X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ce4169a4d129fc6cd165b2e9ccc5cf5d48356020..1c68fb912d13e55b5627fdecfa8bb8f80e1ee23b:/src/common/event.cpp?ds=sidebyside diff --git a/src/common/event.cpp b/src/common/event.cpp index b7cb5cafaf..87eda81fdb 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 @@ -22,18 +30,31 @@ #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 !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) - IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) +#if wxUSE_GUI + #include "wx/validate.h" +#endif // wxUSE_GUI + +// ---------------------------------------------------------------------------- +// wxWin macros +// ---------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) +IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) +IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) + +#if wxUSE_GUI IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent) @@ -55,31 +76,45 @@ 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) + IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent) +#endif // wxUSE_GUI + +const wxEventTable *wxEvtHandler::GetEventTable() const + { return &wxEvtHandler::sm_eventTable; } + +const wxEventTable wxEvtHandler::sm_eventTable = + { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] }; - const wxEventTable *wxEvtHandler::GetEventTable() const - { return &wxEvtHandler::sm_eventTable; } +const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = + { { 0, 0, 0, (wxObjectEventFunction) NULL, (wxObject*) NULL } }; - const wxEventTable wxEvtHandler::sm_eventTable = - { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] }; - const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = - { { 0, 0, 0, (wxObjectEventFunction) NULL, (wxObject*) NULL } }; +// ---------------------------------------------------------------------------- +// global variables +// ---------------------------------------------------------------------------- -#endif // !USE_SHARED_LIBRARY +// 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 +137,7 @@ 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 +149,8 @@ void wxEvent::CopyObject(wxObject& object_dest) const obj->m_isCommandEvent = m_isCommandEvent; } +#if wxUSE_GUI + /* * Command events * @@ -127,20 +164,34 @@ 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); - obj->m_clientData = m_clientData; - obj->m_clientObject = m_clientObject; - obj->m_extraLong = m_extraLong; - obj->m_commandInt = m_commandInt; + obj->m_clientData = m_clientData; + obj->m_clientObject = m_clientObject; + obj->m_extraLong = m_extraLong; + obj->m_commandInt = m_commandInt; + obj->m_commandString = m_commandString; +} + +/* + * Notify events + */ + +void wxNotifyEvent::CopyObject(wxObject& obj_d) const +{ + wxNotifyEvent *obj = (wxNotifyEvent *)&obj_d; + + wxEvent::CopyObject(obj_d); + + if (!m_bAllow) obj->Veto(); } /* @@ -172,7 +223,7 @@ 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 +282,7 @@ 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 +303,7 @@ 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 +323,7 @@ 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 +334,7 @@ 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 +342,7 @@ 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 +360,7 @@ 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; @@ -344,6 +395,10 @@ void wxKeyEvent::CopyObject(wxObject& obj_d) const wxKeyEvent *obj = (wxKeyEvent *)&obj_d; wxEvent::CopyObject(obj_d); + obj->m_x = m_x; + obj->m_y = m_y; + obj->m_keyCode = m_keyCode; + obj->m_shiftDown = m_shiftDown; obj->m_controlDown = m_controlDown; obj->m_metaDown = m_metaDown; @@ -408,7 +463,7 @@ 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 +482,7 @@ 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 +492,7 @@ 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 @@ -478,17 +525,27 @@ void wxQueryNewPaletteEvent::CopyObject(wxObject& obj_d) const } wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win) - : wxEvent(wxEVT_CREATE) { + SetEventType(wxEVT_CREATE); SetEventObject(win); } wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win) - : wxEvent(wxEVT_DESTROY) { + SetEventType(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; +} + /* * Event handler */ @@ -500,10 +557,12 @@ wxEvtHandler::wxEvtHandler() m_enabled = TRUE; m_dynamicEvents = (wxList *) NULL; m_isWindow = FALSE; + m_pendingEvents = (wxList *) NULL; #if wxUSE_THREADS - m_eventsLocker = new wxCriticalSection(); +# if !defined(__VISAGECPP__) + m_eventsLocker = new wxCriticalSection; +# endif #endif - m_pendingEvents = (wxList *) NULL; } wxEvtHandler::~wxEvtHandler() @@ -528,62 +587,107 @@ wxEvtHandler::~wxEvtHandler() delete m_dynamicEvents; }; -#if wxUSE_THREADS - if (m_pendingEvents) - delete m_pendingEvents; + delete m_pendingEvents; +#if wxUSE_THREADS +# if !defined(__VISAGECPP__) delete m_eventsLocker; +# endif #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; +} - m_pendingEvents->Append(event_main); +#endif // wxUSE_THREADS - wxPendingEventsLocker->Enter(); - wxPendingEvents->Append(this); - wxPendingEventsLocker->Leave(); +void wxEvtHandler::AddPendingEvent(wxEvent& event) +{ + // 1) Add event to list of pending events of this event handler -#ifdef __WXGTK__ - if (g_isIdle) - wxapp_install_idle_handler(); +#if defined(__VISAGECPP__) + wxENTER_CRIT_SECT( m_eventsLocker); +#else + wxENTER_CRIT_SECT( *m_eventsLocker); #endif - return TRUE; + if ( !m_pendingEvents ) + m_pendingEvents = new wxList; + + wxEvent *event2 = (wxEvent *)event.Clone(); + + m_pendingEvents->Append(event2); + +#if defined(__VISAGECPP__) + wxLEAVE_CRIT_SECT( m_eventsLocker); +#else + wxLEAVE_CRIT_SECT( *m_eventsLocker); +#endif + + // 2) Add this event handler to list of event handlers that + // have pending events. + + wxENTER_CRIT_SECT(*wxPendingEventsLocker); + + if ( !wxPendingEvents ) + wxPendingEvents = new wxList; + wxPendingEvents->Append(this); + + wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); + + // 3) Inform the system that new pending events are somwehere, + // and that these should be processed in idle time. + wxWakeUpIdle(); } void wxEvtHandler::ProcessPendingEvents() { - wxCriticalSectionLocker locker(*m_eventsLocker); +#if defined(__VISAGECPP__) + wxENTER_CRIT_SECT( m_eventsLocker); +#else + wxENTER_CRIT_SECT( *m_eventsLocker); +#endif + wxNode *node = m_pendingEvents->First(); - wxEvent *event; + while ( node ) + { + wxEvent *event = (wxEvent *)node->Data(); + delete node; - while (node != NULL) { - event = (wxEvent *)node->Data(); - ProcessEvent(*event); - delete node; - node = m_pendingEvents->First(); + // In ProcessEvent, new events might get added and + // we can safely leave the crtical section here. +#if defined(__VISAGECPP__) + wxLEAVE_CRIT_SECT( m_eventsLocker); +#else + wxLEAVE_CRIT_SECT( *m_eventsLocker); +#endif + ProcessEvent(*event); + delete event; +#if defined(__VISAGECPP__) + wxENTER_CRIT_SECT( m_eventsLocker); +#else + wxENTER_CRIT_SECT( *m_eventsLocker); +#endif + + node = m_pendingEvents->First(); } -} + +#if defined(__VISAGECPP__) + wxLEAVE_CRIT_SECT( m_eventsLocker); +#else + wxLEAVE_CRIT_SECT( *m_eventsLocker); #endif +} /* * Event table stuff @@ -591,27 +695,35 @@ 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()) + +#if 0 +/* + What is this? When using GUI threads, a non main + threads can send an event and process it itself. + This breaks GTK's GUI threads, so please explain. +*/ + + // Check whether we are in a child thread. + if ( !wxThread::IsMain() ) return ProcessThreadEvent(event); #endif - /* Handle per-instance dynamic event tables first */ + // 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 +765,7 @@ 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 +776,7 @@ 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) ) @@ -682,37 +796,48 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event) bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event) { - int i = 0; - int commandId = event.GetId(); + wxEventType eventType = event.GetEventType(); + int eventId = event.GetId(); - // BC++ doesn't like while (table.entries[i].m_fn) - -#ifdef __SC__ - while (table.entries[i].m_fn != 0) + // BC++ doesn't like testing for m_fn without != 0 + for ( int i = 0; table.entries[i].m_fn != 0; i++ ) + { + // the line using reference exposes a bug in gcc: although it _seems_ + // to work, it leads to weird crashes later on during program + // execution +#ifdef __GNUG__ + wxEventTableEntry entry = table.entries[i]; #else - while (table.entries[i].m_fn != 0L) + const wxEventTableEntry& entry = table.entries[i]; #endif - { - if ((event.GetEventType() == table.entries[i].m_eventType) && - (table.entries[i].m_id == -1 || // Match, if event spec says any id will do (id == -1) - (table.entries[i].m_lastId == -1 && commandId == table.entries[i].m_id) || - (table.entries[i].m_lastId != -1 && - (commandId >= table.entries[i].m_id && commandId <= table.entries[i].m_lastId)))) + + // match only if the event type is the same and the id is either -1 in + // the event table (meaning "any") or the event id matches the id + // specified in the event table either exactly or by falling into + // range between first and last + if ( eventType == entry.m_eventType ) { - event.Skip(FALSE); - event.m_callbackUserData = table.entries[i].m_callbackUserData; + int tableId1 = entry.m_id, + tableId2 = entry.m_lastId; - (this->*((wxEventFunction) (table.entries[i].m_fn)))(event); + if ( (tableId1 == -1) || + (tableId2 == -1 && eventId == tableId1) || + (tableId2 != -1 && + (eventId >= tableId1 && eventId <= tableId2)) ) + { + event.Skip(FALSE); + event.m_callbackUserData = entry.m_callbackUserData; - if ( event.GetSkipped() ) - return FALSE; - else - return TRUE; + (this->*((wxEventFunction) (entry.m_fn)))(event); + + return !event.GetSkipped(); + } } - i++; } + return FALSE; } + void wxEvtHandler::Connect( int id, int lastId, wxEventType eventType, wxObjectEventFunction func, @@ -731,10 +856,37 @@ void wxEvtHandler::Connect( int id, int lastId, m_dynamicEvents->Append( (wxObject*) entry ); } +bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, + wxObjectEventFunction func, + wxObject *userData ) +{ + if (!m_dynamicEvents) + return FALSE; + + wxNode *node = m_dynamicEvents->First(); + while (node) + { + wxEventTableEntry *entry = (wxEventTableEntry*)node->Data(); + if ((entry->m_id == id) && + ((entry->m_lastId == lastId) || (lastId == -1)) && + ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) && + ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) && + ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL))) + { + if (entry->m_callbackUserData) delete entry->m_callbackUserData; + m_dynamicEvents->DeleteNode( node ); + delete entry; + return TRUE; + } + node = node->Next(); + } + return FALSE; +} + 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 +930,8 @@ 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 +955,4 @@ wxWindow* wxFindFocusDescendant(wxWindow* ancestor) return focusWin; } +#endif // wxUSE_GUI