Trash...") :
2413                                         _("Move to Trash"), GQ_ICON_DELETE, active,
2414                                                 G_CALLBACK(pan_move_to_trash_cb), pw);
2415         menu_item_add_icon_sensitive(menu,
2416                                 options->file_ops.confirm_delete ? _("_Delete...") :
2417                                         _("_Delete"), GQ_ICON_DELETE_SHRED, active,
2418                                                 G_CALLBACK(pan_delete_cb), pw);
2419
2420         menu_item_add_divider(menu);
2421
2422         submenu = submenu_add_collections(menu, &item,
2423                                 G_CALLBACK(pan_pop_menu_collections_cb), pw);
2424         gtk_widget_set_sensitive(item, TRUE);
2425         menu_item_add_divider(menu);
2426
2427
2428         item = menu_item_add_check(menu, _("Sort by E_xif date"), pw->exif_date_enable,
2429                                    G_CALLBACK(pan_exif_date_toggle_cb), pw);
2430         gtk_widget_set_sensitive(item, (pw->layout == PAN_LAYOUT_TIMELINE || pw->layout == PAN_LAYOUT_CALENDAR));
2431
2432         menu_item_add_divider(menu);
2433
2434         menu_item_add_check(menu, _("_Show Exif information"), pw->info_includes_exif,
2435                             G_CALLBACK(pan_info_toggle_exif_cb), pw);
2436         item = menu_item_add(menu, _("Show im_age"), nullptr, nullptr);
2437         submenu = gtk_menu_new();
2438         gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
2439
2440         item = menu_item_add_check(submenu, _("_None"), (pw->info_image_size == PAN_IMAGE_SIZE_THUMB_NONE),
2441                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2442         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_THUMB_NONE));
2443
2444         item = menu_item_add_check(submenu, _("_Full size"), (pw->info_image_size == PAN_IMAGE_SIZE_100),
2445                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2446         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_100));
2447
2448         item = menu_item_add_check(submenu, _("1:2 (50%)"), (pw->info_image_size == PAN_IMAGE_SIZE_50),
2449                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2450         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_50));
2451
2452         item = menu_item_add_check(submenu, _("1:3 (33%)"), (pw->info_image_size == PAN_IMAGE_SIZE_33),
2453                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2454         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_33));
2455
2456         item = menu_item_add_check(submenu, _("1:4 (25%)"), (pw->info_image_size == PAN_IMAGE_SIZE_25),
2457                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2458         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_25));
2459
2460         item = menu_item_add_check(submenu, _("1:10 (10%)"), (pw->info_image_size == PAN_IMAGE_SIZE_10),
2461                                    G_CALLBACK(pan_info_toggle_image_cb), pw);
2462         g_object_set_data(G_OBJECT(item), INFO_IMAGE_SIZE_KEY, GINT_TO_POINTER(PAN_IMAGE_SIZE_10));
2463
2464
2465
2466         menu_item_add_divider(menu);
2467
2468         if (pw->fs)
2469                 {
2470                 menu_item_add_icon(menu, _("Exit _full screen"), GQ_ICON_LEAVE_FULLSCREEN, G_CALLBACK(pan_fullscreen_cb), pw);
2471                 }
2472         else
2473                 {
2474                 menu_item_add_icon(menu, _("_Full screen"), GQ_ICON_FULLSCREEN, G_CALLBACK(pan_fullscreen_cb), pw);
2475                 }
2476
2477         menu_item_add_divider(menu);
2478         menu_item_add_icon(menu, _("C_lose window"), GQ_ICON_CLOSE, G_CALLBACK(pan_close_cb), pw);
2479
2480         return menu;
2481 }
2482
2483
2484 /*
2485  *-----------------------------------------------------------------------------
2486  * drag and drop
2487  *-----------------------------------------------------------------------------
2488  */
2489
2490 static void pan_window_get_dnd_data(GtkWidget *, GdkDragContext *context,
2491                                     gint, gint,
2492                                     GtkSelectionData *selection_data, guint info,
2493                                     guint, gpointer data)
2494 {
2495         auto pw = static_cast<PanWindow *>(data);
2496
2497         if (gtk_drag_get_source_widget(context) == pw->imd->pr) return;
2498
2499         if (info == TARGET_URI_LIST)
2500                 {
2501                 GList *list;
2502
2503                 list = uri_filelist_from_gtk_selection_data(selection_data);
2504                 if (list && isdir((static_cast<FileData *>(list->data))->path))
2505                         {
2506                         auto fd = static_cast<FileData *>(list->data);
2507
2508                         pan_layout_set_fd(pw, fd);
2509                         }
2510
2511                 filelist_free(list);
2512                 }
2513 }
2514
2515 static void pan_window_set_dnd_data(GtkWidget *, GdkDragContext *,
2516                                     GtkSelectionData *selection_data, guint,
2517                                     guint, gpointer data)
2518 {
2519         auto pw = static_cast<PanWindow *>(data);
2520         FileData *fd;
2521
2522         fd = pan_menu_click_fd(pw);
2523         if (fd)
2524                 {
2525                 GList *list;
2526
2527                 list = g_list_append(nullptr, fd);
2528                 uri_selection_data_set_uris_from_filelist(selection_data, list);
2529                 g_list_free(list);
2530                 }
2531         else
2532                 {
2533                 gtk_selection_data_set(selection_data, gtk_selection_data_get_target(selection_data),
2534                                        8, nullptr, 0);
2535                 }
2536 }
2537
2538 static void pan_window_dnd_init(PanWindow *pw)
2539 {
2540         GtkWidget *widget;
2541
2542         widget = pw->imd->pr;
2543
2544         gtk_drag_source_set(widget, GDK_BUTTON2_MASK,
2545                             dnd_file_drag_types, dnd_file_drag_types_count,
2546                             static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK));
2547         g_signal_connect(G_OBJECT(widget), "drag_data_get",
2548                          G_CALLBACK(pan_window_set_dnd_data), pw);
2549
2550         gtk_drag_dest_set(widget,
2551                           static_cast<GtkDestDefaults>(GTK_DEST_DEFAULT_MOTION | GTK_DEST_DEFAULT_DROP),
2552                           dnd_file_drop_types, dnd_file_drop_types_count,
2553                           static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK));
2554         g_signal_connect(G_OBJECT(widget), "drag_data_received",
2555                          G_CALLBACK(pan_window_get_dnd_data), pw);
2556 }
2557
2558 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */