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