GG
Static Public Member Functions | Protected Member Functions
GG::SDLGUI Class Reference

#include <SDLGUI.h>

Inheritance diagram for GG::SDLGUI:
GG::GUI

List of all members.

Static Public Member Functions

static SDLGUIGetGUI ()
static GG::Key GGKeyFromSDLKey (const SDL_keysym &key)
- Static Public Member Functions inherited from GG::GUI
static void RenderWindow (Wnd *wnd)

Protected Member Functions

virtual void SDLInit ()
virtual void GLInit ()
virtual void Initialize ()=0
virtual void HandleSystemEvents ()
virtual void HandleNonGGEvent (const SDL_Event &event)
virtual void RenderBegin ()
virtual void RenderEnd ()
virtual void FinalCleanup ()
virtual void SDLQuit ()
virtual void Run ()
- Protected Member Functions inherited from GG::GUI
 GUI (const std::string &app_name)
void ProcessBrowseInfo ()
virtual void Render ()
void SetFPS (double FPS)
void SetDeltaT (unsigned int delta_t)

Structors

 SDLGUI (int w=1024, int h=768, bool calc_FPS=false, const std::string &app_name="GG")
virtual ~SDLGUI ()

Accessors

virtual X AppWidth () const
virtual Y AppHeight () const
virtual unsigned int Ticks () const

Mutators

void operator() ()
virtual void Exit (int code)
virtual void Enter2DMode ()=0
virtual void Exit2DMode ()=0

Additional Inherited Members

- Public Types inherited from GG::GUI
enum  EventType {
  IDLE,
  KEYPRESS,
  KEYRELEASE,
  LPRESS,
  MPRESS,
  RPRESS,
  LRELEASE,
  MRELEASE,
  RRELEASE,
  MOUSEMOVE,
  MOUSEWHEEL
}
typedef std::set< std::pair
< Key, Flags< ModKey >
> >::iterator 
accel_iterator
typedef std::set< std::pair
< Key, Flags< ModKey >
> >::const_iterator 
const_accel_iterator
typedef boost::signal< bool(),
OrCombiner > 
AcceleratorSignalType
- Public Member Functions inherited from GG::GUI
virtual ~GUI ()
const std::string & AppName () const
WndFocusWnd () const
WndGetWindowUnder (const Pt &pt) const
unsigned int DeltaT () const
bool RenderingDragDropWnds () const
bool FPSEnabled () const
double FPS () const
std::string FPSString () const
double MaxFPS () const
unsigned int ButtonDownRepeatDelay () const
unsigned int ButtonDownRepeatInterval () const
unsigned int DoubleClickInterval () const
unsigned int MinDragTime () const
unsigned int MinDragDistance () const
bool DragDropWnd (const Wnd *wnd) const
bool AcceptedDragDropWnd (const Wnd *wnd) const
bool MouseButtonDown (unsigned int bn) const
Pt MousePosition () const
Pt MouseMovement () const
Flags< ModKey > ModKeys () const
bool MouseLRSwapped () const
const std::map< Key, Key > & KeyMap () const
virtual std::set< std::pair
< CPSize, CPSize > > 
FindWords (const std::string &str) const
const boost::shared_ptr
< StyleFactory > & 
GetStyleFactory () const
bool RenderCursor () const
const boost::shared_ptr< Cursor > & GetCursor () const
const_accel_iterator accel_begin () const
const_accel_iterator accel_end () const
AcceleratorSignalTypeAcceleratorSignal (Key key, Flags< ModKey > mod_keys=MOD_KEY_NONE) const
void SaveWndAsPNG (const Wnd *wnd, const std::string &filename) const
void HandleGGEvent (EventType event, Key key, boost::uint32_t key_code_point, Flags< ModKey > mod_keys, const Pt &pos, const Pt &rel)
void SetFocusWnd (Wnd *wnd)
virtual void Wait (unsigned int ms)
void Register (Wnd *wnd)
void RegisterModal (Wnd *wnd)
void Remove (Wnd *wnd)
void WndDying (Wnd *wnd)
void MoveUp (Wnd *wnd)
void MoveDown (Wnd *wnd)
virtual boost::shared_ptr
< ModalEventPump
CreateModalEventPump (bool &done)
void RegisterDragDropWnd (Wnd *wnd, const Pt &offset, Wnd *originating_wnd)
void CancelDragDrop ()
void RegisterTimer (Timer &timer)
void RemoveTimer (Timer &timer)
void EnableFPS (bool b=true)
void SetMaxFPS (double max)
void EnableMouseButtonDownRepeat (unsigned int delay, unsigned int interval)
void SetDoubleClickInterval (unsigned int interval)
void SetMinDragTime (unsigned int time)
void SetMinDragDistance (unsigned int distance)
accel_iterator accel_begin ()
accel_iterator accel_end ()
void SetAccelerator (Key key, Flags< ModKey > mod_keys=MOD_KEY_NONE)
void RemoveAccelerator (Key key, Flags< ModKey > mod_keys=MOD_KEY_NONE)
void RemoveAccelerator (accel_iterator it)
void SetMouseLRSwapped (bool swapped=true)
void SetKeyMap (const std::map< Key, Key > &key_map)
boost::shared_ptr< FontGetFont (const std::string &font_filename, unsigned int pts)
boost::shared_ptr< FontGetFont (const std::string &font_filename, unsigned int pts, const std::vector< unsigned char > &file_contents)
template<class CharSetIter >
boost::shared_ptr< FontGetFont (const std::string &font_filename, unsigned int pts, CharSetIter first, CharSetIter last)
template<class CharSetIter >
boost::shared_ptr< FontGetFont (const std::string &font_filename, unsigned int pts, const std::vector< unsigned char > &file_contents, CharSetIter first, CharSetIter last)
boost::shared_ptr< FontGetFont (const boost::shared_ptr< Font > &font, unsigned int pts)
void FreeFont (const std::string &font_filename, unsigned int pts)
boost::shared_ptr< TextureStoreTexture (Texture *texture, const std::string &texture_name)
boost::shared_ptr< TextureStoreTexture (const boost::shared_ptr< Texture > &texture, const std::string &texture_name)
boost::shared_ptr< TextureGetTexture (const std::string &name, bool mipmap=false)
void FreeTexture (const std::string &name)
void SetStyleFactory (const boost::shared_ptr< StyleFactory > &factory)
void RenderCursor (bool render)
void SetCursor (const boost::shared_ptr< Cursor > &cursor)
 GG_ABSTRACT_EXCEPTION (Exception)
 GG_CONCRETE_EXCEPTION (BadFunctionPointer, GG::GUI, Exception)

Detailed Description

This is an abstract singleton class that represents the GUI framework of an SDL OpenGL application.

Usage:


Any application including an object of this class should declare that object as a local variable in main(). The name of this variable will herein be assumed to be "gui". It should be allocated on the stack; if it is created dynamically a leak may occur. SDLGUI is designed so the main() of the application can consist of just the one line "gui();".

To do this, the user needs only to override the Initialize() and FinalCleanup() methods, and ensure that the program does not terminate abnormally; this ensures FinalCleanup() is called when gui's destructor is invoked. Exit() can also perform cleanup and terminate the application cleanly.

Most of the member methods of SDLGUI have been declared virtual, to give the user great control when subclassing. The virtual function calls are usually not a performance issue, since none of the methods is called repeatedly, except HandleEvent(); if this is a problem, just create a new function in your subclass and call that from within Run() instead of HandleEvent(). Note that though the bulk of the program execution takes place within Run(), Run() itself is also only called once.

SDLGUI takes a two-tiered approach to event handling. The event pump calls HandleSystemEvents(), which polls for SDL events and handles them by first determining whether the event is GG-related, or some other non-GG event, such as SDL_QUIT, etc. GG events and non-GG events are passed to HandleGGEvent() and HandleNonGGEvent(), respectively. For most uses, there should be no need to override the behavior of HandleSDLEvents(). However, the HandleNonGGEvent() default implementation only responds to SDL_QUIT events, and so should be overridden in most cases.

Definition at line 82 of file SDLGUI.h.


Member Function Documentation

virtual void GG::SDLGUI::HandleSystemEvents ( )
protectedvirtual

Handles all waiting system events (from SDL, DirectInput, etc.). This function should only be called from custom EventPump event handlers.

Implements GG::GUI.


The documentation for this class was generated from the following file: