No changes, just removed hard tabs and trailing white space.

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

diff --git a/include/wx/app.h b/include/wx/app.h
index 7c2b61c4e30b459f212bc414c1c14833948a51d1..87642e3ecba82c75d53698d506df2c9a7e75dc13 100644 (file)
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -18,30 +18,21 @@
 // ----------------------------------------------------------------------------
 
 #include "wx/event.h"       // for the base class
 // ----------------------------------------------------------------------------
 
 #include "wx/event.h"       // for the base class

-
-#if wxUSE_GUI
-    #include "wx/window.h"  // for wxTopLevelWindows
-
-    #include "wx/vidmode.h"
-#endif // wxUSE_GUI
-

 #include "wx/build.h"
 #include "wx/build.h"

+#include "wx/cmdargs.h"     // for wxCmdLineArgsArray used by wxApp::argv

 #include "wx/init.h"        // we must declare wxEntry()
 #include "wx/init.h"        // we must declare wxEntry()

+#include "wx/intl.h"        // for wxLayoutDirection

 
 

-class WXDLLIMPEXP_BASE wxAppConsole;
-class WXDLLIMPEXP_BASE wxAppTraits;
-class WXDLLIMPEXP_BASE wxCmdLineParser;
-class WXDLLIMPEXP_BASE wxLog;
-class WXDLLIMPEXP_BASE wxMessageOutput;
-
-// wxUSE_EVTLOOP_IN_APP is a temporary hack needed until all ports are updated
-// to use wxEventLoop, otherwise we get linking errors on wxMac, it's going to
-// disappear a.s.a.p.
-#ifdef __WXMAC__
-    #define wxUSE_EVTLOOP_IN_APP 0
-#else
-    #define wxUSE_EVTLOOP_IN_APP 1
-    class WXDLLEXPORT wxEventLoop;
+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;
+    class WXDLLIMPEXP_FWD_CORE wxWindow;

 #endif
 
 // ----------------------------------------------------------------------------
 #endif
 
 // ----------------------------------------------------------------------------


@@ -62,15 +53,24 @@ enum
 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------

-// wxAppConsole: wxApp for non-GUI applications
+// global variables

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-class WXDLLIMPEXP_BASE wxAppConsole : public wxEvtHandler
+// use of this list is strongly deprecated, use wxApp ScheduleForDestruction()
+// and IsScheduledForDestruction()  methods instead of this list directly, it
+// is here for compatibility purposes only
+extern WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete;
+
+// ----------------------------------------------------------------------------
+// wxAppConsoleBase: wxApp for non-GUI applications
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler

 {
 public:
     // ctor and dtor
 {
 public:
     // ctor and dtor

-    wxAppConsole();
-    virtual ~wxAppConsole();
+    wxAppConsoleBase();
+    virtual ~wxAppConsoleBase();

 
 
     // the virtual functions which may/must be overridden in the derived class
 
 
     // the virtual functions which may/must be overridden in the derived class


@@ -92,17 +92,25 @@ public:
     // class OnInit() to do it.
     virtual bool OnInit();
 
     // class OnInit() to do it.
     virtual bool OnInit();
 

-    // this is here only temproary 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.
     // 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() = 0;
+    virtual int OnRun();
+
+    // This is called by wxEventLoopBase::SetActive(): you should put the code
+    // which needs an active event loop here.
+    // Note that this function is called whenever an event loop is activated;
+    // you may want to use wxEventLoopBase::IsMain() to perform initialization
+    // specific for the app's main event loop.
+    virtual void OnEventLoopEnter(wxEventLoopBase* WXUNUSED(loop)) {}

 
     // 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 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 called by wxEventLoopBase::OnExit() for each event loop which
+    // is exited.
+    virtual void OnEventLoopExit(wxEventLoopBase* WXUNUSED(loop)) {}
+

     // 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!
     // 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!


@@ -116,14 +124,6 @@ public:
     // crash.
     virtual void OnFatalException() { }
 
     // crash.
     virtual void OnFatalException() { }
 

-#if wxUSE_EXCEPTIONS
-    // Called when an unhandled C++ exception occurs inside OnRun(): note that
-    // the exception type is lost by now, so if you really want to handle the
-    // exception you should override OnRun() and put a try/catch around
-    // MainLoop() call there
-    virtual void OnUnhandledException() { }
-#endif // wxUSE_EXCEPTIONS
-

     // Called from wxExit() function, should terminate the application a.s.a.p.
     virtual void Exit();
 
     // Called from wxExit() function, should terminate the application a.s.a.p.
     virtual void Exit();
 


@@ -142,6 +142,19 @@ public:
     }
     void SetAppName(const wxString& name) { m_appName = name; }
 
     }
     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().Capitalize()
+                                        : 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 app class name
     wxString GetClassName() const { return m_className; }
     void SetClassName(const wxString& name) { m_className = name; }


@@ -150,6 +163,19 @@ public:
     const wxString& GetVendorName() const { return m_vendorName; }
     void SetVendorName(const wxString& name) { m_vendorName = 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
     // ----------------------
 
     // cmd line parsing stuff
     // ----------------------


@@ -167,17 +193,17 @@ public:
     // override it!)
     virtual void OnInitCmdLine(wxCmdLineParser& parser);
 
     // 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
+    // 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);
 
     // version if you override it!)
     virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
 

-    // called if "--help" option was specified, return TRUE to continue
-    // and FALSE to exit
+    // 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
     virtual bool OnCmdLineHelp(wxCmdLineParser& parser);
 
     // called if incorrect command line options were given, return

-    // FALSE to abort and TRUE to continue
+    // false to abort and true to continue

     virtual bool OnCmdLineError(wxCmdLineParser& parser);
 #endif // wxUSE_CMDLINE_PARSER
 
     virtual bool OnCmdLineError(wxCmdLineParser& parser);
 #endif // wxUSE_CMDLINE_PARSER
 


@@ -189,25 +215,24 @@ public:
     // 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
     // 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 façade
+    // allows us to abstract the differences behind the common facade

     wxAppTraits *GetTraits();
 
     wxAppTraits *GetTraits();
 

-    // the functions below shouldn't be used now that we have wxAppTraits
-#if WXWIN_COMPATIBILITY_2_4
-
-#if wxUSE_LOG
-        // override this function to create default log target of arbitrary
-        // user-defined class (default implementation creates a wxLogGui
-        // object) -- this log object is used by default by all wxLogXXX()
-        // functions.
-    virtual wxLog *CreateLogTarget();
-#endif // wxUSE_LOG
-
-        // similar to CreateLogTarget() but for the global wxMessageOutput
-        // object
-    virtual wxMessageOutput *CreateMessageOutput();
+    // this function provides safer access to traits object than
+    // wxTheApp->GetTraits() during startup or termination when the global
+    // application object itself may be unavailable
+    //
+    // of course, it still returns NULL in this case and the caller must check
+    // for it
+    static wxAppTraits *GetTraitsIfExists();

 
 

-#endif // WXWIN_COMPATIBILITY_2_4
+    // returns the main event loop instance, i.e. the event loop which is started
+    // by OnRun() and which dispatches all events sent from the native toolkit
+    // to the application (except when new event loops are temporarily set-up).
+    // The returned value maybe NULL. Put initialization code which needs a
+    // non-NULL main event loop into OnEventLoopEnter().
+    wxEventLoopBase* GetMainLoop() const
+        { return m_mainLoop; }

 
 
     // event processing functions
 
 
     // event processing functions


@@ -222,7 +247,21 @@ public:
     // had been already processed or won't be processed at all, respectively
     virtual int FilterEvent(wxEvent& event);
 
     // had been already processed or won't be processed at all, respectively
     virtual int FilterEvent(wxEvent& event);
 

+    // return true if we're running event loop, i.e. if the events can
+    // (already) be dispatched
+    static bool IsMainLoopRunning();
+

 #if wxUSE_EXCEPTIONS
 #if wxUSE_EXCEPTIONS

+    // execute the functor to handle the given event
+    //
+    // this is a generalization of HandleEvent() below and the base class
+    // implementation of CallEventHandler() still calls HandleEvent() for
+    // compatibility for functors which are just wxEventFunctions (i.e. methods
+    // of wxEvtHandler)
+    virtual void CallEventHandler(wxEvtHandler *handler,
+                                  wxEventFunctor& functor,
+                                  wxEvent& event) const;
+

     // call the specified handler on the given object with the given event
     //
     // this method only exists to allow catching the exceptions thrown by any
     // call the specified handler on the given object with the given event
     //
     // this method only exists to allow catching the exceptions thrown by any


@@ -231,19 +270,109 @@ public:
     virtual void HandleEvent(wxEvtHandler *handler,
                              wxEventFunction func,
                              wxEvent& event) const;
     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();
+
+    // 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
 
 #endif // wxUSE_EXCEPTIONS
 

-    // process all events in the wxPendingEvents list -- it is necessary to
-    // call this function to process posted events. This happens during each
+
+    // pending events
+    // --------------
+
+    // IMPORTANT: all these methods conceptually belong to wxEventLoopBase
+    //            but for many reasons we need to allow queuing of events
+    //            even when there's no event loop (e.g. in wxApp::OnInit);
+    //            this feature is used e.g. to queue events on secondary threads
+    //            or in wxPython to use wx.CallAfter before the GUI is initialized
+
+    // process all events in the m_handlersWithPendingEvents 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();
 
     // event loop iteration in GUI mode but if there is no main loop, it may be
     // also called directly.
     virtual void ProcessPendingEvents();
 

-    // doesn't do anything in this class, just a hook for GUI wxApp
-    virtual bool Yield(bool WXUNUSED(onlyIfNeeded) = false) { return true; }
+    // check if there are pending events on global pending event list
+    bool HasPendingEvents() const;
+
+    // temporary suspends processing of the pending events
+    void SuspendProcessingOfPendingEvents();
+
+    // resume processing of the pending events previously stopped because of a
+    // call to SuspendProcessingOfPendingEvents()
+    void ResumeProcessingOfPendingEvents();
+
+    // called by ~wxEvtHandler to (eventually) remove the handler from the list of
+    // the handlers with pending events
+    void RemovePendingEventHandler(wxEvtHandler* toRemove);
+
+    // adds an event handler to the list of the handlers with pending events
+    void AppendPendingEventHandler(wxEvtHandler* toAppend);
+
+    // moves the event handler from the list of the handlers with pending events
+    //to the list of the handlers with _delayed_ pending events
+    void DelayPendingEventHandler(wxEvtHandler* toDelay);
+
+    // deletes the current pending events
+    void DeletePendingEvents();
+
+
+    // delayed destruction
+    // -------------------
+
+    // If an object may have pending events for it, it shouldn't be deleted
+    // immediately as this would result in a crash when trying to handle these
+    // events: instead, it should be scheduled for destruction and really
+    // destroyed only after processing all pending events.
+    //
+    // Notice that this is only possible if we have a running event loop,
+    // otherwise the object is just deleted directly by ScheduleForDestruction()
+    // and IsScheduledForDestruction() always returns false.
+
+    // schedule the object for destruction in the near future
+    void ScheduleForDestruction(wxObject *object);
+
+    // return true if the object is scheduled for destruction
+    bool IsScheduledForDestruction(wxObject *object) const;

 
 

-    // make sure that idle events are sent again
-    virtual void WakeUpIdle() { }
+
+    // wxEventLoop-related methods
+    // ---------------------------
+
+    // all these functions are forwarded to the corresponding methods of the
+    // currently active event loop -- and do nothing if there is none
+    virtual bool Pending();
+    virtual bool Dispatch();
+
+    virtual int MainLoop();
+    virtual void ExitMainLoop();
+
+    bool Yield(bool onlyIfNeeded = false);
+
+    virtual void WakeUpIdle();
+
+    // this method is called by the active event loop when there are no events
+    // to process
+    //
+    // by default it generates the idle events and if you override it in your
+    // derived class you should call the base class version to ensure that idle
+    // events are still sent out
+    virtual bool ProcessIdle();
+
+    // this virtual function is overridden in GUI wxApp to always return true
+    // as GUI applications always have an event loop -- but console ones may
+    // have it or not, so it simply returns true if already have an event loop
+    // running but false otherwise
+    virtual bool UsesEventLoop() const;

 
 
     // debugging support
 
 
     // debugging support


@@ -253,26 +382,27 @@ public:
     // version does the normal processing (i.e. shows the usual assert failure
     // dialog box)
     //
     // version does the normal processing (i.e. shows the usual assert failure
     // dialog box)
     //

-    // the arguments are the place where the assert occured, the text of the
+    // 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
     // assert itself and the user-specified message

-#ifdef __WXDEBUG__
+    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);
     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);
 
     // 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);

-#if WXWIN_COMPATIBILITY_2_4
-    static bool CheckBuildOptions(const wxBuildOptions& buildOptions)
-    {
-        return CheckBuildOptions(buildOptions.m_signature, "your program");
-    }
-#endif

 
     // implementation only from now on
     // -------------------------------
 
     // implementation only from now on
     // -------------------------------


@@ -292,37 +422,88 @@ public:
 
 
     // command line arguments (public for backwards compatibility)
 
 
     // command line arguments (public for backwards compatibility)

-    int      argc;
-    wxChar **argv;
+    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

 
 protected:
 
 protected:

+    // delete all objects in wxPendingDelete list
+    //
+    // called from ProcessPendingEvents()
+    void DeletePendingObjects();
+

     // the function which creates the traits object when GetTraits() needs it
     // for the first time
     virtual wxAppTraits *CreateTraits();
 
     // 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;
 
     // 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)
 
     // application info (must be set from the user code)

-    wxString m_vendorName,      // vendor name (ACME Inc)
-             m_appName,         // app name
-             m_className;       // class name
+    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 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;
+
+
+    // pending events management vars:
+
+    // the array of the handlers with pending events which needs to be processed
+    // inside ProcessPendingEvents()
+    wxEvtHandlerArray m_handlersWithPendingEvents;
+
+    // helper array used by ProcessPendingEvents() to store the event handlers
+    // which have pending events but of these events none can be processed right now
+    // (because of a call to wxEventLoop::YieldFor() which asked to selectively process
+    // pending events)
+    wxEvtHandlerArray m_handlersWithPendingDelayedEvents;
+
+#if wxUSE_THREADS
+    // this critical section protects both the lists above
+    wxCriticalSection m_handlersWithPendingEventsLocker;
+#endif
+
+    // flag modified by Suspend/ResumeProcessingOfPendingEvents()
+    bool m_bDoPendingEventProcessing;
+
+    friend class WXDLLIMPEXP_FWD_BASE wxEvtHandler;

 
     // the application object is a singleton anyhow, there is no sense in
     // copying it
 
     // the application object is a singleton anyhow, there is no sense in
     // copying it

-    DECLARE_NO_COPY_CLASS(wxAppConsole)
+    wxDECLARE_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
+

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


@@ -370,59 +551,29 @@ public:
     // the worker functions - usually not used directly by the user code
     // -----------------------------------------------------------------
 
     // the worker functions - usually not used directly by the user code
     // -----------------------------------------------------------------
 

-        // execute the main GUI loop, the function returns when the loop ends
-    virtual int MainLoop();
-
-        // exit the main loop thus terminating the application
-    virtual void Exit();
-
-        // exit the main GUI loop during the next iteration (i.e. it does not
-        // stop the program immediately!)
-    virtual void ExitMainLoop();
-
-        // returns true if the program is initialized, i.e. OnInit() has been
-        // completed successfully
-    virtual bool Initialized() = 0;
-
-        // 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();
-
-        // 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;
+        // safer alternatives to Yield(), using wxWindowDisabler
+    virtual bool SafeYield(wxWindow *win, bool onlyIfNeeded);
+    virtual bool SafeYieldFor(wxWindow *win, long eventsToProcess);

 
         // this virtual function is called in the GUI mode when the application
         // becomes idle and normally just sends wxIdleEvent to all interested
         // parties
         //
 
         // 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
+        // it should return true if more idle events are needed, false if not

     virtual bool ProcessIdle();
 
         // Send idle event to window and all subwindows
     virtual bool ProcessIdle();
 
         // Send idle event to window and all subwindows

-        // Returns TRUE if more idle time is requested.
+        // Returns true if more idle time is requested.

     virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event);
 
     virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event);
 

-        // Perform standard OnIdle behaviour: call from port's OnIdle
-    void OnIdle(wxIdleEvent& event);
+        // override base class version: GUI apps always use an event loop
+    virtual bool UsesEventLoop() const { return true; }

 
 
     // top level window functions
     // --------------------------
 
 
 
     // top level window functions
     // --------------------------
 

-        // return TRUE if our app has focus
+        // return true if our app has focus

     virtual bool IsActive() const { return m_isActive; }
 
         // set the "main" top level window
     virtual bool IsActive() const { return m_isActive; }
 
         // set the "main" top level window


@@ -431,20 +582,12 @@ public:
         // 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)
         // 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
-    {
-        if (m_topWindow)
-            return m_topWindow;
-        else if (wxTopLevelWindows.GetCount() > 0)
-            return wxTopLevelWindows.GetFirst()->GetData();
-        else
-            return (wxWindow *)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
 
         // 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
+        // (with SetExitOnFrameDelete(false)), you'll have to call

         // ExitMainLoop() explicitly from somewhere.
     void SetExitOnFrameDelete(bool flag)
         { m_exitOnFrameDelete = flag ? Yes : No; }
         // ExitMainLoop() explicitly from somewhere.
     void SetExitOnFrameDelete(bool flag)
         { m_exitOnFrameDelete = flag ? Yes : No; }


@@ -456,15 +599,16 @@ public:
     // ------------------------------------------------------------------------
 
         // Get display mode that is used use. This is only used in framebuffer
     // ------------------------------------------------------------------------
 
         // Get display mode that is used use. This is only used in framebuffer

-        // wxWin ports (such as wxMGL).
-    virtual wxVideoMode GetDisplayMode() const { return wxVideoMode(); }
+        // wxWin ports (such as wxMGL or wxDFB).
+    virtual wxVideoMode GetDisplayMode() const;

         // Set display mode to use. This is only used in framebuffer wxWin
         // Set display mode to use. This is only used in framebuffer wxWin

-        // ports (such as wxMGL). This method should be called from
+        // ports (such as wxMGL or wxDFB). This method should be called from

         // wxApp::OnInitGui
         // wxApp::OnInitGui

-    virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return TRUE; }
+    virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; }

 
         // set use of best visual flag (see below)
 
         // set use of best visual flag (see below)

-    void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; }
+    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.
     bool GetUseBestVisual() const { return m_useBestVisual; }
 
         // set/get printing mode: see wxPRINT_XXX constants.


@@ -474,6 +618,13 @@ public:
     virtual void SetPrintMode(int WXUNUSED(mode)) { }
     int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }
 
     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)
     // ------------------------------------------------------------------------
 
     // command line parsing (GUI-specific)
     // ------------------------------------------------------------------------


@@ -491,21 +642,18 @@ public:
     // deactivated
     virtual void SetActive(bool isActive, wxWindow *lastFocus);
 
     // 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:
 
 protected:

-    // delete all objects in wxPendingDelete list
-    void DeletePendingObjects();
-

     // override base class method to use GUI traits
     virtual wxAppTraits *CreateTraits();
 
 
     // override base class method to use GUI traits
     virtual wxAppTraits *CreateTraits();
 
 

-#if wxUSE_EVTLOOP_IN_APP
-    // the main event loop of the application (may be NULL if the loop hasn't
-    // been started yet or has already terminated)
-    wxEventLoop *m_mainLoop;
-#endif // wxUSE_EVTLOOP_IN_APP
-

     // the main top level window (may be NULL)
     wxWindow *m_topWindow;
 
     // the main top level window (may be NULL)
     wxWindow *m_topWindow;
 


@@ -520,44 +668,56 @@ protected:
         Yes
     } m_exitOnFrameDelete;
 
         Yes
     } m_exitOnFrameDelete;
 

-    // TRUE if the apps whats to use the best visual on systems where
+    // 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;
     // 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 has focus?
+    // does any of our windows have focus?

     bool m_isActive;
 
     bool m_isActive;
 

-
-    DECLARE_NO_COPY_CLASS(wxAppBase)
+    wxDECLARE_NO_COPY_CLASS(wxAppBase);

 };
 
 };
 

-#endif // wxUSE_GUI
+#if WXWIN_COMPATIBILITY_2_6
+    inline bool wxAppBase::Initialized() { return true; }
+#endif // WXWIN_COMPATIBILITY_2_6

 
 // ----------------------------------------------------------------------------
 // now include the declaration of the real class
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // now include the declaration of the real class
 // ----------------------------------------------------------------------------
 

-#if wxUSE_GUI
-    #if 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(__WXGTK__)
-        #include "wx/gtk/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
+#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/osx/app.h"
+#elif defined(__WXCOCOA__)
+    #include "wx/cocoa/app.h"
+#elif defined(__WXPM__)
+    #include "wx/os2/app.h"
+#endif
+

 #else // !GUI
 #else // !GUI

-    // allow using just wxApp (instead of wxAppConsole) in console programs
-    typedef wxAppConsole wxApp;
+
+// 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
 
 // ----------------------------------------------------------------------------
 #endif // GUI/!GUI
 
 // ----------------------------------------------------------------------------


@@ -573,7 +733,7 @@ protected:
 //
 // the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in
 // console mode it does nothing at all
 //
 // 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 ((wxApp *)wxApp::GetInstance())
+#define wxTheApp static_cast<wxApp*>(wxApp::GetInstance())

 
 // ----------------------------------------------------------------------------
 // global functions
 
 // ----------------------------------------------------------------------------
 // global functions


@@ -583,13 +743,20 @@ protected:
 // ------------------------------------------------------
 
 // Force an exit from main loop
 // ------------------------------------------------------
 
 // Force an exit from main loop

-extern void WXDLLIMPEXP_BASE wxExit();
+WXDLLIMPEXP_BASE void wxExit();
+
+// avoid redeclaring this function here if it had been already declared 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
 
 // Yield to other apps/messages

-extern bool WXDLLIMPEXP_BASE wxYield();
+WXDLLIMPEXP_CORE bool wxYield();
+
+#endif // wx_YIELD_DECLARED

 
 // Yield to other apps/messages
 
 // Yield to other apps/messages

-extern void WXDLLIMPEXP_BASE wxWakeUpIdle();
+WXDLLIMPEXP_BASE void wxWakeUpIdle();

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


@@ -606,48 +773,27 @@ public:
         { wxApp::SetInitializerFunction(fn); }
 };
 
         { wxApp::SetInitializerFunction(fn); }
 };
 

-// 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.
+// 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); }
 
 
 #define IMPLEMENT_WXWIN_MAIN_CONSOLE \
         int main(int argc, char **argv) { return wxEntry(argc, argv); }
 

-#if !wxUSE_GUI || !defined(__WXMSW__)
-    #define IMPLEMENT_WXWIN_MAIN                                              \
-        IMPLEMENT_WXWIN_MAIN_CONSOLE
-#elif defined(__WXMSW__)
-    // we need HINSTANCE declaration to define WinMain()
-    #include "wx/msw/wrapwin.h"
-
-    #ifdef SW_SHOWNORMAL
-    #define wxSW_SHOWNORMAL SW_SHOWNORMAL
-    #else
-    #define wxSW_SHOWNORMAL 0
-    #endif
-
-    #define IMPLEMENT_WXWIN_MAIN \
-        extern int wxEntry(HINSTANCE hInstance,                               \
-                           HINSTANCE hPrevInstance = NULL,                    \
-                           char *pCmdLine = NULL,                             \
-                           int nCmdShow = wxSW_SHOWNORMAL);                         \
-        extern "C" int WINAPI WinMain(HINSTANCE hInstance,                    \
-                                      HINSTANCE hPrevInstance,                \
-                                      char *lpCmdLine,                        \
-                                      int nCmdShow)                           \
-        {                                                                     \
-            return wxEntry(hInstance, hPrevInstance, lpCmdLine, nCmdShow);    \
-        }
-#else
-    #define IMPLEMENT_WXWIN_MAIN
-#endif
+// 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 __WXUNIVERSAL__
     #include "wx/univ/theme.h"
 

-    #define IMPLEMENT_WX_THEME_SUPPORT \
-        WX_USE_THEME(win32); \
-        WX_USE_THEME(gtk);
+    #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
 #else
     #define IMPLEMENT_WX_THEME_SUPPORT
 #endif


@@ -663,7 +809,8 @@ public:
     }                                                                       \
     wxAppInitializer                                                        \
         wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp);        \
     }                                                                       \
     wxAppInitializer                                                        \
         wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp);        \

-    appname& wxGetApp() { return *(appname *)wxTheApp; }
+    DECLARE_APP(appname)                                                    \
+    appname& wxGetApp() { return *static_cast<appname*>(wxApp::GetInstance()); }

 
 // Same as IMPLEMENT_APP() normally but doesn't include themes support in
 // wxUniversal builds
 
 // Same as IMPLEMENT_APP() normally but doesn't include themes support in
 // wxUniversal builds


@@ -686,5 +833,12 @@ public:
 // function
 #define DECLARE_APP(appname) extern appname& wxGetApp();
 
 // function
 #define DECLARE_APP(appname) extern appname& wxGetApp();
 

-#endif // _WX_APP_H_BASE_

 
 

+// 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_