ANNOUNCE: glibmm 2.38.0

*** glibmm:

gtkmm 2.38 wraps glib 2.38.

glibmm stays in-sync with glib by following the official GNOME release schedule:

*** Changes

Changes in glibmm 2.38 compared to 2.36:

* Object: Add interfaces to custom types before class_init.
  This deprecates the use of Glib::Object as a base class
  anywhere but in the last in the list of base classes when
  implementing an interface, such as TreeModel or 
  Having it, for instance, as the first base class,
  is unfortunately likely to break with glib 3.40.
  (Kjell Ahlstedt) Bug #697229
* Use std::memset() instead of GLIBMM_INITIALIZE_STRUCT
  (Because it causes compiler warnings with --std=c++ with g++,
  because that defines __STRICT_ANSI__.) and deprecate
  (Kjell Ahlstedt)
* ByteArray:
  - Fix refcount problems.
    (Krzesimir Nowak)
  - ByteArray: Add some tests for methods returning self.
    (Krzesimir Nowak)
* DateTime: Fix compare() and equal().
  (Kjell Ahlstedt) Bug #704639 (Aurimas Černius)
* Regex: Add get_max_lookbehind().
  (Murray Cumming)
* Variant: Fix memory leaks.
  (Kjell Ahlstedt) Bug #704851 (xanm)

* Action:
  - get_state() and get_state_hint() now return something.
    We choose not to consider this an ABI break because these
    methods were impossible to use for anything useful before.
   (Andrew Potter) Bug #690134.
  - Add get_state_bool() and change_state(bool),
    to make it easier to deal with toggle actions.
    However, we might add a whole derived convenience class for these
    (Murray Cumming, Kjell Ahlstedt)
  - Add create_radio_string() and create_radio_integer() for
    radio items, though we might change this API lots.
    (Murray Cumming)
  - Add name_is_valid() and print_detailed_name().
    (Murray Cumming)
  - Add an activate() method that takes no parameter.
    (Murray Cumming)
  - print_detailed_name(): Remove the action_name parameter.
    (Murray Cumming)
  - print_detailed_name() Make this templated.
   (Murray Cumming)
  - Make get_state() templated.
    (Murray Cumming)
  - get_state_hint(): Correct a check.
    (Murray Cumming)
  - Add templated change_state() and activate().
    (Murray Cumming)
* Application: Add mark/unmark_busy().
  (Murray Cumming)
* ActionGroup:
  - Add templated getters.
    (Murray Cumming)
  - activate_action(): Add a method overload
    that takes no parameter parameter.
    (Murray Cumming)
* ActionMap:
  - Add add_action(name, slot).
    This is a convenience method similar to
    g_action_map_add_action_entries() in C.
    (Murray Cumming, Kjell Ahlstedt)
  - Add add_action_radio_string() and add_action_radio_integer()
    for radio items, though we might change this API lots.
    (Murray Cumming)
* DesktopInfo: Add list_actions(), launch_action() and get_action_name().
  (Murray Cumming)
* File:
  - Add measure_disk_usage() and measure_disk_usage_async().
    (Murray Cumming)
  - Add trash_async(), trash_finish(), make_directory_async()
    and make_directory_finish().
    (Murray Cumming)
* Menu: Add remove_all().
  (Murray Cumming)
* MenuItem:
  - Add set/unset_icon().
    (Murray Cumming)
  - Reimplement the constructors.
    (Murray Cumming) Bug #705199 (Pete Woods)
  - Add set_action(), unset_target() and
    (Murray Cumming)
  - MenuItem: get/set_attribute(): Deprecated for
    get/set_attribute_value() methods.
    (Murray Cumming)
  - Add insert/append/prepend_section() with no label parameter.
   (Murray Cumming) Bug #702456 (Aurimas Černius)
* Settings:
  - Add create_action().
    (Murray Cumming)
  - Add get/set_uint().
    (Murray Cumming)
* SimpleAction:
  - Make set_state() protected.
    (Murray Cumming)
  - add_action() now takes a slot with no parameter.
    Added add_action_with_parameter().
    (Murray Cumming)
  - set_enabled(): Add default parameter value.
    (Murray Cumming)
  - Add constructors and create_bool() methods that take a bool instead of
    a VariantBase for the state, to make it easier to deal with toggle actions.
    However, we might add a whole derived convenience class for these
    (Murray Cumming)
* SimpleActionGroup:
  - lookup(): Add a const version and use refreturn.
    (Murray Cumming)
  - Deprecate all methods, because they just call methods in
    the base ActionMap. The C functions are now deprecated too.
    See glib bug #705600 .
    (Murray Cumming)
* Add VariantParseError.
  Because it is thrown by GtkBuilder, at least for now.
  (Murray Cumming

* Add InterfaceSkeleton.
  (José Alburquerque)

* Port tools/defs_gen to Python 3.
  (Kjell Ahlstedt) Bug #690969
* tools/ Handle functions with Handle *_DEPRECATED_IN_*_FOR (*).
  (Murray Cumming)
* Update Visual Studio Projects
  (Chun-wei Fan)
* Glib::TypeTraits<>: Avoid warnings when compiling with -Wcast-qual.
  (Kjell Ahlstedt) Bug #704640 (Aurimas Černius)
* fixed multi-argument defines as enum values.
  (Marcin Kolny) Bug #705113
* Move to a generated ChangeLog.
  (José Alburquerque)

* Pass NULL to C function calls for optional empty strings.
  (José Alburquerque) Bug #686909. Bug #702456
* Add parameter return_value in _WRAP_VFUNC.
  (Marcin Kolny) Bug #705699.
* Fix _WRAP_SIGNAL with 'ifdef' and 'deprecated'.
  (Kjell Ahlstedt)
* Add '&rArr;' to the list of escape sequences.
  (José Alburquerque)
* Add _WRAP_ENUM_DOCS_ONLY() and simplify enum docs process.
  (José Alburquerque) Bug #703155
*  gmmproc: Use GMMPROC_RETURN_MISMATCHES environment variable.
  (José Alburquerque)
* Write glibmm version in generated files.
  (Kjell Ahlstedt) Bug #697835 and Bug #700495
* gmmproc: Add docs to the default constructor of _CLASS_OPAQUE_COPYABLE.
  mentioning that the constructed object is invalid.
  (Kjell Ahlstedt) Bug #704639 (Aurimas Černius)

*** Development 

There is active discussion on the mailing list:
and in the #c++ channel on

Murray Cumming
murrayc murrayc com

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