X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/75299490cde1b98fce6b452564b535da03d88c79..6362d82b3ed82aa6795e4ad03160820f94c9e4d4:/src/common/event.cpp?ds=sidebyside diff --git a/src/common/event.cpp b/src/common/event.cpp index 55291a9dd3..590c3adf3e 100644 --- a/src/common/event.cpp +++ b/src/common/event.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: event.cpp +// Name: src/common/event.cpp // Purpose: Event classes // Author: Julian Smart // Modified by: @@ -17,17 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__) -// Some older compilers (such as EMX) cannot handle -// #pragma interface/implementation correctly, iff -// #pragma implementation is used in _two_ translation -// units (as created by e.g. event.cpp compiled for -// libwx_base and event.cpp compiled for libwx_gui_core). -// So we must not use those pragmas for those compilers in -// such files. - #pragma implementation "event.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -35,26 +24,33 @@ #pragma hdrstop #endif +#include "wx/event.h" +#include "wx/evtloop.h" + #ifndef WX_PRECOMP - #include "wx/defs.h" - #include "wx/app.h" #include "wx/list.h" + #include "wx/app.h" + #include "wx/utils.h" + #include "wx/stopwatch.h" + #include "wx/module.h" #if wxUSE_GUI + #include "wx/window.h" #include "wx/control.h" - #include "wx/utils.h" #include "wx/dc.h" + #include "wx/textctrl.h" + #include "wx/validate.h" #endif // wxUSE_GUI #endif -#include "wx/event.h" +#include "wx/thread.h" -#if wxUSE_GUI - #include "wx/validate.h" -#if wxUSE_STOPWATCH - #include "wx/stopwatch.h" -#endif -#endif // wxUSE_GUI +#if wxUSE_BASE + #include "wx/ptr_scpd.h" + + wxDECLARE_SCOPED_PTR(wxEvent, wxEventPtr) + wxDEFINE_SCOPED_PTR(wxEvent, wxEventPtr) +#endif // wxUSE_BASE // ---------------------------------------------------------------------------- // wxWin macros @@ -63,10 +59,10 @@ #if wxUSE_BASE IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) + IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) #endif // wxUSE_BASE #if wxUSE_GUI - IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent) @@ -101,6 +97,8 @@ IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent) IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent) + IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureLostEvent, wxEvent) + IMPLEMENT_DYNAMIC_CLASS(wxClipboardTextEvent, wxCommandEvent) #endif // wxUSE_GUI #if wxUSE_BASE @@ -119,20 +117,41 @@ wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable); const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] = { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) }; + +// wxUSE_MEMORY_TRACING considers memory freed from the static objects dtors +// leaked, so we need to manually clean up all event tables before checking for +// 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 + +class wxEventTableEntryModule: public wxModule +{ +public: + wxEventTableEntryModule() { } + virtual bool OnInit() { return true; } + virtual void OnExit() { wxEventHashTable::ClearAll(); } + + DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule) +}; + +IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule) + +#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING + // ---------------------------------------------------------------------------- // global variables // ---------------------------------------------------------------------------- -// To put pending event handlers -wxList *wxPendingEvents = (wxList *)NULL; +// List containing event handlers with pending events (each handler can occur +// at most once here) +wxList *wxPendingEvents = NULL; #if wxUSE_THREADS // protects wxPendingEvents list - wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL; + wxCriticalSection *wxPendingEventsLocker = NULL; #endif -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - // common event types are defined here, other event types are defined by the // components which use them @@ -142,15 +161,12 @@ const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000; DEFINE_EVENT_TYPE(wxEVT_NULL) DEFINE_EVENT_TYPE(wxEVT_IDLE) DEFINE_EVENT_TYPE(wxEVT_SOCKET) - -#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES +DEFINE_EVENT_TYPE(wxEVT_TIMER) #endif // wxUSE_BASE #if wxUSE_GUI -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED) @@ -167,9 +183,8 @@ DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED) DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER) DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED) - -// Sockets and timers send events, too -DEFINE_EVENT_TYPE(wxEVT_TIMER) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED) // Mouse event types DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN) @@ -188,6 +203,12 @@ DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS) DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS) DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS) DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL) +DEFINE_EVENT_TYPE(wxEVT_AUX1_DOWN) +DEFINE_EVENT_TYPE(wxEVT_AUX1_UP) +DEFINE_EVENT_TYPE(wxEVT_AUX1_DCLICK) +DEFINE_EVENT_TYPE(wxEVT_AUX2_DOWN) +DEFINE_EVENT_TYPE(wxEVT_AUX2_UP) +DEFINE_EVENT_TYPE(wxEVT_AUX2_DCLICK) // Non-client mouse events DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN) @@ -225,7 +246,7 @@ DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP) DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN) DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK) DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE) -DEFINE_EVENT_TYPE(wxEVT_SCROLL_ENDSCROLL) +DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED) // Scroll events from wxWindow DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP) @@ -242,11 +263,13 @@ DEFINE_EVENT_TYPE(wxEVT_SIZE) DEFINE_EVENT_TYPE(wxEVT_SIZING) DEFINE_EVENT_TYPE(wxEVT_MOVE) DEFINE_EVENT_TYPE(wxEVT_MOVING) +DEFINE_EVENT_TYPE(wxEVT_MOVE_START) +DEFINE_EVENT_TYPE(wxEVT_MOVE_END) DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW) DEFINE_EVENT_TYPE(wxEVT_END_SESSION) DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION) +DEFINE_EVENT_TYPE(wxEVT_HIBERNATE) DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP) -DEFINE_EVENT_TYPE(wxEVT_POWER) DEFINE_EVENT_TYPE(wxEVT_ACTIVATE) DEFINE_EVENT_TYPE(wxEVT_CREATE) DEFINE_EVENT_TYPE(wxEVT_DESTROY) @@ -254,6 +277,7 @@ DEFINE_EVENT_TYPE(wxEVT_SHOW) DEFINE_EVENT_TYPE(wxEVT_ICONIZE) DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE) DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED) +DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_LOST) DEFINE_EVENT_TYPE(wxEVT_PAINT) DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND) DEFINE_EVENT_TYPE(wxEVT_NC_PAINT) @@ -278,6 +302,11 @@ DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM) DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG) DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI) +// Clipboard events +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_COPY) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_CUT) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_PASTE) + // Generic command events // Note: a click is a higher-level event than button down/up DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK) @@ -292,12 +321,12 @@ DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER) DEFINE_EVENT_TYPE(wxEVT_HELP) DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP) -#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES - #endif // wxUSE_GUI #if wxUSE_BASE +wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL; + // ============================================================================ // implementation // ============================================================================ @@ -319,7 +348,7 @@ int wxNewEventType() // ---------------------------------------------------------------------------- /* - * General wxWindows events, covering + * General wxWidgets events, covering * all interesting things that might happen (button clicking, resizing, * setting text in widgets, etc.). * @@ -333,14 +362,14 @@ wxEvent::wxEvent(int theId, wxEventType commandType ) m_eventObject = (wxObject *) NULL; m_timeStamp = 0; m_id = theId; - m_skipped = FALSE; + m_skipped = false; m_callbackUserData = (wxObject *) NULL; - m_isCommandEvent = FALSE; + m_isCommandEvent = false; m_propagationLevel = wxEVENT_PROPAGATE_NONE; } -wxEvent::wxEvent(const wxEvent &src) - : wxObject() +wxEvent::wxEvent(const wxEvent& src) + : wxObject(src) , m_eventObject(src.m_eventObject) , m_eventType(src.m_eventType) , m_timeStamp(src.m_timeStamp) @@ -352,6 +381,22 @@ wxEvent::wxEvent(const wxEvent &src) { } +wxEvent& wxEvent::operator=(const wxEvent& src) +{ + wxObject::operator=(src); + + m_eventObject = src.m_eventObject; + m_eventType = src.m_eventType; + m_timeStamp = src.m_timeStamp; + m_id = src.m_id; + m_callbackUserData = src.m_callbackUserData; + m_propagationLevel = src.m_propagationLevel; + m_skipped = src.m_skipped; + m_isCommandEvent = src.m_isCommandEvent; + + return *this; +} + #endif // wxUSE_BASE #if wxUSE_GUI @@ -361,6 +406,11 @@ wxEvent::wxEvent(const wxEvent &src) * */ +#ifdef __VISUALC__ + // 'this' : used in base member initializer list (for m_commandString) + #pragma warning(disable:4355) +#endif + wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) : wxEvent(theId, commandType) { @@ -368,12 +418,34 @@ wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId) m_clientObject = (wxClientData *) NULL; m_extraLong = 0; m_commandInt = 0; - m_isCommandEvent = TRUE; + m_isCommandEvent = true; // the command events are propagated upwards by default m_propagationLevel = wxEVENT_PROPAGATE_MAX; } +#ifdef __VISUALC__ + #pragma warning(default:4355) +#endif + +wxString wxCommandEvent::GetString() const +{ + if (m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject) + { + return m_cmdString; + } + else + { +#if wxUSE_TEXTCTRL + wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl); + if ( txt ) + return txt->GetValue(); + else +#endif // wxUSE_TEXTCTRL + return m_cmdString; + } +} + /* * UI update events */ @@ -394,27 +466,27 @@ bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win) if (win && (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED && ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0))) - return FALSE; + return false; if (sm_updateInterval == -1) - return FALSE; - else if (sm_updateInterval == 0) - return TRUE; - else - { + return false; + + if (sm_updateInterval == 0) + return true; + #if wxUSE_STOPWATCH && wxUSE_LONGLONG - wxLongLong now = wxGetLocalTimeMillis(); - if (now > (sm_lastUpdate + sm_updateInterval)) - { - return TRUE; - } + wxLongLong now = wxGetLocalTimeMillis(); + if (now > (sm_lastUpdate + sm_updateInterval)) + { + return true; + } + + return false; #else - // If we don't have wxStopWatch or wxLongLong, we - // should err on the safe side and update now anyway. - return TRUE; + // If we don't have wxStopWatch or wxLongLong, we + // should err on the safe side and update now anyway. + return true; #endif - } - return FALSE; } // Reset the update time to provide a delay until the next @@ -433,25 +505,6 @@ void wxUpdateUIEvent::ResetUpdateTime() #endif } -/* - * Idle events - */ - -wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL; - -// Can we send an idle event? -bool wxIdleEvent::CanSend(wxWindow* win) -{ - // Don't update if we've switched global updating off - // and this window doesn't support updates. - if (win && - (GetMode() == wxIDLE_PROCESS_SPECIFIED && - ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0))) - return FALSE; - - return TRUE; -} - /* * Scroll events */ @@ -487,23 +540,31 @@ wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType, wxMouseEvent::wxMouseEvent(wxEventType commandType) { m_eventType = commandType; - m_metaDown = FALSE; - m_altDown = FALSE; - m_controlDown = FALSE; - m_shiftDown = FALSE; - m_leftDown = FALSE; - m_rightDown = FALSE; - m_middleDown = FALSE; + m_x = 0; m_y = 0; + + m_leftDown = false; + m_middleDown = false; + m_rightDown = false; + m_aux1Down = false; + m_aux2Down = false; + + m_clickCount = -1; + m_wheelRotation = 0; m_wheelDelta = 0; m_linesPerAction = 0; + m_wheelAxis = 0; } void wxMouseEvent::Assign(const wxMouseEvent& event) { - m_eventType = event.m_eventType; + wxEvent::operator=(event); + + // Borland C++ 5.82 doesn't compile an explicit call to an implicitly + // defined operator=() so need to do it this way: + *static_cast(this) = event; m_x = event.m_x; m_y = event.m_y; @@ -511,122 +572,167 @@ void wxMouseEvent::Assign(const wxMouseEvent& event) m_leftDown = event.m_leftDown; m_middleDown = event.m_middleDown; m_rightDown = event.m_rightDown; - - m_controlDown = event.m_controlDown; - m_shiftDown = event.m_shiftDown; - m_altDown = event.m_altDown; - m_metaDown = event.m_metaDown; + m_aux1Down = event.m_aux1Down; + m_aux2Down = event.m_aux2Down; m_wheelRotation = event.m_wheelRotation; m_wheelDelta = event.m_wheelDelta; m_linesPerAction = event.m_linesPerAction; + m_wheelAxis = event.m_wheelAxis; } -// True if was a button dclick event (1 = left, 2 = middle, 3 = right) -// or any button dclick event (but = -1) +// return true if was a button dclick event bool wxMouseEvent::ButtonDClick(int but) const { switch (but) { - case -1: - return (LeftDClick() || MiddleDClick() || RightDClick()); - case 1: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick")); + // fall through + + case wxMOUSE_BTN_ANY: + return (LeftDClick() || MiddleDClick() || RightDClick() || + Aux1DClick() || Aux2DClick()); + + case wxMOUSE_BTN_LEFT: return LeftDClick(); - case 2: + + case wxMOUSE_BTN_MIDDLE: return MiddleDClick(); - case 3: + + case wxMOUSE_BTN_RIGHT: return RightDClick(); - default: - wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick")); - } - return FALSE; + case wxMOUSE_BTN_AUX1: + return Aux1DClick(); + + case wxMOUSE_BTN_AUX2: + return Aux2DClick(); + } } -// True if was a button down event (1 = left, 2 = middle, 3 = right) -// or any button down event (but = -1) +// return true if was a button down event bool wxMouseEvent::ButtonDown(int but) const { switch (but) { - case -1: - return (LeftDown() || MiddleDown() || RightDown()); - case 1: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown")); + // fall through + + case wxMOUSE_BTN_ANY: + return (LeftDown() || MiddleDown() || RightDown() || + Aux1Down() || Aux2Down()); + + case wxMOUSE_BTN_LEFT: return LeftDown(); - case 2: + + case wxMOUSE_BTN_MIDDLE: return MiddleDown(); - case 3: + + case wxMOUSE_BTN_RIGHT: return RightDown(); - default: - wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown")); - } - return FALSE; + case wxMOUSE_BTN_AUX1: + return Aux1Down(); + + case wxMOUSE_BTN_AUX2: + return Aux2Down(); + } } -// True if was a button up event (1 = left, 2 = middle, 3 = right) -// or any button up event (but = -1) +// return true if was a button up event bool wxMouseEvent::ButtonUp(int but) const { switch (but) { - case -1: - return (LeftUp() || MiddleUp() || RightUp()); - case 1: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp")); + // fall through + + case wxMOUSE_BTN_ANY: + return (LeftUp() || MiddleUp() || RightUp() || + Aux1Up() || Aux2Up()); + + case wxMOUSE_BTN_LEFT: return LeftUp(); - case 2: + + case wxMOUSE_BTN_MIDDLE: return MiddleUp(); - case 3: + + case wxMOUSE_BTN_RIGHT: return RightUp(); - default: - wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp")); - } - return FALSE; + case wxMOUSE_BTN_AUX1: + return Aux1Up(); + + case wxMOUSE_BTN_AUX2: + return Aux2Up(); + } } -// True if the given button is currently changing state +// return true if the given button is currently changing state bool wxMouseEvent::Button(int but) const { switch (but) { - case -1: - return (ButtonUp(-1) || ButtonDown(-1) || ButtonDClick(-1)); - case 1: - return (LeftDown() || LeftUp() || LeftDClick()); - case 2: - return (MiddleDown() || MiddleUp() || MiddleDClick()); - case 3: - return (RightDown() || RightUp() || RightDClick()); default: wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button")); - } + // fall through + + case wxMOUSE_BTN_ANY: + return ButtonUp(wxMOUSE_BTN_ANY) || + ButtonDown(wxMOUSE_BTN_ANY) || + ButtonDClick(wxMOUSE_BTN_ANY); + + case wxMOUSE_BTN_LEFT: + return LeftDown() || LeftUp() || LeftDClick(); + + case wxMOUSE_BTN_MIDDLE: + return MiddleDown() || MiddleUp() || MiddleDClick(); - return FALSE; + case wxMOUSE_BTN_RIGHT: + return RightDown() || RightUp() || RightDClick(); + + case wxMOUSE_BTN_AUX1: + return Aux1Down() || Aux1Up() || Aux1DClick(); + + case wxMOUSE_BTN_AUX2: + return Aux2Down() || Aux2Up() || Aux2DClick(); + } } bool wxMouseEvent::ButtonIsDown(int but) const { switch (but) { - case -1: - return (LeftIsDown() || MiddleIsDown() || RightIsDown()); - case 1: + 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 2: + + case wxMOUSE_BTN_MIDDLE: return MiddleIsDown(); - case 3: + + case wxMOUSE_BTN_RIGHT: return RightIsDown(); - default: - wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown")); - } - return FALSE; + case wxMOUSE_BTN_AUX1: + return Aux1IsDown(); + + case wxMOUSE_BTN_AUX2: + return Aux2IsDown(); + } } int wxMouseEvent::GetButton() const { - for ( int i = 1; i <= 3; i++ ) + for ( int i = 1; i < wxMOUSE_BTN_MAX; i++ ) { if ( Button(i) ) { @@ -634,7 +740,7 @@ int wxMouseEvent::GetButton() const } } - return -1; + return wxMOUSE_BTN_NONE; } // Find the logical position of the event given the DC @@ -653,10 +759,6 @@ wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const wxKeyEvent::wxKeyEvent(wxEventType type) { m_eventType = type; - m_shiftDown = FALSE; - m_controlDown = FALSE; - m_metaDown = FALSE; - m_altDown = FALSE; m_keyCode = 0; m_scanCode = 0; #if wxUSE_UNICODE @@ -665,17 +767,14 @@ wxKeyEvent::wxKeyEvent(wxEventType type) } wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) - : wxEvent(evt) + : wxEvent(evt), + wxKeyboardState(evt) { m_x = evt.m_x; m_y = evt.m_y; m_keyCode = evt.m_keyCode; - m_controlDown = evt.m_controlDown; - m_shiftDown = evt.m_shiftDown; - m_altDown = evt.m_altDown; - m_metaDown = evt.m_metaDown; m_scanCode = evt.m_scanCode; m_rawCode = evt.m_rawCode; m_rawFlags = evt.m_rawFlags; @@ -685,11 +784,6 @@ wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) #endif } -long wxKeyEvent::KeyCode() const -{ - return m_keyCode; -} - wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win) { SetEventType(wxEVT_CREATE); @@ -708,6 +802,23 @@ wxChildFocusEvent::wxChildFocusEvent(wxWindow *win) SetEventObject(win); } +// ---------------------------------------------------------------------------- +// wxHelpEvent +// ---------------------------------------------------------------------------- + +/* static */ +wxHelpEvent::Origin wxHelpEvent::GuessOrigin(Origin origin) +{ + if ( origin == Origin_Unknown ) + { + // assume that the event comes from the help button if it's not from + // keyboard and that pressing F1 always results in the help event + origin = wxGetKeyState(WXK_F1) ? Origin_Keyboard : Origin_HelpButton; + } + + return origin; +} + #endif // wxUSE_GUI @@ -717,38 +828,74 @@ wxChildFocusEvent::wxChildFocusEvent(wxWindow *win) // wxEventHashTable // ---------------------------------------------------------------------------- -static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not to big not to small... +static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small... + +wxEventHashTable* wxEventHashTable::sm_first = NULL; wxEventHashTable::wxEventHashTable(const wxEventTable &table) : m_table(table), - m_rebuildHash(TRUE) + m_rebuildHash(true) { AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE); + + m_next = sm_first; + if (m_next) + m_next->m_previous = this; + sm_first = this; } wxEventHashTable::~wxEventHashTable() { - size_t i; - for(i = 0; i < m_size; i++) + if (m_next) + m_next->m_previous = m_previous; + if (m_previous) + m_previous->m_next = m_next; + if (sm_first == this) + sm_first = m_next; + + Clear(); +} + +void wxEventHashTable::Clear() +{ + for ( size_t i = 0; i < m_size; i++ ) { EventTypeTablePointer eTTnode = m_eventTypeTable[i]; - if (eTTnode) - { - delete eTTnode; - } + delete eTTnode; } delete[] m_eventTypeTable; + m_eventTypeTable = NULL; + + m_size = 0; } +#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING + +// Clear all tables +void wxEventHashTable::ClearAll() +{ + wxEventHashTable* table = sm_first; + while (table) + { + table->Clear(); + table = table->m_next; + } +} + +#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING + bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self) { if (m_rebuildHash) { InitHashTable(); - m_rebuildHash = FALSE; + m_rebuildHash = false; } + if (!m_eventTypeTable) + return false; + // Find all entries for the given event type. wxEventType eventType = event.GetEventType(); const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size]; @@ -756,36 +903,21 @@ bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self) { // Now start the search for an event handler // that can handle an event with the given ID. - int eventId = event.GetId(); - const wxEventTableEntryPointerArray &eventEntryTable = eTTnode->eventEntryTable; + const wxEventTableEntryPointerArray& + eventEntryTable = eTTnode->eventEntryTable; - size_t n; - size_t count = eventEntryTable.GetCount(); - for (n = 0; n < count; n++) + const size_t count = eventEntryTable.GetCount(); + for (size_t n = 0; n < count; n++) { - const wxEventTableEntry* entry = eventEntryTable[n]; - int tableId1 = entry->m_id, - tableId2 = entry->m_lastId; - - if ((tableId1 == -1) || - (tableId2 == -1 && tableId1 == eventId) || - (tableId2 != -1 && - (eventId >= tableId1 && eventId <= tableId2))) + if ( wxEvtHandler:: + ProcessEventIfMatches(*eventEntryTable[n], self, event) ) { - event.Skip(FALSE); - event.m_callbackUserData = entry->m_callbackUserData; - - (self->*((wxEventFunction) (entry->m_fn)))(event); - - if (!event.GetSkipped()) - return TRUE; + return true; } } - - return FALSE; } - return FALSE; + return false; } void wxEventHashTable::InitHashTable() @@ -821,6 +953,10 @@ void wxEventHashTable::InitHashTable() void wxEventHashTable::AddEntry(const wxEventTableEntry &entry) { + // This might happen 'accidentally' as the app is exiting + if (!m_eventTypeTable) + return; + EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size]; EventTypeTablePointer eTTnode = *peTTnode; @@ -901,14 +1037,10 @@ wxEvtHandler::wxEvtHandler() { m_nextHandler = (wxEvtHandler *) NULL; m_previousHandler = (wxEvtHandler *) NULL; - m_enabled = TRUE; + m_enabled = true; m_dynamicEvents = (wxList *) NULL; m_pendingEvents = (wxList *) NULL; -#if wxUSE_THREADS -# if !defined(__VISAGECPP__) - m_eventsLocker = new wxCriticalSection; -# endif -#endif + // no client data (yet) m_clientData = NULL; m_clientDataType = wxClientData_None; @@ -925,15 +1057,26 @@ wxEvtHandler::~wxEvtHandler() if (m_dynamicEvents) { - wxList::iterator it = m_dynamicEvents->begin(), - en = m_dynamicEvents->end(); - for (;it != en; ++it) + for ( wxList::iterator it = m_dynamicEvents->begin(), + end = m_dynamicEvents->end(); + it != end; + ++it ) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)*it; -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it; -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + + // Remove ourselves from sink destructor notifications + // (this has usually been been done, in wxTrackable destructor) + wxEvtHandler *eventSink = entry->m_eventSink; + if ( eventSink ) + { + wxEventConnectionRef * const + evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + { + eventSink->RemoveNode(evtConnRef); + delete evtConnRef; + } + } if (entry->m_callbackUserData) delete entry->m_callbackUserData; @@ -942,22 +1085,31 @@ wxEvtHandler::~wxEvtHandler() delete m_dynamicEvents; }; + if (m_pendingEvents) + m_pendingEvents->DeleteContents(true); delete m_pendingEvents; + // Remove us from wxPendingEvents if necessary. + if ( wxPendingEvents ) + { #if wxUSE_THREADS -# if !defined(__VISAGECPP__) - delete m_eventsLocker; -# endif + if (wxPendingEventsLocker) + wxENTER_CRIT_SECT(*wxPendingEventsLocker); +#endif - // Remove us from wxPendingEvents if necessary. - if(wxPendingEventsLocker) - wxENTER_CRIT_SECT(*wxPendingEventsLocker); - if ( wxPendingEvents ) { - wxPendingEvents->DeleteObject(this); - } - if(wxPendingEventsLocker) - wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); + if ( wxPendingEvents->DeleteObject(this) ) + { + // check that we were present only once in the list + wxASSERT_MSG( !wxPendingEvents->Find(this), + "Handler occurs twice in wxPendingEvents list" ); + } + //else: we weren't in this list at all, it's ok + +#if wxUSE_THREADS + if (wxPendingEventsLocker) + wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); #endif + } // we only delete object data, not untyped if ( m_clientDataType == wxClientData_Object ) @@ -966,7 +1118,7 @@ wxEvtHandler::~wxEvtHandler() #if wxUSE_THREADS -bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) +bool wxEvtHandler::ProcessThreadEvent(const wxEvent& event) { // check that we are really in a child thread wxASSERT_MSG( !wxThread::IsMain(), @@ -974,38 +1126,22 @@ bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) AddPendingEvent(event); - return TRUE; + return true; } #endif // wxUSE_THREADS -void wxEvtHandler::AddPendingEvent(wxEvent& event) +void wxEvtHandler::QueueEvent(wxEvent *event) { - // 1) Add event to list of pending events of this event handler + wxCHECK_RET( event, "NULL event can't be posted" ); - wxEvent *eventCopy = event.Clone(); - - // we must be able to copy the events here so the event class must - // implement Clone() properly instead of just providing a NULL stab for it - wxCHECK_RET( eventCopy, - _T("events of this type aren't supposed to be posted") ); - -#if defined(__VISAGECPP__) - wxENTER_CRIT_SECT( m_eventsLocker); -#else - wxENTER_CRIT_SECT( *m_eventsLocker); -#endif + // 1) Add this event to our list of pending events + wxENTER_CRIT_SECT( m_pendingEventsLock ); if ( !m_pendingEvents ) m_pendingEvents = new wxList; - m_pendingEvents->Append(eventCopy); - -#if defined(__VISAGECPP__) - wxLEAVE_CRIT_SECT( m_eventsLocker); -#else - wxLEAVE_CRIT_SECT( *m_eventsLocker); -#endif + m_pendingEvents->Append(event); // 2) Add this event handler to list of event handlers that // have pending events. @@ -1014,60 +1150,119 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event) if ( !wxPendingEvents ) wxPendingEvents = new wxList; - wxPendingEvents->Append(this); + if ( !wxPendingEvents->Find(this) ) + wxPendingEvents->Append(this); wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); - // 3) Inform the system that new pending events are somwehere, + // only release m_pendingEventsLock now because otherwise there is a race + // condition as described in the ticket #9093: we could process the event + // just added to m_pendingEvents in our ProcessPendingEvents() below before + // we had time to append this pointer to wxPendingEvents list; thus + // breaking the invariant that a handler should be in the list iff it has + // any pending events to process + wxLEAVE_CRIT_SECT( m_pendingEventsLock ); + + // 3) Inform the system that new pending events are somewhere, // and that these should be processed in idle time. wxWakeUpIdle(); } void wxEvtHandler::ProcessPendingEvents() { -#if defined(__VISAGECPP__) - wxENTER_CRIT_SECT( m_eventsLocker); -#else - wxENTER_CRIT_SECT( *m_eventsLocker); -#endif + wxENTER_CRIT_SECT( m_pendingEventsLock ); + + // this method is only called by wxApp if this handler does have + // pending events + wxCHECK_RET( m_pendingEvents && !m_pendingEvents->IsEmpty(), + "should have pending events if called" ); wxList::compatibility_iterator node = m_pendingEvents->GetFirst(); - while ( node ) - { - wxEvent *event = (wxEvent *)node->GetData(); - m_pendingEvents->Erase(node); + wxEventPtr event(static_cast(node->GetData())); - // 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); + // it's important we remove event from list before processing it, else a + // nested event loop, for example from a modal dialog, might process the + // same event again. + m_pendingEvents->Erase(node); + + // if there are no more pending events left, we don't need to stay in this + // list + if ( m_pendingEvents->IsEmpty() ) + { +#if wxUSE_THREADS + if (wxPendingEventsLocker) + wxENTER_CRIT_SECT(*wxPendingEventsLocker); #endif - ProcessEvent(*event); - delete event; -#if defined(__VISAGECPP__) - wxENTER_CRIT_SECT( m_eventsLocker); -#else - wxENTER_CRIT_SECT( *m_eventsLocker); + wxPendingEvents->DeleteObject(this); +#if wxUSE_THREADS + if (wxPendingEventsLocker) + wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); #endif - - node = m_pendingEvents->GetFirst(); } -#if defined(__VISAGECPP__) - wxLEAVE_CRIT_SECT( m_eventsLocker); -#else - wxLEAVE_CRIT_SECT( *m_eventsLocker); -#endif + wxLEAVE_CRIT_SECT( m_pendingEventsLock ); + + ProcessEvent(*event); + + // careful: this object could have been deleted by the event handler + // executed by the above ProcessEvent() call, so we can't access any fields + // of this object any more } /* * Event table stuff */ +/* static */ bool +wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry, + wxEvtHandler *handler, + wxEvent& event) +{ + int tableId1 = entry.m_id, + tableId2 = entry.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 ((tableId1 == wxID_ANY) || + (tableId2 == wxID_ANY && tableId1 == event.GetId()) || + (tableId2 != wxID_ANY && + (event.GetId() >= tableId1 && event.GetId() <= tableId2))) + { + event.Skip(false); + event.m_callbackUserData = entry.m_callbackUserData; + +#if wxUSE_EXCEPTIONS + if ( wxTheApp ) + { + // call the handler via wxApp method which allows the user to catch + // any exceptions which may be thrown by any handler in the program + // in one place + wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event); + } + else +#endif // wxUSE_EXCEPTIONS + { + // no need for an extra virtual function call + (handler->*((wxEventFunction) (entry.m_fn)))(event); + } + + if (!event.GetSkipped()) + return true; + } + + return false; +} bool wxEvtHandler::TryParent(wxEvent& event) { + if ( GetNextHandler() ) + { + // the next handler will pass it to wxTheApp if it doesn't process it, + // so return from here to avoid doing it again + return GetNextHandler()->TryParent(event); + } + if ( wxTheApp && (this != wxTheApp) ) { // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always @@ -1076,11 +1271,11 @@ bool wxEvtHandler::TryParent(wxEvent& event) if ( event.GetEventType() != wxEVT_IDLE ) { if ( wxTheApp->ProcessEvent(event) ) - return TRUE; + return true; } } - return FALSE; + return false; } bool wxEvtHandler::ProcessEvent(wxEvent& event) @@ -1099,103 +1294,118 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event) //else: proceed normally } + if ( ProcessEventHere(event) ) + return true; + + // propagate the event upwards the window chain and/or to the application + // object if it wasn't processed at this level + return TryParent(event); +} + +bool wxEvtHandler::ProcessEventHere(wxEvent& event) +{ // An event handler can be enabled or disabled if ( GetEvtHandlerEnabled() ) { // if we have a validator, it has higher priority than our own event // table if ( TryValidator(event) ) - return TRUE; + return true; // Handle per-instance dynamic event tables first if ( m_dynamicEvents && SearchDynamicEventTable(event) ) - return TRUE; + return true; // Then static per-class event tables if ( GetEventHashTable().HandleEvent(event, this) ) - return TRUE; + return true; } // Try going down the event handler chain - if ( GetNextHandler() ) + if ( GetNextHandler() && GetNextHandler()->ProcessEventHere(event) ) + return true; + + // We don't have a handler for this event. + return false; +} + +bool wxEvtHandler::SafelyProcessEvent(wxEvent& event) +{ +#if wxUSE_EXCEPTIONS + try { - if ( GetNextHandler()->ProcessEvent(event) ) - return TRUE; +#endif + return ProcessEvent(event); +#if wxUSE_EXCEPTIONS } + catch ( ... ) + { + wxEventLoopBase *loop = wxEventLoopBase::GetActive(); + try + { + if ( !wxTheApp || !wxTheApp->OnExceptionInMainLoop() ) + { + if ( loop ) + loop->Exit(); + } + //else: continue running current event loop - // Finally propagate the event upwards the window chain and/or to the - // application object as necessary - return TryParent(event); + return false; + } + catch ( ... ) + { + // OnExceptionInMainLoop() threw, possibly rethrowing the same + // exception again: very good, but we still need Exit() to + // be called + if ( loop ) + loop->Exit(); + throw; + } + } +#endif // wxUSE_EXCEPTIONS } bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event) { - wxEventType eventType = event.GetEventType(); - int eventId = event.GetId(); - - // BC++ doesn't like testing for m_fn without != 0 + const wxEventType eventType = event.GetEventType(); 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 const wxEventTableEntry& entry = table.entries[i]; -#endif - - // 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 ) { - int tableId1 = entry.m_id, - tableId2 = entry.m_lastId; - - if ( (tableId1 == -1) || - (tableId2 == -1 && eventId == tableId1) || - (tableId2 != -1 && - (eventId >= tableId1 && eventId <= tableId2)) ) - { - event.Skip(FALSE); - event.m_callbackUserData = entry.m_callbackUserData; - - (this->*((wxEventFunction) (entry.m_fn)))(event); - - return !event.GetSkipped(); - } + if ( ProcessEventIfMatches(entry, this, event) ) + return true; } } - return FALSE; + return false; } void wxEvtHandler::Connect( int id, int lastId, - int eventType, + wxEventType eventType, wxObjectEventFunction func, wxObject *userData, wxEvtHandler* eventSink ) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = new wxEventTableEntry; - entry->m_eventType = eventType; - entry->m_id = id; - entry->m_lastId = lastId; - entry->m_fn = func; - entry->m_callbackUserData = userData; -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES if (!m_dynamicEvents) m_dynamicEvents = new wxList; // Insert at the front of the list so most recent additions are found first m_dynamicEvents->Insert( (wxObject*) entry ); + + // Make sure we get to know when a sink is destroyed + if ( eventSink && eventSink != this ) + { + wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + evtConnRef->IncRef( ); + else + new wxEventConnectionRef(this, eventSink); + } } bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, @@ -1204,19 +1414,23 @@ bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, wxEvtHandler* eventSink ) { if (!m_dynamicEvents) - return FALSE; + return false; + + // Remove connection from tracker node (wxEventConnectionRef) + if ( eventSink && eventSink != this ) + { + wxEventConnectionRef *evtConnRef = FindRefInTrackerList(eventSink); + if ( evtConnRef ) + evtConnRef->DecRef(); + } wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES - wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); if ((entry->m_id == id) && - ((entry->m_lastId == lastId) || (lastId == -1)) && + ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) && ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) && ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) && ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) && @@ -1226,56 +1440,38 @@ bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, delete entry->m_callbackUserData; m_dynamicEvents->Erase( node ); delete entry; - return TRUE; + return true; } node = node->GetNext(); } - return FALSE; + return false; } bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event ) { - wxCHECK_MSG( m_dynamicEvents, FALSE, + wxCHECK_MSG( m_dynamicEvents, false, wxT("caller should check that we have dynamic events") ); - int commandId = event.GetId(); - wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { -#if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); -#else // !WXWIN_COMPATIBILITY_EVENT_TYPES - wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); -#endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); - if (entry->m_fn) - { - // Match, if event spec says any id will do (id == -1) - if ( (event.GetEventType() == entry->m_eventType) && - (entry->m_id == -1 || - (entry->m_lastId == -1 && commandId == entry->m_id) || - (entry->m_lastId != -1 && - (commandId >= entry->m_id && commandId <= entry->m_lastId))) ) - { - event.Skip(FALSE); - event.m_callbackUserData = entry->m_callbackUserData; - -#if !WXWIN_COMPATIBILITY_EVENT_TYPES - if (entry->m_eventSink) - ((entry->m_eventSink)->*((wxEventFunction) (entry->m_fn)))(event); - else -#endif - (this->*((wxEventFunction) (entry->m_fn)))(event); + // get next node before (maybe) calling the event handler as it could + // call Disconnect() invalidating the current node + node = node->GetNext(); - if ( ! event.GetSkipped() ) - return TRUE; - } + if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0)) + { + wxEvtHandler *handler = entry->m_eventSink ? entry->m_eventSink + : this; + if ( ProcessEventIfMatches(*entry, handler, event) ) + return true; } - node = node->GetNext(); } - return FALSE; -}; + + return false; +} void wxEvtHandler::DoSetClientObject( wxClientData *data ) { @@ -1318,6 +1514,46 @@ void *wxEvtHandler::DoGetClientData() const return m_clientData; } +// A helper to find an wxEventConnectionRef object +wxEventConnectionRef * +wxEvtHandler::FindRefInTrackerList(wxEvtHandler *eventSink) +{ + for ( wxTrackerNode *node = eventSink->GetFirst(); node; node = node->m_nxt ) + { + // we only want wxEventConnectionRef nodes here + wxEventConnectionRef *evtConnRef = node->ToEventConnection(); + if ( evtConnRef && evtConnRef->m_src == this ) + { + wxASSERT( evtConnRef->m_sink==eventSink ); + return evtConnRef; + } + } + + return NULL; +} + +void wxEvtHandler::OnSinkDestroyed( wxEvtHandler *sink ) +{ + wxASSERT(m_dynamicEvents); + + // remove all connections with this sink + wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(), node_nxt; + while (node) + { + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); + node_nxt = node->GetNext(); + + if ( entry->m_eventSink==sink ) + { + if (entry->m_callbackUserData) + delete entry->m_callbackUserData; + m_dynamicEvents->Erase( node ); + delete entry; + } + node = node_nxt; + } +} + #endif // wxUSE_BASE #if wxUSE_GUI @@ -1345,4 +1581,38 @@ wxWindow* wxFindFocusDescendant(wxWindow* ancestor) return focusWin; } +// ---------------------------------------------------------------------------- +// wxEventBlocker +// ---------------------------------------------------------------------------- + +wxEventBlocker::wxEventBlocker(wxWindow *win, wxEventType type) +{ + wxCHECK_RET(win, wxT("Null window given to wxEventBlocker")); + + m_window = win; + + Block(type); + m_window->PushEventHandler(this); +} + +wxEventBlocker::~wxEventBlocker() +{ + wxEvtHandler *popped = m_window->PopEventHandler(false); + wxCHECK_RET(popped == this, + wxT("Don't push other event handlers into a window managed by wxEventBlocker!")); +} + +bool wxEventBlocker::ProcessEvent(wxEvent& event) +{ + // should this event be blocked? + for ( size_t i = 0; i < m_eventsToBlock.size(); i++ ) + { + wxEventType t = (wxEventType)m_eventsToBlock[i]; + if ( t == wxEVT_ANY || t == event.GetEventType() ) + return true; // yes, it should: mark this event as processed + } + + return false; +} + #endif // wxUSE_GUI