]> git.saurik.com Git - wxWidgets.git/blobdiff - src/common/event.cpp
*** empty log message ***
[wxWidgets.git] / src / common / event.cpp
index b7cb5cafaf6e01a7c849a20729f88778dc7dca9b..1b71ae091290f6de885dfd848a8067281bdaa1f9 100644 (file)
@@ -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
 
 #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(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(wxIdleEvent, 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)
+
+    #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; }
 
 #endif // !USE_SHARED_LIBRARY
 
+// ----------------------------------------------------------------------------
+// global variables
+// ----------------------------------------------------------------------------
+
+// To put pending event handlers
+wxList *wxPendingEvents = (wxList *)NULL;
+
 #if wxUSE_THREADS
-/* To put pending event handlers */
-extern wxList *wxPendingEvents;
-extern wxCriticalSection *wxPendingEventsLocker;
+    // protects wxPendingEvents list
+    wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 #endif
 
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxEvent
+// ----------------------------------------------------------------------------
+
 /*
  * General wxWindows events, covering
  * all interesting things that might happen (button clicking, resizing,
@@ -102,7 +138,7 @@ wxEvent::wxEvent(int theId)
 
 void wxEvent::CopyObject(wxObject& object_dest) const
 {
-    wxEvent *obj = (wxEvent *)&object_dest; 
+    wxEvent *obj = (wxEvent *)&object_dest;
     wxObject::CopyObject(object_dest);
 
     obj->m_eventType = m_eventType;
@@ -114,6 +150,8 @@ void wxEvent::CopyObject(wxObject& object_dest) const
     obj->m_isCommandEvent = m_isCommandEvent;
 }
 
+#if wxUSE_GUI
+
 /*
  * Command events
  *
@@ -127,13 +165,13 @@ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
     m_extraLong = 0;
     m_commandInt = 0;
     m_id = theId;
-    m_commandString = (wxChar *) NULL;
+    m_commandString = wxEmptyString;
     m_isCommandEvent = TRUE;
 }
 
 void wxCommandEvent::CopyObject(wxObject& obj_d) const
 {
-    wxCommandEvent *obj = (wxCommandEvent *)&obj_d; 
+    wxCommandEvent *obj = (wxCommandEvent *)&obj_d;
 
     wxEvent::CopyObject(obj_d);
 
@@ -172,7 +210,7 @@ wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 
 void wxScrollWinEvent::CopyObject(wxObject& obj_d) const
 {
-    wxScrollWinEvent *obj = (wxScrollWinEvent*)&obj_d; 
+    wxScrollWinEvent *obj = (wxScrollWinEvent*)&obj_d;
 
     wxEvent::CopyObject(obj_d);
 
@@ -231,7 +269,7 @@ bool wxMouseEvent::ButtonDClick(int but) const
         case 3:
             return RightDClick();
         default:
-            wxFAIL_MSG(_T("invalid parameter in wxMouseEvent::ButtonDClick"));
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
     }
 
     return FALSE;
@@ -252,7 +290,7 @@ bool wxMouseEvent::ButtonDown(int but) const
         case 3:
             return RightDown();
         default:
-            wxFAIL_MSG(_T("invalid parameter in wxMouseEvent::ButtonDown"));
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
     }
 
     return FALSE;
@@ -272,7 +310,7 @@ bool wxMouseEvent::ButtonUp(int but) const
         case 3:
             return RightUp();
         default:
-            wxFAIL_MSG(_T("invalid parameter in wxMouseEvent::ButtonUp"));
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
     }
 
     return FALSE;
@@ -283,7 +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:
@@ -291,7 +329,7 @@ bool wxMouseEvent::Button(int but) const
         case 3:
             return (RightDown() || RightUp() || RightDClick());
         default:
-            wxFAIL_MSG(_T("invalid parameter in wxMouseEvent::Button"));
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
     }
 
     return FALSE;
@@ -309,7 +347,7 @@ bool wxMouseEvent::ButtonIsDown(int but) const
         case 3:
             return RightIsDown();
         default:
-            wxFAIL_MSG(_T("invalid parameter in wxMouseEvent::ButtonIsDown"));
+            wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
     }
 
     return FALSE;
@@ -408,7 +446,7 @@ void wxCloseEvent::CopyObject(wxObject& obj_d) const
 #endif
     obj->m_canVeto = m_canVeto;
 }
+
 void wxShowEvent::CopyObject(wxObject& obj_d) const
 {
     wxShowEvent *obj = (wxShowEvent *)&obj_d;
@@ -427,7 +465,7 @@ void wxJoystickEvent::CopyObject(wxObject& obj_d) const
     obj->m_buttonChange = m_buttonChange;
     obj->m_buttonState = m_buttonState;
     obj->m_joyStick = m_joyStick;
-} 
+}
 
 void wxDropFilesEvent::CopyObject(wxObject& obj_d) const
 {
@@ -437,15 +475,7 @@ void wxDropFilesEvent::CopyObject(wxObject& obj_d) const
     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 wxIdleEvent::CopyObject(wxObject& obj_d) const
-{
-    wxIdleEvent *obj = (wxIdleEvent *)&obj_d;
-    wxEvent::CopyObject(obj_d);
-
-    obj->m_requestMore = m_requestMore;
+    // destructor of the event.
 }
 
 void wxUpdateUIEvent::CopyObject(wxObject &obj_d) const
@@ -489,6 +519,16 @@ wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
     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;
+}
+
 /*
  * Event handler
  */
@@ -500,10 +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();
+    m_eventsLocker = new wxCriticalSection;
 #endif
-    m_pendingEvents = (wxList *) NULL;
 }
 
 wxEvtHandler::~wxEvtHandler()
@@ -528,62 +568,76 @@ wxEvtHandler::~wxEvtHandler()
         delete m_dynamicEvents;
     };
 
-#if wxUSE_THREADS
-    if (m_pendingEvents)
-      delete m_pendingEvents;
+    delete m_pendingEvents;
 
+#if wxUSE_THREADS
     delete m_eventsLocker;
 #endif
 }
 
 #if wxUSE_THREADS
 
-#ifdef __WXGTK__
-extern bool g_isIdle;
-extern void wxapp_install_idle_handler();
-#endif
-
 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
 {
-    wxEvent *event_main;
     wxCriticalSectionLocker locker(*m_eventsLocker);
 
     // check that we are really in a child thread
-    wxASSERT( !wxThread::IsMain() );
+    wxASSERT_MSG( !wxThread::IsMain(),
+                  wxT("use ProcessEvent() in main thread") );
 
-    if (m_pendingEvents == NULL)
-      m_pendingEvents = new wxList();
+    AddPendingEvent(event);
 
-    event_main = (wxEvent *)event.Clone();
+    return TRUE;
+}
+
+#endif // wxUSE_THREADS
+
+void wxEvtHandler::AddPendingEvent(wxEvent& event)
+{
+    if ( !m_pendingEvents )
+      m_pendingEvents = new wxList;
 
-    m_pendingEvents->Append(event_main);
+    wxEvent *event2 = (wxEvent *)event.Clone();
 
-    wxPendingEventsLocker->Enter();
+    m_pendingEvents->Append(event2);
+
+    wxENTER_CRIT_SECT(wxPendingEventsLocker);
+
+    if ( !wxPendingEvents )
+        wxPendingEvents = new wxList;
     wxPendingEvents->Append(this);
-    wxPendingEventsLocker->Leave();
 
+    wxLEAVE_CRIT_SECT(wxPendingEventsLocker);
+
+    // TODO: Wake up idle handler for the other platforms.
 #ifdef __WXGTK__
-    if (g_isIdle) 
+    extern bool g_isIdle;
+    extern void wxapp_install_idle_handler();
+    if ( g_isIdle )
         wxapp_install_idle_handler();
-#endif
-
-    return TRUE;
+#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()
 {
-    wxCriticalSectionLocker locker(*m_eventsLocker);
+    wxCRIT_SECT_LOCKER(locker, m_eventsLocker);
+
     wxNode *node = m_pendingEvents->First();
     wxEvent *event;
 
-    while (node != NULL) {
-      event = (wxEvent *)node->Data();
-      ProcessEvent(*event);
-      delete node;
-      node = m_pendingEvents->First();
+    while ( node )
+    {
+        event = (wxEvent *)node->Data();
+        ProcessEvent(*event);
+        delete node;
+        node = m_pendingEvents->First();
     }
 }
-#endif
 
 /*
  * Event table stuff
@@ -591,27 +645,28 @@ void wxEvtHandler::ProcessPendingEvents()
 
 bool wxEvtHandler::ProcessEvent(wxEvent& event)
 {
-    /* check that our flag corresponds to reality */
+#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 */
+    // An event handler can be enabled or disabled
     if ( GetEvtHandlerEnabled() )
     {
 #if wxUSE_THREADS
-       /* Check whether we are in a child thread. */
-        if (!wxThread::IsMain())
+        // Check whether we are in a child thread.
+        if ( !wxThread::IsMain() )
           return ProcessThreadEvent(event);
-#endif
-        /* Handle per-instance dynamic event tables first */
+#endif // wxUSE_THREADS
 
+        // Handle per-instance dynamic event tables first
         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
             return TRUE;
 
-        /* Then static per-class event tables */
-
+        // Then static per-class event tables
         const wxEventTable *table = GetEventTable();
 
-#if wxUSE_VALIDATORS
+#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.
@@ -653,6 +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
@@ -663,6 +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) )
@@ -734,7 +791,7 @@ void wxEvtHandler::Connect( int id, int lastId,
 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
 {
     wxCHECK_MSG( m_dynamicEvents, FALSE,
-                 _T("caller should check that we have dynamic events") );
+                 wxT("caller should check that we have dynamic events") );
 
     int commandId = event.GetId();
 
@@ -778,6 +835,8 @@ 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)
@@ -801,3 +860,4 @@ wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
     return focusWin;
 }
 
+#endif // wxUSE_GUI