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c801d85f | 1 | ///////////////////////////////////////////////////////////////////////////// |
090a6d7a | 2 | // Name: wx/app.h |
094637f6 VZ |
3 | // Purpose: wxAppBase class and macros used for declaration of wxApp |
4 | // derived class in the user code | |
c801d85f KB |
5 | // Author: Julian Smart |
6 | // Modified by: | |
7 | // Created: 01/02/97 | |
8 | // RCS-ID: $Id$ | |
371a5b4e | 9 | // Copyright: (c) Julian Smart |
65571936 | 10 | // Licence: wxWindows licence |
c801d85f KB |
11 | ///////////////////////////////////////////////////////////////////////////// |
12 | ||
34138703 JS |
13 | #ifndef _WX_APP_H_BASE_ |
14 | #define _WX_APP_H_BASE_ | |
c801d85f | 15 | |
23280650 VZ |
16 | // ---------------------------------------------------------------------------- |
17 | // headers we have to include here | |
18 | // ---------------------------------------------------------------------------- | |
19 | ||
20 | #include "wx/event.h" // for the base class | |
58cc1587 | 21 | #include "wx/eventfilter.h" // (and another one) |
090a6d7a | 22 | #include "wx/build.h" |
541ea80f | 23 | #include "wx/cmdargs.h" // for wxCmdLineArgsArray used by wxApp::argv |
0fcbaf23 | 24 | #include "wx/init.h" // we must declare wxEntry() |
5ff14574 | 25 | #include "wx/intl.h" // for wxLayoutDirection |
7d9550df | 26 | #include "wx/log.h" // for wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD() |
090a6d7a | 27 | |
b5dbe15d VS |
28 | class WXDLLIMPEXP_FWD_BASE wxAppConsole; |
29 | class WXDLLIMPEXP_FWD_BASE wxAppTraits; | |
30 | class WXDLLIMPEXP_FWD_BASE wxCmdLineParser; | |
31 | class WXDLLIMPEXP_FWD_BASE wxEventLoopBase; | |
b5dbe15d | 32 | class WXDLLIMPEXP_FWD_BASE wxMessageOutput; |
a69be60b | 33 | |
4d90072c | 34 | #if wxUSE_GUI |
4ec80a59 | 35 | struct WXDLLIMPEXP_FWD_CORE wxVideoMode; |
d48b06bd | 36 | class WXDLLIMPEXP_FWD_CORE wxWindow; |
fb761cd5 | 37 | #endif |
1bf77ee5 | 38 | |
7d9550df VZ |
39 | // this macro should be used in any main() or equivalent functions defined in wx |
40 | #define wxDISABLE_DEBUG_SUPPORT() \ | |
41 | wxDISABLE_ASSERTS_IN_RELEASE_BUILD(); \ | |
42 | wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD() | |
43 | ||
53c9228e VZ |
44 | // ---------------------------------------------------------------------------- |
45 | // typedefs | |
46 | // ---------------------------------------------------------------------------- | |
47 | ||
48 | // the type of the function used to create a wxApp object on program start up | |
e8e1149b | 49 | typedef wxAppConsole* (*wxAppInitializerFunction)(); |
53c9228e | 50 | |
094637f6 VZ |
51 | // ---------------------------------------------------------------------------- |
52 | // constants | |
53 | // ---------------------------------------------------------------------------- | |
54 | ||
e2478fde VZ |
55 | enum |
56 | { | |
57 | wxPRINT_WINDOWS = 1, | |
58 | wxPRINT_POSTSCRIPT = 2 | |
59 | }; | |
094637f6 | 60 | |
3185abc2 VZ |
61 | // ---------------------------------------------------------------------------- |
62 | // global variables | |
63 | // ---------------------------------------------------------------------------- | |
64 | ||
65 | // use of this list is strongly deprecated, use wxApp ScheduleForDestruction() | |
66 | // and IsScheduledForDestruction() methods instead of this list directly, it | |
67 | // is here for compatibility purposes only | |
68 | extern WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete; | |
69 | ||
094637f6 | 70 | // ---------------------------------------------------------------------------- |
e0954e72 | 71 | // wxAppConsoleBase: wxApp for non-GUI applications |
094637f6 VZ |
72 | // ---------------------------------------------------------------------------- |
73 | ||
58cc1587 VZ |
74 | class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler, |
75 | public wxEventFilter | |
094637f6 VZ |
76 | { |
77 | public: | |
e2478fde | 78 | // ctor and dtor |
e0954e72 VZ |
79 | wxAppConsoleBase(); |
80 | virtual ~wxAppConsoleBase(); | |
e2478fde | 81 | |
1e6feb95 | 82 | |
094637f6 VZ |
83 | // the virtual functions which may/must be overridden in the derived class |
84 | // ----------------------------------------------------------------------- | |
bf188f1a | 85 | |
94826170 VZ |
86 | // This is the very first function called for a newly created wxApp object, |
87 | // it is used by the library to do the global initialization. If, for some | |
88 | // reason, you must override it (instead of just overriding OnInit(), as | |
89 | // usual, for app-specific initializations), do not forget to call the base | |
90 | // class version! | |
05e2b077 | 91 | virtual bool Initialize(int& argc, wxChar **argv); |
94826170 | 92 | |
7fbc89bb DE |
93 | // This gives wxCocoa a chance to call OnInit() with a memory pool in place |
94 | virtual bool CallOnInit() { return OnInit(); } | |
95 | ||
e2478fde VZ |
96 | // Called before OnRun(), this is a good place to do initialization -- if |
97 | // anything fails, return false from here to prevent the program from | |
98 | // continuing. The command line is normally parsed here, call the base | |
99 | // class OnInit() to do it. | |
bf188f1a | 100 | virtual bool OnInit(); |
094637f6 | 101 | |
e2478fde VZ |
102 | // This is the replacement for the normal main(): all program work should |
103 | // be done here. When OnRun() returns, the programs starts shutting down. | |
b46b1d59 | 104 | virtual int OnRun(); |
094637f6 | 105 | |
ec38d07d FM |
106 | // This is called by wxEventLoopBase::SetActive(): you should put the code |
107 | // which needs an active event loop here. | |
108 | // Note that this function is called whenever an event loop is activated; | |
109 | // you may want to use wxEventLoopBase::IsMain() to perform initialization | |
110 | // specific for the app's main event loop. | |
111 | virtual void OnEventLoopEnter(wxEventLoopBase* WXUNUSED(loop)) {} | |
112 | ||
e2478fde VZ |
113 | // This is only called if OnInit() returned true so it's a good place to do |
114 | // any cleanup matching the initializations done there. | |
7beba2fc | 115 | virtual int OnExit(); |
094637f6 | 116 | |
ec38d07d FM |
117 | // This is called by wxEventLoopBase::OnExit() for each event loop which |
118 | // is exited. | |
119 | virtual void OnEventLoopExit(wxEventLoopBase* WXUNUSED(loop)) {} | |
120 | ||
94826170 VZ |
121 | // This is the very last function called on wxApp object before it is |
122 | // destroyed. If you override it (instead of overriding OnExit() as usual) | |
123 | // do not forget to call the base class version! | |
124 | virtual void CleanUp(); | |
125 | ||
e2478fde VZ |
126 | // Called when a fatal exception occurs, this function should take care not |
127 | // to do anything which might provoke a nested exception! It may be | |
128 | // overridden if you wish to react somehow in non-default way (core dump | |
129 | // under Unix, application crash under Windows) to fatal program errors, | |
130 | // however extreme care should be taken if you don't want this function to | |
131 | // crash. | |
094637f6 VZ |
132 | virtual void OnFatalException() { } |
133 | ||
e2478fde VZ |
134 | // Called from wxExit() function, should terminate the application a.s.a.p. |
135 | virtual void Exit(); | |
b137e493 | 136 | |
094637f6 VZ |
137 | |
138 | // application info: name, description, vendor | |
139 | // ------------------------------------------- | |
140 | ||
141 | // NB: all these should be set by the application itself, there are no | |
142 | // reasonable default except for the application name which is taken to | |
143 | // be argv[0] | |
144 | ||
145 | // set/get the application name | |
f432e677 | 146 | wxString GetAppName() const; |
094637f6 VZ |
147 | void SetAppName(const wxString& name) { m_appName = name; } |
148 | ||
9cf3d218 VZ |
149 | // set/get the application display name: the display name is the name |
150 | // shown to the user in titles, reports, etc while the app name is | |
151 | // used for paths, config, and other places the user doesn't see | |
152 | // | |
f432e677 VZ |
153 | // by default the display name is the same as app name or a capitalized |
154 | // version of the program if app name was not set neither but it's | |
155 | // usually better to set it explicitly to something nicer | |
156 | wxString GetAppDisplayName() const; | |
328fafa1 | 157 | |
9cf3d218 VZ |
158 | void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; } |
159 | ||
094637f6 VZ |
160 | // set/get the app class name |
161 | wxString GetClassName() const { return m_className; } | |
162 | void SetClassName(const wxString& name) { m_className = name; } | |
163 | ||
164 | // set/get the vendor name | |
165 | const wxString& GetVendorName() const { return m_vendorName; } | |
166 | void SetVendorName(const wxString& name) { m_vendorName = name; } | |
167 | ||
180b5b48 VZ |
168 | // set/get the vendor display name: the display name is shown |
169 | // in titles/reports/dialogs to the user, while the vendor name | |
170 | // is used in some areas such as wxConfig, wxStandardPaths, etc | |
171 | const wxString& GetVendorDisplayName() const | |
172 | { | |
173 | return m_vendorDisplayName.empty() ? GetVendorName() | |
174 | : m_vendorDisplayName; | |
175 | } | |
176 | void SetVendorDisplayName(const wxString& name) | |
177 | { | |
178 | m_vendorDisplayName = name; | |
179 | } | |
180 | ||
e90c1d2a | 181 | |
bf188f1a VZ |
182 | // cmd line parsing stuff |
183 | // ---------------------- | |
184 | ||
185 | // all of these methods may be overridden in the derived class to | |
186 | // customize the command line parsing (by default only a few standard | |
187 | // options are handled) | |
188 | // | |
189 | // you also need to call wxApp::OnInit() from YourApp::OnInit() for all | |
190 | // this to work | |
191 | ||
192 | #if wxUSE_CMDLINE_PARSER | |
193 | // this one is called from OnInit() to add all supported options | |
b913d3ed VZ |
194 | // to the given parser (don't forget to call the base class version if you |
195 | // override it!) | |
bf188f1a VZ |
196 | virtual void OnInitCmdLine(wxCmdLineParser& parser); |
197 | ||
4629016d WS |
198 | // called after successfully parsing the command line, return true |
199 | // to continue and false to exit (don't forget to call the base class | |
b913d3ed | 200 | // version if you override it!) |
bf188f1a VZ |
201 | virtual bool OnCmdLineParsed(wxCmdLineParser& parser); |
202 | ||
4629016d WS |
203 | // called if "--help" option was specified, return true to continue |
204 | // and false to exit | |
bf188f1a VZ |
205 | virtual bool OnCmdLineHelp(wxCmdLineParser& parser); |
206 | ||
207 | // called if incorrect command line options were given, return | |
4629016d | 208 | // false to abort and true to continue |
bf188f1a VZ |
209 | virtual bool OnCmdLineError(wxCmdLineParser& parser); |
210 | #endif // wxUSE_CMDLINE_PARSER | |
211 | ||
e2478fde | 212 | |
094637f6 VZ |
213 | // miscellaneous customization functions |
214 | // ------------------------------------- | |
215 | ||
e2478fde VZ |
216 | // create the app traits object to which we delegate for everything which |
217 | // either should be configurable by the user (then he can change the | |
218 | // default behaviour simply by overriding CreateTraits() and returning his | |
219 | // own traits object) or which is GUI/console dependent as then wxAppTraits | |
9d55bfef | 220 | // allows us to abstract the differences behind the common facade |
e2478fde VZ |
221 | wxAppTraits *GetTraits(); |
222 | ||
96b2cbe8 VZ |
223 | // this function provides safer access to traits object than |
224 | // wxTheApp->GetTraits() during startup or termination when the global | |
225 | // application object itself may be unavailable | |
226 | // | |
227 | // of course, it still returns NULL in this case and the caller must check | |
228 | // for it | |
229 | static wxAppTraits *GetTraitsIfExists(); | |
75acb532 | 230 | |
ec38d07d FM |
231 | // returns the main event loop instance, i.e. the event loop which is started |
232 | // by OnRun() and which dispatches all events sent from the native toolkit | |
233 | // to the application (except when new event loops are temporarily set-up). | |
234 | // The returned value maybe NULL. Put initialization code which needs a | |
235 | // non-NULL main event loop into OnEventLoopEnter(). | |
236 | wxEventLoopBase* GetMainLoop() const | |
237 | { return m_mainLoop; } | |
238 | ||
239 | ||
e2478fde VZ |
240 | // event processing functions |
241 | // -------------------------- | |
094637f6 | 242 | |
58cc1587 VZ |
243 | // Implement the inherited wxEventFilter method but just return -1 from it |
244 | // to indicate that default processing should take place. | |
9154d8cf VZ |
245 | virtual int FilterEvent(wxEvent& event); |
246 | ||
dde19c21 FM |
247 | // return true if we're running event loop, i.e. if the events can |
248 | // (already) be dispatched | |
249 | static bool IsMainLoopRunning(); | |
250 | ||
883117d1 | 251 | #if wxUSE_EXCEPTIONS |
3c778901 VZ |
252 | // execute the functor to handle the given event |
253 | // | |
254 | // this is a generalization of HandleEvent() below and the base class | |
255 | // implementation of CallEventHandler() still calls HandleEvent() for | |
256 | // compatibility for functors which are just wxEventFunctions (i.e. methods | |
257 | // of wxEvtHandler) | |
258 | virtual void CallEventHandler(wxEvtHandler *handler, | |
259 | wxEventFunctor& functor, | |
260 | wxEvent& event) const; | |
261 | ||
883117d1 VZ |
262 | // call the specified handler on the given object with the given event |
263 | // | |
264 | // this method only exists to allow catching the exceptions thrown by any | |
265 | // event handler, it would lead to an extra (useless) virtual function call | |
266 | // if the exceptions were not used, so it doesn't even exist in that case | |
267 | virtual void HandleEvent(wxEvtHandler *handler, | |
268 | wxEventFunction func, | |
269 | wxEvent& event) const; | |
2dc62891 VZ |
270 | |
271 | // Called when an unhandled C++ exception occurs inside OnRun(): note that | |
1663c655 VZ |
272 | // the main event loop has already terminated by now and the program will |
273 | // exit, if you need to really handle the exceptions you need to override | |
274 | // OnExceptionInMainLoop() | |
275 | virtual void OnUnhandledException(); | |
dde19c21 FM |
276 | |
277 | // Function called if an uncaught exception is caught inside the main | |
278 | // event loop: it may return true to continue running the event loop or | |
279 | // false to stop it (in the latter case it may rethrow the exception as | |
280 | // well) | |
281 | virtual bool OnExceptionInMainLoop(); | |
282 | ||
883117d1 VZ |
283 | #endif // wxUSE_EXCEPTIONS |
284 | ||
b46b1d59 | 285 | |
8e40ed85 FM |
286 | // pending events |
287 | // -------------- | |
288 | ||
289 | // IMPORTANT: all these methods conceptually belong to wxEventLoopBase | |
290 | // but for many reasons we need to allow queuing of events | |
291 | // even when there's no event loop (e.g. in wxApp::OnInit); | |
292 | // this feature is used e.g. to queue events on secondary threads | |
293 | // or in wxPython to use wx.CallAfter before the GUI is initialized | |
294 | ||
295 | // process all events in the m_handlersWithPendingEvents list -- it is necessary | |
296 | // to call this function to process posted events. This happens during each | |
297 | // event loop iteration in GUI mode but if there is no main loop, it may be | |
298 | // also called directly. | |
e2478fde | 299 | virtual void ProcessPendingEvents(); |
8e40ed85 FM |
300 | |
301 | // check if there are pending events on global pending event list | |
b46b1d59 VZ |
302 | bool HasPendingEvents() const; |
303 | ||
8e40ed85 FM |
304 | // temporary suspends processing of the pending events |
305 | void SuspendProcessingOfPendingEvents(); | |
306 | ||
307 | // resume processing of the pending events previously stopped because of a | |
308 | // call to SuspendProcessingOfPendingEvents() | |
309 | void ResumeProcessingOfPendingEvents(); | |
310 | ||
311 | // called by ~wxEvtHandler to (eventually) remove the handler from the list of | |
312 | // the handlers with pending events | |
313 | void RemovePendingEventHandler(wxEvtHandler* toRemove); | |
314 | ||
315 | // adds an event handler to the list of the handlers with pending events | |
316 | void AppendPendingEventHandler(wxEvtHandler* toAppend); | |
317 | ||
318 | // moves the event handler from the list of the handlers with pending events | |
319 | //to the list of the handlers with _delayed_ pending events | |
320 | void DelayPendingEventHandler(wxEvtHandler* toDelay); | |
321 | ||
cae9e7b1 FM |
322 | // deletes the current pending events |
323 | void DeletePendingEvents(); | |
324 | ||
8e40ed85 | 325 | |
3185abc2 VZ |
326 | // delayed destruction |
327 | // ------------------- | |
328 | ||
329 | // If an object may have pending events for it, it shouldn't be deleted | |
330 | // immediately as this would result in a crash when trying to handle these | |
331 | // events: instead, it should be scheduled for destruction and really | |
332 | // destroyed only after processing all pending events. | |
333 | // | |
334 | // Notice that this is only possible if we have a running event loop, | |
335 | // otherwise the object is just deleted directly by ScheduleForDestruction() | |
336 | // and IsScheduledForDestruction() always returns false. | |
337 | ||
338 | // schedule the object for destruction in the near future | |
339 | void ScheduleForDestruction(wxObject *object); | |
340 | ||
341 | // return true if the object is scheduled for destruction | |
342 | bool IsScheduledForDestruction(wxObject *object) const; | |
343 | ||
344 | ||
345 | // wxEventLoop-related methods | |
346 | // --------------------------- | |
8e40ed85 | 347 | |
a758f601 VZ |
348 | // all these functions are forwarded to the corresponding methods of the |
349 | // currently active event loop -- and do nothing if there is none | |
dde19c21 FM |
350 | virtual bool Pending(); |
351 | virtual bool Dispatch(); | |
b46b1d59 | 352 | |
b46b1d59 | 353 | virtual int MainLoop(); |
b46b1d59 VZ |
354 | virtual void ExitMainLoop(); |
355 | ||
dde19c21 | 356 | bool Yield(bool onlyIfNeeded = false); |
e2478fde | 357 | |
dde19c21 | 358 | virtual void WakeUpIdle(); |
a758f601 VZ |
359 | |
360 | // this method is called by the active event loop when there are no events | |
361 | // to process | |
362 | // | |
363 | // by default it generates the idle events and if you override it in your | |
364 | // derived class you should call the base class version to ensure that idle | |
365 | // events are still sent out | |
b46b1d59 VZ |
366 | virtual bool ProcessIdle(); |
367 | ||
3185abc2 VZ |
368 | // this virtual function is overridden in GUI wxApp to always return true |
369 | // as GUI applications always have an event loop -- but console ones may | |
370 | // have it or not, so it simply returns true if already have an event loop | |
371 | // running but false otherwise | |
372 | virtual bool UsesEventLoop() const; | |
373 | ||
d48b06bd | 374 | |
a5f1fd3e VZ |
375 | // debugging support |
376 | // ----------------- | |
377 | ||
378 | // this function is called when an assert failure occurs, the base class | |
379 | // version does the normal processing (i.e. shows the usual assert failure | |
380 | // dialog box) | |
aad65f13 | 381 | // |
3ec4a23f VZ |
382 | // the arguments are the location of the failed assert (func may be empty |
383 | // if the compiler doesn't support C99 __FUNCTION__), the text of the | |
aad65f13 | 384 | // assert itself and the user-specified message |
3ec4a23f VZ |
385 | virtual void OnAssertFailure(const wxChar *file, |
386 | int line, | |
387 | const wxChar *func, | |
388 | const wxChar *cond, | |
389 | const wxChar *msg); | |
390 | ||
391 | // old version of the function without func parameter, for compatibility | |
392 | // only, override OnAssertFailure() in the new code | |
aad65f13 VZ |
393 | virtual void OnAssert(const wxChar *file, |
394 | int line, | |
395 | const wxChar *cond, | |
396 | const wxChar *msg); | |
8030d606 | 397 | |
090a6d7a | 398 | // check that the wxBuildOptions object (constructed in the application |
e4431849 | 399 | // itself, usually the one from wxIMPLEMENT_APP() macro) matches the build |
090a6d7a | 400 | // options of the library and abort if it doesn't |
2a7c7605 VS |
401 | static bool CheckBuildOptions(const char *optionsSignature, |
402 | const char *componentName); | |
73deed44 | 403 | |
094637f6 VZ |
404 | // implementation only from now on |
405 | // ------------------------------- | |
406 | ||
407 | // helpers for dynamic wxApp construction | |
408 | static void SetInitializerFunction(wxAppInitializerFunction fn) | |
e2478fde | 409 | { ms_appInitFn = fn; } |
094637f6 | 410 | static wxAppInitializerFunction GetInitializerFunction() |
e2478fde | 411 | { return ms_appInitFn; } |
094637f6 | 412 | |
a80e5f9e VZ |
413 | // accessors for ms_appInstance field (external code might wish to modify |
414 | // it, this is why we provide a setter here as well, but you should really | |
415 | // know what you're doing if you call it), wxTheApp is usually used instead | |
416 | // of GetInstance() | |
417 | static wxAppConsole *GetInstance() { return ms_appInstance; } | |
418 | static void SetInstance(wxAppConsole *app) { ms_appInstance = app; } | |
419 | ||
72cdf4c9 | 420 | |
e2478fde | 421 | // command line arguments (public for backwards compatibility) |
541ea80f VZ |
422 | int argc; |
423 | ||
424 | // this object is implicitly convertible to either "char**" (traditional | |
425 | // type of argv parameter of main()) or to "wchar_t **" (for compatibility | |
426 | // with Unicode build in previous wx versions and because the command line | |
427 | // can, in pr | |
428 | #if wxUSE_UNICODE | |
429 | wxCmdLineArgsArray argv; | |
430 | #else | |
431 | char **argv; | |
432 | #endif | |
094637f6 | 433 | |
094637f6 | 434 | protected: |
3185abc2 VZ |
435 | // delete all objects in wxPendingDelete list |
436 | // | |
437 | // called from ProcessPendingEvents() | |
438 | void DeletePendingObjects(); | |
439 | ||
e2478fde VZ |
440 | // the function which creates the traits object when GetTraits() needs it |
441 | // for the first time | |
442 | virtual wxAppTraits *CreateTraits(); | |
443 | ||
094637f6 | 444 | // function used for dynamic wxApp creation |
e2478fde | 445 | static wxAppInitializerFunction ms_appInitFn; |
094637f6 | 446 | |
a80e5f9e VZ |
447 | // the one and only global application object |
448 | static wxAppConsole *ms_appInstance; | |
449 | ||
b46b1d59 VZ |
450 | // create main loop from AppTraits or return NULL if |
451 | // there is no main loop implementation | |
2ddff00c | 452 | wxEventLoopBase *CreateMainLoop(); |
7cafd224 | 453 | |
094637f6 | 454 | // application info (must be set from the user code) |
180b5b48 VZ |
455 | wxString m_vendorName, // vendor name ("acme") |
456 | m_vendorDisplayName, // vendor display name (e.g. "ACME Inc") | |
9cf3d218 VZ |
457 | m_appName, // app name ("myapp") |
458 | m_appDisplayName, // app display name ("My Application") | |
459 | m_className; // class name | |
a69be60b | 460 | |
e2478fde VZ |
461 | // the class defining the application behaviour, NULL initially and created |
462 | // by GetTraits() when first needed | |
463 | wxAppTraits *m_traits; | |
464 | ||
b46b1d59 VZ |
465 | // the main event loop of the application (may be NULL if the loop hasn't |
466 | // been started yet or has already terminated) | |
2ddff00c | 467 | wxEventLoopBase *m_mainLoop; |
e2478fde | 468 | |
cae9e7b1 FM |
469 | |
470 | // pending events management vars: | |
471 | ||
8e40ed85 FM |
472 | // the array of the handlers with pending events which needs to be processed |
473 | // inside ProcessPendingEvents() | |
474 | wxEvtHandlerArray m_handlersWithPendingEvents; | |
475 | ||
cae9e7b1 FM |
476 | // helper array used by ProcessPendingEvents() to store the event handlers |
477 | // which have pending events but of these events none can be processed right now | |
478 | // (because of a call to wxEventLoop::YieldFor() which asked to selectively process | |
479 | // pending events) | |
8e40ed85 FM |
480 | wxEvtHandlerArray m_handlersWithPendingDelayedEvents; |
481 | ||
482 | #if wxUSE_THREADS | |
483 | // this critical section protects both the lists above | |
484 | wxCriticalSection m_handlersWithPendingEventsLocker; | |
485 | #endif | |
486 | ||
cae9e7b1 FM |
487 | // flag modified by Suspend/ResumeProcessingOfPendingEvents() |
488 | bool m_bDoPendingEventProcessing; | |
489 | ||
e799e8d7 | 490 | friend class WXDLLIMPEXP_FWD_BASE wxEvtHandler; |
d48b06bd | 491 | |
e2478fde VZ |
492 | // the application object is a singleton anyhow, there is no sense in |
493 | // copying it | |
c0c133e1 | 494 | wxDECLARE_NO_COPY_CLASS(wxAppConsoleBase); |
e2478fde VZ |
495 | }; |
496 | ||
715e4f7e | 497 | #if defined(__UNIX__) && !defined(__CYGWIN__) |
e0954e72 VZ |
498 | #include "wx/unix/app.h" |
499 | #else | |
4c2a8d89 VZ |
500 | // this has to be a class and not a typedef as we forward declare it |
501 | class wxAppConsole : public wxAppConsoleBase { }; | |
e0954e72 VZ |
502 | #endif |
503 | ||
e2478fde VZ |
504 | // ---------------------------------------------------------------------------- |
505 | // wxAppBase: the common part of wxApp implementations for all platforms | |
506 | // ---------------------------------------------------------------------------- | |
507 | ||
1e6feb95 | 508 | #if wxUSE_GUI |
e2478fde | 509 | |
bddd7a8d | 510 | class WXDLLIMPEXP_CORE wxAppBase : public wxAppConsole |
e2478fde VZ |
511 | { |
512 | public: | |
513 | wxAppBase(); | |
514 | virtual ~wxAppBase(); | |
515 | ||
516 | // the virtual functions which may/must be overridden in the derived class | |
517 | // ----------------------------------------------------------------------- | |
518 | ||
94826170 VZ |
519 | // very first initialization function |
520 | // | |
521 | // Override: very rarely | |
05e2b077 | 522 | virtual bool Initialize(int& argc, wxChar **argv); |
94826170 | 523 | |
e2478fde VZ |
524 | // a platform-dependent version of OnInit(): the code here is likely to |
525 | // depend on the toolkit. default version does nothing. | |
526 | // | |
527 | // Override: rarely. | |
528 | virtual bool OnInitGui(); | |
529 | ||
530 | // called to start program execution - the default version just enters | |
531 | // the main GUI loop in which events are received and processed until | |
532 | // the last window is not deleted (if GetExitOnFrameDelete) or | |
533 | // ExitMainLoop() is called. In console mode programs, the execution | |
534 | // of the program really starts here | |
535 | // | |
536 | // Override: rarely in GUI applications, always in console ones. | |
537 | virtual int OnRun(); | |
538 | ||
b913d3ed VZ |
539 | // a matching function for OnInit() |
540 | virtual int OnExit(); | |
541 | ||
94826170 VZ |
542 | // very last clean up function |
543 | // | |
544 | // Override: very rarely | |
545 | virtual void CleanUp(); | |
e2478fde VZ |
546 | |
547 | ||
548 | // the worker functions - usually not used directly by the user code | |
549 | // ----------------------------------------------------------------- | |
550 | ||
d48b06bd FM |
551 | // safer alternatives to Yield(), using wxWindowDisabler |
552 | virtual bool SafeYield(wxWindow *win, bool onlyIfNeeded); | |
553 | virtual bool SafeYieldFor(wxWindow *win, long eventsToProcess); | |
e2478fde VZ |
554 | |
555 | // this virtual function is called in the GUI mode when the application | |
556 | // becomes idle and normally just sends wxIdleEvent to all interested | |
557 | // parties | |
558 | // | |
4629016d | 559 | // it should return true if more idle events are needed, false if not |
1bf77ee5 | 560 | virtual bool ProcessIdle(); |
e39af974 | 561 | |
3185abc2 VZ |
562 | // override base class version: GUI apps always use an event loop |
563 | virtual bool UsesEventLoop() const { return true; } | |
564 | ||
2dc62891 | 565 | |
e2478fde VZ |
566 | // top level window functions |
567 | // -------------------------- | |
568 | ||
4629016d | 569 | // return true if our app has focus |
e2478fde VZ |
570 | virtual bool IsActive() const { return m_isActive; } |
571 | ||
572 | // set the "main" top level window | |
573 | void SetTopWindow(wxWindow *win) { m_topWindow = win; } | |
574 | ||
575 | // return the "main" top level window (if it hadn't been set previously | |
576 | // with SetTopWindow(), will return just some top level window and, if | |
577 | // there are none, will return NULL) | |
5ff14574 | 578 | virtual wxWindow *GetTopWindow() const; |
e2478fde VZ |
579 | |
580 | // control the exit behaviour: by default, the program will exit the | |
581 | // main loop (and so, usually, terminate) when the last top-level | |
582 | // program window is deleted. Beware that if you disable this behaviour | |
4629016d | 583 | // (with SetExitOnFrameDelete(false)), you'll have to call |
e2478fde VZ |
584 | // ExitMainLoop() explicitly from somewhere. |
585 | void SetExitOnFrameDelete(bool flag) | |
586 | { m_exitOnFrameDelete = flag ? Yes : No; } | |
587 | bool GetExitOnFrameDelete() const | |
588 | { return m_exitOnFrameDelete == Yes; } | |
589 | ||
590 | ||
591 | // display mode, visual, printing mode, ... | |
592 | // ------------------------------------------------------------------------ | |
593 | ||
594 | // Get display mode that is used use. This is only used in framebuffer | |
0e1f8ea4 | 595 | // wxWin ports such as wxDFB. |
5ff14574 | 596 | virtual wxVideoMode GetDisplayMode() const; |
e2478fde | 597 | // Set display mode to use. This is only used in framebuffer wxWin |
0e1f8ea4 | 598 | // ports such as wxDFB. This method should be called from |
e2478fde | 599 | // wxApp::OnInitGui |
4629016d | 600 | virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; } |
e2478fde VZ |
601 | |
602 | // set use of best visual flag (see below) | |
9cf3d218 | 603 | void SetUseBestVisual( bool flag, bool forceTrueColour = false ) |
515a31bf | 604 | { m_useBestVisual = flag; m_forceTrueColour = forceTrueColour; } |
e2478fde VZ |
605 | bool GetUseBestVisual() const { return m_useBestVisual; } |
606 | ||
607 | // set/get printing mode: see wxPRINT_XXX constants. | |
608 | // | |
609 | // default behaviour is the normal one for Unix: always use PostScript | |
610 | // printing. | |
611 | virtual void SetPrintMode(int WXUNUSED(mode)) { } | |
612 | int GetPrintMode() const { return wxPRINT_POSTSCRIPT; } | |
613 | ||
475a93b7 VZ |
614 | // Return the layout direction for the current locale or wxLayout_Default |
615 | // if it's unknown | |
616 | virtual wxLayoutDirection GetLayoutDirection() const; | |
617 | ||
c50c6fb2 VZ |
618 | // Change the theme used by the application, return true on success. |
619 | virtual bool SetNativeTheme(const wxString& WXUNUSED(theme)) { return false; } | |
620 | ||
e2478fde | 621 | |
b913d3ed VZ |
622 | // command line parsing (GUI-specific) |
623 | // ------------------------------------------------------------------------ | |
624 | ||
8030d606 | 625 | #if wxUSE_CMDLINE_PARSER |
b913d3ed VZ |
626 | virtual bool OnCmdLineParsed(wxCmdLineParser& parser); |
627 | virtual void OnInitCmdLine(wxCmdLineParser& parser); | |
8030d606 | 628 | #endif |
b913d3ed | 629 | |
e2478fde VZ |
630 | // miscellaneous other stuff |
631 | // ------------------------------------------------------------------------ | |
632 | ||
633 | // called by toolkit-specific code to set the app status: active (we have | |
634 | // focus) or not and also the last window which had focus before we were | |
635 | // deactivated | |
636 | virtual void SetActive(bool isActive, wxWindow *lastFocus); | |
637 | ||
40ff126a | 638 | #if WXWIN_COMPATIBILITY_2_6 |
dd435a79 VZ |
639 | // OBSOLETE: don't use, always returns true |
640 | // | |
641 | // returns true if the program is successfully initialized | |
40ff126a WS |
642 | wxDEPRECATED( bool Initialized() ); |
643 | #endif // WXWIN_COMPATIBILITY_2_6 | |
dd435a79 | 644 | |
e2478fde VZ |
645 | protected: |
646 | // override base class method to use GUI traits | |
647 | virtual wxAppTraits *CreateTraits(); | |
648 | ||
649 | ||
650 | // the main top level window (may be NULL) | |
1e6feb95 VZ |
651 | wxWindow *m_topWindow; |
652 | ||
1cbee0b4 VZ |
653 | // if Yes, exit the main loop when the last top level window is deleted, if |
654 | // No don't do it and if Later -- only do it once we reach our OnRun() | |
655 | // | |
656 | // the explanation for using this strange scheme is given in appcmn.cpp | |
657 | enum | |
658 | { | |
659 | Later = -1, | |
660 | No, | |
661 | Yes | |
662 | } m_exitOnFrameDelete; | |
1e6feb95 | 663 | |
90e572f1 | 664 | // true if the app wants to use the best visual on systems where |
8480b297 RR |
665 | // more than one are available (Sun, SGI, XFree86 4.0 ?) |
666 | bool m_useBestVisual; | |
515a31bf RR |
667 | // force TrueColour just in case "best" isn't TrueColour |
668 | bool m_forceTrueColour; | |
094637f6 | 669 | |
90e572f1 | 670 | // does any of our windows have focus? |
1e6feb95 | 671 | bool m_isActive; |
e2478fde | 672 | |
c0c133e1 | 673 | wxDECLARE_NO_COPY_CLASS(wxAppBase); |
094637f6 VZ |
674 | }; |
675 | ||
40ff126a WS |
676 | #if WXWIN_COMPATIBILITY_2_6 |
677 | inline bool wxAppBase::Initialized() { return true; } | |
678 | #endif // WXWIN_COMPATIBILITY_2_6 | |
679 | ||
094637f6 VZ |
680 | // ---------------------------------------------------------------------------- |
681 | // now include the declaration of the real class | |
682 | // ---------------------------------------------------------------------------- | |
683 | ||
bd362275 | 684 | #if defined(__WXMSW__) |
e0954e72 VZ |
685 | #include "wx/msw/app.h" |
686 | #elif defined(__WXMOTIF__) | |
687 | #include "wx/motif/app.h" | |
e0954e72 VZ |
688 | #elif defined(__WXDFB__) |
689 | #include "wx/dfb/app.h" | |
690 | #elif defined(__WXGTK20__) | |
691 | #include "wx/gtk/app.h" | |
692 | #elif defined(__WXGTK__) | |
693 | #include "wx/gtk1/app.h" | |
694 | #elif defined(__WXX11__) | |
695 | #include "wx/x11/app.h" | |
696 | #elif defined(__WXMAC__) | |
ef0e9220 | 697 | #include "wx/osx/app.h" |
e0954e72 VZ |
698 | #elif defined(__WXCOCOA__) |
699 | #include "wx/cocoa/app.h" | |
700 | #elif defined(__WXPM__) | |
701 | #include "wx/os2/app.h" | |
702 | #endif | |
703 | ||
e90c1d2a | 704 | #else // !GUI |
e0954e72 VZ |
705 | |
706 | // wxApp is defined in core and we cannot define another one in wxBase, | |
707 | // so use the preprocessor to allow using wxApp in console programs too | |
708 | #define wxApp wxAppConsole | |
709 | ||
e90c1d2a | 710 | #endif // GUI/!GUI |
c801d85f | 711 | |
094637f6 | 712 | // ---------------------------------------------------------------------------- |
ee31c392 VZ |
713 | // the global data |
714 | // ---------------------------------------------------------------------------- | |
715 | ||
7cafd224 VZ |
716 | // for compatibility, we define this macro to access the global application |
717 | // object of type wxApp | |
718 | // | |
719 | // note that instead of using of wxTheApp in application code you should | |
e4431849 | 720 | // consider using wxDECLARE_APP() after which you may call wxGetApp() which will |
7cafd224 VZ |
721 | // return the object of the correct type (i.e. MyApp and not wxApp) |
722 | // | |
723 | // the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in | |
724 | // console mode it does nothing at all | |
5c33522f | 725 | #define wxTheApp static_cast<wxApp*>(wxApp::GetInstance()) |
ee31c392 VZ |
726 | |
727 | // ---------------------------------------------------------------------------- | |
728 | // global functions | |
729 | // ---------------------------------------------------------------------------- | |
730 | ||
e90c1d2a VZ |
731 | // event loop related functions only work in GUI programs |
732 | // ------------------------------------------------------ | |
733 | ||
ee31c392 | 734 | // Force an exit from main loop |
38281826 | 735 | WXDLLIMPEXP_BASE void wxExit(); |
ee31c392 | 736 | |
d48b06bd | 737 | // avoid redeclaring this function here if it had been already declared by |
a131b460 VZ |
738 | // wx/utils.h, this results in warnings from g++ with -Wredundant-decls |
739 | #ifndef wx_YIELD_DECLARED | |
740 | #define wx_YIELD_DECLARED | |
741 | ||
ee31c392 | 742 | // Yield to other apps/messages |
38281826 | 743 | WXDLLIMPEXP_CORE bool wxYield(); |
e90c1d2a | 744 | |
a131b460 VZ |
745 | #endif // wx_YIELD_DECLARED |
746 | ||
bf9e3e73 | 747 | // Yield to other apps/messages |
38281826 | 748 | WXDLLIMPEXP_BASE void wxWakeUpIdle(); |
bf9e3e73 | 749 | |
ee31c392 | 750 | // ---------------------------------------------------------------------------- |
094637f6 VZ |
751 | // macros for dynamic creation of the application object |
752 | // ---------------------------------------------------------------------------- | |
753 | ||
754 | // Having a global instance of this class allows wxApp to be aware of the app | |
755 | // creator function. wxApp can then call this function to create a new app | |
756 | // object. Convoluted, but necessary. | |
c801d85f | 757 | |
bddd7a8d | 758 | class WXDLLIMPEXP_BASE wxAppInitializer |
c801d85f KB |
759 | { |
760 | public: | |
094637f6 VZ |
761 | wxAppInitializer(wxAppInitializerFunction fn) |
762 | { wxApp::SetInitializerFunction(fn); } | |
c801d85f KB |
763 | }; |
764 | ||
e4431849 | 765 | // the code below defines a wxIMPLEMENT_WXWIN_MAIN macro which you can use if |
956495ca | 766 | // your compiler really, really wants main() to be in your main program (e.g. |
e4431849 | 767 | // hello.cpp). Now wxIMPLEMENT_APP should add this code if required. |
26a87b69 | 768 | |
e4431849 | 769 | #define wxIMPLEMENT_WXWIN_MAIN_CONSOLE \ |
7d9550df VZ |
770 | int main(int argc, char **argv) \ |
771 | { \ | |
772 | wxDISABLE_DEBUG_SUPPORT(); \ | |
773 | \ | |
774 | return wxEntry(argc, argv); \ | |
775 | } | |
80b2db4e | 776 | |
90e572f1 | 777 | // port-specific header could have defined it already in some special way |
e4431849 FM |
778 | #ifndef wxIMPLEMENT_WXWIN_MAIN |
779 | #define wxIMPLEMENT_WXWIN_MAIN wxIMPLEMENT_WXWIN_MAIN_CONSOLE | |
780 | #endif // defined(wxIMPLEMENT_WXWIN_MAIN) | |
26a87b69 | 781 | |
24e78d27 VZ |
782 | #ifdef __WXUNIVERSAL__ |
783 | #include "wx/univ/theme.h" | |
784 | ||
ee92941a | 785 | #ifdef wxUNIV_DEFAULT_THEME |
e4431849 | 786 | #define wxIMPLEMENT_WX_THEME_SUPPORT \ |
ee92941a VS |
787 | WX_USE_THEME(wxUNIV_DEFAULT_THEME); |
788 | #else | |
e4431849 | 789 | #define wxIMPLEMENT_WX_THEME_SUPPORT |
ee92941a | 790 | #endif |
24e78d27 | 791 | #else |
e4431849 | 792 | #define wxIMPLEMENT_WX_THEME_SUPPORT |
24e78d27 | 793 | #endif |
c801d85f | 794 | |
c661ecca RR |
795 | // Use this macro if you want to define your own main() or WinMain() function |
796 | // and call wxEntry() from there. | |
e4431849 | 797 | #define wxIMPLEMENT_APP_NO_MAIN(appname) \ |
458f68d0 | 798 | appname& wxGetApp() { return *static_cast<appname*>(wxApp::GetInstance()); } \ |
e8e1149b | 799 | wxAppConsole *wxCreateApp() \ |
94826170 | 800 | { \ |
2a7c7605 | 801 | wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, \ |
82c75aea | 802 | "your program"); \ |
94826170 VZ |
803 | return new appname; \ |
804 | } \ | |
805 | wxAppInitializer \ | |
458f68d0 | 806 | wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp) |
c661ecca | 807 | |
e4431849 | 808 | // Same as wxIMPLEMENT_APP() normally but doesn't include themes support in |
24e78d27 | 809 | // wxUniversal builds |
e4431849 FM |
810 | #define wxIMPLEMENT_APP_NO_THEMES(appname) \ |
811 | wxIMPLEMENT_WXWIN_MAIN \ | |
812 | wxIMPLEMENT_APP_NO_MAIN(appname) | |
24e78d27 VZ |
813 | |
814 | // Use this macro exactly once, the argument is the name of the wxApp-derived | |
815 | // class which is the class of your application. | |
e4431849 FM |
816 | #define wxIMPLEMENT_APP(appname) \ |
817 | wxIMPLEMENT_WX_THEME_SUPPORT \ | |
818 | wxIMPLEMENT_APP_NO_THEMES(appname) | |
24e78d27 | 819 | |
80b2db4e | 820 | // Same as IMPLEMENT_APP(), but for console applications. |
e4431849 FM |
821 | #define wxIMPLEMENT_APP_CONSOLE(appname) \ |
822 | wxIMPLEMENT_WXWIN_MAIN_CONSOLE \ | |
823 | wxIMPLEMENT_APP_NO_MAIN(appname) | |
80b2db4e | 824 | |
24e78d27 VZ |
825 | // this macro can be used multiple times and just allows you to use wxGetApp() |
826 | // function | |
e4431849 FM |
827 | #define wxDECLARE_APP(appname) \ |
828 | extern appname& wxGetApp() | |
c801d85f | 829 | |
17a1ebd1 | 830 | |
e4431849 | 831 | // declare the stuff defined by wxIMPLEMENT_APP() macro, it's not really needed |
17a1ebd1 VZ |
832 | // anywhere else but at the very least it suppresses icc warnings about |
833 | // defining extern symbols without prior declaration, and it shouldn't do any | |
834 | // harm | |
835 | extern wxAppConsole *wxCreateApp(); | |
836 | extern wxAppInitializer wxTheAppInitializer; | |
837 | ||
e4431849 FM |
838 | // ---------------------------------------------------------------------------- |
839 | // Compatibility macro aliases | |
840 | // ---------------------------------------------------------------------------- | |
841 | ||
842 | // deprecated variants _not_ requiring a semicolon after them | |
843 | // (note that also some wx-prefixed macro do _not_ require a semicolon because | |
844 | // it's not always possible to force the compire to require it) | |
845 | ||
846 | #define IMPLEMENT_WXWIN_MAIN_CONSOLE wxIMPLEMENT_WXWIN_MAIN_CONSOLE | |
847 | #define IMPLEMENT_WXWIN_MAIN wxIMPLEMENT_WXWIN_MAIN | |
848 | #define IMPLEMENT_WX_THEME_SUPPORT wxIMPLEMENT_WX_THEME_SUPPORT | |
849 | #define IMPLEMENT_APP_NO_MAIN(app) wxIMPLEMENT_APP_NO_MAIN(app); | |
850 | #define IMPLEMENT_APP_NO_THEMES(app) wxIMPLEMENT_APP_NO_THEMES(app); | |
851 | #define IMPLEMENT_APP(app) wxIMPLEMENT_APP(app); | |
852 | #define IMPLEMENT_APP_CONSOLE(app) wxIMPLEMENT_APP_CONSOLE(app); | |
853 | #define DECLARE_APP(app) wxDECLARE_APP(app); | |
854 | ||
94826170 | 855 | #endif // _WX_APP_H_BASE_ |