namespace lyx {
namespace graphics {
-struct Loader::Impl : boost::signals::trackable {
+class Loader::Impl : public boost::signals::trackable {
+public:
///
Impl();
///
/// We modify a local copy of the image once it is loaded.
Image::ImagePtr image_;
/// This signal is emitted when the image loading status changes.
- boost::signal0<void> signal_;
+ boost::signal<void()> signal_;
private:
///