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