[gparted] Use Gtk::Box for Win_GParted (!25)

[Mike Fleetwood <mfleetwo src gnome org>]

commit c02c3ee4b5b8aeb6560366bcf66138fca9f2a3b7
Author: Luca Bacci <luca bacci982 gmail com>
Date:   Wed Feb 27 16:10:37 2019 +0100

    Use Gtk::Box for Win_GParted (!25)
    
    Gtk::HBox and Gtk::VBox were deprecated in Gtkmm 3.2 [1].  Replace with
    plain Gtk::Box.
    
    This commit makes the change for Win_GParted.{h,cc}.
    
    [1] Gtkmm 3.2.0 NEWS file (actually first included in gtkmm 3.1.6
        unstable)
        https://gitlab.gnome.org/GNOME/gtkmm/blob/3.2.0/NEWS#L91
            Gtk:
            * All H* or V* specialized classes have been deprecated, to
              match the deprecations in the GTK+ C API.  You should now
              set the orientation instead.
              This includes HBox, VBox, HButtonBox, VButtonBox, HPaned,
              VPaned, HScale, VScale, HSeparator, VSeparator, HScrollbar and
              VScrollbar.
    
    Closes !25 - Modern Gtk3 - part 1

 include/Win_GParted.h |  6 ++++--
 src/Win_GParted.cc    | 17 ++++++++++-------
 2 files changed, 14 insertions(+), 9 deletions(-)
---
diff --git a/include/Win_GParted.h b/include/Win_GParted.h
index 49626fd7..f18850ff 100644
--- a/include/Win_GParted.h
+++ b/include/Win_GParted.h
@@ -218,8 +218,10 @@ private:
 //gui stuff
        Gtk::HPaned hpaned_main;
        Gtk::VPaned vpaned_main;
-       Gtk::VBox vbox_main,vbox_info ;
-       Gtk::HBox hbox_toolbar, *hbox;
+       Gtk::Box vbox_main;
+       Gtk::Box vbox_info;
+       Gtk::Box hbox_toolbar;
+       Gtk::Box *hbox;
        Gtk::Toolbar toolbar_main;
        Gtk::MenuBar menubar_main;
        Gtk::ComboBox combo_devices ;
diff --git a/src/Win_GParted.cc b/src/Win_GParted.cc
index c0cde730..da199a31 100644
--- a/src/Win_GParted.cc
+++ b/src/Win_GParted.cc
@@ -93,8 +93,9 @@ Win_GParted::Win_GParted( const std::vector<Glib::ustring> & user_devices )
        {
                std::cout << e .what() << std::endl ;
        }
-       
-       //Pack the main box
+
+       // Pack the main box
+       vbox_main.set_orientation(Gtk::ORIENTATION_VERTICAL);
        this ->add( vbox_main ); 
        
        //menubar....
@@ -290,7 +291,8 @@ void Win_GParted::init_menubar()
 void Win_GParted::init_toolbar() 
 {
        int index = 0 ;
-       //initialize and pack toolbar_main 
+       // Initialize and pack toolbar_main
+       hbox_toolbar.set_orientation(Gtk::ORIENTATION_HORIZONTAL);
        hbox_toolbar.pack_start( toolbar_main );
        
        //NEW and DELETE
@@ -542,7 +544,7 @@ Gtk::Menu * Win_GParted::create_format_menu()
 //Add one entry to the Partition --> Format to --> (file system list) menu
 void Win_GParted::create_format_menu_add_item( FSType filesystem, bool activate )
 {
-       hbox = manage( new Gtk::HBox() ) ;
+       hbox = manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
        //the colored square
        hbox ->pack_start( * manage( new Gtk::Image( Utils::get_color_as_pixbuf( filesystem, 16, 16 ) ) ),
                           Gtk::PACK_SHRINK ) ;
@@ -561,6 +563,7 @@ void Win_GParted::create_format_menu_add_item( FSType filesystem, bool activate
 
 void Win_GParted::init_device_info()
 {
+       vbox_info.set_orientation(Gtk::ORIENTATION_VERTICAL);
        vbox_info.set_spacing( 5 );
        int top = 0, bottom = 1;
        
@@ -731,9 +734,9 @@ void Win_GParted::refresh_combo_devices()
                        Utils::mk_pixbuf(*this, Gtk::Stock::HARDDISK, Gtk::ICON_SIZE_LARGE_TOOLBAR);
                treerow[ treeview_devices_columns .device ] = devices[ i ] .get_path() ;
                treerow[ treeview_devices_columns .size ] = "(" + Utils::format_size( devices[ i ] .length, 
devices[ i ] .sector_size ) + ")" ; 
-       
-               //devices submenu....
-               hbox = manage( new Gtk::HBox() ) ;
+
+               // Devices submenu...
+               hbox = manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL));
                hbox ->pack_start( * Utils::mk_label( devices[ i ] .get_path() ), Gtk::PACK_EXPAND_WIDGET ) ;
                hbox ->pack_start( * Utils::mk_label( "   (" + Utils::format_size( devices[ i ] .length, 
devices[ i ] .sector_size ) + ")" ),
                                   Gtk::PACK_SHRINK ) ;