#if wxUSE_GUI
#include "wx/window.h" // for wxTopLevelWindows
+
+ #include "wx/vidmode.h"
#endif // wxUSE_GUI
#include "wx/build.h"
-
-class WXDLLEXPORT wxApp;
-class WXDLLEXPORT wxAppTraits;
-class WXDLLEXPORT wxCmdLineParser;
-class WXDLLEXPORT wxLog;
-class WXDLLEXPORT wxMessageOutput;
+#include "wx/init.h" // we must declare wxEntry()
+
+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;
+#endif
// ----------------------------------------------------------------------------
// typedefs
// ----------------------------------------------------------------------------
// the type of the function used to create a wxApp object on program start up
-typedef wxApp* (*wxAppInitializerFunction)();
+typedef wxAppConsole* (*wxAppInitializerFunction)();
// ----------------------------------------------------------------------------
// constants
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 WXDLLEXPORT 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
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxAppConsole : public wxEvtHandler
+class WXDLLIMPEXP_BASE wxAppConsole : public wxEvtHandler
{
public:
// ctor and dtor
// 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() = 0;
// 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
// crash.
virtual void OnFatalException() { }
+#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();
+
+ // 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();
#if wxUSE_CMDLINE_PARSER
// this one is called from OnInit() to add all supported options
- // to the given parser
+ // 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
+ // 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
+ // 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
+ // false to abort and true to continue
virtual bool OnCmdLineError(wxCmdLineParser& parser);
#endif // wxUSE_CMDLINE_PARSER
// 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;
+#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
// 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
// -----------------
// 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 wxBuildOptions& buildOptions);
-
+ 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
// -------------------------------
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;
// function used for dynamic wxApp creation
static wxAppInitializerFunction ms_appInitFn;
+ // the one and only global application object
+ static wxAppConsole *ms_appInstance;
+
+
// application info (must be set from the user code)
wxString m_vendorName, // vendor name (ACME Inc)
m_appName, // app name
#if wxUSE_GUI
-class WXDLLEXPORT wxAppBase : public wxAppConsole
+class WXDLLIMPEXP_CORE wxAppBase : public wxAppConsole
{
public:
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 in GUI applications, always in console ones.
virtual int OnRun();
- // exit the main loop thus terminating the application
- virtual void Exit();
+ // 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
// -----------------------------------------------------------------
+ // return true if we're running main loop, i.e. if the events can
+ // (already) be dispatched
+ static bool IsMainLoopRunning()
+ {
+#if wxUSE_EVTLOOP_IN_APP
+ wxAppBase *app = wx_static_cast(wxAppBase *, GetInstance());
+ return app && app->m_mainLoop != NULL;
+#else
+ return false;
+#endif
+ }
+
// 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!)
- 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
- // 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
- // 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!
- 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
//
- // it should return TRUE if more idle events are needed, FALSE if not
- virtual bool ProcessIdle() = 0;
+ // 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);
+
+ // Perform standard OnIdle behaviour: call from port's OnIdle
+ void OnIdle(wxIdleEvent& event);
// 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
// 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; }
// 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
- 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; }
int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }
+ // command line parsing (GUI-specific)
+ // ------------------------------------------------------------------------
+
+#if wxUSE_CMDLINE_PARSER
+ virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
+ virtual void OnInitCmdLine(wxCmdLineParser& parser);
+#endif
+
// miscellaneous other stuff
// ------------------------------------------------------------------------
// deactivated
virtual void SetActive(bool isActive, wxWindow *lastFocus);
+ // OBSOLETE: don't use, always returns true
+ //
+ // returns true if the program is successfully initialized
+ bool Initialized() { return true; }
+
protected:
+ // delete all objects in wxPendingDelete list
+ void DeletePendingObjects();
+
// 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;
Yes
} m_exitOnFrameDelete;
- // TRUE if the apps whats to use the best visual on systems where
+ // true if the apps whats to use the best visual on systems where
// more than one are available (Sun, SGI, XFree86 4.0 ?)
bool m_useBestVisual;
#include "wx/os2/app.h"
#endif
#else // !GUI
- // can't use typedef because wxApp forward declared as a class
- class WXDLLEXPORT wxApp : public wxAppConsole
- {
- };
+ // allow using just wxApp (instead of wxAppConsole) in console programs
+ typedef wxAppConsole wxApp;
#endif // GUI/!GUI
// ----------------------------------------------------------------------------
// the global data
// ----------------------------------------------------------------------------
-// the one and only application object - use of wxTheApp in application code
-// is discouraged, 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)
-WXDLLEXPORT_DATA(extern wxApp*) wxTheApp;
+// 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 ((wxApp *)wxApp::GetInstance())
// ----------------------------------------------------------------------------
// global functions
// ------------------------------------------------------
// Force an exit from main loop
-extern void WXDLLEXPORT wxExit();
+extern void WXDLLIMPEXP_BASE wxExit();
// Yield to other apps/messages
-extern bool WXDLLEXPORT wxYield();
+extern bool WXDLLIMPEXP_BASE wxYield();
// Yield to other apps/messages
-extern void WXDLLEXPORT wxWakeUpIdle();
-
-
-// console applications may avoid using DECLARE_APP and IMPLEMENT_APP macros
-// and call these functions instead at the program startup and termination
-// -------------------------------------------------------------------------
-
-#if !wxUSE_GUI
-
-// initialize the library (may be called as many times as needed, but each
-// call to wxInitialize() must be matched by wxUninitialize())
-extern bool WXDLLEXPORT wxInitialize();
-
-// clean up - the library can't be used any more after the last call to
-// wxUninitialize()
-extern void WXDLLEXPORT wxUninitialize();
-
-// create an object of this class on stack to initialize/cleanup thel ibrary
-// automatically
-class WXDLLEXPORT wxInitializer
-{
-public:
- // initialize the library
- wxInitializer() { m_ok = wxInitialize(); }
-
- // has the initialization been successful? (explicit test)
- bool IsOk() const { return m_ok; }
-
- // has the initialization been successful? (implicit test)
- operator bool() const { return m_ok; }
-
- // dtor only does clean up if we initialized the library properly
- ~wxInitializer() { if ( m_ok ) wxUninitialize(); }
-
-private:
- bool m_ok;
-};
-
-#endif // !wxUSE_GUI
+extern void WXDLLIMPEXP_BASE wxWakeUpIdle();
// ----------------------------------------------------------------------------
// macros for dynamic creation of the application object
// creator function. wxApp can then call this function to create a new app
// object. Convoluted, but necessary.
-class WXDLLEXPORT wxAppInitializer
+class WXDLLIMPEXP_BASE wxAppInitializer
{
public:
wxAppInitializer(wxAppInitializerFunction 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(__WXMOTIF__) || defined(__WXGTK__) || defined(__WXPM__) || defined(__WXMGL__) || defined(__WXCOCOA__)
- #define IMPLEMENT_WXWIN_MAIN \
- extern int wxEntry( int argc, char **argv ); \
- int main(int argc, char **argv) { return wxEntry(argc, argv); }
-#elif defined(__WXMAC__)
- // wxMac seems to have a specific wxEntry prototype
- #define IMPLEMENT_WXWIN_MAIN \
- extern int wxEntry( int argc, char **argv, bool enterLoop = TRUE ); \
+#define IMPLEMENT_WXWIN_MAIN_CONSOLE \
int main(int argc, char **argv) { return wxEntry(argc, argv); }
-#elif defined(__WXMSW__) && defined(WXUSINGDLL)
- // NT defines APIENTRY, 3.x not
- #if !defined(WXAPIENTRY)
- #define WXAPIENTRY WXFAR wxSTDCALL
- #endif
- #include <windows.h>
- #include "wx/msw/winundef.h"
-
- #define IMPLEMENT_WXWIN_MAIN \
- extern "C" int WXAPIENTRY WinMain(HINSTANCE hInstance,\
- HINSTANCE hPrevInstance,\
- LPSTR m_lpCmdLine, int nCmdShow)\
- {\
- return wxEntry((WXHINSTANCE) hInstance,\
- (WXHINSTANCE) hPrevInstance,\
- m_lpCmdLine, nCmdShow);\
- }
-#else
- #define IMPLEMENT_WXWIN_MAIN
-#endif
+// port-specific header could have defined it already in some special wau
+#ifndef IMPLEMENT_WXWIN_MAIN
+ #define IMPLEMENT_WXWIN_MAIN IMPLEMENT_WXWIN_MAIN_CONSOLE
+#endif // defined(IMPLEMENT_WXWIN_MAIN)
#ifdef __WXUNIVERSAL__
#include "wx/univ/theme.h"
// 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) \
- wxApp *wxCreateApp() \
- { \
- wxApp::CheckBuildOptions(wxBuildOptions()); \
- return new appname; \
- } \
- wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
+#define IMPLEMENT_APP_NO_MAIN(appname) \
+ wxAppConsole *wxCreateApp() \
+ { \
+ wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, \
+ "your program"); \
+ return new appname; \
+ } \
+ wxAppInitializer \
+ wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
appname& wxGetApp() { return *(appname *)wxTheApp; }
// Same as IMPLEMENT_APP() normally but doesn't include themes support in
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();
-#endif
- // _WX_APP_H_BASE_
+#endif // _WX_APP_H_BASE_
+
projects / wxWidgets.git / blobdiff