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