src/advanced_exif.c

   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 "metadata.h"
  27 #include "filedata.h"
  28 #include "history_list.h"
  29 #include "layout_util.h"
  30 #include "misc.h"
  31 #include "ui_misc.h"
  32 #include "window.h"
  33 #include "dnd.h"
  34
  35 /** @FIXME not needed when bar_exif.c is improved */
  36 #include "bar_exif.h"
  37
  38 #include <math.h>
  39
  40 #define ADVANCED_EXIF_DATA_COLUMN_WIDTH 200
  41
  42 /*
  43  *-------------------------------------------------------------------
  44  * EXIF window
  45  *-------------------------------------------------------------------
  46  */
  47
  48 typedef struct _ExifWin ExifWin;
  49 struct _ExifWin
  50 {
  51         GtkWidget *window;
  52         GtkWidget *vbox;
  53         GtkWidget *scrolled;
  54         GtkWidget *listview;
  55         GtkWidget *label_file_name;
  56
  57         FileData *fd;
  58 };
  59
  60 enum {
  61         EXIF_ADVCOL_ENABLED = 0,
  62         EXIF_ADVCOL_TAG,
  63         EXIF_ADVCOL_NAME,
  64         EXIF_ADVCOL_VALUE,
  65         EXIF_ADVCOL_FORMAT,
  66         EXIF_ADVCOL_ELEMENTS,
  67         EXIF_ADVCOL_DESCRIPTION,
  68         EXIF_ADVCOL_COUNT
  69 };
  70
  71 gint display_order [6] = {
  72         EXIF_ADVCOL_DESCRIPTION,
  73         EXIF_ADVCOL_VALUE,
  74         EXIF_ADVCOL_NAME,
  75         EXIF_ADVCOL_TAG,
  76         EXIF_ADVCOL_FORMAT,
  77         EXIF_ADVCOL_ELEMENTS
  78 };
  79
  80 static gboolean advanced_exif_row_enabled(const gchar *name)
  81 {
  82         GList *list;
  83
  84         if (!name) return FALSE;
  85
  86         list = history_list_get_by_key("exif_extras");
  87         while (list)
  88                 {
  89                 if (strcmp(name, (gchar *)(list->data)) == 0) return TRUE;
  90                 list = list->next;
  91         }
  92
  93         return FALSE;
  94 }
  95
  96 static void advanced_exif_update(ExifWin *ew)
  97 {
  98         ExifData *exif;
  99
 100         GtkListStore *store;
 101         GtkTreeIter iter;
 102         ExifData *exif_original;
 103         ExifItem *item;
 104
 105         exif = exif_read_fd(ew->fd);
 106
 107         gtk_widget_set_sensitive(ew->scrolled, !!exif);
 108
 109         if (!exif) return;
 110
 111         exif_original = exif_get_original(exif);
 112
 113         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 114         gtk_list_store_clear(store);
 115
 116         item = exif_get_first_item(exif_original);
 117         while (item)
 118                 {
 119                 gchar *tag;
 120                 gchar *tag_name;
 121                 gchar *text;
 122                 gchar *utf8_text;
 123                 const gchar *format;
 124                 gchar *elements;
 125                 gchar *description;
 126
 127                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 128                 tag_name = exif_item_get_tag_name(item);
 129                 format = exif_item_get_format_name(item, TRUE);
 130                 text = exif_item_get_data_as_text(item);
 131                 utf8_text = utf8_validate_or_convert(text);
 132                 g_free(text);
 133                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 134                 description = exif_item_get_description(item);
 135                 if (!description || *description == '\0')
 136                         {
 137                         g_free(description);
 138                         description = g_strdup(tag_name);
 139                         }
 140
 141                 gtk_list_store_append(store, &iter);
 142                 gtk_list_store_set(store, &iter,
 143                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 144                                 EXIF_ADVCOL_TAG, tag,
 145                                 EXIF_ADVCOL_NAME, tag_name,
 146                                 EXIF_ADVCOL_VALUE, utf8_text,
 147                                 EXIF_ADVCOL_FORMAT, format,
 148                                 EXIF_ADVCOL_ELEMENTS, elements,
 149                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 150                 g_free(tag);
 151                 g_free(utf8_text);
 152                 g_free(elements);
 153                 g_free(description);
 154                 g_free(tag_name);
 155                 item = exif_get_next_item(exif_original);
 156                 }
 157         exif_free_fd(ew->fd, exif);
 158
 159 }
 160
 161 static void advanced_exif_clear(ExifWin *ew)
 162 {
 163         GtkListStore *store;
 164
 165         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 166         gtk_list_store_clear(store);
 167 }
 168
 169 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 170 {
 171         ExifWin *ew;
 172
 173         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 174         if (!ew) return;
 175
 176         /* store this, advanced view toggle needs to reload data */
 177         file_data_unref(ew->fd);
 178         ew->fd = file_data_ref(fd);
 179
 180         gtk_label_set_text(GTK_LABEL(ew->label_file_name), (ew->fd) ? ew->fd->path : "");
 181
 182         advanced_exif_clear(ew);
 183         advanced_exif_update(ew);
 184 }
 185
 186 static GtkTargetEntry advanced_exif_drag_types[] = {
 187         { "text/plain", 0, TARGET_TEXT_PLAIN }
 188 };
 189 static gint n_exif_drag_types = 1;
 190
 191
 192 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *context,
 193                                   GtkSelectionData *selection_data, guint info,
 194                                   guint time, gpointer data)
 195 {
 196         //ExifWin *ew = data;
 197         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 198         GtkTreeIter iter;
 199
 200         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 201                 {
 202                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 203                 gchar *key;
 204
 205                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 206                 gtk_selection_data_set_text(selection_data, key, -1);
 207                 //printf("%s\n",key);
 208                 g_free(key);
 209                 }
 210
 211 }
 212
 213
 214 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer data)
 215 {
 216         //ExifWin *ew = data;
 217         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 218         GtkTreeIter iter;
 219
 220         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 221                 {
 222                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 223                 gchar *key;
 224
 225                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 226
 227                 dnd_set_drag_label(listview, context, key);
 228                 g_free(key);
 229                 }
 230 }
 231
 232
 233
 234 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gboolean sizable)
 235 {
 236         GtkTreeViewColumn *column;
 237         GtkCellRenderer *renderer;
 238
 239         column = gtk_tree_view_column_new();
 240         gtk_tree_view_column_set_title(column, title);
 241
 242         if (sizable)
 243                 {
 244                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 245                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 246                 }
 247         else
 248                 {
 249                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 250                 }
 251
 252 #if GTK_CHECK_VERSION(3,0,0)
 253         gtk_tree_view_column_set_resizable(column, TRUE);
 254 #endif
 255         gtk_tree_view_column_set_sort_column_id(column, n);
 256
 257         renderer = gtk_cell_renderer_text_new();
 258         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 259         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 260         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 261 }
 262
 263 static void advanced_exif_window_get_geometry(ExifWin *ew)
 264 {
 265         GdkWindow *window;
 266         LayoutWindow *lw = NULL;
 267
 268         layout_valid(&lw);
 269
 270         if (!ew || !lw) return;
 271
 272         window = gtk_widget_get_window(ew->window);
 273         gdk_window_get_position(window, &lw->options.advanced_exif_window.x, &lw->options.advanced_exif_window.y);
 274         lw->options.advanced_exif_window.w = gdk_window_get_width(window);
 275         lw->options.advanced_exif_window.h = gdk_window_get_height(window);
 276 }
 277
 278 void advanced_exif_close(ExifWin *ew)
 279 {
 280         if (!ew) return;
 281
 282         advanced_exif_window_get_geometry(ew);
 283         file_data_unref(ew->fd);
 284
 285         gtk_widget_destroy(ew->window);
 286
 287         g_free(ew);
 288 }
 289
 290 static gboolean advanced_exif_delete_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
 291 {
 292         ExifWin *ew = data;
 293
 294         if (!ew) return FALSE;
 295
 296         advanced_exif_window_get_geometry(ew);
 297         file_data_unref(ew->fd);
 298
 299         g_free(ew);
 300
 301         return FALSE;
 302 }
 303
 304 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 305 {
 306         gint n = GPOINTER_TO_INT(data);
 307         gint ret = 0;
 308
 309         switch (n)
 310                 {
 311                 case EXIF_ADVCOL_DESCRIPTION:
 312                 case EXIF_ADVCOL_VALUE:
 313                 case EXIF_ADVCOL_NAME:
 314                 case EXIF_ADVCOL_TAG:
 315                 case EXIF_ADVCOL_FORMAT:
 316                 case EXIF_ADVCOL_ELEMENTS:
 317                         {
 318                         gchar *s1, *s2;
 319
 320                         gtk_tree_model_get(model, a, n, &s1, -1);
 321                         gtk_tree_model_get(model, b, n, &s2, -1);
 322
 323                         if (!s1 || !s2)
 324                                 {
 325                                 if (!s1 && !s2) break;
 326                                 ret = s1 ? 1 : -1;
 327                                 }
 328                         else
 329                                 {
 330                                 ret = g_utf8_collate(s1, s2);
 331                                 }
 332
 333                         g_free(s1);
 334                         g_free(s2);
 335                         }
 336                         break;
 337
 338                 default:
 339                         g_return_val_if_reached(0);
 340                 }
 341
 342         return ret;
 343 }
 344
 345 static gboolean advanced_exif_mouseclick(GtkWidget *widget,
 346                                                 GdkEventButton *bevent, gpointer data)
 347 {
 348         ExifWin *ew = data;
 349         GtkTreePath *path;
 350         GtkTreeViewColumn *column;
 351         GtkTreeIter iter;
 352         GtkTreeModel *store;
 353         gchar *value;
 354         GList *cols;
 355         gint col_num;
 356         GtkClipboard *clipboard;
 357
 358         gtk_tree_view_get_cursor(GTK_TREE_VIEW(ew->listview), &path, &column);
 359         if (path && column)
 360                 {
 361                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview));
 362                 gtk_tree_model_get_iter(store, &iter, path);
 363
 364                 cols = gtk_tree_view_get_columns(GTK_TREE_VIEW(ew->listview));
 365                 col_num = g_list_index(cols, (gpointer)column);
 366                 gtk_tree_model_get(store, &iter, display_order[col_num], &value, -1);
 367
 368                 clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 369                 gtk_clipboard_set_text(clipboard, value, -1);
 370
 371                 g_list_free(cols);
 372                 g_free(value);
 373
 374                 gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), gtk_tree_view_column_get_sort_column_id(column));
 375                 }
 376
 377         return TRUE;
 378 }
 379
 380 static gboolean advanced_exif_keypress(GtkWidget *widget, GdkEventKey *event, gpointer data)
 381 {
 382         ExifWin *ew = data;
 383         gboolean stop_signal = FALSE;
 384
 385         if (event->state & GDK_CONTROL_MASK)
 386                 {
 387                 switch (event->keyval)
 388                         {
 389                         case 'W': case 'w':
 390                                 advanced_exif_close(ew);
 391                                 stop_signal = TRUE;
 392                                 break;
 393                         }
 394                 } // if (event->state & GDK_CONTROL...
 395         if (!stop_signal && is_help_key(event))
 396                 {
 397                 help_window_show("GuideOtherWindowsExif.html");
 398                 stop_signal = TRUE;
 399                 }
 400
 401         return stop_signal;
 402 } // static gboolean advanced_exif_...
 403
 404 static gboolean search_function_cb(GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer data)
 405 {
 406         gboolean ret = TRUE;
 407         gchar *field_contents;
 408         gchar *field_contents_nocase;
 409         gchar *key_nocase;
 410
 411         gtk_tree_model_get(model, iter, column, &field_contents, -1);
 412
 413         field_contents_nocase = g_utf8_casefold(field_contents, -1);
 414         key_nocase = g_utf8_casefold(key, -1);
 415
 416         if (g_strstr_len(field_contents_nocase, -1, key_nocase))
 417                 {
 418                 ret = FALSE;
 419                 }
 420
 421         g_free(field_contents);
 422         g_free(field_contents_nocase);
 423         g_free(key_nocase);
 424
 425         return ret;
 426 }
 427
 428 GtkWidget *advanced_exif_new(LayoutWindow *lw)
 429 {
 430         ExifWin *ew;
 431         GtkListStore *store;
 432         GdkGeometry geometry;
 433         GtkTreeSortable *sortable;
 434         GtkWidget *box;
 435         gint n;
 436
 437         ew = g_new0(ExifWin, 1);
 438
 439         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 440         DEBUG_NAME(ew->window);
 441
 442         geometry.min_width = 900;
 443         geometry.min_height = 600;
 444         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 445
 446         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 447
 448         gtk_window_resize(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.w, lw->options.advanced_exif_window.h);
 449         if (lw->options.advanced_exif_window.x != 0 && lw->options.advanced_exif_window.y != 0)
 450                 {
 451                 gtk_window_move(GTK_WINDOW(ew->window), lw->options.advanced_exif_window.x, lw->options.advanced_exif_window.y);
 452                 }
 453
 454         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 455         g_signal_connect(G_OBJECT(ew->window), "delete_event", G_CALLBACK(advanced_exif_delete_cb), ew);
 456
 457         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 458         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 459         gtk_widget_show(ew->vbox);
 460
 461         box = gtk_hbox_new(FALSE, 0);
 462
 463         ew->label_file_name = gtk_label_new("");
 464         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 465         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 466 #if GTK_CHECK_VERSION(3,16,0)
 467         gtk_label_set_xalign(GTK_LABEL(ew->label_file_name), 0.5);
 468         gtk_label_set_yalign(GTK_LABEL(ew->label_file_name), 0.5);
 469 #else
 470         gtk_misc_set_alignment(GTK_MISC(ew->label_file_name), 0.5, 0.5);
 471 #endif
 472         gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 473         gtk_widget_show(ew->label_file_name);
 474
 475         gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 476         gtk_widget_show(box);
 477
 478
 479         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 480                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 481                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 482
 483         /* set up sorting */
 484         sortable = GTK_TREE_SORTABLE(store);
 485         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 486                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 487                                                 GINT_TO_POINTER(n), NULL);
 488
 489         /* set initial sort order */
 490         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 491
 492         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 493         g_object_unref(store);
 494
 495         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 496         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 497
 498         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 499         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 500         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 501         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 502         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 503         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 504
 505         gtk_tree_view_set_enable_search(GTK_TREE_VIEW(ew->listview), TRUE);
 506         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_DESCRIPTION);
 507         gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(ew->listview), search_function_cb, ew, NULL);
 508
 509         gtk_drag_source_set(ew->listview,
 510                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 511                            advanced_exif_drag_types, n_exif_drag_types,
 512                            GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 513
 514         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 515                          G_CALLBACK(advanced_exif_dnd_get), ew);
 516
 517         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 518                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 519
 520         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 521                          G_CALLBACK(advanced_exif_keypress), ew);
 522
 523         g_signal_connect(G_OBJECT(ew->listview), "button_release_event",
 524                         G_CALLBACK(advanced_exif_mouseclick), ew);
 525
 526         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 527         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 528         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 529                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 530         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 531         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 532         gtk_widget_show(ew->listview);
 533         gtk_widget_show(ew->scrolled);
 534
 535         gtk_widget_show(ew->window);
 536         return ew->window;
 537 }
 538 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */