wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
- { DECLARE_EVENT_TABLE_TERMINATOR() };
+ { wxDECLARE_EVENT_TABLE_TERMINATOR() };
// wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors
// the memory leaks when using it, however this breaks re-initializing the
// library (i.e. repeated calls to wxInitialize/wxUninitialize) because the
// event tables won't be rebuilt the next time, so disable this by default
-#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
+#if wxUSE_MEMORY_TRACING
class wxEventTableEntryModule: public wxModule
{
IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
-#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
+#endif // wxUSE_MEMORY_TRACING
// ----------------------------------------------------------------------------
// global variables
const wxEventType wxEVT_FIRST = 10000;
const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
+const wxEventType wxEVT_NULL = wxNewEventType();
-DEFINE_EVENT_TYPE(wxEVT_NULL)
wxDEFINE_EVENT( wxEVT_IDLE, wxIdleEvent );
#endif // wxUSE_BASE
m_id = theId;
m_skipped = false;
m_callbackUserData = NULL;
+ m_handlerToProcessOnlyIn = NULL;
m_isCommandEvent = false;
m_propagationLevel = wxEVENT_PROPAGATE_NONE;
m_wasProcessed = false;
, m_timeStamp(src.m_timeStamp)
, m_id(src.m_id)
, m_callbackUserData(src.m_callbackUserData)
+ , m_handlerToProcessOnlyIn(NULL)
, m_propagationLevel(src.m_propagationLevel)
, m_skipped(src.m_skipped)
, m_isCommandEvent(src.m_isCommandEvent)
m_timeStamp = src.m_timeStamp;
m_id = src.m_id;
m_callbackUserData = src.m_callbackUserData;
+ m_handlerToProcessOnlyIn = NULL;
m_propagationLevel = src.m_propagationLevel;
m_skipped = src.m_skipped;
m_isCommandEvent = src.m_isCommandEvent;
}
}
-bool wxMouseEvent::ButtonIsDown(int but) const
-{
- switch (but)
- {
- default:
- wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
- // fall through
-
- case wxMOUSE_BTN_ANY:
- return LeftIsDown() || MiddleIsDown() || RightIsDown() || Aux1Down() || Aux2Down();
-
- case wxMOUSE_BTN_LEFT:
- return LeftIsDown();
-
- case wxMOUSE_BTN_MIDDLE:
- return MiddleIsDown();
-
- case wxMOUSE_BTN_RIGHT:
- return RightIsDown();
-
- case wxMOUSE_BTN_AUX1:
- return Aux1IsDown();
-
- case wxMOUSE_BTN_AUX2:
- return Aux2IsDown();
- }
-}
-
int wxMouseEvent::GetButton() const
{
for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ )
wxKeyEvent::wxKeyEvent(wxEventType type)
{
m_eventType = type;
- m_keyCode = 0;
+ m_keyCode = WXK_NONE;
#if wxUSE_UNICODE
- m_uniChar = 0;
+ m_uniChar = WXK_NONE;
#endif
}
#endif
}
+bool wxKeyEvent::IsKeyInCategory(int category) const
+{
+ switch ( GetKeyCode() )
+ {
+ case WXK_LEFT:
+ case WXK_RIGHT:
+ case WXK_UP:
+ case WXK_DOWN:
+ case WXK_NUMPAD_LEFT:
+ case WXK_NUMPAD_RIGHT:
+ case WXK_NUMPAD_UP:
+ case WXK_NUMPAD_DOWN:
+ return (category & WXK_CATEGORY_ARROW) != 0;
+
+ case WXK_PAGEDOWN:
+ case WXK_END:
+ case WXK_NUMPAD_PAGEUP:
+ case WXK_NUMPAD_PAGEDOWN:
+ return (category & WXK_CATEGORY_PAGING) != 0;
+
+ case WXK_HOME:
+ case WXK_PAGEUP:
+ case WXK_NUMPAD_HOME:
+ case WXK_NUMPAD_END:
+ return (category & WXK_CATEGORY_JUMP) != 0;
+
+ case WXK_TAB:
+ case WXK_NUMPAD_TAB:
+ return (category & WXK_CATEGORY_TAB) != 0;
+
+ case WXK_BACK:
+ case WXK_DELETE:
+ case WXK_NUMPAD_DELETE:
+ return (category & WXK_CATEGORY_CUT) != 0;
+
+ default:
+ return false;
+ }
+}
+
// ----------------------------------------------------------------------------
// wxWindowCreateEvent
// ----------------------------------------------------------------------------
delete eTTnode;
}
- delete[] m_eventTypeTable;
- m_eventTypeTable = NULL;
+ wxDELETEA(m_eventTypeTable);
m_size = 0;
}
-#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
+#if wxUSE_MEMORY_TRACING
// Clear all tables
void wxEventHashTable::ClearAll()
}
}
-#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
+#endif // wxUSE_MEMORY_TRACING
bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
{
bool wxEvtHandler::TryBefore(wxEvent& event)
{
-#ifdef WXWIN_COMPATIBILITY_2_8
+#if WXWIN_COMPATIBILITY_2_8
// call the old virtual function to keep the code overriding it working
return TryValidator(event);
#else
bool wxEvtHandler::TryAfter(wxEvent& event)
{
-#ifdef WXWIN_COMPATIBILITY_2_8
+ // We only want to pass the window to the application object once even if
+ // there are several chained handlers. Ensure that this is what happens by
+ // only calling DoTryApp() if there is no next handler (which would do it).
+ //
+ // Notice that, unlike simply calling TryAfter() on the last handler in the
+ // chain only from ProcessEvent(), this also works with wxWindow object in
+ // the middle of the chain: its overridden TryAfter() will still be called
+ // and propagate the event upwards the window hierarchy even if it's not
+ // the last one in the chain (which, admittedly, shouldn't happen often).
+ if ( GetNextHandler() )
+ return GetNextHandler()->TryAfter(event);
+
+#if WXWIN_COMPATIBILITY_2_8
// as above, call the old virtual function for compatibility
return TryParent(event);
#else
bool wxEvtHandler::ProcessEvent(wxEvent& event)
{
- // allow the application to hook into event processing
+ // The very first thing we do is to allow the application to hook into
+ // event processing in order to globally pre-process all events.
//
- // note that we should only do it if we're the first event handler called
+ // Note that we should only do it if we're the first event handler called
// to avoid calling FilterEvent() multiple times as the event goes through
- // the event handler chain and possibly upwards the window hierarchy
+ // the event handler chain and possibly upwards the window hierarchy.
if ( !event.WasProcessed() )
{
if ( wxTheApp )
}
}
- if ( ProcessEventHere(event) )
+ // Short circuit the event processing logic if we're requested to process
+ // this event in this handler only, see DoTryChain() for more details.
+ if ( event.ShouldProcessOnlyIn(this) )
+ return TryBeforeAndHere(event);
+
+
+ // Try to process the event in this handler itself.
+ if ( ProcessEventLocally(event) )
+ {
+ // It is possible that DoTryChain() called from ProcessEventLocally()
+ // returned true but the event was not really processed: this happens
+ // if a custom handler ignores the request to process the event in this
+ // handler only and in this case we should skip the post processing
+ // done in TryAfter() but still return the correct value ourselves to
+ // indicate whether we did or did not find a handler for this event.
+ return !event.GetSkipped();
+ }
+
+ // If we still didn't find a handler, propagate the event upwards the
+ // window chain and/or to the application object.
+ if ( TryAfter(event) )
return true;
- // pass the event to the next handler, notice that we shouldn't call
- // TryAfter() even if it doesn't handle the event as the last handler in
- // the chain will do it
- if ( GetNextHandler() )
- return GetNextHandler()->ProcessEvent(event);
- // propagate the event upwards the window chain and/or to the application
- // object if it wasn't processed at this level
- return TryAfter(event);
+ // No handler found anywhere, bail out.
+ return false;
}
-bool wxEvtHandler::ProcessEventHere(wxEvent& event)
+bool wxEvtHandler::ProcessEventLocally(wxEvent& event)
+{
+ // Try the hooks which should be called before our own handlers and this
+ // handler itself first. Notice that we should not call ProcessEvent() on
+ // this one as we're already called from it, which explains why we do it
+ // here and not in DoTryChain()
+ return TryBeforeAndHere(event) || DoTryChain(event);
+}
+
+bool wxEvtHandler::DoTryChain(wxEvent& event)
+{
+ for ( wxEvtHandler *h = GetNextHandler(); h; h = h->GetNextHandler() )
+ {
+ // We need to process this event at the level of this handler only
+ // right now, the pre-/post-processing was either already done by
+ // ProcessEvent() from which we were called or will be done by it when
+ // we return.
+ //
+ // However we must call ProcessEvent() and not TryHereOnly() because the
+ // existing code (including some in wxWidgets itself) expects the
+ // overridden ProcessEvent() in its custom event handlers pushed on a
+ // window to be called.
+ //
+ // So we must call ProcessEvent() but it must not do what it usually
+ // does. To resolve this paradox we set up a special flag inside the
+ // object itself to let ProcessEvent() know that it shouldn't do any
+ // pre/post-processing for this event if it gets it. Note that this
+ // only applies to this handler, if the event is passed to another one
+ // by explicitly calling its ProcessEvent(), pre/post-processing should
+ // be done as usual.
+ //
+ // Final complication is that if the implementation of ProcessEvent()
+ // called wxEvent::DidntHonourProcessOnlyIn() (as the gross hack that
+ // is wxScrollHelperEvtHandler::ProcessEvent() does) and ignored our
+ // request to process event in this handler only, we have to compensate
+ // for it by not processing the event further because this was already
+ // done by that rogue event handler.
+ wxEventProcessInHandlerOnly processInHandlerOnly(event, h);
+ if ( h->ProcessEvent(event) )
+ {
+ // Make sure "skipped" flag is not set as the event was really
+ // processed in this case. Normally it shouldn't be set anyhow but
+ // make sure just in case the user code does something strange.
+ event.Skip(false);
+
+ return true;
+ }
+
+ if ( !event.ShouldProcessOnlyIn(h) )
+ {
+ // Still return true to indicate that no further processing should
+ // be undertaken but ensure that "skipped" flag is set so that the
+ // caller knows that the event was not really processed.
+ event.Skip();
+
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool wxEvtHandler::TryHereOnly(wxEvent& event)
{
// If the event handler is disabled it doesn't process any events
if ( !GetEvtHandlerEnabled() )
return false;
- // Try the hooks which should be called before our own handlers
- if ( TryBefore(event) )
- return true;
-
// Handle per-instance dynamic event tables first
if ( m_dynamicEvents && SearchDynamicEventTable(event) )
return true;
return false;
}
-void wxEvtHandler::DoConnect(int id,
- int lastId,
- wxEventType eventType,
- wxEventFunctor *func,
- wxObject *userData)
+void wxEvtHandler::DoBind(int id,
+ int lastId,
+ wxEventType eventType,
+ wxEventFunctor *func,
+ wxObject *userData)
{
wxDynamicEventTableEntry *entry =
new wxDynamicEventTableEntry(eventType, id, lastId, func, userData);
}
bool
-wxEvtHandler::DoDisconnect(int id,
- int lastId,
- wxEventType eventType,
- const wxEventFunctor& func,
- wxObject *userData)
+wxEvtHandler::DoUnbind(int id,
+ int lastId,
+ wxEventType eventType,
+ const wxEventFunctor& func,
+ wxObject *userData)
{
if (!m_dynamicEvents)
return false;
if ((entry->m_id == id) &&
((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
- entry->m_fn->Matches(func) &&
+ entry->m_fn->IsMatching(func) &&
((entry->m_callbackUserData == userData) || !userData))
{
delete entry->m_callbackUserData;
projects / wxWidgets.git / blobdiff