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
  25 /* FIXME: not needed when bar_exif.c is improved */
  26 #include "bar_exif.h"
  27
  28 #include <math.h>
  29
  30 #define ADVANCED_EXIF_DATA_COLUMN_WIDTH 200
  31
  32 /*
  33  *-------------------------------------------------------------------
  34  * EXIF window
  35  *-------------------------------------------------------------------
  36  */
  37
  38 typedef struct _ExifWin ExifWin;
  39 struct _ExifWin
  40 {
  41         GtkWidget *window;
  42         GtkWidget *vbox;
  43         GtkWidget *scrolled;
  44         GtkWidget *listview;
  45
  46         FileData *fd;
  47 };
  48
  49 enum {
  50         EXIF_ADVCOL_ENABLED = 0,
  51         EXIF_ADVCOL_TAG,
  52         EXIF_ADVCOL_NAME,
  53         EXIF_ADVCOL_VALUE,
  54         EXIF_ADVCOL_FORMAT,
  55         EXIF_ADVCOL_ELEMENTS,
  56         EXIF_ADVCOL_DESCRIPTION,
  57         EXIF_ADVCOL_COUNT
  58 };
  59
  60 static gint advanced_exif_row_enabled(const gchar *name)
  61 {
  62         GList *list;
  63
  64         if (!name) return FALSE;
  65
  66         list = history_list_get_by_key("exif_extras");
  67         while (list)
  68                 {
  69                 if (strcmp(name, (gchar *)(list->data)) == 0) return TRUE;
  70                 list = list->next;
  71         }
  72
  73         return FALSE;
  74 }
  75
  76 static void advanced_exif_update(ExifWin *ew)
  77 {
  78         ExifData *exif;
  79
  80         GtkListStore *store;
  81         GtkTreeIter iter;
  82         ExifData *exif_original;
  83         ExifItem *item;
  84
  85         exif = exif_read_fd(ew->fd);
  86
  87         gtk_widget_set_sensitive(ew->scrolled, !!exif);
  88
  89         if (!exif) return;
  90
  91         exif_original = exif_get_original(exif);
  92
  93         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
  94         gtk_list_store_clear(store);
  95
  96         item = exif_get_first_item(exif_original);
  97         while (item)
  98                 {
  99                 gchar *tag;
 100                 gchar *tag_name;
 101                 gchar *text;
 102                 gchar *utf8_text;
 103                 const gchar *format;
 104                 gchar *elements;
 105                 gchar *description;
 106
 107                 tag = g_strdup_printf("0x%04x", exif_item_get_tag_id(item));
 108                 tag_name = exif_item_get_tag_name(item);
 109                 format = exif_item_get_format_name(item, TRUE);
 110                 text = exif_item_get_data_as_text(item);
 111                 utf8_text = utf8_validate_or_convert(text);
 112                 g_free(text);
 113                 elements = g_strdup_printf("%d", exif_item_get_elements(item));
 114                 description = exif_item_get_description(item);
 115                 if (!description || *description == '\0')
 116                         {
 117                         g_free(description);
 118                         description = g_strdup(tag_name);
 119                         }
 120
 121                 gtk_list_store_append(store, &iter);
 122                 gtk_list_store_set(store, &iter,
 123                                 EXIF_ADVCOL_ENABLED, advanced_exif_row_enabled(tag_name),
 124                                 EXIF_ADVCOL_TAG, tag,
 125                                 EXIF_ADVCOL_NAME, tag_name,
 126                                 EXIF_ADVCOL_VALUE, utf8_text,
 127                                 EXIF_ADVCOL_FORMAT, format,
 128                                 EXIF_ADVCOL_ELEMENTS, elements,
 129                                 EXIF_ADVCOL_DESCRIPTION, description, -1);
 130                 g_free(tag);
 131                 g_free(utf8_text);
 132                 g_free(elements);
 133                 g_free(description);
 134                 g_free(tag_name);
 135                 item = exif_get_next_item(exif_original);
 136                 }
 137         exif_free_fd(ew->fd, exif);
 138
 139 }
 140
 141 static void advanced_exif_clear(ExifWin *ew)
 142 {
 143         GtkListStore *store;
 144
 145         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(ew->listview)));
 146         gtk_list_store_clear(store);
 147 }
 148
 149 void advanced_exif_set_fd(GtkWidget *window, FileData *fd)
 150 {
 151         ExifWin *ew;
 152
 153         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 154         if (!ew) return;
 155
 156         /* store this, advanced view toggle needs to reload data */
 157         file_data_unref(ew->fd);
 158         ew->fd = file_data_ref(fd);
 159
 160         advanced_exif_clear(ew);
 161         advanced_exif_update(ew);
 162 }
 163
 164 static void advanced_exif_row_toggled_cb(GtkCellRendererToggle *toggle, const gchar *path, gpointer data)
 165 {
 166         GtkWidget *listview = data;
 167         GtkTreeModel *store;
 168         GtkTreeIter iter;
 169         GtkTreePath *tpath;
 170         gchar *name = NULL;
 171         gboolean active;
 172
 173         store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 174
 175         tpath = gtk_tree_path_new_from_string(path);
 176         gtk_tree_model_get_iter(store, &iter, tpath);
 177         gtk_tree_path_free(tpath);
 178
 179         gtk_tree_model_get(store, &iter, EXIF_ADVCOL_ENABLED, &active,
 180                                          EXIF_ADVCOL_NAME, &name, -1);
 181         active = (!active);
 182
 183         if (active &&
 184             g_list_length(history_list_get_by_key("exif_extras")) >= EXIF_BAR_CUSTOM_COUNT)
 185                 {
 186                 active = FALSE;
 187                 }
 188
 189         gtk_list_store_set(GTK_LIST_STORE(store), &iter, EXIF_ADVCOL_ENABLED, active, -1);
 190
 191         if (active)
 192                 {
 193                 history_list_add_to_key("exif_extras", name, EXIF_BAR_CUSTOM_COUNT);
 194                 }
 195         else
 196                 {
 197                 history_list_item_change("exif_extras", name, NULL);
 198                 }
 199
 200         g_free(name);
 201 }
 202
 203 static void advanced_exif_add_column_check(GtkWidget *listview, const gchar *title, gint n)
 204 {
 205         GtkTreeViewColumn *column;
 206         GtkCellRenderer *renderer;
 207
 208         column = gtk_tree_view_column_new();
 209         gtk_tree_view_column_set_title(column, title);
 210         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 211
 212         renderer = gtk_cell_renderer_toggle_new();
 213         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 214         gtk_tree_view_column_add_attribute(column, renderer, "active", n);
 215         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 216
 217         g_signal_connect(G_OBJECT(renderer), "toggled",
 218                          G_CALLBACK(advanced_exif_row_toggled_cb), listview);
 219 }
 220
 221 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gint sizable)
 222 {
 223         GtkTreeViewColumn *column;
 224         GtkCellRenderer *renderer;
 225
 226         column = gtk_tree_view_column_new();
 227         gtk_tree_view_column_set_title(column, title);
 228
 229         if (sizable)
 230                 {
 231                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 232                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 233                 gtk_tree_view_column_set_resizable(column, TRUE);
 234                 }
 235         else
 236                 {
 237                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 238                 }
 239
 240         renderer = gtk_cell_renderer_text_new();
 241         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 242         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 243         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 244 }
 245
 246 void advanced_exif_close(GtkWidget *window)
 247 {
 248         ExifWin *ew;
 249
 250         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 251         if (!ew) return;
 252
 253         gtk_widget_destroy(ew->vbox);
 254 }
 255
 256 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 257 {
 258         ExifWin *ew = data;
 259         file_data_unref(ew->fd);
 260         g_free(ew);
 261 }
 262
 263 GtkWidget *advanced_exif_new(void)
 264 {
 265         ExifWin *ew;
 266         GtkListStore *store;
 267         GdkGeometry geometry;
 268
 269         ew = g_new0(ExifWin, 1);
 270
 271
 272         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 273
 274         geometry.min_width = 900;
 275         geometry.min_height = 600;
 276         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 277
 278         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 279
 280         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 281         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 282                                G_CALLBACK(advanced_exif_destroy), ew);
 283
 284         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 285         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 286         gtk_widget_show(ew->vbox);
 287
 288
 289         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 290                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 291                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 292         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 293         g_object_unref(store);
 294
 295         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 296         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 297
 298         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_NAME);
 299
 300         advanced_exif_add_column_check(ew->listview, "", EXIF_ADVCOL_ENABLED);
 301
 302         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 303         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 304         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 305         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 306         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 307         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 308
 309         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 310         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 311         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 312                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 313         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 314         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 315         gtk_widget_show(ew->listview);
 316         gtk_widget_show(ew->scrolled);
 317
 318         gtk_widget_show(ew->window);
 319         return ew->window;
 320 }
 321 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */