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Add doc for wxGraphicsContext.Create(), which is a lightweight context with no target...
[wxWidgets.git] / src / gtk / app.cpp
diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 630733a3aecb2970f6dcd754556611c1ec0787a1..3754531c01719eec088d7256fea9fee7700b4315 100644 (file)
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////
-// Name:        app.cpp
+// Name:        src/gtk/app.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,487 +7,552 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "app.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
 #include "wx/app.h"
 
 #include "wx/app.h"
-#include "wx/gdicmn.h"
-#include "wx/utils.h"
-#include "wx/intl.h"
-#include "wx/log.h"
-#include "wx/memory.h"
-#include "wx/font.h"
-#include "wx/settings.h"
-#include "wx/resource.h"
-#include "wx/module.h"
-#include "wx/image.h"
-
-#include "unistd.h"
 
 
-//-----------------------------------------------------------------------------
-// global data
-//-----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/memory.h"
+    #include "wx/font.h"
+#endif
+
+#include "wx/thread.h"
 
 
-wxApp *wxTheApp = (wxApp *)  NULL;
-wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
+#ifdef __WXGPE__
+    #include <gpe/init.h>
+#endif
 
 
-extern wxList wxPendingDelete;
-extern wxResourceCache *wxTheResourceCache;
+#include "wx/apptrait.h"
+#include "wx/fontmap.h"
 
 
-unsigned char g_palette[64*3] =
-{
-  0x0,  0x0,  0x0,
-  0xff, 0xff, 0xff,
-  0xff, 0x0,  0x0,
-  0xff, 0xff, 0x0,
-  0x0,  0xff, 0x0,
-  0x0,  0x0,  0xff,
-  0x0,  0xff, 0xff,
-  0x99, 0x99, 0x99,
-  0xff, 0x88, 0x0,
-  0x88, 0x0,  0x0,
-  0x0,  0x88, 0x88,
-  0x88, 0x88, 0x0,
-  0xff, 0xcc, 0x97,
-  0xbb, 0xbb, 0xbb,
-  0x9f, 0x6b, 0x42,
-  0x55, 0x55, 0x55,
-  0xdd, 0xdd, 0xdd,
-  0x77, 0x77, 0x77,
-  0x33, 0x33, 0x33,
-  0xcc, 0x0,  0x0,
-  0xff, 0x44, 0x0,
-  0xff, 0xcc, 0x0,
-  0xcc, 0xcc, 0x0,
-  0x60, 0x60, 0x0,
-  0x0,  0x43, 0x0,
-  0x0,  0x7f, 0x0,
-  0x0,  0xcc, 0x0,
-  0x0,  0x44, 0x44,
-  0x0,  0x0,  0x44,
-  0x0,  0x0,  0x88,
-  0xef, 0xb1, 0x7b,
-  0xdf, 0x98, 0x5f,
-  0xbf, 0x87, 0x56,
-  0x7f, 0x57, 0x26,
-  0x5f, 0x39, 0xc,
-  0x3f, 0x1c, 0x0,
-  0x21, 0x0,  0x0,
-  0x0,  0x43, 0x87,
-  0x2d, 0x70, 0xaf,
-  0x5a, 0x9e, 0xd7,
-  0x87, 0xcc, 0xff,
-  0xff, 0xe0, 0xba,
-  0x21, 0x43, 0xf,
-  0x3d, 0x5d, 0x25,
-  0x59, 0x78, 0x3a,
-  0x75, 0x93, 0x4f,
-  0x91, 0xae, 0x64,
-  0xad, 0xc8, 0x7a,
-  0xf0, 0xa8, 0xef, 
-  0xd0, 0x88, 0xd0,
-  0xaf, 0x66, 0xaf,
-  0x8e, 0x44, 0x8e,
-  0x6d, 0x22, 0x6d,
-  0x4b, 0x0,  0x4b, 
-  0xff, 0xc0, 0xbc,
-  0xff, 0x93, 0x91,
-  0xff, 0x66, 0x67,
-  0xd8, 0xf2, 0xbf,
-  0xff, 0xc9, 0x68,
-  0xff, 0x96, 0x67,
-  0xa5, 0x60, 0xff,
-  0x51, 0xff, 0x99,
-  0x3f, 0xa5, 0x63,
-  0x98, 0x90, 0x67
-};
+#if wxUSE_LIBHILDON
+    #include <hildon-widgets/hildon-program.h>
+#endif // wxUSE_LIBHILDON
 
 
-//-----------------------------------------------------------------------------
-// local functions
-//-----------------------------------------------------------------------------
+#if wxUSE_LIBHILDON2
+    #include <hildon/hildon.h>
+#endif // wxUSE_LIBHILDON2
 
 
-extern void wxFlushResources(void);
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
-// global functions
+// link GnomeVFS
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 
-void wxExit(void)
-{
-    gtk_main_quit();
-}
-
-bool wxYield(void)
-{
-    while (gtk_events_pending() > 0) gtk_main_iteration();
-    return TRUE;
-}
+#if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS
+    #include "wx/link.h"
+    wxFORCE_LINK_MODULE(gnome_vfs)
+#endif
 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
-// wxApp
+// local functions
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
-
-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
-    EVT_IDLE(wxApp::OnIdle)
-END_EVENT_TABLE()
-
-gint wxapp_idle_callback( gpointer WXUNUSED(data) )
-{
-    if (wxTheApp) while (wxTheApp->ProcessIdle()) {}
-    usleep( 10000 );
-    return TRUE;
-}
-
-wxApp::wxApp()
-{
-    m_idleTag = 0;
-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
-    wxTheApp = this;
-}
-
-wxApp::~wxApp(void)
+// One-shot signal emission hook, to install idle handler.
+extern "C" {
+static gboolean
+wx_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer data)
 {
 {
-    gtk_idle_remove( m_idleTag );
+    wxApp* app = wxTheApp;
+    if (app != NULL)
+        app->WakeUpIdle();
+    bool* hook_installed = (bool*)data;
+    // record that hook is not installed
+    *hook_installed = false;
+    // remove hook
+    return false;
 }
 }
-
-bool wxApp::OnInit(void)
-{
-    return TRUE;
-}
-
-bool wxApp::OnInitGui(void)
-{
-    m_idleTag = gtk_idle_add( wxapp_idle_callback, NULL );
-    return TRUE;
 }
 
 }
 
-int wxApp::OnRun(void)
+// Add signal emission hooks, to re-install idle handler when needed.
+static void wx_add_idle_hooks()
 {
 {
-    return MainLoop();
+    // "event" hook
+    {
+        static bool hook_installed;
+        if (!hook_installed)
+        {
+            static guint sig_id;
+            if (sig_id == 0)
+                sig_id = g_signal_lookup("event", GTK_TYPE_WIDGET);
+            hook_installed = true;
+            g_signal_add_emission_hook(
+                sig_id, 0, wx_emission_hook, &hook_installed, NULL);
+        }
+    }
+    // "size_allocate" hook
+    // Needed to match the behaviour of the old idle system,
+    // but probably not necessary.
+    {
+        static bool hook_installed;
+        if (!hook_installed)
+        {
+            static guint sig_id;
+            if (sig_id == 0)
+                sig_id = g_signal_lookup("size_allocate", GTK_TYPE_WIDGET);
+            hook_installed = true;
+            g_signal_add_emission_hook(
+                sig_id, 0, wx_emission_hook, &hook_installed, NULL);
+        }
+    }
 }
 
 }
 
-bool wxApp::ProcessIdle(void)
+extern "C" {
+static gboolean wxapp_idle_callback(gpointer)
 {
 {
-    wxIdleEvent event;
-    event.SetEventObject( this );
-    ProcessEvent( event );
-
-    return event.MoreRequested();
+    return wxTheApp->DoIdle();
 }
 }
-
-void wxApp::OnIdle( wxIdleEvent &event )
-{
-    static bool inOnIdle = FALSE;
-
-    // Avoid recursion (via ProcessEvent default case)
-    if (inOnIdle)
-        return;
-
-    inOnIdle = TRUE;
-
-    // 'Garbage' collection of windows deleted with Close().
-    DeletePendingObjects();
-
-    // flush the logged messages if any
-    wxLog *pLog = wxLog::GetActiveTarget();
-    if (pLog != NULL && pLog->HasPendingMessages())
-        pLog->Flush();
-
-    // Send OnIdle events to all windows
-    bool needMore = SendIdleEvents();
-
-    if (needMore)
-        event.RequestMore(TRUE);
-
-    inOnIdle = FALSE;
 }
 
 }
 
-bool wxApp::SendIdleEvents(void)
+bool wxApp::DoIdle()
 {
 {
-    bool needMore = FALSE;
-    
-    wxNode* node = wxTopLevelWindows.First();
-    while (node)
+    guint id_save;
     {
     {
-  wxWindow* win = (wxWindow*) node->Data();
-  if (SendIdleEvents(win))
-            needMore = TRUE;
-        node = node->Next();
+        // Allow another idle source to be added while this one is busy.
+        // Needed if an idle event handler runs a new event loop,
+        // for example by showing a dialog.
+#if wxUSE_THREADS
+        wxMutexLocker lock(m_idleMutex);
+#endif
+        id_save = m_idleSourceId;
+        m_idleSourceId = 0;
+        wx_add_idle_hooks();
+
+#if wxDEBUG_LEVEL
+        // don't generate the idle events while the assert modal dialog is shown,
+        // this matches the behaviour of wxMSW
+        if (m_isInAssert)
+            return false;
+#endif
     }
     }
-    return needMore;
-}
 
 
-bool wxApp::SendIdleEvents( wxWindow* win )
-{
-    bool needMore = FALSE;
+    gdk_threads_enter();
+    bool needMore;
+    do {
+        ProcessPendingEvents();
 
 
-    wxIdleEvent event;
-    event.SetEventObject(win);
-    win->ProcessEvent(event);
+        needMore = ProcessIdle();
+    } while (needMore && gtk_events_pending() == 0);
+    gdk_threads_leave();
 
 
-    if (event.MoreRequested())
-        needMore = TRUE;
+#if wxUSE_THREADS
+    wxMutexLocker lock(m_idleMutex);
+#endif
 
 
-    wxNode* node = win->GetChildren().First();
-    while (node)
+    bool keepSource = false;
+    // if a new idle source has not been added, either as a result of idle
+    // processing above or by another thread calling WakeUpIdle()
+    if (m_idleSourceId == 0)
     {
     {
-        wxWindow* win = (wxWindow*) node->Data();
-        if (SendIdleEvents(win))
-            needMore = TRUE;
-
-        node = node->Next();
+        // if more idle processing was requested or pending events have appeared
+        if (needMore || HasPendingEvents())
+        {
+            // keep this source installed
+            m_idleSourceId = id_save;
+            keepSource = true;
+        }
+        else // add hooks and remove this source
+            wx_add_idle_hooks();
     }
     }
-    return needMore ;
-}
+    // else remove this source, leave new one installed
+    // we must keep an idle source, otherwise a wakeup could be lost
 
 
-int wxApp::OnExit(void)
-{
-    return 0;
+    return keepSource;
 }
 
 }
 
-int wxApp::MainLoop(void)
-{
-    gtk_main();
-    return 0;
-}
+//-----------------------------------------------------------------------------
+// Access to the root window global
+//-----------------------------------------------------------------------------
 
 
-void wxApp::ExitMainLoop(void)
+GtkWidget* wxGetRootWindow()
 {
 {
-    gtk_main_quit();
-}
+    static GtkWidget *s_RootWindow = NULL;
 
 
-bool wxApp::Initialized(void)
-{
-    return m_initialized;
+    if (s_RootWindow == NULL)
+    {
+        s_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+        gtk_widget_realize( s_RootWindow );
+    }
+    return s_RootWindow;
 }
 
 }
 
-bool wxApp::Pending(void)
+//-----------------------------------------------------------------------------
+// wxApp
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
+
+wxApp::wxApp()
 {
 {
-    return FALSE;
+    m_isInAssert = false;
+    m_idleSourceId = 0;
 }
 
 }
 
-void wxApp::Dispatch(void)
+wxApp::~wxApp()
 {
 }
 
 {
 }
 
-void wxApp::DeletePendingObjects(void)
+bool wxApp::SetNativeTheme(const wxString& theme)
 {
 {
-    wxNode *node = wxPendingDelete.First();
-    while (node)
+#ifdef __WXGTK3__
+    wxUnusedVar(theme);
+    return false;
+#else
+    wxString path;
+    path = gtk_rc_get_theme_dir();
+    path += "/";
+    path += theme.utf8_str();
+    path += "/gtk-2.0/gtkrc";
+
+    if ( wxFileExists(path.utf8_str()) )
+        gtk_rc_add_default_file(path.utf8_str());
+    else if ( wxFileExists(theme.utf8_str()) )
+        gtk_rc_add_default_file(theme.utf8_str());
+    else
     {
     {
-        wxObject *obj = (wxObject *)node->Data();
-
-        delete obj;
-
-        if (wxPendingDelete.Member(obj))
-        delete node;
+        wxLogWarning("Theme \"%s\" not available.", theme);
 
 
-        node = wxPendingDelete.First();
+        return false;
     }
     }
-}
 
 
-wxWindow *wxApp::GetTopWindow(void)
-{
-    if (m_topWindow) return m_topWindow;
-    wxNode *node = wxTopLevelWindows.First();
-    if (!node) return (wxWindow *) NULL;
-    return (wxWindow*)node->Data();
-}
+    gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE);
 
 
-void wxApp::SetTopWindow( wxWindow *win )
-{
-    m_topWindow = win;
+    return true;
+#endif
 }
 
 }
 
-void wxApp::CommonInit(void)
+bool wxApp::OnInitGui()
 {
 {
+    if ( !wxAppBase::OnInitGui() )
+        return false;
 
 
-/*
-#if wxUSE_RESOURCES
-  (void) wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
-#endif
-*/
-  wxSystemSettings::Init();
-  wxTheResourceCache = new wxResourceCache(wxKEY_STRING);
-
-  wxTheFontNameDirectory =  new wxFontNameDirectory;
-  wxTheFontNameDirectory->Initialize();
-
-  wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
-  wxTheColourDatabase->Initialize();
+#ifndef __WXGTK3__
+    // if this is a wxGLApp (derived from wxApp), and we've already
+    // chosen a specific visual, then derive the GdkVisual from that
+    if ( GetXVisualInfo() )
+    {
+        GdkVisual* vis = gtk_widget_get_default_visual();
 
 
-  wxInitializeStockLists();
-  wxInitializeStockObjects();
+        GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
+        gtk_widget_set_default_colormap( colormap );
+    }
+    else
+    {
+        // On some machines, the default visual is just 256 colours, so
+        // we make sure we get the best. This can sometimes be wasteful.
+        if (m_useBestVisual)
+        {
+            if (m_forceTrueColour)
+            {
+                GdkVisual* visual = gdk_visual_get_best_with_both( 24, GDK_VISUAL_TRUE_COLOR );
+                if (!visual)
+                {
+                    wxLogError(wxT("Unable to initialize TrueColor visual."));
+                    return false;
+                }
+                GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
+                gtk_widget_set_default_colormap( colormap );
+            }
+            else
+            {
+                if (gdk_visual_get_best() != gdk_visual_get_system())
+                {
+                    GdkVisual* visual = gdk_visual_get_best();
+                    GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
+                    gtk_widget_set_default_colormap( colormap );
+                }
+            }
+        }
+    }
+#endif
 
 
-  wxInitializeResourceSystem();
+#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+    if ( !GetHildonProgram() )
+    {
+        wxLogError(_("Unable to initialize Hildon program"));
+        return false;
+    }
+#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 
 
-  wxImage::InitStandardHandlers();
-  
-//  g_globalCursor = new wxCursor;
+    return true;
 }
 
 }
 
-void wxApp::CommonCleanUp(void)
+// use unusual names for the parameters to avoid conflict with wxApp::arg[cv]
+bool wxApp::Initialize(int& argc_, wxChar **argv_)
 {
 {
-    wxDELETE(wxTheColourDatabase);
-    wxDELETE(wxTheFontNameDirectory);
-    wxDeleteStockObjects();
+    if ( !wxAppBase::Initialize(argc_, argv_) )
+        return false;
 
 
-    wxFlushResources();
+#if wxUSE_THREADS
+    if (!g_thread_supported())
+    {
+        g_thread_init(NULL);
+        gdk_threads_init();
+    }
+#endif // wxUSE_THREADS
+
+    // gtk+ 2.0 supports Unicode through UTF-8 strings
+    wxConvCurrent = &wxConvUTF8;
+
+#ifdef __UNIX__
+    // decide which conversion to use for the file names
+
+    // (1) this variable exists for the sole purpose of specifying the encoding
+    //     of the filenames for GTK+ programs, so use it if it is set
+    wxString encName(wxGetenv(wxT("G_FILENAME_ENCODING")));
+    encName = encName.BeforeFirst(wxT(','));
+    if (encName.CmpNoCase(wxT("@locale")) == 0)
+        encName.clear();
+    encName.MakeUpper();
+    if (encName.empty())
+    {
+#if wxUSE_INTL
+        // (2) if a non default locale is set, assume that the user wants his
+        //     filenames in this locale too
+        encName = wxLocale::GetSystemEncodingName().Upper();
 
 
-    wxDELETE(wxTheResourceCache);
+        // But don't consider ASCII in this case.
+        if ( !encName.empty() )
+        {
+#if wxUSE_FONTMAP
+            wxFontEncoding enc = wxFontMapperBase::GetEncodingFromName(encName);
+            if ( enc == wxFONTENCODING_DEFAULT )
+#else // !wxUSE_FONTMAP
+            if ( encName == wxT("US-ASCII") )
+#endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
+            {
+                // This means US-ASCII when returned from GetEncodingFromName().
+                encName.clear();
+            }
+        }
+#endif // wxUSE_INTL
 
 
-    wxDeleteStockLists();
+        // (3) finally use UTF-8 by default
+        if ( encName.empty() )
+            encName = wxT("UTF-8");
+        wxSetEnv(wxT("G_FILENAME_ENCODING"), encName);
+    }
 
 
-    wxCleanUpResourceSystem();
-  
-    wxImage::CleanUpHandlers();
+    static wxConvBrokenFileNames fileconv(encName);
+    wxConvFileName = &fileconv;
+#endif // __UNIX__
 
 
-    wxSystemSettings::Done();
-}
 
 
-wxLog *wxApp::CreateLogTarget()
-{
-  return new wxLogGui;
-}
+    bool init_result;
+    int i;
 
 
-//-----------------------------------------------------------------------------
-// wxEntry
-//-----------------------------------------------------------------------------
+#if wxUSE_UNICODE
+    // gtk_init() wants UTF-8, not wchar_t, so convert
+    char **argvGTK = new char *[argc_ + 1];
+    for ( i = 0; i < argc_; i++ )
+    {
+        argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv_[i]));
+    }
 
 
-int wxEntry( int argc, char *argv[] )
-{
-    wxBuffer = new char[BUFSIZ + 512];
+    argvGTK[argc_] = NULL;
 
 
-    wxClassInfo::InitializeClasses();
+    int argcGTK = argc_;
 
 
-  /* Debug stream no longer used
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    // Prevent gtk_init_check() from changing the locale automatically for
+    // consistency with the other ports that don't do it. If necessary,
+    // wxApp::SetCLocale() may be explicitly called.
+    gtk_disable_setlocale();
 
 
-  streambuf* sBuf = new wxDebugStreamBuf;
-  ostream* oStr = new ostream(sBuf) ;
-  wxDebugContext::SetStream(oStr, sBuf);
+#ifdef __WXGPE__
+    init_result = true;  // is there a _check() version of this?
+    gpe_application_init( &argcGTK, &argvGTK );
+#else
+    init_result = gtk_init_check( &argcGTK, &argvGTK ) != 0;
 #endif
 #endif
-*/
 
 
-    if (!wxTheApp)
+    if ( argcGTK != argc_ )
     {
     {
-        if (!wxApp::GetInitializerFunction())
+        // we have to drop the parameters which were consumed by GTK+
+        for ( i = 0; i < argcGTK; i++ )
         {
         {
-            printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" );
-            return 0;
+            while ( strcmp(wxConvUTF8.cWX2MB(argv_[i]), argvGTK[i]) != 0 )
+            {
+                memmove(argv_ + i, argv_ + i + 1, (argc_ - i)*sizeof(*argv_));
+            }
         }
 
         }
 
-        wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
-
-        wxObject *test_app = app_ini();
-
-        wxTheApp = (wxApp*) test_app;
+        argc_ = argcGTK;
+        argv_[argc_] = NULL;
     }
     }
+    //else: gtk_init() didn't modify our parameters
 
 
-    if (!wxTheApp)
+    // free our copy
+    for ( i = 0; i < argcGTK; i++ )
     {
     {
-        printf( "wxWindows error: wxTheApp == NULL\n" );
-        return 0;
+        free(argvGTK[i]);
     }
 
     }
 
-    wxTheApp->argc = argc;
-    wxTheApp->argv = argv;
-
-    char name[200];
-    strcpy( name, argv[0] );
-    strcpy( name, wxFileNameFromPath(name) );
-    wxStripExtension( name );
-    wxTheApp->SetAppName( name );
-  
-    gtk_set_locale();
-  
-    gtk_init( &argc, &argv );
+    delete [] argvGTK;
+#else // !wxUSE_UNICODE
+    // gtk_init() shouldn't actually change argv_ itself (just its contents) so
+    // it's ok to pass pointer to it
+    init_result = gtk_init_check( &argc_, &argv_ );
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
 
-    GdkColormap *cmap = gdk_colormap_new( gdk_visual_get_system(), TRUE );
+    // update internal arg[cv] as GTK+ may have removed processed options:
+    this->argc = argc_;
+    this->argv = argv_;
 
 
-    for (int i = 0; i < 64; i++)
+    if ( m_traits )
     {
     {
-        GdkColor col;
-        col.red    = g_palette[i*3 + 0] << 8;
-        col.green  = g_palette[i*3 + 1] << 8;
-        col.blue   = g_palette[i*3 + 2] << 8;
-        col.pixel  = 0;
-    
-        gdk_color_alloc( cmap, &col );
+        // if there are still GTK+ standard options unparsed in the command
+        // line, it means that they were not syntactically correct and GTK+
+        // already printed a warning on the command line and we should now
+        // exit:
+        wxArrayString opt, desc;
+        m_traits->GetStandardCmdLineOptions(opt, desc);
+
+        for ( i = 0; i < argc_; i++ )
+        {
+            // leave just the names of the options with values
+            const wxString str = wxString(argv_[i]).BeforeFirst('=');
+
+            for ( size_t j = 0; j < opt.size(); j++ )
+            {
+                // remove the leading spaces from the option string as it does
+                // have them
+                if ( opt[j].Trim(false).BeforeFirst('=') == str )
+                {
+                    // a GTK+ option can be left on the command line only if
+                    // there was an error in (or before, in another standard
+                    // options) it, so abort, just as we do if incorrect
+                    // program option is given
+                    wxLogError(_("Invalid GTK+ command line option, use \"%s --help\""),
+                               argv_[0]);
+                    return false;
+                }
+            }
+        }
     }
     }
-  
-    gtk_widget_push_colormap( cmap );
-  
-    gtk_widget_set_default_colormap( cmap );
 
 
-    wxApp::CommonInit();
-
-    wxModule::RegisterModules();
-    if (!wxModule::InitializeModules()) return FALSE;
-    
-    wxTheApp->OnInitGui();
+    if ( !init_result )
+    {
+        wxLogError(_("Unable to initialize GTK+, is DISPLAY set properly?"));
+        return false;
+    }
 
 
-    // Here frames insert themselves automatically
-    // into wxTopLevelWindows by getting created
-    // in OnInit().
+    // we cannot enter threads before gtk_init is done
+    gdk_threads_enter();
 
 
-    if (!wxTheApp->OnInit()) return 0;
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif
 
 
-    wxTheApp->m_initialized = (wxTopLevelWindows.Number() > 0);
+    // make sure GtkWidget type is loaded, idle hooks need it
+    g_type_class_ref(GTK_TYPE_WIDGET);
+    WakeUpIdle();
 
 
-    int retValue = 0;
+    return true;
+}
 
 
-    if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun();
+void wxApp::CleanUp()
+{
+    if (m_idleSourceId != 0)
+        g_source_remove(m_idleSourceId);
 
 
-    wxTheApp->DeletePendingObjects();
+    // release reference acquired by Initialize()
+    g_type_class_unref(g_type_class_peek(GTK_TYPE_WIDGET));
 
 
-    wxTheApp->OnExit();
+    gdk_threads_leave();
 
 
-    wxModule::CleanUpModules();
-  
-    wxApp::CommonCleanUp();
+    wxAppBase::CleanUp();
+}
 
 
-    delete wxTheApp;
-    wxTheApp = (wxApp*) NULL;
+void wxApp::WakeUpIdle()
+{
+#if wxUSE_THREADS
+    wxMutexLocker lock(m_idleMutex);
+#endif
+    if (m_idleSourceId == 0)
+        m_idleSourceId = g_idle_add_full(G_PRIORITY_LOW, wxapp_idle_callback, NULL, NULL);
+}
 
 
-    wxClassInfo::CleanUpClasses();
-  
-    delete[] wxBuffer;
-  
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
-  
-    if (wxDebugContext::CountObjectsLeft() > 0)
+// Checking for pending events requires first removing our idle source,
+// otherwise it will cause the check to always return true.
+bool wxApp::EventsPending()
+{
+#if wxUSE_THREADS
+    wxMutexLocker lock(m_idleMutex);
+#endif
+    if (m_idleSourceId != 0)
     {
     {
-        wxLogDebug("There were memory leaks.\n");
-        wxDebugContext::Dump();
-        wxDebugContext::PrintStatistics();
+        g_source_remove(m_idleSourceId);
+        m_idleSourceId = 0;
+        wx_add_idle_hooks();
     }
     }
-//  wxDebugContext::SetStream(NULL, NULL);
-  
-#endif
-
-    wxLog *oldLog = wxLog::SetActiveTarget( NULL );
-    if (oldLog) delete oldLog;
-
-    return retValue;
+    return gtk_events_pending() != 0;
 }
 
 }
 
-//-----------------------------------------------------------------------------
-// main()
-//-----------------------------------------------------------------------------
-
-#if defined(AIX) || defined(AIX4) || defined(____HPUX__) || defined(NOMAIN)
+void wxApp::OnAssertFailure(const wxChar *file,
+                            int line,
+                            const wxChar* func,
+                            const wxChar* cond,
+                            const wxChar *msg)
+{
+    // there is no need to do anything if asserts are disabled in this build
+    // anyhow
+#if wxDEBUG_LEVEL
+    // block wx idle events while assert dialog is showing
+    m_isInAssert = true;
+
+    wxAppBase::OnAssertFailure(file, line, func, cond, msg);
+
+    m_isInAssert = false;
+#else // !wxDEBUG_LEVEL
+    wxUnusedVar(file);
+    wxUnusedVar(line);
+    wxUnusedVar(func);
+    wxUnusedVar(cond);
+    wxUnusedVar(msg);
+#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
+}
 
 
- // main in IMPLEMENT_WX_MAIN in IMPLEMENT_APP in app.h
+#if wxUSE_THREADS
+void wxGUIAppTraits::MutexGuiEnter()
+{
+    gdk_threads_enter();
+}
 
 
-#else
+void wxGUIAppTraits::MutexGuiLeave()
+{
+    gdk_threads_leave();
+}
+#endif // wxUSE_THREADS
 
 
-  int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
+/* static */
+bool wxApp::GTKIsUsingGlobalMenu()
+{
+    static int s_isUsingGlobalMenu = -1;
+    if ( s_isUsingGlobalMenu == -1 )
+    {
+        // Currently we just check for this environment variable because this
+        // is how support for the global menu is implemented under Ubuntu.
+        //
+        // If we ever get false positives, we could also check for
+        // XDG_CURRENT_DESKTOP env var being set to "Unity".
+        wxString proxy;
+        s_isUsingGlobalMenu = wxGetEnv("UBUNTU_MENUPROXY", &proxy) &&
+                                !proxy.empty() && proxy != "0";
+    }
 
 
-#endif
+    return s_isUsingGlobalMenu == 1;
+}
 
 
+#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+// Maemo-specific method: get the main program object
+HildonProgram *wxApp::GetHildonProgram()
+{
+    return hildon_program_get_instance();
+}
 
 
+#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
wxWidgets (Impactor)