corrected off by 1 error in cMB2WC() call (thanks valgrind)

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

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 21748cb2e9b8dee43e95fe1adeaf2f3fd0425641..33cf2dc6a0e76688f7ab048bade8bd84cb995280 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:          $Id$


@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "app.h"
-#endif
-

 #ifdef __VMS
 // vms_jackets.h should for proper working be included before anything else
 # include <vms_jackets.h>
 #ifdef __VMS
 // vms_jackets.h should for proper working be included before anything else
 # include <vms_jackets.h>


@@ -21,77 +17,43 @@
 #include "wx/wxprec.h"
 
 #include "wx/app.h"
 #include "wx/wxprec.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"
-#include "wx/msgdlg.h"
-#include "wx/file.h"
-#include "wx/filename.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
-    #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"

 
 

-#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
+#ifdef __WXGPE__
+    #include <gpe/init.h>
+#endif

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

+#include "wx/gtk/private.h"
+#include "wx/apptrait.h"

 
 

-#include <gtk/gtk.h>
-
+#include <gdk/gdkx.h>

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

-// global data
+// link GnomeVFS

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

-bool   g_mainThreadLocked = FALSE;
-gint   g_pendingTag = 0;
-
-static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;
+#if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS
+    #include "wx/link.h"
+    wxFORCE_LINK_MODULE(gnome_vfs)
+#endif

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

-// idle system
+// global data

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

-extern bool g_isIdle;
+bool   g_mainThreadLocked = false;

 
 

-void wxapp_install_idle_handler();
+static GtkWidget *gs_RootWindow = (GtkWidget*) NULL;

 
 //-----------------------------------------------------------------------------
 // wxYield
 
 //-----------------------------------------------------------------------------
 // wxYield


@@ -100,7 +62,7 @@ void wxapp_install_idle_handler();
 // not static because used by textctrl.cpp
 //
 // MT-FIXME
 // not static because used by textctrl.cpp
 //
 // MT-FIXME

-bool wxIsInsideYield = FALSE;
+bool wxIsInsideYield = false;

 
 bool wxApp::Yield(bool onlyIfNeeded)
 {
 
 bool wxApp::Yield(bool onlyIfNeeded)
 {


@@ -111,33 +73,26 @@ bool wxApp::Yield(bool onlyIfNeeded)
             wxFAIL_MSG( wxT("wxYield called recursively" ) );
         }
 
             wxFAIL_MSG( wxT("wxYield called recursively" ) );
         }
 

-        return FALSE;
+        return false;

     }
 
 #if wxUSE_THREADS
     if ( !wxThread::IsMain() )
     {
         // can't call gtk_main_iteration() from other threads like this
     }
 
 #if wxUSE_THREADS
     if ( !wxThread::IsMain() )
     {
         // can't call gtk_main_iteration() from other threads like this

-        return TRUE;
+        return true;

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

-    wxIsInsideYield = TRUE;
-
-    if (!g_isIdle)
-    {
-        // We need to remove idle callbacks or the loop will
-        // never finish.
-        gtk_idle_remove( m_idleTag );
-        m_idleTag = 0;
-        g_isIdle = TRUE;
-    }
+    wxIsInsideYield = true;

 
 

+#if wxUSE_LOG

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

+#endif

 
 

-    while (gtk_events_pending())
+    while (EventsPending())

         gtk_main_iteration();
 
     // It's necessary to call ProcessIdle() to update the frames sizes which
         gtk_main_iteration();
 
     // It's necessary to call ProcessIdle() to update the frames sizes which


@@ -148,231 +103,149 @@ bool wxApp::Yield(bool onlyIfNeeded)
     // return value of Processidle().
     ProcessIdle();
 
     // return value of Processidle().
     ProcessIdle();
 

+#if wxUSE_LOG

     // let the logs be flashed again
     wxLog::Resume();
     // let the logs be flashed again
     wxLog::Resume();

-
-    wxIsInsideYield = FALSE;
-
-    return TRUE;
-}
-
-//-----------------------------------------------------------------------------
-// wxWakeUpIdle
-//-----------------------------------------------------------------------------
-
-void wxApp::WakeUpIdle()
-{
-#if wxUSE_THREADS
-    if (!wxThread::IsMain())
-        wxMutexGuiEnter();

 #endif
 
 #endif
 

-    if (g_isIdle)
-        wxapp_install_idle_handler();
+    wxIsInsideYield = false;

 
 

-#if wxUSE_THREADS
-    if (!wxThread::IsMain())
-        wxMutexGuiLeave();
-#endif
+    return true;

 }
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // local functions
 //-----------------------------------------------------------------------------
 

-// the callback functions must be extern "C" to comply with GTK+ declarations
-extern "C"
+// One-shot signal emission hook, to install idle handler.
+extern "C" {
+static gboolean
+wx_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer data)

 {
 {

+    wxApp* app = wxTheApp;
+    if (app != NULL)
+        app->WakeUpIdle();
+    gulong* hook_id = (gulong*)data;
+    // record that hook is not installed
+    *hook_id = 0;
+    // remove hook
+    return false;
+}
+}

 
 

-static gint wxapp_pending_callback( gpointer WXUNUSED(data) )
+// Add signal emission hooks, to re-install idle handler when needed.
+static void wx_add_idle_hooks()

 {
 {

-    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();
-
-    // Sent idle event to all who request them.
-    wxTheApp->ProcessPendingEvents();
-
-    g_pendingTag = 0;
-
-    // Flush the logged messages if any.
-#if wxUSE_LOG
-    wxLog::FlushActive();
-#endif // wxUSE_LOG
-
-    // Release lock again
-    gdk_threads_leave();
-
-    // Return FALSE to indicate that no more idle events are
-    // to be sent (single shot instead of continuous stream)
-    return FALSE;
+    // "event" hook
+    {
+        static gulong hook_id = 0;
+        if (hook_id == 0)
+        {
+            static guint sig_id = 0;
+            if (sig_id == 0)
+                sig_id = g_signal_lookup("event", GTK_TYPE_WIDGET);
+            hook_id = g_signal_add_emission_hook(
+                sig_id, 0, wx_emission_hook, &hook_id, NULL);
+        }
+    }
+    // "size_allocate" hook
+    // Needed to match the behavior of the old idle system,
+    // but probably not necessary.
+    {
+        static gulong hook_id = 0;
+        if (hook_id == 0)
+        {
+            static guint sig_id = 0;
+            if (sig_id == 0)
+                sig_id = g_signal_lookup("size_allocate", GTK_TYPE_WIDGET);
+            hook_id = g_signal_add_emission_hook(
+                sig_id, 0, wx_emission_hook, &hook_id, NULL);
+        }
+    }

 }
 
 }
 

-static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
+extern "C" {
+static gboolean wxapp_idle_callback(gpointer)

 {
 {

-    if (!wxTheApp)
-        return TRUE;
+    return wxTheApp->DoIdle();
+}
+}

 
 

-#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() )
+bool wxApp::DoIdle()
+{
+    guint id_save;

     {
     {

-        // But repaint the assertion message if necessary
-        if (wxTopLevelWindows.GetCount() > 0)
-        {
-            wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData();
-#ifdef __WXGTK20__
-            if (win->IsKindOf(CLASSINFO(wxMessageDialog)))
-#else
-            if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog)))
+        // 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();
+#ifdef __WXDEBUG__
+        // don't generate the idle events while the assert modal dialog is shown,
+        // this matches the behavior of wxMSW
+        if (m_isInAssert)
+            return false;

 #endif
 #endif

-                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();
     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;
-
-    // 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))
-        ;
-
-    // Release lock again
+    bool needMore;
+    do {
+        needMore = ProcessIdle();
+    } while (needMore && gtk_events_pending() == 0);

     gdk_threads_leave();
 
     gdk_threads_leave();
 

-    // 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

-
-#ifdef HAVE_POLL
-    #define wxPoll poll
-    #define wxPollFd pollfd
-#else // !HAVE_POLL
-
-typedef GPollFD wxPollFd;
-
-int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout)
-{
-    // 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++ )
+    wxMutexLocker lock(*m_idleMutex);
+#endif
+    // if a new idle source was added during ProcessIdle
+    if (m_idleSourceId != 0)

     {
     {

-        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;
+        // remove it
+        g_source_remove(m_idleSourceId);
+        m_idleSourceId = 0;

     }
     }

-
-    fdMax++;
-    int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout);
-
-    // translate the results back
-    for ( i = 0; i < nfds; i++ )
+    // if more idle processing requested
+    if (needMore)

     {
     {

-        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;
+        // keep this source installed
+        m_idleSourceId = id_save;
+        return true;

     }
     }

-
-    return res;
+    // add hooks and remove this source
+    wx_add_idle_hooks();
+    return false;

 }
 
 }
 

-#endif // HAVE_POLL/!HAVE_POLL
+#if wxUSE_THREADS
+
+static GPollFunc wxgs_poll_func;

 
 

+extern "C" {

 static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
 {
     gdk_threads_enter();
 
     wxMutexGuiLeave();
 static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
 {
     gdk_threads_enter();
 
     wxMutexGuiLeave();

-    g_mainThreadLocked = TRUE;
+    g_mainThreadLocked = true;

 
 

-    // 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 );
+    gint res = (*wxgs_poll_func)(ufds, nfds, timeout);

 
     wxMutexGuiEnter();
 
     wxMutexGuiEnter();

-    g_mainThreadLocked = FALSE;
+    g_mainThreadLocked = false;

 
     gdk_threads_leave();
 
     return res;
 }
 
     gdk_threads_leave();
 
     return res;
 }

+}

 
 #endif // wxUSE_THREADS
 
 
 #endif // wxUSE_THREADS
 

-} // extern "C"
-
-void wxapp_install_idle_handler()
-{
-    // GD: this assert is raised when using the thread sample (which works)
-    //     so the test is probably not so easy. Can widget callbacks be
-    //     triggered from child threads and, if so, for which widgets?
-    // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") );
-
-    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
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // Access to the root window global
 //-----------------------------------------------------------------------------


@@ -393,246 +266,174 @@ GtkWidget* wxGetRootWindow()
 
 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler)
 

-BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
-    EVT_IDLE(wxAppBase::OnIdle)
-END_EVENT_TABLE()
-

 wxApp::wxApp()
 {
 wxApp::wxApp()
 {

-    m_initialized = FALSE;

 #ifdef __WXDEBUG__
 #ifdef __WXDEBUG__

-    m_isInAssert = FALSE;
+    m_isInAssert = false;

 #endif // __WXDEBUG__
 #endif // __WXDEBUG__

-
-    m_idleTag = 0;
-    wxapp_install_idle_handler();
-

 #if wxUSE_THREADS
 #if wxUSE_THREADS

-    g_main_set_poll_func( wxapp_poll_func );
+    m_idleMutex = NULL;

 #endif
 #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;
+    m_idleSourceId = 0;

 }
 
 wxApp::~wxApp()
 {
 }
 
 wxApp::~wxApp()
 {

-    if (m_idleTag) gtk_idle_remove( m_idleTag );
-
-    if (m_colorCube) free(m_colorCube);

 }
 
 bool wxApp::OnInitGui()
 {
     if ( !wxAppBase::OnInitGui() )
 }
 
 bool wxApp::OnInitGui()
 {
     if ( !wxAppBase::OnInitGui() )

-        return FALSE;
-
-    GdkVisual *visual = gdk_visual_get_system();
+        return false;

 
     // if this is a wxGLApp (derived from wxApp), and we've already
     // chosen a specific visual, then derive the GdkVisual from that
 
     // 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)
+    if ( GetXVisualInfo() )

     {
     {

-#ifdef __WXGTK20__
-        // seems gtk_widget_set_default_visual no longer exists?

         GdkVisual* vis = gtk_widget_get_default_visual();
         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 );
 
         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
     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 );
-#endif
-
-        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++)
-    {
-        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())

                 {
                 {

-                    // 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* 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;

             }
         }
     }
 
             }
         }
     }
 

-    return TRUE;
+    return true;

 }
 
 GdkVisual *wxApp::GetGdkVisual()
 {
     GdkVisual *visual = NULL;
 
 }
 
 GdkVisual *wxApp::GetGdkVisual()
 {
     GdkVisual *visual = NULL;
 

-    if (m_glVisualInfo)
-        visual = gdkx_visual_get( ((XVisualInfo *) m_glVisualInfo)->visualid );
+    XVisualInfo *xvi = (XVisualInfo *)GetXVisualInfo();
+    if ( xvi )
+        visual = gdkx_visual_get( xvi->visualid );

     else
     else

-        visual = gdk_window_get_visual( wxGetRootWindow()->window );
+        visual = gdk_drawable_get_visual( wxGetRootWindow()->window );

 
     wxASSERT( visual );
 
     return visual;
 }
 
 
     wxASSERT( visual );
 
     return visual;
 }
 

-int wxApp::MainLoop()
-{
-    gtk_main();
-    return 0;
-}
-
-void wxApp::Exit()
-{
-    // VZ: no idea why is it different from ExitMainLoop() but this is what
-    //     wxExit() used to do
-    gtk_main_quit();
-}
-
-void wxApp::ExitMainLoop()
-{
-    if (gtk_main_level() > 0)
-        gtk_main_quit();
-}
-
-bool wxApp::Initialized()
-{
-    return m_initialized;
-}
-
-bool wxApp::Pending()
+// use unusual names for the parameters to avoid conflict with wxApp::arg[cv]
+bool wxApp::Initialize(int& argc_, wxChar **argv_)

 {
 {

-    return (gtk_events_pending() > 0);
-}
-
-bool wxApp::Dispatch()
-{
-    gtk_main_iteration();
-
-    return true;
-}
+    if ( !wxAppBase::Initialize(argc_, argv_) )
+        return false;

 
 

-bool wxApp::Initialize(int& argc, wxChar **argv)
-{

 #if wxUSE_THREADS
 #if wxUSE_THREADS

-    // 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
-    {
-        if (!g_thread_supported())
-            g_thread_init(NULL);
-    }
-#endif // wxUSE_THREADS
+    if (!g_thread_supported())
+        g_thread_init(NULL);

 
 

-    gtk_set_locale();
+    wxgs_poll_func = g_main_context_get_poll_func(NULL);
+    g_main_context_set_poll_func(NULL, wxapp_poll_func);
+#endif // wxUSE_THREADS

 
     // We should have the wxUSE_WCHAR_T test on the _outside_
 #if wxUSE_WCHAR_T
 
     // We should have the wxUSE_WCHAR_T test on the _outside_
 #if wxUSE_WCHAR_T

-    #if defined(__WXGTK20__)
-        // gtk+ 2.0 supports Unicode through UTF-8 strings
-        wxConvCurrent = &wxConvUTF8;
-    #else // GTK 1.x
-        if (!wxOKlibc())
-            wxConvCurrent = &wxConvLocal;
-    #endif
+    // gtk+ 2.0 supports Unicode through UTF-8 strings
+    wxConvCurrent = &wxConvUTF8;

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

+    // 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(_T("G_FILENAME_ENCODING")));
+    encName = encName.BeforeFirst(_T(','));
+    if (encName.CmpNoCase(_T("@locale")) == 0)
+        encName.clear();
+    encName.MakeUpper();
+#if wxUSE_INTL
+    if (encName.empty())
+    {
+        // (2) if a non default locale is set, assume that the user wants his
+        //     filenames in this locale too
+        encName = wxLocale::GetSystemEncodingName().Upper();
+        // (3) finally use UTF-8 by default
+        if (encName.empty() || encName == _T("US-ASCII"))
+            encName = _T("UTF-8");
+        wxSetEnv(_T("G_FILENAME_ENCODING"), encName);
+    }
+#else
+    if (encName.empty())
+        encName = _T("UTF-8");
+
+    // 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();
+
+#endif // wxUSE_INTL
+    static wxConvBrokenFileNames fileconv(encName);
+    wxConvFileName = &fileconv;
+
+
+    bool init_result;
+

 #if wxUSE_UNICODE
     // gtk_init() wants UTF-8, not wchar_t, so convert
     int i;
 #if wxUSE_UNICODE
     // gtk_init() wants UTF-8, not wchar_t, so convert
     int i;

-    char **argvGTK = new char *[argc + 1];
-    for ( i = 0; i < argc; i++ )
+    char **argvGTK = new char *[argc_ + 1];
+    for ( i = 0; i < argc_; i++ )

     {
     {

-        argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i]));
+        argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv_[i]));

     }
 
     }
 

-    argvGTK[argc] = NULL;
+    argvGTK[argc_] = NULL;

 
 

-    int argcGTK = argc;
-    gtk_init( &argcGTK, &argvGTK );
+    int argcGTK = argc_;

 
 

-    if ( argcGTK != argc )
+#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 );
+#endif
+    wxUpdateLocaleIsUtf8();
+
+    if ( argcGTK != argc_ )

     {
         // we have to drop the parameters which were consumed by GTK+
         for ( i = 0; i < argcGTK; i++ )
         {
     {
         // 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 )
+            while ( strcmp(wxConvUTF8.cWX2MB(argv_[i]), argvGTK[i]) != 0 )

             {
             {

-                memmove(argv + i, argv + i + 1, argc - i);
+                memmove(argv_ + i, argv_ + i + 1, (argc_ - i)*sizeof(*argv_));

             }
         }
 
             }
         }
 

-        argc = argcGTK;
+        argc_ = argcGTK;

     }
     //else: gtk_init() didn't modify our parameters
 
     }
     //else: gtk_init() didn't modify our parameters
 


@@ -644,49 +445,128 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
 
     delete [] argvGTK;
 #else // !wxUSE_UNICODE
 
     delete [] argvGTK;
 #else // !wxUSE_UNICODE

-    // gtk_init() shouldn't actually change argv itself (just its contents) so
+    // gtk_init() shouldn't actually change argv_ itself (just its contents) so

     // it's ok to pass pointer to it
     // it's ok to pass pointer to it

-    gtk_init( &argc, &argv );
+    init_result = gtk_init_check( &argc_, &argv_ );

 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
 #endif // wxUSE_UNICODE/!wxUSE_UNICODE
 

-    // we can not enter threads before gtk_init is done
-    gdk_threads_enter();
+    // update internal arg[cv] as GTK+ may have removed processed options:
+    this->argc = argc_;
+    this->argv = argv_;

 
 

-    if ( !wxAppBase::Initialize(argc, argv) )
+    if ( m_traits )

     {
     {

-        gdk_threads_leave();
+        // 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 ( int 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;
+                }
+            }
+        }
+    }

 
 

+    if ( !init_result )
+    {
+        wxLogError(_("Unable to initialize GTK+, is DISPLAY set properly?"));

         return false;
     }
 
         return false;
     }
 

-    wxSetDetectableAutoRepeat( TRUE );
+    // we can not enter threads before gtk_init is done
+    gdk_threads_enter();
+
+    wxSetDetectableAutoRepeat( true );

 
 #if wxUSE_INTL
     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 #endif
 
 
 #if wxUSE_INTL
     wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
 #endif
 

-    wxGetRootWindow();
+#if wxUSE_THREADS
+    m_idleMutex = new wxMutex;
+#endif
+    // make sure GtkWidget type is loaded, idle hooks need it
+    g_type_class_ref(GTK_TYPE_WIDGET);
+    WakeUpIdle();

 
     return true;
 }
 
 void wxApp::CleanUp()
 {
 
     return true;
 }
 
 void wxApp::CleanUp()
 {

+    if (m_idleSourceId != 0)
+        g_source_remove(m_idleSourceId);
+#if wxUSE_THREADS
+    delete m_idleMutex;
+    m_idleMutex = NULL;
+#endif
+    // release reference acquired by Initialize()
+    g_type_class_unref(g_type_class_peek(GTK_TYPE_WIDGET));
+

     gdk_threads_leave();
 
     wxAppBase::CleanUp();
 }
 
     gdk_threads_leave();
 
     wxAppBase::CleanUp();
 }
 

+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);
+}
+
+// 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)
+    {
+        g_source_remove(m_idleSourceId);
+        m_idleSourceId = 0;
+        wx_add_idle_hooks();
+    }
+    return gtk_events_pending() != 0;
+}
+

 #ifdef __WXDEBUG__
 
 #ifdef __WXDEBUG__
 

-void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxChar *msg)
+void wxApp::OnAssertFailure(const wxChar *file,
+                            int line,
+                            const wxChar* func,
+                            const wxChar* cond,
+                            const wxChar *msg)

 {
 {

-    m_isInAssert = TRUE;

 
 

-    wxAppBase::OnAssert(file, line, cond, msg);
+    // block wx idle events while assert dialog is showing
+    m_isInAssert = true;
+
+    wxAppBase::OnAssertFailure(file, line, func, cond, msg);

 
 

-    m_isInAssert = FALSE;
+    m_isInAssert = false;

 }
 
 #endif // __WXDEBUG__
 }
 
 #endif // __WXDEBUG__

-