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c801d85f 1/////////////////////////////////////////////////////////////////////////////
090a6d7a 2// Name: wx/app.h
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3// Purpose: wxAppBase class and macros used for declaration of wxApp
4// derived class in the user code
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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
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11/////////////////////////////////////////////////////////////////////////////
12
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13#ifndef _WX_APP_H_BASE_
14#define _WX_APP_H_BASE_
c801d85f 15
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16// ----------------------------------------------------------------------------
17// headers we have to include here
18// ----------------------------------------------------------------------------
19
20#include "wx/event.h" // for the base class
090a6d7a 21#include "wx/build.h"
541ea80f 22#include "wx/cmdargs.h" // for wxCmdLineArgsArray used by wxApp::argv
0fcbaf23 23#include "wx/init.h" // we must declare wxEntry()
5ff14574 24#include "wx/intl.h" // for wxLayoutDirection
090a6d7a 25
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26class WXDLLIMPEXP_FWD_BASE wxAppConsole;
27class WXDLLIMPEXP_FWD_BASE wxAppTraits;
28class WXDLLIMPEXP_FWD_BASE wxCmdLineParser;
29class WXDLLIMPEXP_FWD_BASE wxEventLoopBase;
30class WXDLLIMPEXP_FWD_BASE wxLog;
31class WXDLLIMPEXP_FWD_BASE wxMessageOutput;
a69be60b 32
4d90072c 33#if wxUSE_GUI
4ec80a59 34 struct WXDLLIMPEXP_FWD_CORE wxVideoMode;
fb761cd5 35#endif
1bf77ee5 36
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37// ----------------------------------------------------------------------------
38// typedefs
39// ----------------------------------------------------------------------------
40
41// the type of the function used to create a wxApp object on program start up
e8e1149b 42typedef wxAppConsole* (*wxAppInitializerFunction)();
53c9228e 43
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44// ----------------------------------------------------------------------------
45// constants
46// ----------------------------------------------------------------------------
47
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48enum
49{
50 wxPRINT_WINDOWS = 1,
51 wxPRINT_POSTSCRIPT = 2
52};
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53
54// ----------------------------------------------------------------------------
e0954e72 55// wxAppConsoleBase: wxApp for non-GUI applications
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56// ----------------------------------------------------------------------------
57
e0954e72 58class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler
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59{
60public:
e2478fde 61 // ctor and dtor
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62 wxAppConsoleBase();
63 virtual ~wxAppConsoleBase();
e2478fde 64
1e6feb95 65
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66 // the virtual functions which may/must be overridden in the derived class
67 // -----------------------------------------------------------------------
bf188f1a 68
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69 // This is the very first function called for a newly created wxApp object,
70 // it is used by the library to do the global initialization. If, for some
71 // reason, you must override it (instead of just overriding OnInit(), as
72 // usual, for app-specific initializations), do not forget to call the base
73 // class version!
05e2b077 74 virtual bool Initialize(int& argc, wxChar **argv);
94826170 75
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76 // This gives wxCocoa a chance to call OnInit() with a memory pool in place
77 virtual bool CallOnInit() { return OnInit(); }
78
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79 // Called before OnRun(), this is a good place to do initialization -- if
80 // anything fails, return false from here to prevent the program from
81 // continuing. The command line is normally parsed here, call the base
82 // class OnInit() to do it.
bf188f1a 83 virtual bool OnInit();
094637f6 84
87b6002d 85 // this is here only temporary hopefully (FIXME)
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86 virtual bool OnInitGui() { return true; }
87
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88 // This is the replacement for the normal main(): all program work should
89 // be done here. When OnRun() returns, the programs starts shutting down.
b46b1d59 90 virtual int OnRun();
094637f6 91
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92 // This is only called if OnInit() returned true so it's a good place to do
93 // any cleanup matching the initializations done there.
7beba2fc 94 virtual int OnExit();
094637f6 95
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96 // This is the very last function called on wxApp object before it is
97 // destroyed. If you override it (instead of overriding OnExit() as usual)
98 // do not forget to call the base class version!
99 virtual void CleanUp();
100
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101 // Called when a fatal exception occurs, this function should take care not
102 // to do anything which might provoke a nested exception! It may be
103 // overridden if you wish to react somehow in non-default way (core dump
104 // under Unix, application crash under Windows) to fatal program errors,
105 // however extreme care should be taken if you don't want this function to
106 // crash.
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107 virtual void OnFatalException() { }
108
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109 // Called from wxExit() function, should terminate the application a.s.a.p.
110 virtual void Exit();
b137e493 111
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112
113 // application info: name, description, vendor
114 // -------------------------------------------
115
116 // NB: all these should be set by the application itself, there are no
117 // reasonable default except for the application name which is taken to
118 // be argv[0]
119
120 // set/get the application name
121 wxString GetAppName() const
122 {
e2478fde 123 return m_appName.empty() ? m_className : m_appName;
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124 }
125 void SetAppName(const wxString& name) { m_appName = name; }
126
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127 // set/get the application display name: the display name is the name
128 // shown to the user in titles, reports, etc while the app name is
129 // used for paths, config, and other places the user doesn't see
130 //
131 // so the app name could be myapp while display name could be "My App"
132 wxString GetAppDisplayName() const
133 {
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134 return m_appDisplayName.empty() ? GetAppName().Capitalize()
135 : m_appDisplayName;
9cf3d218 136 }
328fafa1 137
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138 void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; }
139
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140 // set/get the app class name
141 wxString GetClassName() const { return m_className; }
142 void SetClassName(const wxString& name) { m_className = name; }
143
144 // set/get the vendor name
145 const wxString& GetVendorName() const { return m_vendorName; }
146 void SetVendorName(const wxString& name) { m_vendorName = name; }
147
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148 // set/get the vendor display name: the display name is shown
149 // in titles/reports/dialogs to the user, while the vendor name
150 // is used in some areas such as wxConfig, wxStandardPaths, etc
151 const wxString& GetVendorDisplayName() const
152 {
153 return m_vendorDisplayName.empty() ? GetVendorName()
154 : m_vendorDisplayName;
155 }
156 void SetVendorDisplayName(const wxString& name)
157 {
158 m_vendorDisplayName = name;
159 }
160
e90c1d2a 161
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162 // cmd line parsing stuff
163 // ----------------------
164
165 // all of these methods may be overridden in the derived class to
166 // customize the command line parsing (by default only a few standard
167 // options are handled)
168 //
169 // you also need to call wxApp::OnInit() from YourApp::OnInit() for all
170 // this to work
171
172#if wxUSE_CMDLINE_PARSER
173 // this one is called from OnInit() to add all supported options
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174 // to the given parser (don't forget to call the base class version if you
175 // override it!)
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176 virtual void OnInitCmdLine(wxCmdLineParser& parser);
177
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178 // called after successfully parsing the command line, return true
179 // to continue and false to exit (don't forget to call the base class
b913d3ed 180 // version if you override it!)
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181 virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
182
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183 // called if "--help" option was specified, return true to continue
184 // and false to exit
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185 virtual bool OnCmdLineHelp(wxCmdLineParser& parser);
186
187 // called if incorrect command line options were given, return
4629016d 188 // false to abort and true to continue
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189 virtual bool OnCmdLineError(wxCmdLineParser& parser);
190#endif // wxUSE_CMDLINE_PARSER
191
e2478fde 192
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193 // miscellaneous customization functions
194 // -------------------------------------
195
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196 // create the app traits object to which we delegate for everything which
197 // either should be configurable by the user (then he can change the
198 // default behaviour simply by overriding CreateTraits() and returning his
199 // own traits object) or which is GUI/console dependent as then wxAppTraits
9d55bfef 200 // allows us to abstract the differences behind the common facade
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201 wxAppTraits *GetTraits();
202
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203 // this function provides safer access to traits object than
204 // wxTheApp->GetTraits() during startup or termination when the global
205 // application object itself may be unavailable
206 //
207 // of course, it still returns NULL in this case and the caller must check
208 // for it
209 static wxAppTraits *GetTraitsIfExists();
75acb532 210
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211 // event processing functions
212 // --------------------------
094637f6 213
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214 // this method allows to filter all the events processed by the program, so
215 // you should try to return quickly from it to avoid slowing down the
216 // program to the crawl
217 //
218 // return value should be -1 to continue with the normal event processing,
219 // or TRUE or FALSE to stop further processing and pretend that the event
220 // had been already processed or won't be processed at all, respectively
221 virtual int FilterEvent(wxEvent& event);
222
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223#if wxUSE_EXCEPTIONS
224 // call the specified handler on the given object with the given event
225 //
226 // this method only exists to allow catching the exceptions thrown by any
227 // event handler, it would lead to an extra (useless) virtual function call
228 // if the exceptions were not used, so it doesn't even exist in that case
229 virtual void HandleEvent(wxEvtHandler *handler,
230 wxEventFunction func,
231 wxEvent& event) const;
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232
233 // Called when an unhandled C++ exception occurs inside OnRun(): note that
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234 // the main event loop has already terminated by now and the program will
235 // exit, if you need to really handle the exceptions you need to override
236 // OnExceptionInMainLoop()
237 virtual void OnUnhandledException();
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238#endif // wxUSE_EXCEPTIONS
239
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240 // event processing functions
241 // --------------------------
242
243 // return true if we're running event loop, i.e. if the events can
244 // (already) be dispatched
e0954e72 245 static bool IsMainLoopRunning();
b46b1d59 246
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247 // process all events in the wxPendingEvents list -- it is necessary to
248 // call this function to process posted events. This happens during each
249 // event loop iteration in GUI mode but if there is no main loop, it may be
250 // also called directly.
251 virtual void ProcessPendingEvents();
252
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253 // check if there are pending events on global pending event list
254 bool HasPendingEvents() const;
255
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256 // doesn't do anything in this class, just a hook for GUI wxApp
257 virtual bool Yield(bool WXUNUSED(onlyIfNeeded) = false) { return true; }
258
259 // make sure that idle events are sent again
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260 virtual void WakeUpIdle();
261
262 // execute the main GUI loop, the function returns when the loop ends
263 virtual int MainLoop();
264
265 // exit the main GUI loop during the next iteration (i.e. it does not
266 // stop the program immediately!)
267 virtual void ExitMainLoop();
268
269 // returns true if there are unprocessed events in the event queue
270 virtual bool Pending();
e2478fde 271
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272 // process the first event in the event queue (blocks until an event
273 // appears if there are none currently, use Pending() if this is not
274 // wanted), returns false if the event loop should stop and true
275 // otherwise
276 virtual bool Dispatch();
9b0db452 277
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278 // this virtual function is called when the application
279 // becomes idle and normally just sends wxIdleEvent to all interested
280 // parties
281 //
282 // it should return true if more idle events are needed, false if not
283 virtual bool ProcessIdle();
284
285#if wxUSE_EXCEPTIONS
286 // Function called if an uncaught exception is caught inside the main
287 // event loop: it may return true to continue running the event loop or
288 // false to stop it (in the latter case it may rethrow the exception as
289 // well)
290 virtual bool OnExceptionInMainLoop();
291#endif // wxUSE_EXCEPTIONS
e2478fde 292
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293 // debugging support
294 // -----------------
295
3ec4a23f 296#ifdef __WXDEBUG__
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297 // this function is called when an assert failure occurs, the base class
298 // version does the normal processing (i.e. shows the usual assert failure
299 // dialog box)
aad65f13 300 //
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301 // the arguments are the location of the failed assert (func may be empty
302 // if the compiler doesn't support C99 __FUNCTION__), the text of the
aad65f13 303 // assert itself and the user-specified message
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304 virtual void OnAssertFailure(const wxChar *file,
305 int line,
306 const wxChar *func,
307 const wxChar *cond,
308 const wxChar *msg);
309
310 // old version of the function without func parameter, for compatibility
311 // only, override OnAssertFailure() in the new code
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312 virtual void OnAssert(const wxChar *file,
313 int line,
314 const wxChar *cond,
315 const wxChar *msg);
a5f1fd3e 316#endif // __WXDEBUG__
8030d606 317
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318 // check that the wxBuildOptions object (constructed in the application
319 // itself, usually the one from IMPLEMENT_APP() macro) matches the build
320 // options of the library and abort if it doesn't
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321 static bool CheckBuildOptions(const char *optionsSignature,
322 const char *componentName);
73deed44 323
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324 // implementation only from now on
325 // -------------------------------
326
327 // helpers for dynamic wxApp construction
328 static void SetInitializerFunction(wxAppInitializerFunction fn)
e2478fde 329 { ms_appInitFn = fn; }
094637f6 330 static wxAppInitializerFunction GetInitializerFunction()
e2478fde 331 { return ms_appInitFn; }
094637f6 332
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333 // accessors for ms_appInstance field (external code might wish to modify
334 // it, this is why we provide a setter here as well, but you should really
335 // know what you're doing if you call it), wxTheApp is usually used instead
336 // of GetInstance()
337 static wxAppConsole *GetInstance() { return ms_appInstance; }
338 static void SetInstance(wxAppConsole *app) { ms_appInstance = app; }
339
72cdf4c9 340
e2478fde 341 // command line arguments (public for backwards compatibility)
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342 int argc;
343
344 // this object is implicitly convertible to either "char**" (traditional
345 // type of argv parameter of main()) or to "wchar_t **" (for compatibility
346 // with Unicode build in previous wx versions and because the command line
347 // can, in pr
348#if wxUSE_UNICODE
349 wxCmdLineArgsArray argv;
350#else
351 char **argv;
352#endif
094637f6 353
094637f6 354protected:
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355 // the function which creates the traits object when GetTraits() needs it
356 // for the first time
357 virtual wxAppTraits *CreateTraits();
358
359
094637f6 360 // function used for dynamic wxApp creation
e2478fde 361 static wxAppInitializerFunction ms_appInitFn;
094637f6 362
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363 // the one and only global application object
364 static wxAppConsole *ms_appInstance;
365
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366 // create main loop from AppTraits or return NULL if
367 // there is no main loop implementation
2ddff00c 368 wxEventLoopBase *CreateMainLoop();
7cafd224 369
094637f6 370 // application info (must be set from the user code)
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371 wxString m_vendorName, // vendor name ("acme")
372 m_vendorDisplayName, // vendor display name (e.g. "ACME Inc")
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373 m_appName, // app name ("myapp")
374 m_appDisplayName, // app display name ("My Application")
375 m_className; // class name
a69be60b 376
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377 // the class defining the application behaviour, NULL initially and created
378 // by GetTraits() when first needed
379 wxAppTraits *m_traits;
380
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381 // the main event loop of the application (may be NULL if the loop hasn't
382 // been started yet or has already terminated)
2ddff00c 383 wxEventLoopBase *m_mainLoop;
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384
385 // the application object is a singleton anyhow, there is no sense in
386 // copying it
e0954e72 387 DECLARE_NO_COPY_CLASS(wxAppConsoleBase)
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388};
389
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390#if defined(__UNIX__)
391 #include "wx/unix/app.h"
392#else
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393 // this has to be a class and not a typedef as we forward declare it
394 class wxAppConsole : public wxAppConsoleBase { };
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395#endif
396
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397// ----------------------------------------------------------------------------
398// wxAppBase: the common part of wxApp implementations for all platforms
399// ----------------------------------------------------------------------------
400
1e6feb95 401#if wxUSE_GUI
e2478fde 402
bddd7a8d 403class WXDLLIMPEXP_CORE wxAppBase : public wxAppConsole
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404{
405public:
406 wxAppBase();
407 virtual ~wxAppBase();
408
409 // the virtual functions which may/must be overridden in the derived class
410 // -----------------------------------------------------------------------
411
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412 // very first initialization function
413 //
414 // Override: very rarely
05e2b077 415 virtual bool Initialize(int& argc, wxChar **argv);
94826170 416
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417 // a platform-dependent version of OnInit(): the code here is likely to
418 // depend on the toolkit. default version does nothing.
419 //
420 // Override: rarely.
421 virtual bool OnInitGui();
422
423 // called to start program execution - the default version just enters
424 // the main GUI loop in which events are received and processed until
425 // the last window is not deleted (if GetExitOnFrameDelete) or
426 // ExitMainLoop() is called. In console mode programs, the execution
427 // of the program really starts here
428 //
429 // Override: rarely in GUI applications, always in console ones.
430 virtual int OnRun();
431
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432 // a matching function for OnInit()
433 virtual int OnExit();
434
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435 // very last clean up function
436 //
437 // Override: very rarely
438 virtual void CleanUp();
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439
440
441 // the worker functions - usually not used directly by the user code
442 // -----------------------------------------------------------------
443
e2478fde 444
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445
446 // process all currently pending events right now
447 //
448 // it is an error to call Yield() recursively unless the value of
4629016d 449 // onlyIfNeeded is true
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450 //
451 // WARNING: this function is dangerous as it can lead to unexpected
452 // reentrancies (i.e. when called from an event handler it
453 // may result in calling the same event handler again), use
454 // with _extreme_ care or, better, don't use at all!
4629016d 455 virtual bool Yield(bool onlyIfNeeded = false) = 0;
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456
457 // this virtual function is called in the GUI mode when the application
458 // becomes idle and normally just sends wxIdleEvent to all interested
459 // parties
460 //
4629016d 461 // it should return true if more idle events are needed, false if not
1bf77ee5 462 virtual bool ProcessIdle();
e39af974 463
e39af974 464 // Send idle event to window and all subwindows
4629016d 465 // Returns true if more idle time is requested.
5109ae5d 466 virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event);
e2478fde 467
2dc62891 468
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469 // top level window functions
470 // --------------------------
471
4629016d 472 // return true if our app has focus
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473 virtual bool IsActive() const { return m_isActive; }
474
475 // set the "main" top level window
476 void SetTopWindow(wxWindow *win) { m_topWindow = win; }
477
478 // return the "main" top level window (if it hadn't been set previously
479 // with SetTopWindow(), will return just some top level window and, if
480 // there are none, will return NULL)
5ff14574 481 virtual wxWindow *GetTopWindow() const;
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482
483 // control the exit behaviour: by default, the program will exit the
484 // main loop (and so, usually, terminate) when the last top-level
485 // program window is deleted. Beware that if you disable this behaviour
4629016d 486 // (with SetExitOnFrameDelete(false)), you'll have to call
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487 // ExitMainLoop() explicitly from somewhere.
488 void SetExitOnFrameDelete(bool flag)
489 { m_exitOnFrameDelete = flag ? Yes : No; }
490 bool GetExitOnFrameDelete() const
491 { return m_exitOnFrameDelete == Yes; }
492
493
494 // display mode, visual, printing mode, ...
495 // ------------------------------------------------------------------------
496
497 // Get display mode that is used use. This is only used in framebuffer
b3c86150 498 // wxWin ports (such as wxMGL or wxDFB).
5ff14574 499 virtual wxVideoMode GetDisplayMode() const;
e2478fde 500 // Set display mode to use. This is only used in framebuffer wxWin
b3c86150 501 // ports (such as wxMGL or wxDFB). This method should be called from
e2478fde 502 // wxApp::OnInitGui
4629016d 503 virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; }
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504
505 // set use of best visual flag (see below)
9cf3d218 506 void SetUseBestVisual( bool flag, bool forceTrueColour = false )
515a31bf 507 { m_useBestVisual = flag; m_forceTrueColour = forceTrueColour; }
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508 bool GetUseBestVisual() const { return m_useBestVisual; }
509
510 // set/get printing mode: see wxPRINT_XXX constants.
511 //
512 // default behaviour is the normal one for Unix: always use PostScript
513 // printing.
514 virtual void SetPrintMode(int WXUNUSED(mode)) { }
515 int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }
516
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517 // Return the layout direction for the current locale or wxLayout_Default
518 // if it's unknown
519 virtual wxLayoutDirection GetLayoutDirection() const;
520
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521 // Change the theme used by the application, return true on success.
522 virtual bool SetNativeTheme(const wxString& WXUNUSED(theme)) { return false; }
523
e2478fde 524
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525 // command line parsing (GUI-specific)
526 // ------------------------------------------------------------------------
527
8030d606 528#if wxUSE_CMDLINE_PARSER
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529 virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
530 virtual void OnInitCmdLine(wxCmdLineParser& parser);
8030d606 531#endif
b913d3ed 532
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533 // miscellaneous other stuff
534 // ------------------------------------------------------------------------
535
536 // called by toolkit-specific code to set the app status: active (we have
537 // focus) or not and also the last window which had focus before we were
538 // deactivated
539 virtual void SetActive(bool isActive, wxWindow *lastFocus);
540
40ff126a 541#if WXWIN_COMPATIBILITY_2_6
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542 // OBSOLETE: don't use, always returns true
543 //
544 // returns true if the program is successfully initialized
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545 wxDEPRECATED( bool Initialized() );
546#endif // WXWIN_COMPATIBILITY_2_6
dd435a79 547
e2478fde 548protected:
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549 // delete all objects in wxPendingDelete list
550 void DeletePendingObjects();
551
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552 // override base class method to use GUI traits
553 virtual wxAppTraits *CreateTraits();
554
555
556 // the main top level window (may be NULL)
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557 wxWindow *m_topWindow;
558
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559 // if Yes, exit the main loop when the last top level window is deleted, if
560 // No don't do it and if Later -- only do it once we reach our OnRun()
561 //
562 // the explanation for using this strange scheme is given in appcmn.cpp
563 enum
564 {
565 Later = -1,
566 No,
567 Yes
568 } m_exitOnFrameDelete;
1e6feb95 569
90e572f1 570 // true if the app wants to use the best visual on systems where
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571 // more than one are available (Sun, SGI, XFree86 4.0 ?)
572 bool m_useBestVisual;
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573 // force TrueColour just in case "best" isn't TrueColour
574 bool m_forceTrueColour;
094637f6 575
90e572f1 576 // does any of our windows have focus?
1e6feb95 577 bool m_isActive;
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578
579
580 DECLARE_NO_COPY_CLASS(wxAppBase)
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581};
582
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583#if WXWIN_COMPATIBILITY_2_6
584 inline bool wxAppBase::Initialized() { return true; }
585#endif // WXWIN_COMPATIBILITY_2_6
586
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587// ----------------------------------------------------------------------------
588// now include the declaration of the real class
589// ----------------------------------------------------------------------------
590
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591#if defined(__WXPALMOS__)
592 #include "wx/palmos/app.h"
593#elif defined(__WXMSW__)
594 #include "wx/msw/app.h"
595#elif defined(__WXMOTIF__)
596 #include "wx/motif/app.h"
597#elif defined(__WXMGL__)
598 #include "wx/mgl/app.h"
599#elif defined(__WXDFB__)
600 #include "wx/dfb/app.h"
601#elif defined(__WXGTK20__)
602 #include "wx/gtk/app.h"
603#elif defined(__WXGTK__)
604 #include "wx/gtk1/app.h"
605#elif defined(__WXX11__)
606 #include "wx/x11/app.h"
607#elif defined(__WXMAC__)
ef0e9220 608 #include "wx/osx/app.h"
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609#elif defined(__WXCOCOA__)
610 #include "wx/cocoa/app.h"
611#elif defined(__WXPM__)
612 #include "wx/os2/app.h"
613#endif
614
e90c1d2a 615#else // !GUI
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616
617// wxApp is defined in core and we cannot define another one in wxBase,
618// so use the preprocessor to allow using wxApp in console programs too
619#define wxApp wxAppConsole
620
e90c1d2a 621#endif // GUI/!GUI
c801d85f 622
094637f6 623// ----------------------------------------------------------------------------
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624// the global data
625// ----------------------------------------------------------------------------
626
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627// for compatibility, we define this macro to access the global application
628// object of type wxApp
629//
630// note that instead of using of wxTheApp in application code you should
631// consider using DECLARE_APP() after which you may call wxGetApp() which will
632// return the object of the correct type (i.e. MyApp and not wxApp)
633//
634// the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in
635// console mode it does nothing at all
5c33522f 636#define wxTheApp static_cast<wxApp*>(wxApp::GetInstance())
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637
638// ----------------------------------------------------------------------------
639// global functions
640// ----------------------------------------------------------------------------
641
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642// event loop related functions only work in GUI programs
643// ------------------------------------------------------
644
ee31c392 645// Force an exit from main loop
bddd7a8d 646extern void WXDLLIMPEXP_BASE wxExit();
ee31c392 647
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648// avoid redeclaring this function here if it had been already declated by
649// wx/utils.h, this results in warnings from g++ with -Wredundant-decls
650#ifndef wx_YIELD_DECLARED
651#define wx_YIELD_DECLARED
652
ee31c392 653// Yield to other apps/messages
bddd7a8d 654extern bool WXDLLIMPEXP_BASE wxYield();
e90c1d2a 655
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656#endif // wx_YIELD_DECLARED
657
bf9e3e73 658// Yield to other apps/messages
bddd7a8d 659extern void WXDLLIMPEXP_BASE wxWakeUpIdle();
bf9e3e73 660
ee31c392 661// ----------------------------------------------------------------------------
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662// macros for dynamic creation of the application object
663// ----------------------------------------------------------------------------
664
665// Having a global instance of this class allows wxApp to be aware of the app
666// creator function. wxApp can then call this function to create a new app
667// object. Convoluted, but necessary.
c801d85f 668
bddd7a8d 669class WXDLLIMPEXP_BASE wxAppInitializer
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670{
671public:
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672 wxAppInitializer(wxAppInitializerFunction fn)
673 { wxApp::SetInitializerFunction(fn); }
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674};
675
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676// the code below defines a IMPLEMENT_WXWIN_MAIN macro which you can use if
677// your compiler really, really wants main() to be in your main program (e.g.
678// hello.cpp). Now IMPLEMENT_APP should add this code if required.
26a87b69 679
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680#define IMPLEMENT_WXWIN_MAIN_CONSOLE \
681 int main(int argc, char **argv) { return wxEntry(argc, argv); }
682
90e572f1 683// port-specific header could have defined it already in some special way
956495ca 684#ifndef IMPLEMENT_WXWIN_MAIN
7738c2e5 685 #define IMPLEMENT_WXWIN_MAIN IMPLEMENT_WXWIN_MAIN_CONSOLE
956495ca 686#endif // defined(IMPLEMENT_WXWIN_MAIN)
26a87b69 687
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688#ifdef __WXUNIVERSAL__
689 #include "wx/univ/theme.h"
690
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691 #ifdef wxUNIV_DEFAULT_THEME
692 #define IMPLEMENT_WX_THEME_SUPPORT \
693 WX_USE_THEME(wxUNIV_DEFAULT_THEME);
694 #else
695 #define IMPLEMENT_WX_THEME_SUPPORT
696 #endif
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697#else
698 #define IMPLEMENT_WX_THEME_SUPPORT
699#endif
c801d85f 700
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701// Use this macro if you want to define your own main() or WinMain() function
702// and call wxEntry() from there.
94826170 703#define IMPLEMENT_APP_NO_MAIN(appname) \
e8e1149b 704 wxAppConsole *wxCreateApp() \
94826170 705 { \
2a7c7605 706 wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, \
82c75aea 707 "your program"); \
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708 return new appname; \
709 } \
710 wxAppInitializer \
711 wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
17a1ebd1 712 DECLARE_APP(appname) \
5c33522f 713 appname& wxGetApp() { return *static_cast<appname*>(wxApp::GetInstance()); }
c661ecca 714
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715// Same as IMPLEMENT_APP() normally but doesn't include themes support in
716// wxUniversal builds
717#define IMPLEMENT_APP_NO_THEMES(appname) \
718 IMPLEMENT_APP_NO_MAIN(appname) \
719 IMPLEMENT_WXWIN_MAIN
720
721// Use this macro exactly once, the argument is the name of the wxApp-derived
722// class which is the class of your application.
723#define IMPLEMENT_APP(appname) \
724 IMPLEMENT_APP_NO_THEMES(appname) \
725 IMPLEMENT_WX_THEME_SUPPORT
726
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727// Same as IMPLEMENT_APP(), but for console applications.
728#define IMPLEMENT_APP_CONSOLE(appname) \
729 IMPLEMENT_APP_NO_MAIN(appname) \
730 IMPLEMENT_WXWIN_MAIN_CONSOLE
731
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732// this macro can be used multiple times and just allows you to use wxGetApp()
733// function
094637f6 734#define DECLARE_APP(appname) extern appname& wxGetApp();
c801d85f 735
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736
737// declare the stuff defined by IMPLEMENT_APP() macro, it's not really needed
738// anywhere else but at the very least it suppresses icc warnings about
739// defining extern symbols without prior declaration, and it shouldn't do any
740// harm
741extern wxAppConsole *wxCreateApp();
742extern wxAppInitializer wxTheAppInitializer;
743
94826170 744#endif // _WX_APP_H_BASE_