X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2a47d3c193a8358f9be6a9249af28b6cb10eacff..07cf98cb8eb7625eeffc95e407a9fa1ad863b451:/src/common/event.cpp?ds=sidebyside

diff --git a/src/common/event.cpp b/src/common/event.cpp
index 713c0fdac6..1b71ae0912 100644
--- a/src/common/event.cpp
+++ b/src/common/event.cpp
@@ -6,9 +6,17 @@
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:       wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
 #ifdef __GNUG__
     #pragma implementation "event.h"
 #endif
@@ -22,43 +30,60 @@
 
 #ifndef WX_PRECOMP
     #include "wx/defs.h"
-    #include "wx/control.h"
-    #include "wx/utils.h"
     #include "wx/app.h"
-    #include "wx/dc.h"
+    #include "wx/list.h"
+
+    #if wxUSE_GUI
+        #include "wx/control.h"
+        #include "wx/utils.h"
+        #include "wx/dc.h"
+    #endif // wxUSE_GUI
 #endif
 
 #include "wx/event.h"
-#include "wx/validate.h"
+
+#if wxUSE_GUI
+    #include "wx/validate.h"
+#endif // wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
 
 #if !USE_SHARED_LIBRARY
     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
-    IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
-    IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
+
+    #if wxUSE_GUI
+        IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
+        IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
+    #endif // wxUSE_GUI
 
     const wxEventTable *wxEvtHandler::GetEventTable() const
         { return &wxEvtHandler::sm_eventTable; }
@@ -67,17 +92,30 @@
         { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 
     const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
-        { { 0, 0, 0,
-    #ifdef __SGI_CC__
-        // stupid SGI compiler --- offer aug 98
-        0L }
-    #else // !SGI CC
-        NULL }
-    #endif // SGI/!SGI
-        };
+        { { 0, 0, 0, (wxObjectEventFunction) NULL, (wxObject*) NULL } };
 
 #endif // !USE_SHARED_LIBRARY
 
+// ----------------------------------------------------------------------------
+// global variables
+// ----------------------------------------------------------------------------
+
+// To put pending event handlers
+wxList *wxPendingEvents = (wxList *)NULL;
+
+#if wxUSE_THREADS
+    // protects wxPendingEvents list
+    wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
+#endif
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxEvent
+// ----------------------------------------------------------------------------
+
 /*
  * General wxWindows events, covering
  * all interesting things that might happen (button clicking, resizing,
@@ -91,7 +129,6 @@ wxEvent::wxEvent(int theId)
 {
     m_eventType = wxEVT_NULL;
     m_eventObject = (wxObject *) NULL;
-    m_eventHandle = (char *) NULL;
     m_timeStamp = 0;
     m_id = theId;
     m_skipped = FALSE;
@@ -99,6 +136,22 @@ wxEvent::wxEvent(int theId)
     m_isCommandEvent = FALSE;
 }
 
+void wxEvent::CopyObject(wxObject& object_dest) const
+{
+    wxEvent *obj = (wxEvent *)&object_dest;
+    wxObject::CopyObject(object_dest);
+
+    obj->m_eventType = m_eventType;
+    obj->m_eventObject = m_eventObject;
+    obj->m_timeStamp = m_timeStamp;
+    obj->m_id = m_id;
+    obj->m_skipped = m_skipped;
+    obj->m_callbackUserData = m_callbackUserData;
+    obj->m_isCommandEvent = m_isCommandEvent;
+}
+
+#if wxUSE_GUI
+
 /*
  * Command events
  *
@@ -112,10 +165,22 @@ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
     m_extraLong = 0;
     m_commandInt = 0;
     m_id = theId;
-    m_commandString = (char *) NULL;
+    m_commandString = wxEmptyString;
     m_isCommandEvent = TRUE;
 }
 
+void wxCommandEvent::CopyObject(wxObject& obj_d) const
+{
+    wxCommandEvent *obj = (wxCommandEvent *)&obj_d;
+
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_clientData   = m_clientData;
+    obj->m_clientObject = m_clientObject;
+    obj->m_extraLong    = m_extraLong;
+    obj->m_commandInt   = m_commandInt;
+}
+
 /*
  * Scroll events
  */
@@ -130,6 +195,28 @@ wxScrollEvent::wxScrollEvent(wxEventType commandType,
     m_commandInt = pos;
 }
 
+/*
+ * ScrollWin events
+ */
+
+wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
+                                   int pos,
+                                   int orient)
+{
+    m_eventType = commandType;
+    m_extraLong = orient;
+    m_commandInt = pos;
+}
+
+void wxScrollWinEvent::CopyObject(wxObject& obj_d) const
+{
+    wxScrollWinEvent *obj = (wxScrollWinEvent*)&obj_d;
+
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_extraLong    = m_extraLong;
+    obj->m_commandInt   = m_commandInt;
+}
 
 /*
  * Mouse events
@@ -150,6 +237,23 @@ wxMouseEvent::wxMouseEvent(wxEventType commandType)
     m_y = 0;
 }
 
+void wxMouseEvent::CopyObject(wxObject& obj_d) const
+{
+    wxMouseEvent *obj = (wxMouseEvent *)&obj_d;
+
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_metaDown = m_metaDown;
+    obj->m_altDown = m_altDown;
+    obj->m_controlDown = m_controlDown;
+    obj->m_shiftDown = m_shiftDown;
+    obj->m_leftDown = m_leftDown;
+    obj->m_rightDown = m_rightDown;
+    obj->m_middleDown = m_middleDown;
+    obj->m_x = m_x;
+    obj->m_y = m_y;
+}
+
 // True if was a button dclick event (1 = left, 2 = middle, 3 = right)
 // or any button dclick event (but = -1)
 bool wxMouseEvent::ButtonDClick(int but) const
@@ -165,7 +269,7 @@ bool wxMouseEvent::ButtonDClick(int but) const
         case 3:
             return RightDClick();
         default:
-            wxFAIL_MSG("invalid parameter in wxMouseEvent::ButtonDClick");
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
     }
 
     return FALSE;
@@ -186,7 +290,7 @@ bool wxMouseEvent::ButtonDown(int but) const
         case 3:
             return RightDown();
         default:
-            wxFAIL_MSG("invalid parameter in wxMouseEvent::ButtonDown");
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
     }
 
     return FALSE;
@@ -206,7 +310,7 @@ bool wxMouseEvent::ButtonUp(int but) const
         case 3:
             return RightUp();
         default:
-            wxFAIL_MSG("invalid parameter in wxMouseEvent::ButtonUp");
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
     }
 
     return FALSE;
@@ -217,7 +321,7 @@ bool wxMouseEvent::Button(int but) const
 {
     switch (but) {
         case -1:
-            return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1)) ;
+            return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1));
         case 1:
             return (LeftDown() || LeftUp() || LeftDClick());
         case 2:
@@ -225,7 +329,7 @@ bool wxMouseEvent::Button(int but) const
         case 3:
             return (RightDown() || RightUp() || RightDClick());
         default:
-            wxFAIL_MSG("invalid parameter in wxMouseEvent::Button");
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
     }
 
     return FALSE;
@@ -243,7 +347,7 @@ bool wxMouseEvent::ButtonIsDown(int but) const
         case 3:
             return RightIsDown();
         default:
-            wxFAIL_MSG("invalid parameter in wxMouseEvent::ButtonIsDown");
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
     }
 
     return FALSE;
@@ -270,6 +374,159 @@ wxKeyEvent::wxKeyEvent(wxEventType type)
     m_metaDown = FALSE;
     m_altDown = FALSE;
     m_keyCode = 0;
+    m_scanCode = 0;
+}
+
+void wxKeyEvent::CopyObject(wxObject& obj_d) const
+{
+    wxKeyEvent *obj = (wxKeyEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_shiftDown   = m_shiftDown;
+    obj->m_controlDown = m_controlDown;
+    obj->m_metaDown    = m_metaDown;
+    obj->m_altDown     = m_altDown;
+    obj->m_keyCode     = m_keyCode;
+}
+
+
+/*
+ * Misc events
+ */
+
+void wxSizeEvent::CopyObject(wxObject& obj_d) const
+{
+    wxSizeEvent *obj = (wxSizeEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_size = m_size;
+}
+
+void wxMoveEvent::CopyObject(wxObject& obj_d) const
+{
+    wxMoveEvent *obj = (wxMoveEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_pos = m_pos;
+}
+
+void wxEraseEvent::CopyObject(wxObject& obj_d) const
+{
+    wxEraseEvent *obj = (wxEraseEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_dc = m_dc;
+}
+
+void wxActivateEvent::CopyObject(wxObject& obj_d) const
+{
+    wxActivateEvent *obj = (wxActivateEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_active = m_active;
+}
+
+void wxMenuEvent::CopyObject(wxObject& obj_d) const
+{
+    wxMenuEvent *obj = (wxMenuEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_menuId = m_menuId;
+}
+
+void wxCloseEvent::CopyObject(wxObject& obj_d) const
+{
+    wxCloseEvent *obj = (wxCloseEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_loggingOff = m_loggingOff;
+    obj->m_veto = m_veto;
+#if WXWIN_COMPATIBILITY
+    obj->m_force = m_force;
+#endif
+    obj->m_canVeto = m_canVeto;
+}
+
+void wxShowEvent::CopyObject(wxObject& obj_d) const
+{
+    wxShowEvent *obj = (wxShowEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_show = m_show;
+}
+
+void wxJoystickEvent::CopyObject(wxObject& obj_d) const
+{
+    wxJoystickEvent *obj = (wxJoystickEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_pos = m_pos;
+    obj->m_zPosition = m_zPosition;
+    obj->m_buttonChange = m_buttonChange;
+    obj->m_buttonState = m_buttonState;
+    obj->m_joyStick = m_joyStick;
+}
+
+void wxDropFilesEvent::CopyObject(wxObject& obj_d) const
+{
+    wxDropFilesEvent *obj = (wxDropFilesEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_noFiles = m_noFiles;
+    obj->m_pos = m_pos;
+    // TODO: Problem with obj->m_files. It should be deallocated by the
+    // destructor of the event.
+}
+
+void wxUpdateUIEvent::CopyObject(wxObject &obj_d) const
+{
+    wxUpdateUIEvent *obj = (wxUpdateUIEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_checked = m_checked;
+    obj->m_enabled = m_enabled;
+    obj->m_text = m_text;
+    obj->m_setText = m_setText;
+    obj->m_setChecked = m_setChecked;
+    obj->m_setEnabled = m_setEnabled;
+}
+
+void wxPaletteChangedEvent::CopyObject(wxObject &obj_d) const
+{
+    wxPaletteChangedEvent *obj = (wxPaletteChangedEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_changedWindow = m_changedWindow;
+}
+
+void wxQueryNewPaletteEvent::CopyObject(wxObject& obj_d) const
+{
+    wxQueryNewPaletteEvent *obj = (wxQueryNewPaletteEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_paletteRealized = m_paletteRealized;
+}
+
+wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
+                   : wxEvent(wxEVT_CREATE)
+{
+    SetEventObject(win);
+}
+
+wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
+                    : wxEvent(wxEVT_DESTROY)
+{
+    SetEventObject(win);
+}
+
+#endif // wxUSE_GUI
+
+void wxIdleEvent::CopyObject(wxObject& obj_d) const
+{
+    wxIdleEvent *obj = (wxIdleEvent *)&obj_d;
+    wxEvent::CopyObject(obj_d);
+
+    obj->m_requestMore = m_requestMore;
 }
 
 /*
@@ -283,6 +540,10 @@ wxEvtHandler::wxEvtHandler()
     m_enabled = TRUE;
     m_dynamicEvents = (wxList *) NULL;
     m_isWindow = FALSE;
+    m_pendingEvents = (wxList *) NULL;
+#if wxUSE_THREADS
+    m_eventsLocker = new wxCriticalSection;
+#endif
 }
 
 wxEvtHandler::~wxEvtHandler()
@@ -306,6 +567,76 @@ wxEvtHandler::~wxEvtHandler()
         }
         delete m_dynamicEvents;
     };
+
+    delete m_pendingEvents;
+
+#if wxUSE_THREADS
+    delete m_eventsLocker;
+#endif
+}
+
+#if wxUSE_THREADS
+
+bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
+{
+    wxCriticalSectionLocker locker(*m_eventsLocker);
+
+    // check that we are really in a child thread
+    wxASSERT_MSG( !wxThread::IsMain(),
+                  wxT("use ProcessEvent() in main thread") );
+
+    AddPendingEvent(event);
+
+    return TRUE;
+}
+
+#endif // wxUSE_THREADS
+
+void wxEvtHandler::AddPendingEvent(wxEvent& event)
+{
+    if ( !m_pendingEvents )
+      m_pendingEvents = new wxList;
+
+    wxEvent *event2 = (wxEvent *)event.Clone();
+
+    m_pendingEvents->Append(event2);
+
+    wxENTER_CRIT_SECT(wxPendingEventsLocker);
+
+    if ( !wxPendingEvents )
+        wxPendingEvents = new wxList;
+    wxPendingEvents->Append(this);
+
+    wxLEAVE_CRIT_SECT(wxPendingEventsLocker);
+
+    // TODO: Wake up idle handler for the other platforms.
+#ifdef __WXGTK__
+    extern bool g_isIdle;
+    extern void wxapp_install_idle_handler();
+    if ( g_isIdle )
+        wxapp_install_idle_handler();
+#elif wxUSE_GUI // this works for wxMSW, but may be for others too?
+    // might also send a dummy message to the top level window, this would
+    // probably be cleaner?
+    wxIdleEvent eventIdle;
+    wxTheApp->OnIdle(eventIdle);
+#endif // platform
+}
+
+void wxEvtHandler::ProcessPendingEvents()
+{
+    wxCRIT_SECT_LOCKER(locker, m_eventsLocker);
+
+    wxNode *node = m_pendingEvents->First();
+    wxEvent *event;
+
+    while ( node )
+    {
+        event = (wxEvent *)node->Data();
+        ProcessEvent(*event);
+        delete node;
+        node = m_pendingEvents->First();
+    }
 }
 
 /*
@@ -314,21 +645,28 @@ wxEvtHandler::~wxEvtHandler()
 
 bool wxEvtHandler::ProcessEvent(wxEvent& event)
 {
+#if wxUSE_GUI
     // check that our flag corresponds to reality
     wxASSERT( m_isWindow == IsKindOf(CLASSINFO(wxWindow)) );
+#endif // wxUSE_GUI
 
     // An event handler can be enabled or disabled
     if ( GetEvtHandlerEnabled() )
     {
-        // Handle per-instance dynamic event tables first
+#if wxUSE_THREADS
+        // Check whether we are in a child thread.
+        if ( !wxThread::IsMain() )
+          return ProcessThreadEvent(event);
+#endif // wxUSE_THREADS
 
+        // Handle per-instance dynamic event tables first
         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
             return TRUE;
 
         // Then static per-class event tables
-
         const wxEventTable *table = GetEventTable();
 
+#if wxUSE_GUI && wxUSE_VALIDATORS
         // Try the associated validator first, if this is a window.
         // Problem: if the event handler of the window has been replaced,
         // this wxEvtHandler may no longer be a window.
@@ -337,7 +675,7 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event)
         // THIS CAN BE CURED if PushEventHandler is used instead of
         // SetEventHandler, and then processing will be passed down the
         // chain of event handlers.
-        if ( m_isWindow )
+        if (m_isWindow)
         {
             wxWindow *win = (wxWindow *)this;
 
@@ -352,9 +690,10 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event)
                 }
             }
         }
+#endif
 
         // Search upwards through the inheritance hierarchy
-        while ( table )
+        while (table)
         {
             if ( SearchEventTable((wxEventTable&)*table, event) )
                 return TRUE;
@@ -369,6 +708,7 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event)
             return TRUE;
     }
 
+#if wxUSE_GUI
     // Carry on up the parent-child hierarchy,
     // but only if event is a command event: it wouldn't
     // make sense for a parent to receive a child's size event, for example
@@ -379,6 +719,7 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event)
         if (parent && !parent->IsBeingDeleted())
             return parent->GetEventHandler()->ProcessEvent(event);
     }
+#endif // wxUSE_GUI
 
     // Last try - application object.
     if ( wxTheApp && (this != wxTheApp) )
@@ -450,7 +791,7 @@ void wxEvtHandler::Connect( int id, int lastId,
 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
 {
     wxCHECK_MSG( m_dynamicEvents, FALSE,
-                 "caller should check that we have dynamic events" );
+                 wxT("caller should check that we have dynamic events") );
 
     int commandId = event.GetId();
 
@@ -494,3 +835,29 @@ bool wxEvtHandler::OnClose()
 }
 #endif // WXWIN_COMPATIBILITY
 
+#if wxUSE_GUI
+
+// Find a window with the focus, that is also a descendant of the given window.
+// This is used to determine the window to initially send commands to.
+wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
+{
+    // Process events starting with the window with the focus, if any.
+    wxWindow* focusWin = wxWindow::FindFocus();
+    wxWindow* win = focusWin;
+
+    // Check if this is a descendant of this frame.
+    // If not, win will be set to NULL.
+    while (win)
+    {
+        if (win == ancestor)
+            break;
+        else
+            win = win->GetParent();
+    }
+    if (win == (wxWindow*) NULL)
+        focusWin = (wxWindow*) NULL;
+
+    return focusWin;
+}
+
+#endif // wxUSE_GUI