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 #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