show the rating as a sequence of stars

gthumb/gth-file-data.c

@@ -534,7 +534,18 @@ gth_file_data_get_attribute_as_string (GthFileData *file_data,
 		if (GTH_IS_METADATA (obj)) {
 			switch (gth_metadata_get_data_type (GTH_METADATA (obj))) {
 			case GTH_METADATA_TYPE_STRING:
-				value = g_strdup (gth_metadata_get_formatted (GTH_METADATA (obj)));
+				if (strcmp (id, "general::rating") == 0) {
+					int n = atoi (gth_metadata_get_formatted (GTH_METADATA (obj)));
+					if ((n >= 0) && (n <= 5)) {
+						GString *str = g_string_new ("");
+						int      i;
+						for (i = 1; i <= n; i++)
+							g_string_append (str, "⭐");
+						value = g_string_free (str, FALSE);
+					}
+				}
+				if (value == NULL)
+					value = g_strdup (gth_metadata_get_formatted (GTH_METADATA (obj)));
 				break;
 			case GTH_METADATA_TYPE_STRING_LIST:
 				value = gth_string_list_join (GTH_STRING_LIST (gth_metadata_get_string_list (GTH_METADATA (obj))), " ");

gthumb/gth-grid-view.c

@@ -298,6 +298,7 @@ gth_grid_view_item_update_caption (GthGridViewItem  *item,
 		value = gth_file_data_get_attribute_as_string (item->file_data, attributes_v[i]);
 		if ((value != NULL) && ! g_str_equal (value, "")) {
 			char *escaped;
+			char *style;
 
 			if (metadata->len > 0)
 				g_string_append (metadata, "\n");
@@ -313,7 +314,11 @@ gth_grid_view_item_update_caption (GthGridViewItem  *item,
 			}
 
 			escaped = g_markup_escape_text (value, -1);
-			g_string_append_printf (metadata, "<span%s>%s</span>", (odd ? ODD_ROW_ATTR_STYLE : EVEN_ROW_ATTR_STYLE), escaped);
+			if (strcmp (attributes_v[i], "general::rating") == 0)
+				style = "";
+			else
+				style = (odd ? ODD_ROW_ATTR_STYLE : EVEN_ROW_ATTR_STYLE);
+			g_string_append_printf (metadata, "<span%s>%s</span>", style, escaped);
 
 			g_free (escaped);
 		}