Applied [ 654253 ] wxGTK: fix to wxGetMousePosition()

[wxWidgets.git] / src / gtk1 / app.cpp

diff --git a/src/gtk1/app.cpp b/src/gtk1/app.cpp
index ba0fd8ed6b4f902579a1d912ad66df54f84d08c9..eccbb52d0a7ea32e83d2f6e738a56f94e6da69d9 100644 (file)
--- a/src/gtk1/app.cpp
+++ b/src/gtk1/app.cpp
@@ -11,6 +11,10 @@
     #pragma implementation "app.h"
 #endif
 
     #pragma implementation "app.h"
 #endif
 

+#ifdef __VMS
+#include <vms_jackets.h>
+#endif
+

 #include "wx/app.h"
 #include "wx/gdicmn.h"
 #include "wx/utils.h"
 #include "wx/app.h"
 #include "wx/gdicmn.h"
 #include "wx/utils.h"


@@ -20,6 +24,9 @@
 #include "wx/font.h"
 #include "wx/settings.h"
 #include "wx/dialog.h"
 #include "wx/font.h"
 #include "wx/settings.h"
 #include "wx/dialog.h"

+#include "wx/msgdlg.h"
+#include "wx/file.h"
+#include "wx/filename.h"

 
 #if wxUSE_WX_RESOURCES
     #include "wx/resource.h"
 
 #if wxUSE_WX_RESOURCES
     #include "wx/resource.h"


@@ -28,18 +35,47 @@
 #include "wx/module.h"
 #include "wx/image.h"
 
 #include "wx/module.h"
 #include "wx/image.h"
 

+#ifdef __WXUNIVERSAL__
+    #include "wx/univ/theme.h"
+    #include "wx/univ/renderer.h"
+#endif
+

 #if wxUSE_THREADS
 #if wxUSE_THREADS

-#include "wx/thread.h"
+    #include "wx/thread.h"

 #endif
 
 #include <unistd.h>
 
 #endif
 
 #include <unistd.h>
 

-#include <glib.h>
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#ifdef HAVE_POLL
+    #if defined(__VMS)
+        #include <poll.h>
+    #else
+        // bug in the OpenBSD headers: at least in 3.1 there is no extern "C"
+        // in neither poll.h nor sys/poll.h which results in link errors later
+        #ifdef __OPENBSD__
+            extern "C"
+            {
+        #endif
+
+        #include <sys/poll.h>
+
+        #ifdef __OPENBSD__
+            };
+        #endif
+    #endif // platform
+#else // !HAVE_POLL
+    // we implement poll() ourselves using select() which is supposed exist in
+    // all modern Unices
+    #include <sys/types.h>
+    #include <sys/time.h>
+    #include <unistd.h>
+#endif // HAVE_POLL/!HAVE_POLL

 
 #include "wx/gtk/win_gtk.h"
 
 
 #include "wx/gtk/win_gtk.h"
 

+#include <gtk/gtk.h>
+
+

 //-----------------------------------------------------------------------------
 // global data
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // global data
 //-----------------------------------------------------------------------------


@@ -47,19 +83,18 @@
 wxApp *wxTheApp = (wxApp *)  NULL;
 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 
 wxApp *wxTheApp = (wxApp *)  NULL;
 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 

-extern bool g_isIdle;
+bool   g_mainThreadLocked = FALSE;
+gint   g_pendingTag = 0;
+
+static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// local functions
+// idle system

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-/* forward declaration */
-gint   wxapp_idle_callback( gpointer WXUNUSED(data) );
-void   wxapp_install_idle_handler();
+extern bool g_isIdle;

 
 

-#if wxUSE_THREADS
-gint   wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) );
-#endif
+void wxapp_install_idle_handler();

 
 //-----------------------------------------------------------------------------
 // wxExit
 
 //-----------------------------------------------------------------------------
 // wxExit


@@ -74,31 +109,61 @@ void wxExit()
 // wxYield
 //-----------------------------------------------------------------------------
 
 // wxYield
 //-----------------------------------------------------------------------------
 

-bool wxYield()
+// not static because used by textctrl.cpp
+//
+// MT-FIXME
+bool wxIsInsideYield = FALSE;
+
+bool wxApp::Yield(bool onlyIfNeeded)

 {
 {

-    bool has_idle = (wxTheApp->m_idleTag != 0);
+    if ( wxIsInsideYield )
+    {
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return FALSE;
+    }
+
+#if wxUSE_THREADS
+    if ( !wxThread::IsMain() )
+    {
+        // can't call gtk_main_iteration() from other threads like this
+        return TRUE;
+    }
+#endif // wxUSE_THREADS

 
 

-    if (has_idle)
+    wxIsInsideYield = TRUE;
+
+    if (!g_isIdle)

     {
     {

-        /* We need to temporarily remove idle callbacks or the loop will
-           never finish. */
-        gtk_idle_remove( wxTheApp->m_idleTag );
-        wxTheApp->m_idleTag = 0;
+        // We need to remove idle callbacks or the loop will
+        // never finish.
+        gtk_idle_remove( m_idleTag );
+        m_idleTag = 0;
+        g_isIdle = TRUE;

     }
 
     }
 

+    // disable log flushing from here because a call to wxYield() shouldn't
+    // normally result in message boxes popping up &c
+    wxLog::Suspend();
+

     while (gtk_events_pending())
         gtk_main_iteration();
 
     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()) { }
+    // 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). But we
+    // call ProcessIdle() only once since this is not meant for longish
+    // background jobs (controlled by wxIdleEvent::RequestMore() and the
+    // return value of Processidle().
+    ProcessIdle();

 
 

-    if (has_idle)
-    {
-        /* re-add idle handler */
-        wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
-    }
+    // let the logs be flashed again
+    wxLog::Resume();
+
+    wxIsInsideYield = FALSE;

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -114,9 +179,9 @@ void wxWakeUpIdle()
         wxMutexGuiEnter();
 #endif
 
         wxMutexGuiEnter();
 #endif
 

-    if (g_isIdle) 
+    if (g_isIdle)

         wxapp_install_idle_handler();
         wxapp_install_idle_handler();

-    
+

 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiLeave();
 #if wxUSE_THREADS
     if (!wxThread::IsMain())
         wxMutexGuiLeave();


@@ -127,96 +192,204 @@ void wxWakeUpIdle()
 // local functions
 //-----------------------------------------------------------------------------
 
 // local functions
 //-----------------------------------------------------------------------------
 

-gint wxapp_idle_callback( gpointer WXUNUSED(data) )
+// the callback functions must be extern "C" to comply with GTK+ declarations
+extern "C"
+{
+
+static gint wxapp_pending_callback( gpointer WXUNUSED(data) )

 {
     if (!wxTheApp) return TRUE;
 
 {
     if (!wxTheApp) return TRUE;
 

-    // when getting called from GDK's time-out handler
+    // When getting called from GDK's time-out handler

     // we are no longer within GDK's grab on the GUI
     // we are no longer within GDK's grab on the GUI

-    // thread so we must lock it here ourselves
+    // thread so we must lock it here ourselves.

     gdk_threads_enter();
 
     gdk_threads_enter();
 

-    /* sent idle event to all who request them */
-    while (wxTheApp->ProcessIdle()) { }
+    // Sent idle event to all who request them.
+    wxTheApp->ProcessPendingEvents();

 
 

-    /* 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;
+    g_pendingTag = 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;
+    // Flush the logged messages if any.
+#if wxUSE_LOG
+    wxLog::FlushActive();
+#endif // wxUSE_LOG

 
 

-    // release lock again
+    // Release lock again

     gdk_threads_leave();
 
     gdk_threads_leave();
 

-    return TRUE;
+    // Return FALSE to indicate that no more idle events are
+    // to be sent (single shot instead of continuous stream)
+    return FALSE;

 }
 
 }
 

-void wxapp_install_idle_handler()
+static gint wxapp_idle_callback( gpointer WXUNUSED(data) )

 {
 {

-    wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
+    if (!wxTheApp)
+        return TRUE;
+
+#ifdef __WXDEBUG__
+    // don't generate the idle events while the assert modal dialog is shown,
+    // this completely confuses the apps which don't expect to be reentered
+    // from some safely-looking functions
+    if ( wxTheApp->IsInAssert() )
+    {
+        // But repaint the assertion message if necessary
+        if (wxTopLevelWindows.GetCount() > 0)
+        {
+            wxWindow* win = (wxWindow*) wxTopLevelWindows.Last()->Data();
+            if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog)))
+                win->OnInternalIdle();
+        }
+        return TRUE;
+    }
+#endif // __WXDEBUG__
+
+    // 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();
+
+    // Indicate that we are now in idle mode and event handlers
+    // will have to reinstall the idle handler again.
+    g_isIdle = TRUE;
+    wxTheApp->m_idleTag = 0;

 
 

-    /* 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). */
+    // Send idle event to all who request them as long as
+    // no events have popped up in the event queue.
+    while (wxTheApp->ProcessIdle() && (gtk_events_pending() == 0))
+        ;

 
 

-    wxTheApp->m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+    // Release lock again
+    gdk_threads_leave();

 
 

-    g_isIdle = FALSE;
+    // Return FALSE to indicate that no more idle events are
+    // to be sent (single shot instead of continuous stream).
+    return FALSE;

 }
 
 #if wxUSE_THREADS
 
 }
 
 #if wxUSE_THREADS
 

-void wxapp_install_thread_wakeup()
-{
-    if (wxTheApp->m_wakeUpTimerTag) return;
+#ifdef HAVE_POLL
+    #define wxPoll poll
+    #define wxPollFd pollfd
+#else // !HAVE_POLL

 
 

-    wxTheApp->m_wakeUpTimerTag = gtk_timeout_add( 50, wxapp_wakeup_timerout_callback, (gpointer) NULL );
-}
+typedef GPollFD wxPollFd;

 
 

-void wxapp_uninstall_thread_wakeup()
+int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout)

 {
 {

-    if (!wxTheApp->m_wakeUpTimerTag) return;
+    // convert timeout from ms to struct timeval (s/us)
+    timeval tv_timeout;
+    tv_timeout.tv_sec = timeout/1000;
+    tv_timeout.tv_usec = (timeout%1000)*1000;
+
+    // remember the highest fd used here
+    int fdMax = -1;
+
+    // and fill the sets for select()
+    fd_set readfds;
+    fd_set writefds;
+    fd_set exceptfds;
+    FD_ZERO(&readfds);
+    FD_ZERO(&writefds);
+    FD_ZERO(&exceptfds);
+
+    unsigned int i;
+    for ( i = 0; i < nfds; i++ )
+    {
+        wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") );
+
+        if ( ufds[i].events & G_IO_IN )
+            FD_SET(ufds[i].fd, &readfds);
+
+        if ( ufds[i].events & G_IO_PRI )
+            FD_SET(ufds[i].fd, &exceptfds);
+
+        if ( ufds[i].events & G_IO_OUT )
+            FD_SET(ufds[i].fd, &writefds);
+
+        if ( ufds[i].fd > fdMax )
+            fdMax = ufds[i].fd;
+    }
+
+    fdMax++;
+    int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout);

 
 

-    gtk_timeout_remove( wxTheApp->m_wakeUpTimerTag );
-    wxTheApp->m_wakeUpTimerTag = 0;
+    // translate the results back
+    for ( i = 0; i < nfds; i++ )
+    {
+        ufds[i].revents = 0;
+
+        if ( FD_ISSET(ufds[i].fd, &readfds ) )
+            ufds[i].revents |= G_IO_IN;
+
+        if ( FD_ISSET(ufds[i].fd, &exceptfds ) )
+            ufds[i].revents |= G_IO_PRI;
+
+        if ( FD_ISSET(ufds[i].fd, &writefds ) )
+            ufds[i].revents |= G_IO_OUT;
+    }
+
+    return res;

 }
 
 }
 

-gint wxapp_wakeup_timerout_callback( gpointer WXUNUSED(data) )
+#endif // HAVE_POLL/!HAVE_POLL
+
+static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )

 {
 {

-    // 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();
 

-    wxapp_uninstall_thread_wakeup();
-
-    // unblock other threads wishing to do some GUI things

     wxMutexGuiLeave();
     wxMutexGuiLeave();

+    g_mainThreadLocked = TRUE;

 
 

-    // wake up other threads
-    wxUsleep( 1 );
+    // we rely on the fact that glib GPollFD struct is really just pollfd but
+    // I wonder how wise is this in the long term (VZ)
+    gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout );

 
 

-    // block other thread again

     wxMutexGuiEnter();
     wxMutexGuiEnter();

+    g_mainThreadLocked = FALSE;

 
 

-    wxapp_install_thread_wakeup();
-
-    // release lock again

     gdk_threads_leave();
     gdk_threads_leave();

-    
-    return TRUE;
+
+    return res;

 }
 
 #endif // wxUSE_THREADS
 
 }
 
 #endif // wxUSE_THREADS
 

+} // extern "C"
+
+void wxapp_install_idle_handler()
+{
+    wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") );
+
+    g_isIdle = FALSE;
+
+    if (g_pendingTag == 0)
+        g_pendingTag = gtk_idle_add_priority( 900, wxapp_pending_callback, (gpointer) NULL );
+
+    // 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). Very low priority.
+    wxTheApp->m_idleTag = gtk_idle_add_priority( 1000, wxapp_idle_callback, (gpointer) NULL );
+}
+
+//-----------------------------------------------------------------------------
+// Access to the root window global
+//-----------------------------------------------------------------------------
+
+GtkWidget* wxGetRootWindow()
+{
+    if (gs_RootWindow == NULL)
+    {
+        gs_RootWindow = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+        gtk_widget_realize( gs_RootWindow );
+    }
+    return gs_RootWindow;
+}
+

 //-----------------------------------------------------------------------------
 // wxApp
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxApp
 //-----------------------------------------------------------------------------


@@ -229,56 +402,81 @@ END_EVENT_TABLE()
 
 wxApp::wxApp()
 {
 
 wxApp::wxApp()
 {

-    wxTheApp = this;
+    m_initialized = FALSE;
+#ifdef __WXDEBUG__
+    m_isInAssert = FALSE;
+#endif // __WXDEBUG__

 
 

-    m_topWindow = (wxWindow *) NULL;
-    m_exitOnFrameDelete = TRUE;
-
-    m_idleTag = gtk_idle_add( wxapp_idle_callback, (gpointer) NULL );
+    m_idleTag = 0;
+    wxapp_install_idle_handler();

 
 #if wxUSE_THREADS
 
 #if wxUSE_THREADS

-    m_wakeUpTimerTag = 0;
-    wxapp_install_thread_wakeup();
+    g_main_set_poll_func( wxapp_poll_func );

 #endif
 
     m_colorCube = (unsigned char*) NULL;
 #endif
 
     m_colorCube = (unsigned char*) NULL;

+
+    // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp
+    m_glVisualInfo = (void *) NULL;

 }
 
 wxApp::~wxApp()
 {
     if (m_idleTag) gtk_idle_remove( m_idleTag );
 
 }
 
 wxApp::~wxApp()
 {
     if (m_idleTag) gtk_idle_remove( m_idleTag );
 

-#if wxUSE_THREADS
-    wxapp_uninstall_thread_wakeup();
-#endif
-

     if (m_colorCube) free(m_colorCube);
 }
 
 bool wxApp::OnInitGui()
 {
     if (m_colorCube) free(m_colorCube);
 }
 
 bool wxApp::OnInitGui()
 {

+    if ( !wxAppBase::OnInitGui() )
+        return FALSE;
+

     GdkVisual *visual = gdk_visual_get_system();
 
     GdkVisual *visual = gdk_visual_get_system();
 

-    /* 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())
+    // if this is a wxGLApp (derived from wxApp), and we've already
+    // chosen a specific visual, then derive the GdkVisual from that
+    if (m_glVisualInfo != NULL)
+    {
+#ifdef __WXGTK20__
+        // seems gtk_widget_set_default_visual no longer exists?
+        GdkVisual* vis = gtk_widget_get_default_visual();
+#else
+        GdkVisual* vis = gdkx_visual_get(
+            ((XVisualInfo *) m_glVisualInfo) ->visualid );
+        gtk_widget_set_default_visual( vis );
+#endif
+
+        GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
+        gtk_widget_set_default_colormap( colormap );
+
+        visual = vis;
+    }
+
+    // On some machines, the default visual is just 256 colours, so
+    // we make sure we get the best. This can sometimes be wasteful.
+
+    else
+    if ((gdk_visual_get_best() != gdk_visual_get_system()) && (m_useBestVisual))

     {
     {

+#ifdef __WXGTK20__
+        /* seems gtk_widget_set_default_visual no longer exists? */
+        GdkVisual* vis = gtk_widget_get_default_visual();
+#else

         GdkVisual* vis = gdk_visual_get_best();
         gtk_widget_set_default_visual( vis );
         GdkVisual* vis = gdk_visual_get_best();
         gtk_widget_set_default_visual( vis );

+#endif

 
         GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
         gtk_widget_set_default_colormap( colormap );
 
         visual = vis;
     }
 
         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 */
+    // Nothing to do for 15, 16, 24, 32 bit displays

     if (visual->depth > 8) return TRUE;
 
     if (visual->depth > 8) return TRUE;
 

-    /* initialize color cube for 8-bit color reduction dithering */
+    // initialize color cube for 8-bit color reduction dithering

 
     GdkColormap *cmap = gtk_widget_get_default_colormap();
 
 
     GdkColormap *cmap = gtk_widget_get_default_colormap();
 


@@ -315,16 +513,11 @@ bool wxApp::OnInitGui()
                 }
                 else
                 {
                 }
                 else
                 {

-#if (GTK_MINOR_VERSION > 0)
-                    /* assume 8-bit true or static colors. this really
-                       exists. */
+                    // 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;
                     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

                 }
                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }
                 }
                 m_colorCube[ (r*1024) + (g*32) + b ] = index;
             }


@@ -334,8 +527,32 @@ bool wxApp::OnInitGui()
     return TRUE;
 }
 
     return TRUE;
 }
 

+GdkVisual *wxApp::GetGdkVisual()
+{
+    GdkVisual *visual = NULL;
+
+    if (m_glVisualInfo)
+        visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
+    else
+        visual = gdk_window_get_visual( wxGetRootWindow()->window );
+
+    wxASSERT( visual );
+
+    return visual;
+}
+

 bool wxApp::ProcessIdle()
 {
 bool wxApp::ProcessIdle()
 {

+    wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
+    node = wxTopLevelWindows.GetFirst();
+    while (node)
+    {
+        wxWindow* win = node->GetData();
+        CallInternalIdle( win );
+
+        node = node->GetNext();
+    }
+

     wxIdleEvent event;
     event.SetEventObject( this );
     ProcessEvent( event );
     wxIdleEvent event;
     event.SetEventObject( this );
     ProcessEvent( event );


@@ -347,27 +564,20 @@ void wxApp::OnIdle( wxIdleEvent &event )
 {
     static bool s_inOnIdle = FALSE;
 
 {
     static bool s_inOnIdle = FALSE;
 

-    /* Avoid recursion (via ProcessEvent default case) */
+    // Avoid recursion (via ProcessEvent default case)

     if (s_inOnIdle)
         return;
 
     s_inOnIdle = TRUE;
 
     if (s_inOnIdle)
         return;
 
     s_inOnIdle = TRUE;
 

-    /* Resend in the main thread events which have been prepared in other
-       threads */
+    // Resend in the main thread events which have been prepared in other
+    // threads

     ProcessPendingEvents();
 
     ProcessPendingEvents();
 

-    /* 'Garbage' collection of windows deleted with Close(). */
+    // 'Garbage' collection of windows deleted with Close()

     DeletePendingObjects();
 
     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 */
+    // Send OnIdle events to all windows

     bool needMore = SendIdleEvents();
 
     if (needMore)
     bool needMore = SendIdleEvents();
 
     if (needMore)


@@ -386,12 +596,29 @@ bool wxApp::SendIdleEvents()
         wxWindow* win = node->GetData();
         if (SendIdleEvents(win))
             needMore = TRUE;
         wxWindow* win = node->GetData();
         if (SendIdleEvents(win))
             needMore = TRUE;

+

         node = node->GetNext();
     }
 
     return needMore;
 }
 
         node = node->GetNext();
     }
 
     return needMore;
 }
 

+bool wxApp::CallInternalIdle( wxWindow* win )
+{
+    win->OnInternalIdle();
+
+    wxNode* node = win->GetChildren().First();
+    while (node)
+    {
+        wxWindow* win = (wxWindow*) node->Data();
+        CallInternalIdle( win );
+
+        node = node->Next();
+    }
+
+    return TRUE;
+}
+

 bool wxApp::SendIdleEvents( wxWindow* win )
 {
     bool needMore = FALSE;
 bool wxApp::SendIdleEvents( wxWindow* win )
 {
     bool needMore = FALSE;


@@ -399,9 +626,7 @@ bool wxApp::SendIdleEvents( wxWindow* win )
     wxIdleEvent event;
     event.SetEventObject(win);
 
     wxIdleEvent event;
     event.SetEventObject(win);
 

-    win->ProcessEvent(event);
-
-    win->OnInternalIdle();
+    win->GetEventHandler()->ProcessEvent(event);

 
     if (event.MoreRequested())
         needMore = TRUE;
 
     if (event.MoreRequested())
         needMore = TRUE;


@@ -415,7 +640,8 @@ bool wxApp::SendIdleEvents( wxWindow* win )
 
         node = node->Next();
     }
 
         node = node->Next();
     }

-    return needMore ;
+
+    return needMore;

 }
 
 int wxApp::MainLoop()
 }
 
 int wxApp::MainLoop()


@@ -463,12 +689,8 @@ void wxApp::DeletePendingObjects()
 
 bool wxApp::Initialize()
 {
 
 bool wxApp::Initialize()
 {

-    wxBuffer = new wxChar[BUFSIZ + 512];
-

     wxClassInfo::InitializeClasses();
 
     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
     // 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


@@ -487,7 +709,12 @@ bool wxApp::Initialize()
 #endif
 
     wxModule::RegisterModules();
 #endif
 
     wxModule::RegisterModules();

-    if (!wxModule::InitializeModules()) return FALSE;
+    if (!wxModule::InitializeModules())
+        return FALSE;
+
+#if wxUSE_INTL
+    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
+#endif

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -500,9 +727,7 @@ void wxApp::CleanUp()
     wxCleanUpResourceSystem();
 #endif
 
     wxCleanUpResourceSystem();
 #endif
 

-    if (wxTheColourDatabase)
-        delete wxTheColourDatabase;
-        
+    delete wxTheColourDatabase;

     wxTheColourDatabase = (wxColourDatabase*) NULL;
 
     wxDeleteStockObjects();
     wxTheColourDatabase = (wxColourDatabase*) NULL;
 
     wxDeleteStockObjects();


@@ -512,22 +737,16 @@ void wxApp::CleanUp()
     delete wxTheApp;
     wxTheApp = (wxApp*) NULL;
 
     delete wxTheApp;
     wxTheApp = (wxApp*) NULL;
 

-    // 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.
+    wxClassInfo::CleanUpClasses();
+

 #if wxUSE_THREADS
     delete wxPendingEvents;
     delete wxPendingEventsLocker;
 #endif
 
 #if wxUSE_THREADS
     delete wxPendingEvents;
     delete wxPendingEventsLocker;
 #endif
 

-    wxSystemSettings::Done();
-
-    delete[] wxBuffer;
-
-    wxClassInfo::CleanUpClasses();
-

     // check for memory leaks
 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
     // check for memory leaks
 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT

-    if (wxDebugContext::CountObjectsLeft() > 0)
+    if (wxDebugContext::CountObjectsLeft(TRUE) > 0)

     {
         wxLogDebug(wxT("There were memory leaks.\n"));
         wxDebugContext::Dump();
     {
         wxLogDebug(wxT("There were memory leaks.\n"));
         wxDebugContext::Dump();


@@ -549,16 +768,33 @@ void wxApp::CleanUp()
 // wxEntry
 //-----------------------------------------------------------------------------
 
 // wxEntry
 //-----------------------------------------------------------------------------
 

-int wxEntry( int argc, char *argv[] )
+// NB: argc and argv may be changed here, pass by reference!
+int wxEntryStart( int& argc, char *argv[] )

 {
 #if wxUSE_THREADS
 {
 #if wxUSE_THREADS

-    g_thread_init(NULL);
+    // GTK 1.2 up to version 1.2.3 has broken threads
+    if ((gtk_major_version == 1) &&
+        (gtk_minor_version == 2) &&
+        (gtk_micro_version < 4))
+    {
+        printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" );
+    }
+    else
+    {
+        g_thread_init(NULL);
+    }

 #endif
 #endif

-    
+

     gtk_set_locale();
 
     gtk_set_locale();
 

+    // We should have the wxUSE_WCHAR_T test on the _outside_

 #if wxUSE_WCHAR_T
 #if wxUSE_WCHAR_T

+#if defined(__WXGTK20__)
+    // gtk+ 2.0 supports Unicode through UTF-8 strings
+    wxConvCurrent = &wxConvUTF8;
+#else

     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;
     if (!wxOKlibc()) wxConvCurrent = &wxConvLocal;

+#endif

 #else
     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 #endif
 #else
     if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL;
 #endif


@@ -575,6 +811,60 @@ int wxEntry( int argc, char *argv[] )
         return -1;
     }
 
         return -1;
     }
 

+    return 0;
+}
+
+
+int wxEntryInitGui()
+{
+    int retValue = 0;
+
+    if ( !wxTheApp->OnInitGui() )
+        retValue = -1;
+
+    wxGetRootWindow();
+
+    return retValue;
+}
+
+
+void wxEntryCleanup()
+{
+#if wxUSE_LOG
+    // flush the logged messages if any
+    wxLog *log = wxLog::GetActiveTarget();
+    if (log != NULL && log->HasPendingMessages())
+        log->Flush();
+
+    // 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
+
+    wxApp::CleanUp();
+
+    gdk_threads_leave();
+}
+
+
+int wxEntry( int argc, char *argv[] )
+{
+#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+    // This seems to be necessary since there are 'rogue'
+    // objects present at this point (perhaps global objects?)
+    // Setting a checkpoint will ignore them as far as the
+    // memory checking facility is concerned.
+    // Of course you may argue that memory allocated in globals should be
+    // checked, but this is a reasonable compromise.
+    wxDebugContext::SetCheckpoint();
+#endif
+    int err = wxEntryStart(argc, argv);
+    if (err)
+        return err;
+

     if (!wxTheApp)
     {
         wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,
     if (!wxTheApp)
     {
         wxCHECK_MSG( wxApp::GetInitializerFunction(), -1,


@@ -593,7 +883,7 @@ int wxEntry( int argc, char *argv[] )
 #if wxUSE_UNICODE
     wxTheApp->argv = new wxChar*[argc+1];
     int mb_argc = 0;
 #if wxUSE_UNICODE
     wxTheApp->argv = new wxChar*[argc+1];
     int mb_argc = 0;

-    while (mb_argc < argc) 
+    while (mb_argc < argc)

     {
         wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
         mb_argc++;
     {
         wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc]));
         mb_argc++;


@@ -603,14 +893,14 @@ int wxEntry( int argc, char *argv[] )
     wxTheApp->argv = argv;
 #endif
 
     wxTheApp->argv = argv;
 #endif
 

-    wxString name(wxFileNameFromPath(argv[0]));
-    wxStripExtension( name );
-    wxTheApp->SetAppName( name );
-
-    int retValue = 0;
+    if (wxTheApp->argc > 0)
+    {
+        wxFileName fname( wxTheApp->argv[0] );
+        wxTheApp->SetAppName( fname.GetName() );
+    }

 
 

-    if ( !wxTheApp->OnInitGui() )
-        retValue = -1;
+    int retValue;
+    retValue = wxEntryInitGui();

 
     // Here frames insert themselves automatically into wxTopLevelWindows by
     // getting created in OnInit().
 
     // Here frames insert themselves automatically into wxTopLevelWindows by
     // getting created in OnInit().


@@ -622,82 +912,44 @@ int wxEntry( int argc, char *argv[] )
 
     if ( retValue == 0 )
     {
 
     if ( retValue == 0 )
     {

-        /* delete pending toplevel windows (typically a single
-           dialog) so that, if there isn't any left, we don't
-           call OnRun() */
+        // Delete pending toplevel windows

         wxTheApp->DeletePendingObjects();
 
         wxTheApp->DeletePendingObjects();
 

-        wxTheApp->m_initialized = wxTopLevelWindows.GetCount() != 0;
+        // When is the app not initialized ?
+        wxTheApp->m_initialized = TRUE;

 
         if (wxTheApp->Initialized())
         {
 
         if (wxTheApp->Initialized())
         {

-            retValue = wxTheApp->OnRun();
+            wxTheApp->OnRun();

 
             wxWindow *topWindow = wxTheApp->GetTopWindow();
 
             wxWindow *topWindow = wxTheApp->GetTopWindow();

-            if (topWindow)
-            {
-                /* Forcibly delete the window. */
-                if (topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
-                    topWindow->IsKindOf(CLASSINFO(wxDialog)) )
-                {
-                    topWindow->Close( TRUE );
-                    wxTheApp->DeletePendingObjects();
-                }
-                else
-                {
-                    delete topWindow;
-                    wxTheApp->SetTopWindow( (wxWindow*) NULL );
-                }
-            }
-            wxTheApp->OnExit();
-        }
-    }

 
 

-#if wxUSE_LOG
-    // flush the logged messages if any
-    wxLog *log = wxLog::GetActiveTarget();
-    if (log != NULL && log->HasPendingMessages())
-        log->Flush();
+            // Delete all pending windows if any
+            wxTheApp->DeletePendingObjects();

 
 

-    // 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
+            // Reset top window
+            if (topWindow)
+                wxTheApp->SetTopWindow( (wxWindow*) NULL );

 
 

-    wxApp::CleanUp();
+            retValue = wxTheApp->OnExit();
+        }
+    }

 
 

-    gdk_threads_leave();
+    wxEntryCleanup();

 
     return retValue;
 }
 
 
     return retValue;
 }
 

-#include "wx/gtk/info.xpm"
-#include "wx/gtk/error.xpm"
-#include "wx/gtk/question.xpm"
-#include "wx/gtk/warning.xpm"
+#ifdef __WXDEBUG__

 
 

-wxIcon
-wxApp::GetStdIcon(int which) const
+void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)

 {
 {

-    switch(which)
-    {
-        case wxICON_INFORMATION:
-            return wxIcon(info_xpm);
+    m_isInAssert = TRUE;

 
 

-        case wxICON_QUESTION:
-            return wxIcon(question_xpm);
+    wxAppBase::OnAssert(file, line, cond, msg);

 
 

-        case wxICON_EXCLAMATION:
-            return wxIcon(warning_xpm);
+    m_isInAssert = FALSE;
+}

 
 

-        default:
-            wxFAIL_MSG(wxT("requested non existent standard icon"));
-            // still fall through
+#endif // __WXDEBUG__

 
 

-        case wxICON_HAND:
-            return wxIcon(error_xpm);
-    }
-}