Add virtual keyword where applicable.

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

diff --git a/include/wx/app.h b/include/wx/app.h
index cc050b1d3decc39b461c9cca98a416e3351875b0..4fc847b33c37ea7aa210f5d6a62686abb4912e53 100644 (file)
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -21,6 +21,8 @@
 
 #if wxUSE_GUI
     #include "wx/window.h"  // for wxTopLevelWindows
 
 #if wxUSE_GUI
     #include "wx/window.h"  // for wxTopLevelWindows

+
+    #include "wx/vidmode.h"

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


@@ -32,6 +34,10 @@ class WXDLLIMPEXP_BASE wxCmdLineParser;
 class WXDLLIMPEXP_BASE wxLog;
 class WXDLLIMPEXP_BASE wxMessageOutput;
 
 class WXDLLIMPEXP_BASE wxLog;
 class WXDLLIMPEXP_BASE wxMessageOutput;
 

+#if wxUSE_GUI
+    class WXDLLEXPORT wxEventLoop;
+#endif
+

 // ----------------------------------------------------------------------------
 // typedefs
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // typedefs
 // ----------------------------------------------------------------------------


@@ -49,33 +55,6 @@ enum
     wxPRINT_POSTSCRIPT = 2
 };
 
     wxPRINT_POSTSCRIPT = 2
 };
 

-// ----------------------------------------------------------------------------
-// support for framebuffer ports
-// ----------------------------------------------------------------------------
-
-#if wxUSE_GUI
-// VS: Fullscreen/framebuffer application needs to choose display mode prior
-//     to wxWindows initialization. This class holds information about display
-//     mode. It is used by  wxApp::Set/GetDisplayMode.
-class WXDLLIMPEXP_CORE wxDisplayModeInfo
-{
-public:
-    wxDisplayModeInfo() : m_ok(FALSE) {}
-    wxDisplayModeInfo(unsigned width, unsigned height, unsigned depth)
-        : m_width(width), m_height(height), m_depth(depth), m_ok(TRUE) {}
-
-    unsigned GetWidth() const { return m_width; }
-    unsigned GetHeight() const { return m_height; }
-    unsigned GetDepth() const { return m_depth; }
-    bool IsOk() const { return m_ok; }
-
-private:
-    unsigned m_width, m_height, m_depth;
-    bool     m_ok;
-};
-#endif // wxUSE_GUI
-
-

 // ----------------------------------------------------------------------------
 // wxAppConsole: wxApp for non-GUI applications
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxAppConsole: wxApp for non-GUI applications
 // ----------------------------------------------------------------------------


@@ -107,7 +86,7 @@ public:
     // class OnInit() to do it.
     virtual bool OnInit();
 
     // class OnInit() to do it.
     virtual bool OnInit();
 

-    // this is here only temproary hopefully (FIXME)
+    // this is here only temporary hopefully (FIXME)

     virtual bool OnInitGui() { return true; }
 
     // This is the replacement for the normal main(): all program work should
     virtual bool OnInitGui() { return true; }
 
     // This is the replacement for the normal main(): all program work should


@@ -174,17 +153,17 @@ 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
 


@@ -207,12 +186,12 @@ public:
         // user-defined class (default implementation creates a wxLogGui
         // object) -- this log object is used by default by all wxLogXXX()
         // functions.
         // user-defined class (default implementation creates a wxLogGui
         // object) -- this log object is used by default by all wxLogXXX()
         // functions.

-    virtual wxLog *CreateLogTarget();
+    wxDEPRECATED( virtual wxLog *CreateLogTarget() );

 #endif // wxUSE_LOG
 
         // similar to CreateLogTarget() but for the global wxMessageOutput
         // object
 #endif // wxUSE_LOG
 
         // similar to CreateLogTarget() but for the global wxMessageOutput
         // object

-    virtual wxMessageOutput *CreateMessageOutput();
+    wxDEPRECATED( virtual wxMessageOutput *CreateMessageOutput() );

 
 #endif // WXWIN_COMPATIBILITY_2_4
 
 
 #endif // WXWIN_COMPATIBILITY_2_4
 


@@ -229,6 +208,23 @@ 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);
 

+#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 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 or use OnExceptionInMainLoop()
+    virtual void OnUnhandledException() { }
+#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
     // event loop iteration in GUI mode but if there is no main loop, it may be
     // 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


@@ -241,17 +237,30 @@ public:
     // make sure that idle events are sent again
     virtual void WakeUpIdle() { }
 
     // make sure that idle events are sent again
     virtual void WakeUpIdle() { }
 

+    // this is just a convenience: by providing its implementation here we
+    // avoid #ifdefs in the code using it
+    static bool IsMainLoopRunning() { return false; }
+

 
     // debugging support
     // -----------------
 
 
     // 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)
     //
     // 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 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,
     virtual void OnAssert(const wxChar *file,
                           int line,
                           const wxChar *cond,


@@ -264,10 +273,7 @@ public:
     static bool CheckBuildOptions(const char *optionsSignature,
                                   const char *componentName);
 #if WXWIN_COMPATIBILITY_2_4
     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");
-    }
+    wxDEPRECATED( static bool CheckBuildOptions(const wxBuildOptions& buildOptions) );

 #endif
 
     // implementation only from now on
 #endif
 
     // implementation only from now on


@@ -366,56 +372,69 @@ public:
     // the worker functions - usually not used directly by the user code
     // -----------------------------------------------------------------
 
     // the worker functions - usually not used directly by the user code
     // -----------------------------------------------------------------
 

+        // return true if we're running main loop, i.e. if the events can
+        // (already) be dispatched
+    static bool IsMainLoopRunning()
+    {
+        wxAppBase *app = wx_static_cast(wxAppBase *, GetInstance());
+        return app && app->m_mainLoop != NULL;
+    }
+

         // execute the main GUI loop, the function returns when the loop ends
         // execute the main GUI loop, the function returns when the loop ends

-    virtual int MainLoop() = 0;
+    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!)
 
         // 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() = 0;
-
-        // returns TRUE if the program is initialized
-    virtual bool Initialized() = 0;
+    virtual void ExitMainLoop();

 
 

-        // returns TRUE if there are unprocessed events in the event queue
-    virtual bool Pending() = 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
 
         // process the first event in the event queue (blocks until an event

-        // apperas if there are none currently)
-    virtual void Dispatch() = 0;
+        // 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
 
         // process all currently pending events right now
         //
         // it is an error to call Yield() recursively unless the value of

-        // onlyIfNeeded is TRUE
+        // 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!
         //
         // 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;
+    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
         //
 
         // 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() ;
+        // it should return true if more idle events are needed, false if not
+    virtual bool ProcessIdle();

 
         // Send idle event to window and all subwindows
 
         // 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);
+
+#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

 
 
     // 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


@@ -437,7 +456,7 @@ public:
         // 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; }


@@ -450,11 +469,11 @@ public:
 
         // Get display mode that is used use. This is only used in framebuffer
         // wxWin ports (such as wxMGL).
 
         // Get display mode that is used use. This is only used in framebuffer
         // wxWin ports (such as wxMGL).

-    virtual wxDisplayModeInfo GetDisplayMode() const { return wxDisplayModeInfo(); }
+    virtual wxVideoMode GetDisplayMode() const { return wxVideoMode(); }

         // Set display mode to use. This is only used in framebuffer wxWin
         // ports (such as wxMGL). This method should be called from
         // wxApp::OnInitGui
         // Set display mode to use. This is only used in framebuffer wxWin
         // ports (such as wxMGL). This method should be called from
         // wxApp::OnInitGui

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

 
         // set use of best visual flag (see below)
     void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; }
 
         // set use of best visual flag (see below)
     void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; }


@@ -484,6 +503,16 @@ 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
+
+    // perform standard OnIdle behaviour, ensure that this is always called
+    void OnIdle(wxIdleEvent& event);
+

 
 protected:
     // delete all objects in wxPendingDelete list
 
 protected:
     // delete all objects in wxPendingDelete list


@@ -493,6 +522,10 @@ protected:
     virtual wxAppTraits *CreateTraits();
 
 
     virtual wxAppTraits *CreateTraits();
 
 

+    // 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;
+

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


@@ -507,17 +540,21 @@ 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;
 

-    // does any of our windows has focus?
+    // does any of our windows have focus?

     bool m_isActive;
 
 
     DECLARE_NO_COPY_CLASS(wxAppBase)
 };
 
     bool m_isActive;
 
 
     DECLARE_NO_COPY_CLASS(wxAppBase)
 };
 

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

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


@@ -525,14 +562,18 @@ protected:
 // ----------------------------------------------------------------------------
 
 #if wxUSE_GUI
 // ----------------------------------------------------------------------------
 
 #if wxUSE_GUI

-    #if defined(__WXMSW__)
+    #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"
         #include "wx/msw/app.h"
     #elif defined(__WXMOTIF__)
         #include "wx/motif/app.h"
     #elif defined(__WXMGL__)
         #include "wx/mgl/app.h"

-    #elif defined(__WXGTK__)
+    #elif defined(__WXGTK20__)

         #include "wx/gtk/app.h"
         #include "wx/gtk/app.h"

+    #elif defined(__WXGTK__)
+        #include "wx/gtk1/app.h"

     #elif defined(__WXX11__)
         #include "wx/x11/app.h"
     #elif defined(__WXMAC__)
     #elif defined(__WXX11__)
         #include "wx/x11/app.h"
     #elif defined(__WXMAC__)


@@ -593,32 +634,17 @@ 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.

 
 

-#if !wxUSE_GUI || !defined(__WXMSW__)
-    #define IMPLEMENT_WXWIN_MAIN                                              \
+#define IMPLEMENT_WXWIN_MAIN_CONSOLE \

         int main(int argc, char **argv) { return wxEntry(argc, argv); }
         int main(int argc, char **argv) { return wxEntry(argc, argv); }

-#elif defined(__WXMSW__)
-    // we need HINSTANCE declaration to define WinMain()
-    #include "wx/msw/wrapwin.h"
-
-    #define IMPLEMENT_WXWIN_MAIN \
-        extern int wxEntry(HINSTANCE hInstance,                               \
-                           HINSTANCE hPrevInstance = NULL,                    \
-                           char *pCmdLine = NULL,                             \
-                           int nCmdShow = SW_NORMAL);                         \
-        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"


@@ -641,6 +667,7 @@ public:
     }                                                                       \
     wxAppInitializer                                                        \
         wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp);        \
     }                                                                       \
     wxAppInitializer                                                        \
         wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp);        \

+    DECLARE_APP(appname)                                                    \

     appname& wxGetApp() { return *(appname *)wxTheApp; }
 
 // Same as IMPLEMENT_APP() normally but doesn't include themes support in
     appname& wxGetApp() { return *(appname *)wxTheApp; }
 
 // Same as IMPLEMENT_APP() normally but doesn't include themes support in


@@ -655,9 +682,21 @@ public:
     IMPLEMENT_APP_NO_THEMES(appname)        \
     IMPLEMENT_WX_THEME_SUPPORT
 
     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();
 
 // this macro can be used multiple times and just allows you to use 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_