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 "misc.h"
  30 #include "ui_misc.h"
  31 #include "window.h"
  32 #include "dnd.h"
  33
  34 /* FIXME: not needed when bar_exif.c is improved */
  35 #include "bar_exif.h"
  36
  37 #include <math.h>
  38
  39 #define ADVANCED_EXIF_DATA_COLUMN_WIDTH 200
  40
  41 /*
  42  *-------------------------------------------------------------------
  43  * EXIF window
  44  *-------------------------------------------------------------------
  45  */
  46
  47 typedef struct _ExifWin ExifWin;
  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 static gboolean advanced_exif_row_enabled(const gchar *name)
  71 {
  72         GList *list;
  73
  74         if (!name) return FALSE;
  75
  76         list = history_list_get_by_key("exif_extras");
  77         while (list)
  78                 {
  79                 if (strcmp(name, (gchar *)(list->data)) == 0) return TRUE;
  80                 list = list->next;
  81         }
  82
  83         return FALSE;
  84 }
  85
  86 static void advanced_exif_update(ExifWin *ew)
  87 {
  88         ExifData *exif;
  89
  90         GtkListStore *store;
  91         GtkTreeIter iter;
  92         ExifData *exif_original;
  93         ExifItem *item;
  94
  95         exif = exif_read_fd(ew->fd);
  96
  97         gtk_widget_set_sensitive(ew->scrolled, !!exif);
  98
  99         if (!exif) return;
 100
 101         exif_original = exif_get_original(exif);
 102
 103         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 104         gtk_list_store_clear(store);
 105
 106         item = exif_get_first_item(exif_original);
 107         while (item)
 108                 {
 109                 gchar *tag;
 110                 gchar *tag_name;
 111                 gchar *text;
 112                 gchar *utf8_text;
 113                 const gchar *format;
 114                 gchar *elements;
 115                 gchar *description;
 116
 117                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 118                 tag_name = exif_item_get_tag_name(item);
 119                 format = exif_item_get_format_name(item, TRUE);
 120                 text = exif_item_get_data_as_text(item);
 121                 utf8_text = utf8_validate_or_convert(text);
 122                 g_free(text);
 123                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 124                 description = exif_item_get_description(item);
 125                 if (!description || *description == '\0')
 126                         {
 127                         g_free(description);
 128                         description = g_strdup(tag_name);
 129                         }
 130
 131                 gtk_list_store_append(store, &iter);
 132                 gtk_list_store_set(store, &iter,
 133                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 134                                 EXIF_ADVCOL_TAG, tag,
 135                                 EXIF_ADVCOL_NAME, tag_name,
 136                                 EXIF_ADVCOL_VALUE, utf8_text,
 137                                 EXIF_ADVCOL_FORMAT, format,
 138                                 EXIF_ADVCOL_ELEMENTS, elements,
 139                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 140                 g_free(tag);
 141                 g_free(utf8_text);
 142                 g_free(elements);
 143                 g_free(description);
 144                 g_free(tag_name);
 145                 item = exif_get_next_item(exif_original);
 146                 }
 147         exif_free_fd(ew->fd, exif);
 148
 149 }
 150
 151 static void advanced_exif_clear(ExifWin *ew)
 152 {
 153         GtkListStore *store;
 154
 155         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 156         gtk_list_store_clear(store);
 157 }
 158
 159 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 160 {
 161         ExifWin *ew;
 162
 163         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 164         if (!ew) return;
 165
 166         /* store this, advanced view toggle needs to reload data */
 167         file_data_unref(ew->fd);
 168         ew->fd = file_data_ref(fd);
 169
 170         gtk_label_set_text(GTK_LABEL(ew->label_file_name), (ew->fd) ? ew->fd->path : "");
 171
 172         advanced_exif_clear(ew);
 173         advanced_exif_update(ew);
 174 }
 175
 176 static GtkTargetEntry advanced_exif_drag_types[] = {
 177         { "text/plain", 0, TARGET_TEXT_PLAIN }
 178 };
 179 static gint n_exif_drag_types = 1;
 180
 181
 182 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *context,
 183                                   GtkSelectionData *selection_data, guint info,
 184                                   guint time, gpointer data)
 185 {
 186         //ExifWin *ew = data;
 187         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 188         GtkTreeIter iter;
 189
 190         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 191                 {
 192                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 193                 gchar *key;
 194
 195                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 196                 gtk_selection_data_set_text(selection_data, key, -1);
 197                 //printf("%s\n",key);
 198                 g_free(key);
 199                 }
 200
 201 }
 202
 203
 204 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer data)
 205 {
 206         //ExifWin *ew = data;
 207         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 208         GtkTreeIter iter;
 209
 210         if (gtk_tree_selection_get_selected(sel, NULL, &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 void advanced_exif_close(ExifWin *ew)
 252 {
 253         if (!ew) return;
 254
 255         gtk_widget_destroy(ew->window);
 256 }
 257
 258 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 259 {
 260         ExifWin *ew = data;
 261         file_data_unref(ew->fd);
 262         g_free(ew);
 263 }
 264
 265 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 266 {
 267         gint n = GPOINTER_TO_INT(data);
 268         gint ret = 0;
 269
 270         switch (n)
 271                 {
 272                 case EXIF_ADVCOL_DESCRIPTION:
 273                 case EXIF_ADVCOL_VALUE:
 274                 case EXIF_ADVCOL_NAME:
 275                 case EXIF_ADVCOL_TAG:
 276                 case EXIF_ADVCOL_FORMAT:
 277                 case EXIF_ADVCOL_ELEMENTS:
 278                         {
 279                         gchar *s1, *s2;
 280
 281                         gtk_tree_model_get(model, a, n, &s1, -1);
 282                         gtk_tree_model_get(model, b, n, &s2, -1);
 283
 284                         if (!s1 || !s2)
 285                                 {
 286                                 if (!s1 && !s2) break;
 287                                 ret = s1 ? 1 : -1;
 288                                 }
 289                         else
 290                                 {
 291                                 ret = g_utf8_collate(s1, s2);
 292                                 }
 293
 294                         g_free(s1);
 295                         g_free(s2);
 296                         }
 297                         break;
 298
 299                 default:
 300                         g_return_val_if_reached(0);
 301                 }
 302
 303         return ret;
 304 }
 305
 306 static gboolean advanced_exif_keypress(GtkWidget *widget, GdkEventKey *event, gpointer data)
 307 {
 308         ExifWin *ew = data;
 309         gboolean stop_signal = FALSE;
 310
 311         if (event->state & GDK_CONTROL_MASK)
 312                 {
 313                 switch (event->keyval)
 314                         {
 315                         case 'W': case 'w':
 316                                 advanced_exif_close(ew);
 317                                 stop_signal = TRUE;
 318                                 break;
 319                         }
 320                 } // if (event->state & GDK_CONTROL...
 321
 322         return stop_signal;
 323 } // static gboolean advanced_exif_...
 324
 325 GtkWidget *advanced_exif_new(void)
 326 {
 327         ExifWin *ew;
 328         GtkListStore *store;
 329         GdkGeometry geometry;
 330         GtkTreeSortable *sortable;
 331         GtkWidget *box;
 332         gint n;
 333
 334         ew = g_new0(ExifWin, 1);
 335
 336         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 337
 338         geometry.min_width = 900;
 339         geometry.min_height = 600;
 340         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 341
 342         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 343
 344         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 345         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 346                                G_CALLBACK(advanced_exif_destroy), ew);
 347
 348         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 349         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 350         gtk_widget_show(ew->vbox);
 351
 352         box = gtk_hbox_new(FALSE, 0);
 353
 354         ew->label_file_name = gtk_label_new("");
 355         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 356         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 357         gtk_misc_set_alignment(GTK_MISC(ew->label_file_name), 0.5, 0.5);
 358         gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 359         gtk_widget_show(ew->label_file_name);
 360
 361         gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 362         gtk_widget_show(box);
 363
 364
 365         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 366                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 367                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 368
 369         /* set up sorting */
 370         sortable = GTK_TREE_SORTABLE(store);
 371         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 372                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 373                                                 GINT_TO_POINTER(n), NULL);
 374
 375         /* set initial sort order */
 376         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 377
 378         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 379         g_object_unref(store);
 380
 381         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 382         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 383
 384         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 385         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 386         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 387         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 388         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 389         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 390
 391
 392         gtk_drag_source_set(ew->listview,
 393                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 394                            advanced_exif_drag_types, n_exif_drag_types,
 395                            GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 396
 397         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 398                          G_CALLBACK(advanced_exif_dnd_get), ew);
 399
 400         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 401                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 402
 403         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 404                          G_CALLBACK(advanced_exif_keypress), ew);
 405
 406         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 407         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 408         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 409                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 410         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 411         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 412         gtk_widget_show(ew->listview);
 413         gtk_widget_show(ew->scrolled);
 414
 415         gtk_widget_show(ew->window);
 416         return ew->window;
 417 }
 418 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */