src/gtk1/app.cpp

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