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* pixmaps/stock_save_all_16.png: New menu icon.
* pixmaps/Makefile.am: Add new icon.
* src/main.cc: Register new icon.

takes up quite some space.

* src/controller.{cc,h} (create_menubar): Implement.
* src/mainwindow.cc: Show the menu bar, and make both toolbar and
menu bar detachable.

* src/controller.{cc,h}: New files, implementing class Controller
and class ControlItem.  ControlItem maintains an arbitrary number
of activation sources, and controls the sensitivity state of an
arbitrary number of widgets too.  Controller centralizes all of
the ControlItems and provides create() functions for all pure
control widgets in regexxer.  Also, there's ControlGroup which can
be used to set the sensitivity of several widgets at once.

All this stuff became necessary due to the proposed addition of
menus.  Getting the sensitivity of all widgets right was already
quite complex.  After the integration of menus the old code would
have reached a critical mass.

* src/imagebutton.{cc,h}: New files, containing ImageButton and
ImageLabelButton that were previously in mainwindow.cc.  We need
them in controller.cc now too.

* src/Makefile.am (regexxer_SOURCES): Add new files.

* src/mainwindow.{cc,h}: Integrate the new Controller concept and
get rid of the obsolete cruft.  We're now below 1000 lines again.

to SharedPtr<>.

fix a compilation problem with GCC 2.95.x -- once again.

definitely more important than insane operator&() overloading :)

dictated by my own policy :)

* src/sharedptr.h: Reimplement the static member templates cast_static<>(),
cast_dynamic<>() and cast_dynamic_throw<>() as free functions, and use the
boost naming convention.

* src/filetree.cc: Use the new boost-like cast functions.

* src/filetree.{cc,h} (find_files): Use std::string instead of Glib::ustring
for 'dirname' and get rid of the call to Glib::filename_from_utf8().  This
doesn't really belong here.

* src/mainwindow.cc (on_find_files): Convert the directory name to filename
encoding, and use the current directory as fallback if it's empty.

one file to search in.  Suggested by Murray Cumming <murrayc@usa.net>.
(button_find_files_): Likewise set this button insensitive if entry_pattern_ is
empty.

seems to ignore the 'blocked' flag of the SigC::Connection object.  I'll fix
this later in gtkmm itself.

path_match_first_ and path_match_last_.  This fixes a serious bug -- the code
relies on the validity of this cached range.

exactly.  The Glib::ustring collation methods depend on the user's locale and
might even ignore case.

std::auto_ptr<> properly :)

The former does a much better job of putting the window where the user can see
it.

(which comes with GCC 2.95.x) is badly broken and doesn't support this
particular overload of compare().  Darn.

than only if the file seems to be binary.

a dialog asking for confirmation.

the activated signal.  The GTK+ people persuaded me that the inconsistency is
worse than the little annoyance of having to hit the expander arrow.