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 void advanced_exif_close(ExifWin *ew)
 264 {
 265         if (!ew) return;
 266
 267         gtk_widget_destroy(ew->window);
 268 }
 269
 270 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 271 {
 272         ExifWin *ew = data;
 273         file_data_unref(ew->fd);
 274         g_free(ew);
 275 }
 276
 277 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 278 {
 279         gint n = GPOINTER_TO_INT(data);
 280         gint ret = 0;
 281
 282         switch (n)
 283                 {
 284                 case EXIF_ADVCOL_DESCRIPTION:
 285                 case EXIF_ADVCOL_VALUE:
 286                 case EXIF_ADVCOL_NAME:
 287                 case EXIF_ADVCOL_TAG:
 288                 case EXIF_ADVCOL_FORMAT:
 289                 case EXIF_ADVCOL_ELEMENTS:
 290                         {
 291                         gchar *s1, *s2;
 292
 293                         gtk_tree_model_get(model, a, n, &s1, -1);
 294                         gtk_tree_model_get(model, b, n, &s2, -1);
 295
 296                         if (!s1 || !s2)
 297                                 {
 298                                 if (!s1 && !s2) break;
 299                                 ret = s1 ? 1 : -1;
 300                                 }
 301                         else
 302                                 {
 303                                 ret = g_utf8_collate(s1, s2);
 304                                 }
 305
 306                         g_free(s1);
 307                         g_free(s2);
 308                         }
 309                         break;
 310
 311                 default:
 312                         g_return_val_if_reached(0);
 313                 }
 314
 315         return ret;
 316 }
 317
 318 static gboolean advanced_exif_mouseclick(GtkWidget *widget,
 319                                                 GdkEventButton *bevent, gpointer data)
 320 {
 321         ExifWin *ew = data;
 322         GtkTreePath *path;
 323         GtkTreeViewColumn *column;
 324         GtkTreeIter iter;
 325         GtkTreeModel *store;
 326         gchar *value;
 327         GList *cols;
 328         gint col_num;
 329         GtkClipboard *clipboard;
 330
 331         gtk_tree_view_get_cursor(GTK_TREE_VIEW(ew->listview), &path, &column);
 332         if (path && column)
 333                 {
 334                 store = gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview));
 335                 gtk_tree_model_get_iter(store, &iter, path);
 336
 337                 cols = gtk_tree_view_get_columns(GTK_TREE_VIEW(ew->listview));
 338                 col_num = g_list_index(cols, (gpointer)column);
 339                 gtk_tree_model_get(store, &iter, display_order[col_num], &value, -1);
 340
 341                 clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 342                 gtk_clipboard_set_text(clipboard, value, -1);
 343
 344                 g_list_free(cols);
 345                 g_free(value);
 346                 }
 347
 348         return TRUE;
 349 }
 350
 351 static gboolean advanced_exif_keypress(GtkWidget *widget, GdkEventKey *event, gpointer data)
 352 {
 353         ExifWin *ew = data;
 354         gboolean stop_signal = FALSE;
 355
 356         if (event->state & GDK_CONTROL_MASK)
 357                 {
 358                 switch (event->keyval)
 359                         {
 360                         case 'W': case 'w':
 361                                 advanced_exif_close(ew);
 362                                 stop_signal = TRUE;
 363                                 break;
 364                         }
 365                 } // if (event->state & GDK_CONTROL...
 366         if (!stop_signal && is_help_key(event))
 367                 {
 368                 help_window_show("GuideOtherWindowsExif.html");
 369                 stop_signal = TRUE;
 370                 }
 371
 372         return stop_signal;
 373 } // static gboolean advanced_exif_...
 374
 375 GtkWidget *advanced_exif_new(void)
 376 {
 377         ExifWin *ew;
 378         GtkListStore *store;
 379         GdkGeometry geometry;
 380         GtkTreeSortable *sortable;
 381         GtkWidget *box;
 382         gint n;
 383
 384         ew = g_new0(ExifWin, 1);
 385
 386         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 387         DEBUG_NAME(ew->window);
 388
 389         geometry.min_width = 900;
 390         geometry.min_height = 600;
 391         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 392
 393         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 394
 395         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 396         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 397                                G_CALLBACK(advanced_exif_destroy), ew);
 398
 399         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 400         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 401         gtk_widget_show(ew->vbox);
 402
 403         box = gtk_hbox_new(FALSE, 0);
 404
 405         ew->label_file_name = gtk_label_new("");
 406         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 407         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 408 #if GTK_CHECK_VERSION(3,16,0)
 409         gtk_label_set_xalign(GTK_LABEL(ew->label_file_name), 0.5);
 410         gtk_label_set_yalign(GTK_LABEL(ew->label_file_name), 0.5);
 411 #else
 412         gtk_misc_set_alignment(GTK_MISC(ew->label_file_name), 0.5, 0.5);
 413 #endif
 414         gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 415         gtk_widget_show(ew->label_file_name);
 416
 417         gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 418         gtk_widget_show(box);
 419
 420
 421         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 422                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 423                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 424
 425         /* set up sorting */
 426         sortable = GTK_TREE_SORTABLE(store);
 427         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 428                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 429                                                 GINT_TO_POINTER(n), NULL);
 430
 431         /* set initial sort order */
 432         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 433
 434         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 435         g_object_unref(store);
 436
 437         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 438         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 439
 440         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 441         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 442         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 443         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 444         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 445         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 446
 447
 448         gtk_drag_source_set(ew->listview,
 449                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 450                            advanced_exif_drag_types, n_exif_drag_types,
 451                            GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 452
 453         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 454                          G_CALLBACK(advanced_exif_dnd_get), ew);
 455
 456         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 457                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 458
 459         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 460                          G_CALLBACK(advanced_exif_keypress), ew);
 461
 462         g_signal_connect(G_OBJECT(ew->listview), "button_release_event",
 463                         G_CALLBACK(advanced_exif_mouseclick), ew);
 464
 465         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 466         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 467         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 468                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 469         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 470         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 471         gtk_widget_show(ew->listview);
 472         gtk_widget_show(ew->scrolled);
 473
 474         gtk_widget_show(ew->window);
 475         return ew->window;
 476 }
 477 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */