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