src/advanced_exif.c

   1 /*
   2  * Geeqie
   3  * (C) 2004 John Ellis
   4  * Copyright (C) 2008 - 2012 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "advanced_exif.h"
  16
  17 #include "exif.h"
  18 #include "metadata.h"
  19 #include "filedata.h"
  20 #include "history_list.h"
  21 #include "misc.h"
  22 #include "ui_misc.h"
  23 #include "window.h"
  24 #include "dnd.h"
  25
  26 /* FIXME: not needed when bar_exif.c is improved */
  27 #include "bar_exif.h"
  28
  29 #include <math.h>
  30
  31 #define ADVANCED_EXIF_DATA_COLUMN_WIDTH 200
  32
  33 /*
  34  *-------------------------------------------------------------------
  35  * EXIF window
  36  *-------------------------------------------------------------------
  37  */
  38
  39 typedef struct _ExifWin ExifWin;
  40 struct _ExifWin
  41 {
  42         GtkWidget *window;
  43         GtkWidget *vbox;
  44         GtkWidget *scrolled;
  45         GtkWidget *listview;
  46         GtkWidget *label_file_name;
  47
  48         FileData *fd;
  49 };
  50
  51 enum {
  52         EXIF_ADVCOL_ENABLED = 0,
  53         EXIF_ADVCOL_TAG,
  54         EXIF_ADVCOL_NAME,
  55         EXIF_ADVCOL_VALUE,
  56         EXIF_ADVCOL_FORMAT,
  57         EXIF_ADVCOL_ELEMENTS,
  58         EXIF_ADVCOL_DESCRIPTION,
  59         EXIF_ADVCOL_COUNT
  60 };
  61
  62 static gboolean advanced_exif_row_enabled(const gchar *name)
  63 {
  64         GList *list;
  65
  66         if (!name) return FALSE;
  67
  68         list = history_list_get_by_key("exif_extras");
  69         while (list)
  70                 {
  71                 if (strcmp(name, (gchar *)(list->data)) == 0) return TRUE;
  72                 list = list->next;
  73         }
  74
  75         return FALSE;
  76 }
  77
  78 static void advanced_exif_update(ExifWin *ew)
  79 {
  80         ExifData *exif;
  81
  82         GtkListStore *store;
  83         GtkTreeIter iter;
  84         ExifData *exif_original;
  85         ExifItem *item;
  86
  87         exif = exif_read_fd(ew->fd);
  88
  89         gtk_widget_set_sensitive(ew->scrolled, !!exif);
  90
  91         if (!exif) return;
  92
  93         exif_original = exif_get_original(exif);
  94
  95         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
  96         gtk_list_store_clear(store);
  97
  98         item = exif_get_first_item(exif_original);
  99         while (item)
 100                 {
 101                 gchar *tag;
 102                 gchar *tag_name;
 103                 gchar *text;
 104                 gchar *utf8_text;
 105                 const gchar *format;
 106                 gchar *elements;
 107                 gchar *description;
 108
 109                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 110                 tag_name = exif_item_get_tag_name(item);
 111                 format = exif_item_get_format_name(item, TRUE);
 112                 text = exif_item_get_data_as_text(item);
 113                 utf8_text = utf8_validate_or_convert(text);
 114                 g_free(text);
 115                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 116                 description = exif_item_get_description(item);
 117                 if (!description || *description == '\0')
 118                         {
 119                         g_free(description);
 120                         description = g_strdup(tag_name);
 121                         }
 122
 123                 gtk_list_store_append(store, &iter);
 124                 gtk_list_store_set(store, &iter,
 125                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 126                                 EXIF_ADVCOL_TAG, tag,
 127                                 EXIF_ADVCOL_NAME, tag_name,
 128                                 EXIF_ADVCOL_VALUE, utf8_text,
 129                                 EXIF_ADVCOL_FORMAT, format,
 130                                 EXIF_ADVCOL_ELEMENTS, elements,
 131                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 132                 g_free(tag);
 133                 g_free(utf8_text);
 134                 g_free(elements);
 135                 g_free(description);
 136                 g_free(tag_name);
 137                 item = exif_get_next_item(exif_original);
 138                 }
 139         exif_free_fd(ew->fd, exif);
 140
 141 }
 142
 143 static void advanced_exif_clear(ExifWin *ew)
 144 {
 145         GtkListStore *store;
 146
 147         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 148         gtk_list_store_clear(store);
 149 }
 150
 151 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 152 {
 153         ExifWin *ew;
 154
 155         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 156         if (!ew) return;
 157
 158         /* store this, advanced view toggle needs to reload data */
 159         file_data_unref(ew->fd);
 160         ew->fd = file_data_ref(fd);
 161
 162         gtk_label_set_text(GTK_LABEL(ew->label_file_name), (ew->fd) ? ew->fd->path : "");
 163
 164         advanced_exif_clear(ew);
 165         advanced_exif_update(ew);
 166 }
 167
 168 static GtkTargetEntry advanced_exif_drag_types[] = {
 169         { "text/plain", 0, TARGET_TEXT_PLAIN }
 170 };
 171 static gint n_exif_drag_types = 1;
 172
 173
 174 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *context,
 175                                   GtkSelectionData *selection_data, guint info,
 176                                   guint time, gpointer data)
 177 {
 178         //ExifWin *ew = data;
 179         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 180         GtkTreeIter iter;
 181
 182         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 183                 {
 184                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 185                 gchar *key;
 186
 187                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 188                 gtk_selection_data_set_text(selection_data, key, -1);
 189                 //printf("%s\n",key);
 190                 g_free(key);
 191                 }
 192
 193 }
 194
 195
 196 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer data)
 197 {
 198         //ExifWin *ew = data;
 199         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 200         GtkTreeIter iter;
 201
 202         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 203                 {
 204                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 205                 gchar *key;
 206
 207                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 208
 209                 dnd_set_drag_label(listview, context, key);
 210                 g_free(key);
 211                 }
 212 }
 213
 214
 215
 216 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gboolean sizable)
 217 {
 218         GtkTreeViewColumn *column;
 219         GtkCellRenderer *renderer;
 220
 221         column = gtk_tree_view_column_new();
 222         gtk_tree_view_column_set_title(column, title);
 223
 224         if (sizable)
 225                 {
 226                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 227                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 228                 }
 229         else
 230                 {
 231                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 232                 }
 233
 234         gtk_tree_view_column_set_resizable(column, TRUE);
 235         gtk_tree_view_column_set_sort_column_id(column, n);
 236
 237         renderer = gtk_cell_renderer_text_new();
 238         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 239         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 240         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 241 }
 242
 243 void advanced_exif_close(ExifWin *ew)
 244 {
 245         if (!ew) return;
 246
 247         gtk_widget_destroy(ew->window);
 248 }
 249
 250 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 251 {
 252         ExifWin *ew = data;
 253         file_data_unref(ew->fd);
 254         g_free(ew);
 255 }
 256
 257 static gint advanced_exif_sort_cb(GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer data)
 258 {
 259         gint n = GPOINTER_TO_INT(data);
 260         gint ret = 0;
 261
 262         switch (n)
 263                 {
 264                 case EXIF_ADVCOL_DESCRIPTION:
 265                 case EXIF_ADVCOL_VALUE:
 266                 case EXIF_ADVCOL_NAME:
 267                 case EXIF_ADVCOL_TAG:
 268                 case EXIF_ADVCOL_FORMAT:
 269                 case EXIF_ADVCOL_ELEMENTS:
 270                         {
 271                         gchar *s1, *s2;
 272
 273                         gtk_tree_model_get(model, a, n, &s1, -1);
 274                         gtk_tree_model_get(model, b, n, &s2, -1);
 275
 276                         if (!s1 || !s2)
 277                                 {
 278                                 if (!s1 && !s2) break;
 279                                 ret = s1 ? 1 : -1;
 280                                 }
 281                         else
 282                                 {
 283                                 ret = g_utf8_collate(s1, s2);
 284                                 }
 285
 286                         g_free(s1);
 287                         g_free(s2);
 288                         }
 289                         break;
 290
 291                 default:
 292                         g_return_val_if_reached(0);
 293                 }
 294
 295         return ret;
 296 }
 297
 298 static gboolean advanced_exif_keypress(GtkWidget *widget, GdkEventKey *event, gpointer data)
 299 {
 300         ExifWin *ew = data;
 301         gboolean stop_signal = FALSE;
 302
 303         if (event->state & GDK_CONTROL_MASK)
 304                 {
 305                 switch (event->keyval)
 306                         {
 307                         case 'W': case 'w':
 308                                 advanced_exif_close(ew);
 309                                 stop_signal = TRUE;
 310                                 break;
 311                         }
 312                 } // if (event->state & GDK_CONTROL...
 313
 314         return stop_signal;
 315 } // static gboolean advanced_exif_...
 316
 317 GtkWidget *advanced_exif_new(void)
 318 {
 319         ExifWin *ew;
 320         GtkListStore *store;
 321         GdkGeometry geometry;
 322         GtkTreeSortable *sortable;
 323         GtkWidget *box;
 324         gint n;
 325
 326         ew = g_new0(ExifWin, 1);
 327
 328         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 329
 330         geometry.min_width = 900;
 331         geometry.min_height = 600;
 332         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 333
 334         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 335
 336         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 337         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 338                                G_CALLBACK(advanced_exif_destroy), ew);
 339
 340         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 341         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 342         gtk_widget_show(ew->vbox);
 343
 344         box = gtk_hbox_new(FALSE, 0);
 345
 346         ew->label_file_name = gtk_label_new("");
 347         gtk_label_set_ellipsize(GTK_LABEL(ew->label_file_name), PANGO_ELLIPSIZE_START);
 348         gtk_label_set_selectable(GTK_LABEL(ew->label_file_name), TRUE);
 349         gtk_misc_set_alignment(GTK_MISC(ew->label_file_name), 0.5, 0.5);
 350         gtk_box_pack_start(GTK_BOX(box), ew->label_file_name, TRUE, TRUE, 0);
 351         gtk_widget_show(ew->label_file_name);
 352
 353         gtk_box_pack_start(GTK_BOX(ew->vbox), box, FALSE, FALSE, 0);
 354         gtk_widget_show(box);
 355
 356
 357         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 358                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 359                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 360
 361         /* set up sorting */
 362         sortable = GTK_TREE_SORTABLE(store);
 363         for (n = EXIF_ADVCOL_DESCRIPTION; n <= EXIF_ADVCOL_ELEMENTS; n++)
 364                 gtk_tree_sortable_set_sort_func(sortable, n, advanced_exif_sort_cb,
 365                                                 GINT_TO_POINTER(n), NULL);
 366
 367         /* set initial sort order */
 368         gtk_tree_sortable_set_sort_column_id(sortable, EXIF_ADVCOL_NAME, GTK_SORT_ASCENDING);
 369
 370         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 371         g_object_unref(store);
 372
 373         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 374         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 375
 376         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 377         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 378         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 379         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 380         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 381         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 382
 383
 384         gtk_drag_source_set(ew->listview,
 385                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 386                            advanced_exif_drag_types, n_exif_drag_types,
 387                            GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 388
 389         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 390                          G_CALLBACK(advanced_exif_dnd_get), ew);
 391
 392         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 393                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 394
 395         g_signal_connect(G_OBJECT(ew->window), "key_press_event",
 396                          G_CALLBACK(advanced_exif_keypress), ew);
 397
 398         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 399         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 400         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 401                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 402         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 403         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 404         gtk_widget_show(ew->listview);
 405         gtk_widget_show(ew->scrolled);
 406
 407         gtk_widget_show(ew->window);
 408         return ew->window;
 409 }
 410 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */