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         gchar *sel_key;
  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 gint 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         advanced_exif_clear(ew);
 163         advanced_exif_update(ew);
 164 }
 165
 166 #if 0
 167 static void advanced_exif_row_toggled_cb(GtkCellRendererToggle *toggle, const gchar *path, gpointer data)
 168 {
 169         GtkWidget *listview = data;
 170         GtkTreeModel *store;
 171         GtkTreeIter iter;
 172         GtkTreePath *tpath;
 173         gchar *name = NULL;
 174         gboolean active;
 175
 176         store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 177
 178         tpath = gtk_tree_path_new_from_string(path);
 179         gtk_tree_model_get_iter(store, &iter, tpath);
 180         gtk_tree_path_free(tpath);
 181
 182         gtk_tree_model_get(store, &iter, EXIF_ADVCOL_ENABLED, &active,
 183                                          EXIF_ADVCOL_NAME, &name, -1);
 184         active = (!active);
 185
 186         if (active &&
 187             g_list_length(history_list_get_by_key("exif_extras")) >= EXIF_BAR_CUSTOM_COUNT)
 188                 {
 189                 active = FALSE;
 190                 }
 191
 192         gtk_list_store_set(GTK_LIST_STORE(store), &iter, EXIF_ADVCOL_ENABLED, active, -1);
 193
 194         if (active)
 195                 {
 196                 history_list_add_to_key("exif_extras", name, EXIF_BAR_CUSTOM_COUNT);
 197                 }
 198         else
 199                 {
 200                 history_list_item_change("exif_extras", name, NULL);
 201                 }
 202
 203         g_free(name);
 204 }
 205 #endif
 206
 207 #if 0
 208 static void advanced_exif_add_column_check(GtkWidget *listview, const gchar *title, gint n)
 209 {
 210         GtkTreeViewColumn *column;
 211         GtkCellRenderer *renderer;
 212
 213         column = gtk_tree_view_column_new();
 214         gtk_tree_view_column_set_title(column, title);
 215         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 216
 217         renderer = gtk_cell_renderer_toggle_new();
 218         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 219         gtk_tree_view_column_add_attribute(column, renderer, "active", n);
 220         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 221
 222         g_signal_connect(G_OBJECT(renderer), "toggled",
 223                          G_CALLBACK(advanced_exif_row_toggled_cb), listview);
 224 }
 225 #endif
 226
 227 static GtkTargetEntry advanced_exif_drag_types[] = {
 228         { "text/plain", 0, TARGET_TEXT_PLAIN }
 229 };
 230 static gint n_exif_drag_types = 1;
 231
 232
 233 static void advanced_exif_dnd_get(GtkWidget *entry, GdkDragContext *context,
 234                                      GtkSelectionData *selection_data, guint info,
 235                                      guint time, gpointer data)
 236 {
 237         ExifWin *ew = data;
 238
 239         gtk_selection_data_set_text(selection_data, ew->sel_key, -1);
 240 }
 241
 242 static void advanced_exif_dnd_begin(GtkWidget *listview, GdkDragContext *context, gpointer data)
 243 {
 244         ExifWin *ew = data;
 245         GtkTreeSelection *sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(listview));
 246         GtkTreeIter iter;
 247         ew->sel_key = NULL;
 248
 249         if (gtk_tree_selection_get_selected(sel, NULL, &iter))
 250                 {
 251                 GtkTreeModel *store = gtk_tree_view_get_model(GTK_TREE_VIEW(listview));
 252
 253                 gtk_tree_model_get(store, &iter, EXIF_ADVCOL_NAME, &ew->sel_key, -1);
 254                 printf("%s\n",ew->sel_key);
 255                 }
 256
 257 }
 258
 259 static void advanced_exif_dnd_end(GtkWidget *widget, GdkDragContext *context, gpointer data)
 260 {
 261         ExifWin *ew = data;
 262         g_free(ew->sel_key);
 263         ew->sel_key = NULL;
 264 }
 265
 266
 267 static void advanced_exif_add_column(GtkWidget *listview, const gchar *title, gint n, gint sizable)
 268 {
 269         GtkTreeViewColumn *column;
 270         GtkCellRenderer *renderer;
 271
 272         column = gtk_tree_view_column_new();
 273         gtk_tree_view_column_set_title(column, title);
 274
 275         if (sizable)
 276                 {
 277                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_FIXED);
 278                 gtk_tree_view_column_set_fixed_width(column, ADVANCED_EXIF_DATA_COLUMN_WIDTH);
 279                 gtk_tree_view_column_set_resizable(column, TRUE);
 280                 }
 281         else
 282                 {
 283                 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 284                 }
 285
 286         renderer = gtk_cell_renderer_text_new();
 287         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 288         gtk_tree_view_column_add_attribute(column, renderer, "text", n);
 289         gtk_tree_view_append_column(GTK_TREE_VIEW(listview), column);
 290 }
 291
 292 void advanced_exif_close(GtkWidget *window)
 293 {
 294         ExifWin *ew;
 295
 296         ew = g_object_get_data(G_OBJECT(window), "advanced_exif_data");
 297         if (!ew) return;
 298
 299         gtk_widget_destroy(ew->vbox);
 300 }
 301
 302 static void advanced_exif_destroy(GtkWidget *widget, gpointer data)
 303 {
 304         ExifWin *ew = data;
 305         file_data_unref(ew->fd);
 306         g_free(ew);
 307 }
 308
 309 GtkWidget *advanced_exif_new(void)
 310 {
 311         ExifWin *ew;
 312         GtkListStore *store;
 313         GdkGeometry geometry;
 314
 315         ew = g_new0(ExifWin, 1);
 316
 317
 318         ew->window = window_new(GTK_WINDOW_TOPLEVEL, "view", NULL, NULL, _("Metadata"));
 319
 320         geometry.min_width = 900;
 321         geometry.min_height = 600;
 322         gtk_window_set_geometry_hints(GTK_WINDOW(ew->window), NULL, &geometry, GDK_HINT_MIN_SIZE);
 323
 324         gtk_window_set_resizable(GTK_WINDOW(ew->window), TRUE);
 325
 326         g_object_set_data(G_OBJECT(ew->window), "advanced_exif_data", ew);
 327         g_signal_connect_after(G_OBJECT(ew->window), "destroy",
 328                                G_CALLBACK(advanced_exif_destroy), ew);
 329
 330         ew->vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
 331         gtk_container_add(GTK_CONTAINER(ew->window), ew->vbox);
 332         gtk_widget_show(ew->vbox);
 333
 334
 335         store = gtk_list_store_new(7, G_TYPE_BOOLEAN,
 336                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
 337                                       G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
 338         ew->listview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
 339         g_object_unref(store);
 340
 341         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ew->listview), TRUE);
 342         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(ew->listview), TRUE);
 343
 344         gtk_tree_view_set_search_column(GTK_TREE_VIEW(ew->listview), EXIF_ADVCOL_NAME);
 345
 346 //      advanced_exif_add_column_check(ew->listview, "", EXIF_ADVCOL_ENABLED);
 347
 348         advanced_exif_add_column(ew->listview, _("Description"), EXIF_ADVCOL_DESCRIPTION, FALSE);
 349         advanced_exif_add_column(ew->listview, _("Value"), EXIF_ADVCOL_VALUE, TRUE);
 350         advanced_exif_add_column(ew->listview, _("Name"), EXIF_ADVCOL_NAME, FALSE);
 351         advanced_exif_add_column(ew->listview, _("Tag"), EXIF_ADVCOL_TAG, FALSE);
 352         advanced_exif_add_column(ew->listview, _("Format"), EXIF_ADVCOL_FORMAT, FALSE);
 353         advanced_exif_add_column(ew->listview, _("Elements"), EXIF_ADVCOL_ELEMENTS, FALSE);
 354
 355         gtk_tree_view_enable_model_drag_source(GTK_TREE_VIEW(ew->listview),
 356                                                GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
 357                                                advanced_exif_drag_types, n_exif_drag_types,
 358                                                GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
 359
 360         g_signal_connect(G_OBJECT(ew->listview), "drag_data_get",
 361                          G_CALLBACK(advanced_exif_dnd_get), ew);
 362
 363         g_signal_connect(G_OBJECT(ew->listview), "drag_begin",
 364                          G_CALLBACK(advanced_exif_dnd_begin), ew);
 365         g_signal_connect(G_OBJECT(ew->listview), "drag_end",
 366                          G_CALLBACK(advanced_exif_dnd_end), ew);
 367
 368         ew->scrolled = gtk_scrolled_window_new(NULL, NULL);
 369         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(ew->scrolled), GTK_SHADOW_IN);
 370         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(ew->scrolled),
 371                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 372         gtk_box_pack_start(GTK_BOX(ew->vbox), ew->scrolled, TRUE, TRUE, 0);
 373         gtk_container_add(GTK_CONTAINER(ew->scrolled), ew->listview);
 374         gtk_widget_show(ew->listview);
 375         gtk_widget_show(ew->scrolled);
 376
 377         gtk_widget_show(ew->window);
 378         return ew->window;
 379 }
 380 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */