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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: app.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling, Julian Smart
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #ifdef __GNUG__
11 #pragma implementation "app.h"
12 #endif
13
14 #include "wx/app.h"
15 #include "wx/gdicmn.h"
16 #include "wx/utils.h"
17 #include "wx/intl.h"
18 #include "wx/log.h"
19 #include "wx/memory.h"
20 #include "wx/font.h"
21 #include "wx/settings.h"
22 #include "wx/resource.h"
23 #include "wx/module.h"
24 #include "wx/image.h"
25
26 #include "unistd.h"
27
28 //-----------------------------------------------------------------------------
29 // global data
30 //-----------------------------------------------------------------------------
31
32 wxApp *wxTheApp = (wxApp *) NULL;
33 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
34
35 extern wxList wxPendingDelete;
36 extern wxResourceCache *wxTheResourceCache;
37
38 unsigned char g_palette[64*3] =
39 {
40 0x0, 0x0, 0x0,
41 0xff, 0xff, 0xff,
42 0xff, 0x0, 0x0,
43 0xff, 0xff, 0x0,
44 0x0, 0xff, 0x0,
45 0x0, 0x0, 0xff,
46 0x0, 0xff, 0xff,
47 0x99, 0x99, 0x99,
48 0xff, 0x88, 0x0,
49 0x88, 0x0, 0x0,
50 0x0, 0x88, 0x88,
51 0x88, 0x88, 0x0,
52 0xff, 0xcc, 0x97,
53 0xbb, 0xbb, 0xbb,
54 0x9f, 0x6b, 0x42,
55 0x55, 0x55, 0x55,
56 0xdd, 0xdd, 0xdd,
57 0x77, 0x77, 0x77,
58 0x33, 0x33, 0x33,
59 0xcc, 0x0, 0x0,
60 0xff, 0x44, 0x0,
61 0xff, 0xcc, 0x0,
62 0xcc, 0xcc, 0x0,
63 0x60, 0x60, 0x0,
64 0x0, 0x43, 0x0,
65 0x0, 0x7f, 0x0,
66 0x0, 0xcc, 0x0,
67 0x0, 0x44, 0x44,
68 0x0, 0x0, 0x44,
69 0x0, 0x0, 0x88,
70 0xef, 0xb1, 0x7b,
71 0xdf, 0x98, 0x5f,
72 0xbf, 0x87, 0x56,
73 0x7f, 0x57, 0x26,
74 0x5f, 0x39, 0xc,
75 0x3f, 0x1c, 0x0,
76 0x21, 0x0, 0x0,
77 0x0, 0x43, 0x87,
78 0x2d, 0x70, 0xaf,
79 0x5a, 0x9e, 0xd7,
80 0x87, 0xcc, 0xff,
81 0xff, 0xe0, 0xba,
82 0x21, 0x43, 0xf,
83 0x3d, 0x5d, 0x25,
84 0x59, 0x78, 0x3a,
85 0x75, 0x93, 0x4f,
86 0x91, 0xae, 0x64,
87 0xad, 0xc8, 0x7a,
88 0xf0, 0xa8, 0xef,
89 0xd0, 0x88, 0xd0,
90 0xaf, 0x66, 0xaf,
91 0x8e, 0x44, 0x8e,
92 0x6d, 0x22, 0x6d,
93 0x4b, 0x0, 0x4b,
94 0xff, 0xc0, 0xbc,
95 0xff, 0x93, 0x91,
96 0xff, 0x66, 0x67,
97 0xd8, 0xf2, 0xbf,
98 0xff, 0xc9, 0x68,
99 0xff, 0x96, 0x67,
100 0xa5, 0x60, 0xff,
101 0x51, 0xff, 0x99,
102 0x3f, 0xa5, 0x63,
103 0x98, 0x90, 0x67
104 };
105
106 //-----------------------------------------------------------------------------
107 // local functions
108 //-----------------------------------------------------------------------------
109
110 extern void wxFlushResources(void);
111
112 //-----------------------------------------------------------------------------
113 // global functions
114 //-----------------------------------------------------------------------------
115
116 void wxExit(void)
117 {
118 gtk_main_quit();
119 }
120
121 bool wxYield(void)
122 {
123 while (gtk_events_pending() > 0) gtk_main_iteration();
124 return TRUE;
125 }
126
127 //-----------------------------------------------------------------------------
128 // wxApp
129 //-----------------------------------------------------------------------------
130
131 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
132
133 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
134 EVT_IDLE(wxApp::OnIdle)
135 END_EVENT_TABLE()
136
137 gint wxapp_idle_callback( gpointer WXUNUSED(data) )
138 {
139 if (wxTheApp) while (wxTheApp->ProcessIdle()) {}
140 usleep( 10000 );
141 return TRUE;
142 }
143
144 wxApp::wxApp()
145 {
146 m_idleTag = 0;
147 m_topWindow = (wxWindow *) NULL;
148 m_exitOnFrameDelete = TRUE;
149 wxTheApp = this;
150 }
151
152 wxApp::~wxApp(void)
153 {
154 gtk_idle_remove( m_idleTag );
155 }
156
157 bool wxApp::OnInit(void)
158 {
159 return TRUE;
160 }
161
162 bool wxApp::OnInitGui(void)
163 {
164 m_idleTag = gtk_idle_add( wxapp_idle_callback, NULL );
165 return TRUE;
166 }
167
168 int wxApp::OnRun(void)
169 {
170 return MainLoop();
171 }
172
173 bool wxApp::ProcessIdle(void)
174 {
175 wxIdleEvent event;
176 event.SetEventObject( this );
177 ProcessEvent( event );
178
179 return event.MoreRequested();
180 }
181
182 void wxApp::OnIdle( wxIdleEvent &event )
183 {
184 static bool inOnIdle = FALSE;
185
186 // Avoid recursion (via ProcessEvent default case)
187 if (inOnIdle)
188 return;
189
190 inOnIdle = TRUE;
191
192 // 'Garbage' collection of windows deleted with Close().
193 DeletePendingObjects();
194
195 // flush the logged messages if any
196 wxLog *pLog = wxLog::GetActiveTarget();
197 if (pLog != NULL && pLog->HasPendingMessages())
198 pLog->Flush();
199
200 // Send OnIdle events to all windows
201 bool needMore = SendIdleEvents();
202
203 if (needMore)
204 event.RequestMore(TRUE);
205
206 inOnIdle = FALSE;
207 }
208
209 bool wxApp::SendIdleEvents(void)
210 {
211 bool needMore = FALSE;
212
213 wxNode* node = wxTopLevelWindows.First();
214 while (node)
215 {
216 wxWindow* win = (wxWindow*) node->Data();
217 if (SendIdleEvents(win))
218 needMore = TRUE;
219 node = node->Next();
220 }
221 return needMore;
222 }
223
224 bool wxApp::SendIdleEvents( wxWindow* win )
225 {
226 bool needMore = FALSE;
227
228 wxIdleEvent event;
229 event.SetEventObject(win);
230 win->ProcessEvent(event);
231
232 if (event.MoreRequested())
233 needMore = TRUE;
234
235 wxNode* node = win->GetChildren().First();
236 while (node)
237 {
238 wxWindow* win = (wxWindow*) node->Data();
239 if (SendIdleEvents(win))
240 needMore = TRUE;
241
242 node = node->Next();
243 }
244 return needMore ;
245 }
246
247 int wxApp::OnExit(void)
248 {
249 return 0;
250 }
251
252 int wxApp::MainLoop(void)
253 {
254 gtk_main();
255 return 0;
256 }
257
258 void wxApp::ExitMainLoop(void)
259 {
260 gtk_main_quit();
261 }
262
263 bool wxApp::Initialized(void)
264 {
265 return m_initialized;
266 }
267
268 bool wxApp::Pending(void)
269 {
270 return FALSE;
271 }
272
273 void wxApp::Dispatch(void)
274 {
275 }
276
277 void wxApp::DeletePendingObjects(void)
278 {
279 wxNode *node = wxPendingDelete.First();
280 while (node)
281 {
282 wxObject *obj = (wxObject *)node->Data();
283
284 delete obj;
285
286 if (wxPendingDelete.Member(obj))
287 delete node;
288
289 node = wxPendingDelete.First();
290 }
291 }
292
293 wxWindow *wxApp::GetTopWindow(void)
294 {
295 if (m_topWindow) return m_topWindow;
296 wxNode *node = wxTopLevelWindows.First();
297 if (!node) return (wxWindow *) NULL;
298 return (wxWindow*)node->Data();
299 }
300
301 void wxApp::SetTopWindow( wxWindow *win )
302 {
303 m_topWindow = win;
304 }
305
306 void wxApp::CommonInit(void)
307 {
308
309 /*
310 #if wxUSE_RESOURCES
311 (void) wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
312 #endif
313 */
314 wxSystemSettings::Init();
315 wxTheResourceCache = new wxResourceCache(wxKEY_STRING);
316
317 wxTheFontNameDirectory = new wxFontNameDirectory;
318 wxTheFontNameDirectory->Initialize();
319
320 wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
321 wxTheColourDatabase->Initialize();
322
323 wxInitializeStockLists();
324 wxInitializeStockObjects();
325
326 wxInitializeResourceSystem();
327
328 wxImage::InitStandardHandlers();
329
330 // g_globalCursor = new wxCursor;
331 }
332
333 void wxApp::CommonCleanUp(void)
334 {
335 wxDELETE(wxTheColourDatabase);
336 wxDELETE(wxTheFontNameDirectory);
337 wxDeleteStockObjects();
338
339 wxFlushResources();
340
341 wxDELETE(wxTheResourceCache);
342
343 wxDeleteStockLists();
344
345 wxCleanUpResourceSystem();
346
347 wxImage::CleanUpHandlers();
348
349 wxSystemSettings::Done();
350 }
351
352 wxLog *wxApp::CreateLogTarget()
353 {
354 return new wxLogGui;
355 }
356
357 //-----------------------------------------------------------------------------
358 // wxEntry
359 //-----------------------------------------------------------------------------
360
361 int wxEntry( int argc, char *argv[] )
362 {
363 wxBuffer = new char[BUFSIZ + 512];
364
365 wxClassInfo::InitializeClasses();
366
367 /* Debug stream no longer used
368 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
369
370 streambuf* sBuf = new wxDebugStreamBuf;
371 ostream* oStr = new ostream(sBuf) ;
372 wxDebugContext::SetStream(oStr, sBuf);
373 #endif
374 */
375
376 if (!wxTheApp)
377 {
378 if (!wxApp::GetInitializerFunction())
379 {
380 printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
381 return 0;
382 }
383
384 wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
385
386 wxObject *test_app = app_ini();
387
388 wxTheApp = (wxApp*) test_app;
389 }
390
391 if (!wxTheApp)
392 {
393 printf( "wxWindows error: wxTheApp == NULL\n" );
394 return 0;
395 }
396
397 wxTheApp->argc = argc;
398 wxTheApp->argv = argv;
399
400 char name[200];
401 strcpy( name, argv[0] );
402 strcpy( name, wxFileNameFromPath(name) );
403 wxStripExtension( name );
404 wxTheApp->SetAppName( name );
405
406 gtk_set_locale();
407
408 gtk_init( &argc, &argv );
409
410 GdkColormap *cmap = gdk_colormap_new( gdk_visual_get_system(), TRUE );
411
412 for (int i = 0; i < 64; i++)
413 {
414 GdkColor col;
415 col.red = g_palette[i*3 + 0] << 8;
416 col.green = g_palette[i*3 + 1] << 8;
417 col.blue = g_palette[i*3 + 2] << 8;
418 col.pixel = 0;
419
420 gdk_color_alloc( cmap, &col );
421 }
422
423 gtk_widget_push_colormap( cmap );
424
425 gtk_widget_set_default_colormap( cmap );
426
427 wxApp::CommonInit();
428
429 wxModule::RegisterModules();
430 if (!wxModule::InitializeModules()) return FALSE;
431
432 wxTheApp->OnInitGui();
433
434 // Here frames insert themselves automatically
435 // into wxTopLevelWindows by getting created
436 // in OnInit().
437
438 if (!wxTheApp->OnInit()) return 0;
439
440 wxTheApp->m_initialized = (wxTopLevelWindows.Number() > 0);
441
442 int retValue = 0;
443
444 if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
445
446 wxTheApp->DeletePendingObjects();
447
448 wxTheApp->OnExit();
449
450 wxModule::CleanUpModules();
451
452 wxApp::CommonCleanUp();
453
454 delete wxTheApp;
455 wxTheApp = (wxApp*) NULL;
456
457 wxClassInfo::CleanUpClasses();
458
459 delete[] wxBuffer;
460
461 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
462
463 if (wxDebugContext::CountObjectsLeft() > 0)
464 {
465 wxLogDebug("There were memory leaks.\n");
466 wxDebugContext::Dump();
467 wxDebugContext::PrintStatistics();
468 }
469 // wxDebugContext::SetStream(NULL, NULL);
470
471 #endif
472
473 wxLog *oldLog = wxLog::SetActiveTarget( NULL );
474 if (oldLog) delete oldLog;
475
476 return retValue;
477 }
478
479 //-----------------------------------------------------------------------------
480 // main()
481 //-----------------------------------------------------------------------------
482
483 #if defined(AIX) || defined(AIX4) || defined(____HPUX__) || defined(NOMAIN)
484
485 // main in IMPLEMENT_WX_MAIN in IMPLEMENT_APP in app.h
486
487 #else
488
489 int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
490
491 #endif
492
493