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Fix crash in wxDC::GetMultiLineTextExtent() after last commit.
[wxWidgets.git] / src / gtk / app.cpp
diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 965f9967f221c4ca1f57f1f4dba9b3110ca13314..823da625a20580bf39a6fe6aae266f9549d09e2a 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:          $Id$
@@ -7,699 +7,535 @@
 // 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/dialog.h"
-
-#if wxUSE_WX_RESOURCES
-    #include "wx/resource.h"
-#endif
 
 
-#include "wx/module.h"
-#include "wx/image.h"
-
-#if wxUSE_THREADS
-#include "wx/thread.h"
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/memory.h"
+    #include "wx/font.h"
 #endif
 
 #endif
 
-#include <unistd.h>
+#include "wx/thread.h"
 
 
-#include <glib.h>
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#ifdef __WXGPE__
+    #include <gpe/init.h>
+#endif
 
 
-#include "wx/gtk/win_gtk.h"
+#include "wx/apptrait.h"
+#include "wx/fontmap.h"
 
 
-//-----------------------------------------------------------------------------
-// global data
-//-----------------------------------------------------------------------------
+#if wxUSE_LIBHILDON
+    #include <hildon-widgets/hildon-program.h>
+#endif // wxUSE_LIBHILDON
 
 
-wxApp *wxTheApp = (wxApp *)  NULL;
-wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
+#if wxUSE_LIBHILDON2
+    #include <hildon/hildon.h>
+#endif // wxUSE_LIBHILDON2
 
 
-extern bool g_isIdle;
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
-// local functions
+// link GnomeVFS
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 
-/* forward declaration */
-gint   wxapp_idle_callback( gpointer WXUNUSED(data) );
-void   wxapp_install_idle_handler();
-
-#if wxUSE_THREADS
-gint   wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) );
+#if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS
+    #include "wx/link.h"
+    wxFORCE_LINK_MODULE(gnome_vfs)
 #endif
 
 //-----------------------------------------------------------------------------
 #endif
 
 //-----------------------------------------------------------------------------
-// wxExit
+// local functions
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 
-void wxExit()
+// One-shot signal emission hook, to install idle handler.
+extern "C" {
+static gboolean
+wx_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer data)
 {
 {
-    gtk_main_quit();
+    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;
+}
 }
 
 }
 
-//-----------------------------------------------------------------------------
-// wxYield
-//-----------------------------------------------------------------------------
-
-bool wxYield()
+// Add signal emission hooks, to re-install idle handler when needed.
+static void wx_add_idle_hooks()
 {
 {
-    bool has_idle = (wxTheApp->m_idleTag != 0);
-
-    if (has_idle)
+    // "event" hook
     {
     {
-        /* We need to temporarily remove idle callbacks or the loop will
-           never finish. */
-        gtk_idle_remove( wxTheApp->m_idleTag );
-        wxTheApp->m_idleTag = 0;
+        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);
+        }
     }
     }
-
-    while (gtk_events_pending())
-        gtk_main_iteration();
-
-    /* it's necessary to call ProcessIdle() to update the frames sizes which
-       might have been changed (it also will update other things set from
-       OnUpdateUI() which is a nice (and desired) side effect) */
-    while (wxTheApp->ProcessIdle()) { }
-
-    if (has_idle)
+    // "size_allocate" hook
+    // Needed to match the behaviour of the old idle system,
+    // but probably not necessary.
     {
     {
-        /* re-add idle handler */
-        wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+        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);
+        }
     }
     }
-
-    return TRUE;
 }
 
 }
 
-//-----------------------------------------------------------------------------
-// wxWakeUpIdle
-//-----------------------------------------------------------------------------
+extern "C" {
+static gboolean wxapp_idle_callback(gpointer)
+{
+    return wxTheApp->DoIdle();
+}
+}
 
 
-void wxWakeUpIdle()
+bool wxApp::DoIdle()
 {
 {
+    guint id_save;
+    {
+        // 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
 #if wxUSE_THREADS
-    if (!wxThread::IsMain())
-        gdk_threads_enter();
+        wxMutexLocker lock(m_idleMutex);
 #endif
 #endif
-
-    if (g_isIdle) 
-        wxapp_install_idle_handler();
-    
-#if wxUSE_THREADS
-    if (!wxThread::IsMain())
-        gdk_threads_leave();
+        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
 #endif
-}
-
-//-----------------------------------------------------------------------------
-// local functions
-//-----------------------------------------------------------------------------
-
-gint wxapp_idle_callback( gpointer WXUNUSED(data) )
-{
-    if (!wxTheApp) return TRUE;
+    }
 
 
-    // when getting called from GDK's time-out handler
-    // we are no longer within GDK's grab on the GUI
-    // thread so we must lock it here ourselves
     gdk_threads_enter();
     gdk_threads_enter();
+    bool needMore;
+    do {
+        ProcessPendingEvents();
 
 
-    /* sent idle event to all who request them */
-    while (wxTheApp->ProcessIdle()) { }
-
-    /* we don't want any more idle events until the next event is
-       sent to wxGTK */
-    gtk_idle_remove( wxTheApp->m_idleTag );
-    wxTheApp->m_idleTag = 0;
-
-    /* indicate that we are now in idle mode - even so deeply
-       in idle mode that we don't get any idle events anymore.
-       this is like wxMSW where an idle event is sent only
-       once each time after the event queue has been completely
-       emptied */
-    g_isIdle = TRUE;
-
-    // release lock again
+        needMore = ProcessIdle();
+    } while (needMore && gtk_events_pending() == 0);
     gdk_threads_leave();
 
     gdk_threads_leave();
 
-    return TRUE;
-}
-
-void wxapp_install_idle_handler()
-{
-    wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
-
-    /* This routine gets called by all event handlers
-       indicating that the idle is over. It may also
-       get called from other thread for sending events
-       to the main thread (and processing these in
-       idle time). */
-
-    wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
-
-    g_isIdle = FALSE;
-}
-
 #if wxUSE_THREADS
 #if wxUSE_THREADS
+    wxMutexLocker lock(m_idleMutex);
+#endif
+    // if a new idle source was added during ProcessIdle
+    if (m_idleSourceId != 0)
+    {
+        // remove it
+        g_source_remove(m_idleSourceId);
+        m_idleSourceId = 0;
+    }
 
 
-void wxapp_install_thread_wakeup()
-{
-    if (wxTheApp->m_wakeUpTimerTag) return;
+    // Pending events can be added asynchronously,
+    // need to keep idle source if any have appeared
+    if (HasPendingEvents())
+        needMore = true;
 
 
-    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );
+    // if more idle processing requested
+    if (needMore)
+    {
+        // keep this source installed
+        m_idleSourceId = id_save;
+        return true;
+    }
+    // add hooks and remove this source
+    wx_add_idle_hooks();
+    return false;
 }
 
 }
 
-void wxapp_uninstall_thread_wakeup()
-{
-    if (!wxTheApp->m_wakeUpTimerTag) return;
-
-    gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
-    wxTheApp->m_wakeUpTimerTag = 0;
-}
+//-----------------------------------------------------------------------------
+// Access to the root window global
+//-----------------------------------------------------------------------------
 
 
-gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
+GtkWidget* wxGetRootWindow()
 {
 {
-    // when getting called from GDK's time-out handler
-    // we are no longer within GDK's grab on the GUI
-    // thread so we must lock it here ourselves
-    
-    gdk_threads_enter();
-
-    wxapp_uninstall_thread_wakeup();
-
-    // unblock other threads wishing to do some GUI things
-    wxMutexGuiLeave();
+    static GtkWidget *s_RootWindow = NULL;
 
 
-    // wake up other threads
-    wxUsleep( 1 );
-
-    // block other thread again
-    wxMutexGuiEnter();
-
-    wxapp_install_thread_wakeup();
-
-    // release lock again
-    gdk_threads_leave();
-    
-    return TRUE;
+    if (s_RootWindow == NULL)
+    {
+        s_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+        gtk_widget_realize( s_RootWindow );
+    }
+    return s_RootWindow;
 }
 
 }
 
-#endif // wxUSE_THREADS
-
 //-----------------------------------------------------------------------------
 // wxApp
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 
 //-----------------------------------------------------------------------------
 // wxApp
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 
-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
-    EVT_IDLE(wxApp::OnIdle)
-END_EVENT_TABLE()
-
 wxApp::wxApp()
 {
 wxApp::wxApp()
 {
-    wxTheApp = this;
-
-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
-
-    m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
-
-#if wxUSE_THREADS
-    m_wakeUpTimerTag = 0;
-    wxapp_install_thread_wakeup();
-#endif
-
-    m_colorCube = (unsigned char*) NULL;
+    m_isInAssert = false;
+    m_idleSourceId = 0;
 }
 
 wxApp::~wxApp()
 {
 }
 
 wxApp::~wxApp()
 {
-    if (m_idleTag) gtk_idle_remove( m_idleTag );
+}
 
 
-#if wxUSE_THREADS
-    wxapp_uninstall_thread_wakeup();
-#endif
+bool wxApp::SetNativeTheme(const wxString& theme)
+{
+    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
+    {
+        wxLogWarning("Theme \"%s\" not available.", theme);
+
+        return false;
+    }
+
+    gtk_rc_reparse_all_for_settings(gtk_settings_get_default(), TRUE);
 
 
-    if (m_colorCube) free(m_colorCube);
+    return true;
 }
 
 bool wxApp::OnInitGui()
 {
 }
 
 bool wxApp::OnInitGui()
 {
-    GdkVisual *visual = gdk_visual_get_system();
+    if ( !wxAppBase::OnInitGui() )
+        return false;
 
 
-    /* on some machines, the default visual is just 256 colours, so
-       we make sure we get the best. this can sometimes be wasteful,
-       of course, but what do these guys pay $30.000 for? */
-/*
-    if (gdk_visual_get_best() != gdk_visual_get_system())
+#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 = gdk_visual_get_best();
-        gtk_widget_set_default_visual( vis );
+        GdkVisual* vis = gtk_widget_get_default_visual();
 
         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
         gtk_widget_set_default_colormap( colormap );
 
         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
         gtk_widget_set_default_colormap( colormap );
-
-        visual = vis;
     }
     }
-*/
-
-    /* Nothing to do for 15, 16, 24, 32 bit displays */
-    if (visual->depth > 8) return TRUE;
-
-    /* initialize color cube for 8-bit color reduction dithering */
-
-    GdkColormap *cmap = gtk_widget_get_default_colormap();
-
-    m_colorCube = (unsigned char*)malloc(32 * 32 * 32);
-
-    for (int r = 0; r < 32; r++)
+    else
     {
     {
-        for (int g = 0; g < 32; g++)
+        // 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)
         {
         {
-            for (int b = 0; b < 32; b++)
+            if (m_forceTrueColour)
             {
             {
-                int rr = (r << 3) | (r >> 2);
-                int gg = (g << 3) | (g >> 2);
-                int bb = (b << 3) | (b >> 2);
-
-                int index = -1;
-
-                GdkColor *colors = cmap->colors;
-                if (colors)
+                GdkVisual* visual = gdk_visual_get_best_with_both( 24, GDK_VISUAL_TRUE_COLOR );
+                if (!visual)
                 {
                 {
-                    int max = 3 * 65536;
-
-                    for (int i = 0; i < cmap->size; i++)
-                    {
-                        int rdiff = ((rr << 8) - colors[i].red);
-                        int gdiff = ((gg << 8) - colors[i].green);
-                        int bdiff = ((bb << 8) - colors[i].blue);
-                        int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
-                        if (sum < max)
-                        {
-                            index = i; max = sum;
-                        }
-                    }
+                    wxLogError(wxT("Unable to initialize TrueColor visual."));
+                    return false;
                 }
                 }
-                else
+                GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
+                gtk_widget_set_default_colormap( colormap );
+            }
+            else
+            {
+                if (gdk_visual_get_best() != gdk_visual_get_system())
                 {
                 {
-#if (GTK_MINOR_VERSION > 0)
-                    /* assume 8-bit true or static colors. this really
-                       exists. */
-                    GdkVisual* vis = gdk_colormap_get_visual( cmap );
-                    index = (r >> (5 - vis->red_prec)) << vis->red_shift;
-                    index |= (g >> (5 - vis->green_prec)) << vis->green_shift;
-                    index |= (b >> (5 - vis->blue_prec)) << vis->blue_shift;
-#else
-                    wxFAIL_MSG( wxT("Unsupported graphics hardware") );
-#endif
+                    GdkVisual* visual = gdk_visual_get_best();
+                    GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
+                    gtk_widget_set_default_colormap( colormap );
                 }
                 }
-                m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }
         }
     }
             }
         }
     }
+#endif
 
 
-    return TRUE;
-}
-
-bool wxApp::ProcessIdle()
-{
-    wxIdleEvent event;
-    event.SetEventObject( this );
-    ProcessEvent( event );
-
-    return event.MoreRequested();
-}
-
-void wxApp::OnIdle( wxIdleEvent &event )
-{
-    static bool s_inOnIdle = FALSE;
-
-    /* Avoid recursion (via ProcessEvent default case) */
-    if (s_inOnIdle)
-        return;
-
-    s_inOnIdle = TRUE;
-
-    /* Resend in the main thread events which have been prepared in other
-       threads */
-    ProcessPendingEvents();
-
-    /* 'Garbage' collection of windows deleted with Close(). */
-    DeletePendingObjects();
-
-    /* flush the logged messages if any */
-#if wxUSE_LOG
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
-#endif // wxUSE_LOG
-
-    /* Send OnIdle events to all windows */
-    bool needMore = SendIdleEvents();
-
-    if (needMore)
-        event.RequestMore(TRUE);
-
-    s_inOnIdle = FALSE;
-}
-
-bool wxApp::SendIdleEvents()
-{
-    bool needMore = FALSE;
-
-    wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
-    while (node)
+#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
+    if ( !GetHildonProgram() )
     {
     {
-        wxWindow* win = node->GetData();
-        if (SendIdleEvents(win))
-            needMore = TRUE;
-        node = node->GetNext();
+        wxLogError(_("Unable to initialize Hildon program"));
+        return false;
     }
     }
+#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 
 
-    return needMore;
+    return true;
 }
 
 }
 
-bool wxApp::SendIdleEvents( wxWindow* win )
+// use unusual names for the parameters to avoid conflict with wxApp::arg[cv]
+bool wxApp::Initialize(int& argc_, wxChar **argv_)
 {
 {
-    bool needMore = FALSE;
-
-    wxIdleEvent event;
-    event.SetEventObject(win);
+    if ( !wxAppBase::Initialize(argc_, argv_) )
+        return false;
 
 
-    win->ProcessEvent(event);
-
-    win->OnInternalIdle();
-
-    if (event.MoreRequested())
-        needMore = TRUE;
-
-    wxNode* node = win->GetChildren().First();
-    while (node)
+#if wxUSE_THREADS
+    if (!g_thread_supported())
     {
     {
-        wxWindow* win = (wxWindow*) node->Data();
-        if (SendIdleEvents(win))
-            needMore = TRUE;
-
-        node = node->Next();
+        g_thread_init(NULL);
+        gdk_threads_init();
     }
     }
-    return needMore ;
-}
-
-int wxApp::MainLoop()
-{
-    gtk_main();
-    return 0;
-}
-
-void wxApp::ExitMainLoop()
-{
-    if (gtk_main_level() > 0)
-        gtk_main_quit();
-}
-
-bool wxApp::Initialized()
-{
-    return m_initialized;
-}
-
-bool wxApp::Pending()
-{
-    return (gtk_events_pending() > 0);
-}
-
-void wxApp::Dispatch()
-{
-    gtk_main_iteration();
-}
+#endif // wxUSE_THREADS
 
 
-void wxApp::DeletePendingObjects()
-{
-    wxNode *node = wxPendingDelete.First();
-    while (node)
+    // 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 wxUSE_INTL
+    if (encName.empty())
     {
     {
-        wxObject *obj = (wxObject *)node->Data();
-
-        delete obj;
+        // (2) if a non default locale is set, assume that the user wants his
+        //     filenames in this locale too
+        encName = wxLocale::GetSystemEncodingName().Upper();
 
 
-        if (wxPendingDelete.Find(obj))
-            delete node;
+        // 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();
+            }
+        }
 
 
-        node = wxPendingDelete.First();
+        // (3) finally use UTF-8 by default
+        if ( encName.empty() )
+            encName = wxT("UTF-8");
+        wxSetEnv(wxT("G_FILENAME_ENCODING"), encName);
     }
     }
-}
-
-bool wxApp::Initialize()
-{
-    wxBuffer = new wxChar[BUFSIZ + 512];
-
-    wxClassInfo::InitializeClasses();
-
-    wxSystemSettings::Init();
-
-    // GL: I'm annoyed ... I don't know where to put this and I don't want to
-    // create a module for that as it's part of the core.
-#if wxUSE_THREADS
-    wxPendingEvents = new wxList();
-    wxPendingEventsLocker = new wxCriticalSection();
-#endif
-
-/*
-    wxTheFontNameDirectory =  new wxFontNameDirectory;
-    wxTheFontNameDirectory->Initialize();
-*/
-
-    wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING );
-    wxTheColourDatabase->Initialize();
-
-    wxInitializeStockLists();
-    wxInitializeStockObjects();
-
-    wxModule::RegisterModules();
-    if (!wxModule::InitializeModules()) return FALSE;
-
-    return TRUE;
-}
-
-void wxApp::CleanUp()
-{
-    wxModule::CleanUpModules();
-
-    if (wxTheColourDatabase)
-        delete wxTheColourDatabase;
-    wxTheColourDatabase = (wxColourDatabase*) NULL;
-
-/*
-    if (wxTheFontNameDirectory) delete wxTheFontNameDirectory;
-    wxTheFontNameDirectory = (wxFontNameDirectory*) NULL;
-*/
-
-    wxDeleteStockObjects();
+#else
+    if (encName.empty())
+        encName = wxT("UTF-8");
 
 
-    wxDeleteStockLists();
+    // if wxUSE_INTL==0 it probably indicates that only "C" locale is supported
+    // by the program anyhow so prevent GTK+ from calling setlocale(LC_ALL, "")
+    // from gtk_init_check() as it does by default
+    gtk_disable_setlocale();
 
 
-    delete wxTheApp;
-    wxTheApp = (wxApp*) NULL;
+#endif // wxUSE_INTL
+    static wxConvBrokenFileNames fileconv(encName);
+    wxConvFileName = &fileconv;
+#endif // __UNIX__
 
 
-    // GL: I'm annoyed ... I don't know where to put this and I don't want to
-    // create a module for that as it's part of the core.
-#if wxUSE_THREADS
-    delete wxPendingEvents;
-    delete wxPendingEventsLocker;
-#endif
 
 
-    wxSystemSettings::Done();
+    bool init_result;
+    int i;
 
 
-    delete[] wxBuffer;
-
-    wxClassInfo::CleanUpClasses();
-
-    // check for memory leaks
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
-    if (wxDebugContext::CountObjectsLeft() > 0)
+#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++ )
     {
     {
-        wxLogDebug(wxT("There were memory leaks.\n"));
-        wxDebugContext::Dump();
-        wxDebugContext::PrintStatistics();
+        argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv_[i]));
     }
     }
-#endif // Debug
 
 
-#if wxUSE_LOG
-    // do this as the very last thing because everything else can log messages
-    wxLog::DontCreateOnDemand();
+    argvGTK[argc_] = NULL;
 
 
-    wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL );
-    if (oldLog)
-        delete oldLog;
-#endif // wxUSE_LOG
-}
-
-//-----------------------------------------------------------------------------
-// wxEntry
-//-----------------------------------------------------------------------------
+    int argcGTK = argc_;
 
 
-int wxEntry( int argc, char *argv[] )
-{
-#if wxUSE_THREADS
-    g_thread_init(NULL);
-#endif
-    
-    gtk_set_locale();
-
-#if wxUSE_WCHAR_T
-    if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
+#ifdef __WXGPE__
+    init_result = true;  // is there a _check() version of this?
+    gpe_application_init( &argcGTK, &argvGTK );
 #else
 #else
-    if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
+    init_result = gtk_init_check( &argcGTK, &argvGTK ) != 0;
 #endif
 #endif
+    wxUpdateLocaleIsUtf8();
 
 
-    gdk_threads_enter();
-
-    gtk_init( &argc, &argv );
-
-    wxSetDetectableAutoRepeat( TRUE );
-
-    if (!wxApp::Initialize())
+    if ( argcGTK != argc_ )
     {
     {
-        gdk_threads_leave();
-        return -1;
-    }
-
-    if (!wxTheApp)
-    {
-        wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
-                     wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") );
-
-        wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction();
-
-        wxObject *test_app = app_ini();
+        // we have to drop the parameters which were consumed by GTK+
+        for ( i = 0; i < argcGTK; i++ )
+        {
+            while ( strcmp(wxConvUTF8.cWX2MB(argv_[i]), argvGTK[i]) != 0 )
+            {
+                memmove(argv_ + i, argv_ + i + 1, (argc_ - i)*sizeof(*argv_));
+            }
+        }
 
 
-        wxTheApp = (wxApp*) test_app;
+        argc_ = argcGTK;
+        argv_[argc_] = NULL;
     }
     }
+    //else: gtk_init() didn't modify our parameters
 
 
-    wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") );
-
-    wxTheApp->argc = argc;
-#if wxUSE_UNICODE
-    wxTheApp->argv = new wxChar*[argc+1];
-    int mb_argc = 0;
-    while (mb_argc < argc) 
+    // free our copy
+    for ( i = 0; i < argcGTK; i++ )
     {
     {
-        wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
-        mb_argc++;
+        free(argvGTK[i]);
     }
     }
-    wxTheApp->argv[mb_argc] = (wxChar *)NULL;
-#else
-    wxTheApp->argv = argv;
-#endif
-
-    wxString name(wxFileNameFromPath(argv[0]));
-    wxStripExtension( name );
-    wxTheApp->SetAppName( name );
 
 
-    int retValue = 0;
+    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
 
 
-    if ( !wxTheApp->OnInitGui() )
-        retValue = -1;
+    // update internal arg[cv] as GTK+ may have removed processed options:
+    this->argc = argc_;
+    this->argv = argv_;
 
 
-    // Here frames insert themselves automatically into wxTopLevelWindows by
-    // getting created in OnInit().
-    if ( retValue == 0 )
+    if ( m_traits )
     {
     {
-        if ( !wxTheApp->OnInit() )
-            retValue = -1;
-    }
-
-    if ( retValue == 0 )
-    {
-        /* delete pending toplevel windows (typically a single
-           dialog) so that, if there isn't any left, we don't
-           call OnRun() */
-        wxTheApp->DeletePendingObjects();
-
-        wxTheApp->m_initialized = wxTopLevelWindows.GetCount() != 0;
-
-        if (wxTheApp->Initialized())
+        // 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++ )
         {
         {
-            retValue = wxTheApp->OnRun();
+            // leave just the names of the options with values
+            const wxString str = wxString(argv_[i]).BeforeFirst('=');
 
 
-            wxWindow *topWindow = wxTheApp->GetTopWindow();
-            if (topWindow)
+            for ( size_t j = 0; j < opt.size(); j++ )
             {
             {
-                /* Forcibly delete the window. */
-                if (topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
-                    topWindow->IsKindOf(CLASSINFO(wxDialog)) )
+                // remove the leading spaces from the option string as it does
+                // have them
+                if ( opt[j].Trim(false).BeforeFirst('=') == str )
                 {
                 {
-                    topWindow->Close( TRUE );
-                    wxTheApp->DeletePendingObjects();
-                }
-                else
-                {
-                    delete topWindow;
-                    wxTheApp->SetTopWindow( (wxWindow*) NULL );
+                    // 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;
                 }
             }
                 }
             }
-            wxTheApp->OnExit();
         }
     }
 
         }
     }
 
-#if wxUSE_LOG
-    // flush the logged messages if any
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
+    if ( !init_result )
+    {
+        wxLogError(_("Unable to initialize GTK+, is DISPLAY set properly?"));
+        return false;
+    }
 
 
-    // continuing to use user defined log target is unsafe from now on because
-    // some resources may be already unavailable, so replace it by something
-    // more safe
-    wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr);
-    if ( oldlog )
-        delete oldlog;
-#endif // wxUSE_LOG
+    // we cannot enter threads before gtk_init is done
+    gdk_threads_enter();
+
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif
+
+    // make sure GtkWidget type is loaded, idle hooks need it
+    g_type_class_ref(GTK_TYPE_WIDGET);
+    WakeUpIdle();
 
 
-    wxApp::CleanUp();
+    return true;
+}
+
+void wxApp::CleanUp()
+{
+    if (m_idleSourceId != 0)
+        g_source_remove(m_idleSourceId);
+
+    // release reference acquired by Initialize()
+    g_type_class_unref(g_type_class_peek(GTK_TYPE_WIDGET));
 
     gdk_threads_leave();
 
 
     gdk_threads_leave();
 
-    return retValue;
+    wxAppBase::CleanUp();
 }
 
 }
 
-#include "wx/gtk/info.xpm"
-#include "wx/gtk/error.xpm"
-#include "wx/gtk/question.xpm"
-#include "wx/gtk/warning.xpm"
+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);
+}
 
 
-wxIcon
-wxApp::GetStdIcon(int which) const
+// Checking for pending events requires first removing our idle source,
+// otherwise it will cause the check to always return true.
+bool wxApp::EventsPending()
 {
 {
-    switch(which)
+#if wxUSE_THREADS
+    wxMutexLocker lock(m_idleMutex);
+#endif
+    if (m_idleSourceId != 0)
     {
     {
-        case wxICON_INFORMATION:
-            return wxIcon(info_xpm);
+        g_source_remove(m_idleSourceId);
+        m_idleSourceId = 0;
+        wx_add_idle_hooks();
+    }
+    return gtk_events_pending() != 0;
+}
 
 
-        case wxICON_QUESTION:
-            return wxIcon(question_xpm);
+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
+}
 
 
-        case wxICON_EXCLAMATION:
-            return wxIcon(warning_xpm);
+#if wxUSE_THREADS
+void wxGUIAppTraits::MutexGuiEnter()
+{
+    gdk_threads_enter();
+}
 
 
-        default:
-            wxFAIL_MSG(wxT("requested non existent standard icon"));
-            // still fall through
+void wxGUIAppTraits::MutexGuiLeave()
+{
+    gdk_threads_leave();
+}
+#endif // wxUSE_THREADS
 
 
-        case wxICON_HAND:
-            return wxIcon(error_xpm);
-    }
+#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)