C++ G_TYPE_FROM_INSTANCE函数代码示例

static GHashTable *
gum_sanity_checker_count_leaks_by_type_name (GumSanityChecker * self,
                                             GList * instances)
{
  GHashTable * count_by_type;
  const GumInstanceVTable * vtable;
  GList * cur;

  count_by_type = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, NULL);

  vtable =
      gum_instance_tracker_get_current_vtable (self->priv->instance_tracker);

  for (cur = instances; cur != NULL; cur = cur->next)
  {
    const gchar * type_name;
    guint count;

    type_name = vtable->type_id_to_name (G_TYPE_FROM_INSTANCE (cur->data));
    count = GPOINTER_TO_UINT (g_hash_table_lookup (count_by_type,
        type_name));
    count++;
    g_hash_table_insert (count_by_type, (gpointer) type_name,
        GUINT_TO_POINTER (count));
  }

  return count_by_type;
}

/**
 * shell_dir_info_equal:
 * @dirinfo1: the first #ShellDirInfo.
 * @dirinfo2: the second #ShellDirInfo.
 *
 * Checks if two #ShellDirInfo<!-- -->s are equal.
 *
 * Returns: %TRUE if @dirinfo1 is equal to @dirinfo2. %FALSE otherwise.
 **/
gboolean
shell_dir_info_equal (ShellDirInfo *dirinfo1,
                      ShellDirInfo *dirinfo2)
{
  ShellDirInfoIface *iface;

  g_return_val_if_fail (SHELL_IS_DIR_INFO (dirinfo1), FALSE);
  g_return_val_if_fail (SHELL_IS_DIR_INFO (dirinfo2), FALSE);

  if (G_TYPE_FROM_INSTANCE (dirinfo1) != G_TYPE_FROM_INSTANCE (dirinfo2))
    return FALSE;
  
  iface = SHELL_DIR_INFO_GET_IFACE (dirinfo1);

  return (* iface->equal) (dirinfo1, dirinfo2);
}

/* Converts items from one image to another */
static void
file_open_convert_items (GimpImage   *dest_image,
                         const gchar *basename,
                         GList       *items)
{
  GList *list;

  for (list = items; list; list = g_list_next (list))
    {
      GimpItem *src = list->data;
      GimpItem *item;

      item = gimp_item_convert (src, dest_image, G_TYPE_FROM_INSTANCE (src));

      if (g_list_length (items) == 1)
        {
          gimp_object_set_name (GIMP_OBJECT (item), basename);
        }
      else
        {
          gimp_object_set_name (GIMP_OBJECT (item),
                                gimp_object_get_name (src));
        }

      list->data = item;
    }
}

#line 341 "DictionaryEntry.c"
	}
}


void system_collections_value_take_dictionary_entry (GValue* value, gpointer v_object) {
	SystemCollectionsDictionaryEntry* old;
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
	g_return_if_fail (G_TYPE_CHECK_VALUE_TYPE (value, SYSTEM_COLLECTIONS_TYPE_DICTIONARY_ENTRY));
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
	old = value->data[0].v_pointer;
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
	if (v_object) {
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
		g_return_if_fail (G_TYPE_CHECK_INSTANCE_TYPE (v_object, SYSTEM_COLLECTIONS_TYPE_DICTIONARY_ENTRY));
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
		g_return_if_fail (g_value_type_compatible (G_TYPE_FROM_INSTANCE (v_object), G_VALUE_TYPE (value)));
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
		value->data[0].v_pointer = v_object;
#line 360 "DictionaryEntry.c"
	} else {
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
		value->data[0].v_pointer = NULL;
#line 364 "DictionaryEntry.c"
	}
#line 24 "/home/developer/projects/Backup/LibDotNet/src/System/Collections/DictionaryEntry.vala"
	if (old) {

static void
import_dialog_drop_callback (GtkWidget    *widget,
                             gint          x,
                             gint          y,
                             GimpViewable *viewable,
                             gpointer      data)
{
  ImportDialog *dialog = data;

  gimp_context_set_by_type (dialog->context,
                            G_TYPE_FROM_INSTANCE (viewable),
                            GIMP_OBJECT (viewable));

  if (GIMP_IS_GRADIENT (viewable) &&
      dialog->import_type != GRADIENT_IMPORT)
    {
      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->gradient_radio),
                                    TRUE);
    }
  else if (GIMP_IS_IMAGE (viewable) &&
           dialog->import_type != IMAGE_IMPORT)
    {
      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dialog->image_radio),
                                    TRUE);
    }
}

static void on_listbox_row_changed(GtkTreeModel*       model,
                                   GtkTreePath*        path,
                                   GtkTreeIter*        iter,
                                   PrivateListBoxData* data)
{
    GtkListBoxRow* row = gtk_list_box_get_row_at_index(data->widget, gtk_tree_path_get_indices(path)[0]);
    if(row)
    {
        GtkWidget* content = gtk_bin_get_child(GTK_BIN(row));
        for(GSList* item = data->model_bindings; item != NULL; item = item->next)
        {
            const ModelPropertyBinding* bind = item->data;
            GValue value = G_VALUE_INIT;
            gtk_tree_model_get_value(GTK_TREE_MODEL(model), iter, bind->column, &value);
            if(bind->widget)
            {
                GObject* child = gtk_widget_get_template_child(content, G_TYPE_FROM_INSTANCE(content), bind->widget);
                if(child)
                    g_object_set_property(child, bind->prop, &value);
            }
            else
                g_object_set_property(G_OBJECT(content), bind->prop, &value);
            g_value_unset(&value);
        }
    }
}

/**
 * polkit_backend_session_monitor_get_session_for_subject:
 * @monitor: A #PolkitBackendSessionMonitor.
 * @subject: A #PolkitSubject.
 * @error: Return location for error.
 *
 * Gets the session corresponding to @subject or %NULL if no session exists.
 *
 * Returns: %NULL if @error is set otherwise a #PolkitUnixSession that should be freed with g_object_unref().
 */
PolkitSubject *
polkit_backend_session_monitor_get_session_for_subject (PolkitBackendSessionMonitor *monitor,
                                                        PolkitSubject               *subject,
                                                        GError                     **error)
{
  PolkitUnixProcess *tmp_process = NULL;
  PolkitUnixProcess *process = NULL;
  PolkitSubject *session = NULL;
  char *session_id = NULL;
  pid_t pid;
#if HAVE_SD_UID_GET_DISPLAY
  uid_t uid;
#endif

  if (POLKIT_IS_UNIX_PROCESS (subject))
    process = POLKIT_UNIX_PROCESS (subject); /* We already have a process */
  else if (POLKIT_IS_SYSTEM_BUS_NAME (subject))
    {
      /* Convert bus name to process */
      tmp_process = (PolkitUnixProcess*)polkit_system_bus_name_get_process_sync (POLKIT_SYSTEM_BUS_NAME (subject), NULL, error);
      if (!tmp_process)
	goto out;
      process = tmp_process;
    }
  else
    {
      g_set_error (error,
                   POLKIT_ERROR,
                   POLKIT_ERROR_NOT_SUPPORTED,
                   "Cannot get session for subject of type %s",
                   g_type_name (G_TYPE_FROM_INSTANCE (subject)));
    }

  /* Now do process -> pid -> same session */
  g_assert (process != NULL);
  pid = polkit_unix_process_get_pid (process);

  if (sd_pid_get_session (pid, &session_id) >= 0)
    {
      session = polkit_unix_session_new (session_id);
      goto out;
    }

#if HAVE_SD_UID_GET_DISPLAY
  /* Now do process -> uid -> graphical session (systemd version 213)*/
  if (sd_pid_get_owner_uid (pid, &uid) < 0)
    goto out;

  if (sd_uid_get_display (uid, &session_id) >= 0)
    {
      session = polkit_unix_session_new (session_id);
      goto out;
    }
#endif

 out:
  free (session_id);
  if (tmp_process) g_object_unref (tmp_process);
  return session;
}

static void
_do_test(AtkObject *obj)
{
   const char *type_name = g_type_name(G_TYPE_FROM_INSTANCE(obj));
   AtkStateSet *state_set = atk_object_ref_state_set(obj);

   g_assert_cmpstr(type_name, ==, "EailLabel");

   /**
    * AtkText tests
    */
   g_assert(ATK_IS_TEXT(obj));

   g_assert(atk_state_set_contains_state(state_set, ATK_STATE_MULTI_LINE));
   g_object_unref(state_set);

   /* atk_text_get_text */
   gchar *text = atk_text_get_text(ATK_TEXT(obj), 6, 11);
   g_assert_cmpstr(text, ==, "ipsum");
   g_free(text);

   /* atk_text_get_character_at_offset */
   g_assert(atk_text_get_character_at_offset(ATK_TEXT(obj), 12) == 'd');

   /* atk_text_get_character_count */
   g_assert(atk_text_get_character_count(ATK_TEXT(obj)) == 440);
}

static void
edited_callback (GtkCellRendererText *renderer,
		 const gchar   *path_string,
		 const gchar   *new_text,
		 GtkTreeView  *tree_view)
{
  GtkTreeModel *model = NULL;
  GtkTreeModelSort *sort_model = NULL;
  GtkTreePath *path;
  GtkTreeIter iter;
  guint value = atoi (new_text);
  
  g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));

  model = gtk_tree_view_get_model (tree_view);
  
  if (GTK_IS_TREE_MODEL_SORT (model))
    {
      sort_model = GTK_TREE_MODEL_SORT (model);
      model = gtk_tree_model_sort_get_model (sort_model);
    }

  if (model == NULL)
    return;

  if (sort_model)
    {
      g_warning ("FIXME implement conversion from TreeModelSort iter to child model iter");
      return;
    }
      
  path = gtk_tree_path_new_from_string (path_string);
  if (!gtk_tree_model_get_iter (model,
                                &iter, path))
    {
      g_warning ("%s: bad path?", G_STRLOC);
      return;
    }
  gtk_tree_path_free (path);

  if (GTK_IS_LIST_STORE (model))
    {
      gtk_list_store_set (GTK_LIST_STORE (model),
                          &iter,
                          4,
                          value,
                          -1);
    }
  else if (GTK_IS_TREE_STORE (model))
    {
      gtk_tree_store_set (GTK_TREE_STORE (model),
                          &iter,
                          4,
                          value,
                          -1);
    }
  else
    g_warning ("don't know how to actually toggle value for model type %s",
               g_type_name (G_TYPE_FROM_INSTANCE (model)));
}

GtkWidget *
gimp_view_new_full (GimpContext  *context,
                    GimpViewable *viewable,
                    gint          width,
                    gint          height,
                    gint          border_width,
                    gboolean      is_popup,
                    gboolean      clickable,
                    gboolean      show_popup)
{
  GtkWidget *view;

  g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
  g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), NULL);

  view = gimp_view_new_full_by_types (context,
                                      GIMP_TYPE_VIEW,
                                      G_TYPE_FROM_INSTANCE (viewable),
                                      width, height, border_width,
                                      is_popup, clickable, show_popup);

  if (view)
    gimp_view_set_viewable (GIMP_VIEW (view), viewable);

  gimp_view_renderer_remove_idle (GIMP_VIEW (view)->renderer);

  return view;
}

void
gom_resource_build_save_cmd (GomResource *resource,
                             GomAdapter  *adapter)
{
   GomCommandBuilder *builder;
   gboolean has_pkey, is_insert;
   GSList *types = NULL;
   GSList *iter;
   GType resource_type;
   GList *cmds = NULL;

   resource_type = G_TYPE_FROM_INSTANCE(resource);
   g_assert(g_type_is_a(resource_type, GOM_TYPE_RESOURCE));

   builder = g_object_new(GOM_TYPE_COMMAND_BUILDER,
                          "adapter", adapter,
                          NULL);

   has_pkey = has_primary_key(resource);
   if (has_pkey) {
     /* Could be an insert for a non-automatic primary key,
      * or an update */
     is_insert = !resource->priv->is_from_table;
   } else {
     is_insert = TRUE;
   }

   g_object_set_data (G_OBJECT (resource), "is-insert", GINT_TO_POINTER (is_insert));

   do {
      types = g_slist_prepend(types, GINT_TO_POINTER(resource_type));
   } while ((resource_type = g_type_parent(resource_type)) != GOM_TYPE_RESOURCE);

   for (iter = types; iter; iter = iter->next) {
      GomCommand *command;

      resource_type = GPOINTER_TO_INT(iter->data);

      g_object_set(builder,
                   "resource-type", resource_type,
                   NULL);

      if (is_insert) {
         command = gom_command_builder_build_insert(builder, resource);
      } else {
         command = gom_command_builder_build_update(builder, resource);
      }

      if (is_insert && gom_resource_has_dynamic_pkey(resource_type))
        is_insert = FALSE;

      cmds = g_list_prepend (cmds, command);
   }

   cmds = g_list_reverse (cmds);
   g_object_set_data_full (G_OBJECT(resource), "save-commands", cmds, free_save_cmds);

   g_slist_free(types);
   g_object_unref (builder);
}

static gboolean
gom_resource_do_delete (GomResource  *resource,
                        GomAdapter   *adapter,
                        GError      **error)
{
   GomCommandBuilder *builder;
   GType resource_type;

   g_return_val_if_fail(GOM_IS_RESOURCE(resource), FALSE);
   g_return_val_if_fail(GOM_IS_ADAPTER(adapter), FALSE);

   resource_type = G_TYPE_FROM_INSTANCE(resource);
   builder = g_object_new(GOM_TYPE_COMMAND_BUILDER,
                          "adapter", adapter,
                          NULL);

   do {
      GomResourceClass *klass;
      GParamSpec *pspec;
      GomCommand *command;
      GomFilter *filter;
      GArray *values;
      GValue value = { 0 };
      gchar *sql;

      klass = g_type_class_peek(resource_type);
      g_assert(GOM_IS_RESOURCE_CLASS(klass));

      pspec = g_object_class_find_property(G_OBJECT_CLASS(klass),
                                           klass->primary_key);
      g_assert(pspec);

      g_value_init(&value, pspec->value_type);
      g_object_get_property(G_OBJECT(resource), klass->primary_key, &value);
      sql = g_strdup_printf("'%s'.'%s' = ?", klass->table, klass->primary_key);
      values = g_array_sized_new(FALSE, FALSE, sizeof(GValue), 1);
      g_array_append_val(values, value);
      filter = gom_filter_new_sql(sql, values);
      g_free(sql);
      memset(&value, 0, sizeof value);
      g_array_unref(values);
      g_object_set(builder,
                   "filter", filter,
                   "resource-type", resource_type,
                   NULL);
      g_object_unref(filter);

      command = gom_command_builder_build_delete(builder);
      if (!gom_command_execute(command, NULL, error)) {
         g_object_unref(command);
         g_object_unref(builder);
         return FALSE;
      }
      g_object_unref(command);
   } while ((resource_type = g_type_parent(resource_type)) != GOM_TYPE_RESOURCE);

   g_object_unref(builder);

   return TRUE;
}

static void
ppg_instrument_set_session (PpgInstrument *instrument,
                            PpgSession    *session)
{
	PpgInstrumentClass *klass;
	PpgInstrumentPrivate *priv;
	GError *error = NULL;

	g_return_if_fail(PPG_IS_INSTRUMENT(instrument));
	g_return_if_fail(PPG_IS_SESSION(session));

	priv = instrument->priv;
	klass = PPG_INSTRUMENT_GET_CLASS(instrument);

	priv->session = session;
	g_object_add_weak_pointer(G_OBJECT(priv->session), (gpointer *)&priv->session);

	if (klass->load) {
		if (!klass->load(instrument, session, &error)) {
			priv->failed = TRUE;
			g_critical("Failed to load instrument %s: %s",
			           g_type_name(G_TYPE_FROM_INSTANCE(instrument)),
			           error->message);
			/*
			 * XXX: Should we store the error?
			 */
			g_error_free(error);
			return;
		}
	}
}

/**
 * fo_object_sprintf:
 * @object: The #FoObject object.
 * 
 * Calls sprintf method of class of @object, if @object is an
 * #FoObject or descendant type of #FoObject.
 *
 * Return value: Result of sprintf method of class of @object.
 **/
gchar*
fo_object_sprintf (gpointer object)
{
  if (object == NULL)
    {
      return g_strdup ("(null)");
    }
  else if (!G_IS_OBJECT (object))
    {
      return g_strdup_printf ("Not a GObject: %p",
			      object);
    }
  else if (!FO_IS_OBJECT (object))
    {
      return g_strdup_printf ("GObject but not an FoObject:: %s (%p : %d%s)",
			      g_type_name (G_TYPE_FROM_INSTANCE (object)),
			      object,
			      ((GObject *) object)->ref_count,
			      g_object_is_floating (object) ? " (floating)" : "");
    }
  else
    {
      return FO_OBJECT_GET_CLASS (object)->print_sprintf (object);
    }
}

/**
 * fo_property_space_start_minimum_validate:
 * @datatype: #FoDatatype to be validated against allowed datatypes and
 *            values for current property.
 * @context:  #FoContext object from which to possibly inherit values.
 * @error:    Information about any error that has occurred.
 * 
 * Validates @datatype against allowed values.  Returns @datatype, a
 * replacement datatype value, or NULL if validation failed.
 * 
 * Return value: Valid datatype value or NULL.
 **/
FoDatatype*
fo_property_space_start_minimum_validate (FoDatatype *datatype,
                                           FoContext  *context,
                                           GError    **error)
{
  g_return_val_if_fail (datatype != NULL, NULL);
  g_return_val_if_fail (FO_IS_DATATYPE (datatype), NULL);
  g_return_val_if_fail (context != NULL, NULL);
  g_return_val_if_fail (FO_IS_CONTEXT (context), NULL);
  g_return_val_if_fail (error == NULL || *error == NULL, NULL);

  if (FO_IS_LENGTH (datatype))
    {
      return datatype;
    }
  else
    {
      gchar *datatype_sprintf = fo_object_sprintf (datatype);

      g_set_error (error,
		   FO_FO_ERROR,
		   FO_FO_ERROR_DATATYPE,
		   _(fo_fo_error_messages[FO_FO_ERROR_DATATYPE]),
		   class_name,
		   datatype_sprintf,
		   g_type_name (G_TYPE_FROM_INSTANCE (datatype)));

      g_object_unref (datatype);

      g_free (datatype_sprintf);

      return NULL;
    }
}