removing outdated files on mac

[wxWidgets.git] / include / wx / app.h

diff --git a/include/wx/app.h b/include/wx/app.h
index 349bac1acf1f4e27865fea4d89b906b400238795..553a29aa5c2cb2b98ad429f4a57811b5c04b4545 100644 (file)
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -1,73 +1,735 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        app.h
-// Purpose:     wxApp inclusion
+// Name:        wx/app.h
+// Purpose:     wxAppBase class and macros used for declaration of wxApp
+//              derived class in the user code

 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifndef __APPH_BASE__
-#define __APPH_BASE__
+#ifndef _WX_APP_H_BASE_
+#define _WX_APP_H_BASE_

 
 

-#ifndef __GTK__
-class WXDLLEXPORT wxApp;
-typedef wxApp* (*wxAppInitializerFunction) (void);
+// ----------------------------------------------------------------------------
+// headers we have to include here
+// ----------------------------------------------------------------------------
+
+#include "wx/event.h"       // for the base class
+#include "wx/build.h"
+#include "wx/cmdargs.h"     // for wxCmdLineArgsArray used by wxApp::argv
+#include "wx/init.h"        // we must declare wxEntry()
+#include "wx/intl.h"        // for wxLayoutDirection
+
+class WXDLLIMPEXP_FWD_BASE wxAppConsole;
+class WXDLLIMPEXP_FWD_BASE wxAppTraits;
+class WXDLLIMPEXP_FWD_BASE wxCmdLineParser;
+class WXDLLIMPEXP_FWD_BASE wxEventLoopBase;
+class WXDLLIMPEXP_FWD_BASE wxLog;
+class WXDLLIMPEXP_FWD_BASE wxMessageOutput;
+
+#if wxUSE_GUI
+    struct WXDLLIMPEXP_FWD_CORE wxVideoMode;

 #endif
 
 #endif
 

-#include "wx/object.h"
+// ----------------------------------------------------------------------------
+// typedefs
+// ----------------------------------------------------------------------------
+
+// the type of the function used to create a wxApp object on program start up
+typedef wxAppConsole* (*wxAppInitializerFunction)();
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+enum
+{
+    wxPRINT_WINDOWS = 1,
+    wxPRINT_POSTSCRIPT = 2
+};
+
+// ----------------------------------------------------------------------------
+// wxAppConsoleBase: wxApp for non-GUI applications
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler
+{
+public:
+    // ctor and dtor
+    wxAppConsoleBase();
+    virtual ~wxAppConsoleBase();
+
+
+    // the virtual functions which may/must be overridden in the derived class
+    // -----------------------------------------------------------------------
+
+    // This is the very first function called for a newly created wxApp object,
+    // it is used by the library to do the global initialization. If, for some
+    // reason, you must override it (instead of just overriding OnInit(), as
+    // usual, for app-specific initializations), do not forget to call the base
+    // class version!
+    virtual bool Initialize(int& argc, wxChar **argv);
+
+    // This gives wxCocoa a chance to call OnInit() with a memory pool in place
+    virtual bool CallOnInit() { return OnInit(); }
+
+    // Called before OnRun(), this is a good place to do initialization -- if
+    // anything fails, return false from here to prevent the program from
+    // continuing. The command line is normally parsed here, call the base
+    // class OnInit() to do it.
+    virtual bool OnInit();
+
+    // this is here only temporary hopefully (FIXME)
+    virtual bool OnInitGui() { return true; }
+
+    // This is the replacement for the normal main(): all program work should
+    // be done here. When OnRun() returns, the programs starts shutting down.
+    virtual int OnRun();
+
+    // This is only called if OnInit() returned true so it's a good place to do
+    // any cleanup matching the initializations done there.
+    virtual int OnExit();
+
+    // This is the very last function called on wxApp object before it is
+    // destroyed. If you override it (instead of overriding OnExit() as usual)
+    // do not forget to call the base class version!
+    virtual void CleanUp();
+
+    // Called when a fatal exception occurs, this function should take care not
+    // to do anything which might provoke a nested exception! It may be
+    // overridden if you wish to react somehow in non-default way (core dump
+    // under Unix, application crash under Windows) to fatal program errors,
+    // however extreme care should be taken if you don't want this function to
+    // crash.
+    virtual void OnFatalException() { }
+
+    // Called from wxExit() function, should terminate the application a.s.a.p.
+    virtual void Exit();
+
+
+    // application info: name, description, vendor
+    // -------------------------------------------
+
+    // NB: all these should be set by the application itself, there are no
+    //     reasonable default except for the application name which is taken to
+    //     be argv[0]
+
+        // set/get the application name
+    wxString GetAppName() const
+    {
+        return m_appName.empty() ? m_className : m_appName;
+    }
+    void SetAppName(const wxString& name) { m_appName = name; }
+
+        // set/get the application display name: the display name is the name
+        // shown to the user in titles, reports, etc while the app name is
+        // used for paths, config, and other places the user doesn't see
+        //
+        // so the app name could be myapp while display name could be "My App"
+    wxString GetAppDisplayName() const
+    {
+        return m_appDisplayName.empty() ? GetAppName() : m_appDisplayName;
+    }
+    void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; }
+
+        // set/get the app class name
+    wxString GetClassName() const { return m_className; }
+    void SetClassName(const wxString& name) { m_className = name; }
+
+        // set/get the vendor name
+    const wxString& GetVendorName() const { return m_vendorName; }
+    void SetVendorName(const wxString& name) { m_vendorName = name; }
+
+        // set/get the vendor display name:  the display name is shown
+        // in titles/reports/dialogs to the user, while the vendor name
+        // is used in some areas such as wxConfig, wxStandardPaths, etc
+    const wxString& GetVendorDisplayName() const
+    {
+        return m_vendorDisplayName.empty() ? GetVendorName()
+                                           : m_vendorDisplayName;
+    }
+    void SetVendorDisplayName(const wxString& name)
+    {
+        m_vendorDisplayName = name;
+    }
+
+
+    // cmd line parsing stuff
+    // ----------------------
+
+    // all of these methods may be overridden in the derived class to
+    // customize the command line parsing (by default only a few standard
+    // options are handled)
+    //
+    // you also need to call wxApp::OnInit() from YourApp::OnInit() for all
+    // this to work
+
+#if wxUSE_CMDLINE_PARSER
+    // this one is called from OnInit() to add all supported options
+    // to the given parser (don't forget to call the base class version if you
+    // override it!)
+    virtual void OnInitCmdLine(wxCmdLineParser& parser);
+
+    // called after successfully parsing the command line, return true
+    // to continue and false to exit (don't forget to call the base class
+    // version if you override it!)
+    virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
+
+    // called if "--help" option was specified, return true to continue
+    // and false to exit
+    virtual bool OnCmdLineHelp(wxCmdLineParser& parser);
+
+    // called if incorrect command line options were given, return
+    // false to abort and true to continue
+    virtual bool OnCmdLineError(wxCmdLineParser& parser);
+#endif // wxUSE_CMDLINE_PARSER

 
 

-#ifdef __GTK__
-typedef wxObject* (*wxAppInitializerFunction) (void);  // returning wxApp* won't work with gcc
+
+    // miscellaneous customization functions
+    // -------------------------------------
+
+    // create the app traits object to which we delegate for everything which
+    // either should be configurable by the user (then he can change the
+    // default behaviour simply by overriding CreateTraits() and returning his
+    // own traits object) or which is GUI/console dependent as then wxAppTraits
+    // allows us to abstract the differences behind the common facade
+    wxAppTraits *GetTraits();
+
+
+    // event processing functions
+    // --------------------------
+
+    // this method allows to filter all the events processed by the program, so
+    // you should try to return quickly from it to avoid slowing down the
+    // program to the crawl
+    //
+    // return value should be -1 to continue with the normal event processing,
+    // or TRUE or FALSE to stop further processing and pretend that the event
+    // had been already processed or won't be processed at all, respectively
+    virtual int FilterEvent(wxEvent& event);
+
+#if wxUSE_EXCEPTIONS
+    // call the specified handler on the given object with the given event
+    //
+    // this method only exists to allow catching the exceptions thrown by any
+    // event handler, it would lead to an extra (useless) virtual function call
+    // if the exceptions were not used, so it doesn't even exist in that case
+    virtual void HandleEvent(wxEvtHandler *handler,
+                             wxEventFunction func,
+                             wxEvent& event) const;
+
+    // Called when an unhandled C++ exception occurs inside OnRun(): note that
+    // the main event loop has already terminated by now and the program will
+    // exit, if you need to really handle the exceptions you need to override
+    // OnExceptionInMainLoop()
+    virtual void OnUnhandledException();
+#endif // wxUSE_EXCEPTIONS
+
+    // event processing functions
+    // --------------------------
+
+    // return true if we're running event loop, i.e. if the events can
+    // (already) be dispatched
+    static bool IsMainLoopRunning();
+
+    // process all events in the wxPendingEvents list -- it is necessary to
+    // call this function to process posted events. This happens during each
+    // event loop iteration in GUI mode but if there is no main loop, it may be
+    // also called directly.
+    virtual void ProcessPendingEvents();
+
+    // check if there are pending events on global pending event list
+    bool HasPendingEvents() const;
+
+    // doesn't do anything in this class, just a hook for GUI wxApp
+    virtual bool Yield(bool WXUNUSED(onlyIfNeeded) = false) { return true; }
+
+    // make sure that idle events are sent again
+    virtual void WakeUpIdle();
+
+        // execute the main GUI loop, the function returns when the loop ends
+    virtual int MainLoop();
+
+        // exit the main GUI loop during the next iteration (i.e. it does not
+        // stop the program immediately!)
+    virtual void ExitMainLoop();
+
+        // returns true if there are unprocessed events in the event queue
+    virtual bool Pending();
+
+        // process the first event in the event queue (blocks until an event
+        // appears if there are none currently, use Pending() if this is not
+        // wanted), returns false if the event loop should stop and true
+        // otherwise
+    virtual bool Dispatch();
+
+        // this virtual function is called  when the application
+        // becomes idle and normally just sends wxIdleEvent to all interested
+        // parties
+        //
+        // it should return true if more idle events are needed, false if not
+    virtual bool ProcessIdle();
+
+#if wxUSE_EXCEPTIONS
+    // Function called if an uncaught exception is caught inside the main
+    // event loop: it may return true to continue running the event loop or
+    // false to stop it (in the latter case it may rethrow the exception as
+    // well)
+    virtual bool OnExceptionInMainLoop();
+#endif // wxUSE_EXCEPTIONS
+
+    // debugging support
+    // -----------------
+
+#ifdef __WXDEBUG__
+    // this function is called when an assert failure occurs, the base class
+    // version does the normal processing (i.e. shows the usual assert failure
+    // dialog box)
+    //
+    // the arguments are the location of the failed assert (func may be empty
+    // if the compiler doesn't support C99 __FUNCTION__), the text of the
+    // assert itself and the user-specified message
+    virtual void OnAssertFailure(const wxChar *file,
+                                 int line,
+                                 const wxChar *func,
+                                 const wxChar *cond,
+                                 const wxChar *msg);
+
+    // old version of the function without func parameter, for compatibility
+    // only, override OnAssertFailure() in the new code
+    virtual void OnAssert(const wxChar *file,
+                          int line,
+                          const wxChar *cond,
+                          const wxChar *msg);
+#endif // __WXDEBUG__
+
+    // check that the wxBuildOptions object (constructed in the application
+    // itself, usually the one from IMPLEMENT_APP() macro) matches the build
+    // options of the library and abort if it doesn't
+    static bool CheckBuildOptions(const char *optionsSignature,
+                                  const char *componentName);
+
+    // implementation only from now on
+    // -------------------------------
+
+    // helpers for dynamic wxApp construction
+    static void SetInitializerFunction(wxAppInitializerFunction fn)
+        { ms_appInitFn = fn; }
+    static wxAppInitializerFunction GetInitializerFunction()
+        { return ms_appInitFn; }
+
+    // accessors for ms_appInstance field (external code might wish to modify
+    // it, this is why we provide a setter here as well, but you should really
+    // know what you're doing if you call it), wxTheApp is usually used instead
+    // of GetInstance()
+    static wxAppConsole *GetInstance() { return ms_appInstance; }
+    static void SetInstance(wxAppConsole *app) { ms_appInstance = app; }
+
+
+    // command line arguments (public for backwards compatibility)
+    int argc;
+
+    // this object is implicitly convertible to either "char**" (traditional
+    // type of argv parameter of main()) or to "wchar_t **" (for compatibility
+    // with Unicode build in previous wx versions and because the command line
+    // can, in pr
+#if wxUSE_UNICODE
+    wxCmdLineArgsArray argv;
+#else
+    char **argv;

 #endif
 
 #endif
 

-#if defined(__WINDOWS__)
-#include "wx/msw/app.h"
-#elif defined(__MOTIF__)
-#include "wx/xt/app.h"
-#elif defined(__GTK__)
-#include "wx/gtk/app.h"
+protected:
+    // the function which creates the traits object when GetTraits() needs it
+    // for the first time
+    virtual wxAppTraits *CreateTraits();
+
+
+    // function used for dynamic wxApp creation
+    static wxAppInitializerFunction ms_appInitFn;
+
+    // the one and only global application object
+    static wxAppConsole *ms_appInstance;
+
+    // create main loop from AppTraits or return NULL if
+    // there is no main loop implementation
+    wxEventLoopBase *CreateMainLoop();
+
+    // application info (must be set from the user code)
+    wxString m_vendorName,        // vendor name ("acme")
+             m_vendorDisplayName, // vendor display name (e.g. "ACME Inc")
+             m_appName,           // app name ("myapp")
+             m_appDisplayName,    // app display name ("My Application")
+             m_className;         // class name
+
+    // the class defining the application behaviour, NULL initially and created
+    // by GetTraits() when first needed
+    wxAppTraits *m_traits;
+
+    // the main event loop of the application (may be NULL if the loop hasn't
+    // been started yet or has already terminated)
+    wxEventLoopBase *m_mainLoop;
+
+    // the application object is a singleton anyhow, there is no sense in
+    // copying it
+    DECLARE_NO_COPY_CLASS(wxAppConsoleBase)
+};
+
+#if defined(__UNIX__)
+    #include "wx/unix/app.h"
+#else
+    // this has to be a class and not a typedef as we forward declare it
+    class wxAppConsole : public wxAppConsoleBase { };

 #endif
 
 #endif
 

+// ----------------------------------------------------------------------------
+// wxAppBase: the common part of wxApp implementations for all platforms
+// ----------------------------------------------------------------------------

 
 

-// Having a global instance of this class allows
-// wxApp to be aware of the app creator function.
-// wxApp can then call this function to create a new
-// app object. Convoluted, but necessary.
+#if wxUSE_GUI

 
 

-class WXDLLEXPORT wxAppInitializer
+class WXDLLIMPEXP_CORE wxAppBase : public wxAppConsole

 {
 public:
 {
 public:

-       wxAppInitializer(wxAppInitializerFunction fn)
-       {
-               wxApp::SetInitializerFunction(fn);
-       }
+    wxAppBase();
+    virtual ~wxAppBase();
+
+    // the virtual functions which may/must be overridden in the derived class
+    // -----------------------------------------------------------------------
+
+        // very first initialization function
+        //
+        // Override: very rarely
+    virtual bool Initialize(int& argc, wxChar **argv);
+
+        // a platform-dependent version of OnInit(): the code here is likely to
+        // depend on the toolkit. default version does nothing.
+        //
+        // Override: rarely.
+    virtual bool OnInitGui();
+
+        // called to start program execution - the default version just enters
+        // the main GUI loop in which events are received and processed until
+        // the last window is not deleted (if GetExitOnFrameDelete) or
+        // ExitMainLoop() is called. In console mode programs, the execution
+        // of the program really starts here
+        //
+        // Override: rarely in GUI applications, always in console ones.
+    virtual int OnRun();
+
+        // a matching function for OnInit()
+    virtual int OnExit();
+
+        // very last clean up function
+        //
+        // Override: very rarely
+    virtual void CleanUp();
+
+
+    // the worker functions - usually not used directly by the user code
+    // -----------------------------------------------------------------
+
+
+
+        // process all currently pending events right now
+        //
+        // it is an error to call Yield() recursively unless the value of
+        // onlyIfNeeded is true
+        //
+        // WARNING: this function is dangerous as it can lead to unexpected
+        //          reentrancies (i.e. when called from an event handler it
+        //          may result in calling the same event handler again), use
+        //          with _extreme_ care or, better, don't use at all!
+    virtual bool Yield(bool onlyIfNeeded = false) = 0;
+
+        // this virtual function is called in the GUI mode when the application
+        // becomes idle and normally just sends wxIdleEvent to all interested
+        // parties
+        //
+        // it should return true if more idle events are needed, false if not
+    virtual bool ProcessIdle();
+
+        // Send idle event to window and all subwindows
+        // Returns true if more idle time is requested.
+    virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event);
+
+
+    // top level window functions
+    // --------------------------
+
+        // return true if our app has focus
+    virtual bool IsActive() const { return m_isActive; }
+
+        // set the "main" top level window
+    void SetTopWindow(wxWindow *win) { m_topWindow = win; }
+
+        // return the "main" top level window (if it hadn't been set previously
+        // with SetTopWindow(), will return just some top level window and, if
+        // there are none, will return NULL)
+    virtual wxWindow *GetTopWindow() const;
+
+        // control the exit behaviour: by default, the program will exit the
+        // main loop (and so, usually, terminate) when the last top-level
+        // program window is deleted. Beware that if you disable this behaviour
+        // (with SetExitOnFrameDelete(false)), you'll have to call
+        // ExitMainLoop() explicitly from somewhere.
+    void SetExitOnFrameDelete(bool flag)
+        { m_exitOnFrameDelete = flag ? Yes : No; }
+    bool GetExitOnFrameDelete() const
+        { return m_exitOnFrameDelete == Yes; }
+
+
+    // display mode, visual, printing mode, ...
+    // ------------------------------------------------------------------------
+
+        // Get display mode that is used use. This is only used in framebuffer
+        // wxWin ports (such as wxMGL or wxDFB).
+    virtual wxVideoMode GetDisplayMode() const;
+        // Set display mode to use. This is only used in framebuffer wxWin
+        // ports (such as wxMGL or wxDFB). This method should be called from
+        // wxApp::OnInitGui
+    virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; }
+
+        // set use of best visual flag (see below)
+    void SetUseBestVisual( bool flag, bool forceTrueColour = false )
+        { m_useBestVisual = flag; m_forceTrueColour = forceTrueColour; }
+    bool GetUseBestVisual() const { return m_useBestVisual; }
+
+        // set/get printing mode: see wxPRINT_XXX constants.
+        //
+        // default behaviour is the normal one for Unix: always use PostScript
+        // printing.
+    virtual void SetPrintMode(int WXUNUSED(mode)) { }
+    int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }
+
+    // Return the layout direction for the current locale or wxLayout_Default
+    // if it's unknown
+    virtual wxLayoutDirection GetLayoutDirection() const;
+
+    // Change the theme used by the application, return true on success.
+    virtual bool SetNativeTheme(const wxString& WXUNUSED(theme)) { return false; }
+
+
+    // command line parsing (GUI-specific)
+    // ------------------------------------------------------------------------
+
+#if wxUSE_CMDLINE_PARSER
+    virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
+    virtual void OnInitCmdLine(wxCmdLineParser& parser);
+#endif
+
+    // miscellaneous other stuff
+    // ------------------------------------------------------------------------
+
+    // called by toolkit-specific code to set the app status: active (we have
+    // focus) or not and also the last window which had focus before we were
+    // deactivated
+    virtual void SetActive(bool isActive, wxWindow *lastFocus);
+
+#if WXWIN_COMPATIBILITY_2_6
+    // OBSOLETE: don't use, always returns true
+    //
+    // returns true if the program is successfully initialized
+    wxDEPRECATED( bool Initialized() );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+protected:
+    // delete all objects in wxPendingDelete list
+    void DeletePendingObjects();
+
+    // override base class method to use GUI traits
+    virtual wxAppTraits *CreateTraits();
+
+
+    // the main top level window (may be NULL)
+    wxWindow *m_topWindow;
+
+    // if Yes, exit the main loop when the last top level window is deleted, if
+    // No don't do it and if Later -- only do it once we reach our OnRun()
+    //
+    // the explanation for using this strange scheme is given in appcmn.cpp
+    enum
+    {
+        Later = -1,
+        No,
+        Yes
+    } m_exitOnFrameDelete;
+
+    // true if the app wants to use the best visual on systems where
+    // more than one are available (Sun, SGI, XFree86 4.0 ?)
+    bool m_useBestVisual;
+    // force TrueColour just in case "best" isn't TrueColour
+    bool m_forceTrueColour;
+
+    // does any of our windows have focus?
+    bool m_isActive;
+
+
+    DECLARE_NO_COPY_CLASS(wxAppBase)

 };
 
 };
 

-// Here's a macro you can use if your compiler
-// really, really wants main() to be in your main program
-// (e.g. hello.cpp).
-// Now IMPLEMENT_APP should add this code if required.
+#if WXWIN_COMPATIBILITY_2_6
+    inline bool wxAppBase::Initialized() { return true; }
+#endif // WXWIN_COMPATIBILITY_2_6

 
 

-#if defined(__AIX__) || defined(__SUN__) || defined(__HPUX__)
-#define IMPLEMENT_WXWIN_MAIN \
-extern int wxEntry( int argc, char *argv[] ); \
-int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
-#else
-#define IMPLEMENT_WXWIN_MAIN
+// ----------------------------------------------------------------------------
+// now include the declaration of the real class
+// ----------------------------------------------------------------------------
+
+#if defined(__WXPALMOS__)
+    #include "wx/palmos/app.h"
+#elif defined(__WXMSW__)
+    #include "wx/msw/app.h"
+#elif defined(__WXMOTIF__)
+    #include "wx/motif/app.h"
+#elif defined(__WXMGL__)
+    #include "wx/mgl/app.h"
+#elif defined(__WXDFB__)
+    #include "wx/dfb/app.h"
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/app.h"
+#elif defined(__WXGTK__)
+    #include "wx/gtk1/app.h"
+#elif defined(__WXX11__)
+    #include "wx/x11/app.h"
+#elif defined(__WXMAC__)
+    #include "wx/mac/app.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/app.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/app.h"

 #endif
 
 #endif
 

-#define IMPLEMENT_APP(appname)                          \
-        wxApp *wxCreateApp(void) { return new appname; }      \
-               wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
-        appname& wxGetApp(void) { return *(appname *)wxTheApp; } \
-        IMPLEMENT_WXWIN_MAIN
+#else // !GUI
+
+// wxApp is defined in core and we cannot define another one in wxBase,
+// so use the preprocessor to allow using wxApp in console programs too
+#define wxApp wxAppConsole
+
+#endif // GUI/!GUI
+
+// ----------------------------------------------------------------------------
+// the global data
+// ----------------------------------------------------------------------------
+
+// for compatibility, we define this macro to access the global application
+// object of type wxApp
+//
+// note that instead of using of wxTheApp in application code you should
+// consider using DECLARE_APP() after which you may call wxGetApp() which will
+// return the object of the correct type (i.e. MyApp and not wxApp)
+//
+// the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in
+// console mode it does nothing at all
+#define wxTheApp wx_static_cast(wxApp*, wxApp::GetInstance())
+
+// ----------------------------------------------------------------------------
+// global functions
+// ----------------------------------------------------------------------------
+
+// event loop related functions only work in GUI programs
+// ------------------------------------------------------
+
+// Force an exit from main loop
+extern void WXDLLIMPEXP_BASE wxExit();
+
+// avoid redeclaring this function here if it had been already declated by
+// wx/utils.h, this results in warnings from g++ with -Wredundant-decls
+#ifndef wx_YIELD_DECLARED
+#define wx_YIELD_DECLARED
+
+// Yield to other apps/messages
+extern bool WXDLLIMPEXP_BASE wxYield();
+
+#endif // wx_YIELD_DECLARED

 
 

-#define DECLARE_APP(appname) \
-       extern appname& wxGetApp(void) ;
+// Yield to other apps/messages
+extern void WXDLLIMPEXP_BASE wxWakeUpIdle();

 
 

+// ----------------------------------------------------------------------------
+// macros for dynamic creation of the application object
+// ----------------------------------------------------------------------------

 
 

+// Having a global instance of this class allows wxApp to be aware of the app
+// creator function. wxApp can then call this function to create a new app
+// object. Convoluted, but necessary.
+
+class WXDLLIMPEXP_BASE wxAppInitializer
+{
+public:
+    wxAppInitializer(wxAppInitializerFunction fn)
+        { wxApp::SetInitializerFunction(fn); }
+};
+
+// the code below defines a IMPLEMENT_WXWIN_MAIN macro which you can use if
+// your compiler really, really wants main() to be in your main program (e.g.
+// hello.cpp). Now IMPLEMENT_APP should add this code if required.
+
+#define IMPLEMENT_WXWIN_MAIN_CONSOLE \
+        int main(int argc, char **argv) { return wxEntry(argc, argv); }
+
+// port-specific header could have defined it already in some special way
+#ifndef IMPLEMENT_WXWIN_MAIN
+    #define IMPLEMENT_WXWIN_MAIN IMPLEMENT_WXWIN_MAIN_CONSOLE
+#endif // defined(IMPLEMENT_WXWIN_MAIN)
+
+#ifdef __WXUNIVERSAL__
+    #include "wx/univ/theme.h"
+
+    #ifdef wxUNIV_DEFAULT_THEME
+        #define IMPLEMENT_WX_THEME_SUPPORT \
+            WX_USE_THEME(wxUNIV_DEFAULT_THEME);
+    #else
+        #define IMPLEMENT_WX_THEME_SUPPORT
+    #endif
+#else
+    #define IMPLEMENT_WX_THEME_SUPPORT

 #endif
 #endif

-    // __APPH_BASE__
+
+// Use this macro if you want to define your own main() or WinMain() function
+// and call wxEntry() from there.
+#define IMPLEMENT_APP_NO_MAIN(appname)                                      \
+    wxAppConsole *wxCreateApp()                                             \
+    {                                                                       \
+        wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE,         \
+                                        "your program");                    \
+        return new appname;                                                 \
+    }                                                                       \
+    wxAppInitializer                                                        \
+        wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp);        \
+    DECLARE_APP(appname)                                                    \
+    appname& wxGetApp() { return *wx_static_cast(appname*, wxApp::GetInstance()); }
+
+// Same as IMPLEMENT_APP() normally but doesn't include themes support in
+// wxUniversal builds
+#define IMPLEMENT_APP_NO_THEMES(appname)    \
+    IMPLEMENT_APP_NO_MAIN(appname)          \
+    IMPLEMENT_WXWIN_MAIN
+
+// Use this macro exactly once, the argument is the name of the wxApp-derived
+// class which is the class of your application.
+#define IMPLEMENT_APP(appname)              \
+    IMPLEMENT_APP_NO_THEMES(appname)        \
+    IMPLEMENT_WX_THEME_SUPPORT
+
+// Same as IMPLEMENT_APP(), but for console applications.
+#define IMPLEMENT_APP_CONSOLE(appname)      \
+    IMPLEMENT_APP_NO_MAIN(appname)          \
+    IMPLEMENT_WXWIN_MAIN_CONSOLE
+
+// this macro can be used multiple times and just allows you to use wxGetApp()
+// function
+#define DECLARE_APP(appname) extern appname& wxGetApp();
+
+
+// declare the stuff defined by IMPLEMENT_APP() macro, it's not really needed
+// anywhere else but at the very least it suppresses icc warnings about
+// defining extern symbols without prior declaration, and it shouldn't do any
+// harm
+extern wxAppConsole *wxCreateApp();
+extern wxAppInitializer wxTheAppInitializer;
+
+#endif // _WX_APP_H_BASE_