glibmm: Glib::ListHandler< T, Tr > Class Template Reference

A utility for converting between std::vector and GList. More...

#include <glibmm/vectorutils.h>

Public Types
typedef Tr::CType	CType

typedef T	CppType

typedef std::vector< CppType >	VectorType

typedef Glib::Container_Helpers::GListKeeper < Tr >	GListKeeperType

typedef Glib::Container_Helpers::ListIterator < Tr >	ListIteratorType

Static Public Member Functions
static VectorType	list_to_vector (GList* glist, Glib::OwnershipType ownership)

static GListKeeperType	vector_to_list (const VectorType& vector)

Detailed Description

template<typename T, typename Tr = Glib::Container_Helpers::TypeTraits<T>>

class Glib::ListHandler< T, Tr >

A utility for converting between std::vector and GList.

This would normally only be used by glibmm or gtkmm itself, or similar libraries that wrap C APIs.

For instance:

std::vector< Glib::RefPtr<Window> > Window::get_children()
{
  return Glib::ListHandler<Glib::RefPtr<Window> >::list_to_vector(gdk_window_get_children(gobj()), Glib::OWNERSHIP_SHALLOW);
}

void Window::set_icon_list(const std::vector< Glib::RefPtr<Gdk::Pixbuf> >& pixbufs)
{
  gdk_window_set_icon_list(gobj(), Glib::ListHandler<Glib::RefPtr<Gdk::Pixbuf> >::vector_to_list(pixbufs).data ());
}

Note that usage below is wrong - data() returns a pointer to data owned by a temporary ListKeeper returned by vector_to_list(), which is destroyed at the end of this instruction. For details, see Glib::ListKeeper.

GList* glist = Glib::ListHandler<Glib::RefPtr<Gdk::Pixbuf> >::vector_to_list(pixbufs).data();