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

glibmm 2.44.0

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Public Types | Static Public Member Functions | List of all members
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);
}

or

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();

## Member Typedef Documentation

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

typedef T Glib::ListHandler< T, Tr >::CppType

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

typedef Tr::CType Glib::ListHandler< T, Tr >::CType

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

typedef Glib::Container_Helpers::GListKeeper<Tr> Glib::ListHandler< T, Tr >::GListKeeperType

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

typedef Glib::Container_Helpers::ListIterator<Tr> Glib::ListHandler< T, Tr >::ListIteratorType

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

typedef std::vector<CppType> Glib::ListHandler< T, Tr >::VectorType

## Member Function Documentation

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

static VectorType Glib::ListHandler< T, Tr >::list_to_vector | ( | GList * | glist,
|  | Glib::OwnershipType | ownership
| ) |  |
| static

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

static GListKeeperType Glib::ListHandler< T, Tr >::vector_to_list | ( | const VectorType& | vector | ) |
| static