[gtkmm-documentation] Fix application/command_line_handling after changes in some enums

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 00ab403d9996c8ac688ebaf5476b9613abc256c7
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Fri Jun 16 13:41:58 2017 +0200

    Fix application/command_line_handling after changes in some enums
    
    Glib::OptionEntry::Flags and Gio::Application::OptionType are now
    enum class.

 .../command_line_handling/exampleapplication.cc    |   14 +++++++-------
 .../command_line_handling/examplewindow.cc         |    1 +
 2 files changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/examples/book/application/command_line_handling/exampleapplication.cc 
b/examples/book/application/command_line_handling/exampleapplication.cc
index 29a0944..d9fe8af 100644
--- a/examples/book/application/command_line_handling/exampleapplication.cc
+++ b/examples/book/application/command_line_handling/exampleapplication.cc
@@ -27,27 +27,27 @@ ExampleApplication::ExampleApplication()
   //These are just pointless command-line arguments to show the use of the API:
 
   //A bool.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_BOOL, "foo", 'f', "Enable foo.");
+  add_main_option_entry(Gio::Application::OptionType::BOOL, "foo", 'f', "Enable foo.");
 
   //A std::string.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_FILENAME, "goo", 'g', "The file name of goo to use.", 
"file");
+  add_main_option_entry(Gio::Application::OptionType::FILENAME, "goo", 'g', "The file name of goo to use.", 
"file");
 
   //A Glib::ustring.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_STRING, "hoo", 'h', "The hoo to use.", "", 
Glib::OptionEntry::FLAG_HIDDEN);
+  add_main_option_entry(Gio::Application::OptionType::STRING, "hoo", 'h', "The hoo to use.", "", 
Glib::OptionEntry::Flags::HIDDEN);
 
   //An int.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_INT, "bar", 'b', "The bar to use.", "number");
+  add_main_option_entry(Gio::Application::OptionType::INT, "bar", 'b', "The bar to use.", "number");
 
   //A bool.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_BOOL, "version", 'v', "Show the application version.");
+  add_main_option_entry(Gio::Application::OptionType::BOOL, "version", 'v', "Show the application version.");
 
 
   //A std::vector<std::string>.
-  add_main_option_entry(Gio::Application::OPTION_TYPE_FILENAME_VECTOR, G_OPTION_REMAINING);
+  add_main_option_entry(Gio::Application::OptionType::FILENAME_VECTOR, G_OPTION_REMAINING);
 
   //Custom-decoded arguments
   add_main_option_entry(sigc::mem_fun(*this, &ExampleApplication::on_option_arg_string),
-    "string", 's', "The string to use", "string", Glib::OptionEntry::FLAG_OPTIONAL_ARG);
+    "string", 's', "The string to use", "string", Glib::OptionEntry::Flags::OPTIONAL_ARG);
   add_main_option_entry_filename(sigc::mem_fun(*this, &ExampleApplication::on_option_arg_filename),
     "name", 'n', "The filename to use", "file");
 }
diff --git a/examples/book/application/command_line_handling/examplewindow.cc 
b/examples/book/application/command_line_handling/examplewindow.cc
index ac0af4b..2554569 100644
--- a/examples/book/application/command_line_handling/examplewindow.cc
+++ b/examples/book/application/command_line_handling/examplewindow.cc
@@ -21,6 +21,7 @@
 ExampleWindow::ExampleWindow()
 {
   set_title("Gtk::Application example");
+  set_default_size(300,200);
 
   add(m_scrolledwindow);
   m_scrolledwindow.add(m_view);