NAME

       SDLx::App - a SDL perl extension

CATEGORY

       Extension

SYNOPSIS

           use SDL;
           use SDLx::App;
           use SDL::Event;
           use SDL::Events;

           my $app = SDLx::App->new(
               title  => 'Application Title',
               width  => 640,
               height => 480,
               depth  => 32
           );

       This is the manual way of doing things

           my $event = SDL::Event->new; # create a new event

           SDL::Events::pump_events();

           while ( SDL::Events::poll_event($event) ) {
               my $type = $event->type(); # get event type
               print $type;
               exit if $type == SDL_QUIT;
           }

       An alternative to the manual Event processing is through the SDLx::Controller module.
       SDLx::App is a Controller so see the CALLBACKS section below.

DESCRIPTION

       SDLx::App controls the root window of the of your SDL based application.  It extends the
       SDL::Surface class, and provides an interface to the window manager oriented functions.

METHODS

   new
       "SDLx::App::new" initializes the SDL, creates a new screen, and initializes some of the
       window manager properties.  "SDLx::App::new" takes a series of named parameters:

       •   title the window title. Defaults to the file name. Shorter alias: 't'

       •   icon_title the icon title. Defaults to file name. Shortcut: 'it'

       •   icon the icon itself. Defaults to none. Shortcut: 'i'

       •   width Window width, in pixels. Defaults to 800. Shortcut: 'w'

       •   height Window height, in pixels. Defaults to 600. Shortcut: 'h'

       •   depth Screen depth. Defaults to 16. Shortcut: 'd'.

       •   flags Any flags you want to pass to SDL::Video upon initialization. Defaults to
           SDL_ANYFORMAT. Flags should be or'ed together if you're passing more than one (flags
           => FOO|BAR). Shortcut: 'f'.

       •   resizable Set this to a true value to make the window resizable by the user. Default
           is off.

       •   exit_on_quit Set this to a true value to make the app exit if a SDL_QUIT event is
           triggered. Shortcut: 'eoq'.

METHODS

   title()
   title( $new_title )
   title( $window_title, $icon_title )
       "SDLx::App::title" takes 0, 1, or 2 arguments. If no parameter is given, it returns the
       current application window title. If one parameter is passed, both the window title and
       icon title will be set to its value.  If two parameters are passed the window title will
       be set to the first, and the icon title to the second.

   delay( $ms )
       "SDLx::App::delay" takes 1 argument, and will sleep the application for that many ms.

   ticks
       "SDLx::App::ticks" returns the number of ms since the application began.

   error
       "SDLx::App::error" returns the last error message set by the SDL.

   resize( $width, $height )
       "SDLx::App::resize" takes a new width and height of the application. Only works if the
       application was originally created with the resizable option.

   fullscreen
       "SDLx::App::fullscreen" toggles the application in and out of fullscreen mode.

   iconify
       "SDLx::App::iconify" iconifies the application window.

   grab_input( $CONSTANT )
       "SDLx::App::grab_input" can be used to change the input focus behavior of the application.
       It takes one argument, which should be one of the following:

       •   SDL_GRAB_QUERY

       •   SDL_GRAB_ON

       •   SDL_GRAB_OFF

   sync
       "SDLx::App::sync" encapsulates the various methods of synchronizing the screen with the
       current video buffer. "SDLx::App::sync" will do a fullscreen update, using the double
       buffer or OpenGL buffer if applicable. This is preferred to calling flip on the
       application window.

   attribute( $attr )
   attribute( $attr, $value )
       "SDLx::App::attribute" allows one to get and set GL attributes. By passing a value in
       addition to the attribute selector, the value will be set. "SDL:::App::attribute" always
       returns the current value of the given attribute, or Carp::confess on failure.

CALLBACKS

       "SDLx::App" is a "SDLx::Controller". Use the event, show and handlers to run the app.

         use SDL;
         use SDLx::App;

         use SDL::Event; #Where ever the event call back is processed

         my $app = SDLx::App->new( width => 200, height => 200);

         $app->add_event_handler( sub{
             my ($event, $app) = @_;
             return $_[0]->type == SDL_QUIT ? 0 : 1;
         });

         $app->add_show_handler( sub{
             my ($delta, $app) = @_;
             $app->update;
         } );

         $app->add_move_handler( sub{
             my ($step, $app, $t) = @_;
             #calc your physics here
         } );

         $app->run();

       see SDLx::Controller for more details.

AUTHORS

       See "AUTHORS" in SDL.

SEE ALSO

       perl SDL::Surface SDL::Event  SDL::OpenGL