use common bottleneck

[wxWidgets.git] / src / common / appbase.cpp

diff --git a/src/common/appbase.cpp b/src/common/appbase.cpp
index c0af2ac2564d6427b09314cf8aef2401184eaf22..5014ca25df9476022133b90cf18b1d36a42b9a97 100644 (file)
--- a/src/common/appbase.cpp
+++ b/src/common/appbase.cpp
@@ -1,12 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        common/base/appbase.cpp
-// Purpose:     implements wxAppConsole class
+// Name:        src/common/appbase.cpp
+// Purpose:     implements wxAppConsoleBase class

 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     19.06.2003 (extracted from common/appcmn.cpp)
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     19.06.2003 (extracted from common/appcmn.cpp)
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>

-// License:     wxWindows license
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -25,56 +25,58 @@
 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

+    #ifdef __WINDOWS__
+        #include  "wx/msw/wrapwin.h"  // includes windows.h for MessageBox()
+    #endif
+    #include "wx/list.h"

     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/app.h"
     #include "wx/intl.h"

-    #include "wx/list.h"

     #include "wx/log.h"
     #include "wx/log.h"

+    #include "wx/utils.h"
+    #include "wx/wxcrtvararg.h"

 #endif //WX_PRECOMP
 
 #endif //WX_PRECOMP
 

-#include "wx/utils.h"

 #include "wx/apptrait.h"
 #include "wx/cmdline.h"
 #include "wx/confbase.h"
 #include "wx/apptrait.h"
 #include "wx/cmdline.h"
 #include "wx/confbase.h"

+#include "wx/evtloop.h"

 #include "wx/filename.h"
 #include "wx/msgout.h"
 #include "wx/filename.h"
 #include "wx/msgout.h"

+#include "wx/scopedptr.h"
+#include "wx/sysopt.h"

 #include "wx/tokenzr.h"
 #include "wx/tokenzr.h"

+#include "wx/thread.h"

 
 

-#if !defined(__WXMSW__) || defined(__WXMICROWIN__)
+#if wxUSE_STL
+    #if wxUSE_EXCEPTIONS
+        #include <exception>
+        #include <typeinfo>
+    #endif
+    #if wxUSE_INTL
+        #include <locale>
+    #endif
+#endif // wxUSE_STL
+
+#if !defined(__WINDOWS__) || defined(__WXMICROWIN__)

   #include  <signal.h>      // for SIGTRAP used by wxTrap()
 #endif  //Win/Unix
 
   #include  <signal.h>      // for SIGTRAP used by wxTrap()
 #endif  //Win/Unix
 

-#if defined(__WXMSW__)
-  #include  "wx/msw/wrapwin.h"  // includes windows.h for MessageBox()
-#endif
+#include <locale.h>

 
 #if wxUSE_FONTMAP
     #include "wx/fontmap.h"
 #endif // wxUSE_FONTMAP
 
 
 #if wxUSE_FONTMAP
     #include "wx/fontmap.h"
 #endif // wxUSE_FONTMAP
 

-#if defined(__DARWIN__) && defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
-    // For MacTypes.h for Debugger function
-    #include <CoreFoundation/CFBase.h>
-#endif
-
-#if defined(__WXMAC__)
-    // VZ: MacTypes.h is enough under Mac OS X (where I could test it) but
-    //     I don't know which headers are needed under earlier systems so
-    //     include everything when in doubt
-    #ifdef __DARWIN__
-        #include  "MacTypes.h"
-    #else
-        #include  "wx/mac/private.h"  // includes mac headers
-    #endif
-#endif // __WXMAC__
-
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL

     #if wxUSE_STACKWALKER
         #include "wx/stackwalk.h"
     #if wxUSE_STACKWALKER
         #include "wx/stackwalk.h"

-        #ifdef __WXMSW__
+        #ifdef __WINDOWS__

             #include "wx/msw/debughlp.h"
         #endif
     #endif // wxUSE_STACKWALKER
             #include "wx/msw/debughlp.h"
         #endif
     #endif // wxUSE_STACKWALKER

-#endif // __WXDEBUG__
+
+    #include "wx/recguard.h"
+#endif // wxDEBUG_LEVEL

 
 // wxABI_VERSION can be defined when compiling applications but it should be
 // left undefined when compiling the library itself, it is then set to its
 
 // wxABI_VERSION can be defined when compiling applications but it should be
 // left undefined when compiling the library itself, it is then set to its


@@ -87,19 +89,22 @@
 // private functions prototypes
 // ----------------------------------------------------------------------------
 
 // private functions prototypes
 // ----------------------------------------------------------------------------
 

-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL

     // really just show the assert dialog
     static bool DoShowAssertDialog(const wxString& msg);
 
     // prepare for showing the assert dialog, use the given traits or
     // DoShowAssertDialog() as last fallback to really show it
     static
     // really just show the assert dialog
     static bool DoShowAssertDialog(const wxString& msg);
 
     // prepare for showing the assert dialog, use the given traits or
     // DoShowAssertDialog() as last fallback to really show it
     static

-    void ShowAssertDialog(const wxChar *szFile,
-                          int nLine,
-                          const wxChar *szCond,
-                          const wxChar *szMsg,
+    void ShowAssertDialog(const wxString& file,
+                          int line,
+                          const wxString& func,
+                          const wxString& cond,
+                          const wxString& msg,

                           wxAppTraits *traits = NULL);
                           wxAppTraits *traits = NULL);

+#endif // wxDEBUG_LEVEL

 
 

+#ifdef __WXDEBUG__

     // turn on the trace masks specified in the env variable WXTRACE
     static void LINKAGEMODE SetTraceMasks();
 #endif // __WXDEBUG__
     // turn on the trace masks specified in the env variable WXTRACE
     static void LINKAGEMODE SetTraceMasks();
 #endif // __WXDEBUG__


@@ -108,23 +113,36 @@
 // global vars
 // ----------------------------------------------------------------------------
 
 // global vars
 // ----------------------------------------------------------------------------
 

-wxAppConsole *wxAppConsole::ms_appInstance = NULL;
+wxAppConsole *wxAppConsoleBase::ms_appInstance = NULL;
+
+wxAppInitializerFunction wxAppConsoleBase::ms_appInitFn = NULL;
+
+wxSocketManager *wxAppTraitsBase::ms_manager = NULL;
+
+WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete;

 
 

-wxAppInitializerFunction wxAppConsole::ms_appInitFn = NULL;
+// ----------------------------------------------------------------------------
+// wxEventLoopPtr
+// ----------------------------------------------------------------------------
+
+// this defines wxEventLoopPtr
+wxDEFINE_TIED_SCOPED_PTR_TYPE(wxEventLoopBase)

 
 // ============================================================================
 
 // ============================================================================

-// wxAppConsole implementation
+// wxAppConsoleBase implementation

 // ============================================================================
 
 // ----------------------------------------------------------------------------
 // ctor/dtor
 // ----------------------------------------------------------------------------
 
 // ============================================================================
 
 // ----------------------------------------------------------------------------
 // ctor/dtor
 // ----------------------------------------------------------------------------
 

-wxAppConsole::wxAppConsole()
+wxAppConsoleBase::wxAppConsoleBase()

 {
     m_traits = NULL;
 {
     m_traits = NULL;

+    m_mainLoop = NULL;
+    m_bDoPendingEventProcessing = true;

 
 

-    ms_appInstance = this;
+    ms_appInstance = static_cast<wxAppConsole *>(this);

 
 #ifdef __WXDEBUG__
     SetTraceMasks();
 
 #ifdef __WXDEBUG__
     SetTraceMasks();


@@ -132,47 +150,78 @@ wxAppConsole::wxAppConsole()
     // In unicode mode the SetTraceMasks call can cause an apptraits to be
     // created, but since we are still in the constructor the wrong kind will
     // be created for GUI apps.  Destroy it so it can be created again later.
     // In unicode mode the SetTraceMasks call can cause an apptraits to be
     // created, but since we are still in the constructor the wrong kind will
     // be created for GUI apps.  Destroy it so it can be created again later.

-    delete m_traits;
-    m_traits = NULL;
+    wxDELETE(m_traits);

 #endif
 #endif
 #endif
 #endif

+
+    wxEvtHandler::AddFilter(this);

 }
 
 }
 

-wxAppConsole::~wxAppConsole()
+wxAppConsoleBase::~wxAppConsoleBase()

 {
 {

+    wxEvtHandler::RemoveFilter(this);
+
+    // we're being destroyed and using this object from now on may not work or
+    // even crash so don't leave dangling pointers to it
+    ms_appInstance = NULL;
+

     delete m_traits;
 }
 
 // ----------------------------------------------------------------------------
     delete m_traits;
 }
 
 // ----------------------------------------------------------------------------

-// initilization/cleanup
+// initialization/cleanup

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

-bool wxAppConsole::Initialize(int& argc, wxChar **argv)
+bool wxAppConsoleBase::Initialize(int& WXUNUSED(argc), wxChar **WXUNUSED(argv))

 {
 {

-    // remember the command line arguments
-    this->argc = argc;
-    this->argv = argv;
+    return true;
+}

 
 

-#ifndef __WXPALMOS__
-    if ( m_appName.empty() && argv )
+wxString wxAppConsoleBase::GetAppName() const
+{
+    wxString name = m_appName;
+    if ( name.empty() )

     {
     {

-        // the application name is, by default, the name of its executable file
-        wxFileName::SplitPath(argv[0], NULL, &m_appName, NULL);
+        if ( argv )
+        {
+            // the application name is, by default, the name of its executable file
+            wxFileName::SplitPath(argv[0], NULL, &name, NULL);
+        }

     }
     }

-#endif
+    return name;
+}

 
 

-    return true;
+wxString wxAppConsoleBase::GetAppDisplayName() const
+{
+    // use the explicitly provided display name, if any
+    if ( !m_appDisplayName.empty() )
+        return m_appDisplayName;
+
+    // if the application name was explicitly set, use it as is as capitalizing
+    // it won't always produce good results
+    if ( !m_appName.empty() )
+        return m_appName;
+
+    // if neither is set, use the capitalized version of the program file as
+    // it's the most reasonable default
+    return GetAppName().Capitalize();

 }
 
 }
 

-void wxAppConsole::CleanUp()
+wxEventLoopBase *wxAppConsoleBase::CreateMainLoop()

 {
 {

+    return GetTraits()->CreateEventLoop();
+}
+
+void wxAppConsoleBase::CleanUp()
+{
+    wxDELETE(m_mainLoop);

 }
 
 // ----------------------------------------------------------------------------
 // OnXXX() callbacks
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // OnXXX() callbacks
 // ----------------------------------------------------------------------------
 

-bool wxAppConsole::OnInit()
+bool wxAppConsoleBase::OnInit()

 {
 #if wxUSE_CMDLINE_PARSER
     wxCmdLineParser parser(argc, argv);
 {
 #if wxUSE_CMDLINE_PARSER
     wxCmdLineParser parser(argc, argv);


@@ -202,114 +251,330 @@ bool wxAppConsole::OnInit()
     return true;
 }
 
     return true;
 }
 

-int wxAppConsole::OnExit()
+int wxAppConsoleBase::OnRun()
+{
+    return MainLoop();
+}
+
+int wxAppConsoleBase::OnExit()

 {
 #if wxUSE_CONFIG
     // delete the config object if any (don't use Get() here, but Set()
     // because Get() could create a new config object)
 {
 #if wxUSE_CONFIG
     // delete the config object if any (don't use Get() here, but Set()
     // because Get() could create a new config object)

-    delete wxConfigBase::Set((wxConfigBase *) NULL);
+    delete wxConfigBase::Set(NULL);

 #endif // wxUSE_CONFIG
 
 #endif // wxUSE_CONFIG
 

-    // use Set(NULL) and not Get() to avoid creating a message output object on
-    // demand when we just want to delete it
-    delete wxMessageOutput::Set(NULL);
-

     return 0;
 }
 
     return 0;
 }
 

-void wxAppConsole::Exit()
+void wxAppConsoleBase::Exit()

 {
 {

-    exit(-1);
+    if (m_mainLoop != NULL)
+        ExitMainLoop();
+    else
+        exit(-1);

 }
 
 // ----------------------------------------------------------------------------
 // traits stuff
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // traits stuff
 // ----------------------------------------------------------------------------
 

-wxAppTraits *wxAppConsole::CreateTraits()
+wxAppTraits *wxAppConsoleBase::CreateTraits()

 {
     return new wxConsoleAppTraits;
 }
 
 {
     return new wxConsoleAppTraits;
 }
 

-wxAppTraits *wxAppConsole::GetTraits()
+wxAppTraits *wxAppConsoleBase::GetTraits()

 {
     // FIXME-MT: protect this with a CS?
     if ( !m_traits )
     {
         m_traits = CreateTraits();
 
 {
     // FIXME-MT: protect this with a CS?
     if ( !m_traits )
     {
         m_traits = CreateTraits();
 

-        wxASSERT_MSG( m_traits, _T("wxApp::CreateTraits() failed?") );
+        wxASSERT_MSG( m_traits, wxT("wxApp::CreateTraits() failed?") );

     }
 
     return m_traits;
 }
 
     }
 
     return m_traits;
 }
 

-// we must implement CreateXXX() in wxApp itself for backwards compatibility
-#if WXWIN_COMPATIBILITY_2_4
+/* static */
+wxAppTraits *wxAppConsoleBase::GetTraitsIfExists()
+{
+    wxAppConsole * const app = GetInstance();
+    return app ? app->GetTraits() : NULL;
+}

 
 

-#if wxUSE_LOG
+// ----------------------------------------------------------------------------
+// wxEventLoop redirection
+// ----------------------------------------------------------------------------

 
 

-wxLog *wxAppConsole::CreateLogTarget()
+int wxAppConsoleBase::MainLoop()

 {
 {

-    wxAppTraits *traits = GetTraits();
-    return traits ? traits->CreateLogTarget() : NULL;
+    wxEventLoopBaseTiedPtr mainLoop(&m_mainLoop, CreateMainLoop());
+
+    return m_mainLoop ? m_mainLoop->Run() : -1;

 }
 
 }
 

-#endif // wxUSE_LOG
+void wxAppConsoleBase::ExitMainLoop()
+{
+    // we should exit from the main event loop, not just any currently active
+    // (e.g. modal dialog) event loop
+    if ( m_mainLoop && m_mainLoop->IsRunning() )
+    {
+        m_mainLoop->Exit(0);
+    }
+}

 
 

-wxMessageOutput *wxAppConsole::CreateMessageOutput()
+bool wxAppConsoleBase::Pending()

 {
 {

-    wxAppTraits *traits = GetTraits();
-    return traits ? traits->CreateMessageOutput() : NULL;
+    // use the currently active message loop here, not m_mainLoop, because if
+    // we're showing a modal dialog (with its own event loop) currently the
+    // main event loop is not running anyhow
+    wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+    return loop && loop->Pending();
+}
+
+bool wxAppConsoleBase::Dispatch()
+{
+    // see comment in Pending()
+    wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+    return loop && loop->Dispatch();

 }
 
 }
 

-#endif // WXWIN_COMPATIBILITY_2_4
+bool wxAppConsoleBase::Yield(bool onlyIfNeeded)
+{
+    wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+    if ( loop )
+       return loop->Yield(onlyIfNeeded);
+
+    wxScopedPtr<wxEventLoopBase> tmpLoop(CreateMainLoop());
+    return tmpLoop->Yield(onlyIfNeeded);
+}
+
+void wxAppConsoleBase::WakeUpIdle()
+{
+    wxEventLoopBase * const loop = wxEventLoopBase::GetActive();
+
+    if ( loop )
+        loop->WakeUp();
+}
+
+bool wxAppConsoleBase::ProcessIdle()
+{
+    // synthesize an idle event and check if more of them are needed
+    wxIdleEvent event;
+    event.SetEventObject(this);
+    ProcessEvent(event);
+
+#if wxUSE_LOG
+    // flush the logged messages if any (do this after processing the events
+    // which could have logged new messages)
+    wxLog::FlushActive();
+#endif
+
+    // Garbage collect all objects previously scheduled for destruction.
+    DeletePendingObjects();
+
+    return event.MoreRequested();
+}
+
+bool wxAppConsoleBase::UsesEventLoop() const
+{
+    // in console applications we don't know whether we're going to have an
+    // event loop so assume we won't -- unless we already have one running
+    return wxEventLoopBase::GetActive() != NULL;
+}

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

-// event processing
+// events

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

-void wxAppConsole::ProcessPendingEvents()
+/* static */
+bool wxAppConsoleBase::IsMainLoopRunning()

 {
 {

-#if wxUSE_THREADS
-    if ( !wxPendingEventsLocker )
-        return;
-#endif
-    
-    // ensure that we're the only thread to modify the pending events list
-    wxENTER_CRIT_SECT( *wxPendingEventsLocker );
+    const wxAppConsole * const app = GetInstance();
+
+    return app && app->m_mainLoop != NULL;
+}
+
+int wxAppConsoleBase::FilterEvent(wxEvent& WXUNUSED(event))
+{
+    // process the events normally by default
+    return Event_Skip;
+}
+
+void wxAppConsoleBase::DelayPendingEventHandler(wxEvtHandler* toDelay)
+{
+    wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+
+    // move the handler from the list of handlers with processable pending events
+    // to the list of handlers with pending events which needs to be processed later
+    m_handlersWithPendingEvents.Remove(toDelay);

 
 

-    if ( !wxPendingEvents )
+    if (m_handlersWithPendingDelayedEvents.Index(toDelay) == wxNOT_FOUND)
+        m_handlersWithPendingDelayedEvents.Add(toDelay);
+
+    wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
+}
+
+void wxAppConsoleBase::RemovePendingEventHandler(wxEvtHandler* toRemove)
+{
+    wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+
+    if (m_handlersWithPendingEvents.Index(toRemove) != wxNOT_FOUND)

     {
     {

-        wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
-        return;
+        m_handlersWithPendingEvents.Remove(toRemove);
+
+        // check that the handler was present only once in the list
+        wxASSERT_MSG( m_handlersWithPendingEvents.Index(toRemove) == wxNOT_FOUND,
+                        "Handler occurs twice in the m_handlersWithPendingEvents list!" );

     }
     }

+    //else: it wasn't in this list at all, it's ok

 
 

-    // iterate until the list becomes empty
-    wxList::compatibility_iterator node = wxPendingEvents->GetFirst();
-    while (node)
+    if (m_handlersWithPendingDelayedEvents.Index(toRemove) != wxNOT_FOUND)
+    {
+        m_handlersWithPendingDelayedEvents.Remove(toRemove);
+
+        // check that the handler was present only once in the list
+        wxASSERT_MSG( m_handlersWithPendingDelayedEvents.Index(toRemove) == wxNOT_FOUND,
+                        "Handler occurs twice in m_handlersWithPendingDelayedEvents list!" );
+    }
+    //else: it wasn't in this list at all, it's ok
+
+    wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
+}
+
+void wxAppConsoleBase::AppendPendingEventHandler(wxEvtHandler* toAppend)
+{
+    wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+
+    if ( m_handlersWithPendingEvents.Index(toAppend) == wxNOT_FOUND )
+        m_handlersWithPendingEvents.Add(toAppend);
+
+    wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);
+}
+
+bool wxAppConsoleBase::HasPendingEvents() const
+{
+    wxENTER_CRIT_SECT(const_cast<wxAppConsoleBase*>(this)->m_handlersWithPendingEventsLocker);
+
+    bool has = !m_handlersWithPendingEvents.IsEmpty();
+
+    wxLEAVE_CRIT_SECT(const_cast<wxAppConsoleBase*>(this)->m_handlersWithPendingEventsLocker);
+
+    return has;
+}
+
+void wxAppConsoleBase::SuspendProcessingOfPendingEvents()
+{
+    m_bDoPendingEventProcessing = false;
+}
+
+void wxAppConsoleBase::ResumeProcessingOfPendingEvents()
+{
+    m_bDoPendingEventProcessing = true;
+}
+
+void wxAppConsoleBase::ProcessPendingEvents()
+{
+    if ( m_bDoPendingEventProcessing )

     {
     {

-        wxEvtHandler *handler = (wxEvtHandler *)node->GetData();
-        wxPendingEvents->Erase(node);
+        wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+
+        wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(),
+                     "this helper list should be empty" );

 
 

-        // In ProcessPendingEvents(), new handlers might be add
-        // and we can safely leave the critical section here.
-        wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
-        
-        handler->ProcessPendingEvents();
+        // iterate until the list becomes empty: the handlers remove themselves
+        // from it when they don't have any more pending events
+        while (!m_handlersWithPendingEvents.IsEmpty())
+        {
+            // In ProcessPendingEvents(), new handlers might be added
+            // and we can safely leave the critical section here.
+            wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);

 
 

-        wxENTER_CRIT_SECT( *wxPendingEventsLocker );
+            // NOTE: we always call ProcessPendingEvents() on the first event handler
+            //       with pending events because handlers auto-remove themselves
+            //       from this list (see RemovePendingEventHandler) if they have no
+            //       more pending events.
+            m_handlersWithPendingEvents[0]->ProcessPendingEvents();

 
 

-        node = wxPendingEvents->GetFirst();
+            wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+        }
+
+        // now the wxHandlersWithPendingEvents is surely empty; however some event
+        // handlers may have moved themselves into wxHandlersWithPendingDelayedEvents
+        // because of a selective wxYield call in progress.
+        // Now we need to move them back to wxHandlersWithPendingEvents so the next
+        // call to this function has the chance of processing them:
+        if (!m_handlersWithPendingDelayedEvents.IsEmpty())
+        {
+            WX_APPEND_ARRAY(m_handlersWithPendingEvents, m_handlersWithPendingDelayedEvents);
+            m_handlersWithPendingDelayedEvents.Clear();
+        }
+
+        wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);

     }
     }

+}
+
+void wxAppConsoleBase::DeletePendingEvents()
+{
+    wxENTER_CRIT_SECT(m_handlersWithPendingEventsLocker);
+
+    wxCHECK_RET( m_handlersWithPendingDelayedEvents.IsEmpty(),
+                 "this helper list should be empty" );
+
+    for (unsigned int i=0; i<m_handlersWithPendingEvents.GetCount(); i++)
+        m_handlersWithPendingEvents[i]->DeletePendingEvents();

 
 

-    wxLEAVE_CRIT_SECT( *wxPendingEventsLocker );
+    m_handlersWithPendingEvents.Clear();
+
+    wxLEAVE_CRIT_SECT(m_handlersWithPendingEventsLocker);

 }
 
 }
 

-int wxAppConsole::FilterEvent(wxEvent& WXUNUSED(event))
+// ----------------------------------------------------------------------------
+// delayed objects destruction
+// ----------------------------------------------------------------------------
+
+bool wxAppConsoleBase::IsScheduledForDestruction(wxObject *object) const

 {
 {

-    // process the events normally by default
-    return -1;
+    return wxPendingDelete.Member(object);
+}
+
+void wxAppConsoleBase::ScheduleForDestruction(wxObject *object)
+{
+    if ( !UsesEventLoop() )
+    {
+        // we won't be able to delete it later so do it right now
+        delete object;
+        return;
+    }
+    //else: we either already have or will soon start an event loop
+
+    if ( !wxPendingDelete.Member(object) )
+        wxPendingDelete.Append(object);
+}
+
+void wxAppConsoleBase::DeletePendingObjects()
+{
+    wxList::compatibility_iterator node = wxPendingDelete.GetFirst();
+    while (node)
+    {
+        wxObject *obj = node->GetData();
+
+        // remove it from the list first so that if we get back here somehow
+        // during the object deletion (e.g. wxYield called from its dtor) we
+        // wouldn't try to delete it the second time
+        if ( wxPendingDelete.Member(obj) )
+            wxPendingDelete.Erase(node);
+
+        delete obj;
+
+        // Deleting one object may have deleted other pending
+        // objects, so start from beginning of list again.
+        node = wxPendingDelete.GetFirst();
+    }

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -319,16 +584,61 @@ int wxAppConsole::FilterEvent(wxEvent& WXUNUSED(event))
 #if wxUSE_EXCEPTIONS
 
 void
 #if wxUSE_EXCEPTIONS
 
 void

-wxAppConsole::HandleEvent(wxEvtHandler *handler,
-                          wxEventFunction func,
-                          wxEvent& event) const
+wxAppConsoleBase::HandleEvent(wxEvtHandler *handler,
+                              wxEventFunction func,
+                              wxEvent& event) const

 {
     // by default, simply call the handler
     (handler->*func)(event);
 }
 
 {
     // by default, simply call the handler
     (handler->*func)(event);
 }
 

-bool
-wxAppConsole::OnExceptionInMainLoop()
+void wxAppConsoleBase::CallEventHandler(wxEvtHandler *handler,
+                                        wxEventFunctor& functor,
+                                        wxEvent& event) const
+{
+    // If the functor holds a method then, for backward compatibility, call
+    // HandleEvent():
+    wxEventFunction eventFunction = functor.GetEvtMethod();
+
+    if ( eventFunction )
+        HandleEvent(handler, eventFunction, event);
+    else
+        functor(handler, event);
+}
+
+void wxAppConsoleBase::OnUnhandledException()
+{
+#ifdef __WXDEBUG__
+    // we're called from an exception handler so we can re-throw the exception
+    // to recover its type
+    wxString what;
+    try
+    {
+        throw;
+    }
+#if wxUSE_STL
+    catch ( std::exception& e )
+    {
+        what.Printf("std::exception of type \"%s\", what() = \"%s\"",
+                    typeid(e).name(), e.what());
+    }
+#endif // wxUSE_STL
+    catch ( ... )
+    {
+        what = "unknown exception";
+    }
+
+    wxMessageOutputBest().Printf(
+        "*** Caught unhandled %s; terminating\n", what
+    );
+#endif // __WXDEBUG__
+}
+
+// ----------------------------------------------------------------------------
+// exceptions support
+// ----------------------------------------------------------------------------
+
+bool wxAppConsoleBase::OnExceptionInMainLoop()

 {
     throw;
 
 {
     throw;
 


@@ -346,17 +656,17 @@ wxAppConsole::OnExceptionInMainLoop()
 
 #if wxUSE_CMDLINE_PARSER
 
 
 #if wxUSE_CMDLINE_PARSER
 

-#define OPTION_VERBOSE _T("verbose")
+#define OPTION_VERBOSE "verbose"

 
 

-void wxAppConsole::OnInitCmdLine(wxCmdLineParser& parser)
+void wxAppConsoleBase::OnInitCmdLine(wxCmdLineParser& parser)

 {
     // the standard command line options
     static const wxCmdLineEntryDesc cmdLineDesc[] =
     {
         {
             wxCMD_LINE_SWITCH,
 {
     // the standard command line options
     static const wxCmdLineEntryDesc cmdLineDesc[] =
     {
         {
             wxCMD_LINE_SWITCH,

-            _T("h"),
-            _T("help"),
+            "h",
+            "help",

             gettext_noop("show this help message"),
             wxCMD_LINE_VAL_NONE,
             wxCMD_LINE_OPTION_HELP
             gettext_noop("show this help message"),
             wxCMD_LINE_VAL_NONE,
             wxCMD_LINE_OPTION_HELP


@@ -365,7 +675,7 @@ void wxAppConsole::OnInitCmdLine(wxCmdLineParser& parser)
 #if wxUSE_LOG
         {
             wxCMD_LINE_SWITCH,
 #if wxUSE_LOG
         {
             wxCMD_LINE_SWITCH,

-            wxEmptyString,
+            NULL,

             OPTION_VERBOSE,
             gettext_noop("generate verbose log messages"),
             wxCMD_LINE_VAL_NONE,
             OPTION_VERBOSE,
             gettext_noop("generate verbose log messages"),
             wxCMD_LINE_VAL_NONE,


@@ -374,20 +684,13 @@ void wxAppConsole::OnInitCmdLine(wxCmdLineParser& parser)
 #endif // wxUSE_LOG
 
         // terminator
 #endif // wxUSE_LOG
 
         // terminator

-        {
-            wxCMD_LINE_NONE,
-            wxEmptyString,
-            wxEmptyString,
-            wxEmptyString,
-            wxCMD_LINE_VAL_NONE,
-            0x0
-        }
+        wxCMD_LINE_DESC_END

     };
 
     parser.SetDesc(cmdLineDesc);
 }
 
     };
 
     parser.SetDesc(cmdLineDesc);
 }
 

-bool wxAppConsole::OnCmdLineParsed(wxCmdLineParser& parser)
+bool wxAppConsoleBase::OnCmdLineParsed(wxCmdLineParser& parser)

 {
 #if wxUSE_LOG
     if ( parser.Found(OPTION_VERBOSE) )
 {
 #if wxUSE_LOG
     if ( parser.Found(OPTION_VERBOSE) )


@@ -401,14 +704,14 @@ bool wxAppConsole::OnCmdLineParsed(wxCmdLineParser& parser)
     return true;
 }
 
     return true;
 }
 

-bool wxAppConsole::OnCmdLineHelp(wxCmdLineParser& parser)
+bool wxAppConsoleBase::OnCmdLineHelp(wxCmdLineParser& parser)

 {
     parser.Usage();
 
     return false;
 }
 
 {
     parser.Usage();
 
     return false;
 }
 

-bool wxAppConsole::OnCmdLineError(wxCmdLineParser& parser)
+bool wxAppConsoleBase::OnCmdLineError(wxCmdLineParser& parser)

 {
     parser.Usage();
 
 {
     parser.Usage();
 


@@ -422,8 +725,8 @@ bool wxAppConsole::OnCmdLineError(wxCmdLineParser& parser)
 // ----------------------------------------------------------------------------
 
 /* static */
 // ----------------------------------------------------------------------------
 
 /* static */

-bool wxAppConsole::CheckBuildOptions(const char *optionsSignature,
-                                     const char *componentName)
+bool wxAppConsoleBase::CheckBuildOptions(const char *optionsSignature,
+                                         const char *componentName)

 {
 #if 0 // can't use wxLogTrace, not up and running yet
     printf("checking build options object '%s' (ptr %p) in '%s'\n",
 {
 #if 0 // can't use wxLogTrace, not up and running yet
     printf("checking build options object '%s' (ptr %p) in '%s'\n",


@@ -437,7 +740,7 @@ bool wxAppConsole::CheckBuildOptions(const char *optionsSignature,
         wxString progName = wxString::FromAscii(componentName);
         wxString msg;
 
         wxString progName = wxString::FromAscii(componentName);
         wxString msg;
 

-        msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."),
+        msg.Printf(wxT("Mismatch between the program and library build versions detected.\nThe library used %s,\nand %s used %s."),

                    lib.c_str(), progName.c_str(), prog.c_str());
 
         wxLogFatalError(msg.c_str());
                    lib.c_str(), progName.c_str(), prog.c_str());
 
         wxLogFatalError(msg.c_str());


@@ -445,32 +748,50 @@ bool wxAppConsole::CheckBuildOptions(const char *optionsSignature,
         // normally wxLogFatalError doesn't return
         return false;
     }
         // normally wxLogFatalError doesn't return
         return false;
     }

-#undef wxCMP

 
     return true;
 }
 
 
     return true;
 }
 

-#ifdef __WXDEBUG__
-
-void wxAppConsole::OnAssert(const wxChar *file,
-                            int line,
-                            const wxChar *cond,
-                            const wxChar *msg)
+void wxAppConsoleBase::OnAssertFailure(const wxChar *file,
+                                       int line,
+                                       const wxChar *func,
+                                       const wxChar *cond,
+                                       const wxChar *msg)

 {
 {

-    ShowAssertDialog(file, line, cond, msg, GetTraits());
+#if wxDEBUG_LEVEL
+    ShowAssertDialog(file, line, func, cond, msg, GetTraits());
+#else
+    // this function is still present even in debug level 0 build for ABI
+    // compatibility reasons but is never called there and so can simply do
+    // nothing in it
+    wxUnusedVar(file);
+    wxUnusedVar(line);
+    wxUnusedVar(func);
+    wxUnusedVar(cond);
+    wxUnusedVar(msg);
+#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL

 }
 
 }
 

-#endif // __WXDEBUG__
+void wxAppConsoleBase::OnAssert(const wxChar *file,
+                                int line,
+                                const wxChar *cond,
+                                const wxChar *msg)
+{
+    OnAssertFailure(file, line, NULL, cond, msg);
+}

 
 

-#if WXWIN_COMPATIBILITY_2_4
+// ----------------------------------------------------------------------------
+// Miscellaneous other methods
+// ----------------------------------------------------------------------------

 
 

-bool wxAppConsole::CheckBuildOptions(const wxBuildOptions& buildOptions)
+void wxAppConsoleBase::SetCLocale()

 {
 {

-    return CheckBuildOptions(buildOptions.m_signature, "your program");
+    // We want to use the user locale by default in GUI applications in order
+    // to show the numbers, dates &c in the familiar format -- and also accept
+    // this format on input (especially important for decimal comma/dot).
+    wxSetlocale(LC_ALL, "");

 }
 
 }
 

-#endif
-

 // ============================================================================
 // other classes implementations
 // ============================================================================
 // ============================================================================
 // other classes implementations
 // ============================================================================


@@ -508,12 +829,10 @@ wxRendererNative *wxConsoleAppTraitsBase::CreateRenderer()
     return NULL;
 }
 
     return NULL;
 }
 

-#ifdef __WXDEBUG__

 bool wxConsoleAppTraitsBase::ShowAssertDialog(const wxString& msg)
 {
     return wxAppTraitsBase::ShowAssertDialog(msg);
 }
 bool wxConsoleAppTraitsBase::ShowAssertDialog(const wxString& msg)
 {
     return wxAppTraitsBase::ShowAssertDialog(msg);
 }

-#endif

 
 bool wxConsoleAppTraitsBase::HasStderr()
 {
 
 bool wxConsoleAppTraitsBase::HasStderr()
 {


@@ -521,35 +840,140 @@ bool wxConsoleAppTraitsBase::HasStderr()
     return true;
 }
 
     return true;
 }
 

-void wxConsoleAppTraitsBase::ScheduleForDestroy(wxObject *object)
+// ----------------------------------------------------------------------------
+// wxAppTraits
+// ----------------------------------------------------------------------------
+
+#if wxUSE_THREADS
+void wxMutexGuiEnterImpl();
+void wxMutexGuiLeaveImpl();
+
+void wxAppTraitsBase::MutexGuiEnter()

 {
 {

-    delete object;
+    wxMutexGuiEnterImpl();

 }
 
 }
 

-void wxConsoleAppTraitsBase::RemoveFromPendingDelete(wxObject * WXUNUSED(object))
+void wxAppTraitsBase::MutexGuiLeave()

 {
 {

-    // nothing to do
+    wxMutexGuiLeaveImpl();

 }
 
 }
 

-#if wxUSE_SOCKETS
-GSocketGUIFunctionsTable* wxConsoleAppTraitsBase::GetSocketGUIFunctionsTable()
+void WXDLLIMPEXP_BASE wxMutexGuiEnter()

 {
 {

-    return NULL;
+    wxAppTraits * const traits = wxAppConsoleBase::GetTraitsIfExists();
+    if ( traits )
+        traits->MutexGuiEnter();

 }
 }

-#endif

 
 

-// ----------------------------------------------------------------------------
-// wxAppTraits
-// ----------------------------------------------------------------------------
+void WXDLLIMPEXP_BASE wxMutexGuiLeave()
+{
+    wxAppTraits * const traits = wxAppConsoleBase::GetTraitsIfExists();
+    if ( traits )
+        traits->MutexGuiLeave();
+}
+#endif // wxUSE_THREADS

 
 

-#ifdef __WXDEBUG__
+bool wxAppTraitsBase::ShowAssertDialog(const wxString& msgOriginal)
+{
+#if wxDEBUG_LEVEL
+    wxString msg;
+
+#if wxUSE_STACKWALKER
+    const wxString stackTrace = GetAssertStackTrace();
+    if ( !stackTrace.empty() )
+    {
+        msg << wxT("\n\nCall stack:\n") << stackTrace;
+
+        wxMessageOutputDebug().Output(msg);
+    }
+#endif // wxUSE_STACKWALKER
+
+    return DoShowAssertDialog(msgOriginal + msg);
+#else // !wxDEBUG_LEVEL
+    wxUnusedVar(msgOriginal);
+
+    return false;
+#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL
+}

 
 

-bool wxAppTraitsBase::ShowAssertDialog(const wxString& msg)
+#if wxUSE_STACKWALKER
+wxString wxAppTraitsBase::GetAssertStackTrace()

 {
 {

-    return DoShowAssertDialog(msg);
+#if wxDEBUG_LEVEL
+
+#if !defined(__WINDOWS__)
+    // on Unix stack frame generation may take some time, depending on the
+    // size of the executable mainly... warn the user that we are working
+    wxFprintf(stderr, "Collecting stack trace information, please wait...");
+    fflush(stderr);
+#endif // !__WINDOWS__
+
+
+    wxString stackTrace;
+
+    class StackDump : public wxStackWalker
+    {
+    public:
+        StackDump() { }
+
+        const wxString& GetStackTrace() const { return m_stackTrace; }
+
+    protected:
+        virtual void OnStackFrame(const wxStackFrame& frame)
+        {
+            m_stackTrace << wxString::Format
+                            (
+                              wxT("[%02d] "),
+                              wx_truncate_cast(int, frame.GetLevel())
+                            );
+
+            wxString name = frame.GetName();
+            if ( !name.empty() )
+            {
+                m_stackTrace << wxString::Format(wxT("%-40s"), name.c_str());
+            }
+            else
+            {
+                m_stackTrace << wxString::Format(wxT("%p"), frame.GetAddress());
+            }
+
+            if ( frame.HasSourceLocation() )
+            {
+                m_stackTrace << wxT('\t')
+                             << frame.GetFileName()
+                             << wxT(':')
+                             << frame.GetLine();
+            }
+
+            m_stackTrace << wxT('\n');
+        }
+
+    private:
+        wxString m_stackTrace;
+    };
+
+    // don't show more than maxLines or we could get a dialog too tall to be
+    // shown on screen: 20 should be ok everywhere as even with 15 pixel high
+    // characters it is still only 300 pixels...
+    static const int maxLines = 20;
+
+    StackDump dump;
+    dump.Walk(8, maxLines); // 8 is chosen to hide all OnAssert() calls
+    stackTrace = dump.GetStackTrace();
+
+    const int count = stackTrace.Freq(wxT('\n'));
+    for ( int i = 0; i < count - maxLines; i++ )
+        stackTrace = stackTrace.BeforeLast(wxT('\n'));
+
+    return stackTrace;
+#else // !wxDEBUG_LEVEL
+    // this function is still present for ABI-compatibility even in debug level
+    // 0 build but is not used there and so can simply do nothing
+    return wxString();
+#endif // wxDEBUG_LEVEL/!wxDEBUG_LEVEL

 }
 }

+#endif // wxUSE_STACKWALKER

 
 

-#endif // __WXDEBUG__

 
 // ============================================================================
 // global functions implementation
 
 // ============================================================================
 // global functions implementation


@@ -577,25 +1001,30 @@ void wxWakeUpIdle()
     //else: do nothing, what can we do?
 }
 
     //else: do nothing, what can we do?
 }
 

-#ifdef  __WXDEBUG__
-

 // wxASSERT() helper
 bool wxAssertIsEqual(int x, int y)
 {
     return x == y;
 }
 
 // wxASSERT() helper
 bool wxAssertIsEqual(int x, int y)
 {
     return x == y;
 }
 

+void wxAbort()
+{
+#ifdef __WXWINCE__
+    ExitThread(3);
+#else
+    abort();
+#endif
+}
+
+#if wxDEBUG_LEVEL
+

 // break into the debugger
 // break into the debugger

+#ifndef wxTrap
+

 void wxTrap()
 {
 void wxTrap()
 {

-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)

     DebugBreak();
     DebugBreak();

-#elif defined(__WXMAC__) && !defined(__DARWIN__)
-    #if __powerc
-        Debugger();
-    #else
-        SysBreak();
-    #endif

 #elif defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
     Debugger();
 #elif defined(__UNIX__)
 #elif defined(_MSL_USING_MW_C_HEADERS) && _MSL_USING_MW_C_HEADERS
     Debugger();
 #elif defined(__UNIX__)


@@ -605,53 +1034,133 @@ void wxTrap()
 #endif // Win/Unix
 }
 
 #endif // Win/Unix
 }
 

-void wxAssert(int cond,
-              const wxChar *szFile,
-              int nLine,
-              const wxChar *szCond,
-              const wxChar *szMsg)
-{
-    if ( !cond )
-        wxOnAssert(szFile, nLine, szCond, szMsg);
-}
+#endif // wxTrap already defined as a macro

 
 

-// this function is called when an assert fails
-void wxOnAssert(const wxChar *szFile,
-                int nLine,
-                const wxChar *szCond,
-                const wxChar *szMsg)
+// default assert handler
+static void
+wxDefaultAssertHandler(const wxString& file,
+                       int line,
+                       const wxString& func,
+                       const wxString& cond,
+                       const wxString& msg)

 {
 {

+    // If this option is set, we should abort immediately when assert happens.
+    if ( wxSystemOptions::GetOptionInt("exit-on-assert") )
+        wxAbort();
+

     // FIXME MT-unsafe
     // FIXME MT-unsafe

-    static bool s_bInAssert = false;
+    static int s_bInAssert = 0;

 
 

-    if ( s_bInAssert )
+    wxRecursionGuard guard(s_bInAssert);
+    if ( guard.IsInside() )

     {
     {

-        // He-e-e-e-elp!! we're trapped in endless loop
+        // can't use assert here to avoid infinite loops, so just trap

         wxTrap();
 
         wxTrap();
 

-        s_bInAssert = false;
-

         return;
     }
 
         return;
     }
 

-    s_bInAssert = true;
-

     if ( !wxTheApp )
     {
         // by default, show the assert dialog box -- we can't customize this
         // behaviour
     if ( !wxTheApp )
     {
         // by default, show the assert dialog box -- we can't customize this
         // behaviour

-        ShowAssertDialog(szFile, nLine, szCond, szMsg);
+        ShowAssertDialog(file, line, func, cond, msg);

     }
     else
     {
         // let the app process it as it wants
     }
     else
     {
         // let the app process it as it wants

-        wxTheApp->OnAssert(szFile, nLine, szCond, szMsg);
+        // FIXME-UTF8: use wc_str(), not c_str(), when ANSI build is removed
+        wxTheApp->OnAssertFailure(file.c_str(), line, func.c_str(),
+                                  cond.c_str(), msg.c_str());

     }
     }

+}

 
 

-    s_bInAssert = false;
+wxAssertHandler_t wxTheAssertHandler = wxDefaultAssertHandler;
+
+void wxSetDefaultAssertHandler()
+{
+    wxTheAssertHandler = wxDefaultAssertHandler;

 }
 
 }
 

-#endif // __WXDEBUG__
+void wxOnAssert(const wxString& file,
+                int line,
+                const wxString& func,
+                const wxString& cond,
+                const wxString& msg)
+{
+    wxTheAssertHandler(file, line, func, cond, msg);
+}
+
+void wxOnAssert(const wxString& file,
+                int line,
+                const wxString& func,
+                const wxString& cond)
+{
+    wxTheAssertHandler(file, line, func, cond, wxString());
+}
+
+void wxOnAssert(const wxChar *file,
+                int line,
+                const char *func,
+                const wxChar *cond,
+                const wxChar *msg)
+{
+    // this is the backwards-compatible version (unless we don't use Unicode)
+    // so it could be called directly from the user code and this might happen
+    // even when wxTheAssertHandler is NULL
+#if wxUSE_UNICODE
+    if ( wxTheAssertHandler )
+#endif // wxUSE_UNICODE
+        wxTheAssertHandler(file, line, func, cond, msg);
+}
+
+void wxOnAssert(const char *file,
+                int line,
+                const char *func,
+                const char *cond,
+                const wxString& msg)
+{
+    wxTheAssertHandler(file, line, func, cond, msg);
+}
+
+void wxOnAssert(const char *file,
+                int line,
+                const char *func,
+                const char *cond,
+                const wxCStrData& msg)
+{
+    wxTheAssertHandler(file, line, func, cond, msg);
+}
+
+#if wxUSE_UNICODE
+void wxOnAssert(const char *file,
+                int line,
+                const char *func,
+                const char *cond)
+{
+    wxTheAssertHandler(file, line, func, cond, wxString());
+}
+
+void wxOnAssert(const char *file,
+                int line,
+                const char *func,
+                const char *cond,
+                const char *msg)
+{
+    wxTheAssertHandler(file, line, func, cond, msg);
+}
+
+void wxOnAssert(const char *file,
+                int line,
+                const char *func,
+                const char *cond,
+                const wxChar *msg)
+{
+    wxTheAssertHandler(file, line, func, cond, msg);
+}
+#endif // wxUSE_UNICODE
+
+#endif // wxDEBUG_LEVEL

 
 // ============================================================================
 // private functions implementation
 
 // ============================================================================
 // private functions implementation


@@ -672,23 +1181,38 @@ static void LINKAGEMODE SetTraceMasks()
 #endif // wxUSE_LOG
 }
 
 #endif // wxUSE_LOG
 }
 

+#endif // __WXDEBUG__
+
+#if wxDEBUG_LEVEL
+
+bool wxTrapInAssert = false;
+
+static

 bool DoShowAssertDialog(const wxString& msg)
 {
 bool DoShowAssertDialog(const wxString& msg)
 {

-    // under MSW we can show the dialog even in the console mode
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
+    // under Windows we can show the dialog even in the console mode
+#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)

     wxString msgDlg(msg);
 
     wxString msgDlg(msg);
 

-    // this message is intentionally not translated -- it is for
-    // developpers only
+    // this message is intentionally not translated -- it is for developers
+    // only -- and the less code we use here, less is the danger of recursively
+    // asserting and dying

     msgDlg += wxT("\nDo you want to stop the program?\n")
               wxT("You can also choose [Cancel] to suppress ")
               wxT("further warnings.");
 
     msgDlg += wxT("\nDo you want to stop the program?\n")
               wxT("You can also choose [Cancel] to suppress ")
               wxT("further warnings.");
 

-    switch ( ::MessageBox(NULL, msgDlg, _T("wxWidgets Debug Alert"),
+    switch ( ::MessageBox(NULL, msgDlg.t_str(), wxT("wxWidgets Debug Alert"),

                           MB_YESNOCANCEL | MB_ICONSTOP ) )
     {
         case IDYES:
                           MB_YESNOCANCEL | MB_ICONSTOP ) )
     {
         case IDYES:

-            wxTrap();
+            // If we called wxTrap() directly from here, the programmer would
+            // see this function and a few more calls between his own code and
+            // it in the stack trace which would be perfectly useless and often
+            // confusing. So instead just set the flag here and let the macros
+            // defined in wx/debug.h call wxTrap() themselves, this ensures
+            // that the debugger will show the line in the user code containing
+            // the failing assert.
+            wxTrapInAssert = true;

             break;
 
         case IDCANCEL:
             break;
 
         case IDCANCEL:


@@ -697,92 +1221,21 @@ bool DoShowAssertDialog(const wxString& msg)
 
         //case IDNO: nothing to do
     }
 
         //case IDNO: nothing to do
     }

-#else // !__WXMSW__
-    wxFprintf(stderr, wxT("%s\n"), msg.c_str());
-    fflush(stderr);
-
-    // TODO: ask the user to enter "Y" or "N" on the console?
-    wxTrap();
-#endif // __WXMSW__/!__WXMSW__
+#else // !__WINDOWS__
+    wxUnusedVar(msg);
+#endif // __WINDOWS__/!__WINDOWS__

 
 

-    // continue with the asserts
+    // continue with the asserts by default

     return false;
 }
 
     return false;
 }
 

-#if wxUSE_STACKWALKER
-static wxString GetAssertStackTrace()
-{
-    wxString stackTrace;
-
-#if wxUSE_DBGHELP
-    // check that we can get the stack trace before trying to do it
-    if ( !wxDbgHelpDLL::Init() )
-        return stackTrace;
-#endif
-    
-    class StackDump : public wxStackWalker
-    {
-    public:
-        StackDump() { }
-
-        const wxString& GetStackTrace() const { return m_stackTrace; }
-
-    protected:
-        virtual void OnStackFrame(const wxStackFrame& frame)
-        {
-            m_stackTrace << wxString::Format(_T("[%02d] "), frame.GetLevel());
-
-            wxString name = frame.GetName();
-            if ( !name.empty() )
-            {
-                m_stackTrace << wxString::Format(_T("%-40s"), name.c_str());
-            }
-            else
-            {
-                m_stackTrace << wxString::Format
-                                (
-                                    _T("0x%08lx"),
-                                    (unsigned long)frame.GetAddress()
-                                );
-            }
-
-            if ( frame.HasSourceLocation() )
-            {
-                m_stackTrace << _T('\t')
-                             << frame.GetFileName()
-                             << _T(':')
-                             << frame.GetLine();
-            }
-
-            m_stackTrace << _T('\n');
-        }
-
-    private:
-        wxString m_stackTrace;
-    };
-
-    StackDump dump;
-    dump.Walk(5); // don't show OnAssert() call itself
-    stackTrace = dump.GetStackTrace();
-
-    // don't show more than maxLines or we could get a dialog too tall to be
-    // shown on screen: 20 should be ok everywhere as even with 15 pixel high
-    // characters it is still only 300 pixels...
-    static const int maxLines = 20;
-    const int count = stackTrace.Freq(wxT('\n'));
-    for ( int i = 0; i < count - maxLines; i++ )
-        stackTrace = stackTrace.BeforeLast(wxT('\n'));
-
-    return stackTrace;
-}
-#endif // wxUSE_STACKWALKER
-
-// show the assert modal dialog
+// show the standard assert dialog

 static
 static

-void ShowAssertDialog(const wxChar *szFile,
-                      int nLine,
-                      const wxChar *szCond,
-                      const wxChar *szMsg,
+void ShowAssertDialog(const wxString& file,
+                      int line,
+                      const wxString& func,
+                      const wxString& cond,
+                      const wxString& msgUser,

                       wxAppTraits *traits)
 {
     // this variable can be set to true to suppress "assert failure" messages
                       wxAppTraits *traits)
 {
     // this variable can be set to true to suppress "assert failure" messages


@@ -794,51 +1247,36 @@ void ShowAssertDialog(const wxChar *szFile,
     // make life easier for people using VC++ IDE by using this format: like
     // this, clicking on the message will take us immediately to the place of
     // the failed assert
     // make life easier for people using VC++ IDE by using this format: like
     // this, clicking on the message will take us immediately to the place of
     // the failed assert

-    msg.Printf(wxT("%s(%d): assert \"%s\" failed"), szFile, nLine, szCond);
+    msg.Printf(wxT("%s(%d): assert \"%s\" failed"), file, line, cond);
+
+    // add the function name, if any
+    if ( !func.empty() )
+        msg << wxT(" in ") << func << wxT("()");

 
 

-    if ( szMsg )
+    // and the message itself
+    if ( !msgUser.empty() )

     {
     {

-        msg << _T(": ") << szMsg;
+        msg << wxT(": ") << msgUser;

     }
     else // no message given
     {
     }
     else // no message given
     {

-        msg << _T('.');
-    }
-
-#if wxUSE_STACKWALKER
-    const wxString stackTrace = GetAssertStackTrace();
-    if ( !stackTrace.empty() )
-    {
-        msg << _T("\n\nCall stack:\n") << stackTrace;
+        msg << wxT('.');

     }
     }

-#endif // wxUSE_STACKWALKER

 
 #if wxUSE_THREADS
     // if we are not in the main thread, output the assert directly and trap
     // since dialogs cannot be displayed
     if ( !wxThread::IsMain() )
     {
 
 #if wxUSE_THREADS
     // if we are not in the main thread, output the assert directly and trap
     // since dialogs cannot be displayed
     if ( !wxThread::IsMain() )
     {

-        msg += wxT(" [in child thread]");
-
-#if defined(__WXMSW__) && !defined(__WXMICROWIN__)
-        msg << wxT("\r\n");
-        OutputDebugString(msg );
-#else
-        // send to stderr
-        wxFprintf(stderr, wxT("%s\n"), msg.c_str());
-        fflush(stderr);
-#endif
-        // He-e-e-e-elp!! we're asserting in a child thread
-        wxTrap();
+        msg += wxString::Format(" [in thread %lx]", wxThread::GetCurrentId());

     }
     }

-    else

 #endif // wxUSE_THREADS
 
 #endif // wxUSE_THREADS
 

+    // log the assert in any case
+    wxMessageOutputDebug().Output(msg);
+

     if ( !s_bNoAsserts )
     {
     if ( !s_bNoAsserts )
     {

-        // send it to the normal log destination
-        wxLogDebug(_T("%s"), msg.c_str());
-

         if ( traits )
         {
             // delegate showing assert dialog (if possible) to that class
         if ( traits )
         {
             // delegate showing assert dialog (if possible) to that class


@@ -852,5 +1290,4 @@ void ShowAssertDialog(const wxChar *szFile,
     }
 }
 
     }
 }
 

-#endif // __WXDEBUG__
-
+#endif // wxDEBUG_LEVEL