src/advanced-exif.cc

   1 /*
   2  * Copyright (C) 2004 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 "main.h"
  23 #include "advanced-exif.h"
  24
  25 #include "exif.h"
  26 #include "filedata.h"
  27 #include "history-list.h"
  28 #include "layout-util.h"
  29 #include "misc.h"
  30 #include "ui-misc.h"
  31 #include "window.h"
  32 #include "dnd.h"
  33
  34 enum {
  35         ADVANCED_EXIF_DATA_COLUMN_WIDTH = 200
  36 };
  37
  38 /*
  39  *-------------------------------------------------------------------
  40  * EXIF window
  41  *-------------------------------------------------------------------
  42  */
  43
  44 struct ExifWin
  45 {
  46         GtkWidget *window;
  47         GtkWidget *vbox;
  48         GtkWidget *scrolled;
  49         GtkWidget *listview;
  50         GtkWidget *label_file_name;
  51
  52         FileData *fd;
  53 };
  54
  55 enum {
  56         EXIF_ADVCOL_ENABLED = 0,
  57         EXIF_ADVCOL_TAG,
  58         EXIF_ADVCOL_NAME,
  59         EXIF_ADVCOL_VALUE,
  60         EXIF_ADVCOL_FORMAT,
  61         EXIF_ADVCOL_ELEMENTS,
  62         EXIF_ADVCOL_DESCRIPTION,
  63         EXIF_ADVCOL_COUNT
  64 };
  65
  66 gint display_order [6] = {
  67         EXIF_ADVCOL_DESCRIPTION,
  68         EXIF_ADVCOL_VALUE,
  69         EXIF_ADVCOL_NAME,
  70         EXIF_ADVCOL_TAG,
  71         EXIF_ADVCOL_FORMAT,
  72         EXIF_ADVCOL_ELEMENTS
  73 };
  74
  75 static gboolean advanced_exif_row_enabled(const gchar *name)
  76 {
  77         GList *list;
  78
  79         if (!name) return FALSE;
  80
  81         list = history_list_get_by_key("exif_extras");
  82         while (list)
  83                 {
  84                 if (strcmp(name, static_cast<gchar *>(list->data)) == 0) return TRUE;
  85                 list = list->next;
  86         }
  87
  88         return FALSE;
  89 }
  90
  91 static void advanced_exif_update(ExifWin *ew)
  92 {
  93         ExifData *exif;
  94
  95         GtkListStore *store;
  96         GtkTreeIter iter;
  97         ExifData *exif_original;
  98         ExifItem *item;
  99
 100         exif = exif_read_fd(ew->fd);
 101
 102         gtk_widget_set_sensitive(ew->scrolled, !!exif);
 103
 104         if (!exif) return;
 105
 106         exif_original = exif_get_original(exif);
 107
 108         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 109         gtk_list_store_clear(store);
 110
 111         item = exif_get_first_item(exif_original);
 112         while (item)
 113                 {
 114                 gchar *tag;
 115                 gchar *tag_name;
 116                 gchar *text;
 117                 gchar *utf8_text;
 118                 const gchar *format;
 119                 gchar *elements;
 120                 gchar *description;
 121
 122                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 123                 tag_name = exif_item_get_tag_name(item);
 124                 format = exif_item_get_format_name(item, TRUE);
 125                 text = exif_item_get_data_as_text(item, exif);
 126                 utf8_text = utf8_validate_or_convert(text);
 127                 g_free(text);
 128                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 129                 description = exif_item_get_description(item);
 130                 if (!description || *description == '\0')
 131                         {
 132                         g_free(description);
 133                         description = g_strdup(tag_name);
 134                         }
 135
 136                 gtk_list_store_append(store, &iter);
 137                 gtk_list_store_set(store, &iter,
 138                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 139                                 EXIF_ADVCOL_TAG, tag,
 140                                 EXIF_ADVCOL_NAME, tag_name,
 141                                 EXIF_ADVCOL_VALUE, utf8_text,
 142                                 EXIF_ADVCOL_FORMAT, format,
 143                                 EXIF_ADVCOL_ELEMENTS, elements,
 144                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 145                 g_free(tag);
 146                 g_free(utf8_text);
 147                 g_free(elements);
 148                 g_free(description);
 149                 g_free(tag_name);
 150                 item = exif_get_next_item(exif_original);
 151                 }
 152         exif_free_fd(ew->fd, exif);
 153
 154 }
 155
 156 static void advanced_exif_clear(ExifWin *ew)
 157 {
 158         GtkListStore *store;
 159
 160         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 161         gtk_list_store_clear(store);
 162 }
 163
 164 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 165 {
 166         ExifWin *ew;
 167
 168         ew = static_cast<ExifWin *>(g_object_get_data(G_OBJECT(window), "advanced_exif_data"));
 169         if (!ew) return;
 170
 171         /* store this, advanced view toggle needs to reload data */
 172         file_data_unref(ew->fd);
 173         ew->fd = file_data_ref(fd);
 174
 175         gtk_label_set_text(GTK_LABEL(ew->label_file_name), (ew->fd) ? ew->fd->path : "");
 176
 177         advanced_exif_clear(ew);
 178         advanced_exif_update(ew);
 179 }
 180
 181 static GtkTargetEntry advanced_exif_drag_types[] = {
 182         { const_cast<gchar *>("text/plain"), 0, TARGET_TEXT_PLAIN }
 183 };
 184 static gint n_exif_drag_types = 1;
 185
 186
 187 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *,
 188                                   GtkSelectionData *selection_data,
 189                                   guint, guint, gpointer)
 190 {
 191         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 192         GtkTreeIter iter;
 193
 194         if (gtk_tree_selection_get_selected(sel, nullptr, &iter))
 195                 {
 196                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 197                 gchar *key;
 198
 199                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 200                 gtk_selection_data_set_text(selection_data, key, -1);
 201                 g_free(key);
 202                 }
 203
 204 }
 205
 206
 207 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer)
 208 {
 209         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 210         GtkTreeIter iter;
 211
 212         if (gtk_tree_selection_get_selected(sel, nullptr, &iter))
 213                 {
 214                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 215                 gchar *key;
 216
 217                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 218
 219                 dnd_set_drag_label(listview, context, key);
 220                 g_free(key);
 221                 }
 222 }
 223
 224
 225
 226 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gboolean sizable)
 227 {
 228         GtkTreeViewColumn *column;
 229         GtkCellRenderer *renderer;
 230
 231         column = gtk_tree_view_column_new();
 232         gtk_tree_view_column_set_title(column, title);
 233
 234         if (sizable)
 235                 {
 236                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 237                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 238                 }
 239         else
 240                 {
 241                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 242                 }
 243
 244         gtk_tree_view_column_set_resizable(column, TRUE);
 245         gtk_tree_view_column_set_sort_column_id(column, n);
 246
 247         renderer = gtk_cell_renderer_text_new();
 248         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 249         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 250         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 251 }
 252
 253 static void advanced_exif_window_get_geometry(ExifWin *ew)
 254 {
 255         GdkWindow *window;
 256         LayoutWindow *lw = nullptr;
 257
 258         layout_valid(&lw);
 259
 260         if (!ew || !lw) return;
 261
 262         window = gtk_widget_get_window(ew->window);
 263         gdk_window_get_position(window, &lw->options.advanced_exif_window.x, &lw->options.advanced_exif_window.y);
 264         lw->options.advanced_exif_window.w = gdk_window_get_width(window);
 265         lw->options.advanced_exif_window.h = gdk_window_get_height(window);
 266 }
 267
 268 void advanced_exif_close(ExifWin *ew)
 269 {
 270         if (!ew) return;
 271
 272         advanced_exif_window_get_geometry(ew);
 273         file_data_unref(ew->fd);
 274
 275         gq_gtk_widget_destroy(ew->window);
 276
 277         g_free(ew);
 278 }
 279
 280 static gboolean advanced_exif_delete_cb(GtkWidget *, GdkEvent *, gpointer data)
 281 {
 282         auto ew = static_cast<ExifWin *>(data);
 283
 284         if (!ew) return FALSE;
 285
 286         advanced_exif_window_get_geometry(ew);
 287         file_data_unref(ew->fd);
 288
 289         g_free(ew);
 290
 291         return FALSE;
 292 }
 293
 294 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 295 {
 296         gint n = GPOINTER_TO_INT(data);
 297         gint ret = 0;
 298
 299         switch (n)
 300                 {
 301                 case EXIF_ADVCOL_DESCRIPTION:
 302                 case EXIF_ADVCOL_VALUE:
 303                 case EXIF_ADVCOL_NAME:
 304                 case EXIF_ADVCOL_TAG:
 305                 case EXIF_ADVCOL_FORMAT:
 306                 case EXIF_ADVCOL_ELEMENTS:
 307                         {
 308                         gchar *s1;
 309                         gchar *s2;
 310
 311                         gtk_tree_model_get(model, a, n, &s1, -1);
 312                         gtk_tree_model_get(model, b, n, &s2, -1);
 313
 314                         if (!s1 || !s2)
 315                                 {
 316                                 if (!s1 && !s2) break;
 317                                 ret = s1 ? 1 : -1;
 318                                 }
 319                         else
 320                                 {
 321                                 ret = g_utf8_collate(s1, s2);
 322                                 }
 323
 324                         g_free(s1);
 325                         g_free(s2);
 326                         }
 327                         break;
 328
 329                 default:
 330                         g_return_val_if_reached(0);
 331                 }
 332
 333         return ret;
 334 }
 335
 336 #ifdef HAVE_GTK4
 337 static gboolean advanced_exif_mouseclick(GtkWidget *, GdkEventButton *, gpointer data)
 338 {
 339 /* @FIXME GTK4 stub */
 340         return TRUE;
 341 }
 342 #else
 343 static gboolean advanced_exif_mouseclick(GtkWidget *, GdkEventButton *, gpointer data)
 344 {
 345         auto ew = static_cast<ExifWin *>(data);
 346         GtkTreePath *path;
 347         GtkTreeViewColumn *column;
 348         GtkTreeIter iter;
 349         GtkTreeModel *store;
 350         gchar *value;
 351         GList *cols;
 352         gint col_num;
 353         GtkClipboard *clipboard;
 354
 355         gtk_tree_view_get_cursor(GTK_TREE_VIEW(ew->listview), &path, &column);
 356         if (path && column)
 357                 {
 358                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview));
 359                 gtk_tree_model_get_iter(store, &iter, path);
 360
 361                 cols = gtk_tree_view_get_columns(GTK_TREE_VIEW(ew->listview));
 362                 col_num = g_list_index(cols, column);
 363                 gtk_tree_model_get(store, &iter, display_order[col_num], &value, -1);
 364
 365                 clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 366                 gtk_clipboard_set_text(clipboard, value, -1);
 367
 368                 g_list_free(cols);
 369                 g_free(value);
 370
 371                 gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), gtk_tree_view_column_get_sort_column_id(column));
 372                 }
 373
 374         return TRUE;
 375 }
 376 #endif
 377
 378 static gboolean advanced_exif_keypress(GtkWidget *, GdkEventKey *event, gpointer data)
 379 {
 380         auto ew = static_cast<ExifWin *>(data);
 381         gboolean stop_signal = FALSE;
 382
 383         if (event->state & GDK_CONTROL_MASK)
 384                 {
 385                 switch (event->keyval)
 386                         {
 387                         case 'W': case 'w':
 388                                 advanced_exif_close(ew);
 389                                 stop_signal = TRUE;
 390                                 break;
 391                         }
 392                 } // if (event->state & GDK_CONTROL...
 393         if (!stop_signal && is_help_key(event))
 394                 {
 395                 help_window_show("GuideOtherWindowsExif.html");
 396                 stop_signal = TRUE;
 397                 }
 398
 399         return stop_signal;
 400 }
 401
 402 static gboolean search_function_cb(GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer)
 403 {
 404         gboolean ret = TRUE;
 405         gchar *field_contents;
 406         gchar *field_contents_nocase;
 407         gchar *key_nocase;
 408
 409         gtk_tree_model_get(model, iter, column, &field_contents, -1);
 410
 411         field_contents_nocase = g_utf8_casefold(field_contents, -1);
 412         key_nocase = g_utf8_casefold(key, -1);
 413
 414         if (g_strstr_len(field_contents_nocase, -1, key_nocase))
 415                 {
 416                 ret = FALSE;
 417                 }
 418
 419         g_free(field_contents);
 420         g_free(field_contents_nocase);
 421         g_free(key_nocase);
 422
 423         return ret;
 424 }
 425
 426 GtkWidget *advanced_exif_new(LayoutWindow *lw)
 427 {
 428         ExifWin *ew;
 429         GtkListStore *store;
 430         GdkGeometry geometry;
 431         GtkTreeSortable *sortable;
 432         GtkWidget *box;
 433         gint n;
 434
 435         ew = g_new0(ExifWin, 1);
 436
 437         ew->window = window_new("view", nullptr, nullptr, _("Metadata"));
 438         DEBUG_NAME(ew->window);
 439
 440         geometry.min_width = 900;
 441         geometry.min_height = 600;
 442         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), nullptr, &geometry, GDK_HINT_MIN_SIZE);
 443
 444         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 445
 446         gtk_window_resize(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.w, lw->options.advanced_exif_window.h);
 447         if (lw->options.advanced_exif_window.x != 0 && lw->options.advanced_exif_window.y != 0)
 448                 {
 449                 gq_gtk_window_move(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.x, lw->options.advanced_exif_window.y);
 450                 }
 451
 452         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 453         g_signal_connect(G_OBJECT(ew->window), "delete_event", G_CALLBACK(advanced_exif_delete_cb), ew);
 454
 455         ew->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
 456         gq_gtk_container_add(GTK_WIDGET(ew->window), ew->vbox);
 457         gtk_widget_show(ew->vbox);
 458
 459         box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 460
 461         ew->label_file_name = gtk_label_new("");
 462         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 463         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 464         gtk_label_set_xalign(GTK_LABEL(ew->label_file_name), 0.5);
 465         gtk_label_set_yalign(GTK_LABEL(ew->label_file_name), 0.5);
 466
 467         gq_gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 468         gtk_widget_show(ew->label_file_name);
 469
 470         gq_gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 471         gtk_widget_show(box);
 472
 473
 474         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 475                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 476                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 477
 478         /* set up sorting */
 479         sortable = GTK_TREE_SORTABLE(store);
 480         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 481                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 482                                                 GINT_TO_POINTER(n), nullptr);
 483
 484         /* set initial sort order */
 485         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 486
 487         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 488         g_object_unref(store);
 489
 490         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 491
 492         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 493         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 494         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 495         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 496         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 497         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 498
 499         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(ew->listview), TRUE);
 500         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_DESCRIPTION);
 501         gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(ew->listview), search_function_cb, ew, nullptr);
 502
 503         gtk_drag_source_set(ew->listview,
 504                            static_cast<GdkModifierType>(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK),
 505                            advanced_exif_drag_types, n_exif_drag_types,
 506                            static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK));
 507
 508         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 509                          G_CALLBACK(advanced_exif_dnd_get), ew);
 510
 511         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 512                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 513
 514         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 515                          G_CALLBACK(advanced_exif_keypress), ew);
 516
 517         g_signal_connect(G_OBJECT(ew->listview), "button_release_event",
 518                         G_CALLBACK(advanced_exif_mouseclick), ew);
 519
 520         ew->scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
 521         gq_gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 522         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 523                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 524         gq_gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 525         gq_gtk_container_add(GTK_WIDGET(ew->scrolled), ew->listview);
 526         gtk_widget_show(ew->listview);
 527         gtk_widget_show(ew->scrolled);
 528
 529         gtk_widget_show(ew->window);
 530         return ew->window;
 531 }
 532 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */