+/**
+ * gtk_cell_layout_get_area:
+ * @cell_layout: a #GtkCellLayout
+ *
+ * Returns the underlying #GtkCellArea which might be @cell_layout
+ * if called on a #GtkCellArea or might be %NULL if no #GtkCellArea
+ * is used by @cell_layout.
+ *
+ * Return value: (transfer none): the cell area used by @cell_layout.
+ *
+ * Since: 3.0
+ */
+GtkCellArea *
+gtk_cell_layout_get_area (GtkCellLayout *cell_layout)
+{
+ GtkCellLayoutIface *iface;
+
+ g_return_val_if_fail (GTK_IS_CELL_LAYOUT (cell_layout), NULL);
+
+ iface = GTK_CELL_LAYOUT_GET_IFACE (cell_layout);
+ if (iface->get_area)
+ return iface->get_area (cell_layout);
+
+ return NULL;
+}
+
+/* Attribute parsing */
+typedef struct {
+ GtkCellLayout *cell_layout;
+ GtkCellRenderer *renderer;
+ gchar *attr_name;
+} AttributesSubParserData;
+
+static void
+attributes_start_element (GMarkupParseContext *context,
+ const gchar *element_name,
+ const gchar **names,
+ const gchar **values,
+ gpointer user_data,
+ GError **error)
+{
+ AttributesSubParserData *parser_data = (AttributesSubParserData*)user_data;
+ guint i;
+
+ if (strcmp (element_name, "attribute") == 0)
+ {
+ for (i = 0; names[i]; i++)
+ if (strcmp (names[i], "name") == 0)
+ parser_data->attr_name = g_strdup (values[i]);
+ }
+ else if (strcmp (element_name, "attributes") == 0)
+ return;
+ else
+ g_warning ("Unsupported tag for GtkCellLayout: %s\n", element_name);
+}
+
+static void
+attributes_text_element (GMarkupParseContext *context,
+ const gchar *text,
+ gsize text_len,
+ gpointer user_data,
+ GError **error)
+{
+ AttributesSubParserData *parser_data = (AttributesSubParserData*)user_data;
+ glong l;
+ gchar *endptr;
+ gchar *string;
+
+ if (!parser_data->attr_name)
+ return;
+
+ string = g_strndup (text, text_len);
+ errno = 0;
+ l = g_ascii_strtoll (string, &endptr, 0);
+ if (errno || endptr == string)
+ {
+ g_set_error (error,
+ GTK_BUILDER_ERROR,
+ GTK_BUILDER_ERROR_INVALID_VALUE,
+ "Could not parse integer `%s'",
+ string);
+ g_free (string);
+ return;
+ }
+ g_free (string);
+
+ gtk_cell_layout_add_attribute (parser_data->cell_layout,
+ parser_data->renderer,
+ parser_data->attr_name, l);
+ g_free (parser_data->attr_name);
+ parser_data->attr_name = NULL;
+}
+
+static const GMarkupParser attributes_parser =
+ {
+ attributes_start_element,
+ NULL,
+ attributes_text_element,
+ };
+
+
+/* Cell packing parsing */
+static void
+gtk_cell_layout_buildable_set_cell_property (GtkCellArea *area,
+ GtkBuilder *builder,
+ GtkCellRenderer *cell,
+ gchar *name,
+ const gchar *value)
+{
+ GParamSpec *pspec;
+ GValue gvalue = G_VALUE_INIT;
+ GError *error = NULL;
+
+ pspec = gtk_cell_area_class_find_cell_property (GTK_CELL_AREA_GET_CLASS (area), name);
+ if (!pspec)
+ {
+ g_warning ("%s does not have a property called %s",
+ g_type_name (G_OBJECT_TYPE (area)), name);
+ return;
+ }
+
+ if (!gtk_builder_value_from_string (builder, pspec, value, &gvalue, &error))
+ {
+ g_warning ("Could not read property %s:%s with value %s of type %s: %s",
+ g_type_name (G_OBJECT_TYPE (area)),
+ name,
+ value,
+ g_type_name (G_PARAM_SPEC_VALUE_TYPE (pspec)),
+ error->message);
+ g_error_free (error);
+ return;
+ }
+
+ gtk_cell_area_cell_set_property (area, cell, name, &gvalue);
+ g_value_unset (&gvalue);
+}
+
+typedef struct {
+ GtkBuilder *builder;
+ GtkCellLayout *cell_layout;
+ GtkCellRenderer *renderer;
+ GString *string;
+ gchar *cell_prop_name;
+ gchar *context;
+ gboolean translatable;
+} CellPackingSubParserData;
+
+static void
+cell_packing_start_element (GMarkupParseContext *context,
+ const gchar *element_name,
+ const gchar **names,
+ const gchar **values,
+ gpointer user_data,
+ GError **error)
+{
+ CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
+ guint i;
+
+ if (strcmp (element_name, "property") == 0)
+ {
+ for (i = 0; names[i]; i++)
+ if (strcmp (names[i], "name") == 0)
+ parser_data->cell_prop_name = g_strdup (values[i]);
+ else if (strcmp (names[i], "translatable") == 0)
+ {
+ if (!_gtk_builder_boolean_from_string (values[i],
+ &parser_data->translatable,
+ error))
+ return;
+ }
+ else if (strcmp (names[i], "comments") == 0)
+ ; /* for translators */
+ else if (strcmp (names[i], "context") == 0)
+ parser_data->context = g_strdup (values[i]);
+ else
+ g_warning ("Unsupported attribute for GtkCellLayout Cell "
+ "property: %s\n", names[i]);
+ }
+ else if (strcmp (element_name, "cell-packing") == 0)
+ return;
+ else
+ g_warning ("Unsupported tag for GtkCellLayout: %s\n", element_name);
+}
+
+static void
+cell_packing_text_element (GMarkupParseContext *context,
+ const gchar *text,
+ gsize text_len,
+ gpointer user_data,
+ GError **error)
+{
+ CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
+
+ if (parser_data->cell_prop_name)
+ g_string_append_len (parser_data->string, text, text_len);
+}
+
+static void
+cell_packing_end_element (GMarkupParseContext *context,
+ const gchar *element_name,
+ gpointer user_data,
+ GError **error)
+{
+ CellPackingSubParserData *parser_data = (CellPackingSubParserData*)user_data;
+ GtkCellArea *area;
+
+ area = gtk_cell_layout_get_area (parser_data->cell_layout);
+
+ if (area)
+ {
+ /* translate the string */
+ if (parser_data->string->len && parser_data->translatable)
+ {
+ gchar *translated;
+ const gchar* domain;
+
+ domain = gtk_builder_get_translation_domain (parser_data->builder);
+
+ translated = _gtk_builder_parser_translate (domain,
+ parser_data->context,
+ parser_data->string->str);
+ g_string_set_size (parser_data->string, 0);
+ g_string_append (parser_data->string, translated);
+ }
+
+ if (parser_data->cell_prop_name)
+ gtk_cell_layout_buildable_set_cell_property (area,
+ parser_data->builder,
+ parser_data->renderer,
+ parser_data->cell_prop_name,
+ parser_data->string->str);
+ }
+ else
+ g_warning ("%s does not have an internal GtkCellArea class and cannot apply child cell properties",
+ g_type_name (G_OBJECT_TYPE (parser_data->cell_layout)));
+
+ g_string_set_size (parser_data->string, 0);
+ g_free (parser_data->cell_prop_name);
+ g_free (parser_data->context);
+ parser_data->cell_prop_name = NULL;
+ parser_data->context = NULL;
+ parser_data->translatable = FALSE;
+}
+
+
+static const GMarkupParser cell_packing_parser =
+ {
+ cell_packing_start_element,
+ cell_packing_end_element,
+ cell_packing_text_element,
+ };
+
+gboolean
+_gtk_cell_layout_buildable_custom_tag_start (GtkBuildable *buildable,
+ GtkBuilder *builder,
+ GObject *child,
+ const gchar *tagname,
+ GMarkupParser *parser,
+ gpointer *data)
+{
+ AttributesSubParserData *attr_data;
+ CellPackingSubParserData *packing_data;
+
+ if (!child)
+ return FALSE;
+
+ if (strcmp (tagname, "attributes") == 0)
+ {
+ attr_data = g_slice_new0 (AttributesSubParserData);
+ attr_data->cell_layout = GTK_CELL_LAYOUT (buildable);
+ attr_data->renderer = GTK_CELL_RENDERER (child);
+ attr_data->attr_name = NULL;
+
+ *parser = attributes_parser;
+ *data = attr_data;
+ return TRUE;
+ }
+ else if (strcmp (tagname, "cell-packing") == 0)
+ {
+ packing_data = g_slice_new0 (CellPackingSubParserData);
+ packing_data->string = g_string_new ("");
+ packing_data->builder = builder;
+ packing_data->cell_layout = GTK_CELL_LAYOUT (buildable);
+ packing_data->renderer = GTK_CELL_RENDERER (child);
+
+ *parser = cell_packing_parser;
+ *data = packing_data;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+gboolean
+_gtk_cell_layout_buildable_custom_tag_end (GtkBuildable *buildable,
+ GtkBuilder *builder,
+ GObject *child,
+ const gchar *tagname,
+ gpointer *data)
+{
+ AttributesSubParserData *attr_data;
+ CellPackingSubParserData *packing_data;
+
+ if (strcmp (tagname, "attributes") == 0)
+ {
+ attr_data = (AttributesSubParserData*)data;
+ g_assert (!attr_data->attr_name);
+ g_slice_free (AttributesSubParserData, attr_data);
+ return TRUE;
+ }
+ else if (strcmp (tagname, "cell-packing") == 0)
+ {
+ packing_data = (CellPackingSubParserData *)data;
+ g_string_free (packing_data->string, TRUE);
+ g_slice_free (CellPackingSubParserData, packing_data);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void
+_gtk_cell_layout_buildable_add_child (GtkBuildable *buildable,
+ GtkBuilder *builder,
+ GObject *child,
+ const gchar *type)
+{
+ g_return_if_fail (GTK_IS_CELL_LAYOUT (buildable));
+ g_return_if_fail (GTK_IS_CELL_RENDERER (child));
+
+ gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (buildable), GTK_CELL_RENDERER (child), FALSE);
+}