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