src/advanced_exif.c

   1 /*
   2  * Geeqie
   3  * (C) 2004 John Ellis
   4  * Copyright (C) 2008 - 2009 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
  47         FileData *fd;
  48 };
  49
  50 enum {
  51         EXIF_ADVCOL_ENABLED = 0,
  52         EXIF_ADVCOL_TAG,
  53         EXIF_ADVCOL_NAME,
  54         EXIF_ADVCOL_VALUE,
  55         EXIF_ADVCOL_FORMAT,
  56         EXIF_ADVCOL_ELEMENTS,
  57         EXIF_ADVCOL_DESCRIPTION,
  58         EXIF_ADVCOL_COUNT
  59 };
  60
  61 static gint advanced_exif_row_enabled(const gchar *name)
  62 {
  63         GList *list;
  64
  65         if (!name) return FALSE;
  66
  67         list = history_list_get_by_key("exif_extras");
  68         while (list)
  69                 {
  70                 if (strcmp(name, (gchar *)(list->data)) == 0) return TRUE;
  71                 list = list->next;
  72         }
  73
  74         return FALSE;
  75 }
  76
  77 static void advanced_exif_update(ExifWin *ew)
  78 {
  79         ExifData *exif;
  80
  81         GtkListStore *store;
  82         GtkTreeIter iter;
  83         ExifData *exif_original;
  84         ExifItem *item;
  85
  86         exif = exif_read_fd(ew->fd);
  87
  88         gtk_widget_set_sensitive(ew->scrolled, !!exif);
  89
  90         if (!exif) return;
  91
  92         exif_original = exif_get_original(exif);
  93
  94         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
  95         gtk_list_store_clear(store);
  96
  97         item = exif_get_first_item(exif_original);
  98         while (item)
  99                 {
 100                 gchar *tag;
 101                 gchar *tag_name;
 102                 gchar *text;
 103                 gchar *utf8_text;
 104                 const gchar *format;
 105                 gchar *elements;
 106                 gchar *description;
 107
 108                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 109                 tag_name = exif_item_get_tag_name(item);
 110                 format = exif_item_get_format_name(item, TRUE);
 111                 text = exif_item_get_data_as_text(item);
 112                 utf8_text = utf8_validate_or_convert(text);
 113                 g_free(text);
 114                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 115                 description = exif_item_get_description(item);
 116                 if (!description || *description == '\0')
 117                         {
 118                         g_free(description);
 119                         description = g_strdup(tag_name);
 120                         }
 121
 122                 gtk_list_store_append(store, &iter);
 123                 gtk_list_store_set(store, &iter,
 124                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 125                                 EXIF_ADVCOL_TAG, tag,
 126                                 EXIF_ADVCOL_NAME, tag_name,
 127                                 EXIF_ADVCOL_VALUE, utf8_text,
 128                                 EXIF_ADVCOL_FORMAT, format,
 129                                 EXIF_ADVCOL_ELEMENTS, elements,
 130                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 131                 g_free(tag);
 132                 g_free(utf8_text);
 133                 g_free(elements);
 134                 g_free(description);
 135                 g_free(tag_name);
 136                 item = exif_get_next_item(exif_original);
 137                 }
 138         exif_free_fd(ew->fd, exif);
 139
 140 }
 141
 142 static void advanced_exif_clear(ExifWin *ew)
 143 {
 144         GtkListStore *store;
 145
 146         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 147         gtk_list_store_clear(store);
 148 }
 149
 150 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 151 {
 152         ExifWin *ew;
 153
 154         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 155         if (!ew) return;
 156
 157         /* store this, advanced view toggle needs to reload data */
 158         file_data_unref(ew->fd);
 159         ew->fd = file_data_ref(fd);
 160
 161         advanced_exif_clear(ew);
 162         advanced_exif_update(ew);
 163 }
 164
 165 #if 0
 166 static void advanced_exif_row_toggled_cb(GtkCellRendererToggle *toggle, const gchar *path, gpointer data)
 167 {
 168         GtkWidget *listview = data;
 169         GtkTreeModel *store;
 170         GtkTreeIter iter;
 171         GtkTreePath *tpath;
 172         gchar *name = NULL;
 173         gboolean active;
 174
 175         store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 176
 177         tpath = gtk_tree_path_new_from_string(path);
 178         gtk_tree_model_get_iter(store, &iter, tpath);
 179         gtk_tree_path_free(tpath);
 180
 181         gtk_tree_model_get(store, &iter, EXIF_ADVCOL_ENABLED, &active,
 182                                          EXIF_ADVCOL_NAME, &name, -1);
 183         active = (!active);
 184
 185         if (active &&
 186             g_list_length(history_list_get_by_key("exif_extras")) >= EXIF_BAR_CUSTOM_COUNT)
 187                 {
 188                 active = FALSE;
 189                 }
 190
 191         gtk_list_store_set(GTK_LIST_STORE(store), &iter, EXIF_ADVCOL_ENABLED, active, -1);
 192
 193         if (active)
 194                 {
 195                 history_list_add_to_key("exif_extras", name, EXIF_BAR_CUSTOM_COUNT);
 196                 }
 197         else
 198                 {
 199                 history_list_item_change("exif_extras", name, NULL);
 200                 }
 201
 202         g_free(name);
 203 }
 204 #endif
 205
 206 #if 0
 207 static void advanced_exif_add_column_check(GtkWidget *listview, const gchar *title, gint n)
 208 {
 209         GtkTreeViewColumn *column;
 210         GtkCellRenderer *renderer;
 211
 212         column = gtk_tree_view_column_new();
 213         gtk_tree_view_column_set_title(column, title);
 214         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 215
 216         renderer = gtk_cell_renderer_toggle_new();
 217         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 218         gtk_tree_view_column_add_attribute(column, renderer, "active", n);
 219         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 220
 221         g_signal_connect(G_OBJECT(renderer), "toggled",
 222                          G_CALLBACK(advanced_exif_row_toggled_cb), listview);
 223 }
 224 #endif
 225
 226 static GtkTargetEntry advanced_exif_drag_types[] = {
 227         { "text/plain", 0, TARGET_TEXT_PLAIN }
 228 };
 229 static gint n_exif_drag_types = 1;
 230
 231
 232 static void advanced_exif_dnd_get(GtkWidget *listview, GdkDragContext *context,
 233                                      GtkSelectionData *selection_data, guint info,
 234                                      guint time, gpointer data)
 235 {
 236         ExifWin *ew = data;
 237         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 238         GtkTreeIter iter;
 239
 240         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 241                 {
 242                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 243                 gchar *key;
 244
 245                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 246                 gtk_selection_data_set_text(selection_data, key, -1);
 247                 printf("%s\n",key);
 248                 g_free(key);
 249                 }
 250
 251 }
 252
 253 static void advanced_exif_dnd_end(GtkWidget *widget, GdkDragContext *context, gpointer data)
 254 {
 255         GtkWidget *window = data;
 256         gtk_widget_destroy(window);
 257 }
 258
 259 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer data)
 260 {
 261         ExifWin *ew = data;
 262         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 263         GtkTreeIter iter;
 264
 265         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 266                 {
 267                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 268                 gchar *key;
 269                 GtkWidget *window;
 270                 GtkWidget *label;
 271
 272                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &key, -1);
 273
 274                 window = gtk_window_new(GTK_WINDOW_POPUP);
 275                 gtk_widget_realize (window);
 276
 277                 label = gtk_label_new(key);
 278                 gtk_container_add(GTK_CONTAINER (window), label);
 279                 gtk_widget_show(label);
 280                 gtk_drag_set_icon_widget(context, window, -15, 10);
 281                 g_signal_connect(G_OBJECT(listview), "drag_end",
 282                                  G_CALLBACK(advanced_exif_dnd_end), window);
 283
 284                 g_free(key);
 285                 }
 286 }
 287
 288
 289
 290 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gint sizable)
 291 {
 292         GtkTreeViewColumn *column;
 293         GtkCellRenderer *renderer;
 294
 295         column = gtk_tree_view_column_new();
 296         gtk_tree_view_column_set_title(column, title);
 297
 298         if (sizable)
 299                 {
 300                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 301                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 302                 gtk_tree_view_column_set_resizable(column, TRUE);
 303                 }
 304         else
 305                 {
 306                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 307                 }
 308
 309         renderer = gtk_cell_renderer_text_new();
 310         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 311         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 312         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 313 }
 314
 315 void advanced_exif_close(GtkWidget *window)
 316 {
 317         ExifWin *ew;
 318
 319         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 320         if (!ew) return;
 321
 322         gtk_widget_destroy(ew->vbox);
 323 }
 324
 325 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 326 {
 327         ExifWin *ew = data;
 328         file_data_unref(ew->fd);
 329         g_free(ew);
 330 }
 331
 332 GtkWidget *advanced_exif_new(void)
 333 {
 334         ExifWin *ew;
 335         GtkListStore *store;
 336         GdkGeometry geometry;
 337
 338         ew = g_new0(ExifWin, 1);
 339
 340
 341         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 342
 343         geometry.min_width = 900;
 344         geometry.min_height = 600;
 345         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 346
 347         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 348
 349         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 350         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 351                                G_CALLBACK(advanced_exif_destroy), ew);
 352
 353         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 354         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 355         gtk_widget_show(ew->vbox);
 356
 357
 358         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 359                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 360                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 361         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 362         g_object_unref(store);
 363
 364         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 365         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 366
 367         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_NAME);
 368
 369         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 370         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 371         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 372         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 373         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 374         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 375
 376         gtk_drag_source_set(ew->listview,
 377                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 378                            advanced_exif_drag_types, n_exif_drag_types,
 379                            GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 380
 381         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 382                          G_CALLBACK(advanced_exif_dnd_get), ew);
 383
 384         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 385                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 386
 387         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 388         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 389         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 390                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 391         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 392         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 393         gtk_widget_show(ew->listview);
 394         gtk_widget_show(ew->scrolled);
 395
 396         gtk_widget_show(ew->window);
 397         return ew->window;
 398 }
 399 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */