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 "advanced-exif.h"
  23
  24 #include <config.h>
  25
  26 #include "compat.h"
  27 #include "debug.h"
  28 #include "dnd.h"
  29 #include "exif.h"
  30 #include "filedata.h"
  31 #include "history-list.h"
  32 #include "intl.h"
  33 #include "layout-util.h"
  34 #include "misc.h"
  35 #include "ui-misc.h"
  36 #include "window.h"
  37
  38 enum {
  39         ADVANCED_EXIF_DATA_COLUMN_WIDTH = 200
  40 };
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * EXIF window
  45  *-------------------------------------------------------------------
  46  */
  47
  48 struct ExifWin
  49 {
  50         GtkWidget *window;
  51         GtkWidget *vbox;
  52         GtkWidget *scrolled;
  53         GtkWidget *listview;
  54         GtkWidget *label_file_name;
  55
  56         FileData *fd;
  57 };
  58
  59 enum {
  60         EXIF_ADVCOL_ENABLED = 0,
  61         EXIF_ADVCOL_TAG,
  62         EXIF_ADVCOL_NAME,
  63         EXIF_ADVCOL_VALUE,
  64         EXIF_ADVCOL_FORMAT,
  65         EXIF_ADVCOL_ELEMENTS,
  66         EXIF_ADVCOL_DESCRIPTION,
  67         EXIF_ADVCOL_COUNT
  68 };
  69
  70 gint display_order [6] = {
  71         EXIF_ADVCOL_DESCRIPTION,
  72         EXIF_ADVCOL_VALUE,
  73         EXIF_ADVCOL_NAME,
  74         EXIF_ADVCOL_TAG,
  75         EXIF_ADVCOL_FORMAT,
  76         EXIF_ADVCOL_ELEMENTS
  77 };
  78
  79 static gboolean advanced_exif_row_enabled(const gchar *name)
  80 {
  81         GList *list;
  82
  83         if (!name) return FALSE;
  84
  85         list = history_list_get_by_key("exif_extras");
  86         while (list)
  87                 {
  88                 if (strcmp(name, static_cast<gchar *>(list->data)) == 0) return TRUE;
  89                 list = list->next;
  90         }
  91
  92         return FALSE;
  93 }
  94
  95 static void advanced_exif_update(ExifWin *ew)
  96 {
  97         ExifData *exif;
  98
  99         GtkListStore *store;
 100         GtkTreeIter iter;
 101         ExifData *exif_original;
 102         ExifItem *item;
 103
 104         exif = exif_read_fd(ew->fd);
 105
 106         gtk_widget_set_sensitive(ew->scrolled, !!exif);
 107
 108         if (!exif) return;
 109
 110         exif_original = exif_get_original(exif);
 111
 112         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 113         gtk_list_store_clear(store);
 114
 115         item = exif_get_first_item(exif_original);
 116         while (item)
 117                 {
 118                 gchar *tag;
 119                 gchar *tag_name;
 120                 gchar *text;
 121                 gchar *utf8_text;
 122                 const gchar *format;
 123                 gchar *elements;
 124                 gchar *description;
 125
 126                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 127                 tag_name = exif_item_get_tag_name(item);
 128                 format = exif_item_get_format_name(item, TRUE);
 129                 text = exif_item_get_data_as_text(item, exif);
 130                 utf8_text = utf8_validate_or_convert(text);
 131                 g_free(text);
 132                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 133                 description = exif_item_get_description(item);
 134                 if (!description || *description == '\0')
 135                         {
 136                         g_free(description);
 137                         description = g_strdup(tag_name);
 138                         }
 139
 140                 gtk_list_store_append(store, &iter);
 141                 gtk_list_store_set(store, &iter,
 142                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 143                                 EXIF_ADVCOL_TAG, tag,
 144                                 EXIF_ADVCOL_NAME, tag_name,
 145                                 EXIF_ADVCOL_VALUE, utf8_text,
 146                                 EXIF_ADVCOL_FORMAT, format,
 147                                 EXIF_ADVCOL_ELEMENTS, elements,
 148                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 149                 g_free(tag);
 150                 g_free(utf8_text);
 151                 g_free(elements);
 152                 g_free(description);
 153                 g_free(tag_name);
 154                 item = exif_get_next_item(exif_original);
 155                 }
 156         exif_free_fd(ew->fd, exif);
 157
 158 }
 159
 160 static void advanced_exif_clear(ExifWin *ew)
 161 {
 162         GtkListStore *store;
 163
 164         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 165         gtk_list_store_clear(store);
 166 }
 167
 168 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 169 {
 170         ExifWin *ew;
 171
 172         ew = static_cast<ExifWin *>(g_object_get_data(G_OBJECT(window), "advanced_exif_data"));
 173         if (!ew) return;
 174
 175         /* store this, advanced view toggle needs to reload data */
 176         file_data_unref(ew->fd);
 177         ew->fd = file_data_ref(fd);
 178
 179         gtk_label_set_text(GTK_LABEL(ew->label_file_name), (ew->fd) ? ew->fd->path : "");
 180
 181         advanced_exif_clear(ew);
 182         advanced_exif_update(ew);
 183 }
 184
 185 static GtkTargetEntry advanced_exif_drag_types[] = {
 186         { const_cast<gchar *>("text/plain"), 0, TARGET_TEXT_PLAIN }
 187 };
 188 static gint n_exif_drag_types = 1;
 189
 190
 191 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *,
 192                                   GtkSelectionData *selection_data,
 193                                   guint, guint, gpointer)
 194 {
 195         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 196         GtkTreeIter iter;
 197
 198         if (gtk_tree_selection_get_selected(sel, nullptr, &iter))
 199                 {
 200                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 201                 gchar *key;
 202
 203                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 204                 gtk_selection_data_set_text(selection_data, key, -1);
 205                 g_free(key);
 206                 }
 207
 208 }
 209
 210
 211 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer)
 212 {
 213         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 214         GtkTreeIter iter;
 215
 216         if (gtk_tree_selection_get_selected(sel, nullptr, &iter))
 217                 {
 218                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 219                 gchar *key;
 220
 221                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 222
 223                 dnd_set_drag_label(listview, context, key);
 224                 g_free(key);
 225                 }
 226 }
 227
 228
 229
 230 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gboolean sizable)
 231 {
 232         GtkTreeViewColumn *column;
 233         GtkCellRenderer *renderer;
 234
 235         column = gtk_tree_view_column_new();
 236         gtk_tree_view_column_set_title(column, title);
 237
 238         if (sizable)
 239                 {
 240                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 241                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 242                 }
 243         else
 244                 {
 245                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 246                 }
 247
 248         gtk_tree_view_column_set_resizable(column, TRUE);
 249         gtk_tree_view_column_set_sort_column_id(column, n);
 250
 251         renderer = gtk_cell_renderer_text_new();
 252         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 253         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 254         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 255 }
 256
 257 static void advanced_exif_window_get_geometry(ExifWin *ew)
 258 {
 259         GdkWindow *window;
 260         LayoutWindow *lw = nullptr;
 261
 262         layout_valid(&lw);
 263
 264         if (!ew || !lw) return;
 265
 266         window = gtk_widget_get_window(ew->window);
 267         gdk_window_get_position(window, &lw->options.advanced_exif_window.x, &lw->options.advanced_exif_window.y);
 268         lw->options.advanced_exif_window.w = gdk_window_get_width(window);
 269         lw->options.advanced_exif_window.h = gdk_window_get_height(window);
 270 }
 271
 272 void advanced_exif_close(ExifWin *ew)
 273 {
 274         if (!ew) return;
 275
 276         advanced_exif_window_get_geometry(ew);
 277         file_data_unref(ew->fd);
 278
 279         gq_gtk_widget_destroy(ew->window);
 280
 281         g_free(ew);
 282 }
 283
 284 static gboolean advanced_exif_delete_cb(GtkWidget *, GdkEvent *, gpointer data)
 285 {
 286         auto ew = static_cast<ExifWin *>(data);
 287
 288         if (!ew) return FALSE;
 289
 290         advanced_exif_window_get_geometry(ew);
 291         file_data_unref(ew->fd);
 292
 293         g_free(ew);
 294
 295         return FALSE;
 296 }
 297
 298 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 299 {
 300         gint n = GPOINTER_TO_INT(data);
 301         gint ret = 0;
 302
 303         switch (n)
 304                 {
 305                 case EXIF_ADVCOL_DESCRIPTION:
 306                 case EXIF_ADVCOL_VALUE:
 307                 case EXIF_ADVCOL_NAME:
 308                 case EXIF_ADVCOL_TAG:
 309                 case EXIF_ADVCOL_FORMAT:
 310                 case EXIF_ADVCOL_ELEMENTS:
 311                         {
 312                         gchar *s1;
 313                         gchar *s2;
 314
 315                         gtk_tree_model_get(model, a, n, &s1, -1);
 316                         gtk_tree_model_get(model, b, n, &s2, -1);
 317
 318                         if (!s1 || !s2)
 319                                 {
 320                                 if (!s1 && !s2) break;
 321                                 ret = s1 ? 1 : -1;
 322                                 }
 323                         else
 324                                 {
 325                                 ret = g_utf8_collate(s1, s2);
 326                                 }
 327
 328                         g_free(s1);
 329                         g_free(s2);
 330                         }
 331                         break;
 332
 333                 default:
 334                         g_return_val_if_reached(0);
 335                 }
 336
 337         return ret;
 338 }
 339
 340 #ifdef HAVE_GTK4
 341 static gboolean advanced_exif_mouseclick(GtkWidget *, GdkEventButton *, gpointer data)
 342 {
 343 /* @FIXME GTK4 stub */
 344         return TRUE;
 345 }
 346 #else
 347 static gboolean advanced_exif_mouseclick(GtkWidget *, GdkEventButton *, gpointer data)
 348 {
 349         auto ew = static_cast<ExifWin *>(data);
 350         GtkTreePath *path;
 351         GtkTreeViewColumn *column;
 352         GtkTreeIter iter;
 353         GtkTreeModel *store;
 354         gchar *value;
 355         GList *cols;
 356         gint col_num;
 357         GtkClipboard *clipboard;
 358
 359         gtk_tree_view_get_cursor(GTK_TREE_VIEW(ew->listview), &path, &column);
 360         if (path && column)
 361                 {
 362                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview));
 363                 gtk_tree_model_get_iter(store, &iter, path);
 364
 365                 cols = gtk_tree_view_get_columns(GTK_TREE_VIEW(ew->listview));
 366                 col_num = g_list_index(cols, column);
 367                 gtk_tree_model_get(store, &iter, display_order[col_num], &value, -1);
 368
 369                 clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 370                 gtk_clipboard_set_text(clipboard, value, -1);
 371
 372                 g_list_free(cols);
 373                 g_free(value);
 374
 375                 gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), gtk_tree_view_column_get_sort_column_id(column));
 376                 }
 377
 378         return TRUE;
 379 }
 380 #endif
 381
 382 static gboolean advanced_exif_keypress(GtkWidget *, GdkEventKey *event, gpointer data)
 383 {
 384         auto ew = static_cast<ExifWin *>(data);
 385         gboolean stop_signal = FALSE;
 386
 387         if (event->state & GDK_CONTROL_MASK)
 388                 {
 389                 switch (event->keyval)
 390                         {
 391                         case 'W': case 'w':
 392                                 advanced_exif_close(ew);
 393                                 stop_signal = TRUE;
 394                                 break;
 395                         }
 396                 } // if (event->state & GDK_CONTROL...
 397         if (!stop_signal && is_help_key(event))
 398                 {
 399                 help_window_show("GuideOtherWindowsExif.html");
 400                 stop_signal = TRUE;
 401                 }
 402
 403         return stop_signal;
 404 }
 405
 406 static gboolean search_function_cb(GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer)
 407 {
 408         gboolean ret = TRUE;
 409         gchar *field_contents;
 410         gchar *field_contents_nocase;
 411         gchar *key_nocase;
 412
 413         gtk_tree_model_get(model, iter, column, &field_contents, -1);
 414
 415         field_contents_nocase = g_utf8_casefold(field_contents, -1);
 416         key_nocase = g_utf8_casefold(key, -1);
 417
 418         if (g_strstr_len(field_contents_nocase, -1, key_nocase))
 419                 {
 420                 ret = FALSE;
 421                 }
 422
 423         g_free(field_contents);
 424         g_free(field_contents_nocase);
 425         g_free(key_nocase);
 426
 427         return ret;
 428 }
 429
 430 GtkWidget *advanced_exif_new(LayoutWindow *lw)
 431 {
 432         ExifWin *ew;
 433         GtkListStore *store;
 434         GdkGeometry geometry;
 435         GtkTreeSortable *sortable;
 436         GtkWidget *box;
 437         gint n;
 438
 439         ew = g_new0(ExifWin, 1);
 440
 441         ew->window = window_new("view", nullptr, nullptr, _("Metadata"));
 442         DEBUG_NAME(ew->window);
 443
 444         geometry.min_width = 900;
 445         geometry.min_height = 600;
 446         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), nullptr, &geometry, GDK_HINT_MIN_SIZE);
 447
 448         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 449
 450         gtk_window_resize(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.w, lw->options.advanced_exif_window.h);
 451         if (lw->options.advanced_exif_window.x != 0 && lw->options.advanced_exif_window.y != 0)
 452                 {
 453                 gq_gtk_window_move(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.x, lw->options.advanced_exif_window.y);
 454                 }
 455
 456         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 457         g_signal_connect(G_OBJECT(ew->window), "delete_event", G_CALLBACK(advanced_exif_delete_cb), ew);
 458
 459         ew->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);
 460         gq_gtk_container_add(GTK_WIDGET(ew->window), ew->vbox);
 461         gtk_widget_show(ew->vbox);
 462
 463         box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 464
 465         ew->label_file_name = gtk_label_new("");
 466         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 467         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 468         gtk_label_set_xalign(GTK_LABEL(ew->label_file_name), 0.5);
 469         gtk_label_set_yalign(GTK_LABEL(ew->label_file_name), 0.5);
 470
 471         gq_gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 472         gtk_widget_show(ew->label_file_name);
 473
 474         gq_gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 475         gtk_widget_show(box);
 476
 477
 478         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 479                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 480                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 481
 482         /* set up sorting */
 483         sortable = GTK_TREE_SORTABLE(store);
 484         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 485                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 486                                                 GINT_TO_POINTER(n), nullptr);
 487
 488         /* set initial sort order */
 489         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 490
 491         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 492         g_object_unref(store);
 493
 494         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 495
 496         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 497         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 498         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 499         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 500         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 501         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 502
 503         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(ew->listview), TRUE);
 504         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_DESCRIPTION);
 505         gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(ew->listview), search_function_cb, ew, nullptr);
 506
 507         gtk_drag_source_set(ew->listview,
 508                            static_cast<GdkModifierType>(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK),
 509                            advanced_exif_drag_types, n_exif_drag_types,
 510                            static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK));
 511
 512         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 513                          G_CALLBACK(advanced_exif_dnd_get), ew);
 514
 515         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 516                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 517
 518         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 519                          G_CALLBACK(advanced_exif_keypress), ew);
 520
 521         g_signal_connect(G_OBJECT(ew->listview), "button_release_event",
 522                         G_CALLBACK(advanced_exif_mouseclick), ew);
 523
 524         ew->scrolled = gq_gtk_scrolled_window_new(nullptr, nullptr);
 525         gq_gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 526         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 527                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 528         gq_gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 529         gq_gtk_container_add(GTK_WIDGET(ew->scrolled), ew->listview);
 530         gtk_widget_show(ew->listview);
 531         gtk_widget_show(ew->scrolled);
 532
 533         gtk_widget_show(ew->window);
 534         return ew->window;
 535 }
 536 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */